Steel wire rope broken wire detection device and installation method thereof

Abstract

The invention discloses a steel wire rope broken wire detection device which comprises a frame, a sensor assembly and a transverse moving assembly. The sensor assembly comprises a contact pulley, a sensor body, a detection element assembly, a guide rail assembly, a connecting rod and a rolling pulley; the guide rail assembly comprises a guide rail and a guide block; the frame is fixed near the traction machine, the guide rail is fixedly connected with the frame, and the placing direction of the guide rail is perpendicular to the axis of a traction wheel of the traction machine; the guide block is in sliding connection with the guide rail, the guide block is fixedly connected with the sensor body, and the contact pulley is fixedly connected with the sensor body; the detection element assembly comprises a detection element, a sliding groove and a sliding block. The sliding groove is fixed in the sensor body, the sliding block can slide in the axis direction of the traction wheel along the sliding groove, the detection element is fixedly connected with the sliding block, and the rolling pulley is fixedly connected with the sliding block through the connecting rod. The transverse displacement assembly comprises an inclined guide rail, two sets of composite sliding blocks and two sets of transverse guide rails.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to a wire rope broken wire detection device and an installation method thereof. Background Art

[0002] In the prior art, the structure of the traction elevator system is as follows: Figure 1 As shown in the figure, the traction elevator system includes a car 1 and a corresponding counterweight 2. The car 1 and the counterweight 2 are connected by a wire rope 4. The traction wheel 6 of the traction machine 3 drives the wire rope 4 to move, completing the ascent and descent of the car 1. The function of the guide wheel 7 is to adjust the distance between the car 1 and the counterweight 2. When the wire breakage detection device 5 detects the wire breakage of the wire rope 4, it needs to be placed as follows: Figure 1 The multiple steel wire ropes to be tested near the traction machine 3 are shown.

[0003] Due to space limitations, the positions of the wire ropes at the car top and the traction sheave are as follows: Figure 2 As shown in the deviation, when the elevator goes from the bottom floor to the top floor, the wire rope at the wire break detection device will gradually tend to the arrangement position of the wire rope at the top of the car, that is, the wire rope will move horizontally and vertically; this phenomenon will cause the sensor inside the wire break detection device to be unable to align with the wire rope and other problems, such as Figure 3 shown.

[0004] In order to avoid the above problems, when the broken wire detection device detects the broken wire of the wire rope, the prior art generally adopts the following solutions: the elevator is opened to the second top floor to prevent the wire rope from contacting the detection device, or the broken wire detection device is fixed near the wire rope to be tested, and a pulley is installed under the broken wire detection device to press the wire rope to keep the wire rope in its original position. The above two methods can only prevent the wire rope from wearing the broken wire detection device, and cannot realize that the sensor inside the broken wire detection device is aligned with the wire rope during operation. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a wire rope detection technical solution which can automatically adjust the position of its internal detection element as the position of the detected wire rope changes.

[0006] In order to solve the above technical problems, the present invention provides a wire rope broken wire detection device, comprising a frame, a sensor assembly and a lateral movement assembly;

[0007] The sensor assembly includes a contact pulley, a sensor body, a detection element assembly, a guide rail assembly, a connecting rod and a rolling pulley; the guide rail assembly includes a guide rail and a guide block;

[0008] The frame is fixed near the traction machine, the guide rail is fixedly connected to the frame, and the placement direction of the guide rail is perpendicular to the traction wheel axis of the traction machine; the guide block is slidably connected to the guide rail, the guide block is fixedly connected to the sensor body, and the contact pulley is fixedly connected to the sensor body;

[0009] The detection element assembly comprises a detection element, a slide groove and a slider; the slide groove is fixed inside the sensor body, the slider can slide along the slide groove in the direction of the traction wheel axis, the detection element is fixedly connected to the slider, and the rolling pulley is fixedly connected to the slider through a connecting rod;

[0010] The lateral displacement assembly includes an inclined guide rail, two groups of composite sliders and two groups of lateral guide rails; the two groups of lateral guide rails are fixedly connected to the frame, and their directions are parallel to the axis of the traction wheel; the composite slider includes a moving slider and a steering slider, the moving sliders are respectively slidably connected to the lateral guide rails, the moving sliders are rotatably connected to the steering sliders, and the steering sliders are slidably connected to the inclined guide rails.

