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Gear pulling out structure and method

A gear and pull-out technology, applied in the field of gear pull-out structure, can solve the problems of labor, time, loss, etc., and achieve the effect of saving the time of dismantling the gear, reducing wear and prolonging the service life.

Inactive Publication Date: 2015-05-06
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is time-consuming and labor-intensive to remove accessories such as water tank, crankshaft pulley, generator, belt tensioner shaft, stone gauge cover, and cause unnecessary loss of other components

Method used

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  • Gear pulling out structure and method
  • Gear pulling out structure and method
  • Gear pulling out structure and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like figure 1 As shown, an embodiment of the present invention provides a gear pull-out structure 10 for removing the gear 20 from the rotating shaft (not shown in the figure). The gear 20 is provided with a threaded hole 201, and the gear pull-out structure 10 It includes a base body 11 , an ejector bolt 12 and a fastening bolt 13 . The base body 11 is provided with a threaded through hole 111 and a limit through hole 112; the external thread of the ejector bolt 12 is matched with the inner thread of the threaded through hole 111, and the ejection bolt 12 penetrates from one side of the threaded through hole 111, The other side is protruded to stand against the rotating shaft; the outer thread of the fastening bolt 13 matches the inner thread of the threaded hole 201 of the gear 20 for connection with the gear 20, and the fastening bolt 13 extends from the limit through hole One side of the 112 penetrates and the other side penetrates out. The size of the bolt head of...

Embodiment 2

[0028] like figure 2 As shown, an embodiment of the present invention provides a gear pull-out structure 10 for removing the gear 20 from the rotating shaft (not shown in the figure). The gear 20 is provided with at least two threaded holes 201. In an embodiment, the two threaded holes 201 are identical and symmetrical with respect to the drive axis. In other embodiments, the two threaded holes 201 may be threaded holes with different inner diameters and / or inner threads. Compared with Embodiment 1, the difference between the gear pull-out structure 10 of this embodiment is that: see image 3 and Figure 4 , the base body 11 is provided with a threaded through hole 111 and two limit through holes 112, and the two limit through holes 112 are symmetrical about the threaded through hole 111; the gear pull-out structure 10 includes two fastening bolts 13, two fastening bolts 13 corresponds to the limiting through holes 112 one-to-one.

[0029] see figure 2 , when using the g...

Embodiment 3

[0037] An embodiment of the present invention provides a method for pulling out a gear, which is used to remove a gear from a rotating shaft, wherein the gear is provided with at least one threaded hole, and the method is implemented by using the gear pulling structure provided in Embodiment 1 or 2, The method includes:

[0038] Align the threaded through hole of the gear pull-out structure with the rotating shaft, and align the limit through hole of the gear pull-out structure with the threaded hole;

[0039] Rotate the fastening bolt to make it fixedly connected with the gear;

[0040] Twist the ejector bolt to make it stand against the rotating shaft;

[0041] Continue to screw the ejector bolt to make the gear and the base body leave the rotating shaft together.

[0042] In the method for pulling out the gear provided by the embodiment of the present invention, the gear and the base body are firstly fixed to form a whole, and then a downward force is applied to the rotat...

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Abstract

The invention relates to a gear pulling out structure and method. The gear pulling out structure and method are used for disassembling a gear from a rotating shaft. The gear is provided with at least one threaded hole. The gear pulling out structure comprises a base body, an ejecting bolt and at least one fastening bolt, wherein the base body is provided with a threaded through hole and at least one limiting through hole; the ejecting bolt is matched with the threaded through hole, penetrates in the threaded through hole from one side and penetrates out from the other side, and is used for supporting the rotating shaft; the fastening bolts are matched with the threaded holes of the gear, penetrate in the limiting through holes from one sides and penetrate out from the other sides, and the bolt heads of the fastening bolts are clamped in the limiting through holes and used for being connected with the gear. By the adoption of the gear pulling out structure, the gear can be disassembled from the rotating shaft of the gear without disassembling other auxiliary components around the gear, the time for disassembling the gear is saved greatly, and working efficiency is improved; meanwhile, due to the fact that the other auxiliary components do not need to be disassembled, abrasion on the other components is reduced, and the service life of a whole machine is prolonged.

Description

technical field [0001] The invention relates to a gear pull-out structure, belonging to the field of gear maintenance, in particular to a gear pull-out structure which is convenient for gear maintenance. Background technique [0002] The normal operation of the engine is inseparable from the accurate opening and closing of the intake and exhaust valves, and the accurate operation of the oil supply piston, and the accurate movements of the intake valve, exhaust valve and oil supply piston are guaranteed by the timing gear. [0003] When the timing gear of the fuel supply high pressure pump does not correspond to the engine timing gear, it is easy to cause the engine fuel supply advance angle to be inaccurate, resulting in inaccurate engine power. When repairing the engine with this fault, it is usually necessary to remove the water tank, crankshaft pulley, generator, belt tension shaft, stone gauge cover and other accessories around the timing gear of the high-pressure pump, ...

Claims

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Application Information

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IPC IPC(8): B25B27/02
CPCB25B27/023
Inventor 陈汇江明晏飞金海明刘畅谢春良席东升李富陈佳刘艳洞
Owner STATE GRID CORP OF CHINA