Tiny frictional resistance rotor brake control device
By using balls in the rotor brake control device as the contact point between the dynamic track and the static track, the problem of large sliding friction resistance in the existing technology is solved, and smaller friction resistance and more stable control effects are achieved.
Patent Information
- Application Number
- CN202421287697.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-06-06
AI Technical Summary
In existing rotor brake control devices, the linear sliding between the dynamic track and the static track produces a large sliding friction resistance, which increases the difficulty of handling and may cause damage or deformation of the dynamic track.
Balls are used as the contact points between the dynamic track and the static track, and the balls are fixed by the cage to achieve rolling friction between the dynamic track and the static track and reduce friction resistance.
It effectively reduces the frictional resistance, eases the difficulty of maneuvering, and prevents damage and deformation of the dynamic track.
Smart Images
Figure CN222361072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotor brake control, in particular to a rotor brake control device with small friction resistance. Background Art
[0002] The rotor brake control devices commonly used now all adopt a linear sliding structure. The dynamic track is in direct contact with the static track. When moving, the two will produce a large sliding friction resistance. In mild cases, it will increase the difficulty of operation for operators. In severe cases, the dynamic track will be damaged or even deformed and stuck. Utility Model Content
[0003] The purpose of the utility model is to solve the above technical problems, thereby providing a rotor brake control device with small friction resistance;
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0005] The utility model provides a small friction resistance rotor brake control device.
[0006] It includes a brake ball flexible steel cable, a brake handle, a safety ball flexible steel cable, and a safety handle. The brake ball flexible steel cable connects the brake handle and the brake valve to transmit the rotor brake command; the safety ball flexible steel cable is used to connect the safety handle and the safety valve to transmit the rotor brake safety command. The brake ball flexible steel cable has the same structure as the safety ball flexible steel cable. The brake ball flexible steel cable includes a fixed sleeve and a metal hose. The metal hose is arranged at one end of the fixed sleeve. A sliding mechanism is arranged in the metal hose. The sliding mechanism includes a dynamic guide rail, a ball, a retaining frame, and a static guide rail. The static guide rail is arranged in two groups. The two groups of static guide rails are respectively arranged on the upper and lower inner walls of the metal hose. The retaining frame is arranged in two groups. The two groups of retaining frames are arranged between the two groups of static guide rails. The dynamic guide rail is arranged between the two groups of retaining frames. The ball is arranged on the retaining frame. One end surface of the ball contacts the surface of the static guide rail, and the other end surface of the ball contacts the surface of the dynamic guide rail.
[0007] Optionally, positioning grooves are formed vertically through the two groups of retaining frames, and the balls are arranged in the positioning grooves.
[0008] Optionally, the positioning grooves are arranged in a plurality of groups, the positioning grooves in the plurality of groups are arranged at even intervals, and the balls are arranged in a one-to-one correspondence with the positioning grooves.
[0009] Optionally, the two groups of retaining frames are arranged in parallel.
[0010] Optionally, the positioning grooves on the two groups of retaining frames are arranged on the same vertical axis.
[0011] Beneficial effects of the utility model
[0012] In the internal structure of the steel cable of the utility model, ball contact is adopted between the dynamic track and the static track, thereby realizing that the old sliding friction between the dynamic track and the static track is changed to rolling friction with smaller resistance. The balls are fixed by a retaining frame to ensure that the balls will not be misplaced, thereby making the resistance of the ball movement smaller. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the brake ball flexible cable structure of the utility model.
[0014] Figure 2 It is a side view of the metal hose of the utility model.
[0015] Figure 3 This is a cross-sectional view of the metal hose structure of the utility model.
[0016] Explanation of the reference numerals: 1-brake ball flexible steel cable, 2-fixing sleeve, 3-metal hose, 4-dynamic guide rail, 5-ball, 6-cage, 7-static guide rail. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] Example
[0019] like Figure 1-Figure 3 As shown, the utility model provides a small friction resistance rotor brake control device.
[0020] It includes a brake ball flexible steel cable 1, a brake handle, a safety ball flexible steel cable, and a safety handle. The brake ball flexible steel cable 1 connects the brake handle and the brake valve to transmit the rotor brake command; the safety ball flexible steel cable is used to connect the safety handle and the safety valve to transmit the rotor brake insurance command. The brake ball flexible steel cable 1 has the same structure as the safety ball flexible steel cable. The brake ball flexible steel cable 1 includes a fixed sleeve 2 and a metal hose 3. The metal hose 3 is arranged at one end of the fixed sleeve 2. A sliding mechanism is arranged in the metal hose 3. The sliding mechanism includes A dynamic guide rail 4, a ball 5, a retainer 6, and a static guide rail 7. The static guide rail 7 is provided in two groups. The two groups of static guide rails 7 are respectively provided on the upper and lower inner side walls of the metal hose 3. The retainer 6 is provided in two groups. The two groups of retainers 6 are provided between the two groups of static guide rails 7. The dynamic guide rail 4 is provided between the two groups of retainers 6. The ball 5 is provided on the retainer 6. One end surface of the ball 5 contacts the surface of the static guide rail 7, and the other end surface of the ball 5 contacts the surface of the dynamic guide rail 4.
