Assembly tool for fuel injection pump and support
By designing an assembly tool for the fuel injection pump and bracket, and using pads and locating pins to achieve precise alignment and fixation of the fuel injection pump and bracket, the problem of difficulty in directly assembling the fuel injection pump and bracket on the engine was solved, thereby improving production efficiency and quality.
Patent Information
- Application Number
- CN202423022537.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-09
AI Technical Summary
It is difficult to assemble the fuel injection pump and bracket directly on the engine, resulting in low production efficiency and unstable quality.
A fuel injection pump and bracket assembly tool was designed, including a pad, locating pins and connecting parts. The fuel injection pump and bracket were precisely positioned and fixed through locating holes and connecting holes, and were connected using studs and nuts.
The rapid and stable assembly of the fuel injection pump and the bracket is achieved, the labor intensity of workers is reduced, and the production efficiency and assembly quality are improved.
Smart Images
Figure CN223466216U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of engine, concretely relates to oil injection pump and support assembly tool. BACKGROUND
[0002] The oil injection pump is the core component of the engine fuel system, and its core role is to lift the fuel from the low pressure state to the high pressure state, and accurately deliver the high pressure fuel to each oil injector according to the working cycle of the engine, the ignition sequence of the cylinder and the demand of the actual working condition, timing and quantity.
[0003] At present, the engine design tends to be lightweight and compact, and the shape design of the oil injection pump support part is irregular, which causes the oil injection pump and the support to be unable to be directly assembled on the engine in sequence on the production line, increasing the assembly difficulty. Assembling the oil injection pump and the support manually offline has low production efficiency, and the quality stability of manual assembly is poor due to the irregularity of the parts. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing oil injection pump and support assembly tool to solve the above-mentioned shortcomings in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] The oil injection pump and support assembly tool comprises an oil injection pump body and an oil injection pump support, and comprises an assembly component.
[0007] Further, when the oil injection pump support base is placed on the pad, the first positioning pin and the second positioning pin are respectively inserted into the first positioning hole and the second positioning hole; when the oil injection pump support side wall is placed on the pad, the third positioning pin and the fourth positioning pin are respectively inserted into the third positioning hole and the fourth positioning hole.
[0008] Further, a plurality of connecting holes are respectively formed in the oil injection pump support, a plurality of second holes corresponding to the connecting holes are formed in the oil injection pump body, and the oil injection pump support and the oil injection pump body are connected through a connecting piece.
[0009] Further, the connecting piece comprises a plurality of double-headed studs, the double-headed studs are respectively extended from the connecting holes and the second holes at both ends, and nuts are threadedly connected to the double-headed studs.
[0010] Further, a through hole is formed on the base plate, and the through hole corresponds to a core shaft of the fuel injection pump.
[0011] Further, the first positioning pin, the second positioning pin, the third positioning pin and the fourth positioning pin are respectively rotatably connected with a first lock block, a second lock block, a third lock block and a fourth lock block, and the base plate is provided with a first lock groove, a second lock groove, a third lock groove and a third lock groove matched with the first lock block, the second lock block, the third lock block and the fourth lock block, and the first lock block, the second lock block, the third lock block and the fourth lock block are fixedly connected with a first spring, a second spring, a third spring and a fourth spring respectively.
[0012] In the above technical solution, the oil injection pump and support assembly tool provided by the utility model has the beneficial effects that:
[0013] The assembly component is arranged, the oil injection pump and the support can be assembled in advance, then the assembled support is mounted on the engine, the assembly is convenient and fast, the labor intensity of workers is reduced and the assembly time is shortened, the production rhythm is effectively improved, and the assembly quality of the oil injection pump and the support is ensured.
[0014] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, rather than intended to limit the disclosure.
[0015] This application file provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.
