Chain tensioning device for tape winder

Abstract

The utility model discloses a chain tensioning device for a tape winder, and relates to the field of chain tensioning. The chain tensioning device for the tape winder comprises a first installation part and a second installation part, a movable tensioning wheel is arranged on the outer wall of the first installation part, a fixed tensioning wheel is arranged on the second installation part, a hydraulic cylinder is installed between the first installation part and the second installation part, and a pressure sensor is arranged below the movable tensioning wheel. According to the chain tensioning device for the tape winder, a hydraulic cylinder is started, a first mounting part is pushed to rotate, the distance between a movable tensioning wheel and a fixed tensioning wheel is increased, a chain is tensioned, at the moment, the movable tensioning wheel has the trend of moving downwards along a supporting shaft, pressure is transmitted to a pressure sensor through a spring, and the pressure sensor monitors the pressure value in real time; and when the pressure reaches a threshold value preset by a program, the hydraulic cylinder is controlled to stop stretching according to a feedback signal, so that the chain is kept in a reasonable tensioning state, the structure is simple, and control is accurate and effective.

Description

Technical Field

[0001] This utility model relates to the field of chain tensioning technology, specifically a chain tensioning device for belt-driven vehicles. Background Technology

[0002] Hydraulic belt conveyor is a belt replacement device used in coal transport machines. When using hydraulic belt conveyor, one of the transmission schemes between the drive shaft and the transmission shaft is chain drive. However, during long-term use, it has been found that the transmission chain will become loose, which will cause the sprockets and chain to wear easily. To address the above problem, a chain tensioning device needs to be installed on the chain.

[0003] However, there are currently two common chain tensioning solutions on the market. One is to directly adjust the distance between the drive wheel and the transmission wheel on the chain. This solution cannot be used when the positions of the drive wheel and the transmission wheel are fixed, so it is not suitable for hydraulic conveyor belts. The other is to add a tensioning wheel, which moves to stretch and tighten the slack part of the chain. However, the existing tensioning wheel adjustment process requires the installation part of the tensioning wheel to be designed with corresponding guides and drive components so that the tensioning wheel can move in a predetermined direction to ensure the safety and reliability of the tensioning process. This makes the entire tensioning device complex, costly, and difficult to control. Therefore, a chain tensioning device for conveyor belts is provided to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a chain tensioning device for conveyor belt vehicles, which solves the problems of complex structure, high cost, and difficulty in control of existing chain tensioning devices.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a tensioning device for a belt-driven vehicle chain, comprising a first mounting part and a second mounting part rotatably mounted on the first mounting part, wherein both ends of the second mounting part are rotatably mounted with sprockets;

[0006] The outer wall of the first mounting part is provided with a movable tensioning wheel, and the second mounting part is provided with a fixed tensioning wheel. A hydraulic cylinder is installed between the first mounting part and the second mounting part. The hydraulic cylinder causes the second mounting part to rotate around the first mounting part by extending and retracting, thereby adjusting the distance between the movable tensioning wheel and the fixed tensioning wheel, thereby achieving chain tensioning. A pressure sensor is provided below the movable tensioning wheel, and the pressure sensor is controlled and connected to the hydraulic cylinder.

[0007] Preferably, a movable groove is provided on one side of the first mounting part, and one end of the second mounting part is rotatably connected in the movable groove.

[0008] Preferably, a set of the sprockets extends through the outer wall of the movable groove and is rotatably connected to the first mounting part.

[0009] Preferably, the top of the end of the second mounting part away from the movable groove is integrally formed with a connecting part, and the fixed tensioning wheel is rotatably disposed on the outer wall of the connecting part.

[0010] Preferably, one end of the hydraulic cylinder is movably hinged to the connecting part, and the other end of the hydraulic cylinder is movably hinged to the inner wall of the movable groove.

[0011] Preferably, the outer wall of the first mounting part is provided with a sliding groove, the movable tensioning wheel is movably disposed in the sliding groove, and the pressure sensor is fixedly installed at the inner bottom of the sliding groove.

[0012] Preferably, a support shaft is fixedly provided at the inner top of the slide groove, a spring is movably sleeved on the outer surface of the support shaft, and a sliding connector is rotatably connected to the inner side of the movable tension wheel, the sliding connector being movably sleeved on the outer surface of the top end of the support shaft.

