Speed limiter testing device

Abstract

The present invention relates to a speed governor testing device, comprising: a horizontal base frame; a movable base having a speed governor mounting position; a first guide wheel installed on the movable base, the first guide wheel corresponding to the speed governor mounting position in a one-to-one manner; a second guide wheel; the second guide wheel corresponding to the speed governor mounting position in a one-to-one manner; a counterweight corresponding to the speed governor mounting position in a one-to-one manner; a steel wire rope corresponding to the speed governor mounting position in a one-to-one manner; the steel wire rope extending along the length direction of the horizontal base frame, one end of the steel wire rope being fixedly mounted on the horizontal base frame by a rope end clamp, and the other end being sequentially wound around the speed governor rope wheel, the first guide wheel, and the second guide wheel installed on the corresponding speed governor mounting position to be connected to the counterweight; the speed governor mounting position being located between the corresponding first guide wheel and the second guide wheel; and a driving mechanism for driving the movable base to move along the length direction of the horizontal base frame, so as to link the speed governor rope wheel to move along the steel wire rope. The present invention facilitates the simulation of the dynamic function of the speed governor and the life test of the speed governor and the steel wire rope.

Description

Technical Field

[0001] The invention belongs to the technical field of speed governor testing, and in particular relates to a speed governor testing device. Background Art

[0002] The speed limiter is one of the safety control components for elevator safety protection. Its safety and reliability directly affect the functional realization of supporting components.

[0003] During the speed limiter speed test, it is difficult to simulate the actual working conditions of the elevator, so the test relies on the entire elevator for verification, which results in a long cycle and great difficulty in data detection and collection. The commonly used test device at present is a test tower, for example: a speed limiter deceleration test tower disclosed in the patent document with publication number CN111377327A. When conducting a speed limiter overall and wire rope life test, a higher test tower is built in the vertical direction for systematic testing, which has high construction costs and inconvenient supporting data collection and detection. In order to facilitate the simulation of different elevator motion states and reliably accelerate the life test of the speed limiter and wire rope, shorten the test time, and improve the test efficiency, new test devices need to be developed. Summary of the Invention

[0004] Based on the above shortcomings and deficiencies in the prior art, an object of the present invention is to provide a speed limiter testing device.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0006] A speed limiter testing device, comprising:

[0007] Horizontal base frame;

[0008] The movable seat has one or more speed limiter installation positions; a first guide wheel is installed on the movable seat, and the first guide wheel corresponds to the speed limiter installation position one by one;

[0009] The second guide wheel is installed on the horizontal base frame; the second guide wheel corresponds to the speed limiter installation position one by one;

[0010] The counterweight blocks correspond one to one with the speed limiter installation positions;

[0011] A steel wire rope corresponds to each speed governor installation position; the steel wire rope extends along the length direction of the horizontal base frame, one end of the steel wire rope is fixed to the horizontal base frame by a rope end clamp, and the other end is sequentially wound through the speed governor rope pulley, the first guide pulley, and the second guide pulley installed on the corresponding speed governor installation position to be connected to the counterweight; wherein the speed governor installation position is located between the corresponding first guide pulley and the second guide pulley; the counterweight is located below the second guide pulley;

[0012] The driving mechanism is used to drive the movable seat to move along the length direction of the horizontal base frame, so as to link the speed limiter rope wheel to move along the wire rope.

[0013] As a preferred solution, first guide rails extending along the length direction of the horizontal base frame are respectively provided on both sides of the horizontal base frame, and correspondingly, both sides of the movable seat are slidably fitted in the first guide rails.

[0014] As a preferred solution, the driving mechanism includes a motor, a driving wheel, a driven wheel and a transmission rope. The motor is driven and connected to the driving wheel. The driving wheel and the driven wheel are respectively installed at the two ends of the length direction of the horizontal base frame. The transmission rope is wrapped around the driving wheel and the driven wheel, and both ends of the transmission rope are connected to the movable seat.

[0015] As a preferred solution, the driven wheel is slidably engaged with the first guide rail via a wheel seat, and a tensioning mechanism is installed between the wheel seat and the horizontal base frame, and the tensioning mechanism is used to adjust the position of the driven wheel to tension the transmission rope.

