Wheel disc hoisting tool

Abstract

A wheel disc hoisting tool relates to the field of machining. The problems that a wheel disc is prone to being abraded in the lifting process of an existing lifting tool, and then the product quality is reduced are solved. The clamp comprises at least two clamp bodies and sliding expansion pins, the at least two clamp bodies are symmetrically distributed in the circumferential direction, the two clamp bodies are suitable for being inserted into a center hole of a wheel disc, a protection pad covers the inner wall of a clamping groove, the wheel disc is prevented from being in direct contact with the clamp bodies through the protection pad, and the clamping effect is improved. The wheel disc can be prevented from being abraded in the hoisting process, the two clamp bodies can be pushed to be far away from each other by inserting the sliding expansion pin into the position between the two clamp bodies, so that the clamping grooves are connected with the wheel disc in a clamping mode, and the wheel disc can be hoisted after the lifting hooks are connected with the lifting rings; and the clamp body is not in direct contact with the wheel disc, so that the wheel disc is prevented from being abraded in the hoisting process, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, specifically to a wheel-type hoisting tool. Background Technology

[0002] Gas turbine disks have various structures. When broaching the tenon grooves of the disk, the disk needs to be hoisted onto a broaching machine equipped with broaching clamps.

[0003] In existing technologies, two symmetrical clamps are typically inserted into the central hole of a wheel, and then the clamps are expanded to engage with the bottom surface of the wheel for lifting. For example, patent CN216764066U, entitled "A Wheel Lifting Tool with a Conical Inner Hole," describes a lifting tool where the lifting body retracts and is inserted into the inner hole of the part. The lower end of the lifting body expands by adjusting the position of a sliding expansion pin, and the inclined surface of the lower outer circle of the lifting body engages with the inclined surface of the wheel. After the crane hook is connected to the shackle, the wheel can be lifted. Although this method achieves wheel lifting, the lower end of the lifting tool directly contacts the wheel after expansion, which can easily cause friction between the lifting tool and the wheel during lifting, leading to wear on the wheel and reducing product quality.

[0004] In summary, existing lifting equipment suffers from wear and tear on the wheel discs during lifting, which in turn reduces product quality. Utility Model Content

[0005] The purpose of this invention is to solve the problem that when the lower end of the lifting device expands and comes into direct contact with the wheel, friction easily occurs between the lifting device and the wheel during the lifting process, leading to wear on the wheel and reduced product quality. Therefore, this invention provides a wheel lifting tool.

[0006] The technical solution of this utility model is: a wheel lifting tool, which includes: a clamp body and a sliding expansion pin. The clamp body has at least two clamp bodies symmetrically distributed in the circumferential direction. The two clamp bodies are adapted to be inserted into the central hole of the wheel. Each clamp body is provided with at least a slot that engages with the bottom surface of the wheel and the inner surface of the central hole.

[0007] The top of the sliding expansion pin is provided with a lifting ring. The sliding expansion pin is adapted to be inserted between and connected to the two clamp bodies, thereby pushing the two clamp bodies away from each other to achieve the engagement of the slot and the wheel.

[0008] It also includes a protective pad that covers the inner wall of the slot, which prevents the wheel and the clamp body from directly contacting each other and ensures that the wheel will not wear out during hoisting.

[0009] Furthermore, the protective pad is an aluminum alloy pad.

[0010] Furthermore, the aluminum alloy pad is detachably mounted on the inner wall of the slot by screws.

[0011] Furthermore, the bottom of the clamp body is provided with a radially outward protruding locking platform, which forms the locking groove with the clamp body.

[0012] Furthermore, the card platform and the fixture body are integrally formed.

[0013] Furthermore, the sliding expansion pin is connected to the two clamp bodies via a limiting member.

[0014] Furthermore, the limiting member includes: a pin that passes sequentially through the clamp body, the sliding expansion pin, and another clamp body from one side.

[0015] Furthermore, it also includes: a connecting rope, one end of which is fixedly connected to the clamp body, and the other end of which is fixedly connected to the pin.

