Portable assembly tool for swash plate type hydraulic plunger pump crescent bearing assembly

Abstract

The utility model discloses a portable assembling tool for a crescent bearing assembly of a swash plate type hydraulic plunger pump, and relates to the technical field of swash plate type hydraulic plunger pump assembling. The portable assembling tool comprises a tool rod, a first clamping rod, a second clamping rod and an elastic connecting piece, the first end of the tool rod is hinged to the first end of the first clamping rod, and the second end of the first clamping rod is hinged to the second end of the second clamping rod; the second end of the tool rod is hinged to the first end of the second clamping rod, and the elastic connecting piece is arranged between the first clamping rod and the second clamping rod so that a clamping opening can be formed between the first clamping rod and the second clamping rod. When the crescent bearing body is assembled between the swash plate and the crescent bearing runway, the second end of the first clamping rod and the second end of the second clamping rod can be clamped to the two sides of the crescent bearing body respectively, and the second end of the first clamping rod can be clamped between the first side of the crescent bearing body and the crescent bearing runway. And the second end of the second clamping rod can be clamped between the second side of the crescent bearing body and the crescent bearing runway, so that the crescent bearing body is fixed between the swash plate and the crescent bearing runway.

Description

Technical Field

[0001] The utility model relates to the technical field of assembling a swash plate type hydraulic plunger pump, in particular to a portable assembly tool for a crescent bearing component of a swash plate type hydraulic plunger pump. Background Art

[0002] The swash plate assembly is a crucial component of a swash plate hydraulic piston pump (hereinafter referred to as the hydraulic pump) that achieves variable displacement. The swash plate assembly's primary functions in a hydraulic pump are: first, the swash plate's inclination controls the pump's maximum displacement; second, its movement enables the pump's oil intake and discharge; and third, it provides support for the pump's core components. Therefore, proper assembly of the swash plate assembly is a crucial step in the hydraulic pump assembly process, particularly the crescent bearing assembly within the swash plate assembly. Failure to properly assemble the assembly can lead to increased pump leakage, scratches on the cylinder block and valve plate, and potentially incalculable damage.

[0003] The swash plate assembly mainly includes a swash plate, a crescent bearing assembly, a variable slider, etc. Among them, the crescent bearing assembly includes a crescent bearing body and a crescent bearing runway. The swash plate is installed on the hydraulic pump housing with the help of the crescent bearing assembly. During assembly, the crescent bearing runway is first fixedly installed on the housing runway, and then the swash plate assembly (other components except the crescent bearing runway), the variable piston, etc. are assembled on the housing runway. However, since there is no fixing device between the crescent bearing body and the swash plate (a gap is formed between the swash plate and the crescent bearing runway, and the crescent bearing body is movably installed in the gap), this results in the process of installing the swash plate assembly. On the one hand, it is necessary to ensure that the crescent bearing body does not fall off, and on the other hand, it is necessary to ensure that the crescent bearing body is assembled to the appropriate position on the housing runway.

[0004] In the above situation, during the actual assembly of the hydraulic pump swash plate assembly, a large amount of grease is usually used to adhere between the crescent bearing body and the swash plate. This method has disadvantages: First, the main function of grease is lubrication, and its adhesion strength is not high, making it difficult to ensure that the crescent bearing body will not fall off during the assembly process; second, when using grease for assembly, in order to ensure that the crescent bearing body is assembled on the swash plate and does not fall off, it is necessary to ensure the adhesion strength between the two. Therefore, a large amount of grease is required during the assembly process. The grease used in this process is disposable, resulting in a large amount of grease loss and affecting the cleanliness of the hydraulic pump mounting platform. If the use of grease is reduced, the adhesion strength between the crescent bearing body and the swash plate cannot be guaranteed.

[0005] It can be seen that how to provide an assembly tool for the crescent bearing assembly of the hydraulic pump, which can not only ensure the stability of the assembly of the crescent bearing assembly and the swash plate, but also avoid the use of a large amount of grease during the assembly process, is a problem that needs to be solved urgently. Utility Model Content

[0006] The purpose of the utility model is to provide a portable assembly tool for the crescent bearing assembly of a swash plate type hydraulic plunger pump to solve the problems existing in the above-mentioned related technologies, prevent the crescent bearing assembly assembled on the swash plate from falling off, and ensure the stability of the assembly of the crescent bearing assembly and the swash plate.

