Device for rapidly detecting traction force of steel wire rope traction driving elevator

Abstract

The utility model relates to the technical field of elevator traction force detection, in particular to a steel wire rope traction driving elevator traction force rapid detection device which comprises pressing assemblies, a pushing assembly, a displacement detection assembly and a supporting table, a support is fixed on the supporting table, and the pressing assemblies are fixed on the supporting table in a matrix mode. The downward pressing assembly comprises a pipeline and a first sleeve, the pipeline is connected with the bottom of the first sleeve, a flowing medium is stored in the first sleeve, and a plurality of pushing assemblies are transversely installed on the side face of the outer portion of the supporting table. According to the elevator traction force detection device, the pressure sensor is matched for detection, when the spring is not compressed any more or the pressure of the pressure sensor tends to be stable, and a traction wheel and a steel wire rope on an elevator slip, the force borne by the pressure sensor and the spring is the maximum traction force of the elevator, the detection speed is high, errors are small, and the detection accuracy is high. And device installation is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator traction force detection, in particular to a fast detection device for the traction force of a steel wire rope traction driven elevator. Background Art

[0002] With the acceleration of urbanization, the number of high-rise buildings is increasing. As an important vertical transportation tool, the safety and reliability of elevators are attracting more and more attention. As the core power of elevator operation, the stability of traction is directly related to the safe operation of the elevator. However, the traditional elevator traction force detection method often has problems such as complex operation, time-consuming and labor-intensive, and susceptible to human factors, which cannot meet the needs of modern elevator safety management. In the existing elevator traction force detection technology, the commonly used methods include static testing and dynamic testing. Static testing mainly applies a certain external force, such as adding weights to the car, thereby increasing the weight of the elevator car, and observing the response of the elevator traction system to determine whether the traction force meets the requirements. However, this method cannot simulate the force conditions during the actual operation of the elevator, and the testing process is cumbersome. Dynamic testing simulates the actual operation of the elevator and measures the various parameters of the traction system to determine whether the traction force meets the requirements. However, this method requires professional testing equipment and personnel, and is easily disturbed by external factors during the test, and the results are not accurate enough.

[0003] Weights are placed in the elevator car to increase the weight of the car, and then the maximum traction force when the traction wheel and the wire rope slip is measured. These weights are manually carried into the elevator car and then manually taken out of the elevator car after the test is completed. Due to the large number of elevators, the labor intensity of maintenance and testing personnel is high, and personal injuries are easily caused by fatigue or accidents during the handling of weights, and the detection error is large and the detection rate is not high, so a fast detection device is needed. Utility Model Content

[0004] The utility model aims to provide a fast detection device for the traction force of a steel wire rope traction driven elevator. The detection device is placed on the top of the elevator car. After the elevator car rises and contacts the ceiling of the building, the fluid medium in the first sleeve is pressed into the second sleeve, and the push head compresses the spring. After the spring is compressed, the compressed distance of the spring is detected. In conjunction with the pressure sensor detection, when the spring is no longer compressed or the pressure of the pressure sensor tends to be stable, when the traction wheel and the steel wire rope on the elevator slip, the force received by the pressure sensor and the spring is the maximum traction force of the elevator. The detection speed is fast, the error is small, and the device is easy to install.

[0005] In order to solve the problems of the prior art, the utility model provides a fast detection device for the traction force of a steel wire rope traction driven elevator, comprising a pressing component, a pushing component, a displacement detection component and a support platform, wherein the support platform is fixed with a bracket, the pressing component is fixed on the support platform in a matrix manner, the pressing component comprises a pipe and a first sleeve, the pipe is interconnected with the bottom of the first sleeve, a flowing medium is stored in the first sleeve, and a plurality of pushing components are transversely installed on the side of the outside of the support platform; the pushing component comprises a second sleeve and a pushing head, one end of the pipe is interconnected with the second sleeve, a pressure sensor for detecting pressure is fixed on the support platform, a spring is connected to the pressure sensor, and one end of the spring is interconnected with one end of the pushing head. Preferably, the top of the transport plate is provided with two limiting guide plates arranged opposite to each other.