[0013] Preferably, the two ends of the spring abut against the pressure sensor and the sliding connector, respectively.

[0014] This utility model discloses a chain tensioning device for a tape winding vehicle, which has the following advantages: By fixing two sets of sprockets to the drive shaft and transmission shaft of the tape winding vehicle respectively, and fixing the second mounting part to the tape winding vehicle, the hydraulic cylinder is activated, causing the output end of the hydraulic cylinder to extend and push the first mounting part to rotate. The movable tensioning wheel moves with the first mounting part, increasing the distance between the movable tensioning wheel and the fixed tensioning wheel, thus tensioning the chain. At this time, the traction force of the chain on the movable tensioning wheel causes the movable tensioning wheel to tend to move downward along the support shaft. At this time, the pressure is transmitted to the pressure sensor through the spring. The pressure sensor monitors the pressure value in real time. When the pressure reaches the threshold preset by the program, the pressure sensor gives a feedback signal. Based on the feedback signal, the hydraulic cylinder is controlled to stop extending, thereby maintaining the chain in a reasonable tension state. The structure is simple and the control is precise and effective. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the rear structure of the first mounting part of this utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the first mounting part of this utility model.

[0019] In the diagram: 1. First mounting part; 12. Movable groove; 2. Second mounting part; 22. Connecting part; 3. Movable tension wheel; 32. Sliding connector; 33. Slide groove; 34. Pressure sensor; 35. Support shaft; 36. Spring; 4. Fixed tension wheel; 5. Hydraulic cylinder; 6. Sprocket. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] This application provides a chain tensioning device for rolling vehicles, which solves the problems of existing chain tensioning devices being complex in structure, high in cost, and difficult to control.

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] This utility model discloses a tensioning device for a belt-driven automotive chain, according to the attached... Figure 1-3 As shown, it includes a first mounting part 1 and a second mounting part 2 rotatably mounted on the first mounting part 1, with sprockets 6 rotatably mounted at both ends of the second mounting part 2;

[0024] A movable tension wheel 3 is provided on the outer wall of the first mounting part 1, and a fixed tension wheel 4 is provided on the second mounting part 2. A hydraulic cylinder 5 is installed between the first mounting part 1 and the second mounting part 2. The hydraulic cylinder 5 causes the second mounting part 2 to rotate around the first mounting part 1 by extending and retracting, thereby adjusting the distance between the movable tension wheel 3 and the fixed tension wheel 4, thereby achieving chain tensioning. A pressure sensor 34 is provided below the movable tension wheel 3, and the pressure sensor 34 is controlled and connected to the hydraulic cylinder 5.

[0025] A movable groove 12 is provided on one side of the first mounting part 1, and one end of the second mounting part 2 is rotatably connected in the movable groove 12.

[0026] A set of sprockets 6 extends through the outer wall of the movable groove 12 and is rotatably connected to the first mounting part 1.

[0027] The second mounting part 2 has a connecting part 22 integrally formed at the top of the end away from the movable groove 12. The fixed tensioning wheel 4 is rotatably mounted on the outer wall of the connecting part 22. One end of the hydraulic cylinder 5 is movably hinged to the connecting part 22, and the other end of the hydraulic cylinder 5 is movably hinged to the inner side wall of the movable groove 12. The output end of the hydraulic cylinder 5 extends. At this time, the hydraulic cylinder 5 pushes the first mounting part 1 and the second mounting part 2 to rotate relative to each other. At this time, the positions of the two sets of sprockets 6 remain unchanged, and the movable tensioning wheel 3 moves with the first mounting part 1, so that the distance between the movable tensioning wheel 3 and the fixed tensioning wheel 4 increases, thereby achieving chain tensioning.

[0028] A groove 33 is provided on the outer wall of the first mounting part 1. The movable tension wheel 3 is movably disposed in the groove 33, and the pressure sensor 34 is fixedly installed at the inner bottom of the groove 33. A support shaft 35 is fixedly disposed at the inner top of the groove 33. A spring 36 is movably sleeved on the outer surface of the support shaft 35. A sliding connector 32 is rotatably connected to the inner side of the movable tension wheel 3. The sliding connector 32 is movably sleeved on the top outer surface of the support shaft 35. The two ends of the spring 36 abut against the pressure sensor 34 and the sliding connector 32, respectively. When the chain tension is too high, the sliding connector 32 will slide down along the support shaft 35, causing the spring 36 to be compressed, thereby playing an adaptive compensation effect within a certain range and preventing the chain from breaking due to excessive tension.

