Diesel engine fuel injection pump plunger spring installation tool

Abstract

The utility model discloses a diesel engine fuel injection pump plunger spring installation tool, and relates to the technical field of fuel injection pump plunger spring replacement, the diesel engine fuel injection pump plunger spring installation tool comprises a plunger spring compression part and a clamp, the plunger spring compression part is used for compressing a plunger spring to the length capable of being placed between a plunger and a spring seat, and the clamp is provided with a compression spring placing station; the compression spring placing station is used for placing the plunger spring compressed by the plunger spring compression piece, the fixture can move the plunger spring placed on the compression spring placing station to the position between the plunger and the spring seat, the structure is simple, use is convenient, and the working efficiency and safety of replacing the plunger spring of the fuel injection pump are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of replacing a plunger spring of an injection pump, in particular to a tool for installing a plunger spring of an injection pump of a diesel engine. Background Art

[0002] At present, when the plunger spring of the fuel injection pump is broken, the fuel injection pump is replaced as a whole, and then the replaced pump body is disassembled and repaired, and the plunger spring of the fuel injection pump is replaced. However, the replacement time of the fuel injection pump as a whole is long, and a lot of manpower is required, which wastes labor power. In order to save maintenance time, it is tried to directly replace the plunger spring of the fuel injection pump without replacing the entire fuel injection pump. However, during the replacement process, the space for installing the fuel injection pump spring is very small due to the obstruction of the fuel injection pump plunger. During the disassembly process, since the spring has been broken, it can be easily disassembled and removed from the fuel injection pump body, but the installation process is relatively laborious. Two people must cooperate to compress the fuel injection pump spring and put it between the plunger and the spring seat. If the cooperation is not good during the replacement process, the spring will pop out and injure people, etc., and the installation process is troublesome and laborious, and the work efficiency is very low. Therefore, in order to solve the safety hazards and improve work efficiency, the utility model is manufactured. Utility Model Content

[0003] The utility model aims to provide a diesel engine fuel injection pump plunger spring installation tool to solve the problems existing in the above-mentioned prior art, with simple structure, convenient use and effective improvement of the working efficiency and safety of replacing the fuel injection pump plunger spring.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a diesel engine fuel injection pump plunger spring installation tool, comprising: a plunger spring compression piece and a fixture, wherein the plunger spring compression piece is used to compress the plunger spring to a length that can be placed between the plunger and the spring seat, the fixture is provided with a compression spring placement station, the compression spring placement station is used to place the plunger spring compressed by the plunger spring compression piece, and the fixture can move the plunger spring placed at the compression spring placement station to between the plunger and the spring seat.

[0006] Preferably, the plunger spring compression member includes a first clamping cover, a second clamping cover and a sliding rod, one end of the sliding rod is fixedly connected to the first clamping cover, the second clamping cover is slidably connected to the sliding rod, and the second clamping cover can move in a direction close to or away from the first clamping cover and maintain the moved position to compress the plunger spring which is sleeved on the outside of the sliding rod and placed between the first clamping cover and the second clamping cover.

[0007] Preferably, the first clamping cover and the second clamping cover have the same size, the length of the first clamping cover in the transverse direction is smaller than the diameter of the plunger spring, and the length of the first clamping cover in the vertical direction is larger than the diameter of the plunger spring.

[0008] Preferably, a locking nut is also included, the sliding rod is a threaded rod, a through hole is provided in the middle of the second clamping cover, one end of the threaded rod is vertically fixedly connected to the middle of the first clamping cover, and the other end is used to pass through the through hole and be threadedly connected to the locking nut, and rotating the locking nut can push the first clamping cover to move in the direction of the first clamping cover.

[0009] Preferably, the compression spring placement station is a groove, and a first opening and a second opening are provided on both sides of the groove, first baffles are provided on both sides of the first opening, and second baffles are provided on both sides of the second opening, the first baffle is used to tighten one end of the plunger spring, and the second baffle is used to tighten the other end of the plunger spring to place the plunger spring in the compression spring placement station, the first opening is used to allow the first clamping cover to pass through, and the second opening is used to allow the second clamping cover to pass through.

[0010] Preferably, the width of the first opening is greater than the length of the first clamping cover in the transverse direction, and the width of the first opening is smaller than the diameter of the plunger spring; the width of the second opening is greater than the length of the second clamping cover in the transverse direction, and the width of the second opening is smaller than the diameter of the plunger spring.

[0011] Preferably, the fixture further comprises a handle, and the handle is fixed to a side of the fixture away from the compression spring placement station.

