Chain assembling tool
By designing a grooved bracket and a chain assembly tool driven by a hydraulic cylinder, the problem of chain pin alignment was solved, achieving convenience and high efficiency in chain assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU HETAI LIANYUN MASCH INTELLIGENT MFG CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-04-17
AI Technical Summary
Existing chain assembly fixtures are difficult to align chain pins during operation, resulting in inconvenient and inefficient assembly.
A chain assembly tool was designed, comprising a grooved bracket, a hydraulic cylinder, a pressure plate, a positioning groove, and a through hole. The hydraulic cylinder drives the pressure plate to position the pin in the positioning groove, and the positioning groove and through hole work together to achieve accurate positioning and stable assembly of the chain plate.
This has improved the convenience of chain assembly and increased work efficiency, ensuring the uniform insertion and stable connection of chain pins.
Smart Images

Figure CN224128539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of chain assembly, and in particular to a chain assembly tool. Background Technology
[0002] Chains are generally metal links or rings, mostly used for mechanical transmission and traction, as well as chain-like objects used to obstruct traffic (such as in streets, river or harbor entrances). Chains are used for mechanical transmission and can be divided into four types: transmission chains, conveyor chains, traction chains, and special professional chains. They are widely used in our lives.
[0003] The patent application (application number) CN201510560472.7 discloses a special clamp for chain assembly. In use, one of two parallel outer chain plates is placed against the inner side of a top plate opposite the jack's push rod. After aligning the two parallel inner chain plates, the bushing, and the other outer chain plate in sequence, the chain pin is aligned with the holes in the outer and inner chain plates on that side. The jack is then activated, causing the jack's push rod to contact and connect with the end of the chain pin. The jack's push rod is then pushed out further, aligning with the chain pin. Applying uniform stress causes the chain pin to slowly penetrate the outer chain plate, inner chain plate, bushing, and the inner and outer chain plates on the opposite side until the assembly of that chain section is completed. The special jig for chain assembly does not provide any positioning for the chain pin, outer chain plate, etc. In actual operation, it is difficult to maintain the state after aligning two parallel inner chain plates, bushings, and another outer chain plate, and then aligning the chain pin with the holes of the outer and inner chain plates on that side. This results in assembly failure, inconvenience in use, and low work efficiency. Summary of the Invention
[0004] The purpose of this invention is to solve the problems in the prior art and to propose a chain assembly tool that is easy to use and improves work efficiency.
[0005] To achieve the above objectives, this utility model proposes a chain assembly tool, including a grooved bracket, a hydraulic cylinder, a pressure plate, several positioning grooves I and several through holes I. The hydraulic cylinder is provided on the front groove wall of the grooved bracket, and the hydraulic rod of the hydraulic cylinder extends into the grooved bracket and is provided with a pressure plate. The pressure plate is provided with positioning grooves I that cooperate with the pin heads of the pin shafts. The rear groove wall of the grooved bracket is provided with through holes I that correspond one-to-one with the positioning grooves I. The inner side of the rear groove wall of the grooved bracket is provided with positioning grooves III that cooperate with the outer chain plates.
[0006] Preferably, there are two positioning grooves I, and the pressure plate between the two positioning grooves I is fixedly connected to the hydraulic rod of the hydraulic cylinder by screws.
[0007] Preferably, the rear groove wall of the grooved bracket is provided with a through hole II corresponding to the hydraulic rod of the hydraulic cylinder, and the diameter of the through hole II is not less than the diameter of the pin head.
[0008] Preferably, the diameter of the through hole I matches the pin head of the pin shaft, and the through hole I is concentric with the positioning groove I.
[0009] Preferably, the grooved support is disposed inside the reinforcing member.
[0010] Preferably, the upper ends of the two groove walls of the groove-shaped bracket are provided with two positioning grooves II, and positioning rods are inserted into the two corresponding positioning grooves II. The positioning grooves II are C-shaped grooves.
[0011] The beneficial effects of this utility model are as follows: This utility model extends the hydraulic rod of the hydraulic cylinder into the grooved bracket and is equipped with a pressure plate. The pressure plate is provided with a positioning groove I that mates with the pin head of the pin shaft. The rear groove wall of the grooved bracket is provided with through holes I that correspond one-to-one with the positioning groove I. The inner side of the rear groove wall of the grooved bracket is provided with a positioning groove III that mates with the outer chain plate. The pin shaft is positioned by the positioning groove I, and the corresponding outer chain plate is positioned by the positioning groove III. Compared with the prior art, this utility model is more convenient to use and improves work efficiency.
[0012] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0013] Figure 1 This is a structural schematic diagram of a chain assembly tool according to the present invention;
[0014] Figure 2 This is a schematic diagram showing that the outer link plate has a pin.
