High-sealing type electromagnetic safety brake with hand wheel release mechanism

Abstract

The utility model discloses a high-sealing type electromagnetic safety brake with a hand wheel release mechanism, which relates to the technical field of electromagnetic safety brakes and comprises a flange and a manual release mechanism arranged on one side of the flange and used for manually operating and releasing the brake. The manual release mechanism comprises a hand wheel body, the high-sealing type electromagnetic safety brake with the hand wheel release mechanism is provided with the hand wheel release mechanism, the hand wheel release mechanism can enable operation to be easier and more labor-saving, and especially in a large electromagnetic safety brake, due to the fact that spring force is large, a common manual release mechanism is too large in operation force and difficult to operate, and the manual release mechanism is not easy to operate. By means of the design, the problem can be solved, extra stability and controllability can be provided through the fixing assembly, operation of the hand wheel body is more accurate and reliable, meanwhile, extra safety guarantee can be provided through the fixing assembly, and it is ensured that the hand wheel cannot rotate accidentally under the emergency situation.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic safety brakes, in particular to a high-sealing electromagnetic safety brake with a handwheel release mechanism. Background Art

[0002] Manual brake release mechanisms come in two configurations: self-locking and self-resetting. The advantage of the self-locking mechanism is ease of maintenance and commissioning. However, its disadvantage is that forgetting to reset it can cause brake failure, posing a safety hazard. Therefore, it is rarely used in lifting equipment. The self-resetting mechanism, on the other hand, generally prevents brake failure due to its self-resetting function. However, during maintenance or commissioning, one person must hold the handle while another performs the work, which is inconvenient. Traditional large electromagnetic safety brakes have a large spring force, so conventional manual release mechanisms require too much force and are difficult to operate. Therefore, large electromagnetic safety brakes generally do not have manual release mechanisms.

[0003] Publication number CN206860722U discloses a large electromagnetic safety brake with a manual release mechanism. The manual release mechanism includes a release bolt, a pressure block, a crankshaft, an elbow arm A, an elbow arm B, a crossbeam, an axle, a handwheel, and a microswitch. The axle is mounted within a fixed block, which is mounted on a stator. The handwheel is mounted on the upper end of the axle, which is threadedly connected to the crossbeam. A microswitch is located above the crossbeam and fixed to the stator. An elbow arm B is located at each end of the crossbeam. The input end of elbow arm B is rotatably connected to the end of the crossbeam, and the output end of elbow arm B is connected to the input end of elbow arm A via a pin. The output end of elbow arm A is vertically fixed to the crankshaft. A slot is provided on the side of the crankshaft away from the stator, and the pressure block is located within the slot. The release bolt passes through the stator to connect the pressure block and the armature. The pressure block has a free travel of 4-5 mm. This utility model features easy, labor-saving, and convenient operation.

[0004] As shown in the above-mentioned device, the electromagnetic safety brake of the prior art is easy, labor-saving and convenient to operate, but lacks a fixed structure of the handwheel. If the handwheel moves accidentally during operation, it will not only affect the braking effect, but also increase the risk of operation. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a highly sealed electromagnetic safety brake with a handwheel release mechanism, which solves the problems of the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a highly sealed electromagnetic safety brake with a handwheel release mechanism, comprising a flange, and further comprising:

[0007] A manual release mechanism, which is provided on one side of the flange and is used for manually operating and releasing the brake;

[0008] The manual release mechanism includes a handwheel body, which is arranged on one side of the flange, the bottom end of the handwheel body is threadedly connected to the wheel axle, the bottom end of the wheel axle is rotatably connected to the crossbeam, the outer wall of the crossbeam is provided with a fixing component, the outer wall of the wheel axle is threadedly connected to the elbow arm, one end of the elbow arm is hinged to the handle shaft, the other end of the handle shaft is hinged to the pressure block, and the outer wall of the pressure block is threadedly connected to the handle bolt.