[0006] Preferably, the pressing assembly includes a first piston, the first piston is slidably disposed inside the first sleeve, the top of the first piston is connected to a first moving rod, and the top of the first moving rod is connected to a support member.

[0007] Preferably, the pushing assembly also includes a second piston, which is slidably disposed inside the second sleeve, and a second moving rod is connected to the outside of the second piston, and one end of the second moving rod is interconnected with the pushing head, and the second moving rod slides back and forth in the second sleeve.

[0008] Preferably, the second sleeve is filled with a medium that can flow in the second sleeve.

[0009] Preferably, a displacement detection component for detecting the degree of spring compression is fixed at a position near the pressure sensor at the bottom of the support platform.

[0010] Preferably, a fixing clamp for fixing the displacement detection assembly is installed between the displacement detection assembly and the bottom of the support platform, and multiple displacement detection assemblies and fixing clamps are arranged at the bottom of the support platform, and the displacement detection assemblies and fixing clamps are symmetrically installed to the bottom of the support platform.

[0011] Preferably, the displacement detection component includes a displacement sensor and a connecting sleeve, one end of the displacement sensor is inserted into the connecting sleeve, and one end of the connecting sleeve is connected to a connecting rod, and the connecting rod and the second moving rod are fixedly connected to each other.

[0012] Preferably, a fastening bolt for fixing one end of the displacement sensor is installed on the connecting sleeve, and one end of the fastening bolt is in contact with the surface of the displacement sensor.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the wire rope traction drive elevator traction force rapid detection device has a reasonable structure and has the following advantages:

[0014] By placing the device on the top of the elevator car, the elevator then goes up, and then the ceiling of the building contacts the support member, the support member moves downward, at this time the support member moves the first moving rod, the first moving rod moves the first piston, and then the flowing medium inside the first sleeve enters the second sleeve, the flowing medium can be hydraulic oil, the flowing medium causes the second sleeve to drive the second moving rod to move, the pushing head will compress the spring, and then the pressure sensor will detect the pressure, and the displacement sensor will detect the displacement of the pushing head, and then the degree of compression of the spring can be obtained, according to the force applied to the spring = elastic coefficient * compressed distance, the force applied to the spring can be obtained, when the traction wheel and the wire rope on the elevator slip, at this time the force of the spring is compared with the force detected by the pressure sensor, the average value is obtained, and the detection error is eliminated. The force at this time is the maximum traction force of the elevator. This device has a simple structure, is easy to operate, and has fast detection and relatively accurate detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a first stereoscopic structural schematic diagram of a device for quickly detecting the traction force of a steel wire rope traction driven elevator.

[0016] Figure 2 The present invention is a right side structural schematic diagram of a traction force rapid detection device for a wire rope traction driven elevator.

[0017] Figure 3 The present invention is a schematic diagram of the cross-sectional structure at AA of a traction force rapid detection device for a wire rope traction driven elevator.

[0018] Figure 4 The present invention is a second stereoscopic structural schematic diagram of a device for quickly detecting the traction force of a steel wire rope traction driven elevator.

[0019] Figure 5 The present invention is a schematic diagram of the top view of the structure of a device for quickly detecting the traction force of a wire rope traction driven elevator.

[0020] Figure 6 The present invention is a schematic diagram of the BB cross-section structure of a traction force rapid detection device for a wire rope traction driven elevator.