[0016] Furthermore, it also includes: a connector that passes sequentially through the clamp body, the sliding expansion pin, and another clamp body from one side, with both ends of the connector being pressed and connected to the two clamp bodies respectively.

[0017] Furthermore, the connecting member is a bolt, and the end of the bolt is connected to a nut that is pressed against the clamp body. The bolt has at least two bolts spaced apart along the height direction.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The wheel lifting tool provided by this utility model allows for the insertion of a sliding expansion pin between two clamp bodies, which pushes the two clamp bodies away from each other, thereby engaging the slot with the wheel. After connecting with the hook and lifting ring, the wheel can be lifted. Since the protective pad is located between the clamp body and the wheel, the clamp body does not directly contact the wheel, thus avoiding wear on the wheel during the lifting process and ensuring product quality.

[0020] The wheel lifting tool provided by this utility model has an aluminum alloy pad with high hardness and toughness, which can withstand great pressure and maintain a stable working state even under high pressure environment, resulting in good performance.

[0021] The wheel hoisting tool provided by this utility model achieves the hoisting of the wheel by engaging the groove with the wheel. Since the force point is located at the center hole of the wheel, the wheel is subjected to uniform force during hoisting, making it more stable and less prone to slippage, thus improving safety. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the wheel lifting tool of this utility model;

[0023] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0024] Figure 3 yes Figure 1 Enlarged view of region B in the middle;

[0025] Figure 4 yes Figure 1 A top view of the clamp body.

[0026] In the diagram: 1. Fixture body; 2. Sliding expansion pin; 3. Wheel; 4. Center hole; 5. Slot; 6. Lifting ring; 7. Protective pad; 8. Screw; 9. Clamping platform; 10. Limiting component; 11. Connecting rope; 12. Connecting component; 13. Nut. Detailed Implementation

[0027] Specific implementation method one: Combining Figure 1 , Figure 2 , Figure 4 This embodiment describes a clamp body 1, a sliding expansion pin 2, and a protective pad 7. The clamp body 1 has at least two clamp bodies symmetrically distributed circumferentially. The two clamp bodies 1 are adapted to be inserted into the central hole 4 of the wheel 3. Each clamp body 1 is provided with at least a slot 5 that engages with the bottom surface of the wheel 3 and the inner surface of the central hole 4. In this embodiment, the number of clamp bodies 1 is two. This is not a limitation. The number of clamp bodies 1 can be increased according to the actual situation to ensure that they are symmetrically distributed.

[0028] The top of the sliding expansion pin 2 is equipped with a lifting ring 6, which is used to connect with the hook of the lifting equipment. The sliding expansion pin 2 is suitable for insertion between two clamp bodies 1 and connection with the two clamp bodies 1, thereby pushing the two clamp bodies 1 away from each other to achieve the engagement of the slot 5 and the wheel 3. The protective pad 7 covers the inner wall of the slot 5, and the protective pad 7 prevents the wheel 3 from directly contacting the clamp body 1, ensuring that the wheel 3 will not wear during the lifting process. When the sliding expansion pin 2 is inserted between the two clamp bodies 1, the two clamp bodies 1 can be pushed away from each other, thereby making the slot 5 engage with the wheel 3. After connecting the hook and the lifting ring 6, the wheel 3 can be lifted. Since the protective pad 7 is located between the clamp body 1 and the wheel 3, the clamp body 1 will not directly contact the wheel 3, thus avoiding wear on the wheel 3 during the lifting process, thereby ensuring product quality.

[0029] Specific Implementation Method Two: Combining Figure 1 , Figure 2In this embodiment, the protective pad 7 is an aluminum alloy pad. Aluminum alloy pads have high hardness and toughness, can withstand high pressure, and can maintain a stable working state even under high pressure environments, resulting in good performance. Of course, the above description is not limiting; in some alternative embodiments, the protective pad 7 may also be a rubber pad, etc. Other components and connections are the same as in specific embodiment one.

