Elevator buffer compression test device

Abstract

The utility model relates to elevator buffer test technical field, and disclose a kind of elevator buffer compression test device, its structure includes organism, positioning device, driving mechanism, lifting device, reciprocating mechanism, the utility model has beneficial effect: by being additionally provided with positioning device on elevator buffer organism, driven gear disc rotation is driven by initiative gear, gear disc is driven by helical strip and synchronously does clamping motion to several clamping blocks, the fast clamping of elevator buffer is carried out, the efficiency of test is improved, and different specifications diameter's elevator buffer can be clamped, and then driven chain operation is driven by speed reducer motor set, the rotation of its other end's main shaft is driven by the operation of chain, the meshing of bevel gear on main shaft and driven gear is passed through, synchronously drive the rotation of two groups of ball screws on two sides, to drive guiding seat and the height of L type plate located on guiding seat to move up and down and adjust the height of weight block, to simulate the impact force of elevator falling at different heights.

Description

Technical Field

[0001] This utility model relates to the field of elevator buffer testing technology, specifically an elevator buffer compression testing device. Background Technology

[0002] Elevator buffers are key safety devices installed at the bottom of the elevator shaft, forming the last physical protective barrier of the elevator system. Their main function is to absorb the impact kinetic energy of the car or counterweight in extreme situations such as wire rope breakage or insufficient traction. Through deceleration and buffering, they prevent the car from directly hitting the bottom or top of the shaft, thereby protecting the safety of elevator passengers.

[0003] Based on the above, elevator buffers need to be tested before they are put into use. Existing elevator buffers are usually tested by suspending a weight block with a steel wire rope and then dropping it. However, this method is difficult to simulate the environment of an elevator car falling because the steel wire rope is under tension when it falls, which reduces the accuracy of the test data. Utility Model Content

[0004] 1. The technical problem to be solved by this utility model

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an elevator buffer compression test device, which has the function of simulating the compression test of the elevator car on the elevator buffer.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An elevator buffer compression test device includes a body, a positioning device, a drive mechanism, a lifting device, and a weight block. The positioning device is fixedly installed at the bottom of the body, the drive mechanism is installed at the top of the body, the two ends of the drive mechanism are fitted with lifting devices, and the weight block is placed on the lifting device.

[0009] As an optimization, the drive mechanism includes a geared motor assembly, a chain, a main shaft, bevel gears, and a driven gear. The output end of the geared motor assembly is rotatably fitted with a chain, and the other end of the chain is fitted with the main shaft through a gear. Both ends of the main shaft are fixed with bevel gears, and both bevel gears are meshed with driven gears.

[0010] As an optimization, the lifting device includes a ball screw, a guide seat, a guide rail, a slider, an L-shaped plate, and a reciprocating mechanism. The top end of the ball screw is connected to the driven gear. A guide seat is slidably fitted on the ball screw via a guide member. Guide rails are provided on both sides of the ball screw, and sliders are slidably fitted on both guide rails. One side of the slider and the guide seat is fixed to the L-shaped plate. A reciprocating mechanism capable of supporting and placing the weight block is installed on the L-shaped plate.

[0011] As an optimization, the ball screw and guide rail are both mounted on the machine body.

[0012] As an optimization, the reciprocating mechanism includes a mounting frame, a roller, a reciprocating groove, a motor, a moving part, and a placement box. The roller is rotatably fitted on the mounting frame, one end of the roller is connected to the motor, the roller has a reciprocating groove, and the moving part is slidably fitted on the reciprocating groove. One end of the moving part is connected to the placement box.

[0013] As an optimization, the movable component includes a locking block, a limiting rod, and a push rod. The locking block and the limiting rod are slidably engaged. The limiting rod is fixed on the mounting frame. A push rod is fixed to one side of the locking block, and the other end of the push rod is connected to the placement box.