[0016] As a preferred solution, the tensioning mechanism includes a pull rod, a tensioning spring, and a tensioning nut. The pull rod extends along the length direction of the horizontal base frame, one end of the pull rod is hinged to the wheel seat, the tensioning spring is sleeved outside the pull rod, and the other end of the pull rod passes through the horizontal base frame until it is threadedly engaged with the tensioning nut; the two ends of the tensioning spring are respectively limited to the horizontal base frame and the tensioning nut.

[0017] As a preferred solution, travel switches are respectively provided at both ends of the horizontal base frame along its length direction, and the travel switches are used to control the movable travel of the movable seat.

[0018] As a preferred solution, a plurality of rollers are sequentially mounted on the horizontal base frame along its length direction, and the rollers are used to support and guide the transmission rope.

[0019] As a preferred solution, the horizontal base frame is provided with a second guide rail corresponding to each counterweight block, and the second guide rail extends along the height direction of the horizontal base frame; a counterweight mounting seat is slidably fitted on the second guide rail, and the counterweight mounting seat is used to install the counterweight block.

[0020] As a preferred solution, a jacking mechanism is provided on the horizontal base frame corresponding to each counterweight block, and the jacking mechanism is used to jack up the counterweight block to install or remove the speed limiter at its corresponding speed limiter installation position.

[0021] As a preferred solution, guide support wheels are respectively provided on both sides of the movable seat, and the guide support wheels are used to support and guide the wire rope.

[0022] As a preferred solution, the speed limiter testing device further includes:

[0023] The third guide wheel is installed on the horizontal base frame; the third guide wheel corresponds to the speed limiter installation position one by one, and the third guide wheel is located above its corresponding second guide wheel; the second guide wheel is at the same height as the first guide wheel to keep the wire rope in a horizontal state.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The speed governor testing device of the present invention realizes speed testing of the speed governor by designing a speed governor testing frame of a horizontal structure; there is no need to build a corresponding test tower, thus avoiding potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 1 is a schematic diagram of a partial structural fracture of a speed governor test device according to embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic structural diagram of the movable seat according to embodiment 1 of the present invention;

[0028] Figure 3 1 is a schematic structural diagram of the right end portion of the speed governor testing device according to embodiment 1 of the present invention;

[0029] Figure 4 1 is a schematic structural diagram of the left end portion of the speed governor testing device according to embodiment 1 of the present invention;

[0030] Figure 5 2. It is a right side view of the speed governor testing device according to embodiment 1 of the present invention;

[0031] Figure 6 1 is a schematic diagram of the installation of the driven wheel of embodiment 1 of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the tensioning mechanism of Example 1 of the present invention. DETAILED DESCRIPTION

[0033] To more clearly illustrate the embodiments of the present invention, specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive efforts.

[0034] Example 1:

[0035] like Figure 1-7 As shown, the speed governor testing device of this embodiment includes a horizontal base frame 1, a movable seat 2, a steel wire rope 3, a first guide wheel 4, a second guide wheel 5, a third guide wheel 6, a counterweight 7, a driving mechanism and a tensioning mechanism.

[0036] The horizontal base frame 1 is a base structure laid flat on a horizontal surface. The length of the horizontal base frame 1 can be designed according to actual application requirements, for example, 40 meters. Specifically, the horizontal base frame 1 includes a base and two vertical supports 1b on the left and 1a on the right, with the wide sides of the base extending in the height direction. The design of the vertical supports facilitates the suspension of the installed wire rope and the installation of other components.

