CN210968724U

CN210968724U - Disassembling tool for maintaining engine cylinder cover

Info

Publication number: CN210968724U
Application number: CN201922135287.XU
Authority: CN
Inventors: 王世勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-10
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a disassembly and assembly tool for maintaining an engine cylinder cover, which comprises a main body component, wherein the main body component comprises a nut, a threaded part, a drawing die, a connecting part and a mandrel, and three drawing dies which are arranged at equal intervals are sequentially sleeved on the outer side wall of the mandrel; this assembly and disassembly tools can be used for dismantling old camshaft bush, also can be used for installing new camshaft bush, the cylinder cap that will dismantle is put on firm platform, penetrate the through-hole of dabber from the clamp plate to the dabber, embolia corresponding on the dabber to the drawing head of the camshaft bush that needs to dismantle, the drawing head pushes into in the camshaft bush, fasten the epaxial nut of dabber with the spanner, and can easily pull out the cylinder cap with the bush, so adjust the position on the dabber repeatedly, until pulling out all bushes totally, the process of installation camshaft bush is the same with this process, through the setting of this extracting tool, other motorcycle types also can refer to this instrument, it can become one set of universal tool to suitably adjust its drawing handle length and drawing head size.

Description

Disassembling tool for maintaining engine cylinder cover

Technical Field

The utility model relates to an engine cylinder lid maintenance technical field specifically is an assembly and disassembly tools is used in engine cylinder lid maintenance.

Background

A Terex TR50 dump truck is a 50T-grade mining dump truck, the engine is a pure-entry American Congming engine, and the comprehensive three-protection maintenance stage is achieved at present, a vehicle crank bush, a connecting rod bush and a cam bush which are frequently used individually need to be assembled with standard new bushes, particularly, the gap between a camshaft and a cam bush sleeve reaches more than 0.16mm and exceeds the specified range of 0.094-0.146, a new bushing needs to be replaced under the condition, otherwise, the oil pressure is greatly reduced, the requirement for replacing the new cam bush is very strict, the roundness tolerance after the cam bush is installed in a base hole is 0-0.04mm, the taper error is 0-0.04mm, the interference between the camshaft bushing and the base hole is within the range of 0.178-0.102mm, the camshaft bushing cannot be directly hit by a hammer or a punch and the like, the bushing is deformed when the camshaft bushing is knocked, the specified requirements cannot be met, and the corresponding oil holes need to be aligned during assembly, so that deviation cannot occur, and the original base hole cannot be damaged in the process of disassembling the old tile. In the early stage, no special dismounting tool is provided, or a camshaft bushing is not replaced, and the oil pressure after large repair cannot meet the technical requirement, so that the dismounting tool for repairing the engine cylinder cover is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assembly and disassembly tools is used in engine cylinder lid maintenance to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a kind of engine cylinder cover repairs and uses the assembly and disassembly tools, comprising:

the main body assembly comprises a nut, a threaded part, drawing dies, a connecting part and a mandrel, wherein the outer side wall of the mandrel is sequentially sleeved with three drawing dies which are arranged at equal intervals, and the connecting part is welded at one end of the mandrel;

the disassembly component, the disassembly component includes clamp plate, spacer, leads to groove, camshaft bush, draw-in head, draw-in groove, first semicircle card arc and second semicircle card arc, through-hole, one side welding of clamp plate has the spacer, one side fixedly connected with draw-in head of dabber is kept away from to the camshaft bush, the draw-in groove has been seted up to one side that the camshaft bush was kept away from to the draw-in head, the one end of draw-in head is provided with first semicircle card arc and second semicircle card arc respectively, first semicircle card arc and second semicircle card arc run through in the inside of draw-in groove, the lateral wall of first semicircle card arc and second semicircle card arc is connected with the inside wall laminating of draw-in groove.

As further preferable in the present technical solution: the through hole that matches with cam shaft bushing is seted up to the inside of spacer, the cam shaft bushing runs through in the inside of logical groove.

As further preferable in the present technical solution: the length of drawing mould is 15cm, the interval between two adjacent drawing moulds of dabber lateral wall is 10 mm.

