Chain drive roller set axial locking device

Abstract

The utility model relates to chain drive roller, and disclose a kind of chain drive roller barrel group axial locking device, including mounting bracket, the mounting bracket is fixedly connected with output mechanism, the mounting bracket is fixedly connected with second sprocket The second sprocket is provided with self-locking nut assembly, fixedly connected with axial locking mechanism, the axial locking mechanism is engaged with shaft sleeve, the axial locking mechanism includes second motor, first gear, sleeve rod, inner rod, mounting bracket, telescopic component, second gear, sliding slot, sliding rod, rack, wherein the second motor is fixed on one of bottom plate, the output end of the second motor is fixedly connected with first gear, the first gear penetrates bottom plate, and is rotatably connected with bottom plate, the first gear is fixedly connected with sleeve rod, the sleeve rod is connected with inner rod, the other end of the inner rod away from sleeve rod is fixedly connected with another first gear: make axial locking device flexibility better, can adapt to different diameter and different length shaft sleeve.

Description

Technical Field

[0001] This utility model relates to chain drive rollers, and more specifically to an axial locking device for a chain drive roller assembly. Background Technology

[0002] Chain-driven roller assemblies consist of sprockets, chains, and parallel rollers. The chain meshes and drives the rollers to rotate synchronously, achieving smooth material conveying. They are widely used in logistics sorting, packaging, and conveying, offering advantages such as high transmission efficiency, stable operation, wear resistance, and low noise. An axial locking device is required when using chain-driven roller assemblies.

[0003] The existing axial locking device has poor flexibility and cannot adapt to bushings of different diameters and lengths. In addition, the existing axial locking device relies on screws to fix the plastic sprocket. Since the plastic sprocket is made of soft material, it cannot keep the screw in a preload state for a long time. Furthermore, the rotation of the parts during equipment use further reduces the screw preload, so the screw is often found to be loose. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an axial locking device for a chain-driven roller assembly to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: an axial locking device for a chain-driven roller assembly, comprising a mounting frame, an output mechanism fixedly connected to the mounting frame, a second sprocket fixedly connected to the mounting frame, the second sprocket being provided with a self-locking nut assembly, and an axial locking mechanism fixedly connected to the mounting frame. The axial locking mechanism engages with a bushing. The axial locking mechanism includes a second motor, a first gear, a sleeve rod, an inner rod, a mounting bracket, a telescopic component, a second gear, a slide groove, a slide rod, and a rack. The second motor is fixedly mounted on one of the base plates. The output end of the second motor is fixedly connected to the first gear, which passes through the base plate and is rotatably connected to it. The first gear is fixedly connected to a sleeve rod, which engages with an inner rod. The end of the inner rod away from the sleeve rod is fixedly connected to another first gear. The first gear is rotatably connected to a mounting bracket, which is fixedly connected to the base plate. The mounting bracket is slidably connected to a telescopic component, and a slide rod is fixedly connected to the top edge of the telescopic component. The first gear engages with a second gear, and the second gear has a slide groove that is slidably connected to the slide rod. A ring-shaped rack is fixedly connected to the side wall of the telescopic component away from the slide rod.

[0006] Furthermore, the mounting frame includes a mounting plate, support legs, and a rotating plate, wherein the support legs are fixedly connected to the bottom end of the mounting plate, and symmetrical rotating plates are rotatably connected to the two side walls of the mounting plate. The rotating plates are fixedly connected to a second sprocket, and the second sprocket is fixedly connected to a base plate.

[0007] Furthermore, the output mechanism includes a first motor and a first sprocket, wherein the first motor is fixedly connected to the side wall of the mounting plate, and the output end of the first motor is fixedly connected to the first sprocket, which passes through the side wall of the mounting plate and is rotatably connected to the mounting plate.

[0008] Furthermore, the self-locking nut assembly includes a bolt and a washer, the bolt passing through the rotating plate and the second sprocket, and the washer being movably fitted onto the bolt.

[0009] Furthermore, the self-locking nut assembly includes a hexagonal nut and a cotter pin, the bolt is threadedly connected to the hexagonal nut, and the cotter pin passes through the bolt and the hexagonal nut.

[0010] Furthermore, a retaining strip corresponding to the rack is fixedly connected to the inner wall of the bushing.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model, by providing a self-locking nut assembly, prevents the screw from being in a pre-tightened state for a long time even if the plastic sprocket material is relatively soft. This prevents the parts from being in rotational motion during equipment use, thus preventing the self-locking nut assembly from loosening.

[0013] 2. This utility model, by providing an axial locking mechanism, makes the axial locking device more flexible and can adapt to bushings of different diameters and lengths. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the axial locking mechanism of this utility model.

[0016] Figure 3 This is a cross-sectional schematic diagram of the axial locking mechanism of this utility model.

[0017] Figure 4 For the present utility model Figure 1 Schematic diagram at point A in the middle.

[0018] Figure 5 For the present utility model Figure 2 Schematic diagram at point B in the middle.

