CN213923753U - Load-bearing device and bridge crane - Google Patents
Load-bearing device and bridge crane Download PDFInfo
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- CN213923753U CN213923753U CN202022961036.XU CN202022961036U CN213923753U CN 213923753 U CN213923753 U CN 213923753U CN 202022961036 U CN202022961036 U CN 202022961036U CN 213923753 U CN213923753 U CN 213923753U
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Abstract
The utility model discloses a load-bearing device and bridge crane relates to overhead traveling crane jacking equipment technical field. The bearing device comprises a bearing part, a lifting rope, a buffering assembly and an auxiliary rope. One end of the lifting rope is fixedly connected with the top end of the bearing part, and the other end of the lifting rope is connected with the first lifting mechanism; the buffer assembly comprises an installation part, an elastic part and a support part, the support part is connected to the installation part in a sliding mode along the vertical direction, the lifting rope is fixedly connected with the support part, and two ends of the elastic part are respectively connected with the support part and the installation part; one end of the auxiliary rope is fixedly connected with the mounting part, the other end of the auxiliary rope is connected with the second hoisting mechanism, when the bearing part is in no-load state, the auxiliary rope is in a stretched state, and the hoisting rope is in a loose state. This load-bearing device can cushion the power of the production in the twinkling of an eye that lifts by crane the heavy object, prevents that the lifting rope fracture, and supplementary rope can play the effect of secondary protection after the lifting rope fracture.
Description
Technical Field
The utility model relates to a crown block jacking equipment technical field especially relates to a bearing device and bridge crane.
Background
The overhead travelling crane is a special name of a bridge crane, is hoisting equipment which is transversely erected above workshops, warehouses and stockyards for hoisting materials, and has two ends located on high cement columns or metal supports and is shaped like a bridge. The bridge of the bridge crane runs longitudinally along the rails laid on the two side elevated frames without being hindered by ground equipment. The overhead traveling crane utilizes the lifting rope to connect the bearing hook and promotes the goods, and the lifting rope is in lax state before promoting the goods, hangs when the goods and begins to promote in the bearing hook, and the lifting rope becomes tensioning state from lax state in the twinkling of an eye, and the power that produces in the twinkling of an eye is greater than the gravity of heavy object far away, not only causes wearing and tearing to the bearing hook, and leads to the lifting rope fracture easily, takes place the incident.
In view of the above problems, it is necessary to develop a load-bearing device to solve the problem that the force generated at the moment when the lifting rope starts to lift the heavy object is much larger than the gravity of the heavy object, which causes the breakage of the lifting rope.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a load-bearing device and bridge crane.
To achieve the purpose, the utility model adopts the following technical proposal:
a load bearing device for a bridge crane, the bridge crane including a bridge frame, a first lifting mechanism and a second lifting mechanism, the load bearing device comprising:
a bearing member;
one end of the lifting rope is fixedly connected with the top end of the bearing part, and the other end of the lifting rope is connected with the first lifting mechanism;
the buffer assembly comprises a mounting part, an elastic part and a supporting part, the supporting part is connected to the mounting part in a sliding mode along the vertical direction, the lifting rope is fixedly connected with the supporting part, and two ends of the elastic part are respectively connected with the supporting part and the mounting part;
and one end of the auxiliary rope is fixedly connected with the mounting part, the other end of the auxiliary rope is connected with the second hoisting mechanism, when the bearing part is in no-load state, the auxiliary rope is in a stretched state, and the hoisting rope is in a loose state.
Preferably, the installed part is the baffle-box, support piece along vertical direction slip set up in the inside of baffle-box, the elastic component both ends respectively with support piece's upper surface with the top surface inner wall fixed connection of baffle-box, the lifting rope runs through the bottom surface and the top surface of baffle-box.
Preferably, the buffer assembly further comprises:
the sliding blocks are arranged at two ends of the supporting piece;
the slide rail, along vertical direction set up in the inner wall of baffle-box, the slider with slide rail sliding connection.
Preferably, the top surface and the bottom surface of the buffer box are respectively provided with a sleeve, a through hole is formed in the middle of each sleeve, and the lifting rope penetrates through the two sleeves through the through holes to be fixedly connected with the top end of the bearing part.
Preferably, the buffer tank includes:
the box door is rotatably arranged on the side wall of the buffer box and used for opening or closing the buffer box;
and the screw is detachably and fixedly connected with the box door and the buffer box.
Preferably, the elastic members are symmetrically arranged with the lifting rope as a center.
