Rotary driving type transmission pin

Abstract

The utility model discloses a rotary driving type transmission pin which comprises a transmission pin body, an adapter assembly is arranged on the transmission pin body in a sleeved mode, a limiting assembly is arranged at the end, provided with the adapter assembly, of the transmission pin body, the adapter assembly is rotationally connected with the transmission pin body, and the limiting assembly limits the axial position of the adapter assembly on the transmission pin body. The switching assembly is prevented from falling off from the transmission pin body, the switching assembly is clamped on the chuck, and the switching assembly is driven by the transmission pin body to rotate and rotates in the chuck at the same time; the transmission pin is arranged to be the rotatable transmission pin, the switching assembly rotates on the transmission pin body, the chuck can make rotary contact with the transmission pin, the acting force is greatly reduced, abrasion is not likely to happen, the service cycle is long, cost is greatly saved, precise braking and driving can be conducted, the sizing material curling process is stable, and the service life is long. The quality and the yield of rubber products are greatly improved, the operation is stable, and the production requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of tire tread winding, in particular to a rotationally driven transmission pin. Background Art

[0002] In the tire production process, the rubber on the work vehicle needs to be curled. When the brake is started, the transmission pin contacts the chuck of the work vehicle to achieve driving and braking. The transmission pin is driven to rotate by the driving structure and is engaged with the chuck of the work vehicle to drive the chuck to rotate and reel the rubber.

[0003] At present, the transmission of the tooling vehicle is driven and stopped by direct contact between the transmission pin and the chuck, which causes frequent wear of the chuck pin and a short service life. A large number of spare parts need to be processed for replacement. The on-site operation of the tooling vehicle is extremely unstable, the on-site downtime continues to increase, and the failure rate is high, affecting the output and quality of the product. With the improvement of the quality and output requirements of rubber products, the transmission pin seriously affects the product process quality and on-site production efficiency, has poor stability, and employees complain frequently.

[0004] The traditional transmission pin and the chuck are in rigid contact, which leads to frequent wear of the transmission pin and the chuck. In particular, the transmission pin is severely worn, requiring large quantities of spare parts to be processed for replacement. The service life is short, resulting in extremely unstable curling operation. When the transmission pin is worn, it is impossible to brake accurately, causing the rolled rubber to be folded and stretched. Utility Model Content

[0005] In view of the shortcomings of the prior art, a rotationally driven transmission pin is proposed, which solves the problem that the transmission pin and the chuck are in rigid contact in the above-mentioned background technology, resulting in frequent wear of the transmission pin and the chuck, especially the transmission pin is severely worn, requiring large quantities of spare parts to be processed for replacement, and having a short service life.

[0006] In order to achieve the above purpose, the utility model proposes the following technologies to achieve it:

[0007] A rotationally driven transmission pin comprises a transmission pin body, a transfer assembly is sleeved on the transmission pin body, a limiting assembly is arranged at the end of the transmission pin body on which the transfer assembly is mounted, the transfer assembly is rotationally connected to the transmission pin body, the limiting assembly limits the axial position of the transfer assembly on the transmission pin body to prevent the transfer assembly from falling off the transmission pin body, the transfer assembly is clamped on a chuck, and the transfer assembly is driven to rotate by the transmission pin body while rotating in the chuck.

[0008] Furthermore, the transmission pin body includes an adapter portion, the adapter assembly includes an adapter sleeve, and the adapter sleeve is sleeved on the periphery of the adapter portion and is rotatably connected to the adapter portion.

[0009] Furthermore, the adapter assembly also includes a bearing, which is arranged between the adapter portion and the adapter sleeve, and the bearing is clamped inside the adapter sleeve.

[0010] Furthermore, two bearings are provided, the inner wall of the adapter sleeve protrudes toward the central axis direction to form a partition ring, the inner diameter of the partition ring is larger than the outer diameter of the adapter part, and the two bearings are respectively clamped on both sides of the partition ring.

[0011] Furthermore, the limiting assembly includes a pressure cover, which is embedded in the adapter sleeve and is detachably connected to the driving pin body.

[0012] Furthermore, the limiting assembly also includes a countersunk bolt, the pressure cover is provided with a countersunk hole matching the countersunk bolt, and the transmission pin body is provided with a threaded hole matching the countersunk bolt at one end close to the pressure cover.

[0013] Furthermore, a mounting groove is formed at the end of the adapter portion, an elastic retaining ring is installed in the mounting groove, and the elastic retaining ring abuts against the bearing.

[0014] Furthermore, the transmission pin body also includes a connecting portion, the diameter of the connecting portion is larger than the diameter of the adapter portion to form a limiting step, the adapter sleeve abuts against the limiting step, and the diameter of the adapter sleeve is equal to the diameter of the connecting portion.

[0015] Furthermore, a connecting hole is provided on a side of the connecting portion away from the adapter portion, and the connecting hole is mounted on the transmission plate through a fastener.

