CN218698436U

CN218698436U - Novel locomotive main engine oil pump gear puller

Info

Publication number: CN218698436U
Application number: CN202222959859.8U
Authority: CN
Inventors: 徐丹锋; 何复礼; 全建泽; 吴杭淇; 黄效东; 王冠卿
Original assignee: Zhejiang Jinwen Railway Development Co ltd
Current assignee: Zhejiang Jinwen Railway Development Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-24
Anticipated expiration: 2032-11-08

Abstract

The application discloses novel locomotive main engine oil pump gear extractor, extractor includes: the clamping claw is of an L-shaped hook body structure, the gap ring is sleeved on the peripheral surface of the outer end of the driving shaft by a certain width and is an inner sleeve which is spliced in half; a threaded sleeve is sleeved in the inner sleeve in a limiting way, and a driving screw tightly propped against the center of the outer end of the driving shaft penetrates through the thread in the threaded sleeve; and the clamping jaw comprises a connecting disc and an outer sleeve which are hinged along the circumferential direction at intervals. The gear puller is provided with the inner sleeve which is limited by the driving shaft sleeve of the gear, so that the axial alignment of the driving screw and the driving shaft is realized, the outer end center of the driving shaft is acted on by the gear in the rotating process of the driving screw, the driving shaft is driven to be separated from the gear along the axial direction, the problem that the driving screw is deflected with the driving shaft due to overlarge axial advancing force is avoided, the limit of the inner sleeve is realized, the effectiveness of applying axial disassembling force by the driving screw is realized, the aim of labor-saving disassembly is finally fulfilled, the disassembling time is shortened, and the operation efficiency is improved.

Description

Novel locomotive main engine oil pump gear puller

Technical Field

The application relates to the technical field of main engine oil pump overhaul, in particular to a novel locomotive main engine oil pump gear puller.

Background

The main engine oil pump is used for pressurizing the engine oil in the oil pan and then pumping the engine oil to the oil filter and each lubricating oil channel so as to lubricate each main moving part of the engine and filter the engine oil. The main part of the main oil pump comprises a gear, when the gear is rotated, gear teeth are meshed with each other and are separated from each other, a working cavity is formed, and oil is sucked and pressed out, so that the effect of a continuous lubricating oil pump is achieved.

At present, when the diesel locomotive is overhauled, the average time for detaching and evaluating the gear of the main oil pump of the diesel engine is about 30 minutes through field inspection, and the detaching efficiency is low. And adopt present gear disassembly tools (mainly keep away from being used for on the gear, exert axial external force to the drive shaft of gear simultaneously, and then realize gear and drive shaft along the dismantlement operation that the axial slip breaks away from), can practice thrift general dismantlement time. The tool with the disassembly principle has the following problems during disassembly: because the gear is usually assembled in the middle part position department of its drive shaft, the gear will break away from the one end of drive shaft, longer width that breaks away from has, it is long when there is longer dismantlement, under this condition, when the drive power towards the gear direction is applyed to the outer end of the drive shaft of gear, can have the axial skew of application of force spare and drive shaft, therefore cause on the drive shaft that applied dismantlement external force can not effectual transmission to the gear, therefore can increase the application of force dynamics, when artifical the dismantlement, the increase of application of force and then can increase when dismantling for a long time, great application of force after the skew also causes the damage and the potential safety hazard of dismantling the frock easily simultaneously.

Disclosure of Invention

To the problem that above-mentioned exists, this application aims at providing a novel locomotive main engine oil pump gear extractor, and it is spacing through the endotheca, realizes that drive screw exerts the validity of axial disassembly force to finally reach laborsaving dismantlement's purpose, shorten the takedown time, improve the operating efficiency.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows: the utility model provides a novel locomotive main engine oil pump gear extractor which characterized in that, extractor includes: clamping a component: the gear is closely contacted with the axial inner side surface of the gear, and external force towards the axial disassembly direction of the gear is applied to the gear;

a positioning member: the gear is limited with an outer end ring sleeve of a driving shaft of the gear;

labor-saving part: driving the positioning component to apply an external force to the outer end of the driving shaft;

connecting parts: and connecting the clamping part with the labor-saving part, and enabling the labor-saving part to be in contact with the positioning part.

Preferably, the clamping part is a clamping claw with an L-shaped hook body structure, and the clamping claw is arranged at intervals along the circumferential direction and is in synchronous contact with the axial inner side face of the gear.

