A parts drawing tool, reducer bearing cover and assembly

Abstract

The present application provides a part drawing tool, a reducer bearing cover and an assembly; the part drawing tool comprises: a fixed support structure, on which a driving structure is arranged; a driving structure, the bottom of which passes through the fixed support structure and is drivingly connected to a receiving structure; the receiving structure comprises a receiving plate and a connecting structure, wherein the receiving plate is connected to the driving structure, and the bottom of the connecting structure passes through the receiving plate and is fixedly connected to the reducer bearing cover. The disassembly process of the utility model will not damage the positioning pins on the reducer bearing cover and the reducer housing, and the overall structure is simple and durable.

Description

Technical Field

[0001] The present application relates to the field of mechanical tooling, and in particular, to a parts drawing tool, a reducer bearing cover and an assembly. Background Art

[0002] At present, there are two main ways to preload the tapered bearings at both ends of the differential in the main reducer: the first is to tighten the outer ring of the bearing by screwing the bolts connected to the threaded connection with the reducer housing; the second is to install adjustment gaskets of different thicknesses between the reducer housing and the outer ring of the bearing and tighten the outer ring of the bearing by bolting. For the second preloading method, since the reducer bearing cover needs to be installed and disassembled many times during the assembly process, the adjustment gaskets need to be replaced in order to adjust the gear clearance and meshing imprint of the main reducer; when disassembling the differential and driven gear assembly, the reducer bearing cover needs to be removed first, and then the differential and driven gear assembly needs to be placed in the reducer housing. Since there are two interference fit positioning pins between the reducer bearing cover and the reducer housing, and there are no disassembly points around the reducer bearing cover, disassembly is more difficult. The existing method is to use tools such as copper rods to pry from both sides of the reducer bearing cover at the same time, but the positioning pins and pin holes will be bent and deformed during disassembly, affecting the subsequent normal assembly, and the reducer housing is easily scratched during prying, affecting product quality. In order to ensure the process requirements for the installation of the reducer assembly and reduce unnecessary damage caused by the disassembly of the reducer bearing cover; the patent of the present invention provides a part drawing tool that can ensure that the reducer bearing cover is disassembled without damage, and the disassembly process is simple and efficient. Utility Model Content

[0003] The purpose of this application is to provide a parts drawing tool, a reducer bearing cover and an assembly, which overcomes the technical problems existing in the background technology. The specific scheme is as follows:

[0004] A part drawing tool, comprising:

[0005] A fixed support structure, wherein a driving structure is arranged on the fixed support structure;

[0006] The driving structure has a bottom portion that passes through the fixed supporting structure and is drivingly connected to the receiving structure;

[0007] The receiving structure comprises a receiving plate and a connecting structure, wherein the receiving plate is connected to the driving structure, and the bottom of the connecting structure passes through the receiving plate and is fixedly connected to the reducer bearing cover.

[0008] Furthermore, the fixed support structure includes a load-bearing plate and support plates arranged on both sides of the bottom of the load-bearing plate; the middle of the support plate is connected to a driving structure, and the bottoms of the two support plates can fit with the end surface of the reducer housing.

[0009] Furthermore, a protective structure is provided at the bottom of the fixed support structure, and the protective structure includes a protective layer, and the protective layer is provided on the lower end surfaces of the two support plates.

[0010] Furthermore, a positioning structure is provided in the middle of the support plate; the positioning structure includes at least two positioning bolts, wherein at least two positioning bolts are evenly arranged on both sides of the driving structure, and each of the positioning bolts passes through a through hole on the support plate and is screwed and fixed with a positioning screw hole on the receiving plate.

[0011] Furthermore, the driving structure includes:

[0012] A driving rod passes through the load-bearing plate and is threadedly connected to the receiving plate; a driving member is arranged at the position where the upper part of the driving rod protrudes from the load-bearing plate, and a hook is arranged at the top of the driving rod.