[0019] The attached figures are labeled as follows: 1. Mounting bracket; 101. Mounting plate; 102. Support leg; 103. Rotating plate; 2. Output mechanism; 201. First motor; 202. First sprocket; 3. Second sprocket; 4. Self-locking nut assembly; 401. Bolt; 402. Hex nut; 403. Washer; 404. Cotter pin; 5. Bushing; 6. Axial locking mechanism; 601. Second motor; 602. First gear; 603. Sleeve rod; 604. Inner rod; 605. Mounting bracket; 606. Telescopic assembly; 607. Second gear; 608. Slide groove; 609. Slide rod; 610. Rack; 611. Base plate. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The axial locking device for chain drive roller group involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Reference Figure 1-5 This utility model provides an axial locking device for a chain-driven roller assembly, including a mounting frame 1, an output mechanism 2 fixedly connected to the mounting frame 1, a second sprocket 3 fixedly connected to the mounting frame 1, a self-locking nut assembly 4 provided on the second sprocket 3, an axial locking mechanism 6 fixedly connected to the mounting frame 1, and a bushing 5 engaged with the axial locking mechanism 6.

[0022] Mounting frame 1 includes mounting plate 101, support legs 102, and rotating plate 103. The support legs 102 are fixedly connected to the bottom end of mounting plate 101. The two side walls of mounting plate 101 are rotatably connected to symmetrical rotating plates 103. The rotating plate 103 is fixedly connected to a second sprocket 3. The second sprocket 3 is fixedly connected to a base plate 611.

[0023] The output mechanism 2 includes a first motor 201 and a first sprocket 202. The first motor 201 is fixedly connected to the side wall of the mounting plate 101, and the first sprocket 202 is fixedly connected to the output end of the first motor 201. The first sprocket 202 passes through the side wall of the mounting plate 101 and is rotatably connected to the mounting plate 101.

[0024] The self-locking nut assembly 4 includes a bolt 401, a hexagonal nut 402, a washer 403, and a cotter pin 404. The bolt 401 passes through the rotating plate 103 and the second sprocket 3. The washer 403 is movably fitted onto the bolt 401, which can reduce vibration and extend the machine's service life during operation. The bolt 401 is threadedly connected to the hexagonal nut 402, and the cotter pin 404 passes through both the bolt 401 and the hexagonal nut 402. During installation, the bolt 401 is passed through the rotating plate 103 and the second sprocket 3, then the washer 403 is fitted onto the bolt 401, and the hexagonal nut 404 is then inserted. Tighten 402. Drill a horizontal hole matching the diameter of the cotter pin 404 at the exposed end of the bolt 401. Pass the cotter pin 404 through the horizontal hole, ensuring that the pin tail is fully exposed. Use a tool to bend both ends of the cotter pin 404 outwards so that it fits against the surface of the hexagonal nut 402, forming a mechanical lock. This increases the locking of the self-locking nut assembly 4. Even if the plastic sprocket material is relatively soft and cannot keep the screw in a preload state for a long time, it prevents the parts from being in rotation during equipment use and further reduces the screw preload, thus preventing the self-locking nut assembly 4 from loosening.

[0025] The axial locking mechanism 6 includes a second motor 601, a first gear 602, a sleeve rod 603, an inner rod 604, a mounting bracket 605, a telescopic component 606, a second gear 607, a slide groove 608, a slide rod 609, and a rack 610. The second motor 601 is fixed to one of the base plates 611. The output end of the second motor 601 is fixedly connected to the first gear 602, which passes through the base plate 611 and is rotatably connected to it. The first gear 602 is fixedly connected to the sleeve rod 603, which engages with the inner rod 604. One end away from the sleeve rod 603 is fixedly connected to another first gear 602. The first gear 602 is rotatably connected to a mounting bracket 605. The mounting bracket 605 is fixedly connected to the base plate 611. The mounting bracket 605 is slidably connected to a telescopic component 606. A slide rod 609 is fixedly connected to the top edge of the telescopic component 606. The first gear 602 meshes with a second gear 607. The second gear 607 has a sliding groove 608. The sliding groove 608 is slidably connected to the slide rod 609. A ring-shaped rack 610 is fixedly connected to the side wall of the telescopic component 606 away from the slide rod 609.

[0026] The inner wall of the bushing 5 is fixedly connected with a retaining strip corresponding to the rack 610. The bushing 5 is fitted into the axial locking mechanism 6, and the axial locking mechanism 6 is pulled to a suitable length. The second motor 601 is started to drive the first gear 602 fixedly connected to its output end to rotate. The rotation of the first gear 602 drives the sleeve rod 603 to rotate. The inner rod 604, which is engaged with the sleeve rod 603, rotates accordingly. The rotation of the inner rod 604 drives the other first gear 602 fixedly connected to the inner rod 604 to rotate. At the same time, the rotation of the first gear 602 will drive the second gear 607 meshing with it to rotate. The telescopic component 606, which is slidably connected to the slide groove 608, extends outward. The rack 610, which is fixedly connected to the telescopic component 606, is locked with the retaining strip, making the axial locking device more flexible and adaptable to bushings 5 ​​of different diameters and lengths.

