Ultra-thin de-excitation brake for precision equipment

Abstract

This invention relates to the field of brake technology, specifically disclosing an ultra-thin non-excitation brake for precision equipment, comprising: a housing and a sealing plate. The end of the housing away from the sealing plate is folded inward to form an L-shaped air guide ring plate. An integrally formed limiting ring plate is provided on the inner circumference of the housing. A wind-blocking protrusion is provided on the side of the limiting ring plate near the air guide ring plate. Multiple limiting studs are provided between the limiting ring plate and the sealing plate. Multiple air outlet holes are provided on the side wall of the sealing plate. A transverse sliding member is slidably installed between the limiting ring plate and the sealing plate via the limiting studs. Multiple compression springs are provided between the sealing plate and the transverse sliding member, and the compression springs are sleeved with adjacent limiting studs. This invention achieves a compact and thin design for the brake, realizes power-off self-locking and two-stage redundant braking of the non-excitation brake, and achieves a passive heat dissipation design that utilizes the equipment's own rotational power to drive the fan blades for forced air cooling.

Description

Technical Field

[0001] This invention relates to the field of brake technology, and more specifically to an ultra-thin non-excitation brake for precision equipment. Background Technology

[0002] In precision manufacturing, semiconductor equipment, medical devices, and aerospace, servo motors and transmission systems widely employ non-excitation brakes (power-off braking type electromagnetic brakes) as safety protection devices. These brakes automatically engage when equipment loses power or stops in an emergency, preventing accidental slippage or falling of moving parts, which is crucial for ensuring the safety of equipment and personnel. As equipment develops towards higher precision and integration, higher demands are placed on the thinner, lighter, and more reliable design of brakes.

[0003] Currently, most non-excitation brakes on the market adopt a single-stage friction braking structure, which generates braking torque by pressing friction pads with a spring. When energized, electromagnetic force overcomes the spring force to separate the friction pads. This single-stage braking structure has certain limitations: once the friction pads wear or the springs fatigue, the braking torque will decrease, posing a risk of brake failure. Furthermore, in applications requiring high-frequency start-stop, the brake frequently engages and disengages, generating a large amount of frictional heat between the friction pads and the braking surface. If this heat cannot be dissipated in time, it will lead to accelerated wear of the brake pads, decreased braking performance, and even brake failure. Traditional brakes mostly rely on natural cooling or external fan cooling, which has limited heat dissipation efficiency and increases equipment size and energy consumption. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, the present invention provides an ultra-thin non-excitation brake for precision equipment, which can solve the problems mentioned in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] Ultra-thin non-excitation brakes for precision equipment include:

[0007] The casing and the sealing plate are provided. The end of the casing away from the sealing plate is folded inward to form an L-shaped air guide ring. An integrally formed limiting ring plate is provided on the inner circumference of the casing. A windproof protrusion is provided on the side of the limiting ring plate near the air guide ring plate. Multiple limiting studs are provided between the limiting ring plate and the sealing plate. Multiple air outlets are provided on the side wall of the sealing plate. A transverse sliding member is slidably installed between the limiting ring plate and the sealing plate through the limiting studs. Multiple compression springs are provided between the sealing plate and the transverse sliding member. The compression spring is sleeved with the adjacent limiting stud. A rotating connector is rotatably installed inside the housing. The axial cross section of the rotating connector is stepped, forming a high-step section, a middle-step section, and a low-step section in sequence. The outer walls of the low-step section and the middle-step section of the rotating connector are provided with multiple guide grooves. A braking force-bearing component is fixedly sleeved on the low-step section of the rotating connector. The braking force-bearing component is constructed as a circular tube, and braking inclined surfaces are formed on the inner and outer peripheries of one end of the component, respectively.

[0008] The magnetic attraction component, located inside the housing, is used to drive the lateral movement component to move laterally against the spring force of the compression spring;

[0009] The first braking structure is located on the side wall of the transverse component;

[0010] The second braking structure is located on the side of the limiting ring plate near the sealing plate and slides radially along the limiting ring plate;

[0011] The air-generating structure is provided in a ring-shaped air-generating cavity formed between the housing, the limiting ring plate, and the rotating connector.

