Friction type elevator anti-falling protection device

Abstract

The utility model discloses a friction type elevator anti-falling protection device which comprises an installation frame, an elevator body is fixedly installed on the top face of the installation frame, and an anti-falling mechanism is arranged on the top face of the installation frame and used for preventing a transported object from falling when the elevator body breaks down. The clamping device is arranged on the top face of the installation frame and used for clamping the two sides of a roller of the elevator body to prevent the roller from rotating. According to the anti-falling protection device of the friction type elevator, the friction plate is conveniently disassembled through the arranged positive and negative screw rod and the connecting plate, the positive and negative screw rod is rotated to drive the connecting block to move towards the opposite side during disassembly, at the moment, the connecting block drives the inserting plate to be pulled out from the interior of the inserting groove, and then the connecting plate can be directly pulled to be taken out from the interior of the connecting groove; and meanwhile, the connecting plate drives the friction plate to be taken out of the fixing frame through the mounting plate, dismounting is convenient, the mining efficiency is prevented from being affected, and practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to mining instrument technical field, concretely is a friction type hoist anti -fall protection device. BACKGROUND

[0002] Mining hoist, also called mine hoist or mine hoist, is the main transport equipment in mining engineering that contacts underground and ground, and in order to ensure the safety of hoist in the running process, usually needs to use anti -fall protection device.

[0003] Referring to the anti -fall protection device of friction type hoist disclosed in the patent application with the publication number CN219950348U, the utility model has the advantages that the friction plate can be conveniently disassembled and replaced, the friction plate can be disassembled and replaced, the friction plate is avoided to be damaged after long -term use, thereby affecting the anti -fall protection of subsequent hoist.

[0004] However, the device is through the rotation hand wheel through the block to the position of fixed friction plate, and when needing to disassemble and replace the friction plate, the operator needs to rotate the hand wheel one by one to disassemble the friction plate, and it is inconvenient to disassemble and replace, which affects the mining efficiency and the general practicality. UTILITY MODEL CONTENTS

[0005] In view of the defects of the prior art, the utility model provides a friction type hoist anti -fall protection device, which solves the problems of the prior art, such as inconvenient disassembly and replacement of friction plate, which affects the mining efficiency and the general practicality.

[0006] To achieve the above purpose, the utility model realizes the following technical scheme: a friction type hoist anti -fall protection device, comprising a mounting frame, the top surface of the mounting frame is fixedly installed with a hoist body, the top surface of the mounting frame is provided with an anti -fall mechanism for preventing the transport object from falling when the hoist body fails, the anti -fall mechanism comprises:

[0007] A clamping assembly is arranged on the top surface of the mounting frame for clamping the two sides of the roller of the hoist body to prevent the roller from rotating, the clamping assembly comprises a rear plate fixedly installed on the rear side of the top surface of the mounting frame, and the left and right sides of the front side of the rear plate are fixedly installed with a fixed frame, and the left and right sides of the inner cavity of the fixed frame are movably installed with a friction plate;

[0008] The position limiting assembly is arranged on the inner side of the fixing frame and used for fixing the position of the friction plate, and comprises a connecting groove arranged on the rear side of the inner cavity of the fixing frame, a connecting plate movably arranged in the connecting groove, an installation plate fixedly arranged on the front side of the connecting plate, a sliding groove arranged on the top surface and the bottom surface of the front side of the installation plate, a sliding block fixedly arranged on the top surface and the bottom surface of the rear side of the friction plate, and a limiting rod fixedly arranged in the sliding groove.

[0009] Preferably, the fixing assembly comprises a connecting frame fixedly arranged on the front side of the rear plate, a forward and reverse screw rod movably arranged on the inner side of the connecting frame, and a connecting block movably arranged on the left and right ends of the inner side of the connecting frame.

[0010] Preferably, the top surface of the connecting groove penetrates the inner part of the fixing frame and extends to the top surface of the fixing frame, the rear side of the sliding block is slidably arranged in the sliding groove, the left and right ends of the limiting rod movably penetrate the opposite sides of the sliding block and are fixedly arranged on the inner side of the sliding groove, and the left and right ends of the spring are fixedly arranged on the opposite sides of the sliding block.

[0011] Preferably, the left and right ends of the forward and reverse screw rod are threadedly arranged on the opposite sides of the connecting block and movably arranged on the inner side of the connecting frame, and one side of the plug plate movably penetrates the inner side of the connecting frame and the opposite side of the fixing frame and extends to the inner part of the plug groove.