[0011] Preferably, the slide groove further includes a limiting element for limiting the movement range of the slider in the slide groove.

[0012] Preferably, the sensor assembly further comprises an elastic member, and the elastic member presses the contact pulley against the surface of the wire rope.

[0013] The present invention also provides a method for installing a wire rope broken wire detection device, wherein the wire rope broken wire detection device is the wire rope broken wire detection device according to any one of claims 1 to 3; the installation method comprises the following steps:

[0014] Step S1, before the elevator system starts to operate, the slider is adjusted so that the detection element is aligned with the wire rope, and the position of the moving slider of a group of composite sliders on the transverse guide rail is adjusted, and the orientation of the inclined guide rail is changed until it contacts the rolling pulley fixedly connected to the slider, and the sliding of the moving slider and the steering slider in the group of composite sliders is locked;

[0015] Step S2, after the elevator system ends, adjust the slider again to align the detection element with the wire rope, and move the moving slider of another group of composite sliders until the inclined guide rail contacts the rolling pulley again, and lock the composite slider to fix the position of the inclined guide rail on the frame.

[0016] Compared with the prior art, the wire rope broken wire detection device of the present invention can automatically adjust the position of its internal detection element as the position of the detected wire rope changes, so that the detection element is automatically aligned with the wire rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0018] Figure 1 It is a structural diagram of a traction elevator system in the prior art;

[0019] Figure 2 It is the arrangement method of the wire rope at the traction wheel and the car top in the prior art;

[0020] Figure 3 It is a schematic diagram of the arrangement position of the steel wire ropes at the steel wire rope broken wire detection device of the prior art when the elevator is located at the top floor and the bottom floor;

[0021] Figure 4 This is a schematic structural diagram of a wire rope broken wire detection device according to Example 1;

[0022] Figure 5 This is a schematic diagram of the structure of the sensor assembly of Example 1;

[0023] Figure 6 This is a schematic diagram of the structure of the lateral moving component of Example 1;

[0024] Figure 7 and Figure 8 This is a schematic diagram of the working state of the wire rope broken wire detection device of Example 1. DETAILED DESCRIPTION

[0025] The following describes the implementation methods of the present invention through specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific implementation methods, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the overall design concept of the invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other in the absence of conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0026] Example 1

[0027] like Figure 4 As shown, this embodiment provides a wire rope broken wire detection device 5, including a frame 51, a sensor assembly 52 and a plurality of groups of lateral movement assemblies 53;

[0028] like Figure 5As shown, the frame 51 is preferably fixed near the traction machine, such as on the traction machine base or the load-bearing beam. The sensor assembly 52 includes a contact pulley 521, a sensor body 522, multiple detection element assemblies 523, a guide rail assembly 524, a connecting rod 525 and a rolling pulley 526. The guide rail assembly 524 includes a guide rail 5241 and a guide block 5242. The guide rail 5241 is fixedly connected to the frame 51, and the placement direction of the guide rail 5241 is perpendicular to the traction wheel axis. The guide block 5242 is slidably connected to the guide rail 5241, and the guide block 5242 is fixedly connected to the sensor body 522. The contact pulley 521 is fixedly connected to the sensor body 522, and the group of detection element assemblies 523 includes a detection element 5231, a slide groove 5232, and a slider 5233. The slide groove 5232 is fixed inside the sensor body 522, and the slider 5233 can slide along the slide groove 5232 in the direction of the traction wheel axis. The detection element 5231 is fixedly connected to the slider 5233, and the rolling pulley 526 is fixedly connected to the slider 5233 through a connecting rod 525.

[0029] The slide groove 5232 also includes a limiting element, which can limit the movement range of the slider 5233 in the slide groove 5232. The sensor assembly 52 also has an elastic member, which allows the contact pulley 521 to be pressed against the surface of the wire rope 4.