[0012] Preferably, the vertical section of the air guide ring plate of the housing is provided with multiple mounting holes for assisting in fixing the non-excitation brake.

[0013] Preferably, the axial cross-section of the transverse component is spoon-shaped, including a handle, a diameter, and a head, wherein the handle is slidably connected to the limiting stud.

[0014] Preferably, the inner diameter of the windshield convex ring is larger than the inner diameter of the limiting ring plate, the end of the windshield convex ring abuts against the rotary connector through a wear-resistant coating, the inner peripheral wall of the rotary connector is provided with an installation groove, a bearing is provided between the outer peripheral wall of the middle step of the rotary connector and the windshield convex ring, and the inner diameter of the limiting ring plate is larger than the outer diameter of the middle step of the rotary connector.

[0015] Preferably, the braking force-bearing component is partially fitted with the inner peripheral wall of the limiting ring plate and forms a rotatable connection. The rotatable connector, braking force-bearing component, limiting ring plate and windproof convex ring form an air guide cavity. The transverse component, braking force-bearing component, limiting ring plate and sleeve form an open cavity. The side wall of the limiting ring plate is provided with a diversion channel. The diversion channel is T-shaped and is used to connect the ring-shaped air-bearing cavity, the air guide cavity and the open cavity.

[0016] Preferably, the magnetic attraction assembly includes a magnetic yoke assembly and an armature. The magnetic yoke assembly is fixedly installed on the side of the sealing plate near the housing, and the armature is installed on the side wall of the transverse component and matches the magnetic yoke assembly.

[0017] Preferably, the first braking structure includes two brake pads correspondingly disposed on the two opposing inner walls of the scoop head of the transverse member, respectively matching the two braking inclined surfaces of the braking force-bearing member.

[0018] Preferably, the second braking structure includes multiple brake blocks that match the outer circumferential wall of the braking force-bearing component. The limiting ring plate has multiple receiving grooves on the side near the sealing plate. Limiting posts are provided radially along the limiting ring plate in the receiving grooves. The brake blocks are slidably mounted on the side wall of the limiting ring plate through the limiting posts. A limiting spring is provided between the brake blocks and the receiving grooves. A pushing inclined surface is provided on the top edge of the brake block near the sealing plate. An inclined pressure groove is provided on the inner wall of the scoop diameter portion of the transverse component, which matches the pushing inclined surface of the brake blocks.

[0019] Preferably, the brake block is provided with a limiting groove at one end near the brake force-bearing component, and a limiting protrusion is provided on the outer wall of the brake force-bearing component, the limiting protrusion matching the limiting groove.

[0020] Preferably, the air-generating structure includes fan blades disposed on the outer wall of the upper part of the rotating connector, and the plurality of fan blades are distributed in a circumferential array. The vertical section of the air guide ring plate of the housing is provided with a plurality of air holes, and a filter screen is disposed in the air holes.

[0021] The beneficial effects of this invention are as follows:

[0022] 1. By setting up an outer shell structure consisting of a housing, a sealing plate, a limiting ring plate, and multiple limiting studs, and folding the end of the housing away from the sealing plate inward to form an L-shaped air guide ring plate, the L-shaped air guide ring plate guides external cold air into the device in an orderly manner, providing a good airflow organization basis for self-driven air cooling. The resulting technical effect is: to achieve a compact and thin design of the brake, meeting the dual requirements of precision equipment for installation space and heat dissipation performance.

[0023] 2. By setting a first braking structure consisting of a brake pad on the head of the brake actuator and a brake ramp on the inner periphery of the brake force-bearing component, and a second braking structure consisting of a brake block pushed by a slanted pressure groove to engage a limiting groove with a limiting protrusion ring, and by configuring a compression spring and a limiting spring, two-stage braking locking is achieved in the power-off state. In the power-off state, the compression spring pushes the brake actuator to make the brake pad contact the brake ramp, while the slanted pressure groove pushes the brake block against the brake force-bearing component, forming two independent braking locking stages. Even if one stage fails, the other stage can still maintain the braking function, which greatly improves the safety, reliability and failure resistance of the brake. It is particularly suitable for precision equipment with extremely high safety requirements. The technical effect is: to achieve power-off self-locking and two-stage redundant braking of the non-excitation brake.

