Dismounting protection device for machine head protection net of rubber belt conveyor

Abstract

The utility model discloses a belt conveyor head protection net dismounting protection device, all cables of the device are connected in series, all belt protection net hanging parts are connected in series, the purpose of stopping belt operation is finally achieved, meanwhile, the device is arranged between a protection net and a belt conveyor, and when the protection net is dismounted, the protection net can be dismounted conveniently. When the belt conveyor is turned off, the handle automatically falls down and rotates to drive the first connecting rod to rotate, then the first connecting rod drives the second connecting rod to further push the sliding block to slide to separate the two contacts, and therefore automatic closing control over the belt conveyor is achieved, in addition, the sliding block can be moved by installing the device and rotating the lead screw, and then the sliding rod slides; the sliding rod moves to drive the clamping rod to change the angle so as to clamp the large frame of the head of the belt conveyor, the clamping rod adopts an arc-shaped design and can clamp large frames in different shapes, so that the practicability of the device is improved, meanwhile, the rolling wheels and the mounting wheels are arranged on the clamping rod, the friction force between the clamping rod and the sliding rod is reduced, and during mounting, the clamping rod is not prone to falling off. And the mounting wheels are attached to the surface of the large frame to rotate for mounting, so that mounting is convenient, dismounting can be conducted by adjusting the lead screw during dismounting, and the device is simple, durable and low in manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor equipment, in particular to a belt conveyor head guard net disassembly protection device. Background Art

[0002] After the belt conveyor belt head guard net is disassembled, due to personal operating habits and ideological awareness, people often forget to reinstall the belt guard net, which can easily cause belt injuries caused by misoperation of the belt.

[0003] In the excavation and extension belt project, there were violations such as failure to install the guardrail in time after dismantling the guardrail to adjust the wire rope and re-coiling it; during the operation of the belt conveyor, violations such as cleaning the floating coal under the belt head or not locking the belt to adjust the belt deviation led to belt conveyor injury accidents, posing a major hidden danger to personal safety and the normal production of the enterprise. Utility Model Content

[0004] The utility model aims to provide a protective device for removing the head guard net of a belt conveyor. In view of the situation that there are many guard nets and linkage action is required, a locking device is added to stop the belt operation after the belt guard net is removed, that is, an open-stop (open-close) protective device is made, so that the protective device can be actuated after any of the guard nets are removed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a belt conveyor head guard net disassembly protection device, which is installed between the belt conveyor head and the guard net, and is controlled by serial linkage through a line, including a shell, a grounding wire, a mounting device and a control device, wherein the shell is an open shell formed by welding steel plates, a closing plate is hinged at the top of the shell opening, a mounting device is arranged at the bottom of the shell, a linkage groove is arranged on the right side closed end of the shell, a control device is connected to the linkage groove, a vertically set hollow steel pipe is welded inside the shell for protecting the serial cable, a grounding wire is arranged inside the hollow steel pipe, the grounding wire is connected to the ground cable, and is connected in series with the other protection devices, a slide groove is arranged at the right end of the hollow steel pipe, a sliding block is slidably matched on the slide groove, a contact plate is arranged at the left end of the slide groove, and the contact line of the serial cable and the contact plate is connected,

[0006] The control device includes a connecting plate, a rotating shaft, a handle, a first connecting rod, and a second connecting rod. Hexagonal nuts are respectively provided on the left and right sides of the linkage groove. The hexagonal nuts are fixedly connected to the outer shell. The rotating shaft is inserted into the hexagonal nuts. A connecting plate is provided between the two hexagonal nuts and is fixedly connected to the rotating shaft. The handle is fixedly connected to the connecting plate. The first connecting rod is fixedly connected to the rotating shaft. The second connecting rod is hinged to the top end of the first connecting rod, and the second connecting rod is hinged to the sliding block.

[0007] The installation device includes a base plate, a lead screw, a sliding rod, and a clamping rod. A connecting groove is provided on the base plate, and a sliding rod is slidably fitted on the connecting groove. A sliding block is fixedly connected to the other end, and the sliding block is engaged with the lead screw. A hand wheel is connected to the other end of the lead screw for adjusting the sliding rod. The clamping rods are hinged on the left and right sides of the top of the base plate respectively, and the bottom end of the clamping rod is in contact with the sliding rod for adjusting the clamping size.

[0008] Preferably, the clamping rod is designed to be arc-shaped and suitable for belt conveyor frames of different shapes.

