CN110386567B - Brake device for electric hoist - Google Patents
Brake device for electric hoist Download PDFInfo
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- CN110386567B CN110386567B CN201910769394.XA CN201910769394A CN110386567B CN 110386567 B CN110386567 B CN 110386567B CN 201910769394 A CN201910769394 A CN 201910769394A CN 110386567 B CN110386567 B CN 110386567B
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- brake
- fixing base
- shaft
- connecting plates
- braking
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- 230000000149 penetrating effect Effects 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000008093 supporting effect Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 210000000078 claw Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/12—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect
- B66D5/14—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with axial effect embodying discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a brake device for an electric hoist, and belongs to the technical field of machinery. The brake device solves the problems that the existing brake device for the electric hoist cannot automatically adjust the brake clearance and the like. This brake equipment for electric block includes flange, the last guide pillar that has linked firmly of flange, the cover is equipped with brake disc on the guide pillar, the brake block, brake spring, the last fixing base that has linked firmly of flange, the support has been linked firmly on the fixing base, a ejector pin passes the support and the lower extreme of ejector pin passes the fixing base and the joint has the roof, fixing base middle part department threaded connection has the screw rod that runs through the fixing base, the screw rod lower extreme supplies the roof top to touch and the distance of roof inner to the screw rod is less than the distance of ejector pin joint department to the screw rod, the ejector pin cover is equipped with spring one and spring one provides elasticity in order to brake, be equipped with the actuating structure who releases the braking on the fixing base, still be equipped with on the fixing base and can compensate the clearance adjustment structure of braking clearance after the brake block wearing and tearing. The invention has the advantages of good braking effect, automatic adjustment of braking clearance and the like.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a brake device, in particular to a brake device for an electric hoist.
Background
The electric hoist is special hoisting equipment, is arranged on the crown block and the gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is applied to places such as industrial and mining enterprises, storage, wharfs and the like. The brake of the current electric hoist is arranged on one side of the lifting motor or is arranged in the lifting motor and is made into a whole with the lifting motor, and in the working process of the electric hoist with the structure, when the middle transmission link from the motor to the speed reducer fails, the brake of the steel wire rope winding drum is lost, so that a heavy object hung on the lifting hook falls down, and a safety accident is caused.
Aiming at the problems, a steel wire rope electric hoist is designed and applied for patent [ application number: 201320568286.4; authorized bulletin number: CN203474335U ], it includes the traversing trolley that makes the electric hoist move along the hanging rail, be equipped with the traversing trolley driving motor on the traversing trolley, be fixed with hoisting mechanism below the traversing trolley, hoisting mechanism includes the wire rope reel, twine on the wire rope reel and have the lifting wire rope, be equipped with lifting hook assembly and lifting hook on the lifting wire rope, be equipped with the hoisting motor at one end of wire rope reel, be equipped with reduction gear and stopper in proper order along the axial of wire rope reel at the other end of wire rope reel, the stopper is normally closed type electric disk brake, normally closed type electric disk brake includes the flange pedestal that fixes the stopper on the reduction gear casing, use the brake axle to set up at least three guide post as centre of a circle annular array on the flange pedestal, it can follow the brake spring of guide post removal to overlap in proper order on the guide post, the baffle, remove core, two annular brake disks, whole brake disk, still overlap on the guide post and be equipped with can with baffle, remove core, annular brake disk, whole brake disk, brake is pushed to the brake armature of brake side to the brake spring, be equipped with on the flange pedestal and brake electromagnet with brake, annular brake disk, be equipped with annular brake disk, annular brake disk and brake disk are equipped with on the brake disk.
