Performance test system for elevator traction machine

Abstract

The invention discloses an elevator traction machine performance test system which comprises a traction wheel connected with a traction machine and a steel wire rope arranged on the traction wheel, a vertical support is arranged on one side of the traction wheel, a lifting mechanism is arranged on the vertical support, a guide wheel is installed at the end of the lifting mechanism, and the steel wire rope is arranged on the guide wheel. A horizontal support is arranged on one side of the vertical support, a horizontal telescopic mechanism is arranged on the horizontal support, a tensioning wheel is arranged at the end of the horizontal telescopic mechanism, the steel wire rope is arranged on the traction wheel and the guide wheel in a sleeving mode, and the angle of the steel wire rope is changed through the ascending guide wheel and the translating tensioning wheel. Therefore, the wrap angle of the steel wire rope on the traction sheave of the traction machine to be tested is changed, and data of safety and braking performance of the traction machine to be tested under the condition of various wrap angles of the steel wire rope are obtained.

Description

Technical Field:

[0001] The present invention relates to the field of elevator traction machine performance testing systems. Background Art:

[0002] With the development of modern cities, buildings are constantly getting taller, and higher requirements are put forward for the drive system of elevators installed in buildings - the traction machine. The traction machine plays a controlling role in the starting acceleration, steady-speed operation, and braking deceleration of the elevator, directly affecting the safety and riding comfort of the elevator. In order to ensure the safety and reliability of the traction machine product during use, it is a very important link to conduct performance parameter tests on it before leaving the factory.

[0003] When the traction machine works, it needs to output torque load and bear load torque and radial load. The actual operating conditions are complex. The traditional testing of traction machine products is to install the traction machine to be tested on a fixed test platform for testing, which results in the inability to adjust the wrap angle of the traction machine, causing insufficient acquisition of data on safety and braking performance. Summary of the Invention:

[0004] The purpose of the present invention is to provide an elevator traction machine performance testing system, an elevator traction machine testing system that can simulate the actual working conditions of the traction machine, and can change the size of the wrap angle to obtain data on safety and braking performance.

[0005] The purpose of the present invention is achieved through the following technical solutions.

[0006] The purpose of the present invention is to provide an elevator traction machine performance testing system, including a traction wheel connected to the traction machine and a steel wire rope arranged on the traction wheel. A vertical bracket is arranged on one side of the traction wheel, a lifting mechanism is arranged on the vertical bracket, a guide wheel is installed at the end of the lifting mechanism, a horizontal bracket is arranged at one side position of the vertical bracket, a horizontal telescopic mechanism is arranged on the horizontal bracket, a tensioning wheel is arranged at the end of the horizontal telescopic mechanism, and the steel wire rope is sleeved on the traction wheel and the guide wheel.

[0007] The above-mentioned horizontal telescopic mechanism is a hydraulic push rod.

[0008] A first sliding part is fixed on the above-mentioned hydraulic push rod, and a first track bar is arranged in the horizontal bracket, and the first sliding part is installed on the first track bar for movement.

[0009] The tail end of the above-mentioned hydraulic push rod is hinged to the horizontal bracket.

[0010] The above-mentioned lifting mechanism includes a screw rod, a motor, a chain, a moving frame and a screw rod sleeve. A second track bar and a second sliding part are arranged between the moving frame and the vertical support. The guide wheel is fixed on the moving frame. The screw rod is installed at the bottom of the moving frame. A screw rod sleeve is arranged on the screw rod. A first sprocket and a second sprocket are arranged on the screw rod sleeve and the motor. The chain is sleeved on the first sprocket and the second sprocket.

[0011] A speed measuring device is arranged on the above-mentioned moving frame. The speed measuring device is connected to the guide wheel and is used to detect the rotation speed of the guide wheel.

[0012] The above-mentioned second track bar is arranged on the vertical support. The second sliding part is fixed on the moving frame. The second sliding part is sleeved on the second track bar and moves up and down.

[0013] A speed measuring motor pulley for testing the moving speed of the wire rope is arranged on one side of the above-mentioned traction wheel. The speed measuring motor pulley is installed on the position adjusting support.

[0014] The above also includes a support platform for placing the traction machine. The height of the support platform is higher than that of the lifting mechanism and the horizontal telescopic mechanism.