[0007] To achieve the above purpose, the present invention provides the following solutions:

[0008] The utility model provides a portable assembly tool for a crescent bearing assembly of a swash plate type hydraulic plunger pump, comprising a tool rod, a first clamping rod, a second clamping rod and an elastic connecting piece, wherein the first end of the tool rod is hinged to the first end of the first clamping rod, the second end of the tool rod is hinged to the first end of the second clamping rod, and the elastic connecting piece is arranged between the first clamping rod and the second clamping rod to form a clamping gap between the first clamping rod and the second clamping rod; when the crescent bearing body is assembled between the swash plate and the crescent bearing runway, the second end of the first clamping rod and the second end of the second clamping rod can be clamped on both sides of the crescent bearing body respectively, and the second end of the first clamping rod can be clamped between the first side of the crescent bearing body and the crescent bearing runway, and the second end of the second clamping rod can be clamped between the second side of the crescent bearing body and the crescent bearing runway, so that the crescent bearing body is fixed between the swash plate and the crescent bearing runway.

[0009] Preferably, the first end of the tooling rod is provided with a first connecting block, a first connecting groove is provided in the first connecting block, and the first end of the first clamping rod is hinged in the first connecting groove through a first connecting assembly.

[0010] Preferably, the first connecting assembly includes a first connecting screw and a first connecting nut, the first connecting screw is passed through the first connecting block and is fixedly connected to the first connecting block through the first connecting nut, and the first connecting screw passes through the first connecting groove and the first end of the first clamping rod, and the first end of the first clamping rod can rotate around the first connecting screw.

[0011] Preferably, a first sponge pad is provided on the inner side of the second end of the first clamping rod.

[0012] Preferably, the second end of the tooling rod is provided with a second connecting block, a second connecting groove is provided in the second connecting block, and the first end of the second clamping rod is hinged in the second connecting groove through a second connecting assembly.

[0013] Preferably, the second connecting assembly includes a second connecting screw and a second connecting nut, the second connecting screw is passed through the second connecting block and is fixedly connected to the second connecting block through the second connecting nut, and the second connecting screw passes through the second connecting groove and the first end of the second clamping rod, and the first end of the second clamping rod can rotate around the second connecting screw.

[0014] Preferably, a second sponge pad is provided on the inner side of the second end of the second clamping rod.

[0015] Preferably, the elastic connecting member includes a spring, which extends along the direction of the tooling rod, and a first pull ring is provided at the first end of the spring, a second pull ring is provided at the second end of the spring, a first hook is provided on the first clamping rod, and a second hook is provided on the second clamping rod, the first pull ring of the spring is sleeved on the first hook of the first clamping rod, and the second pull ring of the spring is sleeved on the second hook of the second clamping rod.

[0016] Compared with the related art, the utility model has achieved the following technical effects:

[0017] The camming member is a pair of camming members which are connected to each other to form a circle, and the camming member is engaged with the camming member and the camming member is engaged with the camming member, and the camming member is engaged with the camming member and the camming member is engaged with the camming member. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of a portable assembly tool for a swash plate type hydraulic plunger pump crescent bearing assembly provided by an embodiment of the present utility model;

[0020] Figure 2 A cross-sectional view of a portable assembly tool for a swash plate type hydraulic plunger pump crescent bearing assembly provided by an embodiment of the present utility model;

[0021] Figure 3 A schematic diagram of the usage status of the portable assembly tool for the crescent bearing assembly of the swash plate hydraulic plunger pump provided in an embodiment of the present utility model.

