Rope breakage protection device and system

Abstract

The invention discloses a broken rope protection device which comprises a friction assembly comprising a concave friction wheel and a convex friction wheel, an anti-lock assembly comprising an inner tooth piece, a fixed shaft and a concave key, and a hydraulic assembly comprising a hydraulic arm and a mounting seat, the invention further discloses a broken rope protection system which comprises the broken rope protection device and further comprises a response module. The broken rope protection device can rapidly stop operation when a diamond rope saw breaks a rope, waste scattering or pollution to an operation area is avoided, meanwhile, the service life is long, frequent replacement is not needed, and therefore the safety of workers and safe disposal of waste are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection for engineering machinery and equipment, and particularly to a rope-breaking protection device and system. Background Art

[0002] As a clean energy source, nuclear energy occupies an important position in the global energy structure. However, during the operation of nuclear power plants and related nuclear energy facilities, a large amount of solid radioactive waste will be generated. If not properly handled, it will cause great harm to the environment and human health. Cutting is a commonly used step in the treatment of solid radioactive waste, and tools such as diamond wire saws will be used. When in use, if a fault such as a broken wire occurs in the diamond wire saw, it may cause the waste generated during the cutting process to spread further, and even pose a greater safety hazard.

[0003] Therefore, regarding the equipment protection in the treatment of nuclear solid waste, especially the equipment protection problem in a high-radioactivity environment, there is an urgent need for a safety protection device that can respond to equipment failures efficiently and in a timely manner. Such a protection device needs to be able to quickly stop the operation when the diamond wire saw breaks, avoid the scattering of waste or the contamination of the operation area. At the same time, the rope-breaking protection device is not easily worn by the diamond wire saw when the wire breaks, and does not need to be frequently replaced. While improving the protection effect, it has a long service life, so as to ensure the safety of the staff and the safe disposal of the waste.

[0004] The rope-breaking protection device and system proposed by the present invention are designed to solve the above problems. By integrating friction protection, anti-lock mechanism and hydraulic control system, the present invention can quickly respond and stop the equipment operation when the diamond wire saw breaks, and at the same time can adjust the friction force, increasing the service life of the device and system, thus avoiding possible equipment failures and secondary pollution during the nuclear waste treatment process. Summary of the Invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is that when the diamond wire saw breaks during use, the rope-breaking protection device is easily worn by the diamond wire saw, resulting in a reduction in the protection effect and the service life of the device.

[0007] To solve the above technical problems, the first object of the present invention is to provide a rope-breaking protection device, including a friction assembly, an anti-lock assembly, an adjustment assembly and a hydraulic assembly.

[0008] As a preferred solution of the rope-breaking protection device of the present invention, wherein: the friction assembly includes a concave friction wheel and a convex friction wheel, the concave friction wheel is arranged on one side of the diamond wire saw, and the convex friction wheel is arranged on the other side of the diamond wire saw;

[0009] An anti-lock component is disposed inside the friction component and includes an internal gear member, a fixed shaft, and a concave key. The internal gear member and the friction component are coaxial. The fixed shaft penetrates through the internal gear member. The concave key is disposed between the internal gear member and the fixed shaft. And,

[0010] A hydraulic component is disposed on one side of the anti-lock component and includes a hydraulic arm and a mounting seat. The mounting seat is disposed outside the friction component and the anti-lock component. One end of the hydraulic arm cooperates with the inner wall of the mounting seat, and the other end cooperates with the fixed shaft.

[0011] As a preferred embodiment of the rope-breaking protection device of the present invention, wherein: An adjusting component is disposed inside the anti-lock component and includes a tensioning nail and a screw. The tensioning nail penetrates through the fixed shaft and is coaxial with the fixed shaft. The screw rod of the screw is threadedly connected to the tensioning nail, and one side of the screw nut facing the screw rod is in contact with the fixed shaft.