[0024] 3. A self-driven air-cooling system is constructed by setting up fan blades arranged in a circular array on the outer wall of the high-level part of the rotating connector, an annular air-generating chamber, a T-shaped diversion channel, a guide chamber, and an open chamber. Air vents with filters are installed in the vertical section of the guide ring plate. When the equipment is running, the rotating connector drives the fan blades to rotate synchronously, generating high-pressure airflow that is directed through the T-shaped diversion channel to the guide groove area and the braking force-bearing components and brake block area, rapidly removing heat generated by the bearings, the rotating connector body, and braking friction. This design eliminates the need for additional cooling fans and drive power supplies, solving the problem of accelerated brake pad wear and brake performance degradation caused by frictional heat accumulation in the brake under high-frequency start-stop conditions. It significantly extends the service life of the brake and ensures long-term reliable operation of the equipment in high-frequency start-stop environments. The resulting technical effect is: achieving a passive heat dissipation design that utilizes the equipment's own rotational power to drive the fan blades for forced air cooling. Attached Figure Description

[0025] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a structural diagram of the installation of the casing and sealing plate in this invention;

[0028] Figure 3 This is a cross-sectional view of the present invention;

[0029] Figure 4 This is a cross-sectional view of the housing and the limiting ring plate in this invention;

[0030] Figure 5 In this invention Figure 4 Enlarged view of the structure at point A in the diagram;

[0031] Figure 6 This is a diagram showing the installation structure of the limiting ring plate in this invention;

[0032] Figure 7 This is a diagram showing the installation structure of the second braking structure in this invention;

[0033] Figure 8 This is an exploded view of the magnetic suction assembly, sealing plate, and transverse sliding component in this invention;

[0034] Figure 9 This is a cross-sectional view of the transverse sliding component in this invention;

[0035] Figure 10 This is a cross-sectional view of the rotary connector and the braking force-bearing component in this invention;

[0036] Figure 11 This is an exploded view of the rotary connector and braking force-bearing component in this invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Housing; 101. Mounting hole; 2. Limiting ring plate; 201. Windshield convex ring; 202. Receiving groove; 203. Diverting channel; 3. Sealing plate; 301. Air outlet; 4. Limiting stud; 5. Lateral movement component; 501. Brake pad; 502. Inclined pressure groove; 6. Compression spring; 7. Rotary connector; 701. Guide groove; 702. Bearing; 8. Braking force-bearing component; 801. Limiting convex ring;

[0039] 11. Magnetic yoke assembly; 12. Armature;

[0040] 21. Brake block; 22. Limiting groove; 23. Limiting post; 24. Limiting spring;

[0041] 31. Fan blades. Detailed Implementation

[0042] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, the specific implementation methods, structures, features, and effects of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this application, it should be understood that the orientation or positional relationship indicated by terms such as "inner" and "outer" are based on the orientation or position shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation, and therefore should not be construed as a limitation of this application.

[0044] Example 1:

[0045] Reference Figures 1-11 The present invention discloses an ultra-thin non-excitation brake for precision equipment, comprising:

[0046] To achieve the enclosure and basic support of the brake housing, in this embodiment: a housing 1 and a sealing plate 3, the end of the housing 1 away from the sealing plate 3 is folded inward to form an L-shaped air guide ring plate, the vertical section of the air guide ring plate of the housing 1 is provided with multiple mounting holes 101 for auxiliary fixing of the non-excitation brake, the inner circumference of the housing 1 is provided with an integrally set limiting ring plate 2, the side of the limiting ring plate 2 near the air guide ring plate is provided with a windproof protrusion ring 201, multiple limiting studs 4 are provided between the limiting ring plate 2 and the sealing plate 3 for fixing the housing 1 and the sealing plate 3, and the side wall of the sealing plate 3 is provided with multiple air outlet holes 301;

