Automatic pressure relief shutdown protection device for winch of sealing-tape machine

Abstract

The utility model relates to the technical field of tensioning winches, in particular to an automatic pressure relief shutdown protection device for a sealing-tape machine winch, which comprises a frame, a first moving frame, a connecting frame, a protective roller, a tensioning roller, a second moving frame, a connecting plate, a contact, a wireless transmitter, a fixing frame, a hydraulic rod, an adjusting component, an adjusting component and a supporting component. A first moving frame is arranged above the machine frame and slidably connected with the machine frame, a connecting frame is arranged above the first moving frame, a tensioning roller is arranged on the inner side of the connecting frame, a fixing frame is arranged above the connecting frame, a hydraulic rod is arranged below the fixing frame, and a protection roller is arranged at one end of the hydraulic rod. A second moving frame is arranged above the rack; the tension of the belt is protected while the device is automatically stopped, so that the belt is prevented from slipping due to insufficient tension, the hidden danger caused by the fact that the belt fluctuates up and down to knock off a carrier roller is avoided, damage to equipment is reduced, and normal production is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tension winch technology, and in particular to an automatic pressure relief and shutdown protection device for a belt conveyor winch. Background Technology

[0002] Due to the complex working environment and long-term operation, belt conveyor winches often experience self-unloading. When this happens, the belt may slip due to insufficient tension during operation. Belt slippage not only affects the normal operating efficiency of the belt conveyor but also triggers a series of chain reactions. The belt in the storage bin experiences unstable tension and large fluctuations, which can easily knock off the storage bin idlers. Once the idlers are knocked off, they may further pull on the drive drum. The abnormal contact and pulling between the drive drum and the belt can easily damage the belt.

[0003] Existing technologies lack effective automatic detection and response mechanisms when facing these problems; often, problems are only discovered and addressed after the belt is severely damaged or the equipment malfunctions and stops. This approach not only increases equipment maintenance costs but also causes production interruptions due to equipment downtime, resulting in significant economic losses for enterprises.

[0004] Therefore, in response to the above problems, an automatic pressure relief and shutdown protection device for belt conveyor winches is proposed. By automatically stopping the device while protecting the belt tension, it prevents the belt from slipping due to insufficient tension, avoids the hidden dangers caused by the belt fluctuating up and down and knocking off the idler rollers, reduces damage to the equipment, and ensures normal production. Utility Model Content

[0005] In order to overcome the problems that occur during the daily operation of traditional belt conveyor winches, such as winch self-unloading, belt slippage due to insufficient tension, large up-and-down fluctuations of the belt in the storage bin which can easily knock off the storage bin idler, causing the idler to pull on the drive drum and tear the belt.

[0006] The technical solution of this utility model is as follows: an automatic pressure relief and shutdown protection device for a conveyor belt winch, comprising a frame, a first movable frame, a connecting frame, a protective roller, a tension roller, a second movable frame, a connecting plate, a contact, a wireless transmitter, a fixed frame, a hydraulic rod, an adjusting component, an adjustment component, and a support component. The first movable frame is provided above the frame and is slidably connected to the frame. The connecting frame is provided above the first movable frame, and a tension roller is provided on the inner side of the connecting frame. The fixed frame is provided above the connecting frame, and a hydraulic rod is provided below the fixed frame. A protective roller is provided at one end of the hydraulic rod. The second movable frame is provided above the frame and is slidably connected to the frame. A connecting plate is provided on one side of the first movable frame, and a contact is provided on one side of the second movable frame. The wireless transmitter is provided above the frame, an adjusting component is provided on one side of the frame, an adjustment component is provided on one side of the frame, and a support component is provided below the frame.

[0007] Preferably, the tension roller position is adjusted by linearly moving the first moving frame along the inner side of the frame, thereby adjusting the belt tension of the conveyor belt. However, after the conveyor belt has been working for a long time, the winch may self-unload, and the belt may slip due to insufficient tension during operation. At this time, the position of the first moving frame will retract, and at the same time, it will drive the connecting plate to move linearly. After the moving plate moves, it contacts the contact point on the side of the second moving frame. The trigger signal is transmitted to the control system of the external device through the wireless transmission module, which activates the hydraulic rod to extend and retract, driving the guard roller to move up and down. The up and down movement of the guard roller presses the belt, which protects the belt from slippage due to insufficient tension while automatically stopping the device. This avoids the hidden danger of the belt fluctuating up and down and knocking off the idler roller, reduces damage to the equipment, and ensures normal production.