[0009] Preferably, the sliding rod comprises a vertical rod and extension parts on left and right sides, the extension parts are arranged obliquely, and the oblique ends of the extension parts are in conflict with the clamping rod.

[0010] Preferably, a roller is hinged at the bottom end of the clamping rod, and the roller is made of rubber material and is used to reduce the friction with the sliding rod and increase the friction after clamping.

[0011] Preferably, a mounting wheel is hinged at the top end of the clamping rod for fitting against the surface of the belt conveyor frame during installation, thereby facilitating installation.

[0012] Preferably, a contact is provided at the left end of the sliding block for use in conjunction with a contact of the contact plate.

[0013] Preferably, the sliding block is made of insulating material to prevent leakage after the sliding block and the contact plate are attached to each other, thereby protecting personnel safety.

[0014] Preferably, the handle is L-shaped, and the lateral end of the handle is in contact with the protective net, so as to control the device to stop the belt conveyor after the protective net is removed.

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

[0016] By connecting all the cables of the device in series, all the belt guard net hanging positions are connected in series, and finally the goal of stopping the belt operation is achieved. At the same time, the device is arranged between the guard net and the belt conveyor. When the guard net is removed, the handle will automatically fall and rotate, driving the first connecting rod to rotate, and the first connecting rod will drive the second connecting rod, thereby pushing the sliding block to slide, separating the two contacts, thereby realizing automatic closing control of the belt conveyor. In addition, by installing the device and rotating the lead screw, the slider can be moved, and then the sliding rod can be made to slide. The movement of the sliding rod will drive the clamping rod to change the angle, thereby clamping the belt conveyor head frame. The clamping rod adopts an arc design and can clamp frames of different shapes, thereby increasing the practicality of the device. At the same time, the rollers and mounting wheels arranged on the clamping rod reduce the friction between the sliding rod, and during installation, the mounting wheel is rotated in contact with the surface of the frame for installation, which makes installation convenient, and the lead screw can be adjusted for disassembly. The device is simple, durable and has low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall front structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the shell structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the control device of the utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the installation device of the utility model.

[0021] In the figure: 1. shell; 101. hollow steel pipe; 102. slide groove; 2. ground wire; 3. mounting device; 301. bottom plate; 302. lead screw; 303. sliding rod; 304. clamping rod; 4. control device; 401. connecting plate; 402. rotating shaft; 403. first connecting rod; 404. second connecting rod; 405. sliding block; 5. linkage groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] 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.

[0026] Example 1: Please refer to Figure 1-2 The utility model provides an embodiment: a belt conveyor head guard net disassembly protection device, which is installed between the belt conveyor head and the guard net, and is controlled by a series linkage of lines, including a shell 1, a grounding wire 2, and the grounding wire 2 is used to protect the device and the operator from electric shock, and to guide the current into the ground to ensure safety, an installation device 3 and a control device 4. The shell 1 is an open shell formed by welding steel plates. A closing plate is hinged at the top of the opening of the shell 1, which provides structural support and protection for the main body of the entire device. Its opening design is convenient for installation and maintenance, and the closing plate is used to cover the opening of the shell 1 to increase safety. The bottom end of the shell 1 is provided with a mounting device 3, and the mounting device 3 is located at the bottom end of the shell 1 and is used to firmly fix the device in the desired position. A linkage groove 5 is provided on the closed end of the right end of the shell 1, and a control device 4 is connected to the linkage groove 5. A vertically set hollow steel pipe 101 is welded inside the shell 1 to protect the series cable. The hollow steel pipe 101 is used to protect the series cable to prevent it from being damaged or externally interfered. A grounding wire 2 is provided in the hollow steel pipe 101, and the grounding wire 2 is connected to the ground cable and is connected in series with the remaining protection devices. A slide groove 102 is provided at the right end of the hollow steel pipe 101, and a sliding block 405 is slidably matched on the slide groove 102. A contact plate is provided at the left end of the slide groove 102, and the contact line of the series cable is connected to the contact plate, and the contact of the contact plate is used in conjunction with the contact of the sliding block 405 to control the closing and opening of the circuit, thereby controlling the operation of the conveyor.