[0012] Compared with the prior art, the utility model has achieved the following technical effects:

[0013] The utility model provides a diesel engine fuel injection pump plunger spring installation tool, which uses a plunger spring compression piece to compress the plunger spring to a length that can be placed between the plunger and the spring seat, and the compressed plunger spring is placed on a compression spring placement station driven by the plunger spring compression piece. After the plunger spring compression piece is removed, the compressed plunger spring continues to be on the compression spring placement station, and a moving fixture is used to place the plunger spring between the plunger and the spring seat. The plunger presses the plunger spring against the spring seat, and the fixture is taken out to complete the installation. The utility model has a simple structure and is easy to use, and effectively improves the work efficiency and safety of replacing the plunger spring of the fuel injection pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the structure of a plunger spring compression member in a plunger spring installation tool for a diesel engine fuel injection pump provided by the utility model;

[0016] Figure 2 for Figure 1 A top view of

[0017] Figure 3 A schematic diagram of the structure of a fixture in a diesel engine fuel injection pump plunger spring installation tool provided by the utility model;

[0018] Figure 4 A top view of a fixture in a diesel engine fuel injection pump plunger spring installation tool provided by the utility model;

[0019] In the figure: 1. plunger spring compression part; 2. clamp; 3. compression spring placement station; 4. first clamping cover; 5. second clamping cover; 6. threaded rod; 7. locking nut; 8. first opening; 9. groove; 10. second opening; 11. first baffle; 12. second baffle; 13. handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model aims to provide a diesel engine fuel injection pump plunger spring installation tool to solve the problems existing in the above-mentioned prior art, with simple structure, convenient use and effective improvement of the working efficiency and safety of replacing the fuel injection pump plunger spring.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The utility model provides a diesel engine fuel injection pump plunger spring installation tool, such as Figures 1 to 4As shown, it includes: a plunger spring compressor 1 and a fixture 2, the plunger spring compressor 1 is used to compress the plunger spring to a length that can be placed between the plunger and the spring seat, the fixture 2 is provided with a compression spring placement station 3, the compression spring placement station 3 is used to place the plunger spring compressed by the plunger spring compressor 1, and the fixture 2 can move the plunger spring placed at the compression spring placement station 3 to between the plunger and the spring seat, the plunger spring is compressed to a length that can be placed between the plunger and the spring seat by using the plunger spring compressor 1, the compressed plunger spring is placed on the compression spring placement station 3 under the drive of the plunger spring compressor 1, after the plunger spring compressor 1 is removed, the compressed plunger spring continues to be on the compression spring placement station 3, and the moving fixture 2 places the plunger spring on the The plunger spring is placed between the plunger and the spring seat, the fixture 2 is taken out, and the plunger spring is installed between the plunger and the spring seat. The installation is completed. The structure is simple and easy to use. It effectively improves the work efficiency and safety of replacing the plunger spring of the injection pump. The plunger spring compressor 1 is used to compress the plunger spring to a length that can be placed between the plunger and the spring seat. The compressed plunger spring is placed on the compression spring placement station 3 under the drive of the plunger spring compressor 1. After removing the plunger spring compressor 1, the compressed plunger spring continues to be on the compression spring placement station 3. The fixture 2 is moved to place the plunger spring between the plunger and the spring seat. The fixture 2 is taken out and the plunger spring is installed between the plunger and the spring seat. The installation is completed. The structure is simple and easy to use. It effectively improves the work efficiency and safety of replacing the plunger spring of the injection pump.

[0024] In a preferred embodiment, the plunger spring compression member 1 includes a first clamping cover 4, a second clamping cover 5 and a sliding rod, one end of the sliding rod is fixedly connected to the first clamping cover 4, and the second clamping cover 5 is slidably connected to the sliding rod. The second clamping cover 5 can move in a direction close to or away from the first clamping cover 4 and maintain the position after movement to compress the plunger spring which is sleeved on the outside of the sliding rod and placed between the first clamping cover 4 and the second clamping cover 5. The structure is simple and can compress the plunger spring between the first clamping cover 4 and the second clamping cover 5.

[0025] In a preferred embodiment, the diesel engine fuel injection pump plunger spring installation tool also includes a locking nut 7, the sliding rod is a threaded rod 6, a through hole is provided in the middle of the second clamping cover 5, one end of the threaded rod 6 is vertically fixedly connected to the middle of the first clamping cover 4, and the other end is used to pass through the through hole and be threadedly connected to the locking nut 7. Rotating the locking nut 7 can push the first clamping cover 4 to move in the direction of the first clamping cover 4. The structure is simple and the operation is convenient. By rotating the locking nut 7, the plunger spring can be compressed to a suitable length.

