Tensioning device

Abstract

The utility model provides a tensioning device, which relates to the technical field of chain transmission equipment and comprises a mounting frame, a pulley block, a draw bar, a slide rail and a bearing seat. The installation frame and the sliding rail are both fixedly arranged on one side of the chain transmission equipment, a pulley block is installed on the installation frame, the pulley block plays a role in providing balance weight, the traction end of the pulley block is connected with a traction rod, and the traction rod is horizontally arranged on the installation frame in a sliding mode. And one end of the traction rod is connected with a bearing seat which is horizontally arranged on the sliding rail in a sliding manner, so that the traction rod is stressed to move the bearing seat. In the device, the position of the bearing seat can be changed, and the position of the bearing seat can be changed by changing the counterweight of the pulley block, so that the tightness of the chain can be effectively adapted, the operation convenience is greatly improved, and the stable operation of chain transmission equipment is effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of chain transmission equipment, in particular to a tensioning device. Background Art

[0002] During the operation of chain transmission equipment (such as chain conveyors, scraper conveyors, etc.), the chain will overlap, deform, and loosen, affecting the operation of the chain conveyor. Therefore, in the prior art, a tensioning device is added to the chain transmission equipment. The tensioning device is used to adjust the tightness of the chain, reduce the vibration of the chain during operation, and prevent the chain from slipping to a certain extent, so as to ensure the normal and stable operation of the chain transmission system.

[0003] The traditional tensioning device is shown in the attached Figure 4 As shown, it includes a bearing seat, a rotating roller and a tensioning sprocket. The bearing seat is arranged on the frame of the chain transmission device, and is connected to the tensioning sprocket through the rotating roller. The tensioning sprocket is connected to the chain of the chain transmission device. During operation, the tensile force of the chain is changed by changing the position of the bearing seat. However, the bearing seat is connected by bolts, and it is inconvenient, time-consuming and labor-intensive to adjust its position each time. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a tensioning device.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The tensioning device includes a mounting frame, a pulley block, a traction rod, a slide rail and a bearing seat; the mounting frame and the slide rail are fixedly arranged on one side of the chain transmission equipment, and a pulley block is installed on the mounting frame, the pulley block plays the role of providing a counterweight and a traction rod is connected to its traction end, the traction rod is horizontally slidably arranged on the mounting frame, and one end of the traction rod is connected to a bearing seat horizontally slidably arranged on the slide rail so that the traction rod is subjected to force to move the bearing seat.

[0007] Furthermore, the pulley block includes a movable pulley, a fixed pulley, a counterweight assembly and a traction rope; the movable pulley is horizontally slidably arranged on a mounting frame and is connected to a counterweight assembly, a fixed pulley is arranged on one side of the movable pulley, the fixed pulley is fixedly arranged on the mounting frame, and the fixed pulley and the movable pulley are connected by a traction rope, and one end of the traction rope is connected to a traction rod.

[0008] Furthermore, two slide grooves are horizontally and symmetrically arranged on the mounting frame, and two slide bars are arranged on the movable pulley, and the two slide bars are respectively connected to the two slide grooves.

[0009] Furthermore, the counterweight assembly includes a hanging rope, a limit seat and a counterweight block; a hanging ring is formed at one end of the hanging rope for connecting to the movable pulley hook, and a limit seat is provided at the other end of the hanging rope, and multiple counterweight blocks are stacked on the limit seat, and the counterweight blocks are sleeved on the outside of the hanging rope.

[0010] Furthermore, a through hole for the hanging rope to pass through is provided in the middle of the counterweight block, and the size of the through hole is smaller than the size of the limiting seat.

[0011] Furthermore, a sliding sleeve is horizontally provided on the mounting frame, and the traction rod is connected to the sliding sleeve.

[0012] Furthermore, the sliding sleeve is a linear bearing to improve the matching effect between the traction rod and the sliding sleeve.

[0013] Furthermore, the mounting frame is provided with a through hole, and the traction rod is connected to the through hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model arranges the mounting frame, the pulley block, the traction rod, the slide rail and the bearing seat, and the position of the bearing seat can be changed through the pulley block, thereby effectively adapting to the tightness of the chain, greatly improving the convenience of operation, and effectively protecting the stable operation of the chain transmission equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 The figure is a schematic diagram of the installation of the movable pulley;

[0018] Figure 3 is a schematic diagram of the structure of the counterweight assembly;

[0019] Figure 4 It is a structural schematic diagram of a traditional tensioning device;

[0020] Among them: 1. mounting frame; 11. slide groove; 12. sliding sleeve; 2. movable pulley; 21. fixed pulley; 22. counterweight assembly; 221. hanging rope; 2211. hanging ring; 222. limit seat; 223. counterweight block; 2231. through hole; 23. traction rope; 24. slide rod; 3. traction rod; 4. slide rail; 5. bearing seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0022] See attached Figure 1 As shown, the tensioning device includes a mounting frame 1, a pulley block, a traction rod 3, a slide rail 4 and a bearing seat 5; the mounting frame 1 and the slide rail 4 are both fixedly arranged on one side of the chain transmission device, and a pulley block is installed on the mounting frame 1, the pulley block serves to provide a counterweight and a traction rod 3 is connected to its traction end, the traction rod 3 is horizontally slidably arranged on the mounting frame 1, and one end of the traction rod 3 is connected to a bearing seat 5 horizontally slidably arranged on the slide rail 4 so that the traction rod 3 is subjected to force to move the bearing seat 5.