[0017] Figure 1 The base plate is provided with a base plate front view structure schematic diagram;
[0018] Figure 2 The base plate is provided with a base plate front view structure schematic diagram;
[0019] Figure 3 The mounting positioning sleeve structure schematic diagram is provided for the utility model embodiment;
[0020] Figure 4 The mounting positioning sleeve structure schematic diagram is provided for the utility model embodiment;
[0021] Figure 5 The utility model provides a fuel injection pump support structure schematic diagram Figure 1
[0022] Figure 6 The utility model provides a fuel injection pump support structure schematic diagram Figure 2
[0023] Figure 7 The utility model provides a first positioning pin structure schematic view
[0024] Figure 8 The utility model provides a pad and first lock block partial section structure schematic view.
[0025] Mark explanation:
[0026] 1, fuel injection pump body, 2, fuel injection pump support, 21, first positioning hole, 22, second positioning hole, 23, third positioning hole, 24, fourth positioning hole, 3, pad, 31, first positioning pin, 32, second positioning pin, 33, third positioning pin, 34, fourth positioning pin, 35, through -hole, 4, connecting hole, 51, first lock block, 52, first spring, 53, first lock slot, 6, positioning sleeve. Specific implementation
[0027] In order to make the purpose, technical scheme and advantage of the embodiment of the present disclosure more clear, the technical scheme of the embodiment of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiment of the present disclosure. Obviously, the described embodiment is a part of the embodiment of the present disclosure, rather than all the embodiments. Based on the described embodiment of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the present disclosure.
[0028] Please refer to Figures 1-8 , fuel injection pump and support assembly tool, including fuel injection pump body 1 and fuel injection pump support 2, including assembly component, the assembly component includes pad 3, the first positioning pin 31, second positioning pin 32, third positioning pin 33 and fourth positioning pin 34 are detachably connected on the pad 3 respectively, the first positioning hole 21, second positioning hole 22, third positioning hole 23 and fourth positioning hole 24 corresponding with first positioning pin 31, second positioning pin 32, third positioning pin 33 and fourth positioning pin 34 are set up on the fuel injection pump support 2 respectively.
[0029] First, the first positioning pin 31, the second positioning pin 32, the third positioning pin 33 and the fourth positioning pin 34 are sequentially connected to the base plate 3, the third positioning hole 23 and the fourth positioning hole 24 of the fuel pump support 2 are aligned and inserted with the third positioning pin 33 and the fourth positioning pin 34, so as to limit the movement of the fuel pump support 2, two positioning sleeves (for subsequent precise installation with the engine) are installed on the fuel pump support 2 through a sleeve punching process, the positioning sleeves are in interference fit with the fuel pump, and then the first positioning hole 21 and the second positioning hole 22 on the fuel pump are aligned and inserted with the first positioning pin 31 and the second positioning pin 32, the fuel pump support 2 is positioned again, and then the fuel pump body 1 is installed on the fuel pump support 2 to complete the assembly.
[0030] Further, when the base of the fuel pump support 2 is placed on the base plate 3, the first positioning pin 31 and the second positioning pin 32 are respectively inserted into the first positioning hole 21 and the second positioning hole 22; when the side wall of the fuel pump support 2 is placed on the base plate 3, the third positioning pin 33 and the fourth positioning pin 34 are respectively inserted into the third positioning hole 23 and the fourth positioning hole 24.
[0031] Further, a plurality of connecting holes 4 are formed on the fuel pump support 2, a plurality of second openings corresponding to the connecting holes 4 are formed on the fuel pump body 1, and the fuel pump support 2 and the fuel pump body 1 are connected by connecting pieces. The connecting pieces include a plurality of double-headed studs, the double-headed studs extend from the connecting holes 4 and the second openings at both ends respectively, and nuts are threadedly connected to the double-headed studs. The fuel pump support 2 and the fuel pump body 1 are connected and fixed by the double-headed studs and the nuts.
[0032] Further, a through hole 35 is formed on the base plate 3, and the through hole 35 corresponds to the core shaft of the fuel pump. Thus, the core shaft of the fuel pump is prevented from colliding with the base plate 3.