[0009] Preferably, the fixing assembly includes a mounting seat, which is arranged above the pressure block, the top of the mounting seat is fixedly connected to a threaded barrel, a movable soft plate is provided inside the mounting seat, the bottom end of the movable soft plate is fixedly connected to a connecting ring, the connecting ring is fixedly connected to the inside of the mounting seat, a circular groove is provided on the outer wall of the mounting seat, and the mounting seat is threadedly connected to a rotation auxiliary assembly through a threaded barrel.

[0010] Preferably, the rotation auxiliary component includes a threaded sleeve, which is threadedly connected to one end of the threaded barrel, and the top of the threaded sleeve is fixedly connected to a rotating plate, and the outer wall of the rotating plate is provided with a rod entry groove, and the outer wall of the rotating plate is fixedly connected to a pressure rod, and one end of the pressure rod is fixedly connected to a pressure wrench.

[0011] Preferably, a shaft sleeve is provided at one end of the flange, the shaft sleeve is connected to the rotor via a spline, an armature is provided at one end of the rotor, and one end of the armature is fixedly connected to a spring.

[0012] Preferably, a spacer is fixedly connected to the outer wall of the shaft sleeve, and a stator body is provided on one side of the spacer.

[0013] Preferably, a stator coil is wound inside the stator body for generating a magnetic field in conjunction with the stator body when energized.

[0014] The utility model provides a highly sealed electromagnetic safety brake with a handwheel release mechanism. Compared with the prior art, it has the following advantages:

[0015] 1. The high-sealed electromagnetic safety brake with a handwheel release mechanism is equipped with a handwheel release mechanism. The handwheel release mechanism can make operation easier and more labor-saving, especially in large electromagnetic safety brakes. Due to the large spring force, the ordinary manual release mechanism has too much operating force and is difficult to operate. This design can solve this problem. The fixing component can provide additional stability and control, making the operation of the handwheel body more precise and reliable. At the same time, the fixing component can provide additional safety protection to ensure that the handwheel will not rotate accidentally in an emergency.

[0016] 2. The highly sealed electromagnetic safety brake with a handwheel release mechanism is provided with a rotation auxiliary component. By using the rotation auxiliary component with a force unloading structure in conjunction with the fixing component, the handwheel body and the wheel shaft can be easily and firmly fixed to prevent the handwheel body from rotating due to external forces, thereby increasing the accuracy and reliability of the handwheel body operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the handwheel release mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the fixing assembly of the present utility model;

[0020] Figure 4 This is a schematic diagram of the rotation auxiliary component of the present invention.

[0021] In the figure: 1. flange; 2. rotor; 3. spring; 4. armature; 5. stator coil; 6. stator body; 7. manual release mechanism; 71. handwheel body; 72. crossbeam; 73. fixing assembly; 731. mounting seat; 732. threaded barrel; 733. movable soft plate; 734. connecting ring; 735. circular groove; 736. rotation auxiliary assembly; 7361. rotating plate; 7362. threaded sleeve; 7363. rod slot; 7364. pressure rod; 7365. pressure wrench; 74. elbow arm; 75. handle shaft; 76. pressure block; 77. handle bolt; 78. wheel axle; 8. bushing; 9. spacer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See Figure 1-Figure 4 , the utility model provides the following two technical solutions:

[0024] First embodiment: A highly sealed electromagnetic safety brake with a handwheel release mechanism, comprising a flange 1, and further comprising:

[0025] A manual release mechanism 7 is provided on one side of the flange 1 and is used for manually releasing the brake;

[0026] A shaft sleeve 8 is provided at one end of the flange 1 , and the shaft sleeve 8 is connected to the rotor 2 via a spline. An armature 4 is provided at one end of the rotor 2 , and a spring 3 is fixedly connected to one end of the armature 4 .

[0027] The outer wall of the shaft sleeve 8 is fixedly connected with a spacer sleeve 9 , and the stator body 6 is provided on one side of the spacer sleeve 9 .

[0028] The stator body 6 is wound with a stator coil 5 for generating a magnetic field in conjunction with the stator body 6 when power is supplied.

