CN213387473U - Limiting device for crane trolley - Google Patents
Limiting device for crane trolley Download PDFInfo
- Publication number
- CN213387473U CN213387473U CN202022196681.7U CN202022196681U CN213387473U CN 213387473 U CN213387473 U CN 213387473U CN 202022196681 U CN202022196681 U CN 202022196681U CN 213387473 U CN213387473 U CN 213387473U
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- Prior art keywords
- limiting device
- vehicle body
- limit switch
- crane
- crane trolley
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- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009977 dual effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 241000282693 Cercopithecidae Species 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a limiting device of a crane trolley, which comprises a track, a trolley body and an electromagnetic braking device; the rail is arranged on the crane girder; two ends of the main beam are provided with car baffles; the front and rear sides of the upper end surface of the main beam are provided with a first limiting device and a second limiting device near the car baffle; the bottom of the vehicle body is provided with traveling wheels, and the driving motor drives the traveling wheels to move; the traveling wheels are arranged on the track in a rolling manner; the driving motor is electrically connected with the first limiting device. When the walking wheels trigger the first limiting device on the corresponding side, the driving motor is powered off, and the walking impact force of the vehicle body is reduced; when the travelling wheels trigger the second limiting device, the electromagnet on the corresponding side is started to adsorb the strong magnet on the vehicle body, so that the vehicle body stops moving; the utility model discloses a dual stop device carries out the spacing braking to the dolly, and the braking effect is obvious, operates steadily, and fail safe nature is high.
Description
Technical Field
The utility model relates to a crane equipment technical field especially relates to a monkey stop device.
Background
In recent years, with the continuous development of logistics trade and industrial technology, the application of the crane is more and more extensive, the crane is used as a large-scale mechanical device, the safe use of the crane is more and more concerned and more emphasized by people,
the crane trolley is an important part of a hoisting device of a crane, the crane trolley is arranged on a crane girder and runs on a track on the crane girder to realize the transverse movement of a hoisted object, because the crane trolley has large dead weight and irregular appearance, the danger that the trolley rushes out of the track can occur if the crane trolley breaks down in the moving process, at present, aiming at the limiting device of the crane trolley, only anti-collision devices are arranged at the two ends of the track, the crane trolley can not be effectively stopped, in addition, the limiting devices can only provide a trigger limiting switch, so that after the crane trolley is stopped, the crane trolley continues to move for a certain distance due to inertia, the mechanical damage to the crane can be caused, therefore, a double limiting device capable of realizing the running process of the crane trolley is found, and simultaneously after the crane trolley is stopped, the crane trolley limiting device effectively shortens the inertial traveling distance of the crane trolley, and is wide in application range, simple in structure, convenient to manufacture and high in safety.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at overcoming the shortcoming and not enough among the prior art, provide a monkey stop device.
A limiting device for a crane trolley comprises a track, a trolley body and an electromagnetic braking device;
the track is arranged on a crane main beam; two ends of the main beam are provided with car baffles; the front and rear sides of the upper end surface of the main beam are provided with a first limiting device and a second limiting device near the car baffle; the first limiting device positioned on the same side is positioned far away from the corresponding car baffle relative to the second limiting device;
a driving motor is arranged in the vehicle body, a traveling wheel is arranged at the bottom of the vehicle body, and the driving motor drives the traveling wheel to move; the traveling wheels are arranged on the track in a rolling manner; the driving motor is electrically connected with the first limiting device;
the electromagnetic braking device comprises two electromagnets and a strong magnet; the strong magnet is arranged in the vehicle body; the two electromagnets are respectively arranged on two sides of the main beam, and each electromagnet is positioned between the second limiting device and the car stopping plate on the corresponding side; and each electromagnet is electrically connected with the second limiting device on the corresponding side.
When the travelling wheels trigger the first limiting device on the corresponding side, the driving motor is powered off, the travelling impact force of the trolley body is reduced, the impact force received by the trolley blocking plate is reduced, the service life of the equipment is prolonged, and the running stability and safety of the trolley are ensured; when the travelling wheels trigger the second limiting device, the electromagnet on the corresponding side is started to adsorb the strong magnet on the vehicle body, so that the vehicle body stops moving; the utility model discloses a dual stop device carries out the spacing braking to the dolly, and the braking effect is obvious, operates steadily, and fail safe nature is high.
