Magnetic powder brake with magnetic powder easy to replace
By designing a detachable cover assembly and magnetic powder brake for the reinforcement snap-in section, the problems of complex disassembly and insufficient connection strength in the prior art are solved, and efficient disassembly and stable connection are achieved.
Patent Information
- Application Number
- CN202421569273.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-07-03
AI Technical Summary
When existing magnetic powder brakes need to be replaced, they are complicated and time-consuming to disassemble and install, and insufficient connection strength can easily lead to separation of the cover plate and the housing.
A magnetic powder brake with easy-to-change magnetic powder is designed, adopting a removable cover assembly, the cover plate and the housing are connected by three mounting bolts, and reinforcement ribs and snaps are provided in the reinforcement to improve the connection strength.
It greatly improves the disassembly and assembly efficiency and maintenance efficiency, ensures the connection strength between the cover plate and the shell, and avoids the phenomenon of the cover plate and the shell separation when the brake is running.
Smart Images
Figure CN222542918U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of magnetic powder brakes, in particular to a magnetic powder brake with easily replaceable magnetic powder. Background Art
[0002] The magnetic powder brake is based on the electromagnetic principle and uses magnetic powder to transmit torque. It has the characteristic that the excitation current and the transmitted torque are basically linear. It can transmit a certain torque regardless of the slip, and has the advantages of fast response speed, simple structure, no pollution, no noise, no impact vibration, and energy saving. The traditional magnetic powder brake uses the front cover and the rear cover to close the internal chamber of the shell, and the front cover and the rear cover are connected to the shell with a large number of connecting bolts to achieve the connection and matching between the cover plate and the shell. The connection of a large number of bolts can improve the connection strength between the cover plate and the shell to avoid the separation of the cover plate and the shell during the operation of the brake, resulting in exposure of the chamber; because the brake is a consumable product, the magnetic powder brake needs to be repaired or replaced after long-term use, and the setting of a large number of bolts will sharply increase the disassembly and assembly of the brake, that is, greatly increase the disassembly and assembly time of the brake, and reduce the disassembly and assembly efficiency. If a small number of bolts are set, the connection strength between the cover plate and the shell will be too low, and the cover plate and the shell are easily separated during the operation of the brake. Utility Model Content
[0003] In view of the shortcomings of the prior art, the utility model provides a magnetic powder brake with easily replaceable magnetic powder, in order to solve the problem in the prior art of lacking a magnetic powder brake with easily replaceable magnetic powder and high connection strength between the cover plate and the shell.
[0004] To achieve the above-mentioned purpose, the utility model provides a magnetic powder brake with easy-to-replace magnetic powder, including a shell and a braking mechanism, the shell being provided with a receiving groove for accommodating the braking mechanism, the shell being detachably connected to a cover body assembly for sealing or exposing the receiving groove, the cover body assembly comprising two cover plates detachably connected to the two ends of the shell, the two cover plates being coaxially arranged with the shell, the two cover plates being provided with three connecting holes, the three connecting holes on the two cover plates being triangularly distributed, the shell being provided with a matching hole corresponding to the position of each connecting hole, each connecting hole being threadedly connected to the corresponding matching hole with a mounting bolt, and the shell being provided with a reinforcing member for cooperating with the mounting bolt to improve the connection strength between the cover plate and the shell.
[0005] The benefits of adopting the above technical solution are: in the above technology, when the cover plate needs to be disassembled and assembled, only three mounting bolts need to be disassembled and assembled to achieve the disassembly and assembly of the cover plate, and only three mounting bolts are provided to achieve the maintenance or replacement of the braking mechanism inside the shell, which greatly improves the disassembly and assembly efficiency and the maintenance efficiency; in the above technology, only three mounting bolts are provided on the cover plate, so that the connection strength between the cover plate and the shell is only affected by the three mounting bolts, and the connection strength between the cover plate and the shell can be improved by the cooperation of the reinforcement and the mounting bolts, thereby avoiding the separation of the cover plate and the shell when the brake is running.
