A steel wire rope pre-deformer connecting device capable of gap compensation

Abstract

This utility model relates to the field of wire rope production and processing technology, and in particular to a wire rope pre-deformer connecting device with gap compensation capability. The front end of the connecting shaft serves as a universal joint connection end to connect to the universal joint and connect to special equipment through the universal joint. The rear end is provided with an external thread; the front end of the rear shaft is provided with an internal thread, which connects to the rear end thread of the connecting shaft through the internal thread; the rear end of the rear shaft is used to connect to the wire rope pre-deformer; the connecting device achieves connection with special equipment through the universal joint, adding a gap compensation function, so that the runout tolerance of the pre-deformer will not be transmitted to the special equipment, and will not cause the equipment to shake; it can also solve the problem of fatigue stress concentration and connection fracture at the connection point in the existing rigid connection, ensuring long-term stable operation of the equipment; the length of the connecting device can be adjusted by adjusting the thread between the rear shaft and the connecting shaft to meet the distance requirements of different pre-deformers during use, improving versatility and practicality.

Description

Technical Field

[0001] This utility model relates to the field of wire rope production and processing technology, and in particular to a wire rope pre-deformer connection device capable of gap compensation. Background Technology

[0002] Wire rope pre-deformers need to be connected to a rope-forming machine during use, typically secured with high-strength bolts. Therefore, the pre-deformer and the rope-forming machine must be concentric. However, the concentricity of the rope-forming machine often has a runout of approximately ±5mm. Normally, the pre-deformer and the pressure plate are separate, so a small amount of equipment runout during rope forming will not affect production smoothness. However, for some special products, the pre-deformer needs to be connected to special tooling equipment. In this case, if the pre-deformer is rigidly connected to the special equipment via a connecting device, the following problems will arise:

[0003] First, the runout tolerance of the pre-deformer will be transmitted to special equipment, causing the equipment to shake, which will affect production stability and product quality.

[0004] Secondly, the connection device is connected to the pre-deformer and special equipment by axle pins or bolts. When the pre-deformer is running, there is a risk of fatigue stress concentration and connection failure at the connection point.

[0005] Third, the fixed length of the rigid connection method cannot meet the distance requirements when connecting the pre-deformer with special equipment. The length is not adjustable, resulting in poor versatility and flexibility. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a wire rope pre-deformer connection device with gap compensation, so as to solve the problems of rigid connection between the pre-deformer and special equipment in the existing technology, which has problems such as equipment shaking, fatigue stress concentration at the connection point, and non-adjustable length of the connection device.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] A wire rope pre-deformer connection device capable of gap compensation, comprising:

[0009] The connecting shaft has a front end that serves as a universal joint connection end to connect to the universal joint and connect to special equipment through the universal joint. The rear end is provided with an external thread. The universal joint, the connecting shaft, and the special equipment are fitted with a key to achieve clearance fit.

[0010] The rear axle has an internal thread at its front end, which connects to the rear end of the connecting shaft via the internal thread; the rear end of the rear axle is used to connect to the wire rope pre-deformer.

[0011] As a further implementation, the rear end of the rear axle is provided with a flange, on which through holes are evenly distributed, and the flange is fixedly connected to the wire rope pre-deformer by a fastener.

[0012] As a further implementation, the rear axle has a sleeve-like structure, and a first groove is provided on the side wall of the rear axle near the rear end.

[0013] As a further implementation, the internal thread is located near the front end of the rear axle, and a threaded hole is also provided at the front end of the rear axle.

[0014] As a further implementation, the external thread is located near the rear end of the connecting shaft.

[0015] As a further implementation, a slot is provided at the rear end of the connecting shaft, the slot extends along the length of the connecting shaft, and the slot is located at the external thread position.

[0016] As a further implementation, the threaded hole is used to mate with a fastener, with the bottom end of the fastener passing through the threaded hole and engaging with the slot.

[0017] As a further implementation, the length of the slot is less than the extension length of the external thread.

[0018] As a further implementation, the connecting shaft is provided with two sets of symmetrically arranged platforms, and the connecting shaft is provided with a second slot.

[0019] As a further implementation, both the connecting shaft and the rear shaft are cylindrical structures. The universal joint connecting end is open and has a slot at the end. The connection end structure of the special equipment and the universal joint is the same as the connection end structure of the universal joint. The universal joint includes a set of annular structures with keys on both sides for slot engagement, and there is a movable gap between the slot and the key.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model's connecting device achieves connection with special equipment through a universal joint, adding a clearance compensation function. The runout tolerance of the pre-deformer will not be transmitted to the special equipment, preventing equipment shaking. Furthermore, it solves the problems of fatigue stress concentration and connection fracture at the connection point in existing rigid connections, ensuring long-term stable operation of the equipment. In addition, the length of the connecting device is adjustable via an adjusting thread between the rear axle and the connecting shaft. Once adjusted to a suitable length, it is fixed with two set screws to meet the distance requirements of different pre-deformers during use, improving versatility and practicality. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] Figure 1 This is a schematic diagram of the structure of the wire rope pre-deformer connection device in an embodiment of this utility model;

[0024] Figure 2 This is a schematic diagram of the rear axle structure in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the connecting shaft in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the universal joint structure in an embodiment of this utility model;

[0027] Figure 5 This is a simplified diagram showing the connection between the wire rope pre-deformer and the special equipment in this embodiment of the utility model.

