A safety mechanical inertia brake and a coupling having the same

Abstract

The present application discloses a safety mechanical inertia brake and a coupling with a mechanical inertia brake, including a transmission member, the transmission member including an active member and a driven member, the active member and the driven member are spirally meshed; a cam arm force amplification mechanism, the cam arm force amplification mechanism including a moving disk, a plurality of cam arms and a plurality of cam reset springs, wherein the moving disk is installed at the connection between the active member and the driven member, the plurality of cam arms are rotatably installed on the moving disk, and the plurality of cam reset springs are installed on the moving disk; and a brake assembly, the brake assembly including a top pressure plate, a plurality of lower pressure members and a dynamic brake disk, wherein the top pressure plate is installed on the active member, and the plurality of cam arms abut against the top pressure plate. Through the technical solution provided by the present invention, the present application has the effect of realizing the transmission of power and braking effect in the transmission system while ensuring the safety of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of a coupling, in particular to providing a safety inertia brake and a coupling with a mechanical inertia brake. Background Art

[0002] The coupling is a key part in mechanical transmission and electric transmission. It is mainly used to connect two shafts or shafts and rotating parts. They rotate together in the process of transmitting motion and power, and do not disengage under normal circumstances. Also known as a coupling, it is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. It is sometimes also used to connect shafts with other parts (such as gears, pulleys, etc.).

[0003] At present, the working principle of the coupling involves power transmission and displacement compensation. For example, in the power transmission system, the rotation of the prime mover drives the swing arm to rotate, and it is thrown outward under the action of centrifugal force. As the motor speed increases, the positive pressure of the friction block installed on the swing arm on the friction wheel increases, and the friction torque gradually increases and drives the load to operate. Under severe overload or stall conditions, the coupling can play an overload protection role.

[0004] Compared with ordinary couplings, the brake couplings on the market have a more complex structure due to the integrated braking function, which increases the difficulty of manufacturing and maintenance, and may also increase the cost. And because of the integrated braking mechanism and transmission mechanism, the brake coupling is often heavier and larger than ordinary couplings of the same specification, which reduces the safety of the equipment during use. Summary of the invention

[0005] An advantage of the present invention is that it provides a safety mechanical inertia brake, which has the effect of achieving power transmission and braking effect in a transmission system while ensuring the safety of the equipment.

[0006] To achieve at least one of the above advantages of the present invention, the present invention provides a safety mechanical inertia brake, comprising:

[0007] A transmission member, the transmission member comprising a driving member and a driven member, the driving member and the driven member being helically meshed;

[0008] A cam arm force amplification mechanism, the cam arm force amplification mechanism comprising a moving plate, a plurality of cam arms and a plurality of cam reset springs, wherein the moving plate is installed at the connection between the active member and the driven member, the plurality of cam arms are rotatably installed on the moving plate, and the plurality of cam reset springs are installed on the moving plate;

[0009] A brake assembly, the brake assembly comprises a top pressure plate, a plurality of lower pressure members and a dynamic brake disc, wherein the top pressure plate is mounted on the active member, a plurality of cam arms abut against the top pressure plate, the lower pressure member is mounted on the top pressure plate, the dynamic brake disc is mounted on the driven member, the dynamic brake disc is mounted on a side of the cam arm away from the top pressure plate, and the lower pressure member changes the rotation angle of the cam arm when moving, so as to achieve the abutment or separation of the cam arm and the dynamic brake disc; the lower pressure member comprises a guide rod and a brake spring, the guide rod is movably mounted on the top pressure plate, the brake spring is sleeved on the guide rod, the brake spring always pushes the guide rod to move toward the side close to the top pressure plate, and a stopper is arranged on the guide rod;

[0010] The brake assembly also includes a friction plate and a static brake disc, the friction plate is mounted on the driven member, the friction plate is mounted on a side of the dynamic brake disc away from the active member, the static brake disc is mounted on the driven member, and the static brake disc is mounted on a side of the friction plate away from the dynamic brake disc.

