Steel wire rope brake with high safety

Abstract

The utility model discloses a steel wire rope brake with high safety, which comprises a supporting plate, a transmission assembly is arranged on the side wall of the supporting plate, the transmission assembly comprises a main bevel gear and a driven bevel gear, a reverse stopping assembly is arranged on the side wall of the main bevel gear, the reverse stopping assembly comprises a ratchet wheel and a clamping block, a brake assembly is arranged on the side wall of the supporting plate, and the brake assembly comprises a brake block. The steel wire rope brake with high safety adopts a bevel gear direct drive structure. Through the driving thrust of an electric push rod, the brake assembly's response time is effectively shortened by an efficient transmission system composed of a bevel gear rack, a driving bevel gear and a driven bevel gear, and the single-stage transmission efficiency is effectively improved. In addition, an integrated ratchet wheel-spring self-locking assembly is arranged. When the brake power is interrupted, the spring drives the clamping block to be embedded in the ratchet wheel groove, the main bevel gear is limited and stopped, the brake block is prevented from returning, and the risk of brake failure of the brake during power failure is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of wire rope braking technology, specifically a high-safety wire rope brake. Background Technology

[0002] A wire rope brake is a mechanical safety device specifically designed to control the movement of a wire rope. Its core function is to apply controllable power to the moving wire rope to achieve deceleration, stopping, or maintaining a stationary state. This device is widely used in environments such as mines and elevators. When the traction wire rope breaks, it is a safety protection device that reacts quickly and captures the wire rope in time to reduce failure losses and personnel injuries.

[0003] Although the existing wire rope brake has many beneficial effects, the following problems still exist: the active thrust of the electric actuator is converted through two stages of S-shaped connecting rod and straight connecting rod, resulting in high mechanical energy loss and low transmission efficiency, which leads to a delayed response of the braking component. Secondly, the lack of a backstop component means that when the brake is de-energized, the electric actuator fails its self-locking mechanism, causing the brake block to unexpectedly retract and resulting in brake failure on the wire rope. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] 1. Technical problems to be solved:

[0006] To address the aforementioned issues of insufficient transmission efficiency and lack of safety redundancy, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a highly safe wire rope brake, which adopts a helical gear direct drive structure: through an electric actuator, the active thrust is transmitted, and then through a high-efficiency transmission system composed of a helical rack, an active helical gear, and a driven helical gear. The single-stage transmission efficiency is effectively improved, and the response time of the braking component is effectively shortened. At the same time, a ratchet-spring self-locking component is integrated. When the brake power is interrupted, the spring-driven locking block is embedded in the ratchet groove to limit and prevent the main helical gear from retracting, effectively preventing the brake block from retracting and eliminating the risk of brake failure when the power is off.

[0008] 2. Technical Solution:

[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0010] A high-safety wire rope brake includes a support plate, a transmission assembly provided on the side wall of the support plate, the transmission assembly including a main helical gear and a driven helical gear, a backstop assembly provided on the side wall of the main helical gear including a ratchet and a locking block, and a braking assembly provided on the side wall of the support plate including a braking block.

[0011] As a preferred embodiment of the high-safety wire rope brake of this utility model, the support plate sidewall is fixedly connected to the outer shell by screws, the support plate sidewall is welded to the mounting base, and the mounting base sidewall is integrally formed and connected to multiple mounting feet.

[0012] As a preferred embodiment of the high-safety wire rope brake of this utility model, the transmission component includes an electric actuator, a connecting block is welded to the outer circumference of the output end of the electric actuator, and a plurality of helical teeth are welded to the side wall of the connecting block. The side wall of the helical teeth meshes with the main helical gear, and the outer circumference of the main helical gear meshes with the driven helical gear.

[0013] As a preferred embodiment of a high-safety wire rope brake according to this utility model, the anti-reverse assembly includes a limiting frame, a spring welded to the inner cavity sidewall of the limiting frame, a locking block welded to the top of the spring, and the top of the locking block closely abutting the ratchet.

[0014] As a preferred embodiment of a high-safety wire rope brake according to this utility model, the braking assembly includes an eccentric wheel, a rotating shaft is inserted into the side wall of the eccentric wheel, a connecting rod is rotatably connected to the side wall of the eccentric wheel, a hinge seat is rotatably connected to the bottom of the connecting rod, and the brake block is welded to the side wall of the hinge seat.

[0015] As a preferred embodiment of the high-safety wire rope brake of this utility model, the side wall of the support plate is provided with multiple sliding grooves, and the side wall of the brake block is welded with a slider that matches the shape and size of the sliding grooves.

