Axial guide key positioning device of elastic sleeve

Abstract

The utility model discloses an axial guide key positioning device of an elastic sleeve, which relates to the technical field of elastic sleeve installation and comprises an elastic sleeve and a connecting mechanism. The connecting mechanism comprises a plurality of groups of axial guide keys mounted on the winding drum shaft in a circular array and a connecting rod for mounting the axial guide keys to the end part of the winding drum shaft; a plurality of groups of guide key grooves assembled with the axial guide keys in an inserting manner are symmetrically formed in the inner wall of the end part of the elastic sleeve; the connecting rods and the sector plates are matched to fix the axial guide keys to the drum shaft, the axial guide keys, the guide key grooves and the guide structures are used in cooperation, accurate angle alignment is not needed to connect the elastic sleeve and the drum shaft, the assembly efficiency of the elastic sleeve is improved, the multiple sets of axial guide keys and the sector plates are used in cooperation, and the assembly efficiency is improved. The contact area between the elastic sleeve and the axial guide key can be increased, so that stress distribution is uniform, the wear rate is reduced, the service life of the connecting mechanism is prolonged, and the using effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of elastic sleeve installation technology, specifically an axial guide key positioning device for elastic sleeves. Background Technology

[0002] As a core transmission component in metallurgical equipment, the drum shaft is widely used in equipment such as coilers, uncoilers, and cranes. Its design must meet the requirements of high strength, wear resistance, and dynamic stability. The drum shaft is a key piece of equipment used for winding strip in industrial production lines. Its elastic sleeve is connected to the drum shaft through a positioning structure to ensure synchronous rotation of the sleeve and the shaft.

[0003] In existing technologies, the positioning of elastic sleeves often uses several sets of radial pins. This involves machining radial holes on the inner wall of the sleeve and the shaft, and inserting pins into these holes to achieve circumferential fixation. However, this positioning method is relatively complex to install. The radial pins need to be precisely aligned with the holes on the sleeve and the shaft, requiring high machining accuracy. During assembly, the angles need to be repeatedly adjusted, which is time-consuming and labor-intensive. Furthermore, stress concentration occurs on the radial pins during use, with the force concentrated on a local contact surface. Long-term use can easily lead to wear on the pins or hole walls, reducing positioning accuracy and requiring frequent replacements. This cannot meet people's needs. Therefore, an axial guide key positioning device for elastic sleeves is needed. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes an axial guide key positioning device for an elastic sleeve.

[0005] An axial guide key positioning device for an elastic sleeve, applied to a drum shaft, includes: an elastic sleeve aligned and connected to the drum shaft, and a connecting mechanism connecting the elastic sleeve to the drum shaft; wherein, the connecting mechanism includes several sets of axial guide keys arranged in a circular array on the drum shaft and a connecting rod for mounting the axial guide keys to the end of the drum shaft; the inner wall of the end of the elastic sleeve is symmetrically provided with several sets of guide keyways for insertion and assembly with the axial guide keys.

[0006] As a further embodiment of this utility model: the axial guide key is configured as a long strip structure; the outer wall of the drum shaft is symmetrically provided with several sets of mounting grooves that fit with the axial guide key along the circumferential direction.

[0007] As a further embodiment of this utility model, a guide structure is provided at one end of the axial guide key that is inserted into the guide keyway.

[0008] As a further embodiment of this utility model: the guide structure is configured as an inclined groove surface symmetrically opened at one end of the axial guide key, which facilitates the insertion of the axial guide key into the guide key groove, thereby improving the installation efficiency between the elastic sleeve and the drum shaft; one end of the guide key groove abuts against one end of the guide key groove.

[0009] As a further aspect of this utility model: the depth dimensions of both the guide keyway and the mounting groove are set to 1 / 3 to 1 / 2 of the height dimension of the axial guide key, to ensure that the guide key does not protrude from the contact surface after being embedded.

[0010] As a further embodiment of this invention, the number of the axial guide keys in several groups is set to 2-4 to balance the force and improve the torsional resistance.

[0011] As a further embodiment of this utility model: the drum shaft is provided with a plurality of fan-shaped plates for installing axial guide keys; the outer wall of the fan-shaped plates is in contact with the inner wall of the elastic sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This utility model uses a connecting mechanism to fix the axial guide key to the drum shaft. The axial guide key, guide keyway and guide structure work together to connect the elastic sleeve and the drum shaft without precise angle alignment, which improves the assembly efficiency of the elastic sleeve. Several sets of axial guide keys and sector plates work together to increase the contact area between the elastic sleeve and the axial guide key, so that the stress distribution is uniform, the wear rate is reduced, and the service life and performance of the connecting mechanism are improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0015] Figure 2 This is a partial structural diagram of the elastic sleeve and connecting mechanism in this utility model.

[0016] Figure 3 This is a partial structural diagram of the axial guide key and connecting rod in this utility model.

[0017] Figure 4 This is a partial structural diagram of the elastic sleeve in this utility model, which is fixed by a radial pin.

