CN211971615U - Brake device of soil lifting machine - Google Patents
Brake device of soil lifting machine Download PDFInfo
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- CN211971615U CN211971615U CN202020369660.8U CN202020369660U CN211971615U CN 211971615 U CN211971615 U CN 211971615U CN 202020369660 U CN202020369660 U CN 202020369660U CN 211971615 U CN211971615 U CN 211971615U
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- ratchet
- ratchet wheel
- hopper
- rotating roller
- support
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- 239000002689 soil Substances 0.000 title description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 230000001133 acceleration Effects 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 27
- 238000007906 compression Methods 0.000 claims description 27
- 230000005484 gravity Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002337 anti-port Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a carry native machine arresting gear relates to the technical field of high-tension electricity tower construction, it includes the support, live-rollers and one-way locking mechanism with higher speed, the live-rollers rotates to be connected on the support, one-way locking mechanism with higher speed includes interior ratchet, outer ratchet and reset assembly, interior ratchet sets up on the live-rollers, outer ratchet sets up on the support, the ratchet has been seted up on the outer peripheral face of interior ratchet, the ratchet has also been seted up on the inner peripheral surface of outer ratchet, when the hopper moves downwards with higher speed, interior ratchet and outer ratchet meshing, reset assembly is connected with interior ratchet. The utility model can mesh the inner ratchet wheel and the outer ratchet wheel when the hopper operates in accelerated descending, further force the hopper to stop operating downwards, so that the hopper is protected by the unidirectional accelerated locking device when operating downwards, thereby improving the safety; meanwhile, the unidirectional acceleration locking mechanism can automatically adapt to the running state of the hopper, the labor intensity of operators is reduced, and the efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the technique of high-tension electricity tower construction and specifically relates to a carry native machine brake equipment is related to.
Background
An earth-lifting machine is a machine for lifting low earth to high earth, and is generally used in excavation of foundation of civil engineering. Referring to fig. 8, the current soil lifting machine mainly comprises a support 11, a rotating roller 12, a driving motor 13 and a hopper 14, wherein the support 11 is fixedly arranged on the ground, the driving motor 13 is fixedly connected to the support 11 through a bolt, the rotating roller 12 is coaxially and fixedly connected to an output shaft of the driving motor 13, the rotating roller 12 is rotatably connected to the support 11, a steel cable 15 is wound on the outer peripheral surface of the rotating roller 12, one end of the steel cable 15 is fixedly connected with the rotating roller 12, and the other end of the steel cable 15 is fixedly connected with the hopper 14. When excavating a foundation, soil in the foundation needs to be loaded into the hopper 14 of the soil lifting machine, and then the rotating roller 12 is driven to rotate by the driving motor 13, thereby lifting the hopper 14 from the foundation.
When the foundation is excavated, constructors can always excavate the foundation pit in the foundation pit, and if the driving motor 13 is powered off or the hopper 14 falls down due to misoperation of personnel, the constructors in the foundation pit can be injured by the hopper 14. Therefore, the existing earth lifting machine is also provided with a ratchet wheel 16 and a pawl 17, the ratchet wheel 16 is coaxially sleeved on the outer peripheral surface of the rotating roller 12, the pawl 17 is rotatably connected to the bracket 11, and the ratchet wheel 16 is meshed with the pawl 17. When the bin 14 is lifted upwards, the ratchet wheel 16 is disengaged from the pawl 17 to facilitate lifting of the bin 14, when the bin 14 has a tendency to fall, the ratchet wheel 16 is engaged with the pawl 17 to prevent the bin 14 from falling, and when it is desired to lower the bin 14, the pawl 17 is rotated to disengage the pawl 17 from the ratchet wheel 16 to facilitate falling of the bin 14.
