CN216272651U - Lifting appliance and lifting point transverse moving mechanism thereof - Google Patents
Lifting appliance and lifting point transverse moving mechanism thereof Download PDFInfo
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- CN216272651U CN216272651U CN202122977840.1U CN202122977840U CN216272651U CN 216272651 U CN216272651 U CN 216272651U CN 202122977840 U CN202122977840 U CN 202122977840U CN 216272651 U CN216272651 U CN 216272651U
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- cross arm
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Abstract
The utility model discloses a hoisting point cross-sliding mechanism which comprises a base, a cross arm, a hoisting mechanism and a driving mechanism. The cross arm is installed on the base, and the cross arm forms the contained angle with the girder, and hoisting machine constructs slidable ground and installs on the cross arm. The driving mechanism is installed on the cross arm and used for driving the hoisting mechanism to move along the axial direction of the cross arm so as to change the position of the hoisting mechanism on the cross arm. The utility model also discloses a straight lifting appliance which comprises a main beam and the lifting point traversing mechanism, wherein the base is detachably arranged on the main beam. The lifting appliance and the lifting point transverse moving mechanism thereof can realize the adjustment of the transverse position of the lifting point, solve the problems of difficult transformation, high cost and complex process of lifting equipment, and have flexible structure, convenient manufacture and simple application.
Description
Technical Field
The utility model relates to the technical field of hoisting and hoisting, in particular to a lifting appliance and a lifting point transverse moving mechanism thereof.
Background
At present, box girder erection becomes an indispensable important link for bridge construction, and the construction difficulty is higher and higher. After the main cable of the upper structure of the suspension bridge is erected, a box girder needs to be erected, and a lifting appliance is usually adopted to hoist and erect the box girder.
Lifting mechanisms and lifting appliances of lifting appliances such as existing cross-cable lifting machines and reverse lifting equipment are fixed and cannot move transversely, temporary lifting points of box girders of different suspension bridges are designed differently, so that the lifting appliances such as the cross-cable lifting machines and the reverse lifting equipment cannot be used universally, the main structure of the transformation equipment is large in difficulty, high in cost and long in construction period, and the equipment is still required to be transformed when being dispatched to a next suspension bridge for use, and the universality is poor.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a lifting appliance and a lifting point traversing mechanism thereof, aiming at the problem that the lifting point of the existing lifting appliance cannot move transversely and the lifting appliance cannot be used universally.
A suspension point traversing mechanism, comprising:
the base is used for mounting the main beam;
the cross arm is arranged on the base, and an included angle is formed between the cross arm and the main beam;
the hoisting mechanism is slidably arranged on the cross arm; and
and the driving mechanism is arranged on the cross arm and used for driving the hoisting mechanism to move along the axial direction of the cross arm so as to change the position of the hoisting mechanism on the cross arm.
In one embodiment, the hoisting mechanism comprises a sliding seat, a connecting assembly and a lifting lug, the sliding seat is slidably sleeved on the cross arm, the connecting assembly is connected with the sliding seat and the lifting lug, and the lifting lug is used for lifting heavy objects.
In one embodiment, the connecting assembly includes a connecting ring and a pulley, the sliding seat is provided with a sliding groove, the connecting ring is sleeved in the sliding groove, the connecting ring is sleeved outside the pulley, and the lifting lug is mounted on the pulley.
In one embodiment, two sets of the sliding grooves are arranged on the sliding seat at intervals, two sets of the connecting rings are arranged on the connecting ring, the two sets of the connecting rings are respectively sleeved in the two sets of the sliding grooves, the two sets of the connecting rings are sleeved outside the pulley at intervals, and the two sets of the connecting rings are parallel to each other.
In one embodiment, the driving mechanism comprises a hand wheel and a screw rod, the cross arm is provided with a bearing seat, the screw rod is rotatably mounted on the bearing seat, the sliding seat is provided with a screw hole in threaded connection with the screw rod, and the hand wheel is connected with the screw rod to drive the screw rod to rotate.
In one embodiment, the distance between the end surface of the sliding groove and the screw rod is smaller than the diameter of the section of the connecting ring.
In one embodiment, a reinforcing rib plate is arranged in the cross arm, and the reinforcing rib plate is parallel to the lifting direction of the lifting mechanism.