[0008] Preferably, the adjustment assembly includes a first threaded rod and a first bevel gear. The first threaded rod is provided on the inner side of the frame and is threadedly connected to the first movable frame. The first bevel gear is provided on the outer side of the first threaded rod and is keyway connected to the first threaded rod.

[0009] Preferably, the adjusting assembly also includes a second bevel gear and a rotating shaft. The second bevel gear is disposed on the outer side of the first bevel gear and meshes with the first bevel gear. The rotating shaft is disposed on the inner side of the second bevel gear and is connected to the second bevel gear via a keyway.

[0010] Preferably, the adjustment assembly also includes a connecting wheel and a handle, with the connecting wheel provided at one end of the shaft and the handle provided on one side of the connecting wheel.

[0011] Preferably, the adjustment assembly includes a motor and a second threaded rod. The motor is located on one side of the frame, and the output end of the motor is provided with the second threaded rod. The second threaded rod and the second movable frame are threadedly connected.

[0012] Preferably, the adjustment assembly also includes a scale, with a scale provided on one side of the second movable frame, the scale penetrating the connecting plate.

[0013] Preferably, the support assembly includes a bracket and a base, with the bracket located below the frame, and multiple brackets provided, with the base located below the bracket.

[0014] The beneficial effects of this utility model are:

[0015] The tension of the conveyor belt is adjusted by linearly moving the first moving frame along the inner side of the frame to adjust the position of the tension roller. However, after the conveyor belt has been working for a long time, the winch may self-unload, and the belt may slip due to insufficient tension during operation. At this time, the position of the first moving frame will retract, and at the same time, it will drive the connecting plate to move linearly. After the moving plate moves, it will contact the contact point on the side of the second moving frame. The trigger signal is transmitted to the control system of the external device through the wireless transmission module, which will activate the hydraulic rod to extend and retract, driving the guard roller to move up and down. The up and down movement of the guard roller will press the belt tight. While automatically stopping the device, it will also protect the belt from slippage due to insufficient tension, avoid the hidden danger of the belt fluctuating up and down and knocking off the idler roller, reduce damage to the equipment, and ensure normal production. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the automatic pressure relief and shutdown protection device for a conveyor belt winch according to this utility model.

[0017] Figure 2 The diagram shown is a partial three-dimensional structural schematic of the automatic pressure relief and shutdown protection device for a conveyor belt winch according to this utility model.

[0018] Figure 3 The diagram shown is a second three-dimensional structural schematic of the automatic pressure relief and shutdown protection device for a conveyor belt winch according to this utility model.

[0019] Figure 4 The diagram shown is a partial cross-sectional view of the automatic pressure relief and shutdown protection device for a conveyor belt winch according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Frame; 2. First movable frame; 3. Connecting frame; 4. Protective roller; 5. Tensioning roller; 6. Second movable frame; 7. Connecting plate; 8. Contact point; 9. Wireless transmitter; 10. Fixed frame; 11. Hydraulic rod; 201. First threaded rod; 202. First bevel gear; 203. Second bevel gear; 204. Rotating shaft; 205. Connecting wheel; 206. Handle; 301. Motor; 302. Second threaded rod; 303. Scale; 401. Bracket; 402. Base. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 2 This utility model provides an embodiment of an automatic pressure relief and shutdown protection device for a conveyor belt winch, comprising a frame 1, a first movable frame 2, a connecting frame 3, a protective roller 4, a tension roller 5, a second movable frame 6, a connecting plate 7, a contact 8, a wireless transmitter 9, a fixed frame 10, a hydraulic rod 11, an adjustment component, a regulating component, and a support component. The first movable frame 2 is disposed above the frame 1 and is slidably connected to the frame 1. The connecting frame 3 is disposed above the first movable frame 2, and a tension roller is disposed on the inner side of the connecting frame 3. 5. A fixed frame 10 is provided above the connecting frame 3, and a hydraulic rod 11 is provided below the fixed frame 10. A protective roller 4 is provided at one end of the hydraulic rod 11. A second movable frame 6 is provided above the frame 1. The second movable frame 6 and the frame 1 are slidably connected. A connecting plate 7 is provided on one side of the first movable frame 2. A contact point 8 is provided on one side of the second movable frame 6. A wireless transmitter 9 is provided above the frame 1. An adjustment component is provided on one side of the frame 1. An adjustment assembly is provided on one side of the frame 1. A support component is provided below the frame 1.