The above prior art solutions have the following drawbacks: when the driving motor drives the hopper to fall, the ratchet wheel and the pawl are disengaged, and if the driving motor is powered off, the hopper can lose control and smash the bottom of the foundation pit, so that constructors in the foundation pit can be easily injured by smashing.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a carry native quick-witted arresting gear, can make the hopper whereabouts under the prerequisite that receives the protection, reduce and lead to the hopper to injure constructor's probability by a crashing object because of the driving motor outage.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a carry native machine arresting gear, includes the support, live-rollers and one-way locking mechanism with higher speed, the live-rollers rotates to be connected on the support, one-way locking mechanism with higher speed includes interior ratchet, outer ratchet and reset block, interior ratchet sets up on the live-rollers, outer ratchet sets up on the support, the ratchet has been seted up on the outer peripheral face of interior ratchet, the ratchet has also been seted up on the inner peripheral surface of outer ratchet, when the hopper down motion with higher speed, interior ratchet and outer ratchet meshing, reset block is connected with interior ratchet.
By adopting the technical scheme, during construction, the hopper moves upwards, the inner ratchet wheel and the outer ratchet wheel cannot be locked, so that the hopper can normally move upwards, and the inner ratchet wheel and the outer ratchet wheel cannot be locked when the hopper moves downwards at a constant speed, so that the hopper can normally move downwards; when the driving motor is powered off to enable the hopper to move downwards in an accelerated mode, the inner ratchet wheel is meshed with the outer ratchet wheel to further force the hopper to stop moving downwards, the hopper is protected by the unidirectional accelerated locking device when moving downwards, the probability that constructors are injured by the hopper is further reduced, safety is improved, meanwhile, the unidirectional accelerated locking mechanism does not need to be adjusted when the operator controls the hopper to move upwards and downwards, the unidirectional accelerated locking mechanism can automatically adapt to the operation state of the hopper, labor intensity of the operator is reduced, and efficiency is improved; after the hopper stops accelerating and descending, the hopper moves upwards, and the reset component can drive the inner ratchet wheel to reset, so that the inner ratchet wheel is separated from the outer ratchet wheel.
The present invention may be further configured in a preferred embodiment as: outer ratchet fixed connection is on the support, and fixedly connected with first slider on the inner peripheral surface of interior ratchet, has seted up the spiral spout on the length direction along the live-rollers on the outer peripheral surface of live-rollers, first slider and spiral spout joint, and interior ratchet slides along the length direction of spiral spout and is connected with the live-rollers.
By adopting the technical scheme, when the hopper falls down at an accelerated speed, the inner ratchet wheel slides along the spiral chute under the action of inertia, so that the inner ratchet wheel is meshed with the outer ratchet wheel, the outer ratchet wheel forces the inner ratchet wheel to stop rotating, and the inner ratchet wheel drives the rotating roller to stop rotating, thereby achieving the purpose of preventing the hopper from continuously falling.
The present invention may be further configured in a preferred embodiment as: the reset assembly comprises a first compression spring and a reset pin, the axis of the reset pin is parallel to the axis of the rotating roller, the reset pin slides along the axis of the reset pin and is connected with the outer ratchet wheel, one end of the first compression spring is fixedly connected with the reset pin, and the other end of the first compression spring is fixedly connected with the outer ratchet wheel.
Through adopting above-mentioned technical scheme, when needs make interior ratchet reset, make the hopper upwards move earlier, and then make interior ratchet and outer ratchet throw off, interior ratchet and outer ratchet support lose frictional force, and interior ratchet slides along spiral chute under the effect of first compression spring and the round pin that resets this moment, and then makes interior ratchet and outer ratchet throw off completely, reaches the effect that resets.
The present invention may be further configured in a preferred embodiment as: the outer ratchet wheel is connected with the support, the inner ratchet wheel is connected with the rotating roller in a sliding mode along the direction perpendicular to the axis of the rotating roller, a second sliding groove is formed in the outer peripheral face of the rotating roller along the direction perpendicular to the axis of the rotating roller, a second sliding block is fixedly connected to the inner peripheral face of the inner ratchet wheel and is connected with the second sliding groove in an inserting mode, and the center of gravity of the inner ratchet wheel deviates from the axis of the rotating roller.
