CN220131698U - Lifting appliance and working machine - Google Patents

Abstract

The utility model relates to the technical field of equipment for hoisting forge pieces, and provides a lifting appliance and an operation machine, wherein the lifting appliance comprises: a cross beam; at least two lifting hooks which are connected to the cross beam and are distributed at intervals along the length direction of the cross beam, wherein the lifting hooks form a supporting area; and the hanging ring is connected to the cross beam and positioned in the supporting area. Through setting up the crossbeam and along at least two lifting hooks that crossbeam length direction interval was arranged, make every hoist form two at least strong points in the bottom of ring forging to can form the support to the subregion of ring forging bottom, two hoists can form two strong points in ring forging both sides, compare in traditional point location and lift by crane, for example two or multiple spot lifts by crane, more stable and safety, and two hoists need not strict symmetry simultaneously can guarantee the steady of work piece and lift by crane, and the operation is more convenient high-efficient.

Description

Lifting appliance and working machine

Technical Field

The utility model relates to the technical field of equipment for hoisting ring-forging pieces, in particular to a lifting appliance and an operation machine.

Background

The slewing bearing is widely used as a large-sized bearing capable of bearing comprehensive load in engineering machinery such as cranes, excavators and loaders, and in the fields of military equipment, transportation machinery, metallurgical machinery, scientific research equipment and the like. The slewing bearing mainly comprises an inner ring forging piece and an outer ring forging piece, the ring forging pieces are mainly transported through hoisting in the process of turning, and hoisting holes are not machined in forging blanks at the moment, so that hoisting and transporting cannot be carried out by using hoisting ring bolts.

In the related technology, the simplest method is to use a nylon sling to hoist the forging stock in a three-point winding mode, but the method is time-consuming and labor-consuming, the sling is easy to slip relative to the forging stock, potential safety hazards exist, and the normal production of workshops is affected; in addition, can also use the lifting hook to carry out three-point and lift by crane, but this kind of mode is higher to the symmetry requirement of lifting hook, is unfavorable for staff's hoist and mount operation, and is difficult to realize steady lifting by crane.

Disclosure of Invention

The utility model provides a lifting appliance and an operation machine, which are used for reducing the problems that the lifting operation of the existing ring forging is inconvenient and the stability of the lifted ring forging is difficult to ensure, and realizing the quick, stable and safe lifting of the ring forging.

The utility model provides a lifting appliance, which comprises:

a cross beam;

at least two lifting hooks are connected to the cross beam and are distributed at intervals along the length direction of the cross beam, and a plurality of lifting hooks form a supporting area;

and the hanging ring is connected to the cross beam and positioned in the supporting area.

According to the lifting appliance provided by the utility model, the lifting hooks are movably connected to the cross beam along the length direction of the cross beam, so that the lifting hooks are mutually close to or far away from each other;

and a positioning structure for positioning the hook on the cross beam.

According to the lifting appliance provided by the utility model, the positioning structure comprises external threads arranged on the cross beam and a thread bush arranged at the end part of the lifting hook;

the thread sleeve is provided with an internal thread and is in threaded connection with the cross beam.

According to the lifting appliance provided by the utility model, the longitudinal beam is fixedly connected to the cross beam, and the lifting hooks are uniformly distributed on two sides of the longitudinal beam; the hanging ring is arranged at one end of the longitudinal beam, which is away from the cross beam.

According to the lifting appliance provided by the utility model, the lifting ring is rotationally connected with the longitudinal beam, and the rotating shaft is parallel to the axis of the cross beam.

According to the lifting appliance provided by the utility model, the lifting ring and the longitudinal beam are rotatably and detachably connected through the connecting piece.