[0023] Specifically, refer to the attached Figure 1 As shown, the pulley block includes a movable pulley 2, a fixed pulley 21, a counterweight assembly 22 and a traction rope 23; the movable pulley 2 is horizontally slidably arranged on the mounting frame 1 and is connected to the counterweight assembly 22, a fixed pulley 21 is arranged on one side of the movable pulley 2, the fixed pulley 21 is fixedly arranged on the mounting frame 1, and the fixed pulley 21 is connected to the movable pulley 2 by a traction rope 23, and one end of the traction rope 23 is connected to the traction rod 3.

[0024] In the above scheme, the specific installation method of the movable pulley 2 and the mounting frame 1 is as follows: Figure 2 As shown, two slide grooves 11 are horizontally symmetrically arranged on the mounting frame 1 , and in coordination therewith, two slide bars 24 are arranged on the movable pulley 2 , and the two slide bars 24 are respectively connected to the two slide grooves 11 .

[0025] In the above scheme, refer to the attached Figure 3 As shown, the counterweight assembly 22 includes a hanging rope 221, a limiting seat 222 and a counterweight block 223; a hanging ring 2211 is formed at one end of the hanging rope 221 for connecting with the movable pulley 2, and a limiting seat 222 is provided at the other end of the hanging rope 221. A plurality of counterweight blocks 223 are stacked on the limiting seat 222, and the counterweight blocks 223 are sleeved on the outside of the hanging rope 221.

[0026] In the above solution, the counterweight block 223 and the hanging rope 221 are installed in the following manner: a through hole 2231 for the hanging rope 221 to pass through is provided in the middle of the counterweight block 223 , and the size of the through hole 2231 is smaller than the size of the limiting seat 222 .

[0027] In addition, the pulley block can also be a combination structure of multiple movable pulleys 2 and multiple fixed pulleys 21. The specific combination structure will not be described in detail in this application, and it all belongs to the protection scope of this application.

[0028] Specifically, refer to the attached Figure 1 As shown, the installation method of the traction rod 3 and the mounting frame 1 is: a sliding sleeve 12 is horizontally provided on the mounting frame 1, and the traction rod 3 is connected to the sliding sleeve 12; of course, in order to improve the matching effect between the traction rod 3 and the sliding sleeve 12, the sliding sleeve 12 is a linear bearing.

[0029] Specifically, the traction rod 3 may be installed on the mounting frame 1 in the following manner: a through hole is provided on the mounting frame 1, and the traction rod 3 is inserted into the through hole.

[0030] During the specific implementation of this device, the pulley group can provide a tensile force to the traction rod 3. The change in the tensile force of the traction rod 3 causes the position of the bearing seat 5 to change, thereby effectively adapting to the tightness of the chain. It is worth mentioning that the pulley group can also be adjusted according to the actual tensile force required by the chain. The tightness of the chain can be adjusted by changing the weight of the counterweight assembly 22, which makes the accuracy higher.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tensioning device, characterized in that: It comprises a mounting frame (1), a pulley block, a traction rod (3), a slide rail (4) and a bearing seat (5); The mounting frame (1) and the slide rail (4) are both fixedly arranged on one side of the chain transmission device, and a pulley block is installed on the mounting frame (1). A traction rod (3) is connected to the traction end of the pulley block. The traction rod (3) is horizontally slidably arranged on the mounting frame (1), and one end of the traction rod (3) is connected to a bearing seat (5) horizontally slidably arranged on the slide rail (4).

2. The tensioning device according to claim 1, characterized in that: The pulley block comprises a movable pulley (2), a fixed pulley (21), a counterweight assembly (22) and a traction rope (23); A movable pulley (2) is horizontally slidably arranged on a mounting frame (1) and is connected to a counterweight assembly (22); a fixed pulley (21) is arranged on one side of the movable pulley (2); the fixed pulley (21) is fixedly arranged on the mounting frame (1); the fixed pulley (21) and the movable pulley (2) are connected via a traction rope (23); one end of the traction rope (23) is connected to a traction rod (3).

3. The tensioning device according to claim 2, characterized in that: Two slide grooves (11) are horizontally and symmetrically arranged on the mounting frame (1), and two slide bars (24) are arranged on the movable pulley (2), and the two slide bars (24) are respectively connected to the two slide grooves (11).

4. The tensioning device according to claim 2, characterized in that: The counterweight assembly (22) comprises a hanging rope (221), a limiting seat (222) and a counterweight block (223); A hanging ring (2211) for connecting with the movable pulley (2) is formed at one end of the hanging rope (221), and a limiting seat (222) is provided at the other end of the hanging rope (221). A plurality of counterweights (223) are stacked and placed on the limiting seat (222), and the counterweights (223) are sleeved on the outside of the hanging rope (221).

5. The tensioning device according to claim 4, characterized in that: A through hole (2231) is provided in the middle of the counterweight block (223) for the hanging rope (221) to pass through, and the size of the through hole (2231) is smaller than the size of the limiting seat (222).

6. The tensioning device according to claim 1, characterized in that: A sliding sleeve (12) is horizontally arranged on the mounting frame (1), and the traction rod (3) is connected to the sliding sleeve (12).

7. The tensioning device according to claim 6, characterized in that: The sliding sleeve (12) is a linear bearing.

8. The tensioning device according to claim 1, characterized in that: The mounting frame (1) is provided with a through hole, and the traction rod (3) is connected to the through hole.

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