Rope loosening and breaking detection device for steel wire rope and steel belt and elevator using rope loosening and breaking detection device
By designing a detection device including rope head combination and elastic reset device, the problem that the prior art cannot detect all wire ropes and steel belts is solved, and the safety inspection of multiple elevators is realized, ensuring the safety and application of elevator operations are ensured. sex.
Patent Information
- Application Number
- CN202420665637.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The existing broken rope loose rope detection device cannot detect all wire ropes and steel belts, and its application range is relatively limited.
A detection device including mounting base plate, rope head combination, fixing bracket, adjustment bracket and return spring is designed. By connecting the rotating bracket and switch plate, the elastic return spring triggers the stroke switch to achieve loosening and breaking of the wire rope or steel belt. Real-time detection and adjust the height of the movable plate according to the type of elevator, suitable for a variety of elevators.
It realizes timely detection of loosening and breaking of wire ropes or steel belts, ensures safe operation of elevators, is simple in structure and convenient to install, and is suitable for selection of multiple elevators, expanding the application scope of inspection devices.
Smart Images
Figure CN222273814U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator manufacturing, in particular to a wire rope and a steel belt loose and broken rope detection device and an elevator using the same. Background Art
[0002] The elevator rope assembly is also called the "traction rope termination device". It is a component that connects the end of the traction rope to the car, counterweight or machine room load-bearing beam. The traction rope is usually connected to the rope end rod, and the rope end rod is limited by a nut after passing through the rope end plate, and a spring is set on the part of the rope end rod that passes through the rope end plate. When the traction rope pulls the rope end rod, the spring can play a buffering role. With the frequent use of the elevator, the traction rope is prone to breakage or loosening. The current broken rope and loose rope detection device on the market is to add a proximity switch on the rope end plate. This type of device can often only be fixed at the end of some wire ropes and cannot detect the conditions of all wire ropes, which is quite limited.
[0003] In view of this, there is an urgent need to develop a broken rope and loose rope detection device suitable for a variety of elevators, which has a stable structure, is easy to install and has a low cost. Utility Model Content
[0004] The technical problem to be solved by the present application is that the application scope of the broken rope and loose rope detection devices currently on the market is relatively limited and cannot detect the conditions of all steel wire ropes and steel belts.
[0005] In order to solve the above-mentioned technical problems, the present application provides, on the one hand, a loose and broken rope detection device for steel wire ropes and steel belts, comprising: a mounting base plate, a rope head assembly is provided in the middle, a vertical fixed bracket is provided on one side of the rope head assembly on the mounting base plate, and a vertical adjusting bracket is provided on the other opposite side; the fixed bracket and the adjusting bracket are fixedly connected with a rotating bracket at the top, and the rotating bracket abuts against the rope head assembly; the rope head assembly includes a plurality of rope head assemblies, and the rope head assembly includes a rope head rod, a reset spring and an abutting flat pad, the top of the rope head rod is provided with a flat pad which moves up and down with the rope head rod, and the bottom corresponds to a through hole provided on the mounting base plate, and the bottom of the rope head rod passes through the through hole to connect the steel wire or steel belt assembly A return spring is sleeved on the rope head rod, one end of which abuts against a flat pad and the other end abuts against a mounting base plate; the adjusting bracket comprises a fixed plate at a lower portion and a movable plate at an upper portion, the top of the movable plate is fixedly connected to one end of a rotating bracket, the end of the rotating bracket is fixedly connected to a switch plate, and the top of the movable plate is also fixedly connected to a travel switch with a contact facing the switch plate; the movable plate is movably connected to the fixed plate and the height of the movable plate can be adjusted relative to the fixed plate; wherein, when the detection device is in the original state, the rotating bracket abuts against the flat pad, and when the return spring bounces up and stretches, the flat pad supports the rotating bracket and rotates upward, thereby driving the switch plate to trigger the travel switch; the travel switch is connected to a power supply.
[0006] According to an embodiment of the present application, a pair of vertical waist-shaped holes are provided at the connection between the movable plate and the fixed plate, and the movable plate is adjusted in height by bolts and nuts passing through the waist-shaped holes and cooperating with the fixed plate.
[0007] According to an embodiment of the present application, the return spring is a compression spring.
[0008] According to an embodiment of the present application, both the fixed bracket and the adjustable bracket are channel steel structures.
[0009] According to an embodiment of the present application, the length of the rotating bracket is 350 mm.
[0010] According to an embodiment of the present application, five groups of rope head assemblies are arranged in a front-to-back staggered and connected manner along the length direction of the rotating bracket, and the flat pads of the five groups of rope head assemblies are all in contact with the rotating bracket.