[0012] As a preferred embodiment of the rope-breaking protection device of the present invention, wherein: Through holes are provided in the middle of both the concave friction wheel and the convex friction wheel, and the outer wall of the internal gear member is fixedly connected to the through holes. The concave friction wheel is wide at both ends and narrow in the middle, and the convex friction wheel is narrow at both ends and wide in the middle. The slope of the concave friction wheel is greater than that of the convex friction wheel.

[0013] As a preferred embodiment of the rope-breaking protection device of the present invention, wherein: The anti-lock component further includes a spring. One end of the spring is fixedly connected to the concave key, and the other end cooperates with the side surface of the tensioning nail.

[0014] As a preferred embodiment of the rope-breaking protection device of the present invention, wherein: The number of the concave keys is relatively prime to the number of teeth of the internal gear member.

[0015] As a preferred embodiment of the rope-breaking protection device of the present invention, wherein: The fixed shaft includes a round tube and a square tube. One end of the round tube is disposed inside the internal gear member, and the square tube is sleeved on one end of the hydraulic arm away from the mounting seat. A concave key hole and a spring hole are provided on the round tube. The concave key cooperates with the concave key hole, and the spring hole is penetrated by the tensioning nail. An observation groove and a prism hole are provided on the square tube. The observation groove is disposed at one end of the square tube close to the screw, and the prism hole cooperates with the tensioning nail.

[0016] As a preferred embodiment of the rope-breaking protection device of the present invention, wherein: The tensioning nail is provided with a frustum and a prism. A spring groove is provided on the frustum, and the spring groove fits with the spring. The prism cooperates with the prism hole, and a screw hole is provided on the prism, and the screw hole cooperates with the screw.

[0017] As a preferred solution of the rope breaking protection device of the present invention, wherein: the concave key includes a pressure receiving surface and a spring hole, the pressure receiving surface is in contact with the internal tooth member, and the bottom of the spring hole is fixedly connected to one end of the spring.

[0018] As a preferred solution of the rope breaking protection device of the present invention, wherein: a limiting end is provided at one end of the hydraulic arm away from the inner wall of the mounting seat, the limiting end cooperates with the square pipe, a rope passing hole is provided on the mounting seat, and both ends of the diamond wire saw penetrate through the rope passing hole.

[0019] The beneficial effect of the rope breaking protection device of the present invention is that when the diamond wire saw breaks, the friction assembly can be brought closer to clamp the diamond wire saw. At the same time, the anti-lock assembly is cooperated to keep the friction wheel and the diamond wire saw sliding out of sync, avoiding the weakening of the friction force and also avoiding a certain part being repeatedly rubbed by the diamond wire saw, resulting in the reduction of the service life and protection effect of the rope breaking protection device.

[0020] Another object of the present invention is to provide a rope breaking protection system.

[0021] As a preferred solution of the rope breaking protection system of the present invention, wherein: a rope breaking protection device is installed in the rope breaking protection system, and it further includes a response module, which is electrically connected to the hydraulic component. The response module includes a monitoring component and a driving component. The monitoring component is used to judge whether the diamond wire saw breaks during operation, and the driving component is used to drive the hydraulic component to extend, so that the friction component is in close contact with the diamond wire saw to stop the diamond wire saw.

[0022] The beneficial effect of the rope breaking protection system of the present invention is that under the monitoring of the monitoring component, once the diamond wire saw breaks, the system will let the driving component drive the hydraulic component to make the friction component in close contact with the diamond wire saw, but will not let a certain surface of the friction component always be in contact with the diamond wire saw, so as to extend the service life of the rope breaking protection device and improve the protection effect when stopping the diamond wire saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 Shows an overall schematic diagram of the rope breaking protection device;

[0025] Figure 2 Shows an internal schematic diagram of the rope breaking protection device;

[0026] Figure 3 Shows the front view of the anti-lock component of the rope breaking protection device;

[0027] Figure 4 Shows the exploded view of the anti-lock component and the adjusting component of the rope breaking protection device;

[0028] Figure 5 Shows the front view of the anti-lock component and the adjusting component of the rope breaking protection device;

[0029] Figure 6 Shows Figure 5 sectional view of;

[0030] Figure 7 Shows the schematic diagram of the rope breaking protection system. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the specific implementation manners and the accompanying drawings.