[0015] Compared with the prior art, the present invention has the following effects:

[0016] 1) The present invention describes an elevator traction machine performance testing system, which includes a traction wheel connected to the traction machine and a wire rope arranged on the traction wheel. A vertical support is arranged on one side of the traction wheel. A lifting mechanism is arranged on the vertical support. A guide wheel is installed at the end of the lifting mechanism. A horizontal support is arranged on one side of the vertical support. A horizontal telescopic mechanism is arranged on the horizontal support. A tensioning wheel is arranged at the end of the horizontal telescopic mechanism. The wire rope is sleeved on the traction wheel and the guide wheel. By the rising guide wheel and the translating tensioning wheel, the angle of the wire rope is changed, so as to change the size of the wrap angle of the wire rope on the traction wheel of the tested traction machine, and obtain the safety and braking performance data of the tested traction machine under various wire rope wrap angle sizes.

[0017] 2) Other advantages of the present invention are described in detail in the embodiment part of the specification. Description of the drawings:

[0018] Figure 1 is a three-dimensional view of the elevator traction machine performance testing system provided by the embodiment of the present invention;

[0019] Figure 2 is a three-dimensional view of the elevator traction machine performance testing system provided by the embodiment of the present invention;

[0020] Figure 3It is a perspective view of the elevator traction machine performance test system provided by the embodiments of the present invention;

[0021] Figure 4 It is a perspective view of the elevator traction machine performance test system provided by the embodiments of the present invention;

[0022] Figure 5 It is a perspective view of the horizontal bracket provided by the embodiments of the present invention;

[0023] Figure 6 It is a perspective view of the horizontal bracket provided by the embodiments of the present invention;

[0024] Figure 7 It is a perspective view of the vertical bracket provided by the embodiments of the present invention;

[0025] Figure 8 It is a perspective view of the vertical bracket provided by the embodiments of the present invention. Specific embodiments:

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will describe the present application in detail with reference to the drawings and in combination with the embodiments.

[0027] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order different from those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0029] Such as Figures 1 to 8As shown in the figure, this embodiment provides an elevator traction machine performance testing system, which includes a traction wheel 11 connected to the traction machine 1 and a steel wire rope 12 arranged on the traction wheel 11. The traction wheel 11 is installed on the traction machine 1. A vertical bracket 2 is arranged on one side of the traction wheel 11. An elevating mechanism 21 is arranged on the vertical bracket 2. A guide wheel 22 is installed at the end of the elevating mechanism 21. During the rising process of the guide wheel 22, the wrap angle between the steel wire ropes 12 will be reduced. The wrap angle is the angle formed at both ends of the steel wire rope 12 when the steel wire rope 12 is sleeved on the traction wheel 11. The larger the wrap angle, the more contact area there is between the steel wire rope 12 and the traction wheel 11, so as to test the required data to determine the performance of the traction machine. A horizontal bracket 3 is arranged at one side position of the vertical bracket 2. A horizontal telescopic mechanism 31 is arranged on the horizontal bracket 3. A tensioning wheel 32 is arranged at the end of the horizontal telescopic mechanism 31. When the tensioning wheel 32 moves towards the steel wire rope 12, the wrap angle can be increased, and the contact area between the steel wire rope 12 and the traction wheel 11 is increased, so as to obtain the required data. The size of the wrap angle is used to test different data to determine the performance of the traction machine 1, and it is also a testing system for upward overspeed and the car unintended movement protection device. The steel wire rope 12 is sleeved on the traction wheel 11 and the guide wheel 22. By changing the angle of the steel wire rope through the rising guide wheel and the translating tensioning wheel, the size of the wrap angle of the steel wire rope on the traction wheel of the tested traction machine can be changed, so as to obtain the safety and braking performance data of the tested traction machine under various steel wire rope wrap angle sizes.

[0030] As an optional embodiment, the horizontal telescopic mechanism 31 is a hydraulic push rod, which has sufficient powerful thrust and a long service life.

[0031] As an optional embodiment, a first sliding part 33 is fixed on the hydraulic push rod. A first track bar 34 is arranged inside the horizontal bracket 3. The first sliding part 33 is installed on the first track bar 34 to move, and the tensioning wheel 32 is pushed forward more smoothly through the first track bar 34.

[0032] As an optional embodiment, the tail end of the hydraulic push rod is hinged to the horizontal bracket 3.

[0033] As an alternative embodiment, the lifting mechanism 21 includes a screw 211, a motor 212, a chain 213, a moving frame 214, and a screw sleeve 215. A second track bar 216 and a second sliding part 217 are provided between the moving frame 214 and the vertical bracket 2. The guide wheel 22 is fixed to the moving frame 214. The screw 211 is installed at the bottom of the moving frame 214. A screw sleeve 215 is provided on the screw 211. A first sprocket and a second sprocket are provided on the screw sleeve 215 and the motor 212. The chain 213 is sleeved on the first sprocket and the second sprocket. The motor 212 rotates the first sprocket, and drives the second sprocket through the chain 213 to rotate the screw 211, so as to push the moving frame 214 to move up and down.