[0014] As an optimization, the positioning device includes a drive gear, a gear disc, clamping blocks, a limiting disc, and a spiral strip. The drive gear is mounted on the machine body and its bottom is connected to a motor at the bottom of the machine body. A gear disc meshes with one side of the drive gear, and a spiral strip is fixed to one side of the gear disc. A clamping block is slidably fitted on the spiral strip. There are three sets of clamping blocks arranged in a circular array. All three sets of clamping blocks are located on the limiting disc and slidably fitted with the limiting disc. The limiting disc is mounted on the gear disc.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] (1) The present invention provides an elevator buffer compression test device. By adding a positioning device to the elevator buffer body, the drive gear drives the toothed disc to rotate. The rotation of the toothed disc will drive a number of clamping blocks that cooperate with the auger to perform clamping motion synchronously, thereby quickly clamping the elevator buffer. This facilitates quick positioning of the buffer, improves the efficiency of the test, and can clamp elevator buffers of different diameters, increasing its applicability.

[0018] (2) The present invention provides an elevator buffer compression test device, which drives the chain to run through a geared motor. The chain will drive the main shaft at the other end to rotate. The bevel gear on the main shaft meshes with the driven gear, and synchronously drives the two sets of ball screws on both sides to rotate. This drives the guide seat and the L-shaped plate on the guide seat to move up and down to adjust the height of the weight block, thereby simulating the impact force of the elevator falling at different heights.

[0019] (3) The present invention provides an elevator buffer compression test device. By adding a reciprocating mechanism to the lifting device, the roller is driven to rotate by a motor. The roller will drive the moving part and the placement box connected to the moving part to move back and forth. When the placement box retracts under the action of the roller, the weight block located on the placement box will lose support and fall onto the elevator buffer. This can simulate the state when the elevator falls. It is only affected by gravity and air resistance, which ensures the accuracy of the elevator buffer test. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an elevator buffer compression test device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the drive mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the lifting device of this utility model;

[0023] Figure 4 This is a schematic diagram of the reciprocating mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram showing the cooperation between the moving part and the reciprocating groove of this utility model;

[0025] Figure 6 This is a schematic diagram of the positioning device of this utility model;

[0026] Figure 7 This is a schematic diagram showing the cooperation between the clamping block and the gear plate of this utility model.

[0027] The attached diagram contains the following labels: Body-1, Positioning device-2, Drive mechanism-3, Lifting device-4, Weight block-5, Gear motor assembly-31, Chain-32, Main shaft-33, Bevel gear-34, Driven gear-35, Ball screw-41, Guide seat-42, Guide rail-43, Slider-44, L-shaped plate-45, Reciprocating mechanism-46, Mounting bracket-461, Roller-462, Reciprocating groove-463, Motor-464, Moving part-465, Placement box-466, Clamping block-11, Limiting rod-12, Push rod-13, Drive gear-21, Gear plate-22, Clamping block-23, Limiting plate-24, Spiral strip-25. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please see Figures 1-7 An elevator buffer compression test device is provided, the structure of which includes a body 1, a positioning device 2, a drive mechanism 3, a lifting device 4 and a weight block 5. The positioning device 2, which can position and install the elevator buffer, is fixedly installed at the bottom of the body 1. The drive mechanism 3 is installed at the top of the body 1. The two ends of the drive mechanism 3 are fitted with the lifting device 4. The weight block 5 is placed on the lifting device 4. The lifting device 4 drives the weight block 5 to rise and fall, which can simulate elevator drop tests at different heights.

[0031] In this embodiment, the drive mechanism 3 includes a geared motor 31, a chain 32, a main shaft 33, bevel gears 34, and a driven gear 35. The geared motor 31 is mounted on the machine body 1. The chain 32 is rotatably coupled to the output end of the geared motor 31. The other end of the chain 32 is coupled to the main shaft 33 through a gear. The operation of the chain 32 can drive the gear and the main shaft 33 to rotate. Both ends of the main shaft 33 are fixed with bevel gears 34. Both bevel gears 34 are meshed with driven gears 35. The driven gears 35 are located on the lifting device 4.

