Chain cutting and dismantling tool

Abstract

The utility model belongs to the technical field of mechanical tools, and discloses a chain truncation dismantling tool which comprises a bottom plate, a first clamp and a second clamp are installed on the bottom plate, the first clamp and the second clamp are parallel to each other, and the second clamp is provided with a fork opening. The first clamp is fixedly provided with a hollow top cylinder, the front end of the top cylinder is provided with a top nozzle, the position of the top nozzle corresponds to the fork opening, the tail end of the top cylinder is fixedly provided with a nut, the nut is in threaded connection with a top rod, the front end of the top rod is integrally connected with an ejector pin, and the ejector pin is matched with the top nozzle in a sliding mode. Due to the adoption of the structural design, the pin shaft can be violently ejected out of the chain by completely depending on the rotating and advancing force between the nut and the ejector rod, and the position of the pin shaft of the chain is easy to determine under the effect of the fork entry, so that the pin shaft of the chain is beneficial to operation, convenient, safe, labor-saving and high in applicability.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical tooling technology, specifically relating to a tooling for shortening and dismantling chains. Background Technology

[0002] A chain is a mechanical component composed of a series of links or rings, widely used in various mechanical devices. Chains can be classified into four types according to their purpose and function: drive chains, conveyor chains, traction chains, and special-purpose chains. Drive chains are mainly used to transmit power, conveyor chains are used to transport materials, traction chains are used for pulling and lifting, while special-purpose chains are used in specific mechanical devices and have special functions and structures. Chains are widely used in many fields such as chemical engineering, industrial equipment, construction machinery, conveyors, and metallurgy. Chains are usually made of metals, such as carbon steel and stainless steel, and have high strength and wear resistance. Roller chains are a common type of chain, consisting of inner and outer links, pins, bushings, and rollers. During operation, the inner and outer links can flex relative to each other, and the bushings can rotate freely around the pins. As an important component of mechanical transmission, chains play a crucial role in various fields.

[0003] In some matching installation situations, the chain length cannot be well adapted to the installation. An excessively long chain affects the tension of the transmission, so the chain needs to be shortened. The conventional way to shorten the chain in the workshop is to grind away the pins on both sides of the chain with a polishing machine or other equipment, and then manually push or pull out the pins. However, the protruding end of the pin is not long and generally has a small diameter, so it is difficult to clamp and align, making this work time-consuming and labor-intensive. Utility Model Content

[0004] In view of the problems mentioned above in the background art, the purpose of this utility model is to provide a chain shortening and dismantling tool.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] The chain shortening and dismantling fixture includes a base plate, on which a first clamp and a second clamp are mounted. The first clamp and the second clamp are parallel to each other, and the second clamp is provided with a fork.

[0007] The first clamp is fixedly installed with a top cylinder, which is hollow inside. The front end of the top cylinder is provided with a top nozzle, which is positioned corresponding to the fork. The tail end of the top cylinder is fixedly installed with a nut, which is threadedly connected to a top rod. The front end of the top rod is integrally connected with a pin, which slides and matches the top nozzle. A hand crank is installed at the tail end of the top rod.

[0008] Furthermore, the clamping and fixing end of the first clamp is equipped with an anti-slip pad. This design ensures the positional fixation of the top cylinder, thereby preventing it from shifting under reaction force.

[0009] Further limit, the nut is welded to the tail end of the top cylinder, such design, firm and easy to form.

[0010] Further limit, the top nozzle is provided with a avoiding mouth, such design, can make the pin shaft of the chain into it, play the purpose of auxiliary positioning placement.

[0011] Further limit, the top rod gap matches the top cylinder, such design, ensure the movement level of the top rod, no deviation in the axial direction, and then ensure the horizontal ejection effect of the top pin.

[0012] The beneficial effects of the utility model are as follows:

[0013] The structure design of the utility model can forcibly eject the pin shaft from the chain by the rotating force between the nut and the top rod, and the position of the chain pin shaft is easy to determine under the effect of the fork, thereby facilitating operation, being convenient, safe, labor-saving and high in applicability.

[0014] The utility model has simple and reasonable structure, outstanding use effect, is favorable for production and installation, and is high in cost performance. DETAILED DESCRIPTION OF DRAWINGS

[0015] The utility model can be further illustrated by the non-limiting embodiments shown in the drawings.

[0016] Figure 1 It is a top view structural schematic diagram of the chain shortening and removing tool embodiment of the utility model;

[0017] Figure 2 It is a right view structural schematic diagram of the chain shortening and removing tool embodiment of the utility model;

[0018] Figure 3 It is a cross-sectional structural schematic diagram of the chain shortening and removing tool embodiment of the utility model;

[0019] The main element symbol explanations are as follows:

[0020] Base plate 1, first clamp 2, second clamp 3, fork 4, top cylinder 5, top nozzle 6, nut 7, top rod 8, top pin 9, hand lever 10, avoiding mouth 11. DETAILED DESCRIPTION

[0021] In order to make those skilled in the art better understand the utility model, the technical scheme of the utility model is further illustrated below in combination with the drawings and embodiments.