[0032] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention, but these terms may vary according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0033] Referring to Figure 1 and Figure 2 , this embodiment provides a rope breaking protection device, including a friction component 100, an anti-lock component 200, and a hydraulic component 400.

[0034] The diamond wire saw S is composed of multiple steel wires, on which diamond particles are embedded. When contacting the solid surface and moving, the diamond particles with extremely high hardness of the diamond wire saw S can effectively cut hard objects. When the diamond wire saw S breaks, it is necessary to make the friction component 100 and the diamond wire saw S contact with a certain pressure to quickly stop the diamond wire saw S. At this time, the diamond wire saw S will also wear the friction component 100. To reduce the wear degree of the friction component 100, improve the braking effect of the diamond wire saw S, and extend the service life of the rope breaking protection device, the hydraulic component 400 is used to apply a certain amount of force to the friction component 100, avoiding that when the force is too large, the friction wheel is over-pressed and cannot rotate, resulting in the diamond wire saw S quickly wearing the friction wheel, and at the same time the braking effect will also be reduced, and also avoiding that the force applied by the hydraulic component 400 is too small, the diamond wire saw S will drive the friction wheel to rotate and cannot achieve the braking effect.

[0035] During the operation of the diamond wire saw S, the concave friction wheel 101 and the convex friction wheel 102 of the friction assembly 100 do not contact the diamond wire saw S and keep a certain distance from the diamond wire saw S to ensure that the operation of the diamond wire saw S is not affected. When the diamond wire saw S is broken, the concave friction wheel 101 and the convex friction wheel 102 will clamp the diamond wire saw S, and the diamond wire saw S will drive the concave friction wheel 101 and the convex friction wheel 102 to rotate, and the inner tooth part 201 of the anti-lock assembly 200 will rotate with the friction wheel, and the concave key 203 will intermittently apply resistance to the inner tooth part 201, so that the friction wheel slows down intermittently, thereby preventing the friction wheel and the diamond wire saw S from rotating synchronously, and the sliding friction force will quickly reduce the speed of the diamond wire saw S, preventing the broken diamond wire saw S from harming nearby devices or workers, and also preventing the cut objects from flying, protecting the construction environment.

[0036] Reference Figures 1 to 6 This embodiment provides a rope breaking protection device, including a friction component 100, an anti-lock component 200, an adjustment component 300 and a hydraulic component 400.

[0037] The friction assembly 100 includes a concave friction wheel 101 and a convex friction wheel 102. The concave wheel 101 is approximately composed of two frustums, wherein the top surfaces of the two frustums with smaller areas face each other. The convex friction wheel 102 is also approximately composed of two frustums, wherein the bottom surfaces of the two frustums with larger areas face each other. At the same time, the slope of the frustum of the concave friction wheel 101 is greater than the slope of the frustum of the convex friction wheel 102. In this way, when the two friction wheels clamp the diamond wire saw S, the space between the friction wheels is the largest. In this way, during the process of braking the diamond wire saw S, once the diamond wire saw S is separated from the middle of the friction wheels, it will be subjected to greater pressure from the friction wheels, thereby accelerating the braking speed.

[0038] The inner tooth part 201 of the anti-lock braking component 200 is fixedly connected to the friction wheel and rotates with the friction wheel. The fixed shaft 202 is used to install the concave key 203, and the concave key 203 contacts the inner teeth of the inner tooth part 201. When the friction wheel rotates, the inner teeth of the inner tooth part 201 will repeatedly press the concave key 203 into the fixed shaft 202. Each time the concave key 203 is pressed, the rotation of the friction wheel will be indirectly blocked, so that the friction wheel and the diamond wire saw S reach an intermittent sliding friction state, which almost achieves the effect of point braking.