[0037] The movable seat 2 is constructed from several columns, beams, and a top plate, forming a hollow frame structure to facilitate the installation of the drive mechanism. Five speed limiter mounting positions 20 are located above the top plate of the movable seat. These five speed limiter mounting positions 20 are evenly spaced along the width of the horizontal base frame 1. The speed limiter mounting positions 20 are used to install the speed limiter 100 to be tested. Furthermore, five first guide wheels 4 are also installed on the top plate of the movable seat. These five first guide wheels 4 are evenly spaced along the width of the horizontal base frame 1, and each of the first guide wheels 4 corresponds to the speed limiter mounting positions 20. The first guide wheels 4 are located to the left of the speed limiter mounting positions 20 to facilitate winding of the wire rope 3. The two long sides of the horizontal base frame 1 are each provided with a first guide rail 8 extending along the length of the horizontal base frame. Accordingly, the two side beams at the bottom of the movable seat 2 are slidably engaged with the first guide rail 8, enabling the movable seat 2 to reciprocate along the extension direction of the first guide rail 8.

[0038] The second guide wheels 5 correspond one-to-one to the speed governor mounting positions 20, that is, there are five second guide wheels 5, which are distributed in sequence at equal intervals along the width direction of the horizontal base frame 1; the second guide wheels 5 are coaxially mounted in the middle of the vertical support 1a on the right side of the horizontal base frame, ensuring that the second guide wheels 5 are at the same height as the first guide wheel 4 so that the wire rope is in a horizontal state; in addition, the coaxial installation can achieve synchronous rotation of all second guide wheels.

[0039] The third guide wheel 6 corresponds one-to-one to the speed limiter mounting position 20, that is, there are five third guide wheels 6, which are distributed in sequence at equal intervals along the width direction of the horizontal base frame 1; the third guide wheel 6 is coaxially mounted on the top of the vertical support 1a on the right side of the horizontal base frame, that is, the third guide wheel 6 is located above its corresponding second guide wheel 5, and the third guide wheel 6 is located on the right side of the second guide wheel 5, so that the wire rope led out from the second guide wheel 5 can be reversed through the third guide wheel 6, thereby connecting to the counterweight 7; in addition, the coaxial installation can realize the synchronous rotation of all third guide wheels.

[0040] The counterweight blocks 7 correspond one-to-one to the speed limiter mounting positions 20, that is, there are five groups of counterweight blocks 7, which are distributed at equal intervals along the width direction of the horizontal base frame 1; among them, the right side of the vertical support 1a on the right side of the horizontal base frame corresponds to each counterweight block, respectively, with a second guide rail 9, that is, there are five second guide rails 9, and the second guide rails 9 extend along the height direction of the horizontal base frame; a counterweight mounting seat 10 is slidably fitted on the second guide rail 9, and the counterweight mounting seat 10 is used to install the counterweight block to realize the positioning of the counterweight block 7, and the counterweight block 7 is located at the lower right side of the third guide wheel 6.

[0041] The steel wire ropes 3 correspond one-to-one with the speed governor mounting positions 20, i.e., there are five steel wire ropes 3. The steel wire ropes 3 extend along the length of the horizontal base frame 1, with their left ends fixedly mounted on the vertical support 1b on the left side of the horizontal base frame via a rope end clamp 11. Their right ends are sequentially wound around the sheave of the speed governor 100 mounted on the corresponding speed governor mounting position, the first guide wheel 4, the second guide wheel 5, and the third guide wheel 6 to connect with the counterweight mounting seat 10. The speed governor mounting position 20 is located between the corresponding first guide wheel 4 and the second guide wheel 5, and the first guide wheel 4 is tilted to allow for the steel wire rope to be misaligned from the sheave of the speed governor 100 to the first guide wheel 4.

[0042] The drive mechanism is used to drive the movable seat 2 to move along the length of the horizontal base frame 1, thereby linking the speed governor pulley to move along the wire rope 3. Specifically, the drive mechanism includes a motor 12, a driving pulley 13, a driven pulley 14, and a transmission rope 15. The motor 12 is drivingly connected to the driving pulley 13. The driving pulley 13 and the driven pulley 14 are respectively installed at the left and right ends of the length direction of the horizontal base frame 1. The transmission rope 15 is wound around the driving pulley 13 and the driven pulley 14, and both ends of the transmission rope are connected to the movable seat 2 to drive the movable seat to move.

