GB 24383-2009Agricultural and forestry machinery -- Inter-row mowing units -- Safety (English PDF)

5.1 General requirements

Mowing device shall comply with the provisions of this chapter safety requirements and/or measures. Further, the design of mowing apparatus of the present standard does not relate to the the risk should follow GB T 15706.1, principle/GB/T 15706.2 specified.

Except otherwise specified in the present standard, it should be consistent with mowing means GB 10395.1, GB 12265.1-1997 Table 1, Table 3, Table 4, Table 6, and EN745 regulations.

5.2 Cutting guard member

Mowing device should be installed completely cover the cutting member imperforate blade guard, the guard should ensure the safety of the cutting member outer track Distance is at least 50mm, and a rotating disk tip plane should exceed at least 3mm (see Figure 2).

The blade guard should be no sharp corners and sharp edges projections, the mechanical design of the swing arm should be capable of idling mowing member encounters an obstacle, such that mowing Rotational movement of the member is not transmitted to the blade guard.

The blade guard and ensure protection of machine parts should be able to withstand the vertical downward load 1200N. Further, as the blade anti Guard hits an obstacle capable of withstanding the force generated, they should be able to withstand the horizontal loads following.

--- 600N, maximum power mowing apparatus using a predetermined given in the description of not more than 37kW tractor use;

--- 1000N, other machinery and equipment for use.

The above requirements should be GB test procedures and acceptance rules of Appendix C 10395.1-2009 checked.

5.3 Hose protection

Hydraulically or pneumatically driven between the rows of mowing means, which pipes and hoses should be bundled, as far as possible avoid contact with hot surfaces, the contact friction surface and other external to avoid accidental damage. Hose and connector should be able to visual inspection, except for the frame located inside.

Exceeding 5MPa under pressure and/or temperature exceeds 50 °C, and less than 1m from the operator shall hydraulic hose or regulation JB T 3249 /Given for protection.

Any change of the injection flow direction components, may be considered an effective guard.

In millimeters

1 --- ground;

2 --- tip turning circle;

3 --- blade guard.

Figure 2

5.4 Protection of the thrower

During operation, high-speed rotation of the cutting member may object thrown danger and risk of injury to the operator, which should take protective Measures.

The test shall be specified in Chapter 6.

5.5 Requirements swing arm

Including the strength of the swing arm, installation, system control requirements and the control device shall comply with the relevant standards.

5.6 Noise

Noise emission interline mowing apparatus shall be measured GB 10395.1-2009 specified in Appendix B.

Noise limits should be consistent with the corresponding product standards.

6 --- Test Method Test thrower

6.1 General test conditions

During the test, the inter-row mowing apparatus should be operated in a rotational speed recommended by the manufacturer, for example. the power output shaft speed 540r/min or 1000r/min under operation.

All tests should use the same security guards.

Adjustable devices may affect the safety of the protective effect should be installed in the most unfavorable position.

During the test, it should be less than the advancing speed 8km/h.

6.2 Target

Targets should be placed in a natural, solid, level ground.

6.2.1 Suspended line between the target plate means after mowing tractor

Target divisions in accordance with the four upright 6.2.3 specification (see FIG. 3).

Separator 2 and the separator 4 should be a length of 4000mm.

Length of the separator 1 and separator unit 3 will depend on the tractor mower.

It should be perpendicular to the separator 1 separator 2. The separator 4 and the separator 2 to be parallel to the longitudinal axis of the tractor.

Separator means 2 should be placed outside the track running from the mowing 1000mm.

3 is connected to the separator and the separator 2, the separator 4 and perpendicular to each other.

6.2.2 Marking line

Target along the height from the ground height 600mm and 1200mm draw two lines labeled target plate divided into the following three regions, respectively known as.

--- lower region, the height from the ground between 0mm ~ 600mm;

--- Central, height from the ground between 600mm ~ 1200mm;

--- the upper zone, height from the ground between 1200mm ~ 2000mm.

On the target plate should draw a vertical line which is separated into a plurality of upstanding region width of 1000mm. Each upright incremental digital application area named.

A first upstanding region application number 1 indicates a separator, by successively clockwise upstanding numerals have other regions (see FIG. 3).

In millimeters

FIG 3 Test Target position thrower

6.2.3 Target composition

Separator should be made into a rigid frame, the frame is fixed to a basis weight of kraft paper 120g/m2 of.

6.3 Test material

Test materials shall be the following substances are mixed.

--- 50% of the sand;

--- 25% of the particle size of 8mm 16mm (not including 16mm) ~ grit;

--- 25% of the particle size of 16mm ~ 31.5mm (not including 31.5mm) gravel.

6.4 Test Method

In the prior mowing apparatus, perpendicular to the advance direction of the partition plate 3 at a distance of 2000mm, 150mm high build a group of about 300mm apart Cone pile of material, each pile of test material 10L (see 6.3).