[0013] Furthermore, at least two connecting through holes are provided on the docking plate, wherein the connecting through holes correspond to the positions of the threaded holes on the reducer bearing cover; the connecting structure includes connecting screws having the same number as the connecting through holes on the docking plate, and each of the connecting screws passes through the connecting through hole and can be screwed and fixed to the threaded hole on the reducer bearing cover.

[0014] Furthermore, a plurality of weight-reducing holes are provided on the receiving plate.

[0015] In the second aspect, the new model provides a reducer bearing cover, the top of which is provided with a threaded hole which is fixed by the pulling tooling, the top of which is provided with a strip-shaped weight-reducing groove along the length direction, and the bottom is provided with a positioning pin hole which is inserted into the positioning pin on the reducer housing.

[0016] In a third aspect, the present invention provides a reducer assembly, including the reducer bearing cover.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a parts drawing tool, which can remove the reducer bearing cover connected to the receiving structure from the reducer housing without damaging the reducer bearing cover through the cooperation of a fixed support knot, a driving structure and a receiving structure, and the disassembly process will not damage the reducer bearing cover and the locating pins on the reducer housing, thereby saving costs. In addition, the parts drawing tool of the present application has a simple overall structure, strong durability, is easy to manufacture and assemble, and is convenient for workers to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural schematic diagram of the part drawing tooling;

[0020] Figure 2 This is a schematic diagram of the overall structure of the part drawing tool from another angle;

[0021] Figure 3 This is a schematic diagram of the internal structure of the part drawing tool;

[0022] Figure 4 and Figure 5 Schematic diagram of the structure of the reducer bearing cover from different angles.

[0023] In the figure:

[0024] 1. Fixed support structure; 11. Load-bearing plate; 12. Support plate;

[0025] 2. driving structure; 21. driving rod; 22. driving member; 23. hook;

[0026] 3. Undertaking structure;

[0027] 30. Adapter plate; 301. Connecting through hole;

[0028] 31. Connecting structure; 311. Connecting screw;

[0029] 4. Weight reduction holes;

[0030] 5. Positioning structure; 51. Positioning bolt;

[0031] 6. Reducer bearing cover; 61. Strip-shaped weight-reducing groove; 62. Positioning pin hole; 63. Threaded hole;

[0032] 7. Protective layer. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of this application clearer, the following will be combined with the attached Figure 1-5 The present application is further described in detail. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] It should be understood that, although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0035] A part drawing tool comprises a fixed support structure 1, a driving structure 2 and a receiving structure 3; the driving structure 2 is arranged on the fixed support structure 1, the bottom of the driving structure 2 passes through the fixed support structure 1 and is drivingly connected to the receiving structure 3, the receiving structure 3 is connected to a reducer bearing cover 6, the receiving structure 3 comprises a receiving plate 30 and a connecting structure 31, wherein the receiving plate 30 is connected to the driving structure 2, and the connecting structure 31 passes through the receiving plate 30 and is fixedly connected to the reducer bearing cover 6.

[0036] The present invention connects the fixed support structure 1 with the reducer housing, and under the drive of the driving structure 2, drives the receiving structure 3 to move upward along the vertical direction of the fixed support structure 1, and under the drive of the receiving structure 3, the reducer bearing cover 6 is separated from the reducer housing. In this way, the reducer bearing cover 6 can be quickly disassembled from the reducer housing, and the reducer bearing cover 6 and the positioning pins on the reducer housing will not be damaged during the disassembly process. The operation is simple, efficient, and cost-saving.

[0037] Furthermore, the fixed support structure 1 includes a load-bearing plate 11 and support plates 12 arranged on both sides of the bottom of the load-bearing plate 11; the load-bearing plate 11 can be arranged as an integrated structure with the support plates 12 on both sides, which is convenient for machining, and the bottoms of the two support plates 12 can be fitted with the end faces of the reducer housing. By using the fitting points of the two support plates 12 and the end faces of the reducer housing as force points, the reducer bearing cover 6 can be easily detached from the reducer housing under the drive of the driving structure 2.

[0038] Furthermore, the bottom surfaces of the two support plates 12 are planar structures. The advantage of this design is that it prevents the stress-bearing surface of the reducer housing from being deformed due to uneven stress, thereby affecting product quality.

