A compressor crankshaft riveting device

The design of the detachable riveting head and placement plate solves the adaptation difficulties caused by the fixed installation of the riveting head in the existing technology, realizes quick replacement and stable positioning, improves production efficiency and reduces maintenance costs.

CN224587419UActive Publication Date: 2026-08-04DONGBEI ELECTROMECHANICAL (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGBEI ELECTROMECHANICAL (JIANGSU) CO LTD
Filing Date
2025-08-29
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing compressor crankshaft riveting devices, the fixed installation of the riveting head makes replacement difficult, making it hard to adapt to crankshafts of different sizes and shapes, increasing production costs and adjustment complexity.

Method used

A detachable riveting head structure was designed, which enables quick installation and disassembly through threaded rods and nuts, and facilitates the replacement of the placement plate by using trapezoidal blocks and spring telescopic rods. Combined with the mechanical structure of hydraulic cylinders and slides, it achieves stable positioning of different crankshafts.

Benefits of technology

This improved the equipment's adaptability to different crankshafts, reduced equipment adjustment time and maintenance costs, and enhanced production efficiency and market competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of compressor crankshafts riveting equipment, specifically related to crankshaft riveting technical field, including bottom plate and T-shaped plate, the replacement structure design of riveting head is ingenious, by loosening the nut, rotating threaded rod, the quick installation and disassembly of riveting head are realized, when needing to process crankshafts of different sizes or shapes, just pull down pull plate, drive trapezoidal block two compression spring telescopic rod, it can easily pull out placing plate to replace, new placing plate is slid into placing groove by the cooperation of slide bar and sliding slot two, automatically fixed using the interaction of trapezoidal block one and trapezoidal block two, it is easy and fast to operate, improve the adaptation ability and replacement efficiency of different crankshafts of equipment, reduce the downtime due to equipment adjustment, improve production efficiency, the equipment is through ingenious mechanical structure design, the convenient replacement and stable installation of placing plate and riveting head are realized, reduce the use and maintenance cost of equipment.
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Description

Technical Field

[0001] This utility model relates to the field of crankshaft riveting technology, specifically to a compressor crankshaft riveting device. Background Technology

[0002] In the compressor manufacturing process, crankshaft riveting is one of the key processes, and its riveting quality directly affects the performance and service life of the compressor.

[0003] Chinese Patent Publication No. CN221210541U discloses a compressor crankshaft riveting device. Compared with the prior art, this compressor crankshaft riveting device allows manual placement of the bottom crankshaft component into a hole in a counterweight block. The bottom crankshaft component is then lifted through the hole, and the middle crankshaft component is placed on top of the bottom component manually. By rotating the push rod on the second limiting rod, the limiting block on the push rod is pressed down to clamp and fix the middle component. Then, by rotating the first and second limiting screws, the push rod is fixed as a whole. Finally, the first and second electric push rods push the first and second clamping blocks to side-limit the crankshaft component to be processed. Moreover, it can clamp and fix crankshaft components of different sizes, making it easier for workers to clamp the crankshaft to be processed and reducing the occurrence of offset and error.

[0004] However, the compressor crankshaft riveting device mentioned in the above scheme has a riveting head that is fixedly installed on the device, making it inconvenient to replace or repair. Furthermore, the crankshaft placement plate is mostly a fixed structure, which is difficult to adapt to crankshafts of different sizes and shapes. If crankshafts of different specifications need to be processed, it is often necessary to replace the entire equipment or make complex adjustments, which is not only time-consuming and labor-intensive, but also increases production costs.

[0005] Therefore, it is necessary to invent a compressor crankshaft riveting device. Utility Model Content

[0006] The purpose of this invention is to provide a compressor crankshaft riveting device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a compressor crankshaft riveting device, comprising a base plate and a T-shaped plate. A vertical plate is fixedly provided at one top end of the base plate, a long plate is slidably provided on one side of the vertical plate, and a C-shaped plate is fixedly provided at one end of the long plate. The T-shaped plate is movably engaged between the two side walls of the C-shaped plate. A rotating shaft is rotatably provided at both ends of the C-shaped plate, and a threaded rod is fixedly provided at the top of the rotating shaft. A rectangular groove is provided at both ends of the T-shaped plate, and the threaded rod is movably engaged in the rectangular groove. A nut is threaded onto the outer wall of the top end of the threaded rod. A riveting head is fixedly provided at the bottom of the T-shaped plate, and the riveting head penetrates the C-shaped plate. A fixing plate is fixedly provided at the top of the base plate, and a placement groove is provided at the top of the fixing plate. A placement plate is detachably provided in the placement groove.

[0008] Preferably, the placement plate has symmetrically distributed rectangular grooves II, a spring telescopic rod is fixedly provided on one inner wall of the rectangular groove II, a trapezoidal block II is fixedly provided at the other end of the spring telescopic rod, and trapezoidal blocks I are fixedly provided on both sides of the placement plate.

[0009] Preferably, a pull plate is fixedly provided at the bottom of the trapezoidal block two.

[0010] Preferably, slide rods are fixedly provided on both sides of the placement plate, and slide grooves are provided on both sides of the placement slot, with the slide rods slidably installed in the slide grooves.