[0011] The static brake disc has a plurality of brake pads, the plurality of brake pads are detachably mounted on the driven member, and the plurality of brake pads are spliced ​​into a ring shape;

[0012] The safety mechanical inertia brake comprises a disassembly assembly, which is installed between the follower and the brake pad;

[0013] The disassembly assembly includes a buckle, a rotating shaft and at least one spring jumping bean, wherein the rotating shaft is installed on a side of the brake pad close to the follower, the buckle is rotatably installed on the rotating shaft, and the spring jumping bean is installed on a side of the buckle away from the rotating shaft.

[0014] Through the above technical solution, the static brake disc includes a plurality of brake pads, which are spliced ​​to form a ring. The safety mechanical inertia brake includes a disassembly assembly, which is installed between the follower and the brake pad. The disassembly assembly can remove the brake pad from the follower, which is convenient for operators to replace the brake pad. The disassembly assembly includes a buckle, a rotating shaft and at least one spring jumping bean, wherein the rotating shaft is installed on the side of the brake pad close to the follower, the buckle is rotatably installed on the rotating shaft, and the spring jumping bean is installed on the side of the buckle away from the rotating shaft. The buckle can rotate on the rotating shaft, the spring jumping bean is installed on the buckle, and the spring jumping bean can be extended and retracted on the buckle.

[0015] According to one embodiment of the present invention, the top pressure plate has an annular clearance groove, the annular clearance groove has an inclined sliding surface and an arc-shaped clamping surface, the inclined sliding surface is connected to the arc-shaped clamping surface, and the top end of the cam arm abuts against the arc-shaped clamping surface.

[0016] Through the above technical solution, the sliding groove and the clamping groove are vertically arranged, the buckle first passes through the sliding groove, and is fixed in the clamping groove after being rotated in a certain direction, and the spring jumping bean slides along the installation groove.

[0017] According to one embodiment of the present invention, the cam arm has a sliding portion, a lever portion and a braking portion, the sliding portion is connected to the lever portion, the braking portion is connected to an end of the lever portion away from the sliding portion, and the cross-section of the cam arm is J-shaped.

[0018] Through the above technical solution, the braking part is gradually separated from or fitted with the brake disc, and finally the torque transmission or braking effect is achieved.

[0019] According to one embodiment of the present invention, the disassembly assembly also includes a sliding groove, a clamping groove and at least one installation groove, the sliding groove and the clamping groove are both opened on the outer wall of the follower, the opening directions of the sliding groove and the clamping groove are perpendicular, the installation groove is opened in the clamping groove, the installation groove is adapted to the spring jumping bean, the brake pad has an abutment portion, the abutment portion has at least one step, and the steps of the abutment portions are in contact with each other when the two brake pads are installed, so that the brake pads are more stable when spliced.

[0020] Through the above technical solution, the abutting portion enables two adjacent brake pads to fit more closely, thereby ensuring the flatness of the surface.

[0021] According to an embodiment of the present invention, it comprises a support cylinder and the safety mechanical inertia brake, wherein the safety mechanical inertia brake is installed on the support cylinder.

[0022] Through the above technical solution, the coupling with brake, the safety mechanical inertia brake is integrated into the coupling and installed through the support tube. This design enables the coupling to not only have the function of power transmission, but also have reliable braking ability, thereby improving the safety and reliability of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The schematic diagram of the structure of the coupling with the braking device of the present invention is shown.

[0024] Figure 2 A schematic diagram of the internal structure of the hidden support cylinder of the coupling with a braking device according to the present invention is shown.

[0025] Figure 3An exploded schematic diagram of a disassembled assembly with a braking device according to the present invention is shown.

[0026] Figure 4 An exploded schematic diagram showing another perspective of the disassembly assembly with a braking device according to the present invention.

[0027] Figure 5 A cross-sectional view of a coupling with a braking device according to the present invention is shown.

[0028] Figure 6 Shows Figure 5 An enlarged schematic diagram of part A.

[0029] Figure 7 An exploded schematic diagram of a manual opening device of a coupling with a braking device according to the present invention is shown.