[0012] Preferably, the clamping assembly further comprises a gas cylinder fixedly arranged on the left and right sides of the fixing frame, a connecting head fixedly arranged on the output end of the gas cylinder, and a clamping groove arranged on the side of the friction plate close to the gas cylinder.

[0013] Preferably, the output end of the gas cylinder movably penetrates the outer side of the fixing frame and is fixedly arranged on one end of the connecting head, and the outer side of the connecting head is close to the inner side of the clamping groove.

[0014] The utility model provides a kind of friction hoist anti-falling protection device.Compared with prior art, it has the following beneficial effects:

[0015] (1), the friction hoist anti-falling protection device, the forward and reverse screw rod and the connecting plate are arranged, and the friction plate is conveniently disassembled, the connecting block is driven to move to the opposite side by rotating the forward and reverse screw rod when disassembling, the connecting block will drive the plug plate to be pulled out from the inner part of the plug groove at this time, then the connecting plate can be directly pulled out from the inner part of the connecting groove, and the friction plate is taken out from the inner part of the fixing frame by the installation plate driven by the connecting plate, so as to facilitate disassembly, avoid affecting mining efficiency, and good practicability.

[0016] (2), the friction type hoist anti-falling protection device, through the setting of the cylinder and the friction plate can hold the two sides of the hoist body roller and realize the anti-falling protection, when the hoist body fails, the control box of the device will control the cylinder to start the connecting head and make the friction plate move to the opposite side and clamp the two sides of the hoist body roller to avoid the rotation of the roller, realize the anti-falling function, improve the safety of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the three-dimensional appearance schematic view of the utility model;

[0018] Figure 2 It is the three-dimensional appearance schematic view of the anti-falling mechanism of the utility model;

[0019] Figure 3 It is the three-dimensional appearance schematic view of the anti-falling mechanism of the utility model;

[0020] Figure 4 It is the three-dimensional appearance schematic view of the clamping assembly of the utility model;

[0021] Figure 5 It is the three-dimensional appearance schematic view of the clamping assembly of the utility model.

[0022] In the drawing: 1 - mounting frame, 2 - anti-falling mechanism, 21 - clamping assembly, 211 - back plate, 212 - cylinder, 213 - friction plate, 214 - fixed frame, 215 - clamping groove, 216 - connecting head, 22 - limiting assembly, 221 - connecting plate, 222 - connecting groove, 223 - connecting frame, 224 - positive and negative screw rod, 225 - connecting block, 226 - plugboard, 227 - mounting plate, 228 - sliding slot, 229 - spring, 2210 - slot, 2211 - limiting rod, 2212 - sliding block, 3 - hoist body. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Referring to Figures 1-5 The utility model provides two technical schemes:

[0025] The first embodiment is a kind of friction hoist anti-falling protection device, including mounting bracket 1, the top surface of mounting bracket 1 is fixedly installed with hoist body 3, and hoist body 3 is existing device here is not too much repetition, the top surface of mounting bracket 1 is provided with anti-falling mechanism 2 for preventing the transport object from falling when hoist body 3 fails, and anti-falling mechanism 2 includes:

[0026] Clamping assembly 21 is arranged on the top surface of mounting bracket 1 for clamping the two sides of the roller of hoist body 3 to prevent the rotation of the roller, and clamping assembly 21 includes rear plate 211 fixedly installed on the top surface of mounting bracket 1 rear side, and left and right sides of the front side of rear plate 211 are fixedly installed with fixed frame 214, and the left and right sides of the inner cavity of fixed frame 214 are movably installed with friction plate 213, and the two ends of the roller of hoist body 3 are located between friction plate 213;