[0027] The control device 4 includes a connecting plate 401, a rotating shaft 402, a handle, a first connecting rod 403, and a second connecting rod 404. Hexagonal nuts are respectively arranged on the left and right sides of the linkage groove 5. The hexagonal nuts are fixedly connected to the housing 1. The rotating shaft 402 is inserted into the hexagonal nuts. A connecting plate 401 is arranged between the two hexagonal nuts and fixedly connected to the rotating shaft 402. The rotating shaft 402 serves as the rotation center of the device and is fixed in the middle of the hexagonal nuts so that the entire device can rotate. The connecting plate 401 is fixedly connected to the handle, the rotating shaft 402 is fixedly connected to the first connecting rod 403, the top end of the first connecting rod 403 is hinged with the second connecting rod 404, the second connecting rod 404 is hinged to the sliding block 405, the second connecting rod 404 connects the first connecting rod 403 and the sliding block 405, and moves according to the operation of the handle. The position of the sliding block 405 is controlled by the movement of the second connecting rod 404. A contact is arranged on the left end of the sliding block 405 for use in conjunction with the contact of the contact plate to achieve passage or disconnection.

[0028] The left end of the sliding block 405 is provided with a contact point, which cooperates with the contact point of the contact plate.

[0029] The sliding block 405 is made of insulating material, which is used to prevent leakage after the sliding block 405 and the contact plate are attached, and protect the safety of personnel. The sliding block 405 is made of insulating material, which can effectively prevent leakage after the sliding block 405 and the contact plate are attached, improve the safety of the device, and protect the safety of users.

[0030] The handle is L-shaped, and the lateral end of the handle is attached to the guard net, so that the control device 4 stops the belt conveyor from running after the guard net is removed. The handle is L-shaped and attached to the guard net, so that the handle rotates and falls freely through the rotating shaft 402 after the guard net is removed, driving the first connecting rod 403 to rotate, and the first connecting rod 403 drives the second connecting rod 404 to rotate, so that the second connecting rod 404 drives the sliding block 405 to slide, and separates the contact on the sliding block 405 from the contact on the contact plate, disconnects the circuit, and stops the belt conveyor from running. During installation, the handle is rotated, and the handle drives the connecting plate 401 to rotate, so that the second connecting rod 404 drives the sliding block 405 to slide, and the contact on the sliding block 405 is attached to the contact on the contact plate, and the circuit is opened, and then the guard net is installed to realize the operation of the belt conveyor. Due to the simple structure and the firm connection between the components, it has high reliability and stability and can work stably for a long time.

[0031] Example 2: Please refer to Figure 3 , based on Example 1, it also has the following structure:

[0032] The mounting device 3 includes a base plate 301, a lead screw 302, a sliding rod 303, and a clamping rod 304. A connecting groove is provided on the base plate 301, which provides a basic support for the device. A connecting groove is provided on the base plate 301 for fixing the sliding rod 303. The sliding rod 303 is slidably matched on the connecting groove, and a slider is fixedly connected to the other end. The slider is engaged with the lead screw 302. The lead screw 302 adjusts the position of the sliding rod 303 by rotating a hand wheel to adjust the size of the clamping. The other end of the lead screw 302 is connected to a hand wheel for adjusting the sliding rod 303. The clamping rods 304 are hinged on the left and right sides of the top of the base plate 301. 4. The bottom end of the clamping rod 304 is in conflict with the sliding rod 303, which is used to adjust the clamping size. The position of the clamping rod 304 is controlled by adjusting the sliding rod 303, so as to adjust the clamping force of the belt conveyor frame. The bottom end of the clamping rod 304 is hinged with a roller, which is made of rubber and is used to reduce the friction with the sliding rod 303 and increase the friction after clamping. The top end of the clamping rod 304 is hinged with a mounting wheel. The design of the mounting wheel allows the device to easily fit the surface of the belt conveyor frame, which is more convenient and quick during the installation process. It is used to fit the surface of the belt conveyor frame during installation, which is convenient for installation. The clamping rod 304 clamps the belt conveyor frame, and the bottom end of the clamping rod 304 is hinged with a roller to reduce the friction with the sliding rod 303 and increase the friction after clamping. The top end is hinged with a mounting wheel for fitting the surface of the belt conveyor frame during installation. The sliding rod 303 includes a vertical rod and extensions on the left and right sides. The extensions are obliquely arranged, and the oblique ends of the extensions are in conflict with the clamping rod 304. The clamping rod 304 is an arc-shaped design for use with belt conveyor frames of different shapes. When in use, fit the clamping rod 304 to the belt conveyor frame, then turn the hand wheel to drive the screw 302 to rotate, and the slider moves on the screw 3 02 slides up, driving the sliding rod 303 to slide, and then the extended part of the sliding rod 303 slides up or down, driving the clamping rod 304 to rotate, and at the same time the installation wheel slides to reduce the friction with the frame. After the clamping rod 304 clamps and fixes the frame, stop turning the handwheel to complete the clamping and fixing installation. The clamping rod 304 adopts an arc design, which can adapt to different shapes of belt conveyor frames, thereby improving the versatility and adaptability of the device. The bottom end of the clamping rod 304 is hinged with a roller, which can reduce the friction with the sliding rod 303 and increase the friction after clamping, thereby improving the stability and clamping effect of the device.