[0030] Description of reference numerals:

[0031] 10. Transmission member; 11. Active member; 12. Follower; 21. Moving plate; 22. Cam arm; 221. Sliding part; 222. Lever; 223. Braking part; 23. Cam reset spring; 30. Braking assembly; 31. Pressing plate; 311. Annular clearance groove; 3111. Inclined sliding surface; 3112. Arc-shaped clamping surface; 32. Guide rod; 33. Braking spring; 34. Moving brake disc; 35. Friction plate; 36. Static brake disc; 40. Support cylinder; 50. Manual opening device; 51. Knob block; 52. Rotating rod; 53. Adjusting block; 60. Active bearing seat; 70. Driven bearing seat; 80. Mounting base; 90. Overheat protection assembly; 91. Temperature sensor; 92. Control module; 93. Heat dissipation device; 94. Alarm device; 100. Disassembly assembly; 101. Buckle; 102. Rotating shaft; 103. Spring jumping beans. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0033] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0034] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0035] refer to Figures 1 to 7 A safety mechanical inertia brake according to a preferred embodiment of the present invention will be described in detail below. The safety mechanical inertia brake includes a transmission member 10, a cam arm force-enhancing mechanism and a brake assembly 30, wherein the transmission member 10 includes an active member 11 and a driven member 12, the active member 11 and the driven member 12 are spirally meshed, the cam arm force-enhancing mechanism is installed on the active member 11, and the brake assembly 30 includes a top pressure plate 31, a plurality of lower pressure members and a dynamic brake. Disc 34, wherein the top pressure plate 31 is installed on the active part 11, multiple cam arm force boosting mechanisms are in contact with the top pressure plate 31, the lower pressure piece is installed on the top pressure plate 31, the dynamic brake disc 34 is installed on the driven part 12, and the dynamic brake disc 34 is installed on the side of the cam arm force boosting mechanism away from the top pressure plate 31. When the lower pressure piece moves, it changes the rotation angle of the cam arm force boosting mechanism to achieve the contact or separation between the cam arm force boosting mechanism and the dynamic brake disc 34.

[0036] Specifically, the pressing member includes a guide rod 32 and a brake spring 33. The guide rod 32 is movably mounted on the top pressure plate 31, and the brake spring 33 is mounted on the guide rod 32. In the present embodiment, the brake spring 33 always pushes the guide rod 32 toward the side close to the top pressure plate 31.

[0037] Specifically, the pressure plate 31 is rotatably mounted on the active member 11, a plurality of guide rods 32 are equidistantly mounted on the pressure plate 31 and pass through the pressure plate 31, a plurality of brake springs 33 are sleeved on the guide rods 32, and one end of the plurality of brake springs 33 abuts against the pressure plate 31. In this way, when the guide rods 32 move in the pressure plate 31, the brake springs 33 are compressed, so that the brake springs 33 generate elastic force.

[0038] Furthermore, the brake assembly 30 also includes a static brake disc 36 and a friction plate 35, wherein the friction plate 35 is mounted on the driven member 12, and the friction plate 35 is mounted on the side of the dynamic brake disc 34 away from the active member 11, the static brake disc 36 is mounted on the driven member 12, and the static brake disc 36 is mounted on the side of the friction plate 35 away from the dynamic brake disc 34, that is, the friction plate 35 is mounted between the dynamic brake disc 34 and the static brake disc 36.

[0039] Specifically, it is worth mentioning that the stopper is provided on the guide rod 32. When the brake spring 33 is in a normal state, the stopper of the guide rod 32 is away from the dynamic brake disc 34 when the brake spring 33 is in a compressed state. When the brake spring 33 is not compressed, the stopper of the guide rod 32 is in contact with the dynamic brake disc 34. In this way, the movement displacement of the guide rod 32 can be limited to be maintained within a predetermined range, preventing the guide rod 32 from moving too far and causing damage to the coupling.

[0040] That is to say, when the dynamic brake disc 34 installed above the friction plate 35 moves toward the side close to the friction plate 35, one of the dynamic brake discs 34 squeezes the friction plate 35, and the friction plate 35 approaches the static brake disc 36 under the action of thrust, and the dynamic brake disc 34 and the static brake disc 36 squeeze the friction plate 35, thereby finally achieving a braking effect.