In one embodiment, the lifting mechanism further comprises a shaft sleeve, the shaft sleeve is detachably locked on the cross arm, and the shaft sleeve is abutted to the lifting mechanism so as to lock the position of the lifting mechanism on the cross arm.
A spreader, comprising:
a main beam;
according to the lifting point cross sliding mechanism, the base is detachably mounted on the main beam.
In one embodiment, the connecting device further comprises a connecting seat and a connecting rod, wherein the connecting seat is slidably mounted on the main beam, and the connecting rod is hinged with the connecting seat.
The lifting appliance and the lifting point transverse moving mechanism thereof at least have the following advantages:
the driving mechanism can drive the hoisting mechanism to move axially along the cross arm so as to change the position of the hoisting mechanism on the cross arm, realize the adjustment of the transverse position of a hoisting point, solve the problems of difficult transformation, high cost and complex process of hoisting equipment, and have the advantages of flexible structure, convenient manufacture and simple application.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
FIG. 1 is a schematic structural view of a spreader in one embodiment;
FIG. 2 is a top view of the spreader of FIG. 1;
fig. 3 is a side view of the spreader shown in the drawings.
Reference numerals:
10-main beam, 12-connecting seat, 14-connecting rod, 16-guide rod, 18-hydraulic rod, 20-lifting point transverse moving mechanism, 21-base, 22-cross arm, 222-bearing seat, 23-lifting mechanism, 231-sliding seat, 232-connecting assembly, 2321-connecting ring, 2322-pulley, 233-lifting lug, 24-driving mechanism, 242-lead screw and 244-hand wheel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather construed as embodying the utility model in accordance with the principles of the utility model.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Referring to fig. 1, a spreader in one embodiment includes a main beam 10 and a suspension point traversing mechanism 20, wherein the suspension point traversing mechanism 20 is installed on the main beam 10, and the suspension point traversing mechanism 20 is used to adjust a transverse position of a suspension point to adapt to different hoisted weights.
In one embodiment, the spreader further comprises connecting sockets 12 and connecting rods 14, the connecting sockets 12 being slidably mounted on the main beams 10, the connecting rods 14 being hinged to the connecting sockets 12, the connecting rods 14 being adapted to be connected to a hoisting device. The connecting seats 12 can slide relative to the main beam 10, and the position of the main beam 10 to be lifted can be adjusted to adapt to lifting different types of heavy objects, such as heavy objects with shifted gravity centers. The connecting rod 14 can rotate relative to the connecting seat 12, and can adapt to the swinging of the main beam 10 caused by heavy objects in the hoisting process.
On the basis of the above embodiment, further, the hanger further includes a guide rod 16 and a hydraulic rod 18, the guide rod 16 is installed on the side wall of the main beam 10, the connecting seat 12 is slidably sleeved on the guide rod 16, and the guide rod 16 can guide the sliding of the connecting seat 12, so as to ensure the stability of the sliding of the connecting seat 12. A hydraulic lever 18 is mounted on the main beam 10, the hydraulic lever 18 being used to drive the connecting sockets 12 to slide on the main beam 10.
The suspension point traversing mechanism 20 is mounted on the main beam 10. In one embodiment, two sets of the suspension point traversing mechanisms 20 are provided, and the two sets of the suspension point traversing mechanisms 20 are respectively installed at two ends of the main beam 10. Specifically, the hoisting point traversing mechanism 20 comprises a base 21, a cross arm 22, a hoisting mechanism 23 and a driving mechanism 24.
The bases 21 are detachably mounted on the main beam 10, and in the actual hoisting process, the positions of the bases 21 of the two groups of hoisting point traversing mechanisms 20 on the main beam 10 are determined according to the longitudinal distance of the designed hoisting position of the heavy object. The cross arm 22 is installed on the base 21, and the cross arm 22 forms an included angle with the main beam 10.
In one embodiment, cross arms 22 are perpendicular to main beam 10. Be equipped with deep floor in the cross arm 22, deep floor is parallel with the direction of lifting by crane of hoisting machine 23, and deep floor can increase the rigidity and the intensity of cross arm 22. The flange plates outside the two sides of the web plate of the main beam 10 are cut off, the length of the cantilever of the cross arm 22 is reduced, and the sliding of the blocking hoisting mechanism 23 is prevented.