[0006] The utility model is further provided with: the reinforcement member includes a plurality of groups of reinforcement ribs, and the plurality of groups of reinforcement ribs are arranged in one-to-one correspondence with the plurality of connecting holes, and each group of reinforcement ribs is composed of two reinforcement plates, and the ends of the two reinforcement plates are connected to the shell, and the starting ends of the two reinforcement plates are arranged through the connecting hole positions, and the two reinforcement plates are arranged opposite to each other, and the radial cross-sections of the two reinforcement plates are arranged in an arc shape, and a through hole for the installation bolt to pass through is formed between the two reinforcement plates, and the inner peripheral wall of the through hole is provided with a thread groove for cooperating with the thread of the installation bolt, and the starting ends of the two reinforcement plates are bent toward the outer wall of the cover plate and have a snap-on portion for buckling on the outer wall of the cover plate.
[0007] The benefits of adopting the above technical solution are: when installing the cover plate, the three connecting holes on the cover plate are respectively aligned with the respective corresponding reinforcing rib positions, and then the operator pushes the two reinforcing plates, which are slightly deformed under pressure so that the two reinforcing plates gather together, and at this time the cover plate is moved so that the two reinforcing plates are inserted into the connecting holes, and the operator no longer presses the reinforcing plates so that the reinforcing plates are deformed and reset, and at this time the buckle parts on the two reinforcing plates move to the outer wall of the cover plate as the reinforcing plates are reset, so that the bottom wall of the buckle part abuts and cooperates with the outer wall of the cover plate, and then the operator screws in the installation bolts, so that the installation bolts pass through the through holes and are fixed in the through holes by cooperating with the threads of the threaded grooves, and then continues to screw in the installation bolts to achieve the installation of the bolts The threaded connection with the matching hole realizes the fastening connection between the cover plate and the shell; in the above technology, the end of the reinforcing plate is connected to the shell, and the hook-fitting with the cover body is realized through the snap-fitting part at the beginning of the reinforcing plate, so as to prevent the cover plate from separating from the shell along the axial direction of the shell, thereby improving the connection strength between the cover plate and the shell, and at the same time, the screwing in of the mounting bolts is used to squeeze the reinforcing plate so that the outer peripheral wall of the reinforcing plate and the inner peripheral wall of the connecting hole are expanded and fitted, thereby improving the connection strength between the reinforcing plate and the connecting hole, thereby improving the connection strength between the shell and the cover plate, thereby avoiding the phenomenon of separation of the cover plate and the shell when the brake is running; in the above technology, a threaded groove is circumferentially opened in the through hole, and the threaded groove is divided into two parts and is arranged on the inner peripheral walls of the two reinforcing plates.
[0008] The utility model is further configured that: the reinforcing plate is made of a semi-rigid and semi-elastic material, and the diameter of the perforation is smaller than the diameter of the screw end of the mounting bolt.
[0009] The benefits of adopting the above technical solution are: in the above technology, the reinforcing plate is made of a semi-rigid and semi-elastic material and the diameter of the through hole is smaller than the diameter of the screw end of the mounting bolt, so that the reinforcing plate has the ability to deform. When squeezed by the mounting bolt, the distance between the two reinforcing plates increases, so that the diameter of the through hole is adapted to the diameter of the screw end of the mounting bolt. After the mounting bolt is screwed in and cooperates with the through hole thread, the mounting bolt can squeeze the reinforcing plate, so that the outer wall of the reinforcing plate and the inner wall of the connecting hole are expanded and fit, thereby improving the stability of the mounting bolt in the connecting hole, and then improving the snap-on strength between the snap portion and the cover plate, thereby improving the connection strength between the cover plate and the shell.