By adopting the technical scheme, the hopper falls down in an accelerating way, the inner ratchet wheel slides relative to the rotating roller along the direction vertical to the axis of the rotating roller under the action of centrifugal force, so that the inner ratchet wheel is meshed with the outer ratchet wheel, the outer ratchet wheel forces the inner ratchet wheel to stop rotating, and the inner ratchet wheel drives the rotating roller to stop rotating, thereby achieving the purpose of preventing the hopper from falling continuously.
The present invention may be further configured in a preferred embodiment as: the focus of interior ratchet is located the one side of keeping away from the second slider, and the subassembly that resets includes first flexure strip, and the one end of first flexure strip is close to the one end butt of live-rollers with the second slider, the other end of first flexure strip and the tank bottom butt of second spout.
By adopting the technical scheme, when the hopper runs at a constant speed, the inner ratchet wheel is separated from the outer ratchet wheel under the action of the first elastic sheet so as to avoid the inner ratchet wheel from influencing the running of the hopper; when the hopper runs downwards in an accelerated mode, centrifugal force of the inner ratchet wheel presses the first elastic piece, and the inner ratchet wheel is meshed with the outer ratchet wheel.
The present invention may be further configured in a preferred embodiment as: the unidirectional acceleration locking mechanism is also provided with a protection component, and the protection component is connected with the inner ratchet wheel.
By adopting the technical scheme, after the hopper runs downwards in an accelerating mode, the inner ratchet wheel is meshed with the outer ratchet wheel, the rotating roller can rotate reversely easily after the rotating roller receives the reverse force given by the outer ratchet wheel to the inner ratchet wheel, the inner ratchet wheel is separated from the outer ratchet wheel again, the hopper continuously falls, the inner ratchet wheel and the outer ratchet wheel are meshed with each other and then the hopper is prevented from falling again.
The present invention may be further configured in a preferred embodiment as: the protection component comprises a positioning pin and a second compression spring, the axis of the positioning pin is parallel to the axis of the rotating roller, the positioning pin slides along the axis of the positioning pin and is connected with the support, one end of the second compression spring is abutted to the support, the other end of the second compression spring is abutted to the positioning pin, the outer ratchet wheel is rotatably connected with the support along the axis of the positioning pin, a positioning hole is formed in the end face of the inner ratchet wheel, and the positioning pin is inserted into the positioning hole.
Through adopting above-mentioned technical scheme, when initial condition, the one end butt that compression spring was kept away from to the locating pin is on the terminal surface of outer ratchet, and after inner ratchet and outer ratchet meshing, interior ratchet drove outer ratchet and rotates, and then makes the locating pin no longer the butt on the terminal surface of outer ratchet and insert in the locating hole on the interior ratchet, prevents interior ratchet antiport, and then reaches and avoids leading to interior ratchet and outer ratchet to throw off the purpose because of the live-rollers reversal.
The present invention may be further configured in a preferred embodiment as: the locating pin is provided with a handheld portion, one end, far away from the inner ratchet wheel, of the locating pin penetrates through the support, and the handheld portion is arranged outside the support.
Through adopting above-mentioned technical scheme, after the operation workman discharges the trouble, pull the locating pin through handheld portion, make the locating pin deviate from the locating hole, and then make interior ratchet can break away from with outer ratchet.
The present invention may be further configured in a preferred embodiment as: a plurality of stoppers are fixedly connected to the outer peripheral surface of the outer ratchet wheel along the axis of the outer ratchet wheel, a plurality of limiting grooves are uniformly formed in the frame along the axis of the outer ratchet wheel, and the stoppers are clamped in the limiting grooves.