The test shall be performed twice, each test shall include the following two stroke.

--- the first stroke, the mass of material placed in 1,3,5 ,, the test area;

--- second trip, the 2,4,6 ,, the mass of material placed in the test area.

Web cutting apparatus using the mass of material depends on the number of mowing.

Cutting height should be adjusted to 50mm.

Mowing means at the maximum speed recommended by the manufacturer by an experiment pile of material, a test is completed stroke.

If the results of two tests are significantly different, the third test should be carried out.

To distinguish between different tests, after each completion of the test, it shall be marked with a distinct mark on the target plate.

6.5 Acceptance

Impact mark to be included in the number of the impact of the marker region.

The results also meet the following three conditions, the test result is considered eligible.

--- the region between, two vertical lines 1000mm apart, each test the number of impact is less than 2;

--- In the area, there is no impact;

--- within the operator area, no impact.

Does not consider the impact of the lower zone.

If the above conditions are not satisfied, the mowing apparatus should be equipped with appropriate safety shield to ensure that the test material is not be thrown into the Ban Stopping the impact area, and the whole test should be repeated. In this case, the instructions for use should be clearly stated mowing apparatus should be installed only suitable Security guard to use.

7.1 Manual

It should be given in the instruction manual and comprehensive description information of machine maintenance and safety. Instructions should be consistent GB/T 15706.2 requirements.

Using the specification should be emphasized in particular the following information.

a) prohibited from entering the risk zone mowing apparatus;

b) after the stop command is issued, continued rotation of the cutting member can be dangerous, the manufacturer should be clear that this situation;

c) a cutting member health check shield, the safety shield and safety devices;

d) Replacement of the working member;

e) If any person close to the machine operator should terminate the operation;

f) that the risk of the machine into operation;

g) the risk thrower;

h) using a suitable blade and blade fixing member;

i) technical specifications of the blade and blade holder;

j) worn or damaged cutting member in danger of being thrown, and so when the details of how to replace the cutting member should be given to Details forming material and the cutting member;

k) the need to stop the machine before any intervention;

l) clear the blockage may occur correct program;

m) for maintenance need to use before the locking device into the lifting member in;

n) in the transport position the mowing device is placed before the blade has stopped should be recognized;

o) How safe is fixed during the information when the machine maintenance and repair;

Information p) machine noise levels and, if necessary, the information need to wear the hearing protection device;

q) If the mowing apparatus tractors without cab, the operator must wear goggles.

7.2 Mark

The machine should be in line with signs GB/T 15706.2-2007 specified in 6.4.

All machines should be clear and durable signs contain at least the following information.

--- manufacturer's name and address;

--- date of manufacture;

--- model or type;

--- serial number, if any;

--- quality basic machine.

In addition, the machine should be set to remind the following precautions warning signs.

Given --- during operation of the rotating member and the stop member will continue to rotate instruction;

--- operational areas have objects thrown;

--- allowed to enter the danger zone.

Appendix A

(Normative)

Schedule of Hazards

Table A. 1 gives a list of risk based on GB/T 15706.1 and GB/T 15706.2's.

The table set out different meaning (given the relevant provisions of this standard solution of) the last column is.

--- "not relevant". the machine that the danger does not exist.

--- "given". the presence of the dangerous machine. Solution is given in accordance with the terms specified GB/T 15706.1 and GB/T 15706.2 Safe disposal of hazardous General guidelines determined; which means.

- Whenever possible, eliminate or reduce the risk by design;

- Take protective measures;

- provide information on residual risks.

--- "section and a". the presence of a plurality of machine parts danger. Remedy Specify the terms given in the disposable part Parts of the danger, the danger exists for the remaining parts, to dispose of the dangerous you will have to take the other solutions of this standard Quasi did not give.

--- "not given". the presence of the dangerous machine, but in the present standard drafting process not considered.

Table A. 1 Danger List

Danger

The relevant provisions GB/T 15706.1-2007 GB/T 15706.2-2007 this standard gives solved Methods related provisions Mechanical hazards, such as the following to the workpiece or machine parts the prime cause.

---shape;

---relative position;

--- mass and stability (potential energy of elements);

--- mass and velocity (kinetic energy of elements);

--- insufficient mechanical strength;

--- caused by the accumulation of potential energy for the following reasons.