[0030] like Figure 6 The group of transverse displacement components 53 includes an inclined guide rail 531, two groups of composite sliders 532 and two groups of transverse guide rails 533. The two groups of transverse guide rails 533 are fixedly connected to the frame 51 and are parallel to the axis of the traction wheel 6. The group of composite sliders 532 includes a moving slider 5321 and a steering slider 5322. The moving slider 5321 is respectively slidably connected to the transverse guide rail 533. The moving slider 5321 is rotatably connected to the steering slider 5322. The steering slider 5322 is slidably connected to the inclined guide rail 531. When the moving slider 5321 slides on the guide rail 531, the inclined guide rail 531 can change its position on the frame 51 through the steering slider 5322.

[0031] This embodiment also provides a method for installing a wire rope broken wire detection device, comprising the following steps:

[0032] Step S1, before the elevator system starts operating, adjust the slider 5233 so that the detection element 5231 is aligned with the wire rope, and move the position of the movable slider 5321 of the composite slider 532 on the transverse guide rail 533, change the orientation of the inclined guide rail 531 until it contacts the rolling pulley 526 fixedly connected to the slider 5233, and lock the sliding of the movable slider 5321 and the steering slider 5322 in a group of composite sliders 532.

[0033] Step S2, after the elevator system ends its operation, the slider 5233 is adjusted again to align the detection element 5231 with the wire rope, and the moving slider 5321 of another set of composite sliders 532 is moved until the inclined guide rail 531 contacts the rolling pulley 526 again. The composite slider 532 is locked to fix the position of the inclined guide rail 531 on the frame 51.

[0034] Figure 7 , Figure 8 The schematic diagram of the movement of the wire rope broken wire detection device 5 is as follows. After the inclined guide rail is adjusted in position by the lateral displacement assembly, when the position of the wire rope 4 changes, it will push the contact pulley 521 to make the sensor assembly 52 move along the radial direction of the traction wheel. The detection element 5231 inside the sensor assembly 52 moves along the axial direction of the traction wheel with the wire rope 4 through the inclined guide rail 531 and the slide groove 5232, ensuring that the detection element can be aligned with the wire rope 4.

[0035] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A wire rope broken wire detection device, characterized in that: including a frame, a sensor assembly, and a lateral movement assembly; The sensor assembly includes a contact pulley, a sensor body, a detection element assembly, a guide rail assembly, a connecting rod and a rolling pulley; the guide rail assembly includes a guide rail and a guide block; The frame is fixed near the traction machine, the guide rail is fixedly connected to the frame, and the placement direction of the guide rail is perpendicular to the traction wheel axis of the traction machine; the guide block is slidably connected to the guide rail, the guide block is fixedly connected to the sensor body, and the contact pulley is fixedly connected to the sensor body; The detection element assembly comprises a detection element, a slide groove and a slider; the slide groove is fixed inside the sensor body, the slider can slide along the slide groove in the direction of the traction wheel axis, the detection element is fixedly connected to the slider, and the rolling pulley is fixedly connected to the slider through a connecting rod; The lateral displacement assembly includes an inclined guide rail, two groups of composite sliders and two groups of lateral guide rails; the two groups of lateral guide rails are fixedly connected to the frame, and their directions are parallel to the axis of the traction wheel; the composite slider includes a moving slider and a steering slider, the moving sliders are respectively slidably connected to the lateral guide rails, the moving sliders are rotatably connected to the steering sliders, and the steering sliders are slidably connected to the inclined guide rails.

2. The wire rope broken wire detection device according to claim 1, characterized in that: The slide groove further comprises a limiting element for limiting the moving range of the slider in the slide groove.

3. The wire rope broken wire detection device according to claim 1, characterized in that: The sensor assembly also has an elastic member, which presses the contact pulley against the surface of the wire rope.

4. A method for installing a wire rope broken wire detection device, characterized in that: The wire rope broken wire detection device is the wire rope broken wire detection device according to any one of claims 1 to 3; the installation method comprises the following steps: Step S1, before the elevator system starts to operate, the slider is adjusted so that the detection element is aligned with the wire rope, and the position of the moving slider of a group of composite sliders on the transverse guide rail is adjusted, and the orientation of the inclined guide rail is changed until it contacts the rolling pulley fixedly connected to the slider, and the sliding of the moving slider and the steering slider in the group of composite sliders is locked; Step S2, after the elevator system ends, adjust the slider again to align the detection element with the wire rope, and move the moving slider of another group of composite sliders until the inclined guide rail contacts the rolling pulley again, and lock the composite slider to fix the position of the inclined guide rail on the frame.

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