Through adopting above-mentioned technical scheme, outer ratchet can take place to rotate with the support along the axle center of self, and the stopper slides in the spacing groove along the axle center of outer ratchet, and including the ratchet drive outer ratchet rotate the back, the stopper slides from the spacing groove, treats the stopper and the one end butt back in spacing groove, outer ratchet stall, and the locating pin reinserts in the locating hole this moment, avoids outer ratchet to block the locating pin absolutely, has improved the security.
The present invention may be further configured in a preferred embodiment as: the reset assembly further comprises a second elastic sheet, the second elastic sheet is arranged in the limiting groove, one end of the second elastic sheet is abutted to the side wall of the limiting groove, and the other end of the second elastic sheet is abutted to the limiting block.
By adopting the technical scheme, after the inner ratchet wheel is separated from the outer ratchet wheel, the second elastic sheet drives the outer ratchet wheel to reset, so that the positioning pin is abutted to the end face of the outer ratchet wheel again, and the positioning pin is prepared to extend out next time.
To sum up, the utility model discloses a following at least one useful technological effect:
1. through one-way locking mechanism's setting with higher speed, when driving motor outage makes the hopper when descending with higher speed, interior ratchet and outer ratchet meshing, and then force the hopper to stop the downward movement, so set up the hopper also protected by one-way locking device with higher speed when descending with higher speed, and then reduced constructor and pounded the probability of hindering by the hopper, the security has been improved, operating personnel needn't adjust one-way locking mechanism with higher speed again when controlling the hopper to go up and down simultaneously, one-way locking mechanism with higher speed alright the running state of self-adaptation hopper, operating personnel's intensity of labour has been reduced, the efficiency is improved.
2. Through the setting of reset assembly for the live-rollers is after the antiport, and interior ratchet can automatic disengagement reset with outer ratchet, has reduced operating personnel's intensity of labour.
3. Through the arrangement of the protection assembly, after the hopper runs downwards in an accelerated manner, the inner ratchet wheel is meshed with the outer ratchet wheel, the rotating roller can rotate reversely easily after receiving a reverse force given by the outer ratchet wheel to the inner ratchet wheel, so that the inner ratchet wheel is separated from the outer ratchet wheel again, the hopper continuously falls, the protection assembly is arranged, and the inner ratchet wheel is meshed with the outer ratchet wheel and then kept in a meshed state, so that the hopper is prevented from falling again.
Drawings
FIG. 1 is a schematic overall structure diagram according to a first embodiment;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic cross-sectional view of an outer ratchet according to a first embodiment, aiming at showing the connection relationship between the reset pin and the outer ratchet;
FIG. 4 is a schematic partial sectional view showing the entire structure of the second embodiment;
FIG. 5 is an enlarged view of a portion B of FIG. 4;
FIG. 6 is a cross-sectional view of a stent at the outer ratchet of an embodiment; aims to embody the connection relation between the inner ratchet wheel and the outer ratchet wheel;
FIG. 7 is a schematic cross-sectional view of another perspective of the bracket at the outer ratchet of the embodiment, aiming at embodying the connection relationship of the protection component and the bracket;
fig. 8 is a schematic view of the overall structure of the prior art.
Reference numerals: 11. a support; 111. a limiting groove; 112. a second guide hole; 12. a rotating roller; 121. a spiral chute; 122. a second chute; 13. a drive motor; 14. a hopper; 15. a wire rope; 16. a ratchet wheel; 17. a pawl; 2. a unidirectional acceleration locking mechanism; 21. an inner ratchet wheel; 211. a first slider; 212. a second slider; 213. positioning holes; 214. hollowing out holes; 22. an outer ratchet wheel; 221. a first guide hole; 222. a limiting block; 23. a reset assembly; 231. a reset pin; 232. a first compression spring; 233. a first elastic sheet; 234. a second elastic sheet; 24. a protection component; 241. positioning pins; 242. a second compression spring; 243. a hand-held portion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1, the present embodiment provides a brake device for a soil lifting machine, which includes a bracket 11 and a rotating roller 12. The rotating roller 12 is rotatably connected to the support 11, the support 11 is also fixedly connected with a driving motor 13 through a bolt, and the rotating roller 12 is coaxially connected with an output shaft of the driving motor 13. A steel cable 15 is wound on the rotating roller 12, one end of the steel cable 15 is clamped or welded with the rotating roller 12, and the other end of the steel cable 15 is hung with a hopper 14.