[0032] In this embodiment, the lifting device 4 includes a ball screw 41, a guide seat 42, a guide rail 43, a slider 44, an L-shaped plate 45, and a reciprocating mechanism 46. The top end of the ball screw 41 is connected to the driven gear 35, and the rotation of the driven gear 35 can synchronously drive the ball screw 41 to rotate together. The guide seat 42 is slidably fitted on the ball screw 41 through a guide member. Guide rails 43 are provided on both sides of the ball screw 41, and sliders 44 are slidably fitted on both guide rails 43. One side of the slider 44 and the guide seat 42 is fixed to the L-shaped plate 45, which will drive the L-shaped plate 45 to move up and down. The reciprocating mechanism 46, which can support and place the weight block 5, is installed on the L-shaped plate 45.

[0033] In this embodiment, the ball screw 41 and the guide rail 43 are both mounted on the machine body 1. The rotation of the driven gear 35 drives the ball screw 41 to rotate. Under the guidance of the guide member, the rotational motion is converted into linear motion, thereby driving the guide seat 42 and the L-shaped plate 45 located on the guide seat 42 to move up and down to adjust the height. This can simulate the impact force of an elevator falling at different heights. The guide rails 43 on both sides can increase the stability of the L-shaped plate 45 when it moves.

[0034] In this embodiment, the reciprocating mechanism 46 includes a mounting frame 461, a roller 462, a reciprocating groove 463, a motor 464, a moving part 465, and a placement box 466. The mounting frame 461 is fixed on the L-shaped plate 45. The roller 462 is rotatably fitted on the mounting frame 461. One end of the roller 462 is connected to the motor 464, which drives the roller 462 to rotate. The motor 464 is mounted on the L-shaped plate 45. The roller 462 has a reciprocating groove 463, and the moving part 465 is slidably fitted on the reciprocating groove 463, which enables the roller 462 to drive the moving part 465 to reciprocate when rotating. One end of the moving part 465 is connected to the placement box 466.

[0035] In this embodiment, the movable component 465 includes a locking block 11, a limiting rod 12, and a push rod 13. One end of the locking block 11 is embedded in the reciprocating groove 463. The locking block 11 and the limiting rod 12 are slidably engaged. The limiting rod 12 is fixed on the mounting bracket 461 to limit the movement of the locking block 11 so that the locking block 11 can only reciprocate on the limiting rod 12. A push rod 13 is fixed on one side of the locking block 11. The other end of the push rod 13 is connected to the placement box 466, which can drive the placement box 466 to extend and retract together when the locking block 11 reciprocates.

[0036] In this embodiment, the positioning device 2 includes a drive gear 21, a gear disc 22, a clamping block 23, a limiting disc 24, and a spiral strip 25. The drive gear 21 is mounted on the machine body 1 and its bottom is connected to a motor at the bottom of the machine body 1, which can drive the drive gear 21 to rotate. The gear disc 22 is meshed on one side of the drive gear 21, and the spiral strip 25 is fixed on one side of the gear disc 22. The clamping block 23 is slidably fitted on the spiral strip 25. There are three sets of clamping blocks 23 in a circular array. All three sets of clamping blocks 23 are located on the limiting disc 24 and are slidably fitted with the limiting disc 24. The limiting disc 24 is mounted on the gear disc 22.

[0037] In this embodiment, the rotation of the drive gear 21 drives the gear disk 22 to rotate. As the gear disk 22 rotates, it drives the several clamping blocks 23 that cooperate with the spiral strip 25 to perform clamping or expanding movements synchronously, thereby clamping the elevator buffer. By adjusting the clamping diameter, elevator buffers of different sizes can be fixedly positioned, which is convenient for testing different elevator buffers.