The wire rope electric hoist can improve braking effect and improves safety in use through normally closed electric disk brake, when the circumstances of wearing and tearing appear in the friction disc, need manual regulation promptly through screwing in adjusting bolt, the braking nut on the fixed handle changes the brake distance, but manual regulation has the drawback that lacks timeliness and convenience, and during the brake clearance was adjusted moreover, can not make the brake clearance too little, can influence hoisting motor's work like this, even lead to hoisting motor to damage in advance, also can not make the brake clearance too big, too big can influence electric hoist output, lead to the coaster phenomenon to take place, have higher requirement to operator's professional quality.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides the braking device for the electric hoist, which has good braking effect and can automatically adjust the braking gap.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a brake equipment for electric block, includes flange, flange on link firmly the guide pillar of circumference equipartition, the guide pillar on the cover be equipped with a plurality of brake disc, between first brake disc and flange, all be equipped with the brake block that supplies the brake axle to link firmly between the adjacent brake disc, the guide pillar on the cover be equipped with the brake spring who supports in each brake disc, its characterized in that, flange on link firmly fixing base and brake disc be located between flange and the fixing base, the fixing base on link firmly the support, a ejector pin pass the lower extreme of support and ejector pin and pass fixing base and joint have the roof that is located between fixing base and the last brake disc, fixing base middle part department threaded connection have the screw rod that runs through the fixing base, the screw rod lower extreme supply the roof top to touch and the distance of roof inner to the screw rod be less than ejector pin joint department to the screw rod, the ejector pin cover be equipped with spring one and provide elasticity and make ejector pin lower extreme drive the roof on upwarp and contradict in last brake disc in order to brake, the fixing base on be equipped with and drive axial displacement in order to release the drive the brake block on the fixing base, the drive on the ejector pin and be equipped with and adjust the clearance and can also adjust the brake block after the brake block is equipped with the drive clearance.
In the brake device for the electric hoist, the driving structure comprises a driving piece and a connecting rod assembly, wherein the driving piece is fixedly connected to the fixing seat or the support, the connecting rod assembly is positioned between the driving piece and the ejector rod, and the driving piece drives the ejector rod to axially displace through the connecting rod assembly. The arrangement of the connecting rod assembly enables the structure to be compact and convenient to arrange, the transmission process is stable, and the failure rate is low.
In the brake device for the electric hoist, the connecting rod assembly comprises a first hinge shaft hinged to the bottom of the support, a first two connecting plates positioned in the support and positioned on two sides of the ejector rod are arranged on the first hinge shaft in a penetrating mode, a second hinge shaft is radially arranged in the middle of the ejector rod in a penetrating mode, the first two connecting plates are hinged to two ends of the second hinge shaft respectively, a third hinge shaft is hinged to the top of the first two connecting plates, a fourth hinge shaft is hinged to the two ends of the third hinge shaft, and the driving piece drives the fourth hinge shaft to move.
In the braking device for the electric hoist, the four hinge shafts are hinged with armatures, and the driving piece is an electromagnet. The arrangement of the electromagnet and the armature makes the structure simple, and when the electromagnet is powered off suddenly in the use process, the electromagnet is not powered on, and the brake device for the electric hoist keeps a braking state, so that the use safety is ensured.
In the braking device for the electric hoist, the first connecting plates are fixedly connected into a whole through the first backboard, the second connecting plates are hinged to the two end parts of the third hinging shaft, which extend out of the corresponding first connecting plates, the second connecting plates are fixedly connected into a whole through the second backboard, and the bracket is provided with a limiting groove for supporting the three two end parts of the hinging shaft. The structure is compact, the firmness is good, the first connecting plate and the second connecting part are convenient to position, the working stability is good, the limiting groove plays a limiting role on the three two ends of the hinge shaft, interference caused by excessive lower ends of the ejector rods exceeding the fixed seat is avoided, and the working stability of the ejector rods is guaranteed.
In the brake device for the electric hoist, the gap adjusting structure comprises a ratchet wheel arranged at the upper end of the screw rod exposed out of the fixing seat, the hinge shaft four is hinged with two connecting plates three, the two connecting plates three are fixedly connected into a whole through the back plate three, the lower end of the two connecting plates three is penetrated with a hinge shaft five hinged with the support, the bottom end of the two connecting plates three below the hinge shaft five is penetrated with a pin shaft, and the pin shaft is penetrated with a pusher dog for poking the ratchet wheel.
In the braking device for the electric hoist, the second spring is sleeved on the pin shaft, the positioning plate is arranged on the pin shaft in a penetrating mode, and the end portion of the pusher dog at the pin shaft is located between the second spring and the positioning plate. The positioning plate eliminates the size error, so that the positioning precision of the pusher dog is high, the second spring provides elasticity, so that the end part of the pusher dog at the pin shaft always abuts against the positioning plate, the end of the pusher dog cannot displace, and the working stability is good.
In the braking device for the electric hoist, the last brake disc is provided with two limiting protrusions positioned on two sides of the top plate. The limiting bulge prevents the top plate from swinging left and right, and the top plate works stably to ensure the effectiveness of braking.
In the braking device for the electric hoist, the ejector rod is arranged close to the edge of the fixing seat, and the edge of the fixing seat is provided with a notch for the ejector rod to pass through. This facilitates the mounting arrangement and also ensures an optimal lever position.