Referring to fig. 1 and 2, when the rotating roller 12 rotates in the direction R, the hopper 14 moves downward, and when the rotating roller 12 rotates in the direction opposite to the direction R, the hopper 14 moves upward. The support 11 is further provided with a unidirectional acceleration locking mechanism 2, and the unidirectional acceleration locking mechanism 2 comprises an inner ratchet wheel 21 and an outer ratchet wheel 22. A spiral chute 121 is formed on the outer circumferential surface of the rotating roller 12 along the longitudinal direction of the rotating roller 12, and the spiral chute 121 is opposite to the direction R when viewed toward the driving motor 13.
The inner peripheral surface of the inner ratchet wheel 21 is provided with a first sliding block 211 matched with the spiral chute 121, the first sliding block 211 is clamped with the first chute, and the inner ratchet wheel 21 is coaxially sleeved on the outer peripheral surface of the rotating roller 12. The inner ratchet wheel 21 is coaxially and rotatably connected with the rotating roller 12, and the inner ratchet wheel 21 is connected with the rotating roller 12 in a sliding manner in the length direction of the spiral chute 121.
The outer ratchet wheel 22 is fixedly connected to the bracket 11 through a bolt, and the outer ratchet wheel 22 is coaxial with the rotating roller 12. The rotating roller 12, the inner ratchet 21, the outer ratchet 22 and the drive motor 13 are arranged in this order in the axial direction of the rotating roller 12. Ratchets are arranged on the outer peripheral surface of the inner ratchet wheel 21, ratchets are arranged on the inner peripheral surface of the outer ratchet wheel 22, and the inner ratchet wheel 21 and the outer ratchet wheel 22 are meshed with each other when being positioned on the same plane.
Referring to fig. 2 and 3, the one-way acceleration locking mechanism 2 further includes a reset assembly 23, and the reset assembly 23 includes a reset pin 231 and a first compression spring 232. A first guide hole 221 is formed in an end surface of the outer ratchet 22 close to the inner ratchet 21, the first compression spring 232 is disposed in the first guide hole 221, and the first compression spring 232 is clamped with a hole bottom of the first guide hole 221.
The reset pin 231 is inserted into the first guide hole 221, one end of the reset pin 231 close to the first compression spring 232 is welded to the first compression spring 232, and one end of the reset pin 231 far away from the first compression spring 232 is abutted to one end face of the inner ratchet wheel 21 close to the outer ratchet wheel 22.
The implementation principle of the embodiment is as follows:
when the hopper 14 moves upward, the inner ratchet 21 slides in the spiral chute 121 toward the rotating roller 12, so that the inner ratchet 21 and the outer ratchet 22 cannot be engaged, and the hopper 14 normally moves upward; when the hopper 14 normally runs downwards, the rotating roller 12 rotates at a constant speed, and the inner ratchet 21 and the rotating roller 12 rotate coaxially and at the same speed, so that the inner ratchet 21 and the outer ratchet 22 cannot be meshed; when the hopper 14 loses the control and runs downwards in an accelerated way, the rotating roller 12 rotates in an accelerated way, the inner ratchet wheel 21 slides towards the outer ratchet wheel 22 along the direction of the spiral chute 121 under the driving of inertia, so that the inner ratchet wheel 21 is meshed with the outer ratchet wheel 22, the hopper 14 is forced to stop falling, meanwhile, under the action of the gravity of the hopper 14, the friction force between the inner ratchet wheel 21 and the outer ratchet wheel 22 is larger than the elastic force of the first compression spring 232, and the inner ratchet wheel 21 and the outer ratchet wheel 22 cannot be disengaged when the hopper 14 stops falling downwards; after the danger is relieved, the driving motor 13 drives the rotating roller 12 to rotate in the direction opposite to the direction R, so that the friction force between the inner ratchet wheel 21 and the outer ratchet wheel 22 is lost, the inner ratchet wheel 21 is pushed out from the outer ratchet wheel 22 by the return spring and the return pin 231, and the rotating roller 12 can rotate freely again.