[0043] The driven wheel 14 is slidably engaged with the first guide rail 8 via a wheel seat 16. A tensioning mechanism is installed between the wheel seat 16 and the vertical support 1a on the right side of the horizontal base frame. The tensioning mechanism is used to adjust the position of the driven wheel to tension the transmission rope. Specifically, the tensioning mechanism includes a pull rod 17, a tensioning spring 18, and a tensioning nut 19. The pull rod 17 extends along the length of the horizontal base frame. The left end of the pull rod 17 is hinged to the wheel seat 16. The tensioning spring 18 is sleeved outside the pull rod 17. The right end of the pull rod 17 passes through the vertical support 1a on the right side of the horizontal base frame and is threadedly engaged with the tensioning nut 19. The left and right ends of the tensioning spring 18 are respectively limited to the right side of the vertical support 1a on the right side of the horizontal base frame and the left side of the tensioning nut 19. The compression of the tensioning spring 18 is adjusted by adjusting the position of the tensioning nut 19 relative to the pull rod, thereby tensioning the transmission rope.

[0044] In addition, due to the long length of the transmission rope, it needs to be supported and guided. That is, a number of rollers 21 are installed on the base of the horizontal base frame 1 along its length. The rollers 21 are used to support and guide the transmission rope to ensure transmission stability. The number of rollers is determined according to the length of the horizontal base frame.

[0045] In this embodiment, a lifting mechanism 22 is mounted on the vertical support 1a on the right side of the horizontal base frame, corresponding to each counterweight 7. The lifting mechanism 22 is used to lift the counterweight to install or remove the speed governor at the corresponding speed governor installation position. The lifting mechanism 22 is a commonly used lifting mechanism such as a cylinder or a jack.

[0046] The left and right sides of the movable seat 2 of this embodiment are respectively installed with guide support wheels 23. The guide support wheels 23 are installed on the movable seat through a rotating shaft. The guide support wheels 23 are used to support and guide the wire rope 3 to ensure that the wire rope is always in contact with the speed limiter rope wheel, thereby improving the accuracy of the speed limiter test.

[0047] In addition, the horizontal base frame of this embodiment is provided with a left travel switch 24 and a right travel switch 25 at both ends along its length, i.e., the left and right ends, respectively, for controlling the travel of the movable seat 2. Specifically, the left travel switch 24 and the right travel switch 25 are laser beam sensors. When the movable seat 2 moves to the position corresponding to the left travel switch 24 or the right travel switch 25, the movable seat 2 blocks the laser beam sensor to generate a trigger signal. The trigger signal is transmitted to the controller, which controls the motor to stop or reverse, thereby achieving travel control of the movable seat.

[0048] Example 2:

[0049] The speed governor testing device of this embodiment differs from that of embodiment 1 in that:

[0050] The number of speed limiter installation positions on the movable seat is not limited to the five described in Example 1, and can also be one, two, three, four, six, eight, ten, etc., to meet the needs of different test scenarios;

[0051] For other structures, please refer to Example 1.

[0052] Example 3:

[0053] The speed governor testing device of this embodiment differs from that of embodiment 1 in that:

[0054] The driving mechanism may also adopt an existing commonly used driving member or driving mechanism, as long as it can realize the rapid driving of the movable seat;

[0055] For other structures, please refer to Example 1.

[0056] Example 4:

[0057] The speed governor testing device of this embodiment differs from that of embodiment 1 in that:

[0058] The second guide wheel can be omitted, that is, the height of the movable seat is adjusted, and the first guide wheel and the third guide wheel are adjusted to the same height, which can also realize the layout of the wire rope and diversify the structure of the speed governor test device;

[0059] For other structures, please refer to Example 1.

[0060] Example 5:

[0061] The speed governor testing device of this embodiment differs from that of embodiment 1 in that:

[0062] The number of counterweight blocks installed on the counterweight mounting seat can be adjusted according to actual application requirements.

[0063] In addition, the travel switch can also adopt a combination of an existing commonly used trigger piece and a trigger sensor;

[0064] For other structures, please refer to Example 1.

[0065] Example 6:

[0066] The speed governor testing device of this embodiment differs from that of embodiment 1 in that:

[0067] The drive mechanism can start at different accelerations, stop at different decelerations and run stably to test the stability of the speed limiter under different working conditions; the speed limiter and steel rope life test can be accelerated at a higher speed.

