Belt temperature protection adjustable fixing frame

Abstract

According to the belt temperature protection adjustable fixing frame, L-shaped clamping jaws are arranged, the two clamping jaws are connected through a spring, the use width of the clamping jaws is increased through elastic potential energy of the spring, after the spring is stretched, the two clamping jaws are pulled back and installed on a supporting frame of a driving roller, a connecting rod in a sleeve can rotate and slide in the sleeve, and therefore the belt temperature protection adjustable fixing frame is formed. After the set position of the temperature probe is set, the double nuts are screwed into the threads on the two sides of the connecting rod, the nuts make contact with the sleeve, when the temperature probe and the spraying head are installed, the fixing rod is pulled, the fixing rod drives the clamping plate to move, and after the temperature probe or the spraying head is installed, the reset spring is reset. When the temperature is too high and the signal receiver on the electromagnetic valve receives the signal, the spraying head is controlled to spray water out of the water bucket, and the sprayed water mist falls into the sewage box below and flows back into the water bucket through the one-way valve.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor equipment, in particular to an adjustable fixing frame for belt temperature protection. Background Technique

[0002] In the belt conveying system, the temperature protection device is a key safety measure. Its main function is to monitor the temperature of the belt to prevent equipment damage or safety accidents caused by excessive temperature. When the belt temperature exceeds the set threshold, the temperature protection device should achieve shutdown due to overheating. At present, temperature probes are generally installed in underground mines by hanging or tying them with iron wires. Although iron wires have a certain degree of flexibility, this unstable fixing method will cause the probe to move or swing during the operation of the belt conveyor, thus affecting the measurement accuracy. The instability or insecure fixation of the probe position makes it unable to respond promptly to the change of the belt temperature, resulting in the temperature protection system being unable to quickly detect the over-temperature state, and thus unable to issue an alarm or shutdown signal in a timely manner. In addition, since protection devices need to be installed at the installation positions of different belt conveyor driving drums in the underground roadway, when the temperature probe is damaged or fails, the existing device needs to be replaced quickly, and the current device cannot meet the requirements of quick installation and replacement. Content of the Utility Model

[0003] The purpose of the utility model is to provide an adjustable fixing frame for belt temperature protection to solve the problems that the fixing method with iron wires causes the probe to move or swing during the operation of the belt conveyor, thus affecting the measurement accuracy, the instability or insecure fixation of the probe position makes it unable to respond promptly to the change of the belt temperature, resulting in the temperature protection system being unable to quickly detect the over-temperature state, and thus unable to issue an alarm or shutdown signal in a timely manner. In addition, since protection devices need to be installed at the installation positions of different belt conveyor driving drums in the underground roadway, when the temperature probe is damaged or fails, the existing device needs to be replaced quickly, and the current device cannot meet the requirements of quick installation and replacement.

[0004] To achieve the above purpose, the utility model provides the following technical solution: An adjustable fixing frame for belt temperature protection is installed on the support frame of the belt conveyor driving drum. Connecting devices are respectively installed on the support frames on the left and right sides of the belt conveyor. A clamping device is installed on the connecting device. A temperature probe and a spray head are respectively arranged in the clamping device. A sewage box and a water bucket are installed between the two support frames.

[0005] The connecting device includes a first jaw, a second jaw, a sleeve, and a connecting rod. The second jaw is inserted into the first jaw, and the second jaw is slidably fitted in the first jaw. A plurality of springs are connected between the first jaw and the second jaw. One end of the spring is connected to the inner wall of the first jaw, and the other end is connected to the second jaw. The top of the first jaw is connected to a sleeve. The sleeve is a through-tube, and a connecting rod is fitted in its internal cavity. The connecting rod is slidably fitted in the sleeve. A thread is provided on the connecting rod, and a double nut is screwed on the thread. The nut abuts against the sleeve. A extension portion is provided at the threaded end of one end of the connecting rod, and a clamping device is connected to the top of the extension portion.

[0006] The clamping device includes a housing, a fixing rod, and a clamping plate. A plurality of symmetrically arranged holes are formed on the outer circumference of the housing. The fixing rod is inserted into the hole, and the fixing rod is slidably fitted in the housing. The top of the fixing rod is connected to the clamping plate, which is arranged inside the housing. A limiting plate is provided at the other end. A return spring is provided between the clamping plate and the inner wall of the housing, which is sleeved on the fixing rod. One end of the return spring abuts against the clamping plate, and the other end abuts against the inner wall of the housing.

[0007] Preferably, the clamping plate is arc-shaped, and the arc-shaped end abuts against the outer circumference of the temperature probe and the spray head.

[0008] Preferably, an anti-slip pad is provided at the contact end of the clamping plate with the temperature probe and the spray head.