Example two:
referring to fig. 4 and 5, the present embodiment provides a brake device for a soil lifting machine, which is different from the first embodiment in that the inner ratchet 21 and the outer ratchet 22 are located on the same plane, and the outer diameter of the inner ratchet 21 is smaller than the inner diameter of the outer ratchet 22. The outer ratchet wheel 22 is rotatably connected with the bracket 11 along the axis of the rotating roller 12, the outer circumferential surface of the outer ratchet wheel 22 is provided with a limiting block 222, the inner circumferential surface of the bracket 11 is provided with a limiting groove 111 larger than the limiting block 222, and the limiting block 222 is clamped in the limiting groove 111.
The restoring member includes a second elastic piece 234, and the second elastic piece 234 is also disposed in the limiting groove 111. One end of the second elastic piece 234 abuts against the stopper 222, and the other end of the second elastic piece 234 abuts against the side wall of the stopper groove 111. When the rotatable roller 12 rotates in the direction R, the hopper 14 runs downward, and when the rotatable roller 12 rotates in the direction opposite to R, the hopper 14 runs upward. The second elastic piece 234 is provided on the R-direction front side of the stopper 222.
Referring to fig. 6, the inner circumferential surface of the inner ratchet 21 is integrally formed with a second slider 212, the outer circumferential surface of the rotating roller 12 is provided with a second sliding slot 122 along a direction perpendicular to the axis thereof, the inner ratchet 21 is sleeved on the outer circumferential surface of the rotating roller 12, and the second slider 212 is clamped in the second sliding slot 122. The inner ratchet wheel 21 rotates coaxially with the rotating roller 12 along the axis of the rotating roller 12, and the inner ratchet wheel 21 is connected with the rotating roller 12 in a sliding manner along a direction perpendicular to the axis of the rotating roller 12.
The reset piece further comprises a first elastic piece 233, the first elastic piece 233 is arranged in the second sliding groove 122, one end of the first elastic piece 233 abuts against the groove bottom of the second sliding groove 122, and the other end of the first elastic piece 233 abuts against the first sliding block 211. The inner ratchet 21 has a hollow hole 214 at an end close to the second slider 212, so that the center of gravity of the inner ratchet 21 is located at a side far from the second slider 212.
Referring to fig. 4 and 7, the one-way accelerating locking mechanism 2 is further provided with a protection assembly 24, and the protection assembly 24 includes a positioning pin 241 and a second compression spring 242. A second guide hole 112 is formed in the inner end surface of the bracket 11 close to the driving motor 13, and the second compression spring 242 is coaxially arranged in the second guide hole 112. The positioning pin 241 is inserted into the second guide hole 112, one end of the second compression spring 242 can abut against the bottom of the second guide hole 112, and the other end of the second compression spring 242 abuts against the positioning pin 241.
A plurality of positioning holes 213 are uniformly formed on one end surface of the inner ratchet 21 close to the driving motor 13 along the axis of the inner ratchet, and the positioning holes 213 are formed on the ratchet teeth of the inner ratchet 21. One end of the positioning pin 241, which is far away from the driving motor 13, abuts against one end face of the outer ratchet wheel 22, which is close to the driving motor 13, and after the outer ratchet wheel 22 rotates along the axis of the outer ratchet wheel, the positioning pin 241 is inserted into the positioning hole 213.