[0034] As an alternative embodiment, a speed measuring device 218 is provided on the moving frame 214. The speed measuring device 218 is connected to the guide wheel 22. The speed measuring device 218 is used to detect the rotation speed of the guide wheel 22. There are 2 speed measuring devices 218, respectively located on both sides of the guide wheel 22, so that the rotation speed of the guide wheel 22 can be tested during the rotation process.

[0035] As an alternative embodiment, the second track bar 216 is provided on the vertical bracket 2. The second sliding part 217 is fixed to the moving frame 214. The second sliding part 217 is sleeved on the second track bar 216 to move up and down, which can be more stable and will not shake.

[0036] As an alternative embodiment, a speed measuring motor pulley 13 is provided on one side of the traction wheel 11 for testing the moving speed of the wire rope 12. The speed measuring motor pulley 13 is installed on a position adjusting bracket 14, and the position adjusting bracket 14 can be used for position adjustment.

[0037] As an alternative embodiment, it further includes a support platform 4 for placing the traction machine 1. The height of the support platform 4 is higher than that of the lifting mechanism 21 and the horizontal telescopic mechanism 31.

[0038] In the prior art, the wrap angle of the traction machine cannot be adjusted, resulting in insufficient acquisition of data on safety and braking performance. Only the elevator overspeed upward and the car unexpected movement protection device under a specific wrap angle can be tested. Therefore, by using the lifting mechanism 21 provided on the vertical bracket 2, a guide wheel 22 is installed at the end of the lifting mechanism 21. In addition, a horizontal telescopic mechanism 31 is provided on the horizontal bracket 3, and a tensioning wheel 32 is provided at the end of the horizontal telescopic mechanism 31 to change the size of the wrap angle, so as to test the data on the safety and braking performance of the traction machine under various wrap angle conditions.

[0039] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. An elevator traction machine performance test system includes a traction wheel (11) connected to a traction machine (1) and a steel wire rope (12) disposed on the traction wheel (11). A vertical bracket (2) is provided on one side of the traction wheel (11), and a lifting mechanism (21) is provided on the vertical bracket (2). A guide wheel (22) is installed at the end of the lifting mechanism (21), and it is characterized in that: A horizontal bracket (3) is arranged at one side position of the vertical bracket (2). A horizontal telescopic mechanism (31) is arranged on the horizontal bracket (3). A tension pulley (32) is arranged at the end of the horizontal telescopic mechanism (31). The wire rope (12) is sleeved on the traction sheave (11) and the guide pulley (22).

2. The performance testing system for an elevator traction machine according to claim 1, wherein: The horizontal telescopic mechanism (31) is a hydraulic push rod.

3. The performance testing system for an elevator traction machine according to claim 2, wherein: A first sliding part (33) is fixed on the hydraulic push rod. A first track bar (34) is arranged inside the horizontal bracket (3). The first sliding part (33) is installed on the first track bar (34) to move.

4. The performance testing system for an elevator traction machine according to claim 2, wherein: The tail end of the hydraulic push rod is hinged to the horizontal bracket (3).

5. The performance test system for an elevator traction machine according to claim 1, wherein: The lifting mechanism (21) includes a screw rod (211), a motor (212), a chain (213), a moving frame (214) and a screw rod sleeve (215). A second track bar (216) and a second sliding part (217) are arranged between the moving frame (214) and the vertical bracket (2). The guide pulley (22) is fixed on the moving frame (214). The screw rod (211) is installed at the bottom position of the moving frame (214). A screw rod sleeve (215) is arranged on the screw rod (211). A first sprocket and a second sprocket are arranged on the screw rod sleeve (215) and the motor (212). The chain (213) is sleeved on the first sprocket and the second sprocket.

6. The performance testing system for an elevator traction machine according to claim 5, wherein: A speed measuring device (218) is arranged on the moving frame (214). The speed measuring device (218) is connected to the guide pulley (22). The speed measuring device (218) is used to detect the rotation speed of the guide pulley (22).

7. A performance testing system for an elevator traction machine according to claim 5, characterized in that: The second track bar (216) is arranged on the vertical bracket (2). The second sliding part (217) is fixed on the moving frame (214). The second sliding part (217) is sleeved on the second track bar (216) to move up and down.

8. A performance testing system for an elevator traction machine according to claim 1, characterized in that: A speed measuring motor pulley (13) is arranged at one side position of the traction sheave (11) to test the moving speed of the wire rope (12). The speed measuring motor pulley (13) is installed on the position adjusting bracket (14).

9. The performance testing system for an elevator traction machine according to claim 1, characterized in that: It further includes a support table (4) for placing the traction machine (1). The height of the support table (4) is higher than that of the lifting mechanism (21) and the horizontal telescopic mechanism (31).

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