Furthermore, the first limiting device and the second limiting device respectively comprise a shell, a spring, a limiting switch trigger and a limiting switch; the shell is arranged on the main beam, and the spring is vertically arranged in the corresponding shell; the limit switch trigger is arranged on the shell in a sliding mode and is arranged at the top of the spring; the limit switch is arranged at the bottom of the shell; the wheels of the travelling crane press the limit switch trigger, so that the limit switch trigger compresses the spring and is contacted with the limit switch.
Furthermore, the structure of the limit switch trigger is a hemispherical structure.
The beneficial effect who adopts above-mentioned further scheme is that, limit switch trigger's structure is hemisphere structure, simple structure, and the reaction is sensitive, reliable, and spacing effectual.
Furthermore, the device also comprises two groups of mechanical braking devices which are respectively arranged at two sides of the vehicle body; each mechanical braking device comprises a sliding sleeve, a collision rod, a stop block, a pressure spring and a steel wire rope;
the sliding sleeve is horizontally arranged on one side of the vehicle body; one end of the striker is slidably arranged on one side in the sliding sleeve, and the other end of the striker is exposed outside the sliding sleeve; the stop block is arranged on the other side of the sliding sleeve; the pressure spring is arranged in the sliding sleeve and is positioned between the stop block and the impact rod; one end of the steel wire rope is connected to the impact rod; a pulley block is rotatably arranged on the vehicle body, and the steel wire rope penetrates through the pulley block; the position of the vehicle body corresponding to the driving wheels is hinged with a brake shoe, and the other end of the steel wire rope is fixedly connected to the brake shoe.
The beneficial effect of adopting above-mentioned further scheme is that through setting up mechanical brake, when the lance collided to the fender board, can make the brake shoe rotate and compress tightly the walking wheel, further the braking of supplementary dolly, simple structure, reliable operation.
Further, the mechanical braking device further comprises a sliding block; the sliding block is arranged at one end of the collision rod, and the collision rod is arranged on one side in the sliding sleeve in a sliding mode through the sliding block.
Further, the other end of the striker is provided with a cushion pad.
The collision rod has the beneficial effects that the bumper pad is arranged on the collision rod, has good recovery capability and elasticity and strong buffering capability, can effectively relieve the impact force generated by trolley collision, avoids trolley derailment accidents caused by trolley rebound due to overlarge impact force, and protects the safety of equipment; the cushion may preferably be a urethane rubber cushion.
Further, the pulley block comprises a first pulley and a second pulley.
Further, the first pulley and the second pulley are both fixed pulleys.
Further, the structure of the brake shoe is an arc-shaped structure.
Further, the solar panel is also included; the solar panel is arranged on the vehicle body, and a storage battery is arranged in the solar panel; the solar panel is electrically connected with the electromagnet.
Adopt above-mentioned further scheme's beneficial effect is, through setting up solar panel, can effectively utilize solar energy to power supply to the electro-magnet, the little energy is saved.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a limiting device of a crane trolley of the present invention;
fig. 2 is a schematic structural view of the mechanical brake device of the present invention;
fig. 3 is a schematic structural diagram of the first limiting device or the second limiting device of the present invention.
In the figure: 10. a track; 20. a main beam; 30. a vehicle baffle; 40a, a first limiting device; 40b and a second limiting device; 41. a housing; 42. a spring; 43. a limit switch trigger; 44. a limit switch; 50. a vehicle body; 51. a traveling wheel; 52. a solar panel; 61. an electromagnet; 70. a mechanical braking device; 71. a sliding sleeve; 72. a ram; 721. a slider; 722. a cushion pad; 73. a stopper; 74. a pressure spring; 75. a wire rope; 76. a first pulley; 77. a second pulley; 78. a brake shoe.