[0039] In order to further prevent the stress-bearing surface of the reducer housing from deforming, a protective structure is provided at the bottom of the fixed support structure 1 in this embodiment. The protective structure includes a protective layer 7, and the protective layer 7 is provided on the lower end surfaces of the two support plates 12; the protective layer 7 is a rubber block.

[0040] Optionally, a positioning structure 5 is provided in the middle of the support plate 12; the positioning structure 5 includes two positioning bolts 51, wherein the two positioning bolts 51 are evenly arranged on both sides of the driving structure 2, and each of the positioning bolts 51 passes through a through hole on the support plate 12 and is screwed and fixed with a positioning screw hole on the receiving plate 30; it can be understood that in this embodiment, by arranging the positioning structure 5, the connection structure 31 is prevented from being deflected under the action of the driving structure 2, thereby affecting the disassembly of the reducer bearing cover 6, and at the same time, it is also prevented from being torn at the connection between the connection structure 31 and the reducer bearing cover 6.

[0041] Optionally, the driving structure 2 includes a driving rod 21, a driving member 22 and a hook 23; wherein the driving rod 21 passes through the load-bearing plate 11 and is threadedly connected to the receiving plate 30, wherein the driving rod 21 and the load-bearing plate 11 are clearance-fitted; the driving member 22 is welded and fixed to the portion of the upper part of the driving rod 21 extending out of the load-bearing plate 11, and a hook 23 is provided on the top of the driving rod 21; a protective gasket is provided between the driving member 22 and the load-bearing plate 11; in this embodiment, the driving member 22 is a driving bolt, and the driving bolt is welded and fixed to the driving rod 21; the hook 23 is a hook ring, which is used to cooperate with the overhead crane to move the disassembled reducer bearing cover 6 and the pulling tooling.

[0042] In another embodiment, the driving member 22 is a reinforcing rod, which is vertically welded to the driving rod 21. The driving rod 21 is driven to rotate under the action of the reinforcing rod to realize the disassembly of the reducer bearing cover 6.

[0043] Optionally, at least two connecting through holes 301 are provided on the socket plate 30, wherein the connecting through holes 301 correspond to the positions of the threaded holes 63 on the reducer bearing cover 6; the connecting structure 31 includes connecting screws 311 having the same number as the connecting through holes 301 on the socket plate 30, and the bottom of each connecting screw 311 passes through the connecting through hole 301 and is screwed and fixed to the threaded hole 63 on the reducer bearing cover 6; preferably, four connecting through holes 301 are provided on the socket plate 30, and correspondingly, the number of the connecting screws 311 and the threaded holes 63 on the reducer bearing cover 6 is the same as the connecting through holes 301, and four are provided.

[0044] It should be noted that two reducer bearing covers 6 are provided at the upper end of the reducer housing, wherein threaded holes 63 for matching and fixing with the connecting screw 311 are provided on both sides of the top of each reducer bearing cover 6, or a threaded hole 63 for matching and fixing with the connecting screw 311 is provided in the middle position of the top of each reducer bearing cover 6; in this embodiment, threaded holes 63 are provided on both sides of the top of the reducer bearing cover 6.

[0045] When in use, the four connecting screws 311 are respectively passed through the connecting through holes 301 and screwed into the threaded holes 63 of the reducer bearing cover 6, so as to realize the connection and fixation between the connecting structure 31 and the reducer bearing cover 6. The receiving plate 30 drives the four connecting screws 311 to move upward under the action of the driving rod 21, thereby completing the disassembly of the reducer bearing cover 6.

[0046] In order to reduce material costs, a plurality of weight-reducing holes 4 are provided on the peripheral side of the receiving plate 30 . In this embodiment, four weight-reducing holes 4 are provided on the receiving plate 30 , which are respectively located in the middle of the front, rear, left and right sides of the receiving plate 30 .

