Positioning aid for assembling air-cooled diesel engine fuel injection pump

Abstract

The utility model discloses a kind of positioning auxiliary tools for air-cooled diesel engine fuel injection pump assembly, it is related to diesel engine fuel injection pump assembly technical field, including hanging plate, sliding block, pin plate and locking screw sleeve;Sliding block is connected with hanging plate, and sliding block can adjust position to be aligned with the process hole of fuel injection pump;Pin plate is matched with sliding block, for clamping fixed fuel injection pump;Locking screw sleeve is matched with pin plate, for locking pin plate;Hanging plate is used to connect with KBK to realize hoisting, effectively solve the problem that air-cooled diesel engine fuel injection pump needs two people to cooperate installation due to narrow assembly space, reduce assembly operation difficulty and manual labor intensity, only single person can complete assembly operation. It can accurately meet the installation position requirement of 12 cylinder air-cooled diesel engine fuel injection pump, ensure assembly accuracy. By adjusting the size of tooling, the assembly requirement of 8 cylinder air-cooled diesel engine fuel injection pump can be adapted. Improve the versatility and application range of auxiliary tool.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine fuel injection pump assembly technology, and in particular to a positioning auxiliary tool for assembling an air-cooled diesel engine fuel injection pump. Background Technology

[0002] During the assembly of an air-cooled diesel engine, the fuel injection pump presents significant challenges due to its large size and heavy weight (approximately 30 kg), coupled with the limited assembly space caused by the engine's internal structure. Currently, the assembly of the fuel injection pump requires two people to complete, and as a crucial step in diesel engine assembly, it must strictly adhere to the "three fixed" principle (fixed personnel, fixed machine, fixed procedure). This results in not only high operational difficulty but also high labor intensity during the assembly process. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a positioning aid for assembling an air-cooled diesel engine fuel injection pump, which solves the problem that the assembly space for air-cooled diesel engine fuel injection pumps is limited, requiring two people to work together to install them.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A positioning fixture for assembling an air-cooled diesel engine fuel injection pump includes a lifting plate, a sliding block one, a threaded lifting lug, a sliding block two, a pin plate one, a locking screw sleeve, a positioning screw sleeve, a pin plate two, and a sliding block three;

[0006] The sliding block is fixedly connected to the hanging plate, so that it is in the center position of the auxiliary tool, maintaining balance and stability on both sides;

[0007] The threaded lifting lug is fixed to the sliding block one, and the fuel injection pump is transferred and installed by lifting.

[0008] The positioning screw sleeve is fixed on the pin plate two. The pin plate two is connected to the sliding block three. The sliding block three is inserted into the lifting plate slide groove. It is adjusted to the position of the process hole of the fuel injection pump by sliding to meet the positioning and lifting operation of the 8-cylinder and 12-cylinder fuel injection pumps.

[0009] Sliding block 2 and locking nut are fixed on pin plate 1 and connected to the lifting plate. After the fuel injection pump is clamped, the locking nut is screwed into the fuel injection pump process hole. After the positioning nut is completely submerged in the back process hole and fully clamped, the hoisting operation is ready.

[0010] After assembly, it is connected to KBK via threaded lifting lugs to achieve positioning and lifting operations.

[0011] Preferred components: the hanging plate, sliding block one, threaded lifting lug, sliding block two, pin plate one, locking screw sleeve, positioning screw sleeve, pin plate two, and sliding block three are made of Q235 material and are processed and formed after heat treatment.

[0012] Preferred: The accessory is suitable for assembling a 12-cylinder air-cooled diesel engine injection pump, and can be adapted to assembling an 8-cylinder air-cooled diesel engine injection pump by adjusting the position of the sliding block three.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This design effectively solves the problem of requiring two people to install the fuel injection pump in air-cooled diesel engines due to limited assembly space, reducing the difficulty of assembly operations and the intensity of manual labor. Assembly can now be completed by a single person. It accurately meets the installation position requirements of the 12-cylinder air-cooled diesel engine fuel injection pump, ensuring assembly precision. By adjusting the tooling dimensions (such as the position of the sliding block), it can be adapted to the assembly requirements of the 8-cylinder air-cooled diesel engine fuel injection pump, improving the versatility and applicability of the auxiliary tools. Combined with KBK auxiliary lifting, it ensures that the fuel injection pump is vertically lowered into the engine block and accurately connected to the coupling during assembly, further guaranteeing the stability of assembly quality. Attached Figure Description

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0016] Fig. 1 This is an overall structural diagram of the present invention;

[0017] Fig. 2 This is a front view of the positioning aid in this utility model;

[0018] Fig. 3 This is a top view of the positioning aid in this utility model.

[0019] Legend: 1. Hanging plate; 2. Sliding block one; 3. Threaded lifting lug; 4. Sliding block two; 5. Pin plate one; 6. Locking screw sleeve; 7. Positioning screw sleeve; 8. Pin plate two; 9. Sliding block three. Detailed Implementation

[0020] This application provides a positioning aid for assembling an air-cooled diesel engine fuel injection pump, which effectively solves the problem that the assembly space for air-cooled diesel engine fuel injection pumps is small, requiring two people to work together to install them.

[0021] Example

[0022] like Figs. 1-3 As shown, the overall technical solution in this application embodiment is as follows:

[0023] To address the problems existing in the prior art, this utility model provides a positioning auxiliary tool for assembling an air-cooled diesel engine injection pump, including a lifting plate 1, a sliding block 1 2, a threaded lifting lug 3, a sliding block 2 4, a pin plate 1 5, a locking screw sleeve 6, a positioning screw sleeve 7, a pin plate 2 8, and a sliding block 3 9. All components are made of Q235 material. During the manufacturing process, the materials are first heat-treated to improve the structural strength, then the components are formed into their shaped structures through machining, and finally the components are assembled into an overall auxiliary tool through welding.