[0015] In the figure: 1-slot-shaped bracket, 2-hydraulic cylinder, 3-pressure plate, 4-positioning groove I, 5-through hole I, 6-screw, 7-through hole II, 8-pin, 9-positioning groove III, 10-reinforcing member, 11-positioning rod, 12-positioning groove II, 101-slot-shaped part, 102-connector. Detailed Implementation
[0016] See Figure 1 , Figure 2This utility model discloses a chain assembly tool, including a grooved bracket 1, a hydraulic cylinder 2, a pressure plate 3, several positioning grooves I4, and several through holes I5. The hydraulic cylinder 2 is provided on the front groove wall of the grooved bracket 1. The hydraulic rod of the hydraulic cylinder 2 extends into the grooved bracket 1 and is provided with the pressure plate 3. The pressure plate 3 is provided with positioning grooves I4 that cooperate with the pin head of the pin shaft 8. The rear groove wall of the grooved bracket 1 is provided with through holes I5 that correspond one-to-one with the positioning grooves I4. The inner side of the rear groove wall of the grooved bracket 1 is provided with positioning grooves III9 that cooperate with the outer chain plate.
[0017] There are two positioning slots I4, and the pressure plate 3 between the two positioning slots I4 is fixedly connected to the hydraulic rod of the hydraulic cylinder 2 by screws 6.
[0018] The rear groove wall of the groove bracket 1 is provided with a through hole II7 corresponding to the hydraulic rod of the hydraulic cylinder 2, and the diameter of the through hole II7 is not less than the diameter of the pin head.
[0019] The diameter of the through hole I5 matches the pin head of the pin shaft 8, and the through hole I5 is concentric with the positioning groove I4.
[0020] The grooved bracket 1 is located inside the reinforcing member 10.
[0021] The reinforcing member 10 includes two grooved members 101 and a connecting body 102 disposed between the two grooved members 101.
[0022] The upper ends of the two groove walls of the groove bracket 1 are provided with two positioning grooves II12, and positioning rods 11 are inserted into the two corresponding positioning grooves II12. The positioning grooves II12 are C-shaped grooves.
[0023] The front end of the pressure plate 3 is provided with two top heads 13, which correspond one-to-one with the positioning grooves I4 and are concentric.
[0024] The working process of this utility model:
[0025] In the operation of this chain assembly tool, two positioning rods 13 are pulled out, and then the pins of two pins 8 passing through an outer chain plate are inserted into the corresponding bushings of two inner chain links, and then placed into the slotted bracket 1. The pin heads of the pins 8 are inserted into the corresponding positioning slots I4, and then another outer chain plate is placed into the positioning slot III9. Then the positioning rods 13 are inserted into the corresponding positioning slots II12. Then the hydraulic rod of the hydraulic cylinder 2 is extended and pushes the pressure plate 3. The pressure plate 3 pushes the two pins 8 through the corresponding outer chain plates.
[0026] When a pin needs to be pressed out, remove the pressure plate 3, align the pin head of the pin to be pressed out 8 with the through hole II7, and then operate the hydraulic rod of the hydraulic cylinder 2 to extend and push the corresponding pin 8 to press it out.
[0027] When it is necessary to press out two adjacent pins, remove the pressure plate 3, then install the top head 13 facing the pin 8 on the hydraulic rod, then insert the pin head of the corresponding pin 8 into the corresponding through hole I5, and then operate the hydraulic rod of the hydraulic cylinder 2 to extend and push the corresponding pin 8 to press it out.
[0028] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A chain assembly tool characterized by: The system includes a slotted bracket (1), a hydraulic cylinder (2), a pressure plate (3), several positioning slots I (4), and several through holes I (5). The front slotted wall of the slotted bracket (1) is provided with a hydraulic cylinder (2). The hydraulic rod of the hydraulic cylinder (2) extends into the slotted bracket (1) and is provided with a pressure plate (3). The pressure plate (3) is provided with a positioning slot I (4) that mates with the pin head of the pin shaft (8). The rear slotted wall of the slotted bracket (1) is provided with through holes I (5) that correspond one-to-one with the positioning slots I (4). The inner side of the rear slotted wall of the slotted bracket (1) is provided with a positioning slot III that mates with the outer chain plate. (9) There are two positioning grooves I (4). The pressure plate (3) between the two positioning grooves I (4) is fixedly connected to the hydraulic rod of the hydraulic cylinder (2) by screws (6). The rear groove wall of the groove bracket (1) is provided with a through hole II (7) corresponding to the hydraulic rod of the hydraulic cylinder (2). The diameter of the through hole II (7) is not less than the diameter of the pin. The upper ends of the two groove walls of the groove bracket (1) are provided with two positioning grooves II (12). The positioning rod (11) is inserted in the two corresponding positioning grooves II (12). The positioning groove II (12) is a C-shaped groove.
2. A chain assembly tool as claimed in claim 1, wherein: The diameter of the through hole I (5) matches the pin head of the pin shaft (8), and the through hole I (5) is concentric with the positioning groove I (4).
3. A chain assembly tool as claimed in claim 1, wherein: The grooved bracket (1) is located inside the reinforcing member (10).
4. A chain assembly tool as claimed in claim 3, wherein: The reinforcing member (10) includes two grooved members (101) and a connecting body (102) disposed between the two grooved members (101).
Citation Information
Patent Citations
Special clamping fixture for chain assembly
CN105082023A