[0039] The adjusting assembly 300 is used to adjust the pressure between the concave key 203 and the internal gear part 201. The tightening and loosening screw 301 passes through the fixed shaft 202 and is coaxial with the fixed shaft 202. The screw rod of the screw 302 is threadedly connected to the tightening and loosening screw 301, and the side of the nut of the screw 302 facing the screw rod is in contact with the fixed shaft 202. When the screw 302 rotates, it will adjust the depth of the tightening and loosening screw 301 inserted into the fixed shaft 202. One end of the spring 204 is fixedly connected to the concave key 203, and the other end cooperates with the spring groove K1 on the side of the tightening and loosening screw 301. When the tightening and loosening screw 301 moves, the contact surface between the spring groove K1 on the frustum 301a and the spring 204 changes, thereby adjusting the telescopic degree of the spring 204 at the bottom of the concave key 203, and thus adjusting the pressure between the concave key 203 and the internal gear part 201.

[0040] One end of the hydraulic arm 401 of the hydraulic assembly 400 close to the friction assembly 100 has a limiting end 401a, and the limiting end 401a cooperates with the fixed shaft 202 of the anti-lock assembly 200 to prevent the fixed shaft 202 from rotating. The mounting seat 402 is provided with a rope passing hole 402a for both ends of the diamond wire saw S to pass through.

[0041] In some embodiments, the number of concave keys 203 is relatively prime to the number of teeth of the internal gear part 201, which can ensure that the internal gear part 201 presses the concave keys 203 evenly, avoiding multiple concave keys 203 being pressed into the fixed shaft 202 at the same time, resulting in uneven braking.

[0042] In some embodiments, the concave key 203 is provided with a spring hole 203b, which can prevent the spring hole 203b from tipping over during the movement of the frustum 301a, and improve the stability of the spring 204.

[0043] In some embodiments, the concave key 203 is provided with a pressure receiving surface 203a, which is symmetrically arranged, protrudes at the top, and most of the side surfaces are concave. When the teeth of the internal gear part 201 contact the concave surface of the concave key 203 on the concave surface of the pressure receiving surface 203a, only a very small force is required to press down the concave key 203. When the teeth of the internal gear part 201 are closer to the symmetry plane of the concave key 203, the applied pressure needs to be greater. This provides a gradual force feedback for the internal gear part 201, reduces the impact inside the device, and improves the service life of the device without reducing the overall braking effect.

[0044] Referring to Figure 7 , this embodiment provides a wire break protection system, including a wire break protection device, and also including a response module 500, which is electrically connected to the hydraulic assembly 400. The response module 500 includes a monitoring component 501 and a driving component 502. The monitoring component 501 is used to judge whether the diamond wire saw S breaks during operation, and the driving component 502 is used to drive the hydraulic assembly 400 to extend, so that the friction assembly 100 and the diamond wire saw S are closely attached to stop the diamond wire saw S.

[0045] The driving component 502 uses a hydraulic cylinder as the power source, and the monitoring component 501 is equipped with highly sensitive displacement sensors and limit switches to monitor the diamond wire saw S in real time. When the diamond wire saw S is in use, the monitoring component 501 monitors the diamond wire saw S and feeds back the monitored situation to the driving component 502. When the diamond wire saw S breaks, the response module 500 causes the driving component 502 to act, pushes the friction component 100 through the hydraulic component 400, and at the same time triggers the limit switch to send a signal to alert the staff and the system.

[0046] Finally, it should be noted that the devices and systems described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A rope-breaking protection device, characterized in that: including, a friction assembly (100) including a concave friction wheel (101) and a convex friction wheel (102), the concave friction wheel (101) being disposed on one side of the diamond wire saw (S), and the convex friction wheel (102) being disposed on the other side of the diamond wire saw (S); an anti-lock assembly (200) disposed inside the friction assembly (100), including an internal gear member (201), a fixed shaft (202), and a concave key (203), the internal gear member (201) being coaxial with the friction assembly (100); the fixed shaft (202) passing through the internal gear member (201); the concave key (203) being disposed between the internal gear member (201) and the fixed shaft (202); and, a hydraulic assembly (400) disposed on one side of the anti-lock assembly (200), including a hydraulic arm (401) and a mounting seat (402), the mounting seat (402) being disposed outside the friction assembly (100) and the anti-lock assembly (200), one end of the hydraulic arm (401) being fitted with the inner wall of the mounting seat (402), and the other end being fitted with the fixed shaft (202).