[0023] Please see Figure 3 and Figure 4 In this embodiment, the adjustment assembly includes a first threaded rod 201 and a first bevel gear 202. The first threaded rod 201 is provided on the inner side of the frame 1 and is threadedly connected to the first movable frame 2. The first bevel gear 202 is provided on the outer side of the first threaded rod 201 and is keyway connected to the first threaded rod 201. The adjustment assembly also includes a second bevel gear 203 and a rotating shaft 204. The second bevel gear 203 is provided on the outer side of the first bevel gear 202 and meshes with the first bevel gear 202. The rotating shaft 204 is provided on the inner side of the second bevel gear 203 and is connected to the first bevel gear 202. The two bevel gears 203 are connected by a keyway. The adjustment assembly also includes a connecting wheel 205 and a handle 206. One end of the rotating shaft 204 is provided with the connecting wheel 205, and one side of the connecting wheel 205 is provided with the handle 206. In use, rotating the handle 206 drives the connecting wheel 205 to rotate, which in turn drives the rotating shaft 204 to rotate, which in turn drives the second bevel gear 203 to rotate, which in turn drives the first bevel gear 202 to rotate, which in turn drives the first threaded rod 201 to rotate, which in turn drives the first moving frame 2 to move linearly.

[0024] The adjustment assembly includes a motor 301 and a second threaded rod 302. The motor 301 is located on one side of the frame 1, and the output end of the motor 301 is connected to the second threaded rod 302. The second threaded rod 302 is threadedly connected to the second movable frame 6. In use, starting the motor 301 drives the second threaded rod 302 to rotate, which in turn drives the second movable frame 6 to move linearly. The adjustment assembly also includes a scale 303, located on one side of the second movable frame 6. The scale 303 passes through the connecting plate 7. In use, the scale 303 is used to observe the relationship between the second movable frame 6 and the connecting plate 7, thereby setting the threshold for the retraction of the tension roller 5. The support assembly includes a bracket 401 and a base 402. The bracket 401 is located below the frame 1, and multiple sets of brackets 401 are provided. The base 402 is located below the bracket 401. In use, the bracket 401 supports the frame 1, thus supporting the device.

[0025] When the winch is in operation, the belt tension drops due to self-unloading. The first moving frame 2 retracts due to the belt slack, which drives the connecting plate 7 to slide along the frame 1. The relative position of the side contact point 8 of the second moving frame 6 and the connecting plate 7 is preset by the scale 303. When the retraction exceeds the set value, the connecting plate 7 contacts the contact point 8, triggering the wireless transmitter 9 to send an alarm signal to the control system.

[0026] After receiving the trigger signal, the control system immediately starts the hydraulic rod 11 to extend rapidly, driving the protective roller 4 to press down onto the belt surface; the protective roller 4 generates additional friction with the belt contact surface, compensating for insufficient tension and suppressing belt slippage;

[0027] By adjusting the motor 301 of the component to drive the second threaded rod 302 to rotate, the second moving frame 6 moves horizontally along the frame 1; combined with the reading of the scale 303, the initial distance between the second moving frame 6 and the connecting plate 7 is precisely set, thereby defining the allowable retraction threshold under different working conditions. When the belt ages or the load changes, the threshold can be dynamically adjusted to avoid false triggering.