[0033] Further, the first positioning pin 31, the second positioning pin 32, the third positioning pin 33 and the fourth positioning pin 34 are respectively rotatably connected with a first lock block 51, a second lock block, a third lock block and a fourth lock block, the base plate 3 is provided with a first lock groove 53, a second lock groove, a third lock groove and a third lock groove corresponding to the first lock block 51, the second lock block, the third lock block and the fourth lock block, and the first lock block 51, the second lock block, the third lock block and the fourth lock block are respectively fixedly connected with a first spring 52, a second spring, a third spring and a fourth spring.
[0034] The first locking block 51 is manually pressed to retract into the first positioning pin 31 and compress the first spring 52, then the first positioning pin 31 is inserted into the base plate 3, and the first positioning pin 31 is rotated until the first locking block 51 extends into the first locking groove 53, thereby limiting the up and down movement of the first positioning pin 31; when the first positioning pin 31 needs to be unlocked, the first positioning pin 31 is rotated, and since the first locking block 51 is limited by the first locking groove 53, the rotation of the first positioning pin 31 makes the first locking block 51 retract into the first positioning pin 31, thereby unlocking the first positioning pin 31 and the base plate 3, and the second positioning pin 32, the third positioning pin 33 and the fourth positioning pin 34 are the same.
[0035] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.
Claims
1. An oil injection pump and bracket assembly tool comprising an oil injection pump body (1) and an oil injection pump bracket (2), characterized in that: The invention comprises an assembly component, wherein the assembly component comprises a backing plate (3), a first positioning pin (31), a second positioning pin (32), a third positioning pin (33) and a fourth positioning pin (34) are detachably connected to the backing plate (3), and a first positioning hole (21), a second positioning hole (22), a third positioning hole (23) and a fourth positioning hole (24) corresponding to the first positioning pin (31), the second positioning pin (32), the third positioning pin (33) and the fourth positioning pin (34) are respectively opened on the fuel injection pump bracket (2).
2. An injection pump and bracket assembly tool according to claim 1, wherein, When the base of the fuel injection pump bracket (2) is placed on the backing plate (3), the first positioning pin (31) and the second positioning pin (32) are respectively inserted into the first positioning hole (21) and the second positioning hole (22); when the side wall of the fuel injection pump bracket (2) is placed on the backing plate (3), the third positioning pin (33) and the fourth positioning pin (34) are respectively inserted into the third positioning hole (23) and the fourth positioning hole (24).
3. The fuel injection pump and bracket assembly tool of claim 1, wherein, The fuel injection pump bracket (2) is respectively provided with a plurality of connection holes (4), the fuel injection pump body (1) is provided with a plurality of second openings corresponding one-to-one to the connection holes (4), and the fuel injection pump bracket (2) and the fuel injection pump body (1) are connected via a connecting piece.
4. An oil injection pump and bracket assembly tool according to claim 3, wherein, The connecting piece comprises a plurality of studs, both ends of which extend from the connecting hole (4) and the second opening respectively and are threadedly connected with nuts.
5. The fuel injection pump and bracket assembly tool of claim 1, wherein, A through hole (35) is provided on the backing plate (3), and the through hole (35) corresponds to the core shaft of the fuel injection pump.
6. The fuel injection pump and bracket assembly tool of claim 1, wherein, The first locking block (51), the second locking block, the third locking block and the fourth locking block are rotatably connected to the first positioning pin (31), the second positioning pin (32), the third positioning pin (33) and the fourth positioning pin (34), respectively; the backing plate (3) is provided with a first locking groove (53), a second locking groove, a third locking groove and a third locking groove adapted to the first locking block (51), the second locking block, the third locking block and the fourth locking block; the first locking block (51), the second locking block, the third locking block and the fourth locking block are fixedly connected to the corresponding first positioning pin (31), the second positioning pin (32), the third positioning pin (33) and the fourth positioning pin (34), respectively, with a first spring (52), a second spring, a third spring and a fourth spring.