[0038] Working principle: When it is necessary to test the elevator buffer, the elevator buffer is placed on the positioning device 2 at the bottom of the machine body 1. The drive gear 21 drives the gear plate 22 to rotate. The rotation of the gear plate 22 will drive the several clamping blocks 23 that cooperate with the spiral strip 25 to perform clamping movements synchronously, clamping and positioning the elevator buffer. Then, the reduction motor 31 drives the chain 32 to rotate. The rotation of the chain 32 will drive the main shaft 33 at the other end to rotate. Through the meshing between the bevel gears 34 and the driven gears 35 installed at both ends of the main shaft 33, the two sets of lifting devices 4 located on both sides of the machine body 1 will be driven to rotate synchronously.

[0039] Driven by the driven gear 35, the ball screw 41 connected to it rotates. Under the guidance of the guide member, the rotational motion is converted into linear motion, thereby driving the guide seat 42 and the L-shaped plate 45 located on the guide seat 42 to move up and down to adjust the height of the weight block 5, thus simulating the impact force of the elevator falling at different heights. Then, the motor 464 drives the roller 462 to rotate. When the roller 462 rotates, it drives the moving part 465 and the placement box 466 connected to the moving part 465 to move back and forth. When the placement box 466 is in the ejected state, the weight block 5 is placed on the placement boxes 466 on both sides. When the placement box 466 retracts under the action of the roller 462, the weight block 5 located on the placement box 466 loses support and falls onto the elevator buffer, thus performing a compression test on the elevator buffer.

[0040] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator buffer compression test device, the structure of which includes a body (1), a positioning device (2) fixedly installed at the bottom of the body (1), a drive mechanism (3) provided at the top of the body (1), a lifting device (4) for cooperating with both ends of the drive mechanism (3), and a weight block (5) located on the lifting device (4); Its features are: The lifting device (4) includes a ball screw (41), a guide seat (42) for sliding cooperation with the ball screw (41), guide rails (43) on both sides of the ball screw (41), a slider (44) for sliding cooperation with the two guide rails (43), an L-shaped plate (45) located on one side of the slider (44) and the guide seat (42), and a reciprocating mechanism (46) mounted on the L-shaped plate (45). The reciprocating mechanism (46) includes a mounting frame (461), a roller (462) rotatably engaged on the mounting frame (461), a motor (464) at one end of the roller (462), a reciprocating groove (463) on the roller (462), a moving part (465) for sliding engagement with the reciprocating groove (463), and a placement box (466) at one end of the moving part (465). The movable component (465) includes a locking block (11), a limiting rod (12), and a push rod (13). One end of the locking block (11) is embedded in the reciprocating groove (463). The locking block (11) and the limiting rod (12) are slidably engaged. The limiting rod (12) is fixed on the mounting frame (461). The push rod (13) is fixed on one side of the locking block (11). The other end of the push rod (13) is connected to the placement box (466).

2. The elevator buffer compression test device according to claim 1, characterized in that: The drive mechanism (3) includes a geared motor assembly (31), a chain (32) located at the output end of the geared motor assembly (31), a main shaft (33) located at the other end of the chain (32), bevel gears (34) installed at both ends of the main shaft (33), and driven gears (35) for meshing with the two bevel gears (34).

3. The elevator buffer compression test device according to claim 1, characterized in that: The ball screw (41) and guide rail (43) are both mounted on the machine body (1).

4. The elevator buffer compression test device according to claim 1, characterized in that: The positioning device (2) includes a drive gear (21), a gear disc (22) meshing with one side of the drive gear (21), a spiral strip (25) mounted on one side of the gear disc (22), and a clamping block (23) for sliding engagement with the spiral strip (25). The clamping blocks (23) are arranged in a circular array of three groups. All three groups of clamping blocks (23) are located on a limiting plate (24) and slide in engagement with the limiting plate (24). The limiting plate (24) is mounted on the gear disc (22).

5. The elevator buffer compression test device according to claim 1, characterized in that: The top end of the ball screw (41) is connected to the driven gear (35), and the ball screw (41) can be driven to rotate synchronously by the rotation of the driven gear (35).

6. The elevator buffer compression test device according to claim 1, characterized in that: The mounting bracket (461) is fixed on the L-shaped plate (45).

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