[0016] As a preferred embodiment of a high-safety wire rope brake according to this utility model, the brake block includes a support frame, a disc spring assembly is fixedly connected to the side wall of the support frame by bolts, a clamping block is closely attached to the side wall of the support frame, and a plurality of circular insertion holes are provided on the side wall of the clamping block.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This type of high-safety wire rope brake adopts a helical gear direct drive structure: the active thrust is transmitted through an electric actuator, and then through a high-efficiency transmission system composed of helical rack, active helical gear and driven helical gear, which effectively improves the single-stage transmission efficiency and effectively shortens the response time of the braking components.

[0020] This type of high-safety wire rope brake integrates a ratchet-spring self-locking assembly. When the brake power is interrupted, the spring-driven locking block engages with the ratchet groove to limit and prevent the main helical gear from retracting, effectively preventing the brake block from returning and eliminating the risk of brake failure when the power is off. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of a high-safety wire rope brake according to this utility model;

[0023] Figure 2 This is a schematic diagram of the transmission component structure of a high-safety wire rope brake according to this utility model;

[0024] Figure 3 This is a schematic diagram of the anti-reverse component structure of a high-safety wire rope brake according to this utility model;

[0025] Figure 4 This is a schematic diagram of the braking component structure of a high-safety wire rope brake according to this utility model;

[0026] Figure 5 This is a schematic diagram of the brake block structure of a high-safety wire rope brake according to this utility model.

[0027] The following are the labels in the diagram: 100, support plate; 110, mounting base; 120, outer casing; 130, wire rope; 200, transmission assembly; 210, electric actuator; 211, connecting block; 220, main helical gear; 230, driven helical gear; 300, anti-reverse assembly; 310, ratchet; 320, locking block; 330, spring; 340, limit frame; 400, braking assembly; 410, eccentric wheel; 420, rotating shaft; 430, connecting rod; 440, hinge seat; 450, brake block; 451, support frame; 452, disc spring assembly; 453, clamping block. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0030] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0033] This utility model provides an overall structural diagram of an embodiment of a high-safety wire rope brake, including:

[0034] Please see Figures 1-5 This embodiment of a high-safety wire rope brake includes a support plate 100, a transmission assembly 200 provided on the side wall of the support plate 100, the transmission assembly 200 including a main helical gear 220 and a driven helical gear 230, a backstop assembly 300 provided on the side wall of the main helical gear 220, the backstop assembly 300 including a ratchet 310 and a locking block 320, and a braking assembly 400 provided on the side wall of the support plate 100, the braking assembly 400 including a braking block 450.

[0035] It is worth noting that, in order to facilitate the installation of the wire rope brake, specifically, the support plate 100 has a housing 120 fixedly connected to its side wall by screws. The housing 120 is used to protect the transmission component 200. The support plate 100 has a mounting base 110 welded to its side wall to facilitate the installation and fixing of the brake. The mounting base 110 has multiple mounting feet integrally formed on its side wall to facilitate bolt fixing installation.

[0036] Next, to facilitate the transmission assembly 200 driving the braking assembly 400, specifically, the transmission assembly 200 includes an electric push rod 210 for providing active mechanical energy. A connecting block 211 is welded to the outer circumference of the output end of the electric push rod 210, and multiple helical teeth are welded to the side wall of the connecting block 211 to facilitate driving the main helical gear 220 to rotate. The side wall of the helical teeth meshes with the main helical gear 220, and the outer circumference of the main helical gear 220 meshes with the driven helical gear 230 to drive the eccentric wheel 410 to rotate.

[0037] Meanwhile, in order to prevent the main helical gear 220 from turning back, specifically, the anti-reverse assembly 300 includes a limit frame 340. A spring 330 is welded to the inner side wall of the limit frame 340 to provide continuous thrust to the locking block 320. The locking block 320 is welded to the top of the spring 330 to limit and fix the ratchet 310. The top of the locking block 320 is in close contact with the ratchet 310.

[0038] Furthermore, to facilitate braking of the wire rope 130, the braking assembly 400 includes an eccentric wheel 410, a rotating shaft 420 inserted into the side wall of the eccentric wheel 410, the side wall of the rotating shaft 420 passing through the support plate 100 and welded to the helical gear 230, a connecting rod 430 rotatably connected to the side wall of the eccentric wheel 410 for driving the eccentric wheel 410, a hinge seat 440 rotatably connected to the bottom of the connecting rod 430 for converting rotational motion into lateral movement, and a brake block 450 welded to the side wall of the hinge seat 440 for braking the wire rope 130.

