GB/T 39949.2-2021Hydraulic fluid power - Mounting dimensions for accessories of single rod cylinder - Part 2: 16 MPa compact series with bores from 25 mm to 220 mm (English PDF)

Foreword

GB/T

39949 "Installation Dimensions of Hydraulic Drive Single Rod Cylinder Accessories" is divided into 3 parts.

---Part 1.16

MPa medium series and 25

MPa series;

---Part 2.16

MPa Bore 25

mm~220

mm compact series;

---Part 3.16

MPa Bore 250

mm~500

mm compact series.

This part is GB/T

Part 2 of 39949.

This part is in accordance with GB/T

1.1-2009

The rules given are drafted.

This section uses the redrafting method to modify and adopt

ISO

1184 instead of ISO

2768-2 (see 5.3);

* Adopt GB/T of international standard with modification

1804 instead of ISO

2768-1 (see 5.2);

* Use GB/T equivalent to adopting international standards

9094 instead of ISO

6099 (see Chapter 6);

* Use GB/T equivalent to adopting international standards

17446 instead of ISO

5598 (see Chapter 3).

--- "Single earring bracket" in accessory type AB2 is modified to "single earring bracket, symmetrical type" (see Chapter 6, Figure 7, Table 7, Example 7,

ISO

Chapter 1 of 8133.2014, Figure 7, Table 7, Example 7).

---Accessory type AB4

"Double earring bracket, symmetrical type" is modified to "double earring bracket, through hole, symmetrical type" (see Chapter 6, Figure 8,

Table 8.Example 8, ISO

Chapter 1 of 8133.2014, Figure 8, Table 8, Example 8).

---The drawing of the accessory type AL6 is modified to include the structure diagram of the lock plate, pin shaft, double earrings and screws (see Figure 4, ISO

8133.

Figure 4 in.2014).

--- Increase the user's use requirements in the swing angle. "(When the user uses it, the swing angle should not exceed +/-3°) (see 7.1.2)".

This part was proposed by China Machinery Industry Federation.

This part is organized by the National Hydraulic and Pneumatic Standardization Technical Committee (SAC/TC

3) Concentration.

Drafting organizations of this section. Hefei Changyuan Hydraulic Co., Ltd., Shaoguan City, Guangdong Province, Quality and Metrology Supervision and Testing Institute, Yangzhou City Jiangduyong

Jian Co., Ltd., Jiangyin Hongteng Machinery Co., Ltd., Zhejiang University, National Intelligent Manufacturing Equipment Product Quality Supervision and Inspection Center (Zhejiang), North

Beijing Machinery Industry Automation Research Institute Co., Ltd.

1 Scope

GB/T

This part of 39949 provides 16

MPa bore is 25

mm~220

mm compact series single rod hydraulic cylinder accessories

Install size.

This part applies to JB/T

The hydraulic cylinder specified in 12706.2.

Note.

The hydraulic cylinder attachment transmits the load mechanically, and its design is based on the maximum load of the hydraulic cylinder, which is in line with GB/T

2348 and GB/T

2346 rule

The cylinder diameter of the hydraulic cylinder is related to the nominal pressure.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T

1184 Shape and position tolerance without tolerance value (GB/T

1184-1996,eqv

ISO

2768-2.1989)

GB/T

1800.2 Product Geometric Technical Specification (GPS) Linear Dimension Tolerance ISO Code System Part 2.Standard Tolerance Zone

Code and limit deviation table of hole and shaft (GB/T

1800.2-2020,ISO

286-2.2010, MOD)

GB/T

1804 General tolerance The tolerance of linear and angular dimensions without tolerance (GB/T

1804-2000,eqv

ISO

2768-1.

1989)

GB/T

9094 Fluid transmission system and component cylinder installation size and installation type code (GB/T

9094-2020,ISO

6099.

2018, IDT)

GB/T

17446 Vocabulary of fluid transmission systems and components (GB/T

17446-2012,ISO

5598.2008, IDT)

3 Terms and definitions

GB/T

17,446

The defined terms and definitions apply to this document.

4 Installation size

The installation dimensions of the accessories should be selected from Figure 1 to Figure 11 and the corresponding Table 1 to Table 11.

5 Tolerance

5.1 The installation dimensional tolerances of the accessories should meet the requirements of Figure 1~Figure 11 and the corresponding Table 1~Table 11.

5.2 All tolerance grades of linear and angular dimensions that are not marked in this section should be grade m, marked as. "GB/T

1804-m", should meet

GB/T

The provisions of 1804.