One end of the positioning pin 241 far away from the outer ratchet wheel 22 penetrates through the bracket 11 and is arranged outside the bracket 11, and a handheld portion 243 is further arranged on the positioning pin 241, and the handheld portion 243 is arranged at one end of the positioning pin 241 far away from the outer ratchet wheel 22. The holding portion 243 may be a pull ring screwed or welded to an end of the positioning pin 241 remote from the outer ratchet 22.
The protection components 24 are provided in plural sets, and the plural sets of protection components 24 are uniformly arranged along the axis of the rotating roller 12.
The implementation principle of the embodiment is as follows:
when the hopper 14 runs upwards, the inner ratchet wheel 21 and the rotating roller 12 rotate coaxially, so that the inner ratchet wheel 21 and the outer ratchet wheel 22 cannot be meshed, and the hopper 14 runs normally upwards; when the hopper 14 normally moves downwards, the rotating roller 12 rotates at a constant speed, and under the action of the first elastic piece 233, the inner ratchet 21 and the outer ratchet 22 keep rotating coaxially, so that the inner ratchet 21 and the outer ratchet 22 cannot be meshed, and the hopper 14 normally moves downwards; when the hopper 14 loses the control and accelerates to move downwards, the rotating roller 12 accelerates to rotate, the inner ratchet wheel 21 presses the first elastic sheet 233 under the action of centrifugal force, and the inner ratchet wheel 21 slides towards the bottom of the second sliding chute 122 along the direction vertical to the axis of the rotating roller 12, so that the inner ratchet wheel 21 is meshed with the outer ratchet wheel 22; after the inner ratchet wheel 21 is meshed with the outer ratchet wheel 22, the outer ratchet wheel 22 rotates along the direction R under the action of inertia, so that the positioning pin 241 extends out and is inserted into the positioning hole 213, and the inner ratchet wheel 21 is prevented from overturning due to inertia; then under the action of the gravity of the hopper 14, the inner ratchet wheel 21 is meshed with the outer ratchet wheel 22, and the inner ratchet wheel 21 is not separated from the outer ratchet wheel 22 when the hopper 14 stops falling downwards; after the danger is relieved, the operator firstly pulls out all the positioning pins 241 from the positioning holes 213, and then the driving motor 13 drives the rotating roller 12 to rotate in the direction opposite to the direction R, so that the friction force between the inner ratchet wheel 21 and the outer ratchet wheel 22 is lost, the first elastic sheet 233 slides the inner ratchet wheel 21 in the direction away from the bottom of the second chute 122, and further the inner ratchet wheel 21 is separated from the outer ratchet wheel 22, and the rotating roller 12 can rotate freely again.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a carry native machine arresting gear, which comprises a bracket (11), live-rollers (12) and one-way locking mechanism (2) with higher speed, live-rollers (12) rotate to be connected on support (11), one-way locking mechanism (2) with higher speed includes interior ratchet (21), outer ratchet (22) and reset block (23), interior ratchet (21) set up on live-rollers (12), outer ratchet (22) set up on support (11), the ratchet has been seted up on the outer peripheral face of interior ratchet (21), the ratchet has also been seted up on the inner peripheral surface of outer ratchet (22), when hopper (14) accelerated downward motion, interior ratchet (21) and outer ratchet (22) mesh, reset block (23) are connected with interior ratchet (21).
2. The brake device of claim 1, wherein: outer ratchet (22) fixed connection is on support (11), and fixedly connected with first slider (211) on the inner peripheral surface of interior ratchet (21), has seted up spiral spout (121) on the length direction of edge rotating roll (12) on the outer peripheral surface of rotating roll (12), and first slider (211) and spiral spout (121) joint, interior ratchet (21) are connected with rotating roll (12) slide along the length direction of spiral spout (121).
3. A brake for an earth lift according to claim 2, wherein: reset subassembly (23) including first compression spring (232) and reset pin (231), the axle center that resets pin (231) is on a parallel with the axle center of live-rollers (12), and reset pin (231) along self axle center and outer ratchet (22) slip be connected, the one end and the reset pin (231) fixed connection of first compression spring (232), the other end and outer ratchet (22) fixed connection of first compression spring (232).