According to the lifting appliance provided by the utility model, one side of the lifting ring is U-shaped, the two sides of the opening are provided with the mounting parts, and the longitudinal beam is positioned between the two mounting parts; the connecting piece comprises a cylindrical pin, a first limiting part and a second limiting part;

the cylindrical pins sequentially penetrate through the mounting part and the longitudinal beam;

the first limiting part and the second limiting part are respectively arranged at two ends of the cylindrical pin to limit the cylindrical pin;

at least one of the first limiting part and the second limiting part is detachably connected with the cylindrical pin.

According to the lifting appliance provided by the utility model, one end of the cylindrical pin is integrally formed with the large end, so that the first limiting part is formed.

According to the lifting appliance provided by the utility model, the other end of the cylindrical pin is provided with the threads, and the second limiting part is a nut and is in threaded connection with the cylindrical pin.

According to the lifting appliance provided by the utility model, the lifting hook comprises a connecting part and a supporting part; one end of the connecting part is connected with the cross beam, and the supporting part is arranged at the other end of the connecting part and extends along the radial direction of the connecting part to form a cantilever structure.

According to the lifting appliance provided by the utility model, two lifting hooks are arranged, and the two lifting hooks are symmetrically arranged on two sides of the lifting ring.

The utility model also provides a working machine which comprises at least two lifting appliances.

According to the lifting appliance and the operation machine, the cross beam and the at least two lifting hooks which are distributed at intervals along the length direction of the cross beam are arranged, so that each lifting appliance forms at least two supporting points at the bottom of the ring forging piece, the partial area at the bottom of the ring forging piece can be supported, the two lifting appliances can form two supporting areas at two sides of the ring forging piece, compared with traditional point lifting, such as two-point or multi-point lifting, the lifting appliance is more stable and safer, meanwhile, the two lifting appliances can ensure stable lifting of workpieces without strict symmetry, and the operation is more convenient and efficient.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a spreader mating with a ring forging in accordance with an embodiment of the present utility model;

fig. 2 is a schematic structural view of a lifting appliance according to an embodiment of the present utility model.

Reference numerals:

1. a cross beam; 2. a lifting hook; 20. a connection part; 21. a support part; 3. a hanging ring; 30. a mounting part; 4. a longitudinal beam; 5. a connecting piece; 50. a cylindrical pin; 51. a first limit part; 52. a second limit part; 6. a positioning structure; 60. a thread sleeve; 7. and (5) a ring forging.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to facilitate understanding of the lifting appliance and the operation machine provided by the utility model, the application background is firstly described, and the ring forging piece of the slewing bearing is mainly transported by lifting in the process of turning, but the lifting transportation cannot be carried out by using a lifting ring bolt because of a non-machined lifting hole on the forging stock. The simplest method is to use a nylon sling to hoist the forging stock in a three-point winding mode, but the method is time-consuming and labor-consuming, the sling is easy to slip relative to the forging stock, and potential safety hazards exist; in addition, the lifting hook can be used for two-point or multi-point lifting, but the mode has higher requirement on the symmetry of the lifting hook, is not beneficial to the lifting operation of staff, and is difficult to realize stable lifting. Based on the above, the utility model provides a lifting appliance and an operation machine, which can realize quick and safe lifting of various ring forgings.

The spreader and work machine of the present utility model will be described below in connection with fig. 1-2.

Referring to fig. 1 and 2, a spreader mainly comprises a cross beam 1, a hook 2 and a lifting ring 3; the lifting hooks 2 are at least two, the lifting hooks 2 are connected to the cross beam 1 and are arranged at intervals along the length direction of the cross beam 1, each lifting hook 2 can form a supporting point position at the bottom of the ring forging 7, and the supporting points form a supporting area; the lifting ring 3 is connected to the cross beam 1 and is positioned in the middle of the supporting area, and the lifting ring 3 is mainly used for being connected with a hanging belt, a lifting rope and the like of lifting equipment, so that lifting of the ring forging 7 is realized.