In the brake device for the electric hoist, the fixing seat is provided with a plurality of connecting feet which are uniformly distributed in the circumferential direction, and the connecting feet are fixedly connected with the connecting flange. Therefore, the working condition of parts between the fixing seat and the connecting flange can be visually seen, and detection before packaging of finished products is facilitated.
Compared with the prior art, the brake device for the electric hoist has the advantages of compact structure, rapid braking process, sensitive response, good braking effect, good working stability, automatic adjustment of braking clearance, breaking through the defect of lack of convenience and timeliness of manual adjustment, saving labor hour, improving production efficiency, effectively avoiding rollover and tailing, and improving braking safety.
Drawings
Fig. 1 is a perspective view of a first view of the brake device for an electric hoist.
Fig. 2 is a perspective view of a second view of the brake device for the electric hoist.
Fig. 3 is a perspective view of a third view of the brake device for the electric hoist.
Fig. 4 is a plan view showing the structure of the brake device for the electric hoist.
Fig. 5 is a partial construction diagram of the brake device for an electric hoist.
Fig. 6 is a perspective view of the finger, screw and link assembly of the brake device for the electric hoist.
In the figure, 1, a connecting flange; 2. a guide post; 3. a brake disc; 31. a limit protrusion; 4. a brake pad; 5. a brake spring; 6. a fixing seat; 61. a notch; 62. a connecting pin; 7. a bracket; 71. a limit groove; 8. a push rod; 9. a top plate; 10. a screw; 11. a first hinge shaft; 12. a first connecting plate; 13. a second hinge shaft; 14. a third hinge shaft; 15. a second connecting plate; 16. a hinge shaft IV; 17. an armature; 18. an electromagnet; 19. a backboard I; 20. a backboard II; 21. a first spring; 22. a ratchet wheel; 23. a third connecting plate; 24. a back plate III; 25. a fifth hinging shaft; 26. a pin shaft; 27. a pusher dog; 28. a second spring; 29. and (5) positioning the plate.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, fig. 2 and fig. 3, this brake equipment for electric block includes flange 1, flange 1 is last to have linked firmly guide pillar 2 of circumference equipartition, the cover is equipped with a plurality of brake disc 3 on the guide pillar 2, between first brake disc 3 and flange 1, all be equipped with the brake block 4 that supplies the brake axle to link firmly between the adjacent brake disc 3, the cover is equipped with the brake spring 5 that supports in each brake disc 3 on the guide pillar 2, flange 1 has linked firmly fixing base 6 and brake disc 3 is located between flange 1 and fixing base 6, the other end of guide pillar 2 links firmly in fixing base 6, support 7 has been linked firmly on the fixing base 6, a ejector pin 8 passes support 7 and ejector pin 8's lower extreme passes fixing base 6 and joint have the roof 9 that is located between fixing base 6 and the last brake disc 3, roof 9 joint is in the ring channel that ejector pin 8 lower extreme has, screw 10 that the screw thread connection runs through fixing base 6 is equipped with, the distance that ejector pin 8 joint was located the screw rod 10 to the roof 9 is less than in the distance of ejector pin 8 joint department to screw 10 in top contact with the roof 9, 8 cover is equipped with a spring 21 and makes and the roof 8 provide and the spring 21 and drive the roof 8 and make and move in order to drive the gap structure and drive the roof 4 and move in order to drive the axial direction of the fixing base with the brake disc after the brake disc is equipped with the gap 8 to drive the gap-stop structure and the brake disc. In this embodiment, the number of brake discs 3 and brake pads 4 is one, and the number of brake discs 3 and brake pads 4 is increased according to the requirement during actual manufacturing.
