A feeding device for inserting a compressor piston pin

By designing a feeding device that uses a chain to drive the carrier and the pusher, the problem of feeding the compressor piston pins in batches was solved, the feeding efficiency was improved and the pin surface was protected.

CN224543658UActive Publication Date: 2026-07-24ANHUI ANRUICHUAN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ANRUICHUAN INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing technologies are insufficient to meet the feeding requirements of mass assembly of compressor piston pins, resulting in low assembly efficiency.

Method used

Design a feeding device for compressor piston pin insertion. The device uses a chain to drive a carrier block and a pusher block to feed the pin from the material trough. The device uses a transmission system of chain, sprocket and rotating rod to push the pin out and move it to the insertion station.

Benefits of technology

This improves the efficiency of piston pin insertion, avoids damage to the pin surface, and meets the needs of mass production insertion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of feeding devices for compressor piston pin plug-in installation, it includes processing table:The top of the processing table is fixedly connected with plate frame, the inner wall of the plate frame is fixedly installed with chute plate by bolt, the inner wall of the plate frame is rotatably connected with two symmetrical setting rotating rods, the surface of the rotating rod is fixedly connected with sprocket, the surface of the sprocket is drivingly connected with chain, the surface of the chain is fixedly connected with load block by bolt.The utility model drives load block and push block transmission by chain, so that push block will pin rod be pushed out from the top of chute plate to the surface of load block, simultaneously chain drives pin rod to move to plug-in station by load block, i.e. it can reach multiple pin rods can be placed in chute, subsequently transmission feeding of pin rod is carried out by the cooperation of push block and load block driven by chain, meet the demand of pin rod feeding when piston pin plug-in production, to improve the purpose of piston pin plug-in efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of compressor processing technology, and in particular relates to a feeding device for piston pin insertion in a compressor. Background Technology

[0002] In compressor manufacturing, the piston pin, as the core component connecting the piston and connecting rod, directly affects the operational stability of the equipment due to its installation quality. The following explanation covers three aspects: preparation, core steps, and precision control: 1. Hot fitting pretreatment: The piston is heated in 100-120°C hot oil for 5-10 minutes (avoid exceeding 150°C to prevent changes in material properties). This utilizes the principle of thermal expansion to increase the pin hole diameter by 15mm. The piston pin is then installed using a piston pin insertion device.

[0003] Since the piston and pin insertion process is a batch operation, and the pin is a standard part, it is difficult to meet the needs of mass production of piston pins by picking and placing the pins one by one in the piston pin insertion process. Therefore, a feeding device for compressor piston pin insertion is needed, which can place multiple pins in a material trough, and then drive the pins to feed them through the cooperation of a chain-driven shifting block and a carrier block, thereby meeting the feeding needs of the pins in the piston pin insertion production and improving the efficiency of piston pin insertion. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for piston pin insertion in a compressor. This device places multiple pins in a feed trough, and then uses a chain to drive a pusher block and a carrier block to feed the pins, meeting the feeding requirements during piston pin insertion production and thus improving the efficiency of piston pin insertion. This addresses the technical problems mentioned in the background section.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A feeding device for piston pin insertion of a compressor includes a processing table: a plate frame is fixedly connected to the top of the processing table, a material trough plate is fixedly installed on the inner wall of the plate frame by bolts, two symmetrically arranged rotating rods are rotatably connected to the inner wall of the plate frame, a sprocket is fixedly connected to the surface of the rotating rod, a chain is drivenly connected to the surface of the sprocket, a carrier block is fixedly connected to the surface of the chain by bolts, a lever is integrally formed on the surface of the carrier block, a baffle is welded to the surface of the material trough plate, a limiting base is installed on the top of the processing table, a piston head is provided in the inner cavity of the limiting base, a pneumatic push rod and a fixed push rod are installed on the top of the processing table, and a motor is fixedly installed on the surface of the plate frame by bolts.

[0006] Preferably, the top of the carrier block has a groove that matches the piston pin.

[0007] Preferably, both the pneumatic push rod and the fixed push rod have protective sleeves attached to their surfaces, and the protective sleeves are rubber sleeves.

[0008] Preferably, the output shaft of the motor passes through the inner cavity of the plate frame and is fixedly connected to the rotating rod.

[0009] Preferably, the bottom of the feed trough plate has a rectangular opening that matches the pry bar.

[0010] The beneficial effects of this utility model are: 1. This utility model uses a chain to drive a carrier block and a pusher block, so that the pusher block pushes the pin from the top of the material trough plate to the surface of the carrier block. At the same time, the chain drives the pin to move to the insertion station through the carrier block. This allows multiple pins to be placed in the material trough. Then, the chain drives the pusher block and the carrier block to feed the pins, which meets the feeding requirements of the piston pin insertion production and thus improves the piston pin insertion efficiency. 2. This utility model protects the surfaces of the pneumatic push rod and the fixed push rod by providing a protective sleeve, thus preventing damage to the surface of the latter when they come into direct contact with the pin. Attached Figure Description

[0011] in: Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle; Figure 3 This is one embodiment of the present utility model. Figure 1 A magnified view of point B in the middle.