[0028] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0029] The components are: 1. rear axle, 2. connecting shaft, 3. universal joint, and 4. set screw.

[0030] 11. Flange; 111. Through hole; 12. Internal thread; 13. Threaded hole; 14. First groove;

[0031] 21. Slot; 22. External thread; 23. Platform; 24. Second slot; 25. Universal joint connection end;

[0032] 5. Connecting device, 6. Special equipment, 7. Pressure plate, 8. Pre-deformer. Detailed Implementation

[0033] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0034] Example 1

[0035] In a typical embodiment of this utility model, refer to Figures 1-5 As shown, a wire rope pre-deformer connection device capable of gap compensation includes a rear shaft 1, a connecting shaft 2, and a universal joint 3 connected in sequence.

[0036] The front end of the connecting shaft 2 serves as the connecting end of the universal joint 3 to connect to the universal joint 3 and to the special equipment 6 through the universal joint 3. The rear end is provided with an external thread 22. The front end of the rear shaft 1 is provided with an internal thread 12, which is threaded to the rear end of the connecting shaft 2 through the internal thread 12. The rear end of the rear shaft 1 is used to connect to the wire rope pre-deformer.

[0037] like Figure 1 and Figure 2 As shown, the rear axle has a sleeve-shaped structure. The rear end of the rear axle 1 is provided with a flange 11. A ring of through holes 111 are evenly distributed on the flange. The flange 11 is fixedly connected to the wire rope pre-deformer through a fastener. The fastener can be a bolt. The bolt passes through the through hole 111 and is fixedly connected to the wire rope pre-deformer.

[0038] like Figure 2 As shown, the internal thread 12 is located near the front end of the rear axle 1. A threaded hole 13 is also provided at the front end of the rear axle 1. The internal thread 12 extends inside the rear axle to the front end of the rear axle. Preferably, the length of the internal thread 12 is half the length of the rear axle.

[0039] At the corresponding internal thread position, the rear axle 1 side wall is provided with two symmetrical threaded holes 13 for fixing.

[0040] To facilitate observation when the steel strand passes through, a single-sided through slot is milled on the rear axle. Specifically, a first slot 14 is provided on the side wall of the rear axle near the rear end. The first slot 14 passes through the rear axle and is located between the flange and the middle of the rear axle.

[0041] like Figure 3 As shown, the external thread 22 is located near the rear end of the connecting shaft 2, and the external thread 22 has a predetermined length on the connecting shaft 2, preferably half the length of the connecting shaft 2. The rear end of the external thread 22 is aligned with the rear end of the connecting shaft, and the front end extends to the middle of the connecting shaft 2.

[0042] In this embodiment, the connecting shaft 2 and the rear shaft 1 are connected by external thread and internal thread 12. By rotating the connecting shaft 2, the overall length of the connecting shaft 2 and the rear shaft 1 after connection can be adjusted. This solves the problems of fixed length in existing hard connection methods, which cannot meet the distance requirements when connecting the pre-deformer with special equipment, and the length is not adjustable, resulting in poor versatility and flexibility.

[0043] To prevent relative movement between connecting shaft 2 and rear shaft 1 during operation, such as Figure 3 As shown, a groove 21 is provided at the rear end of the connecting shaft. The groove 21 is located at the external thread 22. The groove 21 extends along the length of the connecting shaft and has a groove structure of a certain length. The length of the groove 21 is less than the extension length of the external thread 22.

[0044] like Figures 1-3 As shown, when the connecting shaft 2 and the rear shaft 1 are connected by threads, a fastener is used to engage with the threaded hole 13. The fastener is a set screw 4, and the bottom end of the set screw 4 passes through the threaded hole and engages with the slot 21, which can prevent the connecting shaft 2 from rotating relative to the rear shaft 1 and thus fix the connecting shaft 2.

[0045] It is understandable that the outer diameter of the set screw 4 is matched with the cross-sectional width of the slot 21, so that the connecting shaft 2 cannot rotate after the set screw 4 is engaged in the slot 21.

[0046] A second slot 24 is provided between the middle position and the front end of the connecting shaft 2. The structure of the second slot 24 is the same as that of the first slot 14, and its purpose is to facilitate the observation of the steel strand in the middle.