[0041] That is to say, in this embodiment, the friction plate 35 is not an annular plate, but a fan-shaped plate, so that better heat dissipation performance can be obtained. Because a large amount of heat is generated during the braking process, if the heat cannot be dissipated in time, the braking effect will be reduced, so good heat dissipation is very important for maintaining friction performance. In addition, the fan-shaped design makes the friction plate 35 wear more evenly during use, which can extend the service life of the friction plate 35.

[0042] Furthermore, the static brake disc 36 includes a plurality of brake pads, which are spliced ​​together to form the annular static brake disc 36 . A disassembly assembly 100 is installed between the static brake disc 36 and the follower 12 , and the disassembly assembly 100 can remove the brake pads from the follower 12 .

[0043] Specifically, the disassembly assembly 100 includes a buckle 101, a rotating shaft 102 and at least one spring jumping bean 103, wherein the rotating shaft 102 is installed on the side of the brake pad close to the follower 12, the buckle 101 is rotatably installed on the rotating shaft 102, and the spring jumping bean 103 is installed on the side of the buckle 101 away from the rotating shaft 102.

[0044] Furthermore, the disassembly component 100 also includes a sliding groove, a card slot and at least one installation groove, the sliding groove and the card slot are both opened on the outer wall of the follower 12, the opening directions of the sliding groove and the card slot are perpendicular, the installation groove is opened in the card slot, and the installation groove is adapted to the spring jumping bean 103.

[0045] It is worth mentioning that the cross-sectional shape of the mounting groove is a quarter circle. In the present embodiment, two spring jumping beans 103 are provided. When the buckle 101 rotates, the spring jumping beans 103 are driven to rotate, and the spring jumping beans 103 slide along the mounting groove. After sliding to a preset position, the spring jumping beans 103 are fixed, so that the current position of the buckle 101 is fixed. At this time, the brake pad is installed on the follower 12.

[0046] Furthermore, the brake pad has an abutment portion, and the abutment portion has at least one step. When the two brake pads are installed, the steps of the abutment portion fit each other, so that the brake pads are more stable when spliced. In this embodiment, the cross-section of the abutment portion of the brake pad is convex-shaped. When adjacent brake pads are installed and the steps of adjacent brake pads are spliced, the surface of the brake pad is flat, and no jamming occurs during the braking process, and the connection between adjacent brake pads can generate mutual thrust.

[0047] In this way, after braking for a period of time, the static brake disc 36 is worn or partially worn and needs to be replaced. The operator can save costs by replacing the brake pads.

[0048] It is worth mentioning that, in the present embodiment, the active member 11 is implemented as a connecting motor, and the driven member 12 is implemented as a reducer.

[0049] Specifically, the cam arm force-increasing mechanism includes a moving plate 21, a plurality of cam arms 22, and a plurality of cam reset springs 23, wherein the moving plate 21 is installed at the connection between the active member and the driven member, the plurality of cam arms 22 are equidistantly installed on the moving plate 21, and the other end of the cam arm 22 is connected to the top pressure plate 31, and the plurality of cam reset springs 23 are installed on the moving plate 21. The equidistant installation of the cam arms 22 and the cam reset springs 23, and the cooperation of the top pressure plate 31 and the brake disc 34 make the entire brake device compact in structure and occupy a small space.

[0050] Furthermore, the cam arm 22 has a sliding portion 221, a lever portion 222 and a braking portion 223, wherein the lever portion 222 is rotatably mounted on the movable disk 21, the sliding portion 221 has an arc surface, the arc surface abuts against the top pressure plate 31, the braking portion 223 abuts against the brake disk 34, and the cross-section of the cam arm 22 is J-shaped.

[0051] In this embodiment, a side of the top pressure plate 31 close to the cam arm 22 is provided with an annular clearance groove 311, and the annular clearance groove 311 has an inclined sliding surface 3111 and an arc-shaped clamping surface 3112. The inclination angle of the inclined sliding surface 3111 gradually increases from the side away from the active end 11 to the side close to the active end 11, and the arc-shaped clamping surface 3112 is connected to the inclined sliding surface 3111. The arc surface of the cam arm 22 can slide along the inclined sliding surface 3111 and finally slide into the arc-shaped clamping surface 3112.