[0027] The working principle of this utility model:

[0028] First: During installation, thread the bolt 401 through the rotating plate 103 and the second sprocket 3, then put the washer 403 into the bolt 401, and tighten the hexagonal nut 402.

[0029] Secondly: Drill a transverse hole matching the diameter of the cotter pin 404 at the exposed end of the bolt 401, pass the cotter pin 404 through the transverse hole, ensuring that the pin tail is fully exposed, and use a tool to bend both ends of the cotter pin 404 outwards so that it fits against the surface of the hexagonal nut 402 to form a mechanical lock, thereby increasing the locking of the self-locking nut assembly 4. Even if the plastic sprocket material is relatively soft and cannot keep the screw in a preloaded state for a long time, it prevents the parts from being in rotation during equipment use and further reducing the screw preload, thus preventing the self-locking nut assembly 4 from loosening.

[0030] Finally: Fit the bushing 5 into the axial locking mechanism 6, pull the axial locking mechanism 6 to a suitable length, start the second motor 601 to drive the first gear 602 fixedly connected to its output end to rotate. The rotation of the first gear 602 drives the sleeve rod 603 to rotate, and the inner rod 604, which is engaged with the sleeve rod 603, rotates accordingly. The rotation of the inner rod 604 drives the other first gear 602 fixedly connected to the inner rod 604 to rotate. At the same time, the rotation of the first gear 602 will drive the second gear 607 meshing with it to rotate. The telescopic component 606, which is slidably connected to the slide groove 608, extends outward, and the rack 610 fixedly connected to the telescopic component 606 is locked with the locking strip, making the axial locking device more flexible and adaptable to bushings 5 ​​of different diameters and lengths.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An axial locking device for a chain-driven roller assembly, comprising a mounting frame (1), wherein an output mechanism (2) is fixedly connected to the mounting frame (1), a second sprocket (3) is fixedly connected to the mounting frame (1), the second sprocket (3) is provided with a self-locking nut assembly (4), and an axial locking mechanism (6) is fixedly connected thereto, wherein the axial locking mechanism (6) engages with a bushing (5), characterized in that: The axial locking mechanism (6) includes a second motor (601), a first gear (602), a sleeve rod (603), an inner rod (604), a mounting bracket (605), a telescopic assembly (606), a second gear (607), a slide groove (608), a slide rod (609), and a rack (610). The second motor (601) is fixed to one of the base plates (611). The output end of the second motor (601) is fixedly connected to the first gear (602). The first gear (602) passes through the base plate (611) and is rotatably connected to it. The first gear (602) is fixedly connected to the sleeve rod (603), which engages with the inner rod (604). 04) One end away from the sleeve rod (603) is fixedly connected to another first gear (602). The first gear (602) is rotatably connected to a mounting bracket (605). The mounting bracket (605) is fixedly connected to the base plate (611). The mounting bracket (605) is slidably connected to a telescopic component (606). The top edge of the telescopic component (606) is fixedly connected to a slide rod (609). The first gear (602) meshes with a second gear (607). The second gear (607) has a sliding groove (608). The sliding groove (608) is slidably connected to the slide rod (609). The side wall of the telescopic component (606) away from the slide rod (609) is fixedly connected to a ring-shaped rack (610).

2. The axial locking device for a chain-driven roller assembly according to claim 1, characterized in that: The mounting frame (1) includes a mounting plate (101), a support leg (102), and a rotating plate (103). The support leg (102) is fixedly connected to the bottom end of the mounting plate (101). The two side walls of the mounting plate (101) are rotatably connected to symmetrical rotating plates (103). The rotating plate (103) is fixedly connected to a second sprocket (3). The second sprocket (3) is fixedly connected to a base plate (611).

3. The axial locking device for a chain-driven roller assembly according to claim 2, characterized in that: The output mechanism (2) includes a first motor (201) and a first sprocket (202). The first motor (201) is fixedly connected to the side wall of the mounting plate (101). The output end of the first motor (201) is fixedly connected to the first sprocket (202). The first sprocket (202) passes through the side wall of the mounting plate (101) and is rotatably connected to the mounting plate (101).

4. The axial locking device for a chain-driven roller assembly according to claim 2, characterized in that: The self-locking nut assembly (4) includes a bolt (401) and a washer (403). The bolt (401) passes through the rotating plate (103) and the second sprocket (3), and the washer (403) is movably sleeved on the bolt (401).

5. The axial locking device for a chain-driven roller assembly according to claim 4, characterized in that: The self-locking nut assembly (4) includes a hexagonal nut (402) and a cotter pin (404). The bolt (401) is threadedly connected to the hexagonal nut (402), and the bolt (401) and the hexagonal nut (402) are connected by the cotter pin (404).

6. The axial locking device for a chain-driven roller assembly according to claim 1, characterized in that: The inner wall of the bushing (5) is fixedly connected with a retaining strip corresponding to the rack (610).

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