[0022] Embodiment one:

[0023] As Figure 1As shown, the chain shortening and removing tool comprises a bottom plate 1, the bottom plate 1 is provided with a first clamp 2 and a second clamp 3, the first clamp 2 and the second clamp 3 are parallel to each other, the second clamp 3 is provided with a fork 4;

[0024] The first clamp 2 is fixedly provided with a top cylinder 5, the top cylinder 5 is hollow, the front end of the top cylinder 5 is provided with a top nozzle 6, the position of the top nozzle 6 corresponds to the fork 4, the tail end of the top cylinder 5 is fixedly provided with a nut 7, the nut 7 is threadedly connected with a top rod 8, the front end of the top rod 8 is integrally connected with a thimble 9, the thimble 9 is slidingly matched with the top nozzle 6, and the tail end of the top rod 8 is provided with a hand lever 10.

[0025] In the embodiment, the pin shaft position of the chain is placed in the fork 4, and the horizontal plane of the side of the chain and the horizontal plane of the side of the second clamp are in contact, and the gap between the top nozzle 6 and the horizontal plane of the side of the second clamp 3 is limited, in the case that one end of the chain pin shaft is placed in the fork 4, the other side of the chain is resisted by the top nozzle 6, so that the chain cannot fall off, and then the hand lever 10 is manually rotated, under the thread connection effect of the nut 7, the top rod 8 moves towards the second clamp 3, the thimble 9 moves towards the pin shaft of the chain in the top nozzle 6, and the thimble 9 can forcibly eject the pin shaft from the chain, thereby achieving the purpose of disassembling the pin shaft, and then achieving the purpose of shortening the chain.

[0026] Further, the pin shaft can be forcibly inserted into the chain in the same way, thereby achieving the purpose of splicing the chain.

[0027] Embodiment two:

[0028] As shown in the drawings, Figure 1 , Figure 3 The clamping fixed end of the first clamp 2 is provided with an anti-skid pad, which ensures the position fixing effect of the top cylinder 5, and prevents displacement under the reaction force.

[0029] In the embodiment, the main purpose is to strengthen the fixing effect of the top cylinder 5 and the detachability of the top cylinder 5, if the disassembly of the top cylinder 5 is not considered, the top cylinder 5 can be directly welded on the first clamp 2, or the top cylinder 5 and the first clamp 2 can be integrally formed, so actually, the connection structure between the first clamp 2 and the top cylinder 5 can be considered according to the specific situation.

[0030] Embodiment three:

[0031] As shown in the drawings, Figure 1 , Figure 3 The nut 7 is welded at the tail end of the top cylinder 5, which is firm and easy to form.

[0032] In this implementation case, the nut 7, as a structure that moves with the thread of the push rod 8, can be directly integrally formed with the push cylinder 5. However, the structure of being cut and welded is beneficial for adapting to the upright rod 8 with different thread and diameter specifications, making it more flexible to use and facilitating the subsequent replacement of the nut 7.

[0033] Example 4:

[0034] like Figure 3 As shown, the top nozzle 6 is provided with a clearance opening 11. This design allows the chain pin to be inserted into it, serving as an auxiliary positioning tool.

[0035] In this implementation, the depth of the clearance 11 is not limited, but the lower edge of the inner diameter must be at the same level as the lower edge of the fork opening to ensure that the pin is level after it is inserted, which in turn facilitates the accurate alignment of the ejector pin 9.

[0036] Example 5:

[0037] like Figure 3 As shown, the gap between the push rod 8 and the push cylinder 5 is matched. This design ensures that the push rod 8 moves horizontally and does not deviate in the axial direction, thereby ensuring the horizontal ejection effect of the push pin 9.

[0038] In this implementation case, the top cylinder 5 limits the travel direction of the top rod 8. In fact, the size of the gap between the top rod 8 and the top cylinder 5 can also be considered according to the specific situation.

[0039] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A chain shortening and removal tool comprising a base plate (1) characterised in that: The bottom plate (1) is provided with a first clamp (2) and a second clamp (3), the first clamp (2) and the second clamp (3) are parallel to each other, and the second clamp (3) is provided with a fork (4); The first clamp (2) is fixedly provided with a top cylinder (5), the inside of the top cylinder (5) is hollow, the front end of the top cylinder (5) is provided with a top nozzle (6), the position of the top nozzle (6) corresponds to the fork (4), the tail end of the top cylinder (5) is fixedly provided with a nut (7), the nut (7) is threadedly connected with a top rod (8), the front end of the top rod (8) is integrally connected with a thimble (9), the thimble (9) is slidingly matched with the top nozzle (6), and the tail end of the top rod (8) is provided with a hand lever (10).

2. The chain shorting removal tool of claim 1, wherein: The clamping fixed end of the first clamp (2) is provided with an anti-skid pad.

3. The chain shorting removal tool of claim 2, wherein: The nut (7) is welded to the tail end of the top cylinder (5).

4. The chain shorting removal tool of claim 3, wherein: The top nozzle (6) is provided with an avoiding opening (11).

5. The chain shorting removal tool of claim 4, wherein: The top rod (8) is gap matched with the top cylinder (5).

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