[0047] Two sets of symmetrically arranged platforms 23 are milled on the outer cylindrical surface of the connecting shaft 2. The line connecting the two platforms 23 is perpendicular to the extension direction of the second slot 24. The platform 23 is a slot-shaped structure with a flat bottom. The purpose of setting the two platforms 23 is to assist the connecting shaft 2 in adjusting the thread fit length with the rear shaft 1.

[0048] In this embodiment, the front end of the connecting shaft is a universal joint connecting end 25, which is connected to the universal joint 3 by a key. The universal joint 3 is located between the connecting shaft 2 and the special equipment 6. The connection through the key structure is a clearance fit, which is the key part to achieve clearance compensation.

[0049] like Figures 2-4 As shown, both the connecting shaft 2 and the rear shaft 1 are cylindrical structures. The universal joint connecting end 25 has a central opening for the steel strand to pass through. The universal joint connecting end 25 is also provided with a groove that extends in a straight line and has an opening located in the middle of the groove. The connection end structure of the special equipment and the universal joint is the same as the structure of the universal joint connecting end.

[0050] like Figure 4 As shown, the universal joint 3 includes a set of annular structures with a central hole for steel strands to pass through. Keys are provided on both sides of the annular structures for slot engagement, and there is an movable gap between the slots and the keys to achieve gap compensation.

[0051] In this embodiment, the connecting device 5 connects to the special equipment via the universal joint 3, enabling gap compensation. The runout tolerance of the pre-deformer is not transmitted to the special equipment, preventing equipment shaking. Furthermore, it solves the problems of fatigue stress concentration and connection fracture at the connection point in existing rigid connections.

[0052] By adding a clearance compensation function, the runout tolerance of the pre-deformer 8 can be prevented from being directly transmitted to the special equipment 6. Simultaneously, the traditional connection method is changed from a pin connection to a key connection, improving connection strength, reducing the risk of fatigue stress concentration, and thus reducing the probability of breakage of connecting components, ensuring long-term stable operation of the equipment. The length of the connecting device 5 is adjustable via an adjusting thread between the rear shaft and the connecting shaft. Once adjusted to a suitable length, it is fixed with two set screws to meet the distance requirements of different pre-deformers during use, improving versatility and practicality. Figure 5 As shown, the pressure strip 7 is located on the side of the special equipment away from the pre-deformer.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wire rope pre-deformer connection device capable of gap compensation, characterized in that, include: The connecting shaft has a front end that serves as a universal joint connection end to connect to the universal joint and connect to special equipment through the universal joint. The rear end is provided with an external thread. The universal joint, the connecting shaft, and the special equipment are fitted with a key to achieve clearance fit. The rear axle has an internal thread at its front end, which connects to the rear end of the connecting shaft via the internal thread; the rear end of the rear axle is used to connect to the wire rope pre-deformer.

2. The wire rope pre-deformer connection device capable of gap compensation according to claim 1, characterized in that, The rear axle is provided with a flange, which has through holes evenly distributed on it. The flange is fixedly connected to the wire rope pre-deformer by a fastener.

3. The wire rope pre-deformer connection device capable of gap compensation according to claim 1, characterized in that, The rear axle has a sleeve-like structure, and a first groove is provided on the side wall of the rear axle near the rear end.

4. The wire rope pre-deformer connection device capable of gap compensation according to claim 3, characterized in that, The internal thread is located near the front end of the rear axle, and a threaded hole is also provided at the front end of the rear axle.

5. A wire rope pre-deformer connection device capable of gap compensation according to claim 4, characterized in that, The external thread is located near the rear end of the connecting shaft.

6. A wire rope pre-deformer connection device capable of gap compensation according to claim 5, characterized in that, The rear end of the connecting shaft is provided with a slot that extends along the length of the connecting shaft and is located at the external thread position.

7. A wire rope pre-deformer connection device capable of gap compensation according to claim 6, characterized in that, The threaded hole is used to mate with the fastener, and the bottom end of the fastener passes through the threaded hole and engages with the slot.

8. A wire rope pre-deformer connection device capable of gap compensation according to claim 6, characterized in that, The length of the slot is less than the extension length of the external thread.

9. A wire rope pre-deformer connection device capable of gap compensation according to claim 1, characterized in that, The connecting shaft is provided with two sets of symmetrically arranged platforms, and the connecting shaft is provided with a second slot.

10. A wire rope pre-deformer connection device capable of gap compensation according to claim 1, characterized in that, Both the connecting shaft and the rear shaft are cylindrical structures. The universal joint connecting end is open and has a slot at the end. The connection end structure of the special equipment and the universal joint is the same as the connection end structure of the universal joint. The universal joint includes a set of annular structures with keys on both sides for slot engagement, and there is a movable gap between the slot and the key.

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