[0068] For other structures, please refer to Example 1.

[0069] The above description is only a detailed description of the preferred embodiments and principles of the present invention. For ordinary technicians in this field, based on the ideas provided by the present invention, there may be changes in the specific implementation methods, and these changes should also be considered as the scope of protection of the present invention.

Claims

1. A speed limiter testing device, characterized in that: include: Horizontal base frame; A movable seat having one or more speed limiter mounting positions; A first guide wheel is installed on the movable seat, and the first guide wheel corresponds to the speed limiter installation position one by one; The second guide wheel is installed on the horizontal base frame; the second guide wheel corresponds to the speed limiter installation position one by one; The counterweight blocks correspond one to one with the speed limiter installation positions; A steel wire rope corresponds to each speed governor installation position; the steel wire rope extends along the length direction of the horizontal base frame, one end of the steel wire rope is fixed to the horizontal base frame by a rope end clamp, and the other end is sequentially wound through the speed governor rope pulley, the first guide pulley, and the second guide pulley installed on the corresponding speed governor installation position to be connected to the counterweight; wherein the speed governor installation position is between the corresponding first guide pulley and the second guide pulley; the counterweight is located below the second guide pulley; The driving mechanism is used to drive the movable seat to move along the length direction of the horizontal base frame to link the speed limiter pulley to move along the wire rope; the driving mechanism includes a motor, a driving wheel, a driven wheel and a transmission rope, the motor is connected to the driving wheel, the driving wheel and the driven wheel are respectively installed at the two ends of the length direction of the horizontal base frame, the transmission rope is wrapped around the driving wheel and the driven wheel, and both ends of the transmission rope are connected to the movable seat.

2. A speed limiter testing device according to claim 1, characterized in that: Both sides of the horizontal base are respectively provided with first guide rails extending along the length direction of the horizontal base. Correspondingly, both sides of the movable seat are respectively slidably matched with the first guide rails.

3. A speed limiter testing device according to claim 1, characterized in that: The driven wheel is slidably matched with the first guide rail through a wheel seat, and a tensioning mechanism is installed between the wheel seat and the horizontal base frame. The tensioning mechanism is used to adjust the position of the driven wheel to tension the transmission rope.

4. A speed limiter testing device according to claim 3, characterized in that: The tensioning mechanism includes a pull rod, a tensioning spring, and a tensioning nut. The pull rod extends along the length direction of the horizontal base frame. One end of the pull rod is hinged to the wheel seat. The tensioning spring is sleeved outside the pull rod. The other end of the pull rod passes through the horizontal base frame until it is threadedly engaged with the tensioning nut. The two ends of the tensioning spring are respectively limited to the horizontal base frame and the tensioning nut.

5. The speed governor testing device according to claim 1, characterized in that: The horizontal base frame is provided with travel switches at both ends along its length direction, and the travel switches are used to control the movable travel of the movable seat.

6. A speed governor testing device according to any one of claims 1 to 5, characterized in that: The horizontal base frame is provided with a second guide rail corresponding to each counterweight block, and the second guide rail extends along the height direction of the horizontal base frame; a counterweight mounting seat is slidably fitted on the second guide rail, and the counterweight mounting seat is used to install the counterweight block.

7. A speed governor testing device according to claim 6, characterized in that: The horizontal base frame is provided with a jacking mechanism corresponding to each counterweight block, and the jacking mechanism is used to jack the counterweight block to install or remove the speed limiter at its corresponding speed limiter installation position.

8. A speed governor testing device according to any one of claims 1 to 5, characterized in that: Guide support wheels are respectively provided on both sides of the movable seat, and the guide support wheels are used to support and guide the wire rope.

9. A speed governor testing device according to any one of claims 1 to 5, characterized in that: Also includes: The third guide wheel is installed on the horizontal base frame; The third guide wheel corresponds to the speed limiter installation position one by one, and the third guide wheel is located above its corresponding second guide wheel; The second guide wheel is at the same height as the first guide wheel so that the wire rope is in a horizontal state.

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