[0018] In the diagram: 1. Drum shaft; 2. Elastic sleeve; 3. Axial guide key; 4. Connecting rod; 5. Guide keyway; 6. Guide structure; 7. Sector plate; 8. Radial pin. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] Example 1

[0021] Please see Figure 1 - Figure 4 This application provides an axial guide key positioning device for an elastic sleeve, applied to a drum shaft 1, comprising: an elastic sleeve 2 aligned and connected to the drum shaft 1, and a connecting mechanism connecting the elastic sleeve 2 to the drum shaft 1; wherein, the connecting mechanism includes several sets of axial guide keys 3 arranged in a circular array on the drum shaft 1 and a connecting rod 4 for mounting the axial guide keys 3 to the end of the drum shaft 1; the inner wall of the end of the elastic sleeve 2 is symmetrically provided with several sets of guide keyways 5 for inserting and assembling with the axial guide keys 3. In use, several sets of axial guide keys 3 are fixed to the drum shaft 1, the elastic sleeve 2 is aligned with the drum shaft 1, and the axial guide keys 3 are inserted into the guide keyways 5 on the elastic sleeve 2 to assemble the elastic sleeve 2 and the drum shaft 1, thereby improving the assembly efficiency of the elastic sleeve 2 and the drum shaft 1.

[0022] In this utility model, the axial guide key 3 is configured as a long strip structure; the outer wall of the drum shaft 1 is symmetrically provided with several sets of mounting grooves that fit with the axial guide key 3 along the circumferential direction; the axial guide key 3 is provided with a connecting hole groove that matches the connecting rod 4; the connecting rod 4 is installed on the connecting hole groove, so that one end of the connecting rod 4 is located inside the axial guide key 3, avoiding interference during the process of inserting the axial guide key 3 into the guide key groove 5.

[0023] In this invention, a guide structure 6 is provided at one end of the axial guide key 3 that is inserted into the guide key groove 5. The guide structure 6 facilitates the guiding insertion of the axial guide key 3.

[0024] In this utility model, the guide structure 6 is configured as an inclined groove surface symmetrically opened at one end of the axial guide key 3, which facilitates the insertion of the axial guide key 3 into the guide key groove 5, thereby improving the installation efficiency between the elastic sleeve 2 and the drum shaft 1; one end of the guide key groove 5 abuts against one end of the guide key groove 5.

[0025] In this invention, the depth dimensions of both the guide keyway 5 and the mounting groove are set to 1 / 3 to 1 / 2 of the height dimension of the axial guide key 3 to ensure that the guide key does not protrude from the contact surface after being embedded.

[0026] In this invention, the number of several sets of axial guide keys 3 is set to 2-4 to balance the force and improve the torsional resistance.

[0027] In this invention, the roller shaft 1 is provided with several sets of sector plates 7 for installing axial guide keys 3; the outer wall of the sector plate 7 is in contact with the inner wall of the elastic sleeve 2.

[0028] This application replaces the traditional radial pin 8 with an axial guide key 3, solving the problems of complex installation, easy wear, and poor dynamic adaptability.

[0029] In summary, the connecting rod 4 installs the axial guide key 3 onto the drum shaft 1, aligns the elastic sleeve 2 with the drum shaft 1, inserts the axial guide key 3 into the guide keyway 5, connects the elastic sleeve 2 to the drum shaft 1, and then uses bolts to fix the drum shaft 1 and the elastic sleeve 2 together.

[0030] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. An axial guide key positioning device for an elastic sleeve, applied to a drum shaft (1), characterized in that, include: An elastic sleeve (2) that is aligned with and connected to the drum shaft (1) and a connecting mechanism that connects the elastic sleeve (2) to the drum shaft (1); The connecting mechanism includes several sets of axial guide keys (3) arranged in a circular array on the drum shaft (1) and a connecting rod (4) for mounting the axial guide keys (3) to the end of the drum shaft (1); The inner wall of the end of the elastic sleeve (2) is symmetrically provided with several sets of guide keyways (5) that are inserted and assembled with the axial guide key (3).

2. The axial guide key positioning device for the elastic sleeve according to claim 1, characterized in that, The axial guide key (3) is configured as a long strip structure; The outer wall of the drum shaft (1) is symmetrically provided with several sets of mounting grooves that fit with the axial guide key (3) along the circumferential direction.

3. The axial guide key positioning device for the elastic sleeve according to claim 1, characterized in that, The axial guide key (3) is inserted into the guide keyway (5) and a guide structure (6) is provided at one end.

4. The axial guide key positioning device for the elastic sleeve according to claim 3, characterized in that, The guide structure (6) is configured as an inclined groove surface symmetrically opened at one end of the axial guide key (3); One end of the guide keyway (5) abuts against the other end of the guide keyway (5).

5. The axial guide key positioning device for the elastic sleeve according to claim 2, characterized in that, The depth dimensions of the guide keyway (5) and the mounting groove are both set to 1 / 3 to 1 / 2 of the height dimension of the axial guide key (3).

6. The axial guide key positioning device for the elastic sleeve according to claim 1, characterized in that, The number of axial guide keys (3) in several groups is set to 2-4.

7. The axial guide key positioning device for the elastic sleeve according to claim 1, characterized in that, The drum shaft (1) is provided with several sets of fan-shaped plates (7) for installing axial guide keys (3); The outer wall of the sector plate (7) is fitted with the inner wall of the elastic sleeve (2).

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