As further preferable in the present technical solution: one end of the mandrel, which is far away from the camshaft bush, is provided with a threaded part, and one end of the mandrel, which is far away from the camshaft bush, is connected with a nut through the threaded part and a thread.

As further preferable in the present technical solution: the clamp plate is kept away from the one end of camshaft bush and is seted up the through-hole with connecting portion adaptation, the width of through-hole and the width of connecting portion are 32 mm.

As further preferable in the present technical solution: the number of the disassembling assemblies is two.

Compared with the prior art, the beneficial effects of the utility model are that: this assembly and disassembly tools can be used for dismantling old camshaft bush, also can be used for installing new camshaft bush, the cylinder cap that will dismantle is put on firm platform, penetrate the through-hole of dabber from the clamp plate to the dabber, embolia corresponding on the dabber to the drawing head of the camshaft bush that needs to dismantle, the drawing head pushes into in the camshaft bush, fasten the epaxial nut of dabber with the spanner, and can easily pull out the cylinder cap with the bush, so adjust the position on the dabber repeatedly, until pulling out all bushes totally, the process of installation camshaft bush is the same with this process, through the setting of this extracting tool, other motorcycle types also can refer to this instrument, it can become one set of universal tool to suitably adjust its drawing handle length and drawing head size.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the spacer according to the present invention;

fig. 3 is a schematic view of the internal structure of the utility model.

In the figure: 10. a body assembly; 11. a nut; 12. a threaded portion; 13. drawing; 14. a connecting portion; 15. a mandrel; 20. disassembling the assembly; 21. pressing a plate; 22. a spacer sleeve; 23. a through groove; 24. a camshaft sleeve; 25. pulling a touch head; 26. a card slot; 27. a first semicircular clamping arc; 28. a second semicircular clamping arc; 29. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides a technical solution: a kind of engine cylinder cover repairs and uses the assembly and disassembly tools, comprising:

the main body assembly 10 comprises a nut 11, a threaded part 12, drawing dies 13, a connecting part 14 and a mandrel 15, wherein the outer side wall of the mandrel 15 is sequentially sleeved with the three drawing dies 13 which are arranged at equal intervals, and the connecting part 14 is welded at one end of the mandrel 15;

detaching assembly 20, detaching assembly 20 includes clamp plate 21, spacer 22, logical groove 23, camshaft bush 24, the pull head 25, draw-in groove 26, first semicircle screens arc 27 and second semicircle screens arc 28, through-hole 29, the welding of one side of clamp plate 21 has spacer 22, one side fixedly connected with pull head 25 that dabber 15 was kept away from to camshaft bush 24, draw-in groove 26 has been seted up to one side that camshaft bush 24 was kept away from to pull head 25, the one end of pull head 25 is provided with first semicircle screens arc 27 and second semicircle screens arc 28 respectively, first semicircle screens arc 27 and second semicircle screens arc 28 run through in the inside of draw-in groove 26, the lateral wall of first semicircle screens arc 27 and second semicircle screens arc 28 is connected with the inside wall laminating of draw-in groove 26.

In this embodiment, specifically: through the above arrangement, the pull-touch head 25 of the camshaft bush 24 to be detached is conveniently sleeved into the corresponding mandrel 15.

In this embodiment, specifically: the length of the drawing die 13 is 15cm, and the distance between two adjacent drawing dies 13 on the outer side wall of the mandrel 15 is 10 mm.

In this embodiment, specifically: the one end that camshaft bush 24 was kept away from to dabber 15 is provided with screw thread portion 12, the one end that camshaft bush 24 was kept away from to dabber 15 has nut 11 through 12 threaded connection of screw thread portion, through above setting, embolia corresponding dabber 15 to the drawing head 25 of camshaft bush 24 that needs dismantle, then go into draw-in groove 26 with first semicircle card arc 27 and second semicircle card arc 28 card, in drawing head 25 pushed into camshaft bush 24, fasten the nut 11 on the dabber 15 with the spanner, be convenient for pull out the cylinder cap with the bush easily.

In this embodiment, specifically: one end of the pressure plate 21, which is far away from the camshaft bush 24, is provided with a through hole 29 matched with the connecting part 14, and the width of the through hole 29 and the width of the connecting part 14 are both 32mm, so that the mandrel 15 is conveniently connected with the pressure plate 21 and the spacer 22.