[0009] Preferably, the spray head is connected to the water bucket through a pipeline, and a solenoid valve is provided on the pipeline. A signal receiver is provided on the solenoid valve for receiving the switch signal of the terminal.

[0010] Preferably, the temperature probe is electrically connected to the terminal.

[0011] Preferably, the sewage box is arranged at the bottom of the driving roller and is supported between two support frames. A sewage discharge port is formed on the sewage box, and a hose is connected to the sewage discharge port. The other end of the hose is connected to the water bucket and is controlled by a one-way valve.

[0012] Preferably, the tops of the temperature probe and the spray head respectively face the driving roller.

[0013] Preferably, extension portions are respectively provided at the tops of the first jaw and the second jaw. The extension portions are L-shaped with the first jaw and the second jaw, and the extension portions abut against the support frame.

[0014] Preferably, anti-slip pads are provided at the contact ends of the first jaw and the second jaw with the support frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] By setting an L-shaped jaw and connecting the two jaws with a spring, the elastic potential energy of the spring is used to increase the usable width of the jaws. After the spring is stretched, the two jaws are pulled back and installed on the support frame of the driving roller. The connecting rod in the sleeve can rotate and slide within the sleeve. After setting the established position of the temperature probe, the double nuts are screwed onto the threads on both sides of the connecting rod so that the nuts contact the sleeve, thereby fixing the position of the probe. When installing the temperature probe and the spray head, the fixing rod is pulled, and the fixing rod drives the clamping plate to move. After installing the temperature probe or the spray head, the return spring uses its elastic potential energy to reset the clamping plate, thereby clamping and fixing the outer circumference of the temperature probe or the spray head, which is convenient for maintenance and installation.

[0017] The temperature probe sends signals to the remote terminal. When the temperature is too high, after the signal receiver on the solenoid valve receives the signal, it controls the spray head to spray the water in the water bucket onto the driving roller for cooling. The sprayed water mist falls into the sewage box below for collection and flows back into the water bucket through the one-way valve. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2 It is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the connecting device of the present utility model.

[0021] Figure 4 It is a schematic diagram of the structure of the clamping plate, return spring, and outer shell of the present utility model in mutual cooperation.

[0022] In the figure: 1, driving roller; 2, support frame; 3, connecting device; 301, first jaw; 302, second jaw; 303, spring; 304, sleeve; 305, connecting rod; 306, outer shell; 307, fixing rod; 308, return spring; 309, clamping plate; 310, limiting plate; 4, sewage box; 5, water bucket; 6, solenoid valve; 7, spray head; 8, temperature probe; 9, one-way valve. Detailed Implementation Manner

[0023] To make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation manners.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. shall be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1: Please refer to Figure 1-2 , an embodiment provided by the present utility model: A belt temperature protection adjustable fixing frame is installed on the support frame 2 of the driving roller 1 of the belt conveyor. Connecting devices 3 are respectively installed on the support frames 2 on the left and right sides of the belt conveyor. A clamping device is installed on the connecting device 3. Temperature probes 8 and spray heads 7 are respectively arranged in the clamping device. A sewage box 4 and a water bucket 5 are installed between the two support frames 2.

[0028] The connecting device 3 includes a first jaw 301, a second jaw 302, a sleeve 304, and a connecting rod 305. The second jaw 302 is inserted into the first jaw 301, and the second jaw 302 is slidably engaged with the first jaw 301. A plurality of springs 303 are connected between the first jaw 301 and the second jaw 302. The springs 303 are connected between the first jaw 301 and the second jaw 302 to provide an elastic effect, help the clamping device return to its original position, and adjust the clamping width. One end of the spring 303 is connected to the inner wall of the first jaw 301, and the other end is connected to the second jaw 302. Extension parts are respectively provided at the tops of the first jaw 301 and the second jaw 302. The extension parts are arranged in an L shape with the first jaw 301 and the second jaw 302, and the extension parts abut against the support frame 2. Anti-slip pads are provided at the contact ends of the first jaw 301 and the second jaw 302 with the support frame 2. The first jaw 301 and the second jaw 302 are opened and reset by the elastic potential energy of the spring 303 between them. During installation, the second jaw 302 is pulled out, and the second jaw 302 slides within the first jaw 301 while pulling the spring 303 at the same time. The extension parts on both sides of the first jaw 301 and the second jaw 302 abut against the two side surfaces of the support frame 2. The bottom ends of the transverse ends of the first jaw 301 and the second jaw 302 are in contact with the support frame 2. At the same time, the spring 303 is reset, pulling the second jaw 302 back and installing it on the support frame 2. At the same time, the anti-slip pads increase the friction to ensure a firm connection on the support frame 2. During disassembly, the second jaw 302 is pulled to open the device for disassembly. The top of the first jaw 301 is connected to a sleeve 304. The sleeve 304 is a through pipe, and a connecting rod 305 is fitted into its internal cavity. The outer circumference of the connecting rod 305 abuts against the inner wall of the sleeve 304 and slides within the sleeve 304. By sliding, the positions of the temperature probe 8 and the spray head 7 relative to the driving roller 1 can be adjusted. At the same time, the connecting rod 305 can rotate within the sleeve 304 to adjust the preset positions of the temperature probe 8 and the spray head 7. Subsequently, double nuts at both ends of the connecting rod 305 are screwed on the threads to abut against both sides of the sleeve 304. By locking with the double nuts, the position and rotation angle of the connecting rod 305 are limited to fix the positions and angles of the temperature probe 8 and the spray head 7. The connecting rod 305 is slidably engaged with the sleeve 304. Threads are provided on the connecting rod 305, and double nuts are screwed on the threads. The nuts abut against the sleeve 304. An extension part is provided at the threaded end of one end of the connecting rod 305, and a clamping device is connected to the top of the extension part.