[0027] The limiting assembly 22 is arranged at the inner side of the fixed frame 214 and is used for fixing the position of the friction plate 213. The limiting assembly 22 comprises a connecting groove 222 arranged at the rear side of the inner cavity of the fixed frame 214. A connecting plate 221 is movably arranged in the connecting groove 222. The connecting plate 221 is convex. An installation plate 227 is fixedly arranged at the front side of the connecting plate 221. Sliding grooves 228 are arranged at the top surface and the bottom surface of the front side of the installation plate 227. Sliding blocks 2212 are fixedly arranged at the top surface and the bottom surface of the rear side of the friction plate 213. The sliding blocks 2212 are convex. Limiting rods 2211 are fixedly arranged in the sliding grooves 228. Springs 229 are movably arranged at the outer side of the limiting rods 2211. The position of the springs 229 can be limited by the limiting rods 2211. A fixing assembly is arranged at the front side of the rear plate 211 and is used for fixing the position of the connecting plate 221. The fixing assembly comprises a connecting frame 223 fixedly arranged at the front side of the rear plate 211. Forward and reverse screw rods 224 are movably arranged at the inner side of the connecting frame 223. Connecting blocks 225 are movably arranged at the left and right ends of the inner side of the connecting frame 223. Plug plates 226 are fixedly arranged at the side of the connecting blocks 225 close to the fixed frame 214. Plug grooves 2210 are arranged at the opposite sides of the connecting plate 221. The top surface of the connecting groove 222 penetrates the inner part of the fixed frame 214 and extends to the top surface of the fixed frame 214. The rear side of the sliding blocks 2212 is movably arranged in the sliding grooves 228. The left and right ends of the limiting rods 2211 movably penetrate the opposite sides of the sliding blocks 2212 and are fixedly arranged at the inner side of the sliding grooves 228. The left and right ends of the springs 229 are fixedly arranged at the opposite sides of the sliding blocks 2212. The sliding blocks 2212 can be moved by the elastic force of the springs 229 to position the friction plate 213. The left and right ends of the forward and reverse screw rods 224 are threadedly penetrated the opposite sides of the connecting blocks 225 and are movably arranged at the inner side of the connecting frame 223. One side of the plug plate 226 movably penetrates the inner side of the connecting frame 223 and the opposite side of the fixed frame 214 and extends to the inner part of the plug groove 2210. The connecting blocks 225 can be moved by rotating the forward and reverse screw rods 224 to insert the plug plate 226 into the inner part of the plug groove 2210 to fix the position of the connecting plate 221.

[0028] The forward and reverse screw rods 224 and the connecting plate 221 are arranged to facilitate the disassembly of the friction plate 213. When disassembling, the connecting blocks 225 are moved to the opposite side by rotating the forward and reverse screw rods 224. At this time, the connecting blocks 225 will pull out the plug plate 226 from the inner part of the plug groove 2210. Then, the connecting plate 221 can be directly pulled out from the inner part of the connecting groove 222. At the same time, the friction plate 213 will be taken out of the inner part of the fixed frame 214 by the connecting plate 221 through the installation plate 227. This facilitates disassembly and avoids affecting the mining efficiency. The utility is good.

[0029] The second embodiment has the main difference from the first embodiment that the clamping assembly 21 further comprises air cylinders 212 fixedly installed on the left and right sides of the fixed frame 214, the input ends of the air cylinders 212 are electrically connected with the output ends of the device controller, the air cylinders 212 can be started to realize the anti-falling protection when the lifting machine body 3 fails, the output ends of the air cylinders 212 are fixedly installed with connecting heads 216, the cross sections of the connecting heads 216 are in the shape of an I-beam, the side close to the air cylinders 212 of the friction plates 213 is provided with clamping grooves 215, the output ends of the air cylinders 212 movably penetrate the outer sides of the fixed frame 214 and are fixedly installed at one end of the connecting heads 216, and the connecting heads 216 can drive the friction plates 213 to move to the opposite sides to clamp the two sides of the roller of the lifting machine body 3 to realize the anti-falling function when the air cylinders 212 are started, the outer sides of the connecting heads 216 are close to the inner sides of the clamping grooves 215, and the connecting heads 216 can connect the friction plates 213 and the output ends of the air cylinders 212 together through the clamping grooves 215 to improve the stability of the friction plates 213 when moving.

[0030] The air cylinders 212 and the friction plates 213 can clamp the two sides of the roller of the lifting machine body 3 to realize the anti-falling protection, when the lifting machine body 3 fails, the control box of the device controls the air cylinders 212 to be started to drive the connecting heads 216 to move the friction plates 213 to the opposite sides to clamp the two sides of the roller of the lifting machine body 3 to avoid the rotation of the roller, thereby realizing the anti-falling function and improving the safety of the device.

[0031] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art, and the model parameters of various electrical appliances are not specifically limited and can be used with conventional equipment.