2. The rope-breaking protection device according to claim 1, characterized in that: It further includes, an adjustment assembly (300) disposed inside the anti-lock assembly (200), including a tensioning pin (301) and a screw (302), the tensioning pin (301) passing through the fixed shaft (202) and being coaxial with the fixed shaft (202); the screw (302) having a screw rod threadedly connected to the tensioning pin (301), and a nut surface of the screw (302) facing the screw rod being in contact with the fixed shaft (202).

3. The wire break protection device according to claim 1, wherein: through holes are provided in the middle of both the concave friction wheel (101) and the convex friction wheel (102), and the outer wall of the internal gear member (201) is fixedly connected to the through holes; the concave friction wheel (101) is wide at both ends and narrow in the middle, and the convex friction wheel (102) is narrow at both ends and wide in the middle; and the slope of the concave friction wheel (101) is greater than that of the convex friction wheel (102).

4. The wire break protection device according to claim 2, wherein: the anti-lock assembly (200) further includes a spring (204), one end of the spring (204) being fixedly connected to the concave key (203), and the other end being in contact with the side surface of the tensioning pin (301).

5. The wire break protection device according to claim 1, wherein: the number of the concave keys (203) is relatively prime to the number of teeth of the internal gear member (201).

6. The wire break protection device according to claim 4, wherein: The fixed shaft (202) includes a circular tube (202a) and a square tube (202b). One end of the circular tube (202a) is disposed inside the internal gear member (201), and the square tube (202b) is sleeved on one end of the hydraulic arm (401) away from the mounting seat (402). The circular tube (202a) is provided with a concave keyhole (H1) and a spring hole (H2). The concave key (203) cooperates with the concave keyhole (H1), and the spring hole (H2) is penetrated by the tensioning pin (301). The square tube (202b) is provided with an observation groove (H3) and a prism hole (H4). The observation groove (H3) is disposed at one end of the square tube (202b) close to the screw (302), and the prism hole (H4) cooperates with the tensioning pin (301).

7. The rope breaking protection device according to claim 6, characterized in that: The tensioning pin (301) is provided with a frustum (301a) and a prism (301b). The frustum (301a) is provided with a spring groove (K1), and the spring groove (K1) is in contact with the spring (204). The prism (301b) cooperates with the prism hole (H4). The prism (301b) is provided with a screw hole (K2), and the screw hole (K2) cooperates with the screw (302).

8. The rope breaking protection device according to claim 6 or 7, characterized in that: The concave key (203) includes a pressure receiving surface (203a) and a spring hole (203b). The pressure receiving surface (203a) is in contact with the internal gear member (201), and the bottom of the spring hole (203b) is fixedly connected to one end of the spring (204).

9. The rope breaking protection device according to claim 8, characterized in that: One end of the hydraulic arm (401) away from the inner wall of the mounting seat (402) is provided with a limiting end (401a). The limiting end (401a) cooperates with the square tube (202b). The mounting seat (402) is provided with a rope passing hole (402a). Both ends of the diamond wire saw (S) penetrate through the rope passing hole (402a).

10. A rope breaking protection system, characterized in that: The rope breaking protection system is installed with the rope breaking protection device according to any one of claims 1 to 9, and further includes a response module (500), which is electrically connected to the hydraulic assembly (400). The response module (500) includes a monitoring component (501) and a driving component (502). The monitoring component (501) is used to judge whether the diamond wire saw (S) breaks during operation, and the driving component (502) is used to drive the hydraulic assembly (400) to extend, so that the friction component (100) is in close contact with the diamond wire saw (S) to stop the diamond wire saw (S).

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