[0012] The attached diagram lists the components represented by each number as follows: 1. Processing table, 2. Plate frame, 3. Material trough plate, 4. Rotating rod, 5. Sprocket, 6. Chain, 7. Carrier block, 8. Pulley block, 9. Baffle, 10. Limiting base, 11. Piston head, 12. Pneumatic push rod, 13. Fixed push rod, 14. Protective sleeve, 15. Motor. Detailed Implementation

[0013] In the following description, embodiments of the compressor piston pin insertion feeding device of the present invention will be described with reference to the accompanying drawings. Example 1

[0014] Figure 1-3This invention illustrates a feeding device for piston pin insertion in a compressor, comprising a processing table 1. A frame 2 is fixedly connected to the top of the processing table 1. A material trough 3 is bolted to the inner wall of the frame 2. Two symmetrically arranged rotating rods 4 are rotatably connected to the inner wall of the frame 2. A sprocket 5 is fixedly connected to the surface of the rotating rod 4. A chain 6 is drivenly connected to the surface of the sprocket 5. A carrier block 7 is bolted to the surface of the chain 6. The top of the carrier block 7 has a groove adapted to the piston pin. A lever 8 is integrally formed on the surface of the carrier block 7. The material trough 3... A baffle 9 is welded to the surface. A limiting base 10 is installed on the top of the processing table 1. A piston head 11 is provided in the inner cavity of the limiting base 10. A pneumatic push rod 12 and a fixed push rod 13 are installed on the top of the processing table 1. Protective sleeves 14 are attached to the surfaces of the pneumatic push rod 12 and the fixed push rod 13. The protective sleeves 14 are rubber sleeves. The protective sleeves 14 are used to wrap and protect the surfaces of the pneumatic push rod 12 and the fixed push rod 13, so as to avoid damage to the surface of the latter when they come into direct contact with the pin. A motor 15 is fixedly installed on the surface of the plate frame 2 by bolts. Example 2

[0015] Figure 1-3 This invention illustrates a feeding device for piston pin insertion in a compressor, comprising a processing table 1. A plate frame 2 is fixedly connected to the top of the processing table 1. A material trough plate 3 is fixedly installed on the inner wall of the plate frame 2 by bolts. Two symmetrically arranged rotating rods 4 are rotatably connected to the inner wall of the plate frame 2. A sprocket 5 is fixedly connected to the surface of the rotating rod 4. A chain 6 is drivenly connected to the surface of the sprocket 5. A carrier block 7 is fixedly connected to the surface of the chain 6 by bolts. A lever block 8 is integrally formed on the surface of the carrier block 7. A baffle 9 is welded to the surface of the material trough plate 3. A limiting base 10 is installed on the top of the processing table 1. A piston head 11 is provided in the inner cavity of the limiting base 10. A pneumatic push rod 12 and a fixed push rod 13 are installed on the top of the processing table 1. A motor 15 is fixedly installed on the surface of the plate frame 2 by bolts. The output shaft of the motor 15 passes through the inner cavity of the plate frame 2 and is fixedly connected to the rotating rod 4. A rectangular opening adapted to the lever block 8 is provided at the bottom of the material trough plate 3.

[0016] Working Principle: When using this utility model, the user places the piston head 11 in the limiting base 10, and then places multiple pins on the top of the material trough plate 3. The pins are limited by the baffle 9. At this time, the motor 15 drives the rotating rod 4 to rotate, so that the rotating rod 4 drives the chain 6 through the sprocket 5. Then the chain 6 drives the carrier block 7 and the pusher block 8, so that the pusher block 8 pushes the pins from the top of the material trough plate 3 to the surface of the carrier block 7. At the same time, the chain 6 drives the pins to the insertion station through the carrier block 7. Then, the pneumatic pusher rod 12 pushes the pins into the piston head 11 and abuts against the fixed pusher rod 13, so that multiple pins can be placed in the material trough. Then, the chain drives the pusher block and the carrier block to transmit and feed the pins, which meets the feeding requirements of the pins during the piston pin insertion production, thereby improving the efficiency of piston pin insertion.

[0017] In summary, this piston pin insertion feeding device for compressors uses a chain 6 to drive a carrier block 7 and a lever block 8. The lever block 8 pulls the pin from the top of the material trough plate 3 to the surface of the carrier block 7. At the same time, the chain 6, through the carrier block 7, moves the pin to the insertion station. This allows multiple pins to be placed in the material trough. Subsequently, the chain drives the lever block and the carrier block to feed the pins, meeting the feeding requirements of piston pin insertion production and thus improving the efficiency of piston pin insertion.

Claims

1. A feeding device for piston pin insertion in a compressor, characterized in that, The equipment includes a processing table (1): a plate frame (2) is fixedly connected to the top of the processing table (1), a material trough plate (3) is fixedly installed on the inner wall of the plate frame (2) by bolts, two symmetrically arranged rotating rods (4) are rotatably connected to the inner wall of the plate frame (2), a sprocket (5) is fixedly connected to the surface of the rotating rod (4), a chain (6) is driven connected to the surface of the sprocket (5), a carrier block (7) is fixedly connected to the surface of the chain (6) by bolts, a paddle block (8) is integrally formed on the surface of the carrier block (7), a baffle (9) is welded to the surface of the material trough plate (3), a limiting base (10) is installed on the top of the processing table (1), a piston head (11) is provided in the inner cavity of the limiting base (10), a pneumatic push rod (12) and a fixed push rod (13) are installed on the top of the processing table (1), and a motor (15) is fixedly installed on the surface of the plate frame (2) by bolts.

2. The feeding device for piston pin insertion in a compressor according to claim 1, characterized in that, The top of the carrier block (7) is provided with a groove that matches the piston pin.

3. The feeding device for piston pin insertion in a compressor according to claim 2, characterized in that, The surfaces of the pneumatic push rod (12) and the fixed push rod (13) are both covered with protective sleeves (14), which are rubber sleeves.

4. A feeding device for piston pin insertion in a compressor according to claim 3, characterized in that, The output shaft of the motor (15) passes through the inner cavity of the plate frame (2) and is fixedly connected to the rotating rod (4).

5. A feeding device for piston pin insertion in a compressor according to claim 4, characterized in that, The bottom of the trough plate (3) is provided with a rectangular opening that is compatible with the lever block (8).