CN211078223U - Height limiter and grab bucket device - Google Patents
Height limiter and grab bucket device Download PDFInfo
- Publication number
- CN211078223U CN211078223U CN201921707237.8U CN201921707237U CN211078223U CN 211078223 U CN211078223 U CN 211078223U CN 201921707237 U CN201921707237 U CN 201921707237U CN 211078223 U CN211078223 U CN 211078223U
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- movable rod
- grab bucket
- wire rope
- height limiter
- lift wire
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Abstract
The utility model relates to a safety protection equipment technical field, more specifically say, it relates to a height limiter and grab bucket device, and its technical scheme main points are: including the strutting arrangement with dolly roof beam fixed connection, the stop device who is connected with two lift wire rope, the one end swing joint that strutting arrangement kept away from the dolly roof beam has the movable rod that the level set up, the movable rod sets up between two lift wire rope, the one end that strutting arrangement was kept away from to the movable rod is connected with the stay cord, the one end that the movable rod was kept away from to the stay cord is provided with travel switch, and through fixed stop device that sets up on two lift wire rope at the grab bucket, the movable rod is set up between two lift wire rope for swing amplitude is big when ascending no matter the grab bucket, can both guarantee that stop device can touch the movable rod, causes the switch to jump electricity, thereby realizes protect function. The utility model has the advantages of simple structure, stable work, high precision and strong reliability.
Description
Technical Field
The utility model relates to a safety protection equipment technical field, more specifically say, it relates to a height limiter and grab bucket device.
Background
The existing height limiter used on hoisting equipment generally utilizes an original transmission system to drive an auxiliary mechanism to touch an electrical switch to realize power failure, so that the transmission system stops acting to protect the equipment. The height limiter is mainly in the form of a weight limiter. Wherein the hammer type height limiter working principle: when the weight drops due to dead weight, the limit switch is in a closed state of switching on a power supply, and when the lifting appliance rises to a limit position, the weight is supported, so that the normally closed contact of the limit switch is disconnected, and the lifting appliance stops rising to play a role in protection.
The problems existing in the prior art are as follows: the lifting appliance is easy to swing in the lifting process, and if the swing amplitude exceeds the size limit of the movable rod, the lifting appliance cannot effectively touch the travel switch, so that the protection effect is lost, and equipment accidents such as top impact and the like are caused.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a height limiter and grab bucket device has simple structure, and work is steady, and the precision is high, the strong advantage of reliability.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a height limiter, includes the strutting arrangement with dolly roof beam fixed connection, the stop device who is connected with two lift wire rope, the one end swing joint that strutting arrangement kept away from the dolly roof beam has the movable rod that the level set up, the movable rod sets up between two lift wire rope, the one end that strutting arrangement was kept away from to the movable rod is connected with the stay cord, the one end that the movable rod was kept away from to the stay cord is provided with travel switch.
Through adopting above-mentioned technical scheme, fixedly setting up blocking device on two lift wire rope of grab bucket, the movable rod is set up between two lift wire rope for swing amplitude is big when not considering that the grab bucket rises, can both guarantee that blocking device can touch the movable rod, causes the switch to jump electricity, thereby realizes protect function.
In one embodiment: the support means is a rigid rod.
By adopting the technical scheme, the unfavorable condition that the flexible connection causes large-amplitude swing is avoided, and favorable conditions are created for ensuring that the grab bucket reliably touches the movable rod when rising.
In one embodiment: the blocking device is a chain.
Through adopting above-mentioned technical scheme, the dead weight of chain can make it form the trough type naturally, is favorable to forming the face contact with the automatic centering of movable rod, also helps reducing the horizontal hunting of movable rod, reduces impact and the wearing and tearing to the hank axle.
In one embodiment: the movable rod is hinged with the supporting device.
Through adopting above-mentioned technical scheme, articulated simple structure, easy dismounting ensures that the movable rod can rotate around strutting arrangement, causes the development to jump electricity.
The utility model also provides a grab bucket device, the grab bucket device includes as above the height limiter.
Through adopting above-mentioned technical scheme, be applied to the height limiter on the grab bucket device, improve its security performance.
To sum up, the utility model discloses following beneficial effect has:
through fixed blocking device that sets up on two lift wire rope at the grab bucket, the movable rod is set up between two lift wire rope for swing amplitude is big when not matter the grab bucket rises, can both guarantee that blocking device can touch the movable rod, causes the switch to jump electricity, thereby realizes protect function. The height limiter is simple in structure, stable in work, high in precision and strong in reliability.
Drawings
FIG. 1 is a schematic view of a height limiter according to the present embodiment;
FIG. 2 is a schematic view of a height limiter according to the present embodiment;
fig. 3 is a schematic structural diagram of a height limiter according to the present embodiment.