[0029] Embodiment 2: Please refer to Figure 3-4 , based on Embodiment 1, the following structure is further provided:

[0030] The clamping device includes a housing 306. The housing 306 serves as the main structural support component of the clamping device. The holes in the housing 306 provide a sliding path for the fixing rod 307 and a positioning space for the clamping plate 309, and it is also the external framework of the entire device, ensuring that other components can be correctly installed and operate inside it. There are the fixing rod 307 and the clamping plate 309. A number of symmetrically arranged holes are provided on the outer circumferential surface of the housing 306. The fixing rod 307 is inserted into the holes. The fixing rod 307 is slidably fitted with the housing 306. The top end of the fixing rod 307 is connected to the clamping plate 309. The fixing rod 307 is inserted into the hole of the housing 306 and is slidably fitted therein, connecting the clamping plate 309 and allowing the clamping plate 309 to move within a certain range, so that the clamping plate 309 can be adjusted at different positions to adapt to target objects of different sizes or shapes. It is arranged inside the housing 306, and a limiting plate 310 is provided at the other end. The limiting plate 310 is used to limit the moving range of the fixing rod 307. The function of the limiting plate 310 is to prevent the fixing rod 307 from sliding excessively, thereby ensuring that the clamping plate 309 clamps at the correct position. A return spring 308 is provided between the clamping plate 309 and the inner wall of the housing 306 and is sleeved on the fixing rod 307. One end of the return spring 308 abuts against the clamping plate 309, and the other end abuts against the inner wall of the housing 306. The clamping plate 309 is arc-shaped, and the arc-shaped end abuts against the outer circumferences of the temperature probe 8 and the spray head 7. The arc-shaped design can better fit the outer shape of the target object, thereby providing a uniform clamping force. The arc-shaped end contacts the outer circumference of the target object to ensure the stability and effectiveness of clamping. Anti-slip pads are provided at the contact ends of the clamping plate 309 with the temperature probe 8 and the spray head 7. The anti-slip pads increase the friction force and prevent the target object from sliding or moving during the clamping process. They help to provide a more stable clamping force, protect the target object from damage, and maintain the stability of the clamping device. When installing the temperature probe 8 and the spray head 7, the fixing rod 307 is pulled, and the fixing rod 307 slides in the hole, simultaneously driving the clamping plate 309 to slide, increasing the internal cavity of the housing 306. Subsequently, the temperature probe 8 and the spray head 7 are installed in the cavity. Then, after being compressed, the return spring 308 resets, driving the clamping plate 309 to slide and simultaneously abutting against the outer circumferences of the temperature probe 8 and the spray head 7 for clamping and fixing. When disassembling, the fixing rod 307 is pulled to increase the cavity between the two clamping plates 309, and then the temperature probe 8 and the spray head 7 between the clamping plates 309 can be disassembled.

[0031] Embodiment 3: Please refer to Figure 3 , on the basis of Embodiment 1, it also has the following structure:

[0032] The spray head 7 is responsible for spraying water from the water bucket 5 onto the surface of the driving roller 1 for cooling. By means of spraying, the water can be evenly distributed, cooling the driving roller 1. It is connected to the water bucket 5 through a pipeline. An electromagnetic valve 6 is arranged on the pipeline. A signal receiver is arranged on the electromagnetic valve 6 for receiving the on-off signal from the terminal. The electromagnetic valve 6 controls the on-off of the water flow. It is installed on the pipeline between the spray head 7 and the water bucket 5. The water flow is turned on or off by receiving the signal through the receiver, thereby controlling the opening or closing of the spray head 7.

[0033] The temperature probe 8 is electrically connected to the terminal, monitors the temperature of the driving roller 1, and transmits the temperature data to the terminal so as to adjust the spraying operation according to the temperature change.