[0052] When the lever portion 222 of the cam arm 22 rotates, the braking portion 223 is driven to rotate together, so that the height positions of the sliding portion 221 and the braking portion 223 tend to be in the same plane, or the height positions of the sliding portion 221 and the braking portion 223 have a certain height difference, so that the braking portion 223 gradually separates from or fits with the brake disc 34, and finally achieves the effect of transmitting torque or achieving braking.

[0053] In this way, when the brake spring 33 is compressed, the block of the guide rod 32 is separated from the brake disc 34, and the sliding portion 221 of the cam arm 22 slides along the inclined sliding surface 3111 of the pressure plate 31. At this time, the lever portion 222 of the cam arm 22 rotates, driving the brake portion 223 of the cam arm 22 to fit with the brake disc 34, thereby realizing the braking stop and deceleration of the coupling.

[0054] Furthermore, the cam reset spring piece 23 is arranged on the side of the lever portion 222 close to the cam arm 22, and the cam reset spring piece 23 has a swinging portion and an abutting portion. The swinging portion of the cam reset spring piece 23 is rotatably mounted on the movable disk 21, and the abutting portion is integrally formed with the swinging portion. In this embodiment, the swinging portion is in a vertical state when not affected by external force, and the cross-sectional shape of the abutting portion is semicircular, and the opening is close to the cam arm 22.

[0055] In this way, when the cam arm 22 moves toward the side close to the cam reset spring piece 23, the cam reset spring piece 23 is squeezed, so that the cam reset spring piece 23 is deformed, the swinging part is deformed, and the abutting part contacts and slides with the cam arm 22, which can reduce the friction. When the cam arm 22 is close to the cam reset spring piece 23, the cam reset spring piece 23 generates elastic force to give the cam arm 22 a certain thrust, so that the cam arm 22 abuts against the brake disc 34 to achieve the braking effect.

[0056] The coupling with mechanical inertia brake includes a support tube 40 and the safety mechanical inertia brake. The safety mechanical inertia brake is installed in the support tube 40, so that the coupling has a braking effect. The coupling can brake quickly and effectively when needed, thereby improving the control ability of shaft rotation.

[0057] Furthermore, the coupling with mechanical inertia brake also includes a manual opening device 50, which is installed in the support tube 40, and includes a knob block 51, a rotating rod 52 and an adjusting block 53, wherein the knob block 51 is rotatably installed in the support tube 40, the rotating rod 52 is connected to the knob block 51, and the rotating rod 52 passes through the support tube 40, and the adjusting block 53 is installed at one end of the rotating rod 52 away from the knob block 51. In this embodiment, the adjusting block 53 has two planes and two arc surfaces, and the adjusting block 53 is located below the top pressure plate 31. Through the manual opening device 50, the operator can adjust the braking force as needed, which provides a certain degree of flexibility and adaptability.

[0058] When the plane of the adjusting block 53 rotates to be parallel to the top pressure plate 31, the adjusting block 53 is not in contact with the top pressure plate 31; when the arc surface of the adjusting block 53 rotates to be close to the top pressure plate 31, the adjusting block 53 abuts against the top pressure plate 31. The adjusting block 53 can give a certain thrust to the top pressure plate 31, so that the top pressure plate 31 moves to the side away from the adjusting block 53.

[0059] The operator manually rotates the knob block 51, thereby driving the rotation of the rotating rod 52, and finally adjusting the angle and position of the adjusting block 53, so that the adjusting block 53 and the top pressure plate 31 are in a contact or non-contact state, and finally changing the position height of the top pressure plate 31. It is worth mentioning that when the plane of the adjusting block 53 rotates to the arc surface, the arc surface gradually contacts the top pressure plate 31, which can reduce friction, and as the curvature of the arc surface changes, the top pressure plate 31 gradually rises or falls, and can move more smoothly, thereby improving the safety of the coupling.