[0028] Through the above steps, the position of the tension roller 5 is adjusted by the linear movement of the first moving frame 2 along the inner side of the frame 1, thereby adjusting the tension of the conveyor belt. However, after the conveyor belt has been working for a long time, the winch may self-unload. During operation, the belt may slip due to insufficient tension. At this time, the position of the first moving frame 2 will retract, and at the same time, the connecting plate 7 will move linearly. After the moving plate moves, it will contact the contact point 8 on the side of the second moving frame 6. The trigger signal is transmitted to the control system of the external device through the wireless transmission module, and the hydraulic rod 11 is activated to extend and retract, driving the protective roller 4 to move up and down. The up and down movement of the protective roller 4 is used to press the belt. While automatically stopping the device, the belt is protected from slippage due to insufficient tension, avoiding the hidden danger of the belt fluctuating up and down and knocking off the idler roller, reducing damage to the equipment, and ensuring normal production.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An automatic pressure relief and shutdown protection device for a conveyor belt winch, comprising a frame (1); characterized in that: It also includes a first movable frame (2), a connecting frame (3), a protective roller (4), a tension roller (5), a second movable frame (6), a connecting plate (7), a contact (8), a wireless transmitter (9), a fixed frame (10), a hydraulic rod (11), an adjustment assembly, an adjustment assembly, and a support assembly. The first movable frame (2) is provided above the frame (1), and the first movable frame (2) and the frame (1) are slidably connected. The connecting frame (3) is provided above the first movable frame (2), and a tension roller (5) is provided on the inner side of the connecting frame (3). The fixed frame (10) is provided above the connecting frame (3). 0), a hydraulic rod (11) is provided below the fixed frame (10), a protective roller (4) is provided at one end of the hydraulic rod (11), a second movable frame (6) is provided above the frame (1), the second movable frame (6) and the frame (1) are slidably connected, a connecting plate (7) is provided on one side of the first movable frame (2), a contact point (8) is provided on one side of the second movable frame (6), a wireless transmitter (9) is provided above the frame (1), an adjustment component is provided on one side of the frame (1), an adjustment component is provided on one side of the frame (1), and a support component is provided below the frame (1).

2. The automatic pressure relief and shutdown protection device for a conveyor belt winch according to claim 1, characterized in that: The adjustment assembly includes a first threaded rod (201) and a first bevel gear (202). The first threaded rod (201) is provided on the inner side of the frame (1). The first threaded rod (201) and the first moving frame (2) are threadedly connected. The first bevel gear (202) is provided on the outer side of the first threaded rod (201). The first bevel gear (202) and the first threaded rod (201) are keyway connected.

3. The automatic pressure relief and shutdown protection device for a conveyor belt winch according to claim 2, characterized in that: The adjustment assembly also includes a second bevel gear (203) and a rotating shaft (204). The second bevel gear (203) is provided on the outer side of the first bevel gear (202), and the second bevel gear (203) and the first bevel gear (202) are meshed together. The rotating shaft (204) is provided on the inner side of the second bevel gear (203), and the rotating shaft (204) is connected to the second bevel gear (203) via a keyway.

4. The automatic pressure relief and shutdown protection device for a conveyor belt winch according to claim 3, characterized in that: The adjustment assembly also includes a connecting wheel (205) and a handle (206). One end of the rotating shaft (204) is provided with a connecting wheel (205), and one side of the connecting wheel (205) is provided with a handle (206).

5. The automatic pressure relief and shutdown protection device for a conveyor belt winch according to claim 1, characterized in that: The adjustment assembly includes a motor (301) and a second threaded rod (302). The motor (301) is provided on one side of the frame (1), and the output end of the motor (301) is provided with the second threaded rod (302). The second threaded rod (302) and the second moving frame (6) are threadedly connected.

6. The automatic pressure relief and shutdown protection device for a conveyor belt winch according to claim 5, characterized in that: The adjustment assembly also includes a scale (303), which is provided on one side of the second movable frame (6) and passes through the connecting plate (7).

7. The automatic pressure relief and shutdown protection device for a conveyor belt winch according to claim 1, characterized in that: The support assembly includes a bracket (401) and a base (402). The bracket (401) is provided below the frame (1), and multiple sets of brackets (401) are provided. The base (402) is provided below the bracket (401).

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