[0026] In a preferred embodiment, the compression spring placement station 3 is a groove 9, and a first opening 8 and a second opening 10 are provided on both sides of the groove 9. A first baffle 11 is provided on both sides of the first opening 8, and a second baffle 12 is provided on both sides of the second opening 10. The first baffle 11 is used to tighten one end of the plunger spring, and the second baffle 12 is used to tighten the other end of the plunger spring to place the plunger spring in the compression spring placement station 3. The first opening 8 is used to allow the first clamping cover 4 to pass through, and the second opening 10 is used to allow the second clamping cover 5 to pass through. The structure is simple and can limit the compressed plunger spring to the placement station.

[0027] In a preferred embodiment, the first clamping cover 4 and the second clamping cover 5 have the same size, the length of the first clamping cover 4 in the transverse direction is smaller than the diameter of the plunger spring, the length of the first clamping cover 4 in the vertical direction is larger than the diameter of the plunger spring, the width of the first opening 8 is larger than the length of the first clamping cover 4 in the transverse direction, and the width of the first opening 8 is smaller than the diameter of the plunger spring; the width of the second opening 10 is larger than the length of the second clamping cover 5 in the transverse direction, and the width of the second opening 10 is smaller than the diameter of the plunger spring. The structure is simple, and it is convenient to disassemble and take out the plunger spring compression part 1 after placing the compressed plunger spring in the placement station.

[0028] In a preferred embodiment, the fixture 2 further includes a handle 13 , which is fixed to a side of the fixture 2 away from the compression spring placement station 3 . The handle 13 has a simple structure and is convenient for moving the fixture 2 .

[0029] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A diesel engine fuel injection pump plunger spring installation tool, characterized in that: include: A plunger spring compressor, the plunger spring compressor is used to compress the plunger spring to a length that can be placed between the plunger and the spring seat; as well as The fixture is provided with a compression spring placement station, the compression spring placement station is used to place the plunger spring compressed by the plunger spring compression member, and the fixture can move the plunger spring placed in the compression spring placement station to between the plunger and the spring seat.

2. The diesel engine fuel injection pump plunger spring installation tool according to claim 1, characterized in that: The plunger spring compression member includes a first clamping cover, a second clamping cover and a sliding rod, one end of the sliding rod is fixedly connected to the first clamping cover, the second clamping cover is slidably connected to the sliding rod, and the second clamping cover can move in a direction close to or away from the first clamping cover and maintain the position after movement to compress the plunger spring which is sleeved on the outside of the sliding rod and placed between the first clamping cover and the second clamping cover.

3. The diesel engine fuel injection pump plunger spring installation tool according to claim 2, characterized in that: The first clamping cover and the second clamping cover have the same size, the length of the first clamping cover in the transverse direction is smaller than the diameter of the plunger spring, and the length of the first clamping cover in the vertical direction is larger than the diameter of the plunger spring.

4. The diesel engine fuel injection pump plunger spring installation tool according to claim 3, characterized in that: It also includes a locking nut, the sliding rod is a threaded rod, a through hole is provided in the middle of the second clamping cover, one end of the threaded rod is vertically fixedly connected to the middle of the first clamping cover, and the other end is used to pass through the through hole and be threadedly connected to the locking nut, and rotating the locking nut can push the first clamping cover to move in the direction of the first clamping cover.

5. The diesel engine fuel injection pump plunger spring installation tool according to claim 4, characterized in that: The compression spring placement station is a groove, and a first opening and a second opening are provided on both sides of the groove. First baffles are provided on both sides of the first opening, and second baffles are provided on both sides of the second opening. The first baffle is used to tighten one end of the plunger spring, and the second baffle is used to tighten the other end of the plunger spring to place the plunger spring in the compression spring placement station. The first opening is used to allow the first clamping cover to pass through, and the second opening is used to allow the second clamping cover to pass through.

6. The diesel engine fuel injection pump plunger spring installation tool according to claim 5, characterized in that: The width of the first opening is greater than the length of the first clamping cover in the transverse direction, and the width of the first opening is smaller than the diameter of the plunger spring; the width of the second opening is greater than the length of the second clamping cover in the transverse direction, and the width of the second opening is smaller than the diameter of the plunger spring.

7. The diesel engine fuel injection pump plunger spring installation tool according to claim 6, characterized in that: The clamp also includes a handle, which is fixed to a side of the clamp away from the compression spring placement station.

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