[0060] When the arc surface of the adjustment block 53 contacts the pressure plate 31, the height of the pressure plate 31 is increased, so that the cam arm 22 rotates to a position separated from the brake disc 34. At this time, the cam arm 22 is away from the brake disc 34, realizing the transmission function of the coupling.

[0061] Furthermore, the active member and the driven member mesh with each other, and both the active member and the driven member are provided with a helical meshing surface. When the active member rotates, the helical surface of the active member produces relative slip along the helical surface of the driven member in the direction of the helical lead angle, and a force is generated due to the action of the helical lead angle, pushing the active member or the driven member to move axially outward; when the active member stops rotating, the active member has no torque output, and the force generated by the helical meshing surface is released. Under the action of external force, the active member or the driven member moves inward and resets.

[0062] Furthermore, the coupling with mechanical inertia brake also includes an active bearing seat 60 and a driven bearing seat 70, wherein the active bearing seat 60 is mounted on the active part and the driven bearing seat 70 is mounted on the driven part, so as to ensure that the bearing can be correctly installed and maintained in the predetermined position, thereby realizing the normal operation of the machine equipment.

[0063] Furthermore, the coupling with mechanical inertia brake also includes a mounting base 80, which is mounted on the outside of the support tube 40. A plurality of mounting holes are provided on the mounting base 80 for fixing the coupling to a working position.

[0064] Furthermore, the coupling with mechanical inertia brake also includes an overheat protection component 90, which is installed inside the support cylinder 40. The overheat protection component 90 can ensure that the equipment can automatically shut down in abnormal situations to protect the safety of equipment and personnel.

[0065] Specifically, the overheating protection device 90 includes at least one temperature sensor 91, at least one control module 92, at least one heat dissipation device 93 and an alarm device 94. The temperature sensor 91 is installed on the inner wall of the support tube 40, the control module 92 is electrically connected to the temperature sensor 91, the heat dissipation device 93 is electrically connected to the control module 92, and the alarm device 94 is electrically connected to the control module 92. The alarm device 94 is installed on the outer wall of the support tube 40. In this embodiment, the alarm device 94 can be implemented as an indicator light or a buzzer.

[0066] Specifically, the control module 92 includes a comparator and a relay, and the comparator and the relay are electrically connected. The comparator is used to compare the signal of the temperature sensor 91 with a preset threshold value. When the temperature exceeds the threshold value, the relay will cut off the power supply or change the circuit state to prevent the device from being damaged by overheating.

[0067] That is, when the temperature value received by the temperature sensor 91 is greater than the predetermined temperature value, the temperature sensor sends a signal to the control module 92, the control module 92 receives and processes the signal, and then controls the heat dissipation device 93 to work. In this embodiment, the heat dissipation device 93 can be implemented as a heat dissipation fan, and the control module 92 sends the processed signal to the alarm device 94, and the alarm device 94 emits light or sound to warn the operator. These parts work together to achieve effective protection against overheating of the equipment.

[0068] Furthermore, the coupling with a mechanical inertia brake also includes a remote monitoring component, which includes at least one sensor, a data acquisition and processing component, and a monitoring component, wherein the sensor is installed at a predetermined position. In this embodiment, the sensor can be set as a temperature sensor, a vibration sensor, a displacement sensor, etc., to collect the operating state parameters of the coupling in real time. The data acquisition and processing component is communicatively connected to the sensor, and the monitoring component is connected to the data acquisition and processing component.

[0069] Specifically, the data acquisition and processing component converts the analog signals collected by the sensor into digital signals, performs preliminary data analysis and processing, and transmits the processed data to the cloud server or local data center using wired networks (such as Ethernet) or wireless network technologies (such as Wi-Fi, 4G / 5G, etc.).

[0070] Specifically, the monitoring component includes a display screen. In this embodiment, the display screen can be a computer display screen and / or a mobile phone display screen. The operator can access it through terminal devices such as computers, mobile phones or tablets to view the operating status, parameter curves, alarm information, etc. of the coupling in real time.