Preferably, the positioning component is an inner sleeve which is sleeved on the peripheral surface of the outer end of the driving shaft by a gap ring, has a certain width and is spliced in half.

Preferably, the labor-saving part comprises a threaded sleeve sleeved in the inner sleeve in a limiting manner, and a driving screw tightly propped against the center of the outer end of the driving shaft penetrates through the thread in the threaded sleeve.

Preferably, the connecting part comprises a connecting disc, the clamping jaws are hinged along the circumferential direction at intervals, and an outer sleeve sleeved and fixed on the inner sleeve is detachably assembled and fastened in the center of the inner side of the connecting disc.

The beneficial effect of this application is: the gear puller is provided with the inner sleeve which is limited by the driving shaft ring sleeve of the gear, so that the axial alignment of the driving screw and the driving shaft is realized, in the rotating process of the driving screw, the inner sleeve is used at the center of the outer end of the driving shaft and drives the driving shaft to be separated from the gear along the axial direction, the problem that the driving screw is inclined with the driving shaft due to overlarge axial advancing force is avoided, the limitation of the inner sleeve is further realized, the effectiveness of applying axial disassembling force to the driving screw is realized, the aim of labor-saving disassembly is finally fulfilled, the disassembling time is shortened, the operating efficiency is improved, and the puller is prevented from being damaged by inclined external force and safe operation.

Drawings

Fig. 1 is an exploded view of a portion of the extractor structure of the present application.

Fig. 2 is an assembly view of fig. 1 of the present application.

Fig. 3 is a schematic view of the overall structure of the extractor of the present application.

Fig. 4 is a view showing an initial state of gear extraction according to the present application.

FIG. 5 is a schematic view of the present application showing the gear extraction and disengagement from the drive shaft.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present application, the following further describes the technical solution of the present application with reference to the drawings and the embodiments.

Referring to fig. 1-5, a novel locomotive main engine oil pump gear extractor is shown, said extractor comprising: and a clamping member which is in close contact with the axial inner side surface of the gear 10 and applies an external force to the gear 10 in the axial direction of removal thereof. The specific structure is as shown in fig. 3, the clamping part is a clamping claw 1 with an L-shaped hook structure, which is arranged along the circumferential direction at intervals and synchronously contacted with the axial inner side surface of the gear 10. The clamping jaws 1 arranged at intervals in the circumferential direction can be uniformly contacted with the inner side surface of the gear 10 and bear force, and the plurality of clamping jaws 1 apply acting force to the gear 10 outwards to enable the gear 10 to be separated from the driving shaft 20.

The positioning component is limited by an outer end ring sleeve of the driving shaft 20 of the gear 10, the specific structure is shown in fig. 1-2, the positioning component is an inner sleeve 2 which is sleeved on the outer end peripheral surface of the driving shaft 20 by a gap ring sleeve with a certain width and is spliced in half, and the inner sleeve 2 and the outer end peripheral surface ring sleeve of the driving shaft 20 are limited, so that when the gear 10 and the driving shaft 20 are disassembled along the axial direction, the deviation of the disassembling external force applied to the driving shaft 20 can be avoided, and the effectiveness of the applied disassembling external force can be ensured.

The labor-saving component drives the positioning component to apply external force to the outer end part of the driving shaft 20, the specific structure is shown in fig. 1-2, the labor-saving component comprises a threaded sleeve 3 which is sleeved in the inner sleeve 2 in a limiting manner, specifically, a positioning pin 7 is arranged on the side walls of the inner sleeve 2 and the threaded sleeve 3 in a penetrating manner together to realize the assembly and the limiting of the inner sleeve 2 and the threaded sleeve 3, and a driving screw rod 4 tightly propped against the center of the outer end of the driving shaft 20 penetrates through the threads in the threaded sleeve 3. In the process of driving the driving screw 4 to rotate, the driving screw 4 acts on the center of the outer end of the driving shaft 20 and drives the driving shaft 20 to be separated from the gear 10 along the axial direction, the inner sleeve 2 limits the ring sleeve of the driving shaft 20, so that the axial alignment of the driving screw 4 and the driving shaft 20 is realized, the problem that the driving screw 4 deflects from the driving shaft 20 due to overlarge axial advancing force is avoided, and the effectiveness of applying the axial disassembling force to the driving screw 4 is realized through the limit of the inner sleeve 2.