[0032] In use, the device is installed at a suitable position, when the lifting machine body 3 fails, the control box of the device controls the air cylinders 212 to be started to drive the connecting heads 216 to move the friction plates 213 to the opposite sides to clamp the two sides of the roller of the lifting machine body 3 to avoid the rotation of the roller, thereby realizing the anti-falling function, when it is necessary to dismount and replace the friction plates 213, the positive and negative screw rods 224 are rotated to drive the connecting blocks 225 to move to the opposite sides, at this time, the connecting blocks 225 drive the plug plates 226 to be pulled out from the inside of the plug grooves 2210, then the connecting plates 221 can be directly pulled out from the inside of the connecting grooves 222, at the same time, the connecting plates 221 drive the friction plates 213 to be taken out from the inside of the fixed frame 214 through the mounting plates 227, then a new friction plate 213 is taken, the connecting plate 221 is inserted into the inside of the connecting groove 222, at this time, the connecting head 216 is clamped in the inside of the clamping groove 215 to connect the friction plate 213 with the output end of the air cylinder 212, and then the positive and negative screw rods 224 are reversely rotated to drive the connecting blocks 225 to move to insert the plug plates 226 into the inside of the plug grooves 2210 to fix the position of the connecting plates 221 to complete the installation.

[0033] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process or method.

[0034] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. A fall protection device for a friction hoist comprising a mounting bracket (1), characterised in that: The top surface of the mounting frame (1) is fixedly provided with a lifting machine body (3), and the top surface of the mounting frame (1) is provided with an anti-falling mechanism (2) for preventing the falling of the transported object when the lifting machine body (3) fails, and the anti-falling mechanism (2) comprises: A clamping assembly (21) is arranged on the top surface of the mounting frame (1) for clamping the two sides of the roller of the lifting machine body (3) to prevent the roller from rotating, and the clamping assembly (21) comprises a rear plate (211) fixedly arranged on the top surface of the mounting frame (1) rear side, and the left and right sides of the front side of the rear plate (211) are fixedly provided with a fixed frame (214), and the left and right sides of the inner cavity of the fixed frame (214) are movably provided with a friction plate (213). A limiting assembly (22) is arranged on the inner side of the fixed frame (214) for fixing the position of the friction plate (213), and the limiting assembly (22) comprises a connecting groove (222) opened on the inner cavity rear side of the fixed frame (214), and the inner side of the connecting groove (222) is movably provided with a connecting plate (221), and the front side of the connecting plate (221) is fixedly provided with a mounting plate (227), and the top surface and the bottom surface of the front side of the mounting plate (227) are both provided with a sliding groove (228), and the top surface and the bottom surface of the rear side of the friction plate (213) are both fixedly provided with a sliding block (2212), and the inner side of the sliding groove (228) is fixedly provided with a limiting rod (2211), and the outer side of the limiting rod (2211) is movably provided with a spring (229), and the front side of the rear plate (211) is provided with a fixing assembly for fixing the position of the connecting plate (221).

2. A fall arrest device for a friction hoist as claimed in claim 1, wherein: The fixing assembly comprises a connecting frame (223) fixedly arranged on the front side of the rear plate (211), and the inner side of the connecting frame (223) is movably provided with a forward and reverse screw rod (224), and the left and right ends of the inner side of the connecting frame (223) are movably provided with a connecting block (225), and the side close to the fixed frame (214) of the connecting block (225) is fixedly provided with a plug-in plate (226), and the opposite sides of the connecting plate (221) are both provided with a plug-in groove (2210).

3. The friction hoist fall arrest device of claim 1, wherein: The top surface of the connecting groove (222) penetrates the inner side of the fixed frame (214) and extends to the top surface of the fixed frame (214), the rear side of the sliding block (2212) is slidingly arranged in the inner side of the sliding groove (228), the left and right ends of the limiting rod (2211) movably penetrate the opposite sides of the sliding block (2212) and are fixedly arranged in the inner side of the sliding groove (228), and the left and right ends of the spring (229) are fixedly arranged in the opposite sides of the sliding block (2212).

4. A fall arrest device for a friction hoist as claimed in claim 2, wherein: The left and right ends of the forward and reverse screw rod (224) are threadedly penetrated through the opposite sides of the connecting block (225) and movably arranged in the inner side of the connecting frame (223), and one side of the plug-in plate (226) movably penetrates the inner side of the connecting frame (223) and the opposite side of the fixed frame (214) and extends to the inner side of the plug-in groove (2210).

5. A fall arrest device for a friction hoist as claimed in claim 1, characterised in that: The clamping assembly (21) further comprises air cylinders (212) fixedly installed on the left and right sides of the fixed frame (214), output ends of the air cylinders (212) are fixedly installed with connecting heads (216), and the friction plate (213) is provided with a clamping groove (215) on one side close to the air cylinders (212).

6. A fall arrest device for a friction hoist as claimed in claim 5, wherein: The output end of the air cylinder (212) movably penetrates the outer side of the fixed frame (214) and is fixedly installed at one end of the connecting head (216), and the outer side of the connecting head (216) is tightly attached to the inner side of the clamping groove (215).

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