[0011] According to an embodiment of the present application, a positioning nut cooperating with the rope head rod is provided on the upper part of the flat washer.
[0012] According to an embodiment of the present application, both the fixed bracket and the adjustable bracket are fixed to the mounting base plate by screws.
[0013] According to an embodiment of the present application, both ends of the rotating bracket are fixed to the fixed bracket and the adjusting bracket respectively by bolts and nuts.
[0014] Another aspect of the present application discloses an elevator, including a loose and broken rope detection device for a steel wire rope and a steel belt according to the above-mentioned method, and also including a car, a drive mechanism and an elevator controller, wherein the elevator controller is communicatively connected with the drive mechanism and the travel switch.
[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0016] 1. The elastic return spring device at the end of the rope head of the present application will bounce up and hold up the rotating bracket. The rotating bracket will rotate upward, and the switch plate will trigger the travel switch, thereby cutting off the safety circuit of the elevator and stopping the elevator to ensure safety. Problems such as loose rope or broken rope of the wire rope or steel belt during the operation of the elevator can be discovered in time, and the elevator can be stopped before the staff takes corresponding measures, making it safer for passengers to take the elevator. The structure is simple, which is conducive to promotion and is suitable for selection and adoption of various elevators.
[0017] 2. The relative position of the movable plate and the fixed plate in the present application can be adjusted and connected, and the waist-shaped hole and the bolt nut are matched. The position of the bolt can be locked according to the position of the reset spring, that is, the movable plate can be fixed at a certain height, and then cooperate with the switch on the buffer elastic device to achieve the safe stop of the elevator. This design allows the loose rope and broken rope detection device to be adjusted according to the corresponding elevator type, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.
[0019] Figure 1 The following is a schematic diagram of a structure of a wire rope and a steel belt loose and broken wire rope detection device according to the utility model;
[0020] Figure 2 for Figure 1 Right view of;
[0021] Figure 3 It is a schematic diagram of the working state of a loose and broken rope detection device for a steel wire rope and a steel belt in an example of the utility model;
[0022] Figure 4 It is the original state of the switch of a loose and broken rope detection device for a steel wire rope and a steel belt in an example of the utility model;
[0023] Figure 5 It is the switch action state of a wire rope and a steel belt loose and broken rope detection device in the example of the utility model.
[0024] The following are the descriptions of the reference numerals:
[0025] 10. Installing base plate, 11. Fixed bracket, 12. Adjusting bracket, 13. Rotating bracket, 20. Rope head assembly, 21. Rope head rod, 22. Reset spring, 23. Flat washer, 121. Travel switch, 122. Movable plate, 123. Fixed plate, 131. Switch plate, 1221. Waist-shaped hole. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.
[0027] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the patent application specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the existence of at least one.
[0028] according to Figures 1 to 5 As shown, a wire rope and steel belt loose and broken rope detection device of the utility model example includes a horizontal mounting base plate 10 and a rope head assembly 20, a fixed bracket 11, a rotating bracket 13 and an adjusting bracket 12 arranged on the mounting base plate 10. When one of the several wire ropes or steel belts in the elevator is subjected to less force than the other wire ropes or steel belts due to operation, installation or quality problems, it becomes loose; or when one of the wire ropes or steel belts is subjected to greater force and breaks, the elastic buffer device at the end of the rope head will pop up, triggering the electrical switch of the device, breaking the safety circuit, and stopping the elevator to ensure safety. Compared with the prior art of adding a proximity switch to the rope head plate, the rotating bracket 13 linkage switch matched with the elastic buffer device used in this application is suitable for all types of elevators (passenger elevators, freight elevators, villa elevators, steel belt elevators, etc.), with a simple structure, stable and reliable, easy installation, and low cost.
[0029] In this embodiment, a rope end assembly 20 is provided in the middle of the mounting base plate 10, and a vertical fixed bracket 11 is provided on one side of the rope end assembly 20 on the mounting base plate 10, and a vertical adjustment bracket 12 is provided on the other opposite side; the fixed bracket 11 and the adjustment bracket 12 are fixedly connected with a rotating bracket 13 at the top, and the rotating bracket 13 abuts against the rope end assembly 20.
[0030] Specifically, the rope end combination 20 includes multiple rope end components, and the rope end components include a rope end rod 21, a return spring 22 and a contact flat washer 23. The top of the rope end rod 21 is provided with a flat washer 23 that moves up and down with it, and the bottom corresponds to a through hole provided on the mounting base 10. The bottom of the rope end rod 21 is connected to the steel wire or steel belt component through the through hole. The rope end rod 21 is sleeved with a return spring 22, one end of which abuts the flat washer 23 and the other end abuts the mounting base 10.