[0022] In the figure: 01-swash plate, 02-crescent bearing body, 03-crescent bearing runway, 100-swash plate type hydraulic plunger pump crescent bearing assembly portable assembly tool, 1-tooling rod, 101-first connecting block, 102-first connecting groove, 103-second connecting block, 104-second connecting groove, 2-first clamping rod, 201-first connecting assembly, 202-first sponge pad, 203-first hook, 3-second clamping rod, 301-second connecting assembly, 302-second sponge pad, 303-second hook, 4-spring, 401-first pull ring, 402-second pull ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The purpose of the utility model is to provide a portable assembly tool for the crescent bearing assembly of a swash plate type hydraulic plunger pump to solve the problems existing in the related technology, prevent the crescent bearing assembly assembled on the swash plate from falling off, and ensure the stability of the assembly of the crescent bearing assembly and the swash plate.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] like Figure 1-Figure 3 As shown, this embodiment provides a portable assembly tool 100 for a swash plate type hydraulic plunger pump crescent bearing assembly, comprising a tool rod 1, a first clamping rod 2, a second clamping rod 3 and an elastic connecting member; the first end of the tool rod 1 (i.e. Figure 1 The left end of the tooling rod 1) and the first end of the first clamping rod 2 (i.e. Figure 1 The upper end of the first clamping rod 2) is hinged, and the second end of the tooling rod 1 (i.e. Figure 1 The right end of the middle tooling rod 1) and the first end of the second clamping rod 3 (i.e. Figure 1The upper end of the second clamping rod 3 in the middle is hinged, and the elastic connecting piece is provided between the first clamping rod 2 and the second clamping rod 3, so that a clamping gap is formed between the first clamping rod 2 and the second clamping rod 3; when the crescent bearing body 02 is assembled between the swash plate 01 and the crescent bearing runway 03, the second end of the first clamping rod 2 (i.e. Figure 1 The lower end of the first clamping rod 2) and the second end of the second clamping rod 3 (ie Figure 1 The lower end of the second clamping rod 3) can be clamped on both sides of the crescent bearing body 02, and the second end of the first clamping rod 2 can be clamped on the first side of the crescent bearing body 02 (i.e. Figure 3 The second end of the second clamping rod 3 can be clamped on the second side of the crescent bearing body 02 (i.e. the left side of the middle crescent bearing body 02) and the crescent bearing runway 03. Figure 3 The right side of the middle crescent bearing body 02) and the crescent bearing raceway 03 are used to fix the crescent bearing body 02 between the swash plate 01 and the crescent bearing raceway 03.

[0027] In this embodiment, the first end of the tooling rod 1 is provided with a first connecting block 101 , a first connecting slot 102 is provided in the first connecting block 101 , and the first end of the first clamping rod 2 is hinged in the first connecting slot 102 through a first connecting assembly 201 .

[0028] Furthermore, the first connecting assembly 201 includes a first connecting screw and a first connecting nut. The first connecting screw is passed through the first connecting block 101 (such as Figure 1 As shown, the first connecting screw in this embodiment is arranged in a direction perpendicular to the paper surface) and is fixedly connected to the first connecting block 101 through a first connecting nut, and the first connecting screw passes through the first connecting slot 102 and the first end of the first clamping rod 2, and the first end of the first clamping rod 2 can rotate around the first connecting screw; specifically, as shown Figure 2 As shown, the first connecting groove 102 in this embodiment is a square groove, and the right side and the bottom side of the first connecting groove 102 are opened to facilitate the rotation of the first clamping rod 2.

[0029] In this embodiment, a first sponge pad 202 is provided on the inner side of the second end of the first clamping rod 2. By providing the first sponge pad 202 on the contact surface between the first clamping rod 2 and the crescent bearing body 02, the first clamping rod 2 is prevented from damaging the crescent bearing body 02 during the clamping process.

[0030] In this embodiment, the second end of the tooling rod 1 is provided with a second connecting block 103 , a second connecting slot 104 is provided in the second connecting block 103 , and the first end of the second clamping rod 3 is hinged in the second connecting slot 104 through a second connecting assembly 301 .

[0031] Furthermore, the second connecting assembly 301 includes a second connecting screw and a second connecting nut, and the second connecting screw is passed through the second connecting block 103 (such as Figure 1 As shown, the second connecting screw in this embodiment is arranged in a direction perpendicular to the paper surface) and is fixedly connected to the second connecting block 103 through a second connecting nut, and the second connecting screw passes through the second connecting slot 104 and the first end of the second clamping rod 3, and the first end of the second clamping rod 3 can rotate around the second connecting screw; specifically, as shown Figure 2 As shown, the second connecting groove 104 in this embodiment is a square groove, and the left side and the bottom side of the second connecting groove 104 are opened to facilitate the rotation of the second clamping rod 3.

[0032] In this embodiment, a second sponge pad 302 is provided on the inner side of the second end of the second clamping rod 3. By providing the second sponge pad 302 on the contact surface between the second clamping rod 3 and the crescent bearing body 02, the second clamping rod 3 is prevented from damaging the crescent bearing body 02 during the clamping process.

[0033] In this embodiment, the elastic connecting member includes a spring 4, which extends along the direction of the tooling rod 1, and the first end of the spring 4 (ie Figure 2 The left end of the middle spring 4) is provided with a first pull ring 401, and the second end of the spring 4 (i.e. Figure 2 A second pull ring 402 is provided at the right end of the middle spring 4, a first hook 203 is provided on the first clamping rod 2, and a second hook 303 is provided on the second clamping rod 3. The first pull ring 401 of the spring 4 is sleeved on the first hook 203 of the first clamping rod 2, and the second pull ring 402 of the spring 4 is sleeved on the second hook 303 of the second clamping rod 3.