Preferably, the load bearing member comprises a load bearing hook.
Preferably, the bearing part further comprises a limiting clamping block, the top end and the tail end of the bearing hook are arranged at intervals to form an opening, one end of the limiting clamping block is rotatably connected with the tail end of the bearing hook, and the other end of the limiting clamping block is detachably connected with the top end of the bearing hook.
Preferably, the auxiliary rope is an elastic rope.
A bridge crane comprises the bridge, the first hoisting mechanism and the second hoisting mechanism which are arranged on the bridge, and the load-bearing device.
The utility model has the advantages that:
the utility model provides a load-bearing device and bridge crane. When the load-bearing device is in no-load state, the auxiliary rope is in a vertical state, and the lifting rope is in a loose state. When the load-bearing part bears a heavy object and begins to lift, the support part begins to move downwards under the action of the lifting rope, the elastic part is driven by the support part to deform to provide buffer force, until the lifting rope is completely tightened, all parts of the whole device stop relative movement, and the heavy object is lifted. In the process, part of the tension force of the lifting rope is converted into the elastic force of the elastic element, and the force is gradually increased along with the movement of the supporting element, so that the breakage of the lifting rope is avoided. In the hoisting process, if the hoisting rope is suddenly broken, the auxiliary rope is tightened, and the safety accident caused by sudden falling of the heavy object is prevented.
Drawings
Fig. 1 is a schematic structural view of a load bearing device provided by the present invention;
fig. 2 is a schematic structural diagram of the buffer box provided by the present invention.
1. Lifting a lifting rope; 2. a buffer assembly; 21. a buffer tank; 22. an elastic member; 23. a support member; 24. a slider; 25. a slide rail; 3. an auxiliary rope; 4. a sleeve; 41. a through hole; 5. a bearing member; 51. a load bearing hook; 52. a limiting clamping block; 53. fastening a bolt; 54. a threaded hole; 6. a box door; 7. and (4) screws.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in direct contact with the second feature but being in contact with the second feature by another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment provides a bridge crane which comprises a bridge frame, a first hoisting mechanism, a second hoisting mechanism and a load-bearing device. As shown in fig. 1, the load bearing device comprises a load bearing member 5, a lifting rope 1, a buffer assembly 2 and an auxiliary rope 3. One end of the lifting rope 1 is fixedly connected with the top end of the bearing part 5, and the other end of the lifting rope is connected with a first lifting mechanism on the overhead travelling crane and used for lifting a heavy object together with the bearing part 5. The cushion assembly 2 includes a mounting member, an elastic member 22 and a supporting member 23. The lifting rope 1 penetrates through the mounting piece and is fixedly connected with the supporting piece 23, and the elastic piece 22 is fixedly arranged between the supporting piece 23 and the mounting piece. The auxiliary rope 3 is fixedly connected with the mounting part, when the bearing part 5 is in no-load state, the auxiliary rope 3 is in a stretched state, and the lifting rope 1 is in a loose state.
In the production process, the overhead travelling crane is often required to be used for hoisting a heavy object, the hoisting rope of the overhead travelling crane is generally a steel wire rope, and the steel wire rope basically cannot stretch after the load bearing is tightened, so that the force generated in the moment when the steel wire rope is tightened is far greater than the gravity of the heavy object, and the hoisting rope is easily broken to cause safety accidents. The buffer assembly 2 in this embodiment can reduce the instantaneous force well, and protect the steel wire rope and the bearing member 5. The working principle is as follows: when the heavy object is lifted, the lifting rope 1 begins to be stretched under the action of the gravity of the heavy object, the support piece 23 is driven to move downwards relative to the installation piece, the elastic piece 22 is stretched, and after the lifting rope 1 is completely stretched, the heavy object begins to be lifted. In this process, part of the tension of the hoisting rope 1 is converted into the elastic force of the elastic element 22, and this force is gradually increased with the movement of the support element 23, avoiding the breaking of the hoisting rope 1. The auxiliary rope 3 can protect the bearing device for the second time after the lifting rope 1 is broken, and the safety accident caused by the fact that a heavy object is directly smashed on the ground is prevented.
Because the heavy object below the bearing device is heavy, the bearing device is easy to sway left and right in the hoisting process, so that the deformation of the support piece 23 to the elastic piece 22 is always changed, and the service life of the elastic piece 22 is greatly reduced.