[0031] Furthermore, if Figure 1 As shown, in this embodiment, the rope end assembly 20 is composed of 5 groups of rope end assemblies, which are arranged along the length direction of the rotating bracket 13, forming 5 groups of rope end assemblies that are staggered and connected to each other. When the rope loosening and breaking detection device is in the original state, the flat pads 23 of the 5 groups of rope end assemblies are all in contact with the rotating bracket 13. When the detection device is specifically used, the number of rope end assemblies can be determined according to the number of steel belts and steel wire ropes used in the elevator.
[0032] Furthermore, the length of the rotating bracket 13 is preferably 350 mm, which can cover 90% of elevators. When the length exceeds this limit, only the length of the rotating bracket 13 needs to be lengthened, and the remaining components are shared, so that the loose and broken rope detection device can be stocked in batches.
[0033] Specifically, the adjusting bracket 12 includes a lower fixed plate 123 and an upper movable plate 122, the top of the movable plate 122 is fixedly connected to one end of the rotating bracket 13, the end of the rotating bracket 13 is fixedly connected with a switch plate 131, and the top of the movable plate 122 is also fixedly connected with a travel switch 121 with its contacts facing the switch plate 131; the movable plate 122 is movably connected to the fixed plate 123 and the movable plate 122 moves up and down along the fixed plate 123, wherein the rotating bracket 13 of the detection device is in an original state, and the flat pad 23 is in contact with the flat pad 23, and when the reset spring 22 bounces up and stretches, the flat pad 23 presses the rotating bracket 13 to rotate upward, thereby driving the switch plate 131 to trigger the travel switch 121, and the travel switch 121 is connected to the power supply.
[0034] Furthermore, the movable plate 122 is provided with a pair of vertical waist-shaped holes 1221 at the connection with the fixed plate 123. The movable plate 122 passes through the waist-shaped holes 1221 through bolts and nuts and cooperates with the fixed plate 123 to adjust the height of the movable plate 122. The height is adjusted according to the original height of the reset spring 22, so that the rotating bracket 13 abuts against the flat pad 23 of the rope head rod 21. The fixed plate 123 is provided with threaded holes, which are convenient for bolts to be fixed on the fixed plate 123. The nuts on the bolts are tightened so that the movable plate 122 is fixed at a certain height position of the fixed plate 123. When the switch plate 131 is actuated, it can realize the functions of triggering and disconnecting with the fixed travel switch 121.
[0035] Furthermore, the movable plate 122 and the fixed plate 123 are used in combination, and the waist-shaped hole 1221 is used in combination with the threaded hole to achieve the adjustable height of the rope head spring between 70mm and 150mm, covering 90% of the rope head end height, and can be applied to a variety of ladder types.
[0036] Furthermore, the return spring 22 is a compression spring, and the height of the return spring 22 can be selected in the range of 70 mm to 150 mm.
[0037] Furthermore, the fixed bracket 11 and the adjustable bracket 12 are both channel steel structures, which are easy to manufacture and process, and after the side holes are opened, external parts such as the switch plate 131 and the travel switch 121 are easy to install.
[0038] Furthermore, a positioning nut cooperating with the rope head rod 21 is provided on the upper portion of the flat washer 23 .
[0039] Furthermore, the fixing bracket 11 and the adjusting bracket 12 are both fixed to the mounting base plate 10 by screws.
[0040] Furthermore, both ends of the rotating bracket 13 are fixed to the fixed bracket 11 and the adjustable bracket 12 by bolts and nuts. By providing the rotating bracket 13, it is only necessary to rotatably install the rotating bracket 13 between the fixed bracket 11 and the adjustable bracket 12 to realize the installation of the movable part on the installation base, so that there is no need to separately install the driving part and the contact part, simplifying the overall structure and installation steps.
[0041] On the other hand, the present application discloses an elevator, including a loose and broken rope detection device for a steel wire rope and a steel belt as described above, and also including a car, a driving mechanism and an elevator controller, wherein the elevator controller is in communication with the driving mechanism and the travel switch 121. The elevator controller receives a trigger signal from the travel switch 121, and controls the driving mechanism to stop running, thereby stopping the elevator car; the elevator car can continue to run only after the fault is repaired and eliminated. The elevator can timely eliminate the risk of broken ropes by setting up the loose and broken rope detection device, thereby improving the efficiency of elevator maintenance and the safety of elevator use.