[0039] It is worth noting that, in order to facilitate the sliding of the brake block 450, the side wall of the support plate 100 is provided with multiple grooves, and the side wall of the brake block 450 is welded with sliders that match the shape and size of the grooves, so as to facilitate the sliding support of the brake block 450.

[0040] Finally, in order to improve the clamping force of the brake block 450, specifically, the brake block 450 includes a support frame 451, and a disc spring assembly 452 is fixedly connected to the side wall of the support frame 451 by bolts. The disc spring assembly 452 is pre-tightened to provide continuous thrust to the clamping block 453. The side wall of the support frame 451 is in close contact with the clamping block 453, and the side wall of the clamping block 453 has multiple circular insertion holes to facilitate the installation of the disc spring assembly 452.

[0041] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0042] Combination Figures 1-5 The specific usage process of this embodiment of a high-safety wire rope brake is as follows:

[0043] 1: Install the brake in the designated position using bolts via the mounting bracket 110, and thread the wire rope 130 between the two brake blocks 450;

[0044] 2: When the wire rope 130 breaks, the wire rope 130 is out of the detection range of the electromagnetic sensor used to detect the position of the wire rope 130. At this time, the electromagnetic sensor sends a fault signal to the PLC. After receiving the fault signal, the PLC sends a signal to the electric push rod 210, causing its top output end to extend. Then the connecting block 211 drives the helical gear block to rise vertically. The helical gear block drives the main helical gear 220 to rotate. The main helical gear 220 drives the driven helical gear 230 to rotate. Then the driven helical gear 230 drives the eccentric wheel 410 to rotate through the rotating shaft 420.

[0045] 3: After the eccentric wheel 410 rotates, it drives the connecting rod 430 to move. The connecting rod 430, together with the hinge seat 440, drives the brake block 450 to move laterally. Then, the two brake blocks 450 clamp inward to brake the wire rope 130. At the same time, the clamp block 320 fixes the ratchet 310 due to the continuous thrust of the spring 330, so as to prevent the brake block 450 from moving in the opposite direction and causing the brake to fail.

[0046] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A high-safety wire rope brake, characterized in that, The system includes a support plate (100), a transmission assembly (200) is provided on the side wall of the support plate (100), the transmission assembly (200) includes a main helical gear (220) and a driven helical gear (230), the side wall of the main helical gear (220) is provided with a backstop assembly (300), the backstop assembly (300) includes a ratchet (310) and a locking block (320), and the side wall of the support plate (100) is provided with a braking assembly (400), the braking assembly (400) includes a braking block (450).

2. The high-safety wire rope brake according to claim 1, characterized in that, The side wall of the support plate (100) is fixedly connected to the outer shell (120) by screws. The side wall of the support plate (100) is welded with a mounting base (110). The side wall of the mounting base (110) is integrally formed and connected with multiple mounting feet.

3. The high-safety wire rope brake according to claim 1, characterized in that, The transmission assembly (200) includes an electric actuator (210), a connecting block (211) is welded to the outer circumference of the output end of the electric actuator (210), a plurality of helical teeth are welded to the side wall of the connecting block (211), the side wall of the helical teeth meshes with the main helical gear (220), and the outer circumference of the main helical gear (220) meshes with the driven helical gear (230).

4. The high-safety wire rope brake according to claim 1, characterized in that, The anti-reverse assembly (300) includes a limiting frame (340), a spring (330) is welded to the inner cavity side wall of the limiting frame (340), and the locking block (320) is welded to the top of the spring (330), with the top of the locking block (320) closely attached to the ratchet (310).

5. The high-safety wire rope brake according to claim 1, characterized in that, The braking assembly (400) includes an eccentric wheel (410), a rotating shaft (420) is inserted into the side wall of the eccentric wheel (410), a connecting rod (430) is rotatably connected to the side wall of the eccentric wheel (410), a hinge seat (440) is rotatably connected to the bottom of the connecting rod (430), and the brake block (450) is welded to the side wall of the hinge seat (440).

6. The high-safety wire rope brake according to claim 3, characterized in that, The support plate (100) has multiple grooves on its sidewall, and the brake block (450) has a slider welded to its sidewall that matches the shape and size of the grooves.

7. The high-safety wire rope brake according to claim 3, characterized in that, The brake block (450) includes a support frame (451), and a disc spring assembly (452) is fixedly connected to the side wall of the support frame (451) by bolts. A clamping block (453) is closely attached to the side wall of the support frame (451), and a plurality of circular insertion holes are provided on the side wall of the clamping block (453).

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