[0029] The manual release mechanism 7 includes a handwheel body 71, which is arranged on one side of the flange 1. The bottom end of the handwheel body 71 is threadedly connected to a wheel shaft 78, and the bottom end of the wheel shaft 78 is rotatably connected to a crossbeam 72. The outer wall of the crossbeam 72 is provided with a fixing component 73, and the outer wall of the wheel shaft 78 is threadedly connected to an elbow arm 74, one end of the elbow arm 74 is hinged to a handle shaft 75, and the other end of the handle shaft 75 is hinged to a pressure block 76, and the outer wall of the pressure block 76 is threadedly connected to a handle bolt 77.

[0030] The fixing assembly 73 includes a mounting seat 731, which is arranged above the pressure block 76. The top of the mounting seat 731 is fixedly connected to a threaded barrel 732. A movable soft plate 733 is provided inside the mounting seat 731. The bottom end of the movable soft plate 733 is fixedly connected to a connecting ring 734. The connecting ring 734 is fixedly connected to the inside of the mounting seat 731. A circular groove 735 is provided on the outer wall of the mounting seat 731. The mounting seat 731 is threadedly connected to a rotation auxiliary assembly 736 through the threaded barrel 732.

[0031] The high-sealed electromagnetic safety brake with a handwheel release mechanism is provided with a handwheel release mechanism, which can make operation easier and more labor-saving, especially in large electromagnetic safety brakes. Since the spring 3 has a large force, the ordinary manual release mechanism 7 has too large an operating force and is difficult to operate. This design can solve this problem, and the fixing component 73 can provide additional stability and controllability, making the operation of the handwheel body 71 more precise and reliable. At the same time, the fixing component 73 can provide additional safety protection to ensure that the handwheel will not rotate accidentally in an emergency.

[0032] The second embodiment differs from the first embodiment mainly in that:

[0033] The rotation auxiliary component 736 includes a threaded sleeve 7362, which is threadedly connected to one end of the threaded barrel 732. The top of the threaded sleeve 7362 is fixedly connected to a rotating plate 7361. The outer wall of the rotating plate 7361 is provided with a rod entry groove 7363. The outer wall of the rotating plate 7361 is fixedly connected to a pressure rod 7364. One end of the pressure rod 7364 is fixedly connected to a pressure wrench 7365.

[0034] The high-sealed electromagnetic safety brake with a handwheel release mechanism is provided with a rotation auxiliary component 736. By using the rotation auxiliary component 736 with a force unloading structure in conjunction with the fixing component 73, the handwheel body 71 and the wheel shaft 78 can be easily and firmly fixed to prevent the handwheel body 71 from rotating due to external forces, thereby increasing the accuracy and reliability of the operation of the handwheel body 71.

[0035] At the same time, the contents not described in detail in this specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0036] When the equipment is in use, during power-off braking, the rotor 2, which is splined on the sleeve 8, is pressed against the flange 1 by the spring 3 through the armature 4, thereby generating a braking torque and creating an air gap between the armature 4 and the stator body 6. When the brake is released, a direct current is passed through the stator coil 5. The generated magnetic field causes the armature 4 to compress the spring 3, which is then attracted by the stator body 6. At this time, the rotor 2 is released and the brake is released.

[0037] When manual release is needed, first turn the pressure wrench 7365 to drive the rotating plate 7361 at the other end of the pressure rod 7364 to rotate, and then drive the threaded sleeve 7362 to rotate. The threaded sleeve 7362 gradually rotates and leaves the threaded cylinder 732. As the threaded sleeve 7362 gradually leaves the threaded cylinder 732, the squeezed movable soft plate 733 will continuously loosen the crossbeam 72. When the crossbeam 72 is completely loosened, the handwheel body 71 is rotated counterclockwise when viewed from top to bottom, and the wheel shaft 78 drives the crossbeam 72 to move forward. The elbow arm 74 drives the handle shaft 75 to rotate. The semicircular structure of the handle shaft 75 causes the pressure block 76 to lift, and the pressure block 76 drives the handle bolt 77 to pull the armature 4, thereby achieving the effect of manual release. When manual release is released, the handwheel body 71 is rotated clockwise when viewed from top to bottom, and the wheel shaft 78 drives the cross beam 72 to move backward. The elbow arm 74 drives the handle shaft 75 to rotate. The semicircular structure of the handle shaft 75 causes the pressure block 76 to fall, and the pressure block 76 drives the handle bolt 77 to loosen the armature 4, thereby achieving the effect of manual release. Then, by rotating the pressure wrench 7365 in the opposite direction, the rotating plate 7361 at the other end of the pressure rod 7364 is driven to rotate, and then the threaded sleeve 7362 is driven to rotate. The threaded sleeve 7362 gradually rotates and enters the threaded barrel 732. As the threaded sleeve 7362 gradually enters the threaded barrel 732, it squeezes the movable soft plate 733 and clamps the cross beam 72. The two movable soft plates 733 are continuously squeezed, and the cross beam 72 can be clamped and fixed to prevent the rotation of the handwheel body 71 and the cross beam 72 caused by force.