[0016] Compared with the prior art, the comprehensive effects brought about by the utility model include: the traditional transmission pin is set into two parts, the transmission pin body and the adapter assembly rotatably connected to the transmission pin body, and a limit assembly is also provided to prevent the adapter assembly from detaching; the traditional transmission pin is changed to a rotatable transmission pin, so that the chuck can make rotational contact with it when it contacts it, which greatly reduces the force and is not easy to wear, has a long service life, greatly saves costs, can perform precise braking and driving, the rubber curling process is relatively stable, greatly improves the quality and output of rubber products, runs smoothly, and meets production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall internal structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the transmission pin body of the utility model embodiment;

[0019] Figure 3 This is a schematic diagram of the structure of the adapter sleeve in the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the gland structure of an embodiment of the utility model.

[0021] Legend: 1. Drive pin body; 2. Adapter sleeve; 3. Pressure cover; 4. Countersunk bolt; 5. Bearing; 6. Circlip; 7. Adapter; 8. Spacer ring; 9. Connecting part. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the utility model.

[0023] In this document, terms such as "upper", "lower", "left", "right", "top", etc. that indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 4 As shown, a rotationally driven transmission pin comprises a transmission pin body 1, on which a transfer assembly is sleeved, and a limiting assembly is arranged at the end of the transmission pin body 1 where the transfer assembly is mounted, the transfer assembly is rotationally connected to the transmission pin body 1, the limiting assembly limits the axial position of the transfer assembly on the transmission pin body 1 to prevent the transfer assembly from falling off the transmission pin body 1, the transfer assembly is clamped on a chuck, and the transfer assembly is driven to rotate by the transmission pin body 1 while rotating in the chuck.

[0025] The traditional transmission pin and the chuck are in rigid contact, which leads to frequent wear of the transmission pin and the chuck, especially the transmission pin is seriously worn, and a large number of spare parts need to be processed for replacement, and the service life is short. Therefore, a rotationally driven transmission pin is designed according to the actual situation on site, and the traditional transmission pin is set into two parts, a transmission pin body 1 and a conversion assembly rotatably connected to the transmission pin body 1, and a limit assembly is also provided to prevent the conversion assembly from detaching; the traditional transmission pin is changed into a rotatable transmission pin, so that the chuck can be in rotational contact with it when it contacts it, which greatly reduces the force and is not easy to wear. It has a long service life and greatly saves costs. It can perform precise braking and driving, and the rubber curling process is relatively stable, which greatly improves the quality and output of rubber products, runs smoothly, and meets production requirements.

[0026] In the rotary driven transmission pin of this embodiment, the transmission pin body 1 includes an adapter portion 7 , and the adapter assembly includes an adapter sleeve 2 . The adapter sleeve 2 is sleeved on the periphery of the adapter portion 7 and is rotationally connected to the adapter portion 7 .

[0027] The outer periphery of the adapter sleeve 2 is clamped in the chuck of the work vehicle, and while driving the chuck to rotate, it can also rotate relative to the adapter part 7 on the transmission pin body 1, thereby reducing the wear between the adapter sleeve 2 and the chuck when the chuck is driven to rotate or brake, and the operation process is smooth, which greatly reduces the wear and replacement of the transmission pin, reduces maintenance costs, and reduces the failure rate of the winding trolley drive brake.

[0028] In the rotary driven transmission pin of this embodiment, the adapter assembly further comprises a bearing 5 , and the bearing 5 is disposed between the adapter portion 7 and the adapter sleeve 2 , and the bearing 5 is clamped inside the adapter sleeve 2 .

[0029] The bearing 5 is provided to realize the rotational connection between the adapter sleeve 2 and the adapter part 7, i.e., the drive pin body 1, so as to realize the smooth rotation of the adapter sleeve 2 on the drive pin body 1, thereby driving the chuck to run smoothly, improving the curling efficiency, and improving the production quality of rubber products.

[0030] In the rotary driven transmission pin of this embodiment, two bearings 5 ​​are provided, and the inner wall of the adapter sleeve 2 protrudes toward the central axis direction to form a partition ring 8. The inner diameter of the partition ring 8 is larger than the outer diameter of the adapter part 7, and the two bearings 5 ​​are respectively clamped on both sides of the partition ring 8.

[0031] Two bearings 5 ​​are provided to be rotatably connected to the two ends of the adapter 7 respectively, and the size of the bearings 5 ​​is reduced while matching the length of the adapter 7. A partition ring 8 is provided to limit the two bearings 5, so that the bearings 5 ​​and the adapter sleeve 2 are installed more tightly, the connection strength is improved, and the smooth operation is ensured.

[0032] In the rotary driven transmission pin of the present embodiment, the limiting assembly includes a pressure cover 3, which is embedded in the adapter sleeve 2 and is detachably connected to the transmission pin body 1; the limiting assembly also includes a countersunk bolt 4, a countersunk hole matching the countersunk bolt 4 is formed on the pressure cover 3, and a threaded hole matching the countersunk bolt 4 is formed at one end of the transmission pin body 1 close to the pressure cover 3.