In the brake device for the electric hoist, the connecting flange 1 is fixedly connected to the shell of the speed reducer, the top end of the first spring 21 is abutted against the bracket 7, the bottom end of the first spring 21 is abutted against the ejector rod 8, the elastic force provided by the first spring 21 at ordinary times enables the lower end of the ejector rod 8 to drive the outer end of the top plate 9 to downwards press towards the inner end side of the top plate 9, under the supporting action of the screw rod 10, the inner end of the top plate 9 is tilted upwards and abutted against the brake disc 3, because the distance from the inner end of the ejector rod 8 to the screw rod 10 is smaller than the distance from the clamping joint of the ejector rod 8 to the screw rod 10, under the action of the lever principle, the acting force of the inner end of the top plate 9 abutted against the brake disc 3 is amplified, and the brake disc 3 overcomes the elastic force of the brake spring 5 and is tightly contacted with the brake pad 4, so that the brake is braked, and the brake force is large; when the braking state needs to be released, the driving structure drives the ejector rod 8 to axially displace to eliminate the acting force of the first spring 21, the ejector rod 8 drives the top plate 9 to move, the interference effect of the top plate 9 on the brake disc 3 is relieved, the brake spring 5 provides elasticity to enable the brake disc 3 and the brake pad 4 to be separated, the braking state is released, and the brake pad 4 rotates along with a brake shaft; after the brake block 4 wears, the clearance adjustment structure drives the screw rod 10 to rotate so as to compensate the braking clearance, so that the braking clearance can be automatically adjusted, the defect that manual adjustment lacks convenience and timeliness is overcome, working hours are saved, the production efficiency is improved, the phenomena of turning over and swinging the tail are effectively avoided, and the braking safety is improved.
Further, the driving structure comprises a driving piece and a connecting rod assembly, wherein the driving piece is fixedly connected to the fixing seat 6 or the support 7, the connecting rod assembly is positioned between the driving piece and the ejector rod 8, and the driving piece drives the ejector rod 8 to axially displace through the connecting rod assembly. As shown in fig. 3, fig. 4 and fig. 5, the connecting rod assembly includes a first hinge shaft 11 hinged to the bottom of the bracket 7, a first two connecting plates 12 positioned in the bracket 7 and positioned at two sides of the ejector rod 8 are arranged on the first hinge shaft 11 in a penetrating manner, a second hinge shaft 13 is radially arranged in the middle of the ejector rod 8 in a penetrating manner, the first two connecting plates 12 are hinged to two ends of the second hinge shaft 13 respectively, a third hinge shaft 14 is hinged to the top of the first two connecting plates 12, two connecting plates 15 are hinged to two ends of the third hinge shaft 14, a fourth hinge shaft 16 is hinged between the second two connecting plates 15, the driving member drives the fourth hinge shaft 16 to move, an armature 17 is hinged to the fourth hinge shaft 16 in the embodiment, and the driving member is an electromagnet 18 fixedly connected to the fixed seat 6.
When the electromagnet 18 is not electrified, the elastic force provided by the first spring 21 enables the armature 17 to extend, the ejector rod 8 is in an extending state, the inner end of the top plate 9 is abutted against the brake disc 3, the braking device for the electric hoist keeps a braking state, and even if the electric hoist is suddenly powered off, the elastic force provided by the first spring 21 still enables the inner end of the top plate 9 to be abutted against the brake disc 3 to brake, so that the use safety is improved; when the braking is required to be released, the electromagnet 18 is electrified, the armature 17 retracts and drives the connecting plate II to be far away from the ejector rod 8, the connecting plate II 15 drives the top of the connecting plate I12 to be far away from the ejector rod 8, the connecting plate I12 rotates around the hinge shaft I11, the bottom of the connecting plate I12 drives the hinge shaft II 13 to be far away from the fixed seat 6, at the moment, the hinge shaft II 13 drives the ejector rod 8 to overcome the elastic force of the spring I21 and axially displace in the direction far away from the brake disc 3, the ejector rod 8 drives the top plate 9 to displace so that the inner end of the top plate 9 is separated from the brake disc 3, the brake spring 5 provides elastic force so that the brake disc 3 and the brake disc 4 are separated, and the braking is released, and the brake disc 4 rotates along with the brake shaft.
The two connecting plates I12 are fixedly connected into a whole through the back plate I19, the two end parts of the hinge shaft III 14, which extend out of the corresponding connecting plates I12, are hinged with the connecting plates II 15, the two connecting plates II 15 are fixedly connected into a whole through the back plate II 20, and the bracket 7 is provided with a limiting groove 71 for supporting the two end parts of the hinge shaft III 14. The structure is compact, the firmness is good, the first connecting plate 12 and the second connecting part are convenient to position, the working stability is good, the limiting groove 71 plays a limiting role on the two ends of the third hinge shaft 14, the lower end of the ejector rod 8 is prevented from exceeding the fixed seat 6 too much to interfere, and the working stability of the ejector rod 8 is guaranteed.