[0034] The use process of the portable assembly tool 100 of the swash plate type hydraulic plunger pump crescent bearing assembly provided in this embodiment is as follows:

[0035] When using, Figure 3 As shown, place the swash plate 01 and the crescent bearing assembly on the hydraulic pump assembly workbench, open the first clamping rod 2 and the second clamping rod 3 of this tool, and through the elastic force of the spring 4, the second end of the first clamping rod 2 and the second end of the second clamping rod 3 are respectively clamped on both sides of the crescent bearing body 02 (be careful not to clamp the first clamping rod 2 and the second clamping rod 3 on the roller of the crescent bearing body 02). When the crescent bearing body 02 is assembled between the swash plate 01 and the crescent bearing runway 03, the second end of the first clamping rod 2 can be clamped between the first side of the crescent bearing body 02 and the crescent bearing runway 03, and the second end of the second clamping rod 3 can be clamped between the second side of the crescent bearing body 02 and the crescent bearing runway 03, thereby fixing the crescent bearing body 02 between the swash plate 01 and the crescent bearing runway 03, preventing the crescent bearing assembly assembled on the swash plate 01 from falling off, and ensuring the stability of the assembly of the crescent bearing assembly and the swash plate 01. After the swash plate assembly is installed, this tool can be removed.

[0036] In summary, this tooling can simply and efficiently participate in the assembly process of the hydraulic pump. Without using a large amount of grease, it can also solve the installation problem between the crescent bearing assembly and the swash plate 01, thereby realizing the rapid and reliable assembly of the swash plate assembly.

[0037] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A portable assembly tool for a swash plate type hydraulic plunger pump crescent bearing assembly, characterized by: The cam is connected to the first end of the second gear and the second end of the second gear is connected to the first end of the second gear, and the cam is connected to the first end of the second gear by the spring.

2. The portable assembly tool for the swash plate type hydraulic plunger pump crescent bearing assembly according to claim 1 is characterized by: The first end of the tooling rod is provided with a first connecting block, a first connecting slot is provided in the first connecting block, and the first end of the first clamping rod is hinged in the first connecting slot through a first connecting assembly.

3. The portable assembly tool for the crescent bearing assembly of the swash plate type hydraulic plunger pump according to claim 2 is characterized in that: The first connecting assembly includes a first connecting screw and a first connecting nut. The first connecting screw is passed through the first connecting block and is fixedly connected to the first connecting block through the first connecting nut. The first connecting screw passes through the first connecting groove and the first end of the first clamping rod. The first end of the first clamping rod can rotate around the first connecting screw.

4. The portable assembly tool for the swash plate type hydraulic plunger pump crescent bearing assembly according to claim 1 is characterized by: A first sponge pad is provided on the inner side of the second end of the first clamping rod.

5. The portable assembly tool for the swash plate type hydraulic plunger pump crescent bearing assembly according to claim 1 is characterized by: The second end of the tooling rod is provided with a second connecting block, a second connecting groove is provided in the second connecting block, and the first end of the second clamping rod is hinged in the second connecting groove through a second connecting assembly.

6. The portable assembly tool for the crescent bearing assembly of the swash plate type hydraulic plunger pump according to claim 5, characterized in that: The second connecting assembly includes a second connecting screw and a second connecting nut. The second connecting screw is passed through the second connecting block and is fixedly connected to the second connecting block through the second connecting nut. The second connecting screw passes through the second connecting groove and the first end of the second clamping rod. The first end of the second clamping rod can rotate around the second connecting screw.

7. The portable assembly tool for the crescent bearing assembly of the swash plate type hydraulic plunger pump according to claim 1 is characterized by: A second sponge pad is provided on the inner side of the second end of the second clamping rod.

8. The portable assembly tool for the crescent bearing assembly of the swash plate type hydraulic plunger pump according to any one of claims 1 to 7, characterized in that: The elastic connecting member includes a spring, which extends along the direction of the tooling rod, and a first pull ring is provided at the first end of the spring, a second pull ring is provided at the second end of the spring, a first hook is provided on the first clamping rod, and a second hook is provided on the second clamping rod. The first pull ring of the spring is sleeved on the first hook of the first clamping rod, and the second pull ring of the spring is sleeved on the second hook of the second clamping rod.

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