In the figure: 1. a chain; 11. a blocking device; 2. a movable rod; 3. a travel switch; 4. pulling a rope; 5. lifting the steel wire rope; 6. opening and closing the steel wire rope; 7. a trolley beam; 8. a hinge shaft; 9. a rigid rod; 91. a support device; 10. a grab bucket.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
A height limiter is shown in figures 1 to 3 and comprises a supporting device 91 fixedly connected with a trolley beam 7 and a blocking device 11 connected with two lifting steel wire ropes 5, wherein one end, far away from the trolley beam 7, of the supporting device 91 is movably connected with a movable rod 2 horizontally arranged, the movable rod 2 is arranged between the two lifting steel wire ropes 5, one end, far away from the supporting device 91, of the movable rod 2 is connected with a pull rope 4, and one end, far away from the movable rod 2, of the pull rope 4 is provided with a travel switch 3.
Through adopting above-mentioned technical scheme, fixedly on two lift wire rope 5 of grab bucket 10 set up blocking device 11, movable rod 2 is set up between two lift wire rope 5 for no matter how big is the amplitude of oscillation when grab bucket 10 rises, can both guarantee that blocking device 11 can touch movable rod 2, cause the switch to jump electricity, thereby realize protect function.
The support means 91 is a rigid rod 9.
By adopting the technical scheme, the unfavorable condition that the flexible connection causes large-amplitude swing is avoided, and favorable conditions are created for ensuring that the grab bucket 10 reliably touches the movable rod 2 when rising.
The blocking device 11 is a chain 1.
Through adopting above-mentioned technical scheme, the dead weight of chain 1 can make it form the trough type naturally, is favorable to forming the face contact with the automatic centering of movable rod 2, also helps reducing the horizontal hunting of movable rod 2, reduces impact and the wearing and tearing to the hank axle.
The movable rod 2 is hinged with the supporting device 91 through a hinge shaft 8.
Through adopting above-mentioned technical scheme, articulated simple structure, easy dismounting ensures that movable rod 2 can rotate around strutting arrangement 91, causes the development to jump electricity.
The utility model also provides a grab bucket device, grab bucket device includes as above high limiter.
Through adopting above-mentioned technical scheme, be applied to the height limiter on the grab bucket device, improve its security performance.
The implementation principle of the embodiment is as follows: the grab bucket 10 is connected with a lifting steel wire rope 5 and an opening and closing steel wire rope 6, the chains 1 are fixed on the two lifting steel wire ropes 5 of the grab bucket 10, and the dead weight of the chains 1 can enable the chains to naturally form a trough shape, so that the chains are beneficial to automatic centering and surface contact with the movable rod 2, the left and right swinging of the movable rod 2 is also facilitated to be reduced, and the impact and the abrasion on the hinge shaft 8 are reduced. The movable rod 2 is arranged between the two lifting steel wire ropes 5, so that no matter how large the swing amplitude of the grab bucket 10 rises, the movable rod 2 can be reliably touched by the small chain 1, the point A is the normal working position of the movable rod 2 as shown in fig. 1, the point K is the normal grabbing and feeding position of the grab bucket 10, if the grab bucket 10 continues to rise, the movable rod 2 is touched, the movable rod 2 moves to the point B from the point A around the hinge shaft 8, the travel switch 3 is triggered to jump, and the equipment accident that people are injured by the high-altitude falling of the whole grab bucket 10 after the grab bucket 10 continues to rise and then collides a crane girder or breaks the steel wire ropes is prevented. The device has the advantages of simple structure, stable work, high precision and strong reliability.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A height limiter, characterized by: the device comprises a supporting device fixedly connected with the trolley beam and a blocking device connected with two lifting steel wire ropes, wherein the supporting device is far away from one end of the trolley beam and is movably connected with a movable rod horizontally arranged, the movable rod is arranged between the two lifting steel wire ropes, one end of the movable rod far away from the supporting device is connected with a pull rope, and one end of the pull rope far away from the movable rod is provided with a travel switch.
2. A height limiter according to claim 1 wherein: the support means is a rigid rod.
3. A height limiter according to claim 1 wherein: the blocking device is a chain.
4. A height limiter according to claim 1 wherein: the movable rod is hinged with the supporting device.
5. A grab bucket apparatus, characterized by: the grapple attachment includes a height limiter as claimed in any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921707237.8U CN211078223U (en) | 2019-10-12 | 2019-10-12 | Height limiter and grab bucket device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921707237.8U CN211078223U (en) | 2019-10-12 | 2019-10-12 | Height limiter and grab bucket device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211078223U true CN211078223U (en) | 2020-07-24 |
Family
ID=71641005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921707237.8U Active CN211078223U (en) | 2019-10-12 | 2019-10-12 | Height limiter and grab bucket device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211078223U (en) |
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2019
- 2019-10-12 CN CN201921707237.8U patent/CN211078223U/en active Active
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