[0010] The utility model is further provided with: a plurality of convex teeth are arranged on the inner wall of the reinforcing plate along the axial direction of the perforation, a plurality of tooth grooves are opened on the inner peripheral wall of the connecting hole along the axial direction, and the plurality of convex teeth correspond to the plurality of tooth grooves one by one and are plug-fittedly arranged.
[0011] The benefit of adopting the above technical solution is that when the reinforcing plate is squeezed by the installation bolts and fits on the connecting hole, the tooth grooves and the convex teeth are engaged with each other, thereby improving the connection strength between the reinforcing plate and the connecting hole and preventing the reinforcing plate from falling out along the axis of the connecting hole.
[0012] The utility model is further configured that: the two reinforcing plates are combined in a ring shape and the outer peripheral walls of the two reinforcing plates are in contact with the inner peripheral wall of the connecting hole.
[0013] The benefit of adopting the above technical solution is that: in the above technology, the two reinforcing plates are arranged in a ring shape and the outer walls of the two reinforcing plates are arranged in contact with the inner walls of the connecting holes, so that the reinforcing plates can fit the connecting holes when squeezed by the installation bolts, thereby improving the fitting strength between the reinforcing plates and the connecting holes.
[0014] The utility model is further configured that: the radial cross section of the buckle portion is a right-angled trapezoid, the bottom wall of the buckle portion is abutted and matched with the outer wall of the cover plate, and the top wall of the buckle portion is abutted and matched with the bottom wall of the nut end of the mounting bolt.
[0015] The benefits of adopting the above technical solution are: in the above technology, the radial cross-section of the snap portion is set to a right-angled trapezoid, so as to improve the snap strength between the snap portion and the cover plate, and at the same time, after the mounting bolt is fully screwed in, the nut end of the mounting bolt is buckled against the top wall of the snap portion, so that the clamping and limiting of the snap portion is achieved through the cooperation of the mounting bolt and the shell, thereby improving the snap strength and stability between the snap portion and the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a cross-sectional view of the utility model;
[0017] Figure 2 for Figure 1 Enlarged view of part A. DETAILED DESCRIPTION
[0018] The utility model provides a magnetic powder brake with easily replaceable magnetic powder, comprising a shell 1 and a brake mechanism 11, wherein the shell 1 is provided with a receiving groove 12 for accommodating the brake mechanism 11, and the shell 1 is detachably connected with a cover assembly for sealing or exposing the receiving groove 12, and the cover assembly comprises two cover plates 2 detachably connected to both ends of the shell 1, the two cover plates 2 are coaxially arranged with the shell 1, and the two cover plates 2 are provided with three connecting holes 21, and the three connecting holes 21 on the two cover plates 2 are arranged in a triangular distribution, and the shell 1 corresponds to A matching hole 13 is provided at each connection hole 21, and a mounting bolt 3 is threadedly connected between each connection hole 21 and the corresponding matching hole 13. A reinforcing member for cooperating with the mounting bolt 3 to improve the connection strength between the cover plate 2 and the shell 1 is provided on the shell 1, and the reinforcing member includes a plurality of groups of reinforcing ribs, and the plurality of groups of reinforcing ribs are arranged one-to-one with the plurality of connection holes 21, and each group of the reinforcing ribs is composed of two reinforcing plates 4, and the ends of the two reinforcing plates 4 are connected to the shell 1, and the beginnings of the two reinforcing plates 4 pass through the connection holes 2 1 position, the two reinforcing plates 4 are arranged opposite to each other, the radial cross-sections of the two reinforcing plates 4 are arranged in an arc shape, and a through hole 41 for the installation bolt 3 to pass through is formed between the two reinforcing plates 4, the inner peripheral wall of the through hole 41 is provided with a thread groove 42 for threading with the installation bolt 3, the starting ends of the two reinforcing plates 4 are bent toward the outer wall of the cover plate 2 to have a buckle portion 43 for buckling on the outer wall of the cover plate 2, the reinforcing plate 4 is made of a semi-rigid and semi-elastic material, the diameter of the through hole 41 is smaller than the diameter of the screw end of the installation bolt 3, and the inner peripheral wall of the reinforcing plate 4 is provided with a thread groove 42 for threading with the installation bolt 3. A plurality of convex teeth 44 are arranged along the axial direction of the through hole 41 of the wall, and a plurality of tooth grooves 22 are opened on the inner peripheral wall of the connecting hole 21 along the axial direction thereof. The plurality of convex teeth 44 correspond to the plurality of tooth grooves 22 one by one and are plug-fitted. The two reinforcing plates 4 are combined in an annular shape and the outer peripheral walls of the two reinforcing plates 4 are in contact with the inner peripheral wall of the connecting hole 21. The radial cross-section of the buckle portion 43 is a right-angled trapezoid. The bottom wall of the buckle portion 43 is abutted against the outer wall of the cover plate 2, and the top wall of the buckle portion 43 is abutted against the bottom wall of the nut end of the mounting bolt 3.