[0021] The numbers in the figure are: 1. bracket; 2. pressing assembly; 201. support member; 202. first moving rod; 203. first piston; 204. pipeline; 205. first sleeve; 3. pushing assembly; 301. second sleeve; 302. second piston; 303. second moving rod; 304. pushing head; 4. spring; 5. pressure sensor; 6. displacement detection assembly; 601. displacement sensor; 602. connecting sleeve; 603. connecting rod; 604. fastening bolt; 7. fixing clamp; 8. support platform. DETAILED DESCRIPTION

[0022] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1 — Figure 6 As shown, the utility model provides: a fast detection device for traction force of a steel wire rope traction driven elevator, comprising a pressing component 2, a pushing component 3, a displacement detection component 6 and a support platform 8, wherein the support platform 8 is fixed with a bracket 1, the pressing component 2 is fixed on the support platform 8 in a matrix manner, the pressing component 2 comprises a pipe 204 and a first sleeve 205, the pipe 204 is interconnected with the bottom of the first sleeve 205, a flowing medium is stored in the first sleeve 205, and a plurality of pushing components 3 are transversely installed on the side surface outside the support platform 8; the pushing component 3 comprises a second sleeve 301 and a pushing head 304, one end of the pipe 204 is interconnected with the second sleeve 301, a pressure sensor 5 for detecting pressure is fixed on the support platform 8, a spring 4 is connected to the pressure sensor 5, and one end of the spring 4 is interconnected with one end of the pushing head 304.

[0024] The pressing assembly 2 includes a first piston 203 , which is slidably disposed inside the first sleeve 205 , the top of the first piston 203 is connected to the first moving rod 202 , and the top of the first moving rod 202 is connected to the support member 201 .

[0025] In this embodiment, the first moving rod 202 moves downward, so that the first moving rod 202 moves the piston 203 , and the first piston 203 allows the internal flowing medium to enter the second sleeve 301 .

[0026] The pushing assembly 3 also includes a second piston 302, which is slidably arranged inside the second sleeve 301, and a second moving rod 303 is connected to the outside of the second piston 302, and one end of the second moving rod 303 is interconnected with the pushing head 304, and the second moving rod 303 slides back and forth in the second sleeve 301.

[0027] In this embodiment, the second piston 302 moves under the action of the flowing medium, and the second piston 302 moves the second moving rod 303 , thereby causing the push head 304 to compress the spring 4 .

[0028] The second sleeve 301 is filled with a medium that can flow in the second sleeve 301 .

[0029] A displacement detection assembly 6 for detecting the compression degree of the spring 4 is fixed at a position near the pressure sensor 5 at the bottom of the support platform 8 .

[0030] A fixing clamp 7 for fixing the displacement detection assembly 6 is installed between the displacement detection assembly 6 and the bottom of the support platform 8. Multiple displacement detection assemblies 6 and fixing clamps 7 are arranged at the bottom of the support platform 8, and the displacement detection assemblies 6 and fixing clamps 7 are symmetrically installed to the bottom of the support platform 8.

[0031] The displacement detection assembly 6 includes a displacement sensor 601 and a connecting sleeve 602 . One end of the displacement sensor 601 is inserted into the connecting sleeve 602 . One end of the connecting sleeve 602 is connected to a connecting rod 603 . The connecting rod 603 and the second moving rod 303 are fixedly connected to each other.

[0032] A fastening bolt 604 for fixing one end of the displacement sensor 601 is installed on the connecting sleeve 602 , and one end of the fastening bolt 604 is in contact with the surface of the displacement sensor 601 .

[0033] In this embodiment, the displacement sensor 601 detects the displacement of the second moving rod 303, and further detects the degree of compression of the spring 4. The force applied to the spring 4 is obtained according to the formula: force applied to the spring = elastic coefficient * compressed distance.