As shown in fig. 5 and 6, the gap adjusting structure includes a screw 10, a ratchet 22 exposed from the upper end of the fixing seat 6, two connecting plates three 23 hinged to the hinge shaft four 16, the two connecting plates three 23 fixedly connected into a whole through a back plate three 24, a hinge shaft five 25 hinged to the bracket 7 penetrating through the lower end of the two connecting plates three 23, a pin 26 penetrating through the bottom end of the two connecting plates three 23 below the hinge shaft five 25, and a pawl 27 penetrating through the pin 26 for pulling the ratchet 22. The structure is compact, and the linkage is good; during operation, the hinge shaft IV 16 drives the connecting plate III 23 to rotate around the hinge shaft V25, thereby driving the pin shaft 26 to rotate around the hinge shaft V25, the pin shaft 26 drives the pawl 27 to move, the hinge shaft V25 plays a role of blocking so as to prevent the pawl 27 from tilting upwards, because a gap is reserved between every two teeth of the ratchet wheel 22, when the brake block 4 is not worn, the bent shifting head of the pawl 27 reciprocates between two adjacent teeth of the ratchet wheel 22 and does not cause the rotation of the screw 10, when the brake block 4 is worn, the axial displacement of the ejector rod 8 is increased, so that the stroke of the hinge shaft IV 16 is increased, the stroke of the pin shaft 26 driving the pawl 27 is also increased, the teeth of the ratchet wheel 22 are driven by the shifting head of the pawl 27 to rotate the screw 10 by a certain angle, and the lower end of the screw 10 stretches out to eliminate the braking gap, thus the automatic adjustment of the braking gap is realized, and the braking safety is improved.
In order to ensure stable operation of the shifting fork, a second spring 28 is sleeved on the pin shaft 26, a positioning plate 29 is arranged on the pin shaft 26 in a penetrating way, and the end part of the shifting claw 27 at the pin shaft 26 is positioned between the second spring 28 and the positioning plate 29; for the top plate 9 to work stably, the last brake disc 3 is provided with two limit bulges 31 positioned on two sides of the top plate 9; for convenient installation and arrangement, the ejector rod 8 is arranged close to the edge of the fixed seat 6, and the edge of the fixed seat 6 is provided with a notch 61 for the ejector rod 8 to pass through; for the convenience of detection, the fixing base 6 is provided with four connecting pins 62 which are uniformly distributed in the circumferential direction, and the connecting pins 62 are fixedly connected with the connecting flange 1.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The utility model provides a brake equipment for electric block, includes flange (1), flange (1) on link firmly have linked firmly guide pillar (2) of circumference equipartition, guide pillar (2) on the cover be equipped with a plurality of brake disc (3), between first brake disc (3) and flange (1), all be equipped with brake block (4) that supply brake axle to link firmly between adjacent brake disc (3), guide pillar (2) on the cover be equipped with brake spring (5) that support in each brake disc (3), characterized in that, flange (1) on link firmly fixing base (6) and brake disc (3) are located between flange (1) and fixing base (6), fixing base (6) on link firmly support (7), the lower extreme of a push rod (8) pass fixing base (6) and joint have roof (9) that are located between fixing base (6) and the brake disc (3), fixing base (6) middle part department threaded connection have with screw rod (10) that will be in (6) and screw rod (8) are located the screw rod (10) of the screw rod (8) of the inner end of a push rod (8) and the roof distance of roof (10) to the roof (10), the utility model discloses a brake device, including a fixed seat (7), a fixed seat (6), a push rod (8) cover be equipped with spring one (21) and spring one (21) provide elasticity and make push rod (8) lower extreme drive roof (9) inner upwarp and conflict in last brake disc (3) with the braking, fixing base (6) on be equipped with and drive push rod (8) axial displacement in order to release the drive structure of braking, fixing base (6) on still be equipped with and can drive screw rod (10) and rotate the clearance adjustment structure in order to compensate the braking clearance after brake block (4) wearing and tearing, drive structure include driving piece and connecting rod assembly, the driving piece link firmly link to fixing base (6) or support (7) on, connecting rod assembly be located between driving piece and push rod (8) and drive push rod (8) axial displacement through connecting rod assembly, connecting rod assembly include articulated shaft one (11) that support (7) bottom articulated have, articulated shaft one (11) wear to be equipped with and be located in support (7) and be located push rod (8) both sides, near middle position radial worn out of push rod (8) and be equipped with articulated shaft two connecting plates (12), two articulated shaft two connecting plates (13) are articulated shaft two (14) are articulated shaft two and two connecting plate (14) are articulated shaft two, two end portion (14) are articulated shaft two (14) are articulated respectively, the hinge mechanism is characterized in that a hinge shaft IV (16) is hinged between the two connecting plates II (15), the driving piece drives the hinge shaft IV (16) to displace, the gap adjusting structure comprises a screw rod (10) and a ratchet wheel (22) arranged at the upper end of the fixing seat (6), the hinge shaft IV (16) is hinged with two connecting plates III (23), the two connecting plates III (23) are fixedly connected into a whole through a back plate III (24), the lower end of the two connecting plates III (23) is provided with a hinge shaft V (25) hinged with the support (7) in a penetrating manner, the bottom end of the lower part of the hinge shaft V (25) is provided with a pin shaft (26) in a penetrating manner, and the pin shaft (26) is provided with a poking claw (27) for poking the ratchet wheel (22).