4. A brake for an earth lift according to claim 3, wherein: the outer ratchet wheel (22) is connected with the support (11), the inner ratchet wheel (21) is connected with the rotating roller (12) in a sliding mode along the direction perpendicular to the axis of the rotating roller (12), a second sliding groove (122) is formed in the outer peripheral face of the rotating roller (12) along the direction perpendicular to the axis of the rotating roller (12), a second sliding block (212) is fixedly connected to the inner peripheral face of the inner ratchet wheel (21), the second sliding block (212) is connected with the second sliding groove (122) in an inserting mode, and the center of gravity of the inner ratchet wheel (21) deviates from the axis of the rotating roller (12).
5. The brake device of claim 1, wherein: the gravity center of the inner ratchet wheel (21) is located on one side far away from the second sliding block (212), the reset assembly (23) comprises a first elastic sheet (233), one end of the first elastic sheet (233) is abutted to one end, close to the rotating roller (12), of the second sliding block (212), and the other end of the first elastic sheet (233) is abutted to the bottom of the second sliding groove (122).
6. A brake device for an earth-lifting machine according to claim 5, characterized in that: the unidirectional acceleration locking mechanism (2) is also provided with a protection component (24), and the protection component (24) is connected with the inner ratchet wheel (21).
7. A brake device for an earth-lifting machine according to claim 6, characterized in that: the protection component (24) comprises a positioning pin (241) and a second compression spring (242), the axis of the positioning pin (241) is parallel to the axis of the rotating roller (12), the positioning pin (241) slides along the axis of the positioning pin (241) and is connected with the support (11), one end of the second compression spring (242) is abutted to the support (11), the other end of the second compression spring (242) is abutted to the positioning pin (241), the outer ratchet wheel (22) rotates along the axis of the positioning pin (22) and is connected with the support (11), a positioning hole (213) is formed in the end face of the inner ratchet wheel (21), and the positioning pin (241) is inserted into the positioning hole (213).
8. The brake device of claim 7, wherein: the positioning pin (241) is further provided with a handheld portion (243), one end, far away from the inner ratchet wheel (21), of the positioning pin (241) penetrates through the support (11), and the handheld portion (243) is arranged outside the support (11).
9. The brake device of claim 8, wherein: a plurality of limiting blocks (222) are fixedly connected to the outer peripheral surface of the outer ratchet wheel (22) along the axis of the outer ratchet wheel (22), a plurality of limiting grooves (111) are uniformly formed in the rack along the axis of the outer ratchet wheel (22), and the limiting blocks (222) are clamped in the limiting grooves (111).
10. The brake device of claim 9, wherein: the reset assembly (23) further comprises a second elastic sheet (234), the second elastic sheet (234) is arranged in the limiting groove (111), one end of the second elastic sheet (234) is abutted to the side wall of the limiting groove (111), and the other end of the second elastic sheet (234) is abutted to the limiting block (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369660.8U CN211971615U (en) | 2020-03-21 | 2020-03-21 | Brake device of soil lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020369660.8U CN211971615U (en) | 2020-03-21 | 2020-03-21 | Brake device of soil lifting machine |
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| Publication Number | Publication Date |
|---|---|
| CN211971615U true CN211971615U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020369660.8U Expired - Fee Related CN211971615U (en) | 2020-03-21 | 2020-03-21 | Brake device of soil lifting machine |
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| Country | Link |
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| CN (1) | CN211971615U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213362A (en) * | 2021-06-01 | 2021-08-06 | 中嘉建盛建工集团有限公司 | Assembled building panel hoist device |
-
2020
- 2020-03-21 CN CN202020369660.8U patent/CN211971615U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213362A (en) * | 2021-06-01 | 2021-08-06 | 中嘉建盛建工集团有限公司 | Assembled building panel hoist device |
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