[0034] Working principle: When in use, the staff moves the elevator to the top floor and puts the device on the top of the elevator car. After the elevator goes up, the ceiling of the building will press down after contacting the support 201. At this time, the support 201 moves the first moving rod 202, and the first moving rod 202 moves the first piston 203, so that the flowing medium inside the first sleeve 205 enters the second sleeve 301. The flowing medium can be hydraulic oil. The flowing medium causes the second sleeve 301 to drive the second moving rod 303 to move. The push head 304 will compress the spring 4, and then the pressure sensor 5 will detect the pressure, and the displacement sensor 601 will detect the displacement of the push head 304, and then the degree of compression of the spring 4 will be obtained. According to the force applied to the spring = elastic coefficient * compressed distance, the force applied to the spring 4 is obtained. When the traction wheel and the wire rope on the elevator slip, the force of the spring 4 is compared with the force detected by the pressure sensor 5 at this time, and the average value is obtained to eliminate the detection error. The force at this time is the maximum traction force of the elevator.

[0035] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A fast detection device for traction force of a steel wire rope traction driven elevator, characterized in that: The invention comprises a pressing component (2), a pushing component (3), a displacement detection component (6) and a support platform (8), wherein the support platform (8) is fixed with a bracket (1), the pressing component (2) is fixed on the support platform (8) in a matrix manner, the pressing component (2) comprises a pipeline (204) and a first sleeve (205), the pipeline (204) and the bottom of the first sleeve (205) are connected to each other, a flowing medium is stored in the first sleeve (205), and a plurality of pushing components (3) are transversely installed on the side surface outside the support platform (8); The pushing assembly (3) comprises a second sleeve (301) and a pushing head (304); one end of the pipe (204) is interconnected with the second sleeve (301); a pressure sensor (5) for detecting pressure is fixed on the support platform (8); a spring (4) is connected to the pressure sensor (5); one end of the spring (4) is interconnected with one end of the pushing head (304).

2. A fast detection device for traction force of a steel wire rope traction driven elevator according to claim 1, characterized in that: The pressing assembly (2) comprises a first piston (203), the first piston (203) is slidably arranged inside a first sleeve (205), the top of the first piston (203) is connected to a first moving rod (202), and the top of the first moving rod (202) is connected to a support member (201).

3. A fast detection device for traction force of a steel wire rope traction driven elevator according to claim 1, characterized in that: The pushing assembly (3) also includes a second piston (302), which is slidably arranged inside the second sleeve (301), and the second piston (302) is externally connected to a second moving rod (303), and one end of the second moving rod (303) is interconnected with the pushing head (304), and the second moving rod (303) slides back and forth in the second sleeve (301).

4. A fast detection device for traction force of a steel wire rope traction driven elevator according to claim 3, characterized in that: The second sleeve (301) is filled with a medium that can flow in the second sleeve (301).

5. The device for quickly detecting the traction force of a steel wire rope traction driven elevator according to claim 1, characterized in that: A displacement detection component (6) for detecting the degree of compression of the spring (4) is fixed at a position near the pressure sensor (5) at the bottom of the support platform (8).

6. A fast detection device for traction force of a steel wire rope traction driven elevator according to claim 5, characterized in that: A fixing clamp (7) for fixing the displacement detection assembly (6) is installed between the displacement detection assembly (6) and the bottom of the support platform (8); a plurality of the displacement detection assembly (6) and the fixing clamp (7) are arranged at the bottom of the support platform (8), and the displacement detection assembly (6) and the fixing clamp (7) are symmetrically installed at the bottom of the support platform (8).

7. A fast detection device for traction force of a steel wire rope traction driven elevator according to claim 6, characterized in that: The displacement detection component (6) comprises a displacement sensor (601) and a connecting sleeve (602) inside, one end of the displacement sensor (601) is inserted into the connecting sleeve (602), and one end of the connecting sleeve (602) is connected to a connecting rod (603), and the connecting rod (603) and the second moving rod (303) are fixedly connected to each other.

8. A fast detection device for traction force of a steel wire rope traction driven elevator according to claim 7, characterized in that: A fastening bolt (604) for fixing one end of the displacement sensor (601) is installed on the connecting sleeve (602), and one end of the fastening bolt (604) is in contact with the surface of the displacement sensor (601).

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