[0034] The top ends of the temperature probe 8 and the spray head 7 are respectively oriented towards the driving roller 1.

[0035] The sewage box 4 is arranged at the bottom end of the driving roller 1 and is placed between the two support frames 2. The sewage box 4 collects the sewage flowing down after cooling from the driving roller 1. Its bottom is arranged between the two support frames 2. The collected sewage is discharged through the sewage outlet. A sewage outlet is opened on the sewage box 4. A hose is connected to the sewage outlet. The other end of the hose is connected to the water bucket 5 and is controlled by a one-way valve 9. The one-way valve 9 is installed on the hose to ensure that the sewage can only flow in one direction and prevent the water from flowing back into the sewage box.

[0036] The above are only the embodiments of the present invention. The specific structures and characteristics and other common knowledge well known in the solution are not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A belt temperature protection adjustable fixing frame, mounted on a supporting frame (2) of a belt conveyor driving roller (1), characterized in that: A connecting device (3) mounted on the left and right support frames (2) of the belt conveyor, a clamping device mounted on the connecting device (3), wherein the clamping device is provided with a temperature probe (8) and a spray head (7), a sewage box (4) mounted between the two support frames (2), and a water bucket (5), The connecting device (3) comprises a first clamping jaw (301), a second clamping jaw (302), a sleeve (304), and a connecting rod (305); the second clamping jaw (302) is inserted into the first clamping jaw (301); the second clamping jaw (302) is slidably matched with the first clamping jaw (301); a plurality of springs (303) are connected between the first clamping jaw (301) and the second clamping jaw (302); one end of the spring (303) is connected to the inner wall of the first clamping jaw (301); the other end of the spring (303) is connected to the inner wall of the first clamping jaw (301); One end is connected to the second clamping jaw (302), the top end of the first clamping jaw (301) is connected to a sleeve (304), the sleeve (304) is a through tube, the internal cavity is embedded with a connecting rod (305), the connecting rod (305) is slidably matched with the sleeve (304), the connecting rod (305) is provided with a thread, a double nut is screwed on the thread, the nut is in contact with the sleeve (304), the threaded end of one end of the connecting rod (305) is provided with an extension part, the top end of the extension part is connected to a clamping device, The clamping device comprises a housing (306), a fixing rod (307), and a clamping plate (309). A plurality of symmetrically arranged holes are opened on the outer circumference of the housing (306), and the fixing rod (307) is inserted into the hole. The fixing rod (307) is slidably matched with the housing (306). The top end of the fixing rod (307) is connected to the clamping plate (309) and is arranged in the housing (306). A limiting plate (310) is arranged at the other end. A return spring (308) is arranged between the clamping plate (309) and the inner wall of the housing (306), and is sleeved on the fixing rod (307). One end of the return spring (308) contacts the clamping plate (309), and the other end contacts the inner wall of the housing (306).

2. The belt temperature protection adjustable fixing bracket according to claim 1, characterized in that: The clamping plate (309) is arranged in an arc shape, and the arc end contacts the outer circumference of the temperature probe (8) and the spray head (7).

3. The belt temperature protection adjustable fixing bracket according to claim 2 is characterized in that: Anti-slip pads are provided at the contact ends of the clamping plate (309) and the temperature probe (8) and the spray head (7).

4. The belt temperature protection adjustable fixing bracket according to claim 1, characterized in that: The spray head (7) is connected to the water bucket (5) by a pipeline, a solenoid valve (6) is arranged on the pipeline, and a signal receiver is arranged on the solenoid valve (6) for receiving a switch signal from a terminal.

5. The belt temperature protection adjustable fixing bracket according to claim 1, characterized in that: The temperature probe (8) is electrically connected to the terminal.

6. The belt temperature protection adjustable fixing bracket according to claim 1, characterized in that: The sewage box (4) is arranged at the bottom end of the active drum (1) and is mounted between the two support frames (2). The sewage box (4) is provided with a sewage outlet, and a hose is connected to the sewage outlet. The other end of the hose is connected to a water bucket (5) and is controlled by a one-way valve (9).

7. The belt temperature protection adjustable fixing bracket according to claim 1, characterized in that: The top ends of the temperature probe (8) and the spray head (7) are respectively directed toward the active roller (1).

8. The belt temperature protection adjustable fixing bracket according to claim 1, characterized in that: The top ends of the first clamping jaw (301) and the second clamping jaw (302) are respectively provided with extension parts, the extension parts and the first clamping jaw (301) and the second clamping jaw (302) are arranged in an L shape, and the extension parts are in contact with the support frame (2).

9. The belt temperature protection adjustable fixing bracket according to claim 1, characterized in that: The contact ends of the first clamping jaw (301), the second clamping jaw (302) and the support frame (2) are all provided with anti-slip pads.

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