[0019] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.
Claims
1. A magnetic powder brake with easily replaceable magnetic powder, comprising a housing and a brake mechanism, wherein the housing is provided with a receiving groove for accommodating the brake mechanism, and a cover assembly for sealing or exposing the receiving groove is detachably connected to the housing, characterized in that: The cover body assembly includes two cover plates that are detachably connected to the two ends of the shell, the two cover plates are coaxially arranged with the shell, three connecting holes are opened on the two cover plates, and the three connecting holes on the two cover plates are triangularly distributed. The shell has a matching hole corresponding to each connecting hole position, and each connecting hole is threadedly connected to the corresponding matching hole with a mounting bolt. The shell is provided with a reinforcement member for cooperating with the mounting bolt to improve the connection strength between the cover plate and the shell.
2. The magnetic powder brake with easily replaceable magnetic powder according to claim 1, characterized in that: The reinforcement member includes a plurality of groups of reinforcement ribs, and the plurality of groups of reinforcement ribs are arranged in a one-to-one correspondence with the plurality of connecting holes. Each group of reinforcement ribs is composed of two reinforcement plates. The ends of the two reinforcement plates are connected to the shell, and the starting ends of the two reinforcement plates are arranged to pass through the connecting holes. The two reinforcement plates are arranged opposite to each other. The radial cross-sections of the two reinforcement plates are arranged in an arc shape, and a through hole for the installation bolt to pass through is formed between the two reinforcement plates. The inner peripheral wall of the through hole is provided with a thread groove for cooperating with the thread of the installation bolt. The starting ends of the two reinforcement plates are bent toward the outer wall of the cover plate to have a snap-on portion for buckling on the outer wall of the cover plate.
3. The magnetic powder brake with easily replaceable magnetic powder according to claim 2, characterized in that: The reinforcing plate is made of a semi-rigid and semi-elastic material, and the diameter of the perforation is smaller than the diameter of the screw end of the mounting bolt.
4. The magnetic powder brake with easily replaceable magnetic powder according to claim 3, characterized in that: The inner wall of the reinforcing plate is arranged with a plurality of protruding teeth along the axial direction of the perforation, and the inner peripheral wall of the connecting hole is provided with a plurality of tooth grooves along the axial direction, and the plurality of protruding teeth correspond to the plurality of tooth grooves one by one and are plug-fittedly arranged.
5. The magnetic powder brake with easily replaceable magnetic powder according to claim 2, characterized in that: The two reinforcing plates are combined in a ring shape and the outer peripheral walls of the two reinforcing plates are in contact with the inner peripheral wall of the connecting hole.
6. The magnetic powder brake with easily replaceable magnetic powder according to claim 2, characterized in that: The radial cross section of the buckle portion is arranged in a right-angle trapezoidal shape, the bottom wall of the buckle portion is arranged in abutment with the outer wall of the cover plate, and the top wall of the buckle portion is arranged in abutment with the bottom wall of the nut end of the mounting bolt.