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Electric EGR valve shell structure, and assembly tool and assembly method thereof

A technology of EGR valve and shell structure, which is applied in household appliances, other household appliances, household components, etc., can solve the problems of increased disassembly and maintenance of EGR valves, increased complexity of injection molds, and no function, etc., so that the assembly method is simple and easy to learn , Reduce assembly cost, reduce the effect of parts manufacturing cost

Inactive Publication Date: 2016-12-07
BEIJING U BRIDGE CHAOYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the lock used during assembly has no effect during the use of the EGR valve, but increases the difficulty when disassembling and maintaining the EGR valve
Moreover, the lock itself also increases the complexity of the injection molds of the three parts of the motor housing, the middle housing and the upper housing, increasing the cost of the mold

Method used

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  • Electric EGR valve shell structure, and assembly tool and assembly method thereof
  • Electric EGR valve shell structure, and assembly tool and assembly method thereof
  • Electric EGR valve shell structure, and assembly tool and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment is an electric EGR valve housing structure, such as figure 1 shown. This embodiment includes: a motor outer casing 3, an intermediate casing 4, and an upper casing 5 that have a plurality of connecting through holes and are sequentially connected to the actuator casing 2 through the connecting bolts 1 passing through the connecting through holes, The connecting bolts passing through the respective connecting through holes are the only way of connecting the outer casing of the motor, the middle casing and the upper casing.

[0025] The housing structure of the electric EGR valve described in this embodiment is composed of four parts: the outer housing of the electric motor, the middle housing, the upper housing and the actuator housing. Threaded screw holes are provided on the actuator casing, and lifting lugs with mounting through holes are arranged around the middle functional parts of the three casing parts of the motor outer casing, the middle casing...

Embodiment 2

[0030] This embodiment is an assembly tool for the electric EGR valve driving structure described in Embodiment 1, such as figure 2 shown. This embodiment includes: a positioning end rod 6, the positioning end rod is connected with the positioning rod 7, the diameter of the positioning rod matches the diameter of the connecting through hole and is smaller than the diameter of the positioning end rod, the One end of the positioning rod connected with the positioning end rod is provided with a positioning end 8, and the other end of the positioning rod is provided with an elastic stopper 9. The thickness of the superimposed part of the connecting through hole of the shell.

[0031] The function of the assembly tool described in this embodiment is to temporarily thread together the three parts of the motor outer casing, the middle casing and the upper casing, so as to facilitate the penetration of connecting bolts in the connecting through holes. The positioning rod has two fu...

Embodiment 3

[0039]This embodiment is an improvement of the second embodiment, and is a refinement of the second embodiment regarding the positioning end rod. The positioning end rod described in this embodiment is provided with a pull ring 10, such as figure 2 shown.

[0040] The size of the pull ring can pass through a finger.

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Abstract

The invention relates to an electric EGR valve shell structure, and an assembly tool and an assembly method thereof; the electric EGR valve shell structure includes a motor outer shell, an intermediate shell and an upper shell having a plurality of connecting through holes and successively connected to an actuating mechanism shell through connecting bolts passing through the connecting through holes; the connecting bolts passing through the connecting through holes respectively are an only connecting way of the motor outer shell, the intermediate shell and the upper shell. According to the electric EGR valve structure, a temporary fixing measure of locking buckles is abandoned, a special assembly tool is used for assembly, the structure is simpler and is easier to assemble, the manufacturing cost of parts is reduced, and the assembly cost is also reduced. The special assembly tool is quite simple and is extremely low in cost. The assembly method is also quite simple and easy to learn, and can be quickly grasped by assembly personnel.

Description

technical field [0001] The invention relates to an electric EGR valve shell structure, an assembly tool and an assembly method, and is a mechanical device shell, an assembly process method thereof, and a special tool used in the assembly process. Background technique [0002] The existing electric EGR valve housing is mainly composed of four parts, the motor outer housing, the middle housing, the upper housing and the actuator housing. Four parts are made of engineering plastics. For the convenience of assembly, elastic plastic locks are designed on the three parts of the motor housing, the middle housing and the upper housing. When assembling, first use the lock to temporarily combine the three parts, and then use the bolts to firmly connect the three parts to the actuator housing. After assembly, the snap lock has no function. Since the buckle is a plastic elastic part, it is very fragile, and great care must be taken during assembly. Once the buckle breaks, the entire ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/56B29L31/00
CPCB29C65/562B29L2031/7506
Inventor 景建周吴思玉杨晓明
Owner BEIJING U BRIDGE CHAOYANG