In order to solve the above problem, the mounting member in this embodiment is the buffer box 21, the supporting member 23 can slide in the buffer box 21 in the vertical direction, two ends of the elastic member 22 are respectively fixedly connected with the upper surface of the supporting member 23 and the inner wall of the top surface of the buffer box 21, and the lifting rope 1 penetrates through the bottom surface and the top surface of the buffer box 21. The buffer box 21 protects the supporting piece 23 and the elastic piece 22 inside, the shaking of the heavy object only enables the buffer box 21 and the lifting rope 1 to shake, the deformation amount of the elastic piece 22 is guaranteed to be at a stable value, and the service life of the elastic piece is prolonged.
In order to further improve the stability of the supporting member 23 and the elastic member 22, in this embodiment, the buffering assembly 2 further includes a sliding block 24 and a sliding rail 25. The sliders 24 are disposed at both ends of the support 23, the slide rails 25 are disposed on the inner wall of the buffer box 21 in the vertical direction, and the sliders 24 can slide in the slide rails 25.
Furthermore, the top surface and the bottom surface of the buffer box 21 are respectively provided with a sleeve 4, the middle of each sleeve 4 is provided with a through hole 41, and the lifting rope 1 passes through the two sleeves 4 to be fixedly connected with the top end of the bearing part 5.
Since the hoisting rope 1 is changed from a slack state to a tight state at the beginning of hoisting, and it slides relative to the buffer tank 21, the friction with the buffer tank 21 will greatly reduce the service life of the hoisting rope 1. In this embodiment, the sleeve 4 is provided at the position where the lifting rope 1 and the buffer box 21 rub against each other, so that the abrasion of the buffer box 21 to the lifting rope 1 can be reduced.
Further, a plurality of elastic members 22 are symmetrically arranged with respect to the lifting rope 1 as a center.
The plurality of symmetrical elastic members 22 can keep the support member 23 in a horizontal state all the time during movement, thereby improving the stability of the inside of the buffer mechanism.
Preferably, the bearing member 5 is a bearing hook 51.
In consideration of convenience, the weight is lifted by the load-bearing hook 51, and the weight can be conveniently hung on the load-bearing hook 51 and/or taken down from the load-bearing hook 51, so that the efficiency is improved.
In the process of lifting the heavy object, the load bearing device shakes, so that the heavy object easily slides out of the load bearing hook 51, and serious safety accidents are caused.
In order to prevent the above safety accidents, in the present embodiment, the top end and the tail end of the bearing hook 51 are spaced apart to form an opening, the tail end of the bearing hook 51 is rotatably provided with a limiting block 52, and the limiting block 52 is detachably connected to the top end of the bearing hook 51.
The top end of the bearing hook 51 is provided with a threaded hole 54, the tail end of one side, away from the bearing hook 51, of the limiting clamping block 52 is provided with a fastening bolt 53, and the limiting clamping block 52 is detachably and fixedly connected with the threaded hole 54 at the top end of the bearing hook 51 through the fastening bolt 53. The limiting fixture block 52 can close the opening of the bearing hook 51 to form a closed loop, so that the heavy object cannot be separated from the bearing hook 51.
In other embodiments, a pin, a quick clamp, or the like may be used instead of the fastening bolt 53, as long as the end of the side of the limiting fixture block 52 away from the bearing hook 51 is fixedly connected with the top end of the bearing hook 51 and is convenient to detach.
Preferably, the end of the auxiliary rope 3 remote from the damping assembly 2 is connected to a second hoisting mechanism.
The second hoisting mechanism on the overhead traveling crane can lift auxiliary rope 3, after the heavy object is lifted, auxiliary rope 3 is in a loose state, if lifting rope 1 is broken, the bearing device is hammered to the ground from a higher position, the speed is high, the bearing device stops falling when auxiliary rope 3 is stretched, auxiliary rope 3 can be broken, or the overhead traveling crane is damaged, and the effect of secondary protection on the bearing device cannot be well achieved. And the second hoisting mechanism can adjust the auxiliary rope 3 according to the height of the heavy object, so that the auxiliary rope 3 is always in a state close to tension, if the hoisting rope 1 is broken, the bearing device can hardly fall down, and the auxiliary rope 3 can well play a role in secondary protection at the moment.
In order to be able to better protect the heavy devices for a second time, the auxiliary ropes 3 are elastic ropes in this embodiment. After the lifting rope 1 is broken, under the action of the load-bearing device, the elastic rope converts a part of tension into elastic force through extension, and the breakage is avoided.