[0030] Specific implementation method three: Combining Figure 2 In this embodiment, the aluminum alloy pad is detachably mounted on the inner wall of the slot 5 using screws 8. This detachability facilitates replacement and makes maintenance more convenient. However, this description is not limiting. In some alternative embodiments, the aluminum alloy pad may be embedded in or adhered to the inner wall of the slot 5. Other components and connections are the same as in Specific Embodiment Two.

[0031] Specific implementation method four: Combination Figure 2 , Figure 4 In this embodiment, the bottom of the clamp body 1 has a radially outward protruding clamping platform 9. The clamping platform 9 and the clamp body 1 form a clamping groove 5. The groove 5 has only a bottom wall and side walls. The bottom wall contacts the bottom surface of the wheel 3, and the side walls contact the inner surface of the central hole 4, thus enabling the lifting of the wheel 3. Both the clamping platform 9 and the outer surface of the clamp body 1 are arc-shaped, corresponding to the inner surface of the central hole 4, to ensure sufficient contact between them. Of course, the above description is not limiting. In some alternative embodiments, an outward-facing arc-shaped groove can also be formed on the outer surface of the clamp body 1. The arc-shaped groove has a top wall, side walls, and a bottom wall. The top wall of the arc-shaped groove contacts the top surface of the wheel 3, the side walls contact the inner surface of the central hole 4, and the bottom wall contacts the bottom surface of the wheel 3. Other components and connections are the same as in specific embodiment one.

[0032] Specific Implementation Method Five: Combining Figure 2 , Figure 4 In this embodiment, the clamping platform 9 and the fixture body 1 are integrally formed, resulting in higher strength and wider applicability for hoisting large wheel discs 3. However, this description is not limiting. In some alternative embodiments, the clamping platform 9 and the fixture body 1 can be separate structures connected by welding or other methods. Other components and connections are the same as in specific embodiment four.

[0033] Specific Implementation Method Six: Combination Figure 1In this embodiment, the sliding expansion pin 2 is connected to the two clamp bodies 1 via a limiting member 10. The limiting member 10 connects the sliding expansion pin 2 to the two clamp bodies 1 as a whole, preventing separation during hoisting. Of course, the above description is not limiting. In some alternative embodiments, friction plates can be provided between the sliding expansion pin 2 and the two clamp bodies 1 for frictional connection. Other components and connections are the same as in specific embodiment one.

[0034] Specific implementation method seven: Combining Figure 1 This embodiment describes a limiting member 10 comprising: a pin that passes sequentially through the clamp body 1, the sliding expansion pin 2, and another clamp body 1 from one side. The pin connects the three components horizontally, making installation and disassembly very convenient and providing good performance. Of course, the above description is not limiting. In some alternative embodiments, a groove can be formed on the outer surface of the sliding expansion pin 2, and a locking block can be slidably installed within the groove. A spring is provided between the locking block and the inner wall of the groove, and a receiving groove is provided on the clamp body 1 to mate with the locking block. When the locking block aligns with the receiving groove, it moves towards the receiving groove under the action of the spring, thereby completing the connection between the three components. Other components and connection relationships are the same as in specific embodiment six.

[0035] Specific implementation method eight: Combination Figure 1 This embodiment further includes a connecting rope 11, one end of which is fixedly connected to the clamp body 1, and the other end of which is fixedly connected to the pin. The connecting rope 11 can be a steel wire rope. When the pin is removed, it can be suspended on the clamp body 1 via the connecting rope 11, preventing the pin from being lost and making it more convenient to use. Other components and connections are the same as in specific embodiment seven.

[0036] Specific Implementation Method Nine: Combining Figure 3 This embodiment further includes a connector 12, which passes sequentially through the clamp body 1, the sliding expansion pin 2, and another clamp body 1 from one side. Both ends of the connector 12 are respectively pressed and connected to the two clamp bodies 1. The connector 12 ensures a tight connection between the three components and ensures the symmetrical distribution of the two clamp bodies 1, thus serving a fixing and correcting function. Of course, the above description is not limiting. In some alternative embodiments, a T-shaped groove may be provided on the outer surface of the clamp body 1, and a T-shaped slider may be provided on the outer surface of the sliding expansion pin 2. Other components and connection relationships are the same as any one of embodiments one through eight.