[0011] Preferably, the top of the placement plate has a groove.

[0012] Preferably, a horizontal plate is fixedly provided on one side of the vertical plate, and a hydraulic cylinder is fixedly provided on the top of the horizontal plate. The telescopic end of the hydraulic cylinder passes through the horizontal plate and is fixedly connected to the long plate.

[0013] Preferably, a slider is fixedly provided on one side of the long plate, and a groove is fixedly provided on one side of the vertical plate, with the slider slidably installed in the groove.

[0014] Preferably, the bottom of the C-shaped plate has a through groove, and the riveting head passes through the through groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The replacement structure of the riveting head is ingeniously designed. By loosening the nut and rotating the threaded rod, the riveting head can be quickly installed and removed. When it is necessary to process crankshafts of different sizes or shapes, simply pull the pull plate to drive the trapezoidal block two to compress the spring telescopic rod, and the placement plate can be easily pulled out for replacement. The new placement plate slides into the placement groove through the cooperation of the slide rod and the slide groove two. Automatic fixation is achieved by the interaction of trapezoidal block one and trapezoidal block two. The operation is simple and quick, which improves the equipment's adaptability to different crankshafts and the replacement efficiency, reduces downtime caused by equipment adjustment, and improves production efficiency.

[0017] 2. Through its ingenious mechanical structure design, this equipment enables convenient replacement and stable installation of the placement plate and riveting head. Compared with traditional equipment, it reduces complex adjustment procedures and reliance on special tools, thereby lowering the cost of use and maintenance and enhancing the company's competitiveness in the market. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of this utility model;

[0019] Figure 2 Provided by this utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 3 A schematic diagram of the T-shaped plate structure provided by this utility model;

[0021] Figure 4 A schematic diagram of the placement plate structure provided by this utility model.

[0022] In the diagram: 1. Base plate; 11. Vertical plate; 111. Slide groove one; 13. Horizontal plate; 131. Hydraulic cylinder; 14. Long plate; 15. C-shaped plate; 155. Through groove; 16. Fixing plate; 161. Slide groove two; 162. Placement groove; 21. T-shaped plate; 211. Rectangular groove one; 22. Rotating shaft; 23. Threaded rod; 24. Nut; 26. Riveting head; 31. Placement plate; 311. Trapezoidal block one; 312. Slide rod; 32. Rectangular groove two; 33. Groove; 34. Spring telescopic rod; 35. Trapezoidal block two; 36. Pull plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Figures 1-4 As shown, this utility model provides a compressor crankshaft riveting device, including a base plate 1 and a T-shaped plate 21. A vertical plate 11 is fixedly provided at one top end of the base plate 1. A long plate 14 is slidably provided on one side of the vertical plate 11. A C-shaped plate 15 is fixedly provided at one end of the long plate 14. The T-shaped plate 21 is movably engaged between the two side walls of the C-shaped plate 15. A rotating shaft 22 is rotatably provided at both ends of the C-shaped plate 15. A threaded rod 23 is fixedly provided at the top of the rotating shaft 22. A rectangular groove 211 is provided at both ends of the T-shaped plate 21. The threaded rod 23 is movably engaged in the rectangular groove 211. A nut 24 is threaded onto the outer wall of the top end of the threaded rod 23. A riveting head 26 is fixedly provided at the bottom of the T-shaped plate 21. The riveting head 26 penetrates the C-shaped plate 15. A fixing plate 16 is fixedly provided at the top of the base plate 1. A placement groove 162 is provided at the top of the fixing plate 16. A placement plate 31 is detachably provided in the placement groove 162.

[0025] Furthermore, the placement plate 31 has symmetrically distributed rectangular grooves 32, a spring telescopic rod 34 is fixedly installed on one inner wall of the rectangular groove 32, a trapezoidal block 35 is fixedly installed at the other end of the spring telescopic rod 34, and trapezoidal blocks 311 are fixedly installed on both sides of the placement plate 31.

[0026] Furthermore, a pull plate 36 is fixedly provided at the bottom of the trapezoidal block 35.

[0027] Furthermore, slide rods 312 are fixedly provided on both sides of the placement plate 31, and slide grooves 161 are provided on both sides of the placement groove 162. The slide rods 312 are slidably installed in the slide grooves 161 to facilitate the sliding of the slide rods 312.

[0028] Furthermore, the top of the placement plate 31 is provided with a groove 33 to facilitate the placement of the crankshaft.

[0029] Furthermore, a horizontal plate 13 is fixedly provided on one side of the vertical plate 11, and a hydraulic cylinder 131 is fixedly provided on the top of the horizontal plate 13. The telescopic end of the hydraulic cylinder 131 passes through the horizontal plate 13 and is fixedly connected to the long plate 14 to facilitate the lifting and lowering of the long plate 14.

[0030] Furthermore, a slider is fixedly provided on one side of the long plate 14, and a groove 111 is fixedly provided on one side of the vertical plate 11. The slider is slidably installed in the groove 111 to facilitate the sliding of the long plate 14.