[0024] The lifting plate 1 is the core component for bearing and hoisting. Its top is equipped with a connection structure, such as a lifting ring or hook hole, compatible with the KBK hoisting equipment, allowing for stable connection to the KBK for hoisting of the entire auxiliary fixture and fuel injection pump. Sliding block 2 is fixedly connected to the lifting plate 1, placing it at the center of the auxiliary fixture to maintain balance and stability on both sides. Threaded lifting lug 3 is fixed to sliding block 2, enabling the transfer and installation of the fuel injection pump via hoisting. Positioning sleeve 7 is fixed to pin plate 8, which connects to sliding block 9. Sliding block 9 engages with the sliding groove of the lifting plate 1, and is adjusted to the position of the fuel injection pump's process hole to meet the positioning and hoisting requirements of 8-cylinder and 12-cylinder fuel injection pumps. Sliding block 4 and locking sleeve 6 are fixed to pin plate 5 and connected to the lifting plate 1. After the fuel injection pump is clamped, the locking sleeve 6 is screwed into the fuel injection pump's process hole, ensuring the positioning sleeve 7 is fully submerged in the back process hole and fully clamped. The hoisting operation is then complete. After completion, it is connected to KBK via threaded lifting lug 3 to achieve positioning and lifting operations.

[0025] The specific assembly steps are as follows:

[0026] Pre-treatment: Confirm that the hanging plate 1, sliding block 1 2, threaded lifting lug 3, sliding block 2 4, pin plate 1 5, locking screw sleeve 6, positioning screw sleeve 7, pin plate 2 8 and sliding block 3 9 have all undergone heat treatment and been welded and assembled. All parts are firmly connected and moving parts such as sliding block 3 9 slide smoothly.

[0027] Connection of auxiliary fixture and fuel injection pump: The operator places the fuel injection pump on a stable operating platform, and adjusts the position of sliding block 3 9 on the hanging plate 1 according to the number of cylinders of the fuel injection pump (12 cylinders or 8 cylinders) so that the positioning screw sleeve 7 is aligned with the process hole of the fuel injection pump; adjust sliding block 2 4 to align with the positioning hole on the other side of the fuel injection pump, and manually tighten the locking screw sleeve 6 so that the pin plate 1 5 firmly clamps the fuel injection pump, ensuring that the fuel injection pump and auxiliary fixture are relatively fixed.

[0028] Lifting and positioning: Connect the entire assembly (auxiliary fixtures + fuel injection pump) to the KBK lifting equipment via the lifting plate 1. Start the KBK to lift the fuel injection pump above the diesel engine block. Slowly adjust the lifting position of the KBK so that the mounting end of the fuel injection pump is aligned with the mounting interface inside the engine block, ensuring that the fuel injection pump is perpendicular to the mounting surface of the engine block.

[0029] Assembly and Fixing: Control KBK to slowly lower the fuel injection pump into the machine body until the front end of the fuel injection pump is connected to the coupling inside the machine body; after fixing the fuel injection pump to the coupling and machine body with bolts and other fasteners, loosen the locking sleeve 6 in the reverse direction to disengage the pin plate 8 from the fuel injection pump process hole, operate KBK to lift the auxiliary fixture away, and complete the assembly.

[0030] This embodiment achieves precise clamping by utilizing the process holes of the fuel injection pump itself, reduces the intensity of manual operation by combining KBK hoisting, and can adapt to the assembly requirements of 12-cylinder and 8-cylinder air-cooled diesel engine fuel injection pumps by adjusting the position of sliding block three 9. It is convenient to operate and has high stability.

[0031] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A positioning fixture for assembling a fuel injection pump in an air-cooled diesel engine, characterized in that, Includes a hanging plate (1), a sliding block one (2), a threaded lifting lug (3), a sliding block two (4), a pin plate one (5), a locking screw sleeve (6), a positioning screw sleeve (7), a pin plate two (8), and a sliding block three (9); Sliding block 1 (2) is fixedly connected to hanging plate (1) so that it is in the center position of the auxiliary tool, maintaining balance and stability on both sides; The threaded lifting lug (3) is fixed on the sliding block (2) to realize the transfer and installation of the fuel injection pump by lifting. The positioning screw sleeve (7) is fixed on the pin plate two (8), the pin plate two (8) is connected to the sliding block three (9), the sliding block three (9) is inserted into the sliding groove of the lifting plate (1), and is adjusted to the position of the injection pump process hole by sliding to meet the positioning and lifting operation of the 8-cylinder and 12-cylinder injection pumps. Sliding block 2 (4) and locking nut (6) are fixed on pin plate 1 (5) and connected to the lifting plate (1). After the fuel injection pump clamps, the locking nut (6) is screwed into the fuel injection pump process hole. After the positioning nut (7) is completely submerged in the back process hole and fully clamped, the hoisting operation is ready to be completed. After assembly, the assembly is connected to KBK via threaded lifting lug (3) to achieve positioning and lifting operations.

2. The positioning fixture for assembling an air-cooled diesel engine injection pump according to claim 1, characterized in that, The hanging plate (1), sliding block one (2), threaded lifting lug (3), sliding block two (4), pin plate one (5), locking screw sleeve (6), positioning screw sleeve (7), pin plate two (8) and sliding block three (9) are made of Q235 material and are processed and formed after heat treatment.

3. The positioning fixture for assembling an air-cooled diesel engine injection pump according to claim 1, characterized in that, The accessory is suitable for assembling a 12-cylinder air-cooled diesel engine injection pump, and can be adapted to assembling an 8-cylinder air-cooled diesel engine injection pump by adjusting the position of sliding block three (9).

Images