[0029] Working principle: In use, the device is fixedly installed with two sets of sprockets 6 to the drive shaft and transmission shaft of the winding cart, respectively, and the second mounting part 2 is fixed to the winding cart. A control circuit board is installed, and a corresponding signal control program is written on it. This allows the pressure sensor 34 to be connected to the hydraulic cylinder 5 via the control circuit board. During use, the hydraulic cylinder 5 is activated, causing its output end to extend. This pushes the first mounting part 1 and the second mounting part 2 to rotate relative to each other. At this time, the two sets of sprockets 6 remain stationary, and the movable tension wheel 3 moves with the first mounting part 1. The movement increases the distance between the movable tension wheel 3 and the fixed tension wheel 4, thereby tensioning the chain. During this process, as the chain tensions, the traction force exerted by the chain on the movable tension wheel 3 causes the movable tension wheel 3 to tend to move downward along the support shaft 35. At this time, the pressure is transmitted to the pressure sensor 34 through the spring 36. The pressure sensor 34 monitors the pressure value in real time. When the pressure reaches the threshold preset by the program, the pressure sensor 34 gives a feedback signal to the control circuit board. The control circuit board controls the hydraulic cylinder 5 to stop extending according to the feedback signal, thereby maintaining the chain in a reasonable tension state.

[0030] Furthermore, by setting spring 36, when the chain tension is too high, the sliding connector 32 will slide down along the support shaft 35, causing spring 36 to be compressed, thereby achieving an adaptive compensation effect within a certain range and preventing the chain from breaking due to excessive tension in sudden situations.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A chain tensioner for a tape winding vehicle, characterized by comprising: The first mounting part (1) and the second mounting part (2) are rotatably arranged on the first mounting part (1), and the two ends of the second mounting part (2) are rotatably provided with sprockets (6); The outer wall of the first mounting part (1) is provided with a movable tensioner (3), the second mounting part (2) is provided with a fixed tensioner (4), and a hydraulic cylinder (5) is installed between the first mounting part (1) and the second mounting part (2). The hydraulic cylinder (5) rotates the second mounting part (2) around the first mounting part (1) through extension and retraction, so as to adjust the distance between the movable tensioner (3) and the fixed tensioner (4), thereby realizing chain tensioning. A pressure sensor (34) is arranged below the movable tensioner (3), and the pressure sensor (34) is in control connection with the hydraulic cylinder (5).

2. A chain tensioner for a tape measure according to claim 1, wherein: One side of the first mounting part (1) is provided with a movable slot (12), and one end of the second mounting part (2) is rotatably connected in the movable slot (12).

3. A chain tensioner for a tape measure according to claim 2, wherein: A group of sprockets (6) are movably penetrated to the outer wall of the movable slot (12) and are rotatably connected with the first mounting part (1).

4. A chain tensioner for a tape measure according to claim 2, wherein: The second mounting part (2) is integrally formed with a connecting part (22) at the top of the end away from the movable slot (12), and the fixed tensioner (4) is rotatably arranged on the outer wall of the connecting part (22).

5. A chain tensioner for a tape measure according to claim 4, wherein: One end of the hydraulic cylinder (5) is movably hinged on the connecting part (22), and the other end of the hydraulic cylinder (5) is movably hinged on the inner side wall of the movable slot (12).

6. A chain tensioner for a tape measure according to claim 1, wherein: The outer wall of the first mounting part (1) is provided with a sliding groove (33), the movable tensioner (3) is movably arranged in the sliding groove (33), and the pressure sensor (34) is fixedly installed on the inner bottom of the sliding groove (33).

7. A chain tensioner for a tape measure according to claim 6, wherein: The inner top of the sliding groove (33) is fixedly provided with a supporting shaft (35), the outer surface of the supporting shaft (35) movably sleeves a spring (36), the inner side of the movable tensioner (3) is rotatably connected with a sliding connector (32), and the sliding connector (32) movably sleeves the top outer surface of the supporting shaft (35).

8. A chain tensioner for a tape measure according to claim 7, wherein: The two ends of the spring (36) are respectively abutted with the pressure sensor (34) and the sliding connector (32).

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