And the connecting component is used for connecting the clamping component and the labor-saving component and enabling the labor-saving component to be in contact with the positioning component. The connecting component comprises a connecting disc 5 which is used for hinging the clamping jaw 1 along the circumferential direction at intervals, and an outer sleeve 6 which is sleeved and fixed on the inner sleeve 2 is detachably assembled and fastened at the center of the inner side of the connecting disc 5, as shown in figure 3. The outer sleeve 6 is sleeved (preferably in threaded connection) on the inner sleeve 2 which is spliced in half, so that the integral sleeve structure of the inner sleeve 2 is realized, and the outer sleeve 6 is limited relative to the inner sleeve 2 through the positioning pin. Preferably, the centers of the outer sleeve 6 and the connecting disc 5 are in a conical surface contact structure, the center of the inner side of the connecting disc 5 is provided with a conical through hole (not shown in the figure), and the outer sleeve 6 and the inner sleeve 2 are in conical fit from the inner side of the connecting disc 5 to realize one-way limiting of the outer sleeve 6, the inner sleeve 2 and the threaded sleeve 3. The extractor of the present application is shown in its entirety in assembled view in fig. 3.

The principle of this application is: as shown in fig. 1-3, firstly, the threaded sleeve 3 is positioned and assembled in the inner sleeve 2 through the positioning pin, the outer sleeve 6 is sleeved on the outer wall of the inner sleeve 2 with a half-and-half structure in a threaded manner, the inner sleeve 2 forms an integral sleeve structure, and then the integral structure is in one-way taper fit from the inner center of the connecting disc 5; then, a plurality of clamping jaws 1 are clamped on the axial inner side surface of the gear 10 at intervals, meanwhile, the end part gap of the inner sleeve 2 is sleeved on the outer end part of the driving shaft 20 to realize radial limiting (a structure shown in fig. 4), finally, a driving screw 4 is threaded in the threaded sleeve 3 and tightly propped against the end part center of the driving shaft 20 in the inner sleeve 2, and then the assembly is completed.

During the disassembly operation, the wrench is used for driving the outer end of the driving screw rod 4, or the horizontal driving rod 8 is penetrated to drive the driving screw rod 4 to rotate, so that the driving screw rod 4 is propped against the outer end of the driving shaft 20 to be gradually separated from the gear 10 for disassembly, when the driving shaft 20 is about to be separated from the gear 10, the driving screw rod 4 extends out of the inner sleeve 2 (as shown in fig. 5), and is continuously propped against the driving shaft 20 to realize the complete separation from the gear 10, thereby avoiding the defect that the outer end of the driving shaft 20 is sleeved in the inner sleeve 2 all the time, and the inner sleeve 2 can be contacted with the gear 10, namely the gear 10 and the driving shaft 10 cannot be completely disassembled and separated.

The foregoing shows and describes the general principles, essential features, and advantages of the application. Without departing from the spirit and scope of this application, there are also various changes and modifications that fall within the scope of the claimed application.

Claims

1. The utility model provides a novel locomotive main engine oil pump gear extractor which characterized in that, extractor includes: clamping a component: the gear (10) is in close contact with the axial inner side surface of the gear (10), and external force towards the axial disassembly direction of the gear (10) is applied to the gear;

a positioning member: the outer end of the gear (10) is sleeved with a ring for limiting with the outer end of a driving shaft (20);

labor-saving part: driving the positioning member to apply an external force to the outer end of the drive shaft (20);

2. The novel locomotive main oil pump gear puller according to claim 1, wherein: the clamping component is a clamping claw (1) of an L-shaped hook body structure, and the clamping claw is arranged at intervals along the circumferential direction and is in synchronous contact with the axial inner side face of the gear (10).

3. The novel locomotive main oil pump gear puller according to claim 2, wherein: the positioning component is an inner sleeve (2) which is sleeved on the peripheral surface of the outer end of the driving shaft (20) by a gap ring with a certain width and is spliced in half and half.

4. The novel locomotive main oil pump gear puller according to claim 3, wherein: the labor-saving component comprises a threaded sleeve (3) which is sleeved in the inner sleeve (2) in a limiting way, and a driving screw (4) which is tightly propped against the center of the outer end of the driving shaft (20) penetrates through the threaded sleeve (3) in a threaded way.

5. The novel locomotive main engine oil pump gear puller according to claim 4, characterized in that: the connecting component comprises a connecting disc (5) which is hinged to the clamping jaw (1) along the circumferential direction at intervals, and an outer sleeve (6) which is sleeved and fixed on the inner sleeve (2) is detachably assembled and fastened in the center of the inner side of the connecting disc (5).