The hoist 23 is slidably mounted on the cross arm 22. In one embodiment, each point traversing mechanism 20 has two sling mechanisms 23, and the two sling mechanisms 23 are located at each end of the cross-arm 22.
Referring to fig. 3, in particular, the hoisting mechanism 23 includes a sliding seat 231, a connecting component 232 and a lifting lug 233. The sliding base 231 is slidably sleeved on the cross arm 22, the connecting assembly 232 connects the sliding base 231 and the lifting lug 233, and the lifting lug 233 is used for lifting heavy objects.
In one embodiment, the reinforcing rib plate protrudes from the cross arm 22, and the reinforcing rib plate can be used as a track for the sliding of the sliding seat 231 in the transverse direction, and the roughness of the outer surface of the reinforcing rib plate is high. The connecting assembly 232 includes a connecting ring 2321 and a pulley 2322, the sliding seat 231 is provided with a sliding slot, the connecting ring 2321 is sleeved in the sliding slot, the connecting ring 2321 is sleeved outside the pulley 2322, and the lifting lug 233 is mounted on the pulley 2322. The pulley 2322 may reduce the forces experienced by the linkage assembly 232, reducing the material requirements of the linkage assembly 232.
On the basis of the above embodiment, two sets of sliding grooves are arranged on the sliding base 231 at intervals, two sets of connecting rings 2321 are arranged, the two sets of connecting rings 2321 are respectively sleeved in the two sets of sliding grooves, the two sets of connecting rings 2321 are alternately sleeved outside the pulley 2322, and the two sets of connecting rings 2321 are parallel to each other. The slot position of the sliding groove is determined by the axial dimension specifications of the connecting ring 2321, the pulley 2322 and the lifting lug 233, so that the center line of the sliding seat 231 is coincided with the center line of the corresponding pulley 2322 in the hoisting state.
In one embodiment, the connection ring 2321 is a steel wire rope, and the steel wire rope is connected end to form a ring. It is understood that, in other embodiments, the connection ring 2321 may be made of other materials as long as the strength of the connection ring 2321 meets the requirement.
It is understood that in other embodiments, the structure of the hoisting mechanism 23 can be specifically arranged according to the requirement, for example, the hoisting mechanism 23 can be a lifting rope, a lifting hook, or the like.
The driving mechanism 24 is installed on the cross arm 22, and the driving mechanism 24 is used for driving the hoisting mechanism 23 to move along the axial direction of the cross arm 22 so as to change the position of the hoisting mechanism 23 on the cross arm 22. In one embodiment, each of the hoisting point traversing mechanisms 20 is provided with two sets of driving mechanisms 24, and the two sets of driving mechanisms 24 are used for respectively driving the two sets of hoisting mechanisms 23 to traverse on the cross arm 22.
In one embodiment, the driving mechanism 24 includes a screw 242 and a hand wheel 244, the cross arm 22 is provided with a bearing seat 222, the screw 242 is rotatably mounted on the bearing seat 222, the sliding seat 231 is provided with a screw hole in threaded connection with the screw 242, the hand wheel 244 is connected with the screw 242, the hand wheel 244 can drive the screw 242 to rotate, and the sliding seat 231 can be driven to slide on the cross arm 22 by the rotation of the screw 242.
On the basis of the above embodiment, further, the screw rod 242 adopts a high-strength screw rod, and the effective stroke between the screw rod 242 and the cross arm 22 is not less than the change interval of the designed hoisting mechanism 23. The bearing seat hole on the bearing seat 222 and the screw hole on the sliding seat 231 have high coaxiality requirement, so that the sliding seat 231 is prevented from sliding and blocking, and the screw rod 242 is prevented from deforming. The thread pitch precision requirement of the screw rod 242 is high, and the sliding distance of the sliding seat 231 can be matched with the change interval of the designed hoisting mechanism 23.
In one embodiment, the distance between the end surface of the sliding slot and the lead screw 242 is smaller than the diameter of the cross section of the connection ring 2321, so as to prevent the connection ring 2321 from jumping out of the sliding slot. Two bearing seats 222 are arranged on the cross arm 22 at intervals, the sliding seat 231 is located between the two bearing seats 222, and two ends of the screw rod 242 are respectively and rotatably mounted on the two bearing seats 222. The drive mechanism 24 further includes a retainer ring (not shown) mounted to the end of the screw 242 remote from the handwheel 244 for preventing the screw 242 from being separated from the bearing block 222.