2. The braking device for an electric hoist according to claim 1, characterized in that the fourth hinge shaft (16) is hinged with an armature (17), and the driving member is an electromagnet (18).
3. The braking device for the electric hoist according to claim 2, characterized in that the two first connecting plates (12) are fixedly connected into a whole through the first back plate (19), the two end parts of the third hinging shaft (14) extending out of the corresponding first connecting plates (12) are hinged with the second connecting plates (15), the two second connecting plates (15) are fixedly connected into a whole through the second back plate (20), and the bracket (7) is provided with a limiting groove (71) for supporting the two end parts of the third hinging shaft (14).
4. The braking device for the electric hoist according to claim 1, characterized in that the pin shaft (26) is sleeved with a second spring (28) and the pin shaft (26) is provided with a positioning plate (29) in a penetrating way, and the end part of the finger (27) at the pin shaft (26) is positioned between the second spring (28) and the positioning plate (29).
5. Brake device for electric hoist according to claim 1 or 2, characterized in that the last brake disc (3) has two limit projections (31) on both sides of the top plate (9).
6. The braking device for electric hoist according to claim 1 or 2, characterized in that the ejector rod (8) is arranged close to the edge of the fixed seat (6), and the edge of the fixed seat (6) is provided with a notch (61) for the ejector rod (8) to pass through.
7. The braking device for electric hoist according to claim 1 or 2, characterized in that the fixing seat (6) is provided with a plurality of connecting feet (62) which are uniformly distributed along the circumferential direction, and the connecting feet (62) are fixedly connected with the connecting flange (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769394.XA CN110386567B (en) | 2019-08-20 | 2019-08-20 | Brake device for electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910769394.XA CN110386567B (en) | 2019-08-20 | 2019-08-20 | Brake device for electric hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110386567A CN110386567A (en) | 2019-10-29 |
| CN110386567B true CN110386567B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910769394.XA Active CN110386567B (en) | 2019-08-20 | 2019-08-20 | Brake device for electric hoist |
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| CN (1) | CN110386567B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415752B (en) * | 2021-08-23 | 2021-10-29 | 徐州天太机械制造有限公司 | Brake device of elevator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5253738A (en) * | 1990-07-12 | 1993-10-19 | Inventio Ag | Safety disc brake for lifts |
| CN2185724Y (en) * | 1994-04-15 | 1994-12-21 | 王坤生 | Power-storage energy-saving device for bicycle |
| JPH10129989A (en) * | 1996-10-25 | 1998-05-19 | Sanyo Kogyo Kk | Braking device for hoist |
| CN102730591A (en) * | 2012-04-18 | 2012-10-17 | 浙江诺和机电有限公司 | Winch brake device |
| CN210313292U (en) * | 2019-08-20 | 2020-04-14 | 浙江沃达起重机械有限公司 | Brake device for electric hoist |
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2019
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253738A (en) * | 1990-07-12 | 1993-10-19 | Inventio Ag | Safety disc brake for lifts |
| CN2185724Y (en) * | 1994-04-15 | 1994-12-21 | 王坤生 | Power-storage energy-saving device for bicycle |
| JPH10129989A (en) * | 1996-10-25 | 1998-05-19 | Sanyo Kogyo Kk | Braking device for hoist |
| CN102730591A (en) * | 2012-04-18 | 2012-10-17 | 浙江诺和机电有限公司 | Winch brake device |
| CN210313292U (en) * | 2019-08-20 | 2020-04-14 | 浙江沃达起重机械有限公司 | Brake device for electric hoist |
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| CN110386567A (en) | 2019-10-29 |
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