[0047] To achieve sliding installation and elastic reset of the braking actuator, in this embodiment: a transverse component 5 is slidably installed between the limiting ring plate 2 and the sealing plate 3 via a limiting stud 4. The axial cross-section of the transverse component 5 is spoon-shaped, including a handle, a diameter, and a head. The handle of the transverse component 5 is through-slidably connected to the limiting stud 4. Multiple compression springs 6 are provided between the sealing plate 3 and the transverse component 5. The compression springs 6 are sleeved with adjacent limiting studs 4. A rotary connector 7 is rotatably installed inside the housing 1. The inner diameter of the windshield convex ring 201 is larger than the inner diameter of the limiting ring plate 2. The end of the windshield convex ring 201 abuts against the rotary connector 7 through a wear-resistant coating. The axial cross section of the device 7 is stepped, forming a high-step section, a middle-step section and a low-step section in sequence. The inner peripheral wall of the rotating connector 7 is provided with an installation groove. A bearing 702 is provided between the outer peripheral wall of the middle-step section of the rotating connector 7 and the windproof convex ring 201. The inner diameter of the limiting ring plate 2 is larger than the outer diameter of the middle-step section of the rotating connector 7. Multiple guide grooves 701 are provided on the outer walls of the low-step section and the middle-step section of the rotating connector 7. A braking force-bearing component 8 is fixedly sleeved on the low-step section of the rotating connector 7. The braking force-bearing component 8 is partially fitted with the inner peripheral wall of the limiting ring plate 2 and forms a rotating connection. The braking force-bearing component 8 is constructed as a cylindrical component, and braking inclined surfaces are formed on the inner and outer peripheral edges of one end of the component, respectively.

[0048] In order to achieve electromagnetic drive of the transverse component 5, in this embodiment: a magnetic attraction assembly is set inside the housing 1 to drive the transverse component 5 to move transversely against the elastic force of the compression spring 6. The magnetic attraction assembly includes a magnetic yoke assembly 11 and an armature 12. The magnetic yoke assembly 11 is fixedly installed on the side of the sealing plate 3 near the housing 1, and the armature 12 is installed on the side wall of the transverse component 5 and matches the magnetic yoke assembly 11.

[0049] In order to achieve the first-level braking, in this embodiment: a first braking structure is provided on the side wall of the transverse member 5. The first braking structure includes two brake pads 501 which are correspondingly provided on the two opposing inner walls of the head of the transverse member 5, respectively matching the two braking inclined surfaces of the braking force receiving member 8.

[0050] To achieve the second-level braking and linkage unlocking, in this embodiment: a second braking structure is set on the side of the limiting ring plate 2 near the sealing plate 3 and slides radially along the limiting ring plate 2. The second braking structure includes multiple braking blocks 21 that match the outer circumferential wall of the braking force-bearing component 8. Multiple receiving grooves 202 are provided on the side of the limiting ring plate 2 near the sealing plate 3. Limiting posts 23 are provided radially along the limiting ring plate 2 in the receiving grooves 202. The braking blocks 21 are slidably installed on the side wall of the limiting ring plate 2 through the limiting posts 23. A limiting spring 24 is provided between the braking blocks 21 and the receiving grooves 202. A limiting groove 22 is provided at the end of the braking blocks 21 near the braking force-bearing component 8. A limiting protruding ring 801 is provided on the outer wall of the braking force-bearing component 8. The limiting protruding ring 801 matches the limiting groove 22. A pushing inclined surface is provided on the top edge of the side of the braking blocks 21 near the sealing plate 3. An inclined pressing groove 502 is provided on the inner wall of the scoop diameter of the transverse component 5, which matches the pushing inclined surface of the braking blocks 21.

[0051] To achieve air cooling and airflow guidance, in this embodiment: an air-generating structure is formed between the housing 1, the limiting ring plate 2, and the rotating connector 7 to form an annular air-generating cavity; the rotating connector 7, the braking force-bearing component 8, the limiting ring plate 2, and the windproof protrusion 201 form an air-guiding cavity; the transverse component 5, the braking force-bearing component 8, the limiting ring plate 2, and the housing 1 form an open cavity; a diversion channel 203 is provided on the side wall of the limiting ring plate 2, which is T-shaped and used to connect the annular air-generating cavity, the air-guiding cavity, and the open cavity; the air-generating structure is set inside the annular air-generating cavity; the air-generating structure includes fan blades 31, which are set on the outer wall of the high-level part of the rotating connector 7; multiple fan blades 31 are arranged in a circumferential array; the vertical section of the air-guiding ring plate of the housing 1 is provided with multiple air holes, and a filter screen is provided inside the air holes.