[0037] Specific Implementation Method Ten: Combining Figure 3In this embodiment, the connecting member 12 is a bolt, and the end of the bolt is connected to a nut 13 that is pressed against the clamp body 1. At least two bolts are arranged along the height direction; in this embodiment, there are two bolts. The position of the nut 13 on the bolt is adjustable, making it suitable for various lifting tools and having a wide range of applications. Of course, the above description is not limiting. In some alternative embodiments, the connecting member 12 can also be a fixed shaft, with fixed holes at both ends into which fixed pins are inserted. Other components and connections are the same as in specific embodiment nine.

[0038] The method of using this embodiment is as follows: First, insert the two clamp bodies 1 from top to bottom into the center hole 4 of the wheel 3. Then, insert the sliding expansion pin 2 between the two clamp bodies 1. The sliding expansion pin 2 will push the two clamp bodies 1 away from each other until the inner wall of the slot 5 is engaged with the wheel 3. Then, insert the pin and bolt to complete the connection between the clamp body 1 and the sliding expansion pin 2, and then the hoisting can be carried out.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wheel-mounted lifting tool, comprising: The clamp body (1) and the sliding expansion pin (2) are provided. The clamp body (1) has at least two symmetrically distributed along the circumference. The two clamp bodies (1) are adapted to be inserted into the center hole (4) of the wheel (3). Each clamp body (1) is provided with a slot (5) that engages with the bottom surface of the wheel (3) and the inner surface of the center hole (4). The top of the sliding expansion pin (2) is provided with a lifting ring (6). The sliding expansion pin (2) is adapted to be inserted between the two clamp bodies (1) and connected to the two clamp bodies (1), thereby pushing the two clamp bodies (1) away from each other to achieve the engagement of the slot (5) and the wheel (3). The feature is that it further includes: a protective pad (7) covering the inner wall of the slot (5), which prevents the wheel (3) and the clamp body (1) from directly contacting each other and ensures that the wheel (3) will not be worn during hoisting.

2. The wheel lifting tool according to claim 1, characterized in that, The protective pad (7) is an aluminum alloy pad.

3. The wheel lifting tool according to claim 2, characterized in that, The aluminum alloy pad is detachably mounted on the inner wall of the slot (5) by screws (8).

4. The wheel lifting tool according to claim 1, characterized in that, The bottom of the clamp body (1) is provided with a radially outward protruding clamping platform (9), and the clamping platform (9) and the clamp body (1) form the clamping groove (5).

5. A wheel-type hoisting tool according to claim 4, characterized in that, The card holder (9) and the fixture body (1) are integrally formed.

6. The wheel lifting tool according to claim 1, characterized in that, The sliding expansion pin (2) is connected to the two clamp bodies (1) by a limiting member (10).

7. A wheel-type hoisting tool according to claim 6, characterized in that, The limiting member (10) includes: a pin that passes sequentially through the clamp body (1), the sliding expansion pin (2), and another clamp body (1) from one side.

8. A wheel-type hoisting tool according to claim 7, characterized in that, Also includes: The connecting rope (11) is fixedly connected at one end to the clamp body (1) and at the other end to the pin.

9. A wheel-mounted lifting tool according to any one of claims 1-8, characterized in that, Also includes: A connector (12) passes sequentially through the clamp body (1), the sliding expansion pin (2), and another clamp body (1) from one side, and the two ends of the connector (12) are respectively pressed and connected to the two clamp bodies (1).

10. A wheel-type hoisting tool according to claim 9, characterized in that, The connector (12) is a bolt, and the end of the bolt is connected to a nut (13) pressed on the clamp body (1). The bolt has at least two bolts spaced apart along the height direction.

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