[0047] Working principle: first, hang the overhead crane with the hook ring, move the pulling tool to the top of the reducer housing, control the overhead crane to move the connecting structure 31 to the corresponding position of the threaded hole 63 on the reducer bearing cover 6, and lower the pulling tool to place the fixed support structure 1 on the reducer bearing cover 6, and use a wrench to screw the connecting screw 311 into the threaded hole 63 on the reducer bearing cover 6 to achieve connection and fixation, and then use a wrench to screw the driving bolt to synchronously drive the receiving plate 30 and the reducer bearing cover 6 to move up to complete the disassembly.

[0048] On the other hand, the present invention provides a reducer bearing cover, wherein the top of the reducer bearing cover 6 is provided with a threaded hole 63 which is installed and fixed by the above-mentioned drawing tool; the top of the reducer bearing cover 6 is provided with a strip-shaped weight-reducing groove 61 along the length direction, and the bottom is provided with a positioning pin hole 62 which is inserted into the positioning pin on the reducer housing.

[0049] On the other hand, the present invention provides a reducer assembly, including the reducer bearing cover 6.

[0050] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

Claims

1. A part drawing tool, characterized in that: include: A fixed support structure (1), wherein a driving structure (2) is arranged on the fixed support structure (1); The driving structure (2) has a bottom portion that passes through the fixed supporting structure (1) and is drivingly connected to the receiving structure (3); The receiving structure (3) comprises a receiving plate (30) and a connecting structure (31), wherein the receiving plate (30) is connected to the driving structure (2), and the bottom of the connecting structure (31) passes through the receiving plate (30) and is fixedly connected to the reducer bearing cover (6).

2. The part drawing tool according to claim 1, characterized in that: The fixed support structure (1) comprises a load-bearing plate (11) and support plates (12) arranged on both sides of the bottom of the load-bearing plate (11); the middle of the support plate (12) is connected to the driving structure (2), and the bottoms of the two support plates (12) can be fitted with the end surface of the reducer housing.

3. The part drawing tool according to claim 2, characterized in that: A protective structure is provided at the bottom of the fixed support structure (1), the protective structure comprising a protective layer (7), and the protective layer (7) is provided on the lower end surfaces of the two support plates (12).

4. The part drawing tool according to claim 2, characterized in that: A positioning structure (5) is provided in the middle of the support plate (12); the positioning structure (5) comprises at least two positioning bolts (51), wherein at least two positioning bolts (51) are evenly arranged on both sides of the driving structure (2), and each positioning bolt (51) passes through a through hole on the support plate (12) and is screwed and fixed to a positioning screw hole on the receiving plate (30).

5. The part drawing tool according to claim 3, characterized in that: The driving structure (2) comprises: A driving rod (21), the driving rod (21) passing through the bearing plate (11) and being threadedly connected to the receiving plate (30); a driving member (22) is provided at the portion of the upper portion of the driving rod (21) extending out of the bearing plate (11), and a hook portion (23) is provided at the top of the driving rod (21).

6. The part drawing tool according to claim 5, characterized in that: At least two connecting through holes (301) are provided on the receiving plate (30), wherein the connecting through holes (301) correspond to the positions of the threaded holes (63) on the reducer bearing cover (6); the connecting structure (31) comprises connecting screws (311) having the same number as the connecting through holes (301) on the receiving plate (30), and each connecting screw (311) passes through the connecting through hole (301) and can be screwed and fixed to the threaded hole (63) on the reducer bearing cover (6).

7. The part drawing tool according to claim 6, characterized in that: The receiving plate (30) is provided with a plurality of weight-reducing holes (4).

8. A reducer bearing cover, characterized in that: The top of the reducer bearing cover (6) is provided with a threaded hole (63) which is installed and fixed by the drawing tool described in any one of claims 1 to 7, and the top of the reducer bearing cover (6) is provided with a strip-shaped weight-reducing groove (61) along the length direction, and the bottom is provided with a positioning pin hole (62) which is inserted into the positioning pin on the reducer housing.

9. A reducer assembly, characterized in that: It comprises the reducer bearing cover (6) as claimed in claim 8.

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