LY/T 3166-2019Forestry machinery -- Monorail transporter for forestry and orchard in mountain with combustion-engine as power source (English PDF)

6.1 General requirements

6.1.1 Use environment

The transport aircraft should be able to be used normally under the following environmental conditions.

a) Ambient temperature. 5 °C ~ 40 °C;

b) The altitude is less than 1 000 m; after the altitude exceeds 1 000 m, the power is allowed to decrease by 12% for every 1 000 m increase in altitude.

6.1.2 Site conditions

The working site should be able to ensure the basic space requirements for the track laying and transport operations of the conveyor.

Passed normally.

6.1.3 Main instruments and appliances for testing

6.1.3.1 The instruments and appliances used for testing shall be inspected and calibrated by the competent metrology department, and they shall be used within the validity period.

6.1.3.2 The accuracy of the main instruments and appliances used in the test shall meet the following requirements.

a) Tape measure. ± 1 mm;

b) Vernier caliper. ± 0.02 mm;

c) Stopwatch. ± 0.1 s;

d) Rally meter. ± 1%;

e) Tachometer. ± 0.5%;

f) Angle ruler. ± 1 °;

g) Sound level meter. ± 0.5 dB;

h) Thermometer. ± 1 °C;

i) Bench scale. ± 10 g;

j) Slope meter. ± 1 °;

k) Radian template with a radius of 4 m. ± 1 cm.

6.2 Supporting Power

6.2.1 Requirements

The matching engine shall meet the requirements of GB/T 1147.1.

6.2.2 Inspection

The matching engine shall be inspected in accordance with GB/T 1147.2.

6.3 Overall performance

6.3.1 Starting performance

6.3.1.1 Requirements

Starting performance should meet the requirements of GB/T 1147.1.

6.3.1.2 Inspection

Starting performance shall be checked in accordance with GB/T 1147.2.

6.3.2 Load rating

6.3.2.1 Requirements

When the conveyor runs safely on a horizontal straight track, a track with a slope of 40 °, and a curved track with a slope of 40 ° and a radius of no more than 4 m the rated load should not be less than the design requirements.

6.3.2.2 Inspection

Set the track as a horizontal straight track, a straight track with a slope of 40 °, and a curved track with a slope of 40 ° and a radius of 4 m, horizontal the length of the straight track is not less than 20 m, the length of the straight track with a slope of 40 ° is not less than 10 m, and the arc length of the curved track is not less than the total length of the conveyor degree. The conveyor is loaded at the rated load and runs on the track to verify that it can operate normally.

6.3.3 Maximum operating slope

6.3.3.1 Requirements

Under the condition of rated load, the conveyer should be able to run normally on the slope with the track slope not less than 40 °.

6.3.3.2 Inspection

Perform as specified in 6.3.2.2.

6.3.4 Maximum operating speed

6.3.4.1 Requirements

Under the condition of rated load, the maximum operating speed of the conveyor on the horizontal track should not be greater than the design value; on the track with a slope of 40 °, when running downhill, its maximum speed should be no more than 1.2 times the design value.

6.3.4.2 Inspection

The transporter runs safely at the rated load and the engine is at the highest speed. After the speed is stable, the passing distance per unit time is measured.

The horizontal test distance is not less than 20 m and the slope test distance is not less than 10 m. The test is carried out on the track specified in 6.3.2.2.

Each was performed 3 times, and the results were averaged.

6.3.5 Automatic stop function

6.3.5.1 Requirements

When the track is laid, both ends should be equipped with automatic stop limit devices. The transporter operates at the rated load and the maximum operating speed.

When the lever contacts the limit device, the conveyor should be able to stop automatically and smoothly.

6.3.5.2 Inspection

The conveyor is running at the rated load and maximum operating speed. When the brake lever contacts the limit device, visually check whether the conveyor can automatically Stop smoothly.

6.3.6 Sealability

6.3.6.1 Requirements

There should be no oil leakage from the conveyor.

6.3.6.2 Inspection

After the transporter has been working at rated load for 30 minutes, it shall be inspected visually.

6.4 Performance of main components

6.4.1 Orbit

6.4.1.1 Requirements

The slope of the track shall meet the requirements of GB/T 1147.1 for the pitch and roll angles of internal combustion engines. The minimum turning radius should not be less than 4 m.

When the bearing capacity of the track is not greater than the sum of the driving device, the trailer and 1.5 times the rated load, the track and the bracket should not be deformed or displaced.

There should be no cracks in the weld and the coating should be free of detachment.

The gap between the individual joints of the track should not be greater than 6 mm, the joints should transition smoothly, and there should be no blockage when the conveyor passes. Track surface it should be flat and smooth, and there should be no distortion or unevenness.

The rack and pinion mesh drive of the conveyor track, the tooth pitch error between the two teeth at the joint between the two racks should not be greater than 2 mm.

6.4.1.2 Inspection

Install the driving device on the track and adjust the inclination of the internal combustion engine. Inclinometer for maximum uphill and maximum downhill track angle the pitch angle of the internal combustion engine is detected separately; the roll angle of the internal combustion engine is detected at the minimum turning radius of the track.