[0052] The working principle and usage process of this invention are as follows: In the initial state, the compression spring 6 pushes the transverse member 5 to keep the brake pad 501 in contact with the brake inclined surface of the brake force receiving member 8. At the same time, the inclined pressure groove 502 contacts and pushes the pushing inclined surface, pushing the brake block 21 to slide towards the brake force receiving member 8, so that the limiting groove 22 and the limiting convex ring 801 are engaged, forming a two-stage braking lock, and the brake is in the braking state. When the brake needs to be released, the magnetic yoke assembly 11 is energized to generate an electromagnetic force that attracts the armature 12, causing the transverse component 5 to move laterally towards the sealing plate 3 against the elastic force of the compression spring 6. The movement of the transverse component 5 causes the brake pad 501 on its spoon head to disengage from the braking inclined surface of the braking force-bearing component 8, thus releasing the first stage of braking. At the same time, the inclined pressure groove 502 on the inner wall of the spoon diameter of the transverse component 5 disengages from the pushing inclined surface of the top edge of the brake block 21. Under the action of the limiting spring 24, the brake block 21 slides radially away from the braking force-bearing component 8, causing the limiting groove 22 to disengage from the limiting protrusion 801, thus releasing the second stage of braking. When the magnetic yoke assembly 11 is de-energized, the compression spring 6 pushes the transverse component 5 to reverse and reset, and the brake pad 501 re-engages with the brake inclined surface of the brake force-bearing component 8, restoring the first-stage braking. At the same time, the inclined pressure groove 502 re-engages with the pushing inclined surface and pushes, pushing the brake block 21 to overcome the elastic force of the limiting spring 24 and slide towards the brake force-bearing component 8, so that the limiting groove 22 re-engages with the limiting protrusion 801, restoring the second-stage braking lock.

[0053] In high-frequency start-stop applications, the brakes frequently engage and disengage, generating significant frictional heat between the brake pads 501 and the brake force-bearing component 8, as well as between the limiting groove 22 and the limiting protrusion ring 801. To dissipate this heat promptly, the device integrates a self-driven air-cooling system: the rotary connector 7 rotates continuously during operation, causing the fan blades 31, arranged in a circular array on the outer wall of its high-level section, to rotate synchronously. The fan blades 31 generate high-pressure airflow within the annular air-generating chamber. This airflow is then split through the T-shaped diversion channel 203. One portion enters the air guide chamber and flows through the guide grooves 701 on the outer walls of the low- and middle-level sections of the rotary connector 7, dissipating heat from the bearing 702 and the main body of the rotary connector 7. The other portion enters the open chamber and flows through the area of ​​the brake force-bearing component 8 and the brake block 21, rapidly carrying away the heat generated by braking friction. The airflow is finally discharged from the air outlet 301 on the side wall of the sealing plate 3. The L-shaped air guide ring plate of the housing 1 guides external cold air in, and the filter screen inside the air holes of the L-shaped air guide ring plate prevents external impurities from entering, forming a complete air-cooling circulation loop. The cooling system utilizes the equipment's own rotational power to drive the fan blades 31, eliminating the need for an additional power source. This ensures that the brake remains at a suitable operating temperature during high-frequency start-stop conditions, preventing overheating that could lead to increased wear on the brake pads 501 or reduced braking performance. This extends the lifespan of the brake and ensures the reliability of the equipment's operation.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An ultra-thin non-excitation brake for precision equipment, characterized in that, include: The casing and the sealing plate are provided. The end of the casing away from the sealing plate is folded inward to form an L-shaped air guide ring. An integrally formed limiting ring plate is provided on the inner circumference of the casing. A windproof protrusion is provided on the side of the limiting ring plate near the air guide ring plate. Multiple limiting studs are provided between the limiting ring plate and the sealing plate. Multiple air outlets are provided on the side wall of the sealing plate. A transverse sliding member is slidably installed between the limiting ring plate and the sealing plate through the limiting studs. Multiple compression springs are provided between the sealing plate and the transverse sliding member. The compression spring is sleeved with the adjacent limiting stud. A rotating connector is rotatably installed inside the housing. The axial cross section of the rotating connector is stepped, forming a high-step section, a middle-step section, and a low-step section in sequence. The outer walls of the low-step section and the middle-step section of the rotating connector are provided with multiple guide grooves. A braking force-bearing component is fixedly sleeved on the low-step section of the rotating connector. The braking force-bearing component is constructed as a circular tube, and braking inclined surfaces are formed on the inner and outer peripheries of one end of the component, respectively. The magnetic attraction component, located inside the housing, is used to drive the lateral movement component to move laterally against the spring force of the compression spring; The first braking structure is located on the side wall of the transverse component; The second braking structure is located on the side of the limiting ring plate near the sealing plate and slides radially along the limiting ring plate; The air-generating structure is provided in a ring-shaped air-generating cavity formed between the housing, the limiting ring plate, and the rotating connector.