[0033] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A belt conveyor head guard net disassembly protection device, installed between the belt conveyor head and the guard net, controlled by line series linkage, characterized in that: The invention comprises a shell (1), a grounding wire (2), a mounting device (3) and a control device (4), wherein the shell (1) is an open shell formed by welding steel plates, a closing plate is hingedly connected to the top of the opening of the shell (1), the bottom of the shell (1) is provided with a mounting device (3), a linkage groove (5) is provided on the right side closed end of the shell (1), the linkage groove (5) is connected to the control device (4), a vertically erected hollow steel pipe (101) is welded inside the shell (1) for protecting the serially connected cables, and a control device (4) is provided inside the hollow steel pipe (101) There is a grounding wire (2), which is connected to the ground cable and connected in series with other protective devices. A slide groove (102) is provided at the right end of the hollow steel pipe (101), and a sliding block (405) is slidably matched on the slide groove (102). A contact plate is provided at the left end of the slide groove (102), and the serial cable is connected to the contact line of the contact plate. The control device (4) includes a connecting plate (401), a rotating shaft (402), a handle, a first connecting rod (403), and a second connecting rod (404). The left and right sides of the linkage groove (5) are respectively provided with A hexagonal nut is provided, which is fixedly connected to the housing (1), a rotating shaft (402) is inserted into the hexagonal nut, a connecting plate (401) is provided between the two hexagonal nuts, which is fixedly connected to the rotating shaft (402), a handle is fixedly connected to the connecting plate (401), a first connecting rod (403) is fixedly connected to the rotating shaft (402), a second connecting rod (404) is hinged at the top end of the first connecting rod (403), and the second connecting rod (404) is hinged to a sliding block (405), and the mounting device (3) comprises a bottom plate (301), A lead screw (302), a sliding rod (303), and a clamping rod (304); a connecting groove is provided on the base plate (301); a sliding rod (303) is slidably fitted on the connecting groove; a slider is fixedly connected to the other end; the slider is engaged with the lead screw (302); a hand wheel is connected to the other end of the lead screw (302) for adjusting the sliding rod (303); the clamping rod (304) is hinged on the left and right sides of the top of the base plate (301) respectively; the bottom end of the clamping rod (304) is in contact with the sliding rod (303) for adjusting the clamping size.

2. The belt conveyor head guard net disassembly protection device according to claim 1 is characterized in that: The clamping rod (304) is designed to be arc-shaped and suitable for belt conveyor frames of different shapes.

3. The belt conveyor head guard net disassembly protection device according to claim 1 is characterized in that: The sliding rod (303) comprises a vertical rod and extension parts on the left and right sides. The extension parts are arranged obliquely, and the oblique ends of the extension parts are in conflict with the clamping rod (304).

4. The belt conveyor head guard net disassembly protection device according to claim 1 is characterized in that: The bottom end of the clamping rod (304) is hinged with a roller, which is made of rubber and is used to reduce the friction with the sliding rod (303) and increase the friction after clamping.

5. The belt conveyor head guard net disassembly protection device according to claim 1 is characterized in that: The top end of the clamping rod (304) is hinged with a mounting wheel, which is used to fit the surface of the belt conveyor frame during installation, making installation easier.

6. The belt conveyor head guard net disassembly protection device according to claim 1 is characterized in that: The left end of the sliding block (405) is provided with a contact point for use in conjunction with the contact point of the contact plate.

7. The belt conveyor head guard net disassembly protection device according to claim 1 is characterized in that: The sliding block (405) is made of insulating material, and is used to prevent leakage of electricity after the sliding block (405) is attached to the contact plate, thereby protecting personnel safety.

8. The belt conveyor head guard net disassembly protection device according to claim 1 is characterized in that: The handle is L-shaped, and the lateral end of the handle is in contact with the protective net, and is used to control the device (4) to stop the belt conveyor after the protective net is removed.

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