As shown in fig. 2, it can be understood that the buffer box 21 includes the door 6 and the screw 7. The door 6 is rotatably disposed on a side wall of the buffer box 21, and is used to open or close the buffer box 21. The bolt 7 can detachably and fixedly connect the box door 6 and the buffer box 21.
In order to facilitate disassembly and maintenance, the box door 6 is arranged on one side wall of the buffer box 21, and the inner structure can be disassembled and maintained only by opening the box door 6, so that the operation is convenient. The box door 6 is fixed by the screw 7, so that the box door 6 cannot be opened without any reason.
It is to be understood that the door 6 is provided with a handle in order to open and close the door 6.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A load bearing device for a bridge crane, the bridge crane comprising a bridge frame, a first lifting mechanism and a second lifting mechanism, the load bearing device comprising:
a bearing member (5);
one end of the lifting rope (1) is fixedly connected with the top end of the bearing part (5), and the other end of the lifting rope is connected with the first lifting mechanism;
the buffer assembly (2) comprises a mounting part, an elastic part (22) and a supporting part (23), the supporting part (23) is connected to the mounting part in a sliding mode along the vertical direction, the lifting rope (1) is fixedly connected with the supporting part (23), and two ends of the elastic part (22) are respectively connected with the supporting part (23) and the mounting part;
and one end of the auxiliary rope (3) is fixedly connected with the mounting part, the other end of the auxiliary rope is connected with the second hoisting mechanism, when the bearing part (5) is in no-load state, the auxiliary rope (3) is in a stretched state, and the hoisting rope (1) is in a loose state.
2. The load-bearing device according to claim 1, wherein the mounting member is a buffer box (21), the supporting member (23) is slidably disposed in the buffer box (21) along a vertical direction, two ends of the elastic member (22) are fixedly connected to an upper surface of the supporting member (23) and an inner wall of a top surface of the buffer box (21), respectively, and the lifting rope (1) penetrates through a bottom surface and a top surface of the buffer box (21).
3. The load bearing device according to claim 2, wherein said dampening assembly (2) further comprises:
sliders (24) provided at both ends of the support member (23);
slide rail (25), set up in along vertical direction in the inner wall of baffle-box (21), slider (24) with slide rail (25) sliding connection.
4. The load-bearing device according to claim 2, characterized in that the top surface and the bottom surface of the buffer box (21) are respectively provided with a sleeve (4), a through hole (41) is arranged in the middle of each sleeve (4), and the lifting rope (1) passes through the two sleeves (4) through the through holes (41) and is fixedly connected with the top end of the bearing part (5).
5. The load carrying device according to claim 2, wherein said buffer tank (21) comprises:
the box door (6) is rotatably arranged on the side wall of the buffer box (21) and is used for opening or closing the buffer box (21);
and the screw (7) is detachably and fixedly connected with the box door (6) and the buffer box (21).
6. The load carrier according to claim 1, wherein said elastic member (22) is provided in plurality in symmetrical relation with respect to said lifting rope (1).
7. The load bearing device according to claim 1, wherein the load bearing member (5) comprises a load bearing hook (51).
8. The load-bearing device according to claim 7, characterized in that the load-bearing member (5) further comprises a limiting block (52), the top end and the tail end of the load-bearing hook (51) are arranged at intervals to form an opening, one end of the limiting block (52) is rotatably connected with the tail end of the load-bearing hook (51), and the other end of the limiting block is detachably connected with the top end of the load-bearing hook (51).
9. The load carrying device according to claim 1, wherein the auxiliary rope (3) is an elastic rope.
10. Bridge crane comprising said bridge and said first and second hoisting means arranged thereon, characterized in that it further comprises a load bearing device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961036.XU CN213923753U (en) | 2020-12-09 | 2020-12-09 | Load-bearing device and bridge crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961036.XU CN213923753U (en) | 2020-12-09 | 2020-12-09 | Load-bearing device and bridge crane |
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| Publication Number | Publication Date |
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| CN213923753U true CN213923753U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022961036.XU Active CN213923753U (en) | 2020-12-09 | 2020-12-09 | Load-bearing device and bridge crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860166A (en) * | 2021-11-10 | 2021-12-31 | 安徽春华智能科技有限公司 | Anti-swing device for crane lifting appliance |
-
2020
- 2020-12-09 CN CN202022961036.XU patent/CN213923753U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860166A (en) * | 2021-11-10 | 2021-12-31 | 安徽春华智能科技有限公司 | Anti-swing device for crane lifting appliance |
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