Detailed Description
Referring to fig. 1 to 3, the limiting device of the crane trolley of the present embodiment includes a track 10, a trolley body 50, an electromagnetic braking device, two sets of mechanical braking devices 70, and a solar panel 52;
specifically, the track 10 is arranged on a crane main beam 20; two ends of the main beam 20 are provided with a vehicle baffle 30; the front and rear sides of the upper end surface of the main beam 20 close to the car baffle 30 are provided with a first limiting device 40a and a second limiting device 40 b; the first limiting device 40a positioned on the same side is positioned far away from the corresponding car baffle 30 relative to the second limiting device 40 b;
more specifically, the first limiting device 40a and the second limiting device 40b each include a housing 41, a spring 42, a limiting switch trigger 43, and a limiting switch 44; the shell 41 is arranged on the main beam 20, and the spring 42 is vertically arranged inside the corresponding shell 41; the limit switch trigger 43 is arranged on the shell in a sliding manner and is arranged at the top of the spring 42; the limit switch 44 is arranged at the bottom of the shell; the limit switch trigger 43 is pressed by the wheels of the travelling crane, so that the limit switch trigger 43 compresses the spring 42 and is contacted with the limit switch 44;
more specifically, the limit switch trigger 43 has a hemispherical structure;
specifically, a driving motor (not shown) is arranged in the vehicle body 50, the bottom of the vehicle body 50 is provided with traveling wheels 51, and the driving motor drives the traveling wheels 51 to move; the traveling wheels 51 are arranged on the track 10 in a rolling manner; the driving motor is electrically connected with the first limiting device 40 a;
specifically, the electromagnetic braking device includes two electromagnets 61 and a strong magnet (not shown); the strong magnet is arranged in the vehicle body 50; the two electromagnets 61 are respectively arranged at two sides of the main beam 20, and each electromagnet 61 is positioned between the second limiting device 40b and the car baffle 30 at the corresponding side; each electromagnet 61 is electrically connected with the second limiting device 40b on the corresponding side;
specifically, the two sets of mechanical braking devices 70 are respectively disposed on two sides of the vehicle body 50; each mechanical braking device 70 comprises a sliding sleeve 71, a striker 72, a stopper 73, a pressure spring 74 and a steel wire 75;
the sliding sleeve 71 is horizontally arranged on one side of the vehicle body 50; one end of the striking rod 72 is slidably arranged at one side in the sliding sleeve 71, and the other end of the striking rod is exposed outside the sliding sleeve 71; the stop block 73 is arranged at the other side of the sliding sleeve 71; the pressure spring 74 is arranged in the sliding sleeve 71 and is positioned between the stop block 73 and the striker 72; one end of the steel wire rope 75 is connected to the striker 72; a pulley block is rotatably arranged on the vehicle body 50, and the steel wire rope 75 penetrates through the pulley block; the position of the vehicle body 50 corresponding to the driving wheels is hinged with a brake shoe 78, and the other end of the steel wire rope 75 is fixedly connected to the brake shoe 78;
more specifically, the mechanical braking device 70 further includes a slider 721; the sliding block 721 is arranged at one end of the plunger 72, and the plunger 72 is slidably arranged at one side in the sliding sleeve 71 through the sliding block 721;
more specifically, the other end of the striker 72 is provided with a cushion 722;
more specifically, the set of pulleys comprises a first pulley 76 and a second pulley 77; more specifically, the first pulley 76 and the second pulley 77 are both fixed pulleys;
more specifically, the brake shoe 78 has an arc structure;
specifically, the solar panel 52 is arranged on the vehicle body 50, and a storage battery is arranged in the solar panel 52; the solar panel 52 is electrically connected to the electromagnet 61.
The working process of the embodiment:
when the travelling wheels 51 trigger the first limiting devices 40a on the corresponding side, the driving motor is powered off, so that the travelling impact force of the trolley body 50 is reduced, the impact force on the trolley baffle 30 is reduced, the service life of equipment is prolonged, and the running stability and safety of the trolley are ensured; when the travelling wheels 51 trigger the second limiting device 40b, the electromagnet 61 on the corresponding side is started, and then the strong magnet on the vehicle body 50 is adsorbed, so that the vehicle body 50 stops moving; when the striker 72 of the car body 50 collides with the car baffle 30, the striker 72 drives the steel wire 75 to move, and then pulls the brake shoe 78, so that the brake shoe 78 presses the corresponding traveling wheel 51, and the car body 50 is assisted to stop moving.
Compared with the prior art, the utility model discloses a dual stop device carries out the spacing braking to the dolly, and braking effect is obvious, operates steadily, and fail safe nature is high.