In this embodiment, specifically: the quantity of the disassembling component 20 is provided with two, the diameters of the two disassembling components 20 are different, when the device is used, a proper pull-touch head 25, a pressing plate 21 and a spacer 22 are selected according to the diameter of a camshaft lining 24, and the device can be disassembled and maintained through simple assembly.

The working principle or the structure principle is that when in use, the dismounting tool can be used for dismounting an old camshaft bush 24 and can also be used for mounting a new camshaft bush 24, a cylinder cover to be dismounted is placed on a stable platform, a tool pressing plate 21 is fixed on two bolt holes on the end surface of the cylinder cover according to the dismounting sequence, a mandrel 15 is penetrated through a through hole 29 of the pressing plate 21, a pull head 25 of the camshaft bush 24 to be dismounted is sleeved on the corresponding mandrel 15 from the other end of the mandrel 15, then a first semicircular clamping arc 27 and a second semicircular clamping arc 28 are clamped in a clamping groove 26, the pull head 25 is pushed into the camshaft bush 24, a nut 11 on the mandrel 15 is fastened by a spanner, the bush can be easily pulled out of the cylinder cover, the position on the mandrel 15 is repeatedly adjusted in such a way until all bushes are pulled out, the procedure for mounting the camshaft bush 24 is the same as the procedure, through the setting of this extracting tool, other motorcycle types can also refer to this instrument, and its pull rod length and the size of drawing head 25 of suitable adjustment can become a set of universal tool.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an assembly and disassembly tools is used in engine cylinder lid maintenance which characterized in that includes:

the main body component (10) comprises a nut (11), a threaded part (12), a drawing die (13), a connecting part (14) and a mandrel (15), wherein the outer side wall of the mandrel (15) is sequentially sleeved with three drawing dies (13) which are arranged at equal intervals, and one end of the mandrel (15) is welded with the connecting part (14);

a disassembling component (20), wherein the disassembling component (20) comprises a pressure plate (21), a spacer bush (22), a through groove (23), a camshaft bush (24), a pull-touch head (25), a clamping groove (26), a first semicircular clamping arc (27), a second semicircular clamping arc (28) and a through hole (29), a spacer bush (22) is welded on one side of the pressure plate (21), a pull-touch head (25) is fixedly connected on one side of the camshaft bush (24) far away from the mandrel (15), a clamping groove (26) is arranged on one side of the pull-touch head (25) far away from the camshaft bush (24), one end of the pull-touch head (25) is respectively provided with a first semicircular clamping arc (27) and a second semicircular clamping arc (28), the first semicircular clamping arc (27) and the second semicircular clamping arc (28) penetrate through the clamping groove (26), the outer side walls of the first semicircular clamping arc (27) and the second semicircular clamping arc (28) are attached to and connected with the inner side wall of the clamping groove (26).

2. The disassembly and assembly tool for repairing the engine cylinder cover according to claim 1, wherein: a through hole (29) matched with the camshaft lining (24) is formed in the spacer bush (22), and the camshaft lining (24) penetrates through the through groove (23).

3. The disassembly and assembly tool for repairing the engine cylinder cover according to claim 1, wherein: the length of the drawing die (13) is 15cm, and the distance between two adjacent drawing dies (13) on the outer side wall of the mandrel (15) is 10 mm.

4. The disassembly and assembly tool for repairing the engine cylinder cover according to claim 1, wherein: one end, far away from camshaft bush (24), of mandrel (15) is provided with threaded portion (12), and one end, far away from camshaft bush (24), of mandrel (15) is connected with nut (11) through threaded portion (12) in a threaded mode.

5. The disassembly and assembly tool for repairing the engine cylinder cover according to claim 1, wherein: one end, far away from the camshaft bush (24), of the pressing plate (21) is provided with a through hole (29) matched with the connecting portion (14), and the width of the through hole (29) and the width of the connecting portion (14) are both 32 mm.

6. The disassembly and assembly tool for repairing the engine cylinder cover according to claim 1, wherein: the number of the disassembling assemblies (20) is two.