2. The ultra-thin non-excitation brake for precision equipment according to claim 1, characterized in that, The vertical section of the air guide ring plate of the casing is provided with multiple mounting holes for assisting in fixing the non-excitation brake.

3. The ultra-thin non-excitation brake for precision equipment according to claim 1, characterized in that, The axial cross-section of the transverse component is spoon-shaped, including a handle, a diameter, and a head. The handle of the transverse component is slidably connected to the limiting stud.

4. The ultra-thin non-excitation brake for precision equipment according to claim 1, characterized in that, The inner diameter of the windshield convex ring is larger than the inner diameter of the limiting ring plate. The end of the windshield convex ring abuts against the rotary connector through a wear-resistant coating. The inner peripheral wall of the rotary connector is provided with an installation groove. A bearing is provided between the outer peripheral wall of the middle step of the rotary connector and the windshield convex ring. The inner diameter of the limiting ring plate is larger than the outer diameter of the middle step of the rotary connector.

5. The ultra-thin non-excitation brake for precision equipment according to claim 1, characterized in that, The braking force-bearing component is partially fitted with the inner peripheral wall of the limiting ring plate and forms a rotatable connection. The rotatable connector, braking force-bearing component, limiting ring plate and windproof convex ring form an air guide cavity. The transverse component, braking force-bearing component, limiting ring plate and sleeve form an open cavity. The side wall of the limiting ring plate is provided with a diversion channel. The diversion channel is T-shaped and is used to connect the ring-shaped air-bearing cavity, the air guide cavity and the open cavity.

6. The ultra-thin non-excitation brake for precision equipment according to claim 1, characterized in that, The magnetic attraction assembly includes a magnetic yoke assembly and an armature. The magnetic yoke assembly is fixedly installed on the side of the sealing plate near the housing, and the armature is installed on the side wall of the transverse component and matches the magnetic yoke assembly.

7. The ultra-thin non-excitation brake for precision equipment according to claim 3, characterized in that, The first braking structure includes two brake pads correspondingly disposed on the two opposing inner walls of the scoop head of the transverse member, respectively matching the two braking inclined surfaces of the braking force-bearing member.

8. The ultra-thin non-excitation brake for precision equipment according to claim 3, characterized in that, The second braking structure includes multiple brake blocks that match the outer circumferential wall of the braking force-bearing component. The limiting ring plate has multiple receiving grooves on the side near the sealing plate. Limiting posts are provided radially along the limiting ring plate in the receiving grooves. The brake blocks are slidably mounted on the side wall of the limiting ring plate through the limiting posts. A limiting spring is provided between the brake blocks and the receiving grooves. A pushing slope is provided on the top edge of the brake block near the sealing plate. An inclined groove is provided on the inner wall of the scoop diameter portion of the transverse component, which matches the pushing slope of the brake blocks.

9. The ultra-thin non-excitation brake for precision equipment according to claim 8, characterized in that, The brake block is provided with a limiting groove at one end near the brake force-bearing component, and a limiting protrusion is provided on the outer wall of the brake force-bearing component, with the limiting protrusion matching the limiting groove.

10. The ultra-thin non-excitation brake for precision equipment according to claim 1, characterized in that, The air-generating structure includes fan blades, which are disposed on the outer wall of the upper part of the rotating connector. Multiple fan blades are arranged in a circumferential array. The vertical section of the air guide ring plate of the housing is provided with multiple air holes, and a filter screen is disposed inside the air holes.

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