The utility model discloses still have following beneficial effect:
the limit switch trigger is of a hemispherical structure, and has the advantages of simple structure, sensitive and reliable response and good limit effect;
by arranging the mechanical braking device, when the collision rod collides against the car baffle, the braking shoe can rotate and press the travelling wheel, so that the braking of the trolley is further assisted, and the mechanical braking device is simple in structure and reliable in work;
the bumper cushion is arranged on the collision rod, has good recovery capability and elasticity and strong buffering capability, can effectively relieve impact force generated by trolley collision, avoids trolley derailment accidents caused by trolley rebounding due to overlarge impact force, and protects the safety of equipment; the cushion may preferably be a urethane rubber cushion;
through setting up solar panel, can effectively utilize solar energy to supply power to the electro-magnet, save some energy.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. A limiting device of a crane trolley is characterized by comprising
The track is arranged on the crane main beam; two ends of the main beam are provided with car baffles; the front and rear sides of the upper end surface of the main beam are provided with a first limiting device and a second limiting device near the car baffle; the first limiting device positioned on the same side is positioned far away from the corresponding car baffle relative to the second limiting device;
the device comprises a vehicle body, wherein a driving motor is arranged in the vehicle body, the bottom of the vehicle body is provided with traveling wheels, and the driving motor drives the traveling wheels to move; the traveling wheels are arranged on the track in a rolling manner; the driving motor is electrically connected with the first limiting device;
the electromagnetic braking device comprises two electromagnets and a strong magnet; the strong magnet is arranged in the vehicle body; the two electromagnets are respectively arranged on two sides of the main beam, and each electromagnet is positioned between the second limiting device and the car stopping plate on the corresponding side; each electromagnet is electrically connected with the second limiting device on the corresponding side;
when the walking wheels trigger the first limiting device on the corresponding side, the driving motor is powered off; when the walking wheels trigger the second limiting device, the electromagnet on the corresponding side is started.
2. The crane trolley limiting device as claimed in claim 1, wherein the first limiting device and the second limiting device each comprise a housing, a spring, a limit switch trigger and a limit switch; the shell is arranged on the main beam, and the spring is vertically arranged in the corresponding shell; the limit switch trigger is arranged on the shell in a sliding mode and is arranged at the top of the spring; the limit switch is arranged at the bottom of the shell; the wheels of the travelling crane press the limit switch trigger, so that the limit switch trigger compresses the spring and is contacted with the limit switch.
3. The crane trolley spacing device of claim 2, wherein the limit switch trigger is of a hemispherical configuration.
4. The crane trolley limiting device as claimed in claim 3, further comprising two sets of mechanical braking devices, wherein the two sets of mechanical braking devices are respectively arranged on two sides of the trolley body; each mechanical braking device comprises
The sliding sleeve is horizontally arranged on one side of the vehicle body;
one end of the striking rod is arranged on one side in the sliding sleeve in a sliding mode, and the other end of the striking rod is exposed outside the sliding sleeve;
the stop block is arranged on the other side of the sliding sleeve;
the pressure spring is arranged in the sliding sleeve and is positioned between the stop block and the impact rod;
one end of the steel wire rope is connected to the collision rod; a pulley block is rotatably arranged on the vehicle body, and the steel wire rope penetrates through the pulley block; the position of the vehicle body corresponding to the driving wheels is hinged with a brake shoe, and the other end of the steel wire rope is fixedly connected to the brake shoe.
5. The crane trolley spacing device of claim 4, wherein the mechanical brake further comprises a slide; the sliding block is arranged at one end of the collision rod, and the collision rod is arranged on one side in the sliding sleeve in a sliding mode through the sliding block.
6. A crane trolley spacing device as claimed in claim 5, wherein the other end of the striker bar is provided with a bumper pad.
7. The crane trolley spacing device of claim 4, wherein the set of pulleys comprises a first pulley and a second pulley.
8. The crane trolley spacing device of claim 7, wherein the first and second sheaves are fixed sheaves.
9. The crane trolley spacing device of claim 4, wherein the brake shoe is arcuate in configuration.
10. The crane trolley limiting device as claimed in any one of claims 1 to 9, further comprising a solar panel; the solar panel is arranged on the vehicle body, and a storage battery is arranged in the solar panel; the solar panel is electrically connected with the electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022196681.7U CN213387473U (en) | 2020-09-29 | 2020-09-29 | Limiting device for crane trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022196681.7U CN213387473U (en) | 2020-09-29 | 2020-09-29 | Limiting device for crane trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213387473U true CN213387473U (en) | 2021-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022196681.7U Expired - Fee Related CN213387473U (en) | 2020-09-29 | 2020-09-29 | Limiting device for crane trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213387473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030989A (en) * | 2021-11-26 | 2022-02-11 | 江苏鼎盛重工有限公司 | Trolley limiting assembly for tire type container crane and using method thereof |
-
2020
- 2020-09-29 CN CN202022196681.7U patent/CN213387473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114030989A (en) * | 2021-11-26 | 2022-02-11 | 江苏鼎盛重工有限公司 | Trolley limiting assembly for tire type container crane and using method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210608 |
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| CF01 | Termination of patent right due to non-payment of annual fee |