[0042] In this embodiment, the working principle is: first adjust the height of the movable plate 122 according to the height of the return spring 22, and when the elevator is installed, Figure 3 As shown, due to the weight of the elevator itself, the wire rope assembly and the rope end assembly are pulled downward, causing the rope end rod 21 to carry the flat washer 23 to compress the reset spring 22. When the elevator wire rope is loose or broken, the force on the reset spring 22 is reduced, and the rope end rod 21 and the flat washer 23 are triggered to move upward together under the rebound force of the reset spring 22. The flat washer 23 pushes the rotating bracket 13, and the rotating bracket 13 drives the movable plate 122 to move upward, so that the switch plate 131 at the movable end of the rotating bracket 13 triggers the travel switch 121, thereby cutting off the safety circuit of the elevator and stopping the elevator to ensure safety.
[0043] In summary, the technical solution of this application has the following beneficial effects:
[0044] 1. The elastic return spring device at the end of the rope head of the present application will bounce up and hold up the rotating bracket. The rotating bracket will rotate upward, and the switch plate will trigger the travel switch, thereby cutting off the safety circuit of the elevator and stopping the elevator to ensure safety. Problems such as loose rope or broken rope of the wire rope or steel belt during the operation of the elevator can be discovered in time, and the elevator can be stopped before the staff takes corresponding measures, making it safer for passengers to take the elevator. The structure is simple, which is conducive to promotion and is suitable for selection and adoption of various elevators.
[0045] 2. The relative position of the movable plate and the fixed plate in the present application can be adjusted and connected, and the waist-shaped hole and the bolt nut are matched. The position of the bolt can be locked according to the position of the reset spring, that is, the movable plate can be fixed at a certain height, and then cooperate with the switch on the buffer elastic device to achieve the safe stop of the elevator. This design allows the loose rope and broken rope detection device to be adjusted according to the corresponding elevator type, and has a wide range of applications.
[0046] The above are merely exemplary embodiments of the present application and are not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.
Claims
1. A wire rope and steel belt loose and broken rope detection device, characterized in that: include: A mounting base plate is provided with a rope head assembly in the middle, a vertical fixing bracket is provided on one side of the rope head assembly on the mounting base plate, and a vertical adjustment bracket is provided on the other side opposite thereto; a rotating bracket is fixedly connected to the fixing bracket and the adjustment bracket at the top, and the rotating bracket abuts against the rope head assembly; The rope head assembly includes a plurality of rope head components, and the rope head components include a rope head rod, a reset spring and an abutting flat washer. The top of the rope head rod is provided with a flat washer that moves up and down with it, and the bottom corresponds to a through hole provided on the mounting base plate. The bottom of the rope head rod passes through the through hole to connect the steel wire or steel belt component. The rope head rod is sleeved with a reset spring with one end abutting the flat washer and the other end abutting the mounting base plate. The adjustment bracket comprises a lower fixed plate and an upper movable plate, the top of the movable plate is fixedly connected to one end of the rotating bracket, the end of the rotating bracket is fixedly connected to a switch plate, and the top of the movable plate is also fixedly connected to a travel switch with a contact facing the switch plate; the movable plate is movably connected to the fixed plate and the movable plate can adjust its height relative to the fixed plate; Wherein, when the detection device is in the original state, the rotating bracket abuts against the flat pad, and when the reset spring bounces up and stretches, the flat pad pushes against the rotating bracket and rotates upward, thereby driving the switch plate to trigger the travel switch; Wherein, the travel switch is connected to a power source.
2. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: The movable plate is provided with a pair of vertical waist-shaped holes at the connection place with the fixed plate, and the movable plate is adjusted in height by bolts and nuts passing through the waist-shaped holes and cooperating with the fixed plate.
3. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: The return spring is a compression spring.
4. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: The fixed bracket and the adjustable bracket are both channel steel structures.
5. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: The length of the rotating bracket is 350 mm.
6. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: Five groups of rope head assemblies are arranged in a front-to-back staggered and connected manner along the length direction of the rotating bracket, and the flat pads of the five groups of rope head assemblies are all in contact with the rotating bracket.
7. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: A positioning nut matched with the rope head rod is provided on the upper part of the flat washer.
8. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: The fixing bracket and the adjusting bracket are both fixed to the mounting base plate by screws.
9. A wire rope and steel belt loose and broken rope detection device according to claim 1, characterized in that: Both ends of the rotating bracket are fixed to the fixing bracket and the adjusting bracket respectively through bolts and nuts.
10. An elevator, characterized in that: It comprises a wire rope and steel belt loose rope and broken rope detection device according to any one of claims 1-9, and also comprises a car, a drive mechanism and an elevator controller, and the elevator controller is communicatively connected with the drive mechanism and the travel switch.