It is understood that in other embodiments, the driving mechanism 24 may be other mechanisms capable of driving the slide seat 231 to move linearly, such as a hydraulic cylinder, an electric push rod, etc.
In one embodiment, the hoisting point traversing mechanism 20 further comprises a shaft sleeve detachably locked on the cross arm 22, and the shaft sleeve can be abutted against the hoisting mechanism 23 to lock the position of the hoisting mechanism 23 on the cross arm 22, so as to prevent the sliding seat 231 from transversely displacing and increase the hoisting stability.
The lifting appliance and the lifting point cross-moving mechanism 20 thereof have the advantages that the driving mechanism 24 can drive the lifting mechanism 23 to move along the axial direction of the cross arm 22 so as to change the position of the lifting mechanism 23 on the cross arm 22, realize the adjustment of the transverse position of the lifting point, solve the problems of difficult transformation, high cost and complex process of lifting equipment, and have flexible structure, convenient manufacture and simple application.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. A hoisting point traversing mechanism, comprising:
the base is arranged on the main beam;
the cross arm is arranged on the base, and an included angle is formed between the cross arm and the main beam;
the hoisting mechanism is slidably arranged on the cross arm; and
and the driving mechanism is arranged on the cross arm and used for driving the hoisting mechanism to move along the axial direction of the cross arm so as to change the position of the hoisting mechanism on the cross arm.
2. The hoisting point traversing mechanism according to claim 1, wherein the hoisting mechanism comprises a sliding base, a connecting assembly and a lifting lug, the sliding base is slidably sleeved on the cross arm, the connecting assembly connects the sliding base and the lifting lug, and the lifting lug is used for lifting heavy objects.
3. The hoisting point traversing mechanism according to claim 2, wherein the connecting assembly comprises a connecting ring and a pulley, the sliding base is provided with a sliding groove, the connecting ring is sleeved in the sliding groove, the connecting ring is sleeved outside the pulley, and the lifting lug is mounted on the pulley.
4. The suspension point traverse mechanism of claim 3, wherein two sets of the sliding grooves are formed on the sliding base at intervals, two sets of the connecting rings are respectively sleeved in the two sets of the sliding grooves, the two sets of the connecting rings are sleeved outside the pulley at intervals, and the two sets of the connecting rings are parallel to each other.
5. The hoisting point cross-sliding mechanism according to claim 3, wherein the driving mechanism comprises a hand wheel and a screw rod, the cross arm is provided with a bearing seat, the screw rod is rotatably mounted on the bearing seat, the sliding seat is provided with a screw hole in threaded connection with the screw rod, and the hand wheel is connected with the screw rod to drive the screw rod to rotate.
6. The suspension point traverse mechanism of claim 5, wherein the distance between the end surface of the slide groove and the lead screw is smaller than the diameter of the connecting ring section.
7. The hoisting point cross-sliding mechanism according to claim 1, wherein a reinforcing rib plate is arranged in the cross arm, and the reinforcing rib plate is parallel to the lifting direction of the lifting mechanism.
8. The hoisting point traversing mechanism according to claim 1, further comprising a bushing, wherein the bushing detachably locks onto the cross-arm, the bushing abuts against the hoisting mechanism to lock the position of the hoisting mechanism on the cross-arm.
9. A spreader, comprising:
a main beam;
the suspension point traversing mechanism according to any of claims 1-8, wherein a base is removably mounted to the main beam.
10. The spreader of claim 9, further comprising a connecting seat slidably mounted on the main beam and a connecting rod hinged to the connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122977840.1U CN216272651U (en) | 2021-11-30 | 2021-11-30 | Lifting appliance and lifting point transverse moving mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122977840.1U CN216272651U (en) | 2021-11-30 | 2021-11-30 | Lifting appliance and lifting point transverse moving mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216272651U true CN216272651U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122977840.1U Active CN216272651U (en) | 2021-11-30 | 2021-11-30 | Lifting appliance and lifting point transverse moving mechanism thereof |
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| Country | Link |
|---|---|
| CN (1) | CN216272651U (en) |
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2021
- 2021-11-30 CN CN202122977840.1U patent/CN216272651U/en active Active
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