The minimum turning radius can be compared with an radian template with a radius of 4 m to determine whether it meets the requirements.

The trailer is loaded with 1.5 times the rated load, and the track, bracket, weld, coating and track are visually inspected after 100 hours of maximum operating speed.

Face, and use a vernier caliper to measure the gap between the individual joints. Visually inspect the transporter for blockages when passing the joint during operation.

The rack and pinion meshes the track of a conveyor. The vernier caliper is used to measure the distance between two adjacent teeth at each track joint.

Calculate its error.

6.4.2 Driving wheels and walking wheels

6.4.2.1 Requirements

The driving wheel and each traveling wheel should be flexible and free from jamming.

6.4.2.2 Inspection

During the rated load inspection, visually check whether the driving wheels and each traveling wheel are rotating flexibly and whether they are stuck.

6.5 Security

6.5.1 Emergency braking distance

6.5.1.1 Requirements

When the conveyor is loaded with a rated load, it runs at a maximum operating speed on a track with a slope of 40 °, brakes in an emergency, and downhill the braking distance should be no more than 1 m, and it should be able to stop stably when going uphill.

6.5.1.2 Inspection

On the track specified in 6.3.2.2, the engine is running at the highest speed and the transporter is tested at full load. Observe the transporter when going uphill Whether it can be parked stably; when the speed of the transporter is stable on a downhill slope, pull the control handle to determine the braking distance from when the brake starts to when the transporter stops from. The test should be performed at least 3 times, and the results are averaged.

6.5.2 Ramp parking performance

6.5.2.1 Requirements

The conveyor should be able to remain stationary after braking on a track with a slope of 40 ° under the rated load state, and it can be maintained for at least 5 minutes.

6.5.2.2 Inspection

Place the transporter under the rated load on a track with a slope of 40 °, observe whether the transporter moves after braking, and record that the transporter is at Keep on track for the time.

6.5.3 Lateral stability

6.5.3.1 Requirements

When the load center of gravity of the transporter is not greater than 25% of the width of the stage under the rated load, the static state should be stable. Take the most it should work normally when the large running speed passes the curved track specified in 6.3.2.2.

6.5.3.2 Inspection

Under the rated load state of the conveyor, the center of gravity of the load is offset by 25% from the centerline of the stage, and the static stability and the maximum operating speed are checked separately.

The degree of stability when passing through curved orbits, the load center of gravity was tested separately in different offset directions, and at least 3 tests were performed in each direction.

6.5.4 Safety protection device

6.5.4.1 Requirements

For exposed rotating, transmission parts, and hot surfaces that may be touched by the operation and related personnel, safety protection devices shall be provided to prevent normal operation.

Injuries caused by accidental personnel contact during operation and maintenance of the machine. The safety protection device shall meet the requirements of GB 10395.1.

6.5.4.2 Inspection

Visually check that the protection of the hazardous area meets the requirements. Inspection of safety protection devices shall be conducted in accordance with the provisions of GB 10395.1.

6.5.5 Safety warning signs

6.5.5.1 Requirements

Safety warning signs should meet the following requirements.

a) All exposed moving parts and hot surfaces that may cause personal injury shall be affixed with prominent permanent safety warning signs;

b) The sign "Warning. no man!" should be fixed at a place easily seen by the operator;

c) The safety warning signs shall meet the requirements of GB 10396, and the safety warning signs shall be explained in the instructions.

6.5.5.2 Inspection

Visually check whether safety warning signs are set and whether the safety warning signs meet the requirements of GB 10396.

6.5.6 Noise

6.5.6.1 Requirements

The operator's ear noise (A-weighted sound pressure level) should not be greater than 95 dB.

6.5.6.2 Inspection

Inspection shall be carried out according to the method specified in GB/T 16955.

6.6 Reliability

6.6.1 Requirements

6.6.1.1 Under normal working conditions, the working time before the first failure should be not less than 100 hours, and the average non-fault working time should be not less than 35 hours.

The reliability should not be less than 95%.

6.6.1.2 The following conditions are considered as machine failure.

a) the operating mechanism fails;

b) the brake function fails;

c) The speed limit function fails;

d) parts and components are damaged;

e) Derailed transport.

6.6.2 Inspection

Under the conditions of 6.1.1 and 6.1.2 in the form of production test, the test time is not less than.200 hours, the test allows intermittent advance OK, but each continuous working time should be no less than 3 h. During the test, maintenance is allowed according to the instructions. Operators and maintenance personnel the operating procedures shall be strictly implemented in the test cycle operation. Recording of the transporter's operation from the start to the first failure (non-human damage to parts, performance the index falls below the value specified in this standard, and the total working time (h) is not counted for minor faults.

Calculate the average trouble-free working time according to formula (1).

MTBF 0=

In the formula.

MTBF-Mean time between failures, in hours (h);

0T-pure operation time, unit is hour (h);

n--number of failures.