[0031] Furthermore, the bottom of the C-shaped plate 15 is provided with a through groove 155, and the riveting head 26 passes through the through groove 155.

[0032] Working principle: When using this solution, firstly, the compressor crankshaft is placed in the groove 33 on the top of the placement plate 31. The shape of the groove 33 is adapted to the crankshaft, which can initially position the crankshaft. If it is necessary to position crankshafts of different sizes or shapes, the placement plate 31 can be replaced. The pull plate 36 can be pulled to drive the trapezoidal block 35 to compress the spring telescopic rod 34. Then the placement plate 31 can be pulled out for replacement. After the new placement plate 31 is taken out, the slide rod 312 can be slid into the placement groove 162 along the slide groove 161. When the inclined edge of the trapezoidal block 311 and the trapezoidal block 35 comes into contact with each other, the trapezoidal block 35 can be squeezed, which in turn squeezes the spring telescopic rod 34. When the trapezoidal block 311 moves to the top driven by the trapezoidal block 35, the spring telescopic rod 34 restores its deformation and pushes the trapezoidal block 35 to reset, which can prevent the trapezoidal block 311 from moving and fix the placement plate 31.

[0033] When the riveting head 26 wears out due to prolonged use, or when it needs to be replaced with a different specification of riveting head 26 to meet specific riveting requirements, the replacement operation begins. The nut 24 is loosened, causing it to move away from the T-shaped plate 21. Then, the threaded rod 23 is rotated downwards, causing it to move out of the rectangular slot 211 and no longer fix the T-shaped plate 21. The same operation is performed on the other side of the threaded rod 23. Finally, the T-shaped plate 21 and the riveting head 26 can be removed from the C-shaped plate 15. Then replace the T-shaped plate 21 and the riveting head 26. After taking out the new riveting head 26, the T-shaped plate 21 can be placed into the C-shaped plate 15 to pre-fix the T-shaped plate 21. At this time, the new riveting head 26 will pass through the through groove 155 at the bottom of the T-shaped plate 21. Then the threaded rod 23 can be rotated upward to make the threaded rod 23 fit into the rectangular groove 211 on one side of the T-shaped plate 21, thereby fixing the T-shaped plate 21 again. Then tighten the nut 24 to further stabilize and fix the new T-shaped plate 21 and the riveting head 26.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compressor crankshaft riveting apparatus comprising a base plate (1) and a T-shaped plate (21), characterized in that: A vertical plate (11) is fixedly provided at one top end of the base plate (1). A long plate (14) is slidably provided on one side of the vertical plate (11). A C-shaped plate (15) is fixedly provided at one end of the long plate (14). A T-shaped plate (21) is movably engaged between the two side walls of the C-shaped plate (15). A rotating shaft (22) is rotatably provided at both ends of the C-shaped plate (15). A threaded rod (23) is fixedly provided at the top of the rotating shaft (22). A rectangular groove (211) is provided at both ends of the T-shaped plate (21). The threaded rod (23) is movably locked in the rectangular groove (211). The top outer wall of the threaded rod (23) is threaded with a nut (24). The bottom of the T-shaped plate (21) is fixedly provided with a riveting head (26). The riveting head (26) passes through the C-shaped plate (15). The top of the base plate (1) is fixedly provided with a fixing plate (16). The top of the fixing plate (16) is provided with a placement groove (162). The placement groove (162) is detachably provided with a placement plate (31).

2. A riveting apparatus for a compressor crankshaft as set forth in claim 1, characterized in that: The placement plate (31) has symmetrically distributed rectangular grooves (32) inside. A spring telescopic rod (34) is fixedly installed on one side of the inner wall of the rectangular groove (32). A trapezoidal block (35) is fixedly installed at the other end of the spring telescopic rod (34). A trapezoidal block (311) is fixedly installed on both sides of the placement plate (31).

3. A riveting apparatus for a compressor crankshaft as defined in claim 2 wherein: The bottom of the trapezoidal block 2 (35) is fixedly provided with a pull plate (36).

4. The riveting apparatus of claim 1, wherein: The placement plate (31) is fixedly provided with sliding rods (312) on both sides, and the placement groove (162) is provided with sliding grooves (161) on both sides, and the sliding rods (312) are slidably installed in the sliding grooves (161).

5. The riveting apparatus of claim 1, wherein: The top of the placement plate (31) is provided with a groove (33).

6. A riveting apparatus for compressor crankshafts as defined in claim 1 wherein: A horizontal plate (13) is fixedly provided on one side of the vertical plate (11), and a hydraulic cylinder (131) is fixedly provided on the top of the horizontal plate (13). The telescopic end of the hydraulic cylinder (131) passes through the horizontal plate (13) and is fixedly connected to the long plate (14).

7. A riveting apparatus for a compressor crankshaft as defined in claim 6 wherein: A slider is fixedly provided on one side of the long plate (14), and a slide groove (111) is fixedly provided on one side of the vertical plate (11), and the slider is slidably installed in the slide groove (111).

8. The riveting apparatus of claim 1, wherein: The bottom of the C-shaped plate (15) is provided with a through groove (155), and the riveting head (26) passes through the through groove (155).