[0033] The pressure cover 3 is provided to prevent the bearing 5 from being separated from the adapter part 7, so as to avoid the adapter sleeve 2 falling off and splashing from the chuck due to loosening of the bearing 5 when the transmission pin and the chuck are engaged, thereby improving the safety of the transmission pin.

[0034] In the rotary driven transmission pin of this embodiment, an installation groove is provided at the end of the adapter part 7, and an elastic retaining ring 6 is installed in the installation groove, and the elastic retaining ring 6 abuts against the bearing 5; the elastic retaining ring 6 is provided to further limit the bearing 5, improve the tightness of the bearing 5 in the adapter sleeve 2, and ensure the smooth rotation of the rotating sleeve 2.

[0035] Specifically, during assembly, first install two 6004 deep groove ball bearings on the adapter sleeve 2 and ensure that the bearings are at the bottom of the adapter sleeve 2, insert the drive pin body 1 into the 6004 deep groove ball bearing for installation, then install the shaft elastic retaining ring 6 on the drive pin body 1, apply anaerobic glue on the countersunk bolt 4, and install the pressure cover 3 on the drive pin body 1 through the countersunk bolt 4, thereby forming a rotary driven drive pin.

[0036] In the rotary driven transmission pin of this embodiment, the transmission pin body 1 also includes a connecting portion 9, the diameter of the connecting portion 9 is larger than the diameter of the adapter portion 7 to form a limiting step, the adapter sleeve 2 is against the limiting step, and the diameter of the adapter sleeve 2 is equal to the diameter of the connecting portion 9.

[0037] Different diameters are set to form a limiting step to limit the adapter sleeve 2, thereby preventing the adapter sleeve 2 from moving axially on the transmission pin body 1, ensuring stable rotation of the adapter sleeve 2, reducing the force between the transmission pin and the chuck, and realizing driving and braking, and stabilizing the production process.

[0038] In the rotary drive type transmission pin of this embodiment, a connection hole is provided on the side of the connection part 9 away from the adapter part 7, and the connection hole is mounted on the transmission disc through a fastener. The fastener penetrates the mounting hole on the transmission disc and is threaded into the connection hole to achieve a fixed connection between the transmission pin body 1 and the transmission disc, so that the transmission pin body 1 is driven to rotate by rotating the transmission disc, and the chuck of the tooling vehicle is driven to rotate and reel or stop and brake.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary drive transmission pin, characterized in that: It includes a transmission pin body, on which a transfer assembly is sleeved, a limiting assembly is arranged at the end of the transmission pin body on which the transfer assembly is mounted, the transfer assembly is rotatably connected to the transmission pin body, the limiting assembly limits the axial position of the transfer assembly on the transmission pin body to prevent the transfer assembly from falling off the transmission pin body, the transfer assembly is clamped on a chuck, and the transfer assembly is driven to rotate by the transmission pin body while rotating in the chuck.

2. A rotary drive transmission pin according to claim 1, characterized in that: The transmission pin body comprises an adapter part, and the adapter assembly comprises an adapter sleeve. The adapter sleeve is sleeved on the periphery of the adapter part and is rotatably connected with the adapter part.

3. A rotary drive transmission pin according to claim 2, characterized in that: The adapter assembly further includes a bearing, which is disposed between the adapter portion and the adapter sleeve, and is clamped inside the adapter sleeve.

4. A rotary drive transmission pin according to claim 3, characterized in that: Two bearings are provided, and the inner wall of the adapter sleeve protrudes toward the central axis direction to form a partition ring. The inner diameter of the partition ring is larger than the outer diameter of the adapter part, and the two bearings are respectively clamped on both sides of the partition ring.

5. The rotary drive transmission pin according to claim 2, characterized in that: The limiting assembly includes a pressure cover, which is embedded in the adapter sleeve and is detachably connected to the driving pin body.

6. A rotary drive transmission pin according to claim 5, characterized in that: The limiting assembly also includes a countersunk bolt, a countersunk hole matching the countersunk bolt is formed on the pressure cover, and a threaded hole matching the countersunk bolt is formed at one end of the transmission pin body close to the pressure cover.

7. The rotary drive transmission pin according to claim 3, characterized in that: An installation groove is formed at the end of the adapter portion, an elastic retaining ring is installed in the installation groove, and the elastic retaining ring abuts against the bearing.

8. The rotary drive transmission pin according to claim 2, characterized in that: The transmission pin body also includes a connecting portion, the diameter of which is larger than the diameter of the adapter portion to form a limiting step, the adapter sleeve abuts against the limiting step, and the diameter of the adapter sleeve is equal to the diameter of the connecting portion.

9. The rotary drive transmission pin according to claim 8, characterized in that: A connecting hole is provided on one side of the connecting portion away from the adapter portion, and the connecting hole is mounted on the transmission plate through a fastener.

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