[0071] In summary, when the active member is connected to the driven member, the brake spring 33 is compressed, pushing the top pressure plate 31 to move, and the cam arm 22 rotates to fit the brake disc 34. The cam arm 22 and the brake disc 34 generate friction after contact, and the cam arm 22 gives the brake disc 34 a certain thrust, so that the brake disc 34 and the friction plate 35 fit more closely, generating greater friction to achieve the braking effect. At this time, the braking effect is achieved. When the brake spring 33 is not compressed, the cam arm 22 rotates to separate from the brake disc 34, and the coupling operates normally; and the operator can manually rotate the manual opening device 50 to achieve the manual braking effect. The design of this brake is intended to improve safety and reliability, and to achieve an effective braking function through a mechanical structure.

[0072] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A safety mechanical inertia brake, characterized in that: include: A transmission member, the transmission member comprising a driving member and a driven member, the driving member and the driven member being helically meshed; A cam arm force amplification mechanism, the cam arm force amplification mechanism comprising a moving plate, a plurality of cam arms and a plurality of cam reset springs, wherein the moving plate is installed at the connection between the active member and the driven member, the plurality of cam arms are rotatably installed on the moving plate, and the plurality of cam reset springs are installed on the moving plate; A brake assembly, the brake assembly comprises a top pressure plate, a plurality of lower pressure members and a dynamic brake disc, wherein the top pressure plate is mounted on the active member, a plurality of cam arms abut against the top pressure plate, the lower pressure member is mounted on the top pressure plate, the dynamic brake disc is mounted on the driven member, the dynamic brake disc is mounted on a side of the cam arm away from the top pressure plate, and the lower pressure member changes the rotation angle of the cam arm when moving, so as to achieve the abutment or separation of the cam arm and the dynamic brake disc; the lower pressure member comprises a guide rod and a brake spring, the guide rod is movably mounted on the top pressure plate, the brake spring is sleeved on the guide rod, the brake spring always pushes the guide rod to move toward the side close to the top pressure plate, and a stopper is arranged on the guide rod; The brake assembly further comprises a friction plate and a static brake disc, wherein the friction plate is mounted on the driven member, the friction plate is mounted on a side of the dynamic brake disc away from the driving member, the static brake disc is mounted on the driven member, and the static brake disc is mounted on a side of the friction plate away from the dynamic brake disc; The static brake disc has a plurality of brake pads, the plurality of brake pads are detachably mounted on the driven member, and the plurality of brake pads are spliced ​​into a ring shape; The safety mechanical inertia brake comprises a disassembly assembly, which is installed between the follower and the brake pad; The disassembly assembly includes a buckle, a rotating shaft and at least one spring jumping bean, wherein the rotating shaft is installed on a side of the brake pad close to the follower, the buckle is rotatably installed on the rotating shaft, and the spring jumping bean is installed on a side of the buckle away from the rotating shaft.

2. The safety mechanical inertia brake according to claim 1, characterized in that: The top pressure plate has an annular clearance groove, which has an inclined sliding surface and an arc-shaped clamping surface. The inclined sliding surface is connected to the arc-shaped clamping surface, and the top end of the cam arm abuts against the arc-shaped clamping surface.

3. The safety mechanical inertia brake according to claim 2, characterized in that: The cam arm has a sliding part, a lever part and a braking part. The sliding part is connected to the lever part, and the braking part is connected to an end of the lever part away from the sliding part. The cross section of the cam arm is J-shaped.

4. The safety mechanical inertia brake according to claim 1, characterized in that: The disassembly assembly also includes a sliding groove, a clamping groove and at least one installation groove, the sliding groove and the clamping groove are both opened on the outer wall of the follower, the opening directions of the sliding groove and the clamping groove are perpendicular, the installation groove is opened in the clamping groove, the installation groove is adapted to the spring jumping bean, the brake pad has an abutment portion, the abutment portion has at least one step, and the steps of the abutment portions are fitted together when the two brake pads are installed to make the brake pads more stable when spliced.

5. A coupling with a mechanical inertia brake, characterized in that: The invention comprises a supporting cylinder and the safety mechanical inertia brake according to any one of claims 1 to 4, wherein the safety mechanical inertia brake is mounted on the supporting cylinder.

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