Swing fixing tool for assembling A4VG plunger pump

Abstract

The utility model discloses a swing fixing tool used for A4VG plunger pump assembly, which comprises a shell, a swing and at least two fixing pieces, a groove is arranged on the surface of the shell, the swing is placed at the bottom of the groove, one end of each fixing piece is fixedly connected with the shell, the other end of each fixing piece abuts against the swing, each fixing piece is of a Z-shaped structure, and the shell is fixedly connected with the swing. The shell comprises a first straight section, a second straight section and a vertical section, the two ends of the vertical section are connected with one end of the first straight section and one end of the second straight section respectively, preset angles are formed between the vertical section and the first straight section and between the vertical section and the second straight section, the first straight section is fixedly connected with the surface of the shell at the opening of the groove, and the second straight section is used for resisting swing.

Description

Technical Field

[0001] The utility model relates to a swing fixing tooling for the assembly of an A4VG piston pump. Background Art

[0002] Due to the special structure of the A4VG series piston pump, after the swing is installed, the housing needs to be placed horizontally and then the main shaft is installed, and then the subsequent assembly work is carried out. Therefore, when the housing is placed horizontally, it is not enough to fix the swing only through grease and some other moving parts. At this time, the swing is very likely to be misaligned due to shaking. The piston pump assembled with a misaligned swing will cause varying degrees of damage to the swing, cylinder block, piston, valve plate, etc. during operation. When the assembly worker installs the main shaft, the installed swing often tilts or falls, resulting in repeated assembly, which leads to difficult assembly, long time consumption and low work efficiency; during the product debugging process, complex mechanical neutral position adjustment is required. Content of the Utility Model

[0003] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art and provide a swing fixing tooling for the assembly of an A4VG piston pump.

[0004] A swing fixing tooling for the assembly of an A4VG piston pump includes a housing, a swing, and at least two fixing members. A groove is provided on the surface of the housing, the swing is placed at the bottom of the groove, one end of the fixing member is fixedly connected to the housing, and the other end abuts against the swing.

[0005] Preferably, the fixing member is of a "Z" shape, which includes a first straight section, a second straight section, and a vertical section. The two ends of the vertical section are respectively connected to one end of the first straight section and the second straight section, and a predetermined angle is provided between the vertical section and the first straight section and the second straight section. The first straight section is fixedly connected to the surface of the housing at the opening of the groove, and the second straight section is used to abut against the swing.

[0006] Preferably, threaded holes are provided on the surfaces of the first straight section and the second straight section. The first straight section is connected to the surface of the housing through a first bolt passing through the threaded hole on the first straight section and the preset threaded hole on the surface of the housing. A second bolt is inserted into the threaded hole on the second straight section, and the bottom surface of the second bolt is connected to the surface of the swing. The second bolt is used to abut against the swing.

[0007] Preferably, the number of the fixing members is two, and the two fixing members are arranged oppositely.

[0008] Beneficial Effects: Compared with the prior art, the utility model uses the original installation threaded holes of the piston pump housing to fix one end, and the other end makes rigid contact with the large plane of the swing through the bottom of the screw to fix the swing. The operation is simple and the stability is good. And through simple manual measurement, it can be ensured that the swing is in the mechanical neutral position, and no mechanical neutral position adjustment is required during the test bench debugging. Description of the Drawings

[0009] Figure 1 It is a schematic diagram of the use of a swing fixing tooling for the assembly of A4VG piston pumps;

[0010] Figure 2 It is a schematic diagram of the fixing part;

[0011] In the figure, 1 is the housing, 2 is the fixing part, 3 is the first bolt, 4 is the second bolt, 5 is the swing, 6 is the first straight section, 7 is the vertical section, and 8 is the second straight section. Detailed Description of the Preferred Embodiment

[0012] To deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0013] As Figure 1-2 shown, 1 is the housing, 2 is the fixing part, 3 is the first bolt, 4 is the second bolt, 5 is the swing, 6 is the first straight section, 7 is the vertical section, and 8 is the second straight section;

[0014] A swing fixing tooling for the assembly of A4VG piston pumps includes a housing 1, a swing 5, and at least two fixing parts 2. A groove is provided on the surface of the housing 1, and the swing 5 is placed at the bottom of the groove. One end of the fixing part 2 is fixedly connected to the housing 1, and the other end abuts against the swing 5. The fixing part 2 has a "Z" - shaped structure, which includes a first straight section 6, a second straight section 8, and a vertical section 7. Both ends of the vertical section 7 are respectively connected to one end of the first straight section 6 and the second straight section 8, and a predetermined angle is provided between the vertical section 7 and the first straight section 6 and the second straight section 8. The first straight section 6 is fixedly connected to the surface of the housing 1 at the opening of the groove, and the second straight section 8 is used to abut against the swing 5.

[0015] In this embodiment, threaded holes are provided on the surfaces of the first straight section 6 and the second straight section 8. The first straight section 6 is connected to the housing 1 through the threaded hole on the first straight section 6 and the preset threaded hole on the surface of the housing 1 by the first bolt 3. A second bolt 4 is inserted into the threaded hole on the second straight section 8, and the bottom surface of the second bolt 4 is connected to the surface of the swing 5. The second bolt 4 is used to abut against the swing 5.

[0016] In this embodiment, the number of the fixing parts 2 is two, and the two fixing parts 2 are arranged oppositely.

[0017] Usage instructions: One end of the piston pump housing 1 is fixed by using the original installation threaded hole of the piston pump housing 1, and the other end is in rigid contact with the large plane of the swing 5 through the bottom of the screw to fix the swing 5. The operation is simple and the stability is good. And by simple manual measurement, it can be ensured that the swing 5 is in the mechanical middle position, so that mechanical middle position adjustment is not required during the test bench debugging.

[0018] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A swing fixing tool for assembling an A4VG plunger pump, characterized in that: It includes a shell, a swing and at least two fixing parts. The shell surface is provided with a groove, the swing is placed at the bottom of the groove, one end of the fixing part is fixedly connected to the shell, and the other end is against the swing.

2. A swing fixing fixture for assembling an A4VG plunger pump according to claim 1, characterized in that: The fixing member is a "Z"-shaped structure, which includes a first straight section, a second straight section, and a vertical section. The two ends of the vertical section are respectively connected to one end of the first straight section and the second straight section, and a predetermined angle is set between the vertical section and the first straight section and the second straight section. The first straight section is fixedly connected to the shell surface at the opening of the groove, and the second straight section is used to resist swinging.

3. The swing fixing fixture for assembling the A4VG plunger pump according to claim 2, characterized in that: The surfaces of the first straight section and the second straight section are provided with threaded holes, and the first straight section is connected to the threaded hole preset on the shell surface by a first bolt passing through the threaded hole on the first straight section, and a second bolt is passed through the threaded hole on the second straight section, and the bottom surface of the second bolt is connected to the swinging surface, and the second bolt is used to resist the swing.

4. A swing fixing fixture for assembling an A4VG plunger pump according to claim 3, characterized in that: The number of the fixing members is two, and the two fixing members are arranged opposite to each other.

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