[0038] O-rings are used to seal the flange 1 and the spacer 9, the spacer 9 and the stator body 6, and the handle bolt 77 and the pressure block 76. The mounting screws are outside the seals, and the shaft hole is protected by an oil seal.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly sealed electromagnetic safety brake with a handwheel release mechanism, comprising a flange (1), characterized in that: Also includes: A manual release mechanism (7), the manual release mechanism (7) being arranged on one side of the flange (1) and being used for manually operating and releasing the brake; The manual release mechanism (7) comprises a handwheel body (71), the handwheel body (71) is arranged on one side of the flange (1), the bottom end of the handwheel body (71) is threadedly connected to a wheel shaft (78), the bottom end of the wheel shaft (78) is rotatably connected to a crossbeam (72), the outer wall of the crossbeam (72) is provided with a fixing assembly (73), the outer wall of the wheel shaft (78) is threadedly connected to an elbow arm (74), one end of the elbow arm (74) is hinged to a handle shaft (75), the other end of the handle shaft (75) is hinged to a pressure block (76), and the outer wall of the pressure block (76) is threadedly connected to a handle bolt (77).

2. A highly sealed electromagnetic safety brake with a handwheel release mechanism according to claim 1, characterized in that: The fixing assembly (73) includes a mounting seat (731), the mounting seat (731) is arranged above the pressing block (76), the top end of the mounting seat (731) is fixedly connected to a threaded barrel (732), a movable soft plate (733) is arranged inside the mounting seat (731), the bottom end of the movable soft plate (733) is fixedly connected to a connecting ring (734), the connecting ring (734) is fixedly connected to the inside of the mounting seat (731), a circular groove (735) is provided on the outer wall of the mounting seat (731), and the mounting seat (731) is threadedly connected to a rotation auxiliary assembly (736) through the threaded barrel (732).

3. A highly sealed electromagnetic safety brake with a handwheel release mechanism according to claim 2, characterized in that: The rotation auxiliary component (736) includes a threaded sleeve (7362), which is threadedly connected to one end of the threaded barrel (732), and the top of the threaded sleeve (7362) is fixedly connected to a rotating plate (7361), and the outer wall of the rotating plate (7361) is provided with a rod entry groove (7363), and the outer wall of the rotating plate (7361) is fixedly connected to a pressure rod (7364), and one end of the pressure rod (7364) is fixedly connected to a pressure wrench (7365).

4. The highly sealed electromagnetic safety brake with a handwheel release mechanism according to claim 1, characterized in that: A shaft sleeve (8) is provided at one end of the flange (1), and the shaft sleeve (8) is connected to a rotor (2) via a spline. An armature (4) is provided at one end of the rotor (2), and a spring (3) is fixedly connected to one end of the armature (4).

5. The highly sealed electromagnetic safety brake with a handwheel release mechanism according to claim 4, characterized in that: The outer wall of the shaft sleeve (8) is fixedly connected with a spacer sleeve (9), and a stator body (6) is provided on one side of the spacer sleeve (9).

6. A highly sealed electromagnetic safety brake with a handwheel release mechanism according to claim 5, characterized in that: The stator body (6) is internally wound with a stator coil (5) for generating a magnetic field in conjunction with the stator body (6) when electricity is supplied.

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