Calculate the reliability according to formula (2).

TTT

In the formula.

K-reliability;

0T-pure operation time, unit is hour (h);

1T-Sum of troubleshooting time, in hours (h);

2T-Sum of maintenance time, the unit is hour (h).

6.7 Appearance quality

6.7.1 Requirements

6.7.1.1 The surface of plastic parts shall be smooth and bright in color, and shall be free from defects such as cracks and shrinkage.

6.7.1.2 The stamped parts shall be complete without cracks or burrs.

6.7.1.3 Castings shall be free from defects such as cold insulation, shrinkage, and loose deformation.

6.7.1.4 Weldments shall have flat welds and shall be free from defects such as burn-through, cracks, and missing welds.

6.7.1.5 The plating of plated parts shall be uniform, firmly adhered and flat.

6.7.1.6 The surface painting shall be uniform and smooth, and there shall be no paint leakage or severe flow marks. The surface quality of painted parts should meet the requirements of JB/T 5673.

6.7.2 Inspection

6.7.2.1 Visually check whether the surface of plastic parts, the quality of stampings, castings, welds, appearance of paint film, etc. meet the requirements.

6.7.2.2 The quality of paint shall be inspected in accordance with JB/T 5673.

6.7.2.3 The plating quality of the plated parts shall be inspected in accordance with the methods specified in GB/T 9793.

6.8 Assembly quality

6.8.1 Requirements

6.8.1.1 All parts must be qualified before assembly.

6.8.1.2 After assembling, the moving parts of the conveyor shall be flexible and free from jamming, and the operation shall be stable and reliable, and there shall be no abnormal noise.

6.8.1.3 The connections of all parts and components shall be firm and reliable, and the screw connections of important parts shall be tightened according to regulations.

6.8.1.4 Each control mechanism of the transport machine should be light and flexible, with appropriate tightness, and the stroke adjustment of each mechanism should meet the requirements of the instruction manual.

The operating member with automatic return should be able to reset automatically after the operating force is removed; the operating member with non-automatic return should stop reliably at the operating position.

6.8.1.5 When the transporter is working at various speeds, the transmission should not be out of gear or out of gear; the transmission system should not have abnormal sounds, nor should it There should be overheating; the shift lever and its transmission lever should not interfere with other components.

6.8.1.6 Parts that are easily loosened shall have reliable anti-loosening devices.

6.8.2 Inspection

Operate the transporter and inspect it visually and operationally.

7.1 Signs

7.1.1 Requirements

7.1.1.1 Each transporter shall fix the product label in an obvious position. The label shall comply with the requirements of GB/T 13306. The label shall be marked as follows.

Content.

a) product model and name;

b) main technical parameters of the product;

c) trademarks (if any);

d) product number;

e) production date;

f) the name and address of the manufacturer;

g) Product implementation standard code.

7.1.1.2 Control mechanisms such as the gearshift lever, handle, and switch of the transport aircraft shall be on or near the control mechanism, except for their very clear functions Use durability signs to clearly indicate their functions, operating directions, etc .; the operating symbols for signs should have a clear color difference from the background.

7.1.2 Inspection

Check visually for completeness. Except for permanent signs such as casting and etching, non-permanent signs should first be wiped with a cloth soaked in water 15s, then wipe with rags soaked in hexane for 15s, observe whether the signs are clear, curled or peeling.

7.2 Instruction Manual

7.2.1 Requirements

The transporter shall be provided with an instruction manual, and the preparation of the instruction manual shall comply with the provisions of GB/T 9480.

7.2.2 Inspection

Check the contents of the instruction manual visually.

7.3 Packaging

7.3.1 Requirements

7.3.1.1 The packaging should be firm and reliable, to ensure that it will not be injured and wet during normal shipment, and that it meets the transportation requirements, and has moisture and pressure resistance.

Measures. If the customer has special requirements, it can be decided by both sides of the product supply and demand. The packing box should meet the requirements of GB/T 13384.

7.3.1.2 There should be product certification, instruction manual, packing list, quality commitment letter or three guarantees certificate, accessories and random labor in the packing box.

With.

7.3.1.3 The product should be cleaned before packaging, and exposed processing surfaces other than the painted surface should be coated with rust inhibitor.

7.3.1.4 The marking on the packaging box shall comply with the provisions of GB/T 191. The following shall be marked on the outside of the packing box.

a) Product model and name;

b) the date of manufacture;

c) the number of this kit;

d) packing box size (length × width × height), mm;

e) the name and address of the manufacturer;

f) total or net mass, kg;

g) Marks required for transportation and storage.

7.3.2 Inspection

Inspection of product packaging shall be carried out in accordance with GB/T 13384, and the rest shall be inspected visually.

7.4 Transport and storage

7.4.1 During transportation and storage of the machine, it must not be bumped, damped or stressed.

7.4.2 The machine should be stored in a ventilated and dry warehouse. When stored in the open air, there should be facilities for protection from rain, sun, moisture and water.

7.4.3 The machine must not be mixed with corrosive or toxic substances.