- the resilient element (spring); or - a liquid or a gas under pressure; or - vacuum;

--- machine assembly and parts 4.2 - -Given the risk of squeezing in 4.2.1, 4.2.2 1.1 4.2 5.2 Shear 1.2 5.2 risk given in 4.2.1, 4.2.2 4.2,5.2.1 Cutting or severing 1.3 4.2 5.2 4.2.1, 4.2.2 is given in danger 1.4 4.2.1, 4.2.2 dangerous wound - given 5.2 1.5 or inhalation hazard involved 4.2.1 4.14,5.2.1,5.5.3 irrelevant 1.6 shock hazard 4.2.1 - irrelevant 1.7 stabbed or stabbed danger 4.2.1 - given 5.2 1.8 dangerous friction or wear given in 4.2.1 4.3b) 5.2 4.2.1 dangerous high pressure fluid jet 1.9 - 5.3 are given

Table A. 1 (cont.)

Danger

The relevant provisions GB/T 15706.1-2007 GB/T 15706.2-2007 this standard gives solved Methods related provisions 1.10 (mechanical and workpiece/workpieces) 4.2.2 4.11.1 member projection hazard 5.4, Chapter 6, Given in 7.1 1.11 loss of stability (mechanical or machine parts) 4.2.2 irrelevant 4.6,5.2.6 1.12 for mechanical slip (due to the characteristics of the machine), and poured and fall risk 4.10 5.5.6 irrelevant 2 electrical hazards, e.g. caused by the following factors. 4.3 4.9 -2.1 electrical contact (direct or indirect) 4.3 - not relevant 2.2 4.3 electrostatic phenomena - not relevant 2.3 Heat radiation or other phenomena, such as the injection of the molten particles, Shorting chemical effects overload 4.3 - not relevant External electrical equipment 2.4 4.3 4.4 Effect of unrelated 3 thermal hazards, resulting in. 4.4 4.8.4 -3.1 by flame or explosion one can contact heat radiation Burns and scalds 4.4 - given in 5.3,7.1 3.2 due to heat or cold working environment on the health hazards 4.4 - not relevant 4 by the noise generated dangerous, leading to. 4.5 4.8.4 -4.1 Hearing loss (deafness), other physiological disorders (eg loss to Ping Heng, loss of consciousness) 4.5 - 7.1p) given in section

4.2 Interference language communication, acoustic signal, etc. 4.5 - 7.1p) given in section Danger generated by the vibration (nerves and blood vessels leading to a variety of disease) 4.6 4.8.4 irrelevant Produced by the radiation danger, in particular by the following factors cause.

6.1 arc - - irrelevant Laser 6.2 - - irrelevant Ion source radiation 4.7 6.3 - not relevant 6.4 high frequency electromagnetic field generated by the machine - - not relevant Mechanical processing, or use of materials and the discharge thereof Generation of hazardous substance, for example.

4.8 4.3b) -

Due to contact or inhalation of harmful liquids, gases, fumes and the danger caused by dust 4.8 - not relevant Fire or explosion hazard 7.2 4.8 - not relevant

7.3 Biological and microbiological (germs or bacteria) the risk of 4.8 - not relevant

By ignoring the machine design ergonomics generated Risk (human and mechanical features and capabilities uncoordinated), such as Caused by the following factors.

4.9 4.8 -

8.1 Unhealthy attitude or excessive force 4.9 4.8.2,4.8.5 irrelevant

Table A. 1 (cont.)

Danger

The relevant provisions GB/T 15706.1-2007 GB/T 15706.2-2007 this standard gives solved Methods related provisions

8.2 Improperly considered person's arm or leg and foot structure 4.9 4.8.3 irrelevant

8.3 Ignores the use of personal protective equipment 5.5 - not relevant

Face inadequate lighting 8.4 - 4.8.6 not relevant

8.5 Spirit too much tension or lack of preparation, etc. 4.9 4.8.5 irrelevant

4.9 4.8 8.6 Human error is not related

10.2 Fluid or mechanical parts accidentally thrown - 4.10.5 not relevant

10.3

Failure control system failure (unexpected start, accidental over flow) 3.29,3.30,3.31 4.11.1 irrelevant Assembly errors 10.4 - - not relevant

10.5 Topples over, an unexpected loss of stability 4.2.2 4.6 uncorrelated

Due to security measures wrong or incorrect positioning of production Health hazards, such as.

11.1 5.3 7.1 3.25 given in various types of protective devices 11.2 5.3 7.1 3.26 given in all kinds of safety (protection) devices Start and stop means 11.3 - 7.1 4.11.1 given in 11.4 flag safety and signaling devices - given in 4.8.8,6.2,6.3,6.4 7.2 11.5 types of information or alarm apparatus - given in 6.4 7.1

11.6 Energy cutting device - 5.5.4 irrelevant

Stop devices 11.7 - unrelated 5.5.2,5.5.3

11.8 Workpiece feeding/extraction steps - 4.14 uncorrelated

11.9 Security adjustments and/or maintenance of major equipment and accessories 3.3,5.3a)

4.7,4.11.12,

4.15,5.5.5

Given in 7.1

11.10 Exhaust the like - - not relevant