[0021] The two groups of retaining frames 6 are both provided with positioning grooves running through them from top to bottom, and the balls 5 are arranged in the positioning grooves; the positioning grooves are arranged in several groups, and the positioning grooves in the several groups are evenly spaced, the balls 5 and the positioning grooves are arranged one by one, the two groups of retaining frames 6 are arranged in parallel, and the positioning grooves on the two groups of retaining frames 6 are arranged on the same vertical axis.
[0022] The rotor brake control device comprises a ball-flexible steel cable and a control handle. The brake ball-flexible steel cable 1 is used in combination with the brake handle, and the insurance ball-flexible steel cable is used in combination with the insurance handle.
[0023] One end of the rod end joint bearing of the brake ball flexible steel cable 1 is connected to the interface of the brake handle Ø5H7 through an M5 bolt, and the other end of the quick release joint is connected to the on-board brake valve. Because the rod end joint bearing and the quick release joint are connected to the pull rods riveted at both ends of the dynamic guide rail 4 through threaded connections, the four form an axially rigid component. The operating force and displacement generated by pulling the brake handle are transmitted to the on-board brake valve through the four, thereby achieving the purpose of transmitting the rotor brake command.
[0024] The two flange bearings on the brake ball flexible cable 1 provide a mounting interface for installation on the cable machine.
[0025] The safety ball flexible cable works in the same way as the safety handle. One end of the safety ball flexible cable rod end joint bearing is connected to the interface of the safety handle Ø5H7 through an M5 bolt, and the other end of the quick release joint is connected to the on-board safety valve. Because the rod end joint bearing and the quick release joint are connected to the pull rod riveted at both ends of the dynamic guide rail 4 through threaded connection, the four form an axially rigid component. The operating force and displacement generated by pulling the safety handle are transmitted to the on-board safety valve through the four, achieving the purpose of transmitting the rotor brake insurance command.
[0026] The dynamic guide rail 4 moves left and right by sliding relative to the ball 5; the retaining frame 6 serves to position the ball 5 to prevent the ball 5 from moving in a disorderly manner or even falling as the dynamic guide rail 4 moves; the static guide rail 7 shapes the entire structure and ensures that the ball 5 can move freely; the metal hose 3 is wound as shown in the figure, which protects the entire internal structure and can bend radially under the premise of ensuring the axial rigidity of the steel cable.
[0027] In the internal structure of the steel cable of the utility model, the dynamic track and the static track are in contact with each other by means of balls 5, thereby realizing that the old sliding friction between the dynamic track and the static track is changed to rolling friction with less resistance. The balls 5 are fixed by retaining frames 6 to ensure that the balls will not be misplaced, thereby making the movement resistance of the balls 5 smaller.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A small friction resistance rotor brake control device, characterized in that: It includes a brake ball flexible steel cable, a brake handle, a safety ball flexible steel cable, and a safety handle. The brake ball flexible steel cable connects the brake handle and the brake valve to transmit the rotor brake command; the safety ball flexible steel cable is used to connect the safety handle and the safety valve to transmit the rotor brake safety command. The brake ball flexible steel cable has the same structure as the safety ball flexible steel cable. The brake ball flexible steel cable includes a fixed sleeve and a metal hose. The metal hose is arranged at one end of the fixed sleeve. A sliding mechanism is arranged in the metal hose. The sliding mechanism includes a dynamic guide rail, a ball, a retaining frame, and a static guide rail. The static guide rail is arranged in two groups. The two groups of static guide rails are respectively arranged on the upper and lower inner walls of the metal hose. The retaining frame is arranged in two groups. The two groups of retaining frames are arranged between the two groups of static guide rails. The dynamic guide rail is arranged between the two groups of retaining frames. The ball is arranged on the retaining frame. One end surface of the ball contacts the surface of the static guide rail, and the other end surface of the ball contacts the surface of the dynamic guide rail.
2. A micro-frictional resistance rotor brake control device according to claim 1, characterized in that: The two groups of retaining frames are both provided with positioning grooves extending through the upper and lower parts, and the balls are arranged in the positioning grooves.
3. A micro-frictional resistance rotor brake control device according to claim 2, characterized in that: The positioning grooves are arranged in a plurality of groups, the positioning grooves in the plurality of groups are arranged evenly spaced, and the balls are arranged in a one-to-one correspondence with the positioning grooves.
4. A micro-frictional resistance rotor brake control device according to claim 2, characterized in that: The two groups of retaining frames are arranged in parallel.
5. A micro-frictional resistance rotor brake control device according to claim 4, characterized in that: The positioning grooves on the two groups of retaining frames are arranged on the same vertical axis.