In practical application, use two hoists to be symmetrical support in the bottom of ring forging 7, lift by crane and transport ring forging 7, every lifting hook 2 all can form the strong point in the bottom of ring forging 7 for every hoist forms two at least strong points in the bottom of ring forging 7, thereby can form the support to the subregion of ring forging 7 bottom, two hoists can form two strong points in ring forging 7 both sides, compare in traditional point location and lift by crane, for example two or multiple spot lifts by crane, more stable and safe, two hoists need not strict symmetry simultaneously can guarantee the steady of work piece and lift by crane, the operation is more convenient and efficient.

Specifically, the cross beam 1 is a main connecting and bearing part of the lifting appliance, and in order to ensure the whole bearing capacity of the lifting appliance, the cross beam 1 can be made of high-strength metal; the lifting hooks 2 are arranged at intervals, and the lifting rings 3 are arranged at the middle positions of the two lifting hooks 2 to ensure the stability of lifting.

Referring to fig. 2, the hook 2 includes a rod-shaped connection part 20 and a support part 21; wherein, one end of the connecting part 20 is connected with the beam 1, the supporting part 21 is arranged at the other end of the beam 1 and extends along the radial direction of the beam 1 to form a cantilever structure, and when the ring forging 7 is hoisted, the supporting part 21 is inserted into the bottom of the ring forging 7 to support the ring forging 7. The connecting portion 20 and the supporting portion 21 may be welded and fixed, or may be integrally formed, in this embodiment, the supporting portion 21 is integrally formed on the connecting portion 20, so as to improve the overall bearing capacity of the lifting hook 2, and the specific material of the lifting hook 2 may be selected according to actual requirements.

The longitudinal beam 4 is fixedly connected to the cross beam 1, the longitudinal beam 4 is positioned in the middle of the two lifting hooks 2, the longitudinal beam 4 and the cross beam 1 can be welded and fixed, and can be integrally formed, and the longitudinal beam can be specifically selected according to actual requirements; the rings 3 are arranged at one end of the longitudinal beam 4 far away from the cross beam 1, and the connection between the rings 3 and the cross beam 1 can be facilitated through the longitudinal beam 4.

Specifically, rings 3 rotate and connect on longeron 4 and pivot and the length direction parallel of crossbeam 1, so set up, can make lifting hook 2 rotate in a flexible way around rings 3, when hoist and mount ring forging 7, can overturn lifting hook 2 to suitable angle earlier, then insert lifting hook 2 to the bottom of ring forging 7 with this angle, make hoist and mount operation more convenient.

Specifically, the hanging ring 3 is connected to the cross beam 1 in a detachable way through the rotation of the connecting piece 5, so that the hanging ring 3 or the hanging hook 2 can be replaced conveniently. Wherein rings 3 one side opening forms to U type structure, and rings 3 open-ended both sides are provided with installation department 30 respectively, and installation department 30 can be in rings 3 through welded mode fixed connection, also can with rings 3 integrated into one piece, in this embodiment, installation department 30 integrated into one piece is on rings 3, is provided with the mounting hole on the installation department 30, and the through-hole has been seted up along radial and is located between two installation departments 30 to the one end that girder 4 kept away from crossbeam 1, and the mounting hole corresponds with the through-hole.

The connecting piece 5 comprises a cylindrical pin 50, a first limiting part 51 and a second limiting part 52; the cylindrical pins 50 sequentially penetrate through the mounting holes and the through holes, and the first limiting portions 51 and the second limiting portions 52 are respectively arranged at two ends of the cylindrical pins 50, so that the cylindrical pins 50 are limited, the cylindrical pins 50 are prevented from falling off, and the hanging rings 3 are connected with the longitudinal beams 4. At least one of the first limiting part 51 and the second limiting part 52 is detachably connected with the cylindrical pin 50, and the cylindrical pin 50 can be detached by detaching the first limiting part 51 and/or the second limiting part 52, so that the lifting ring 3 is separated from the longitudinal beam 4, and the subsequent replacement work is facilitated.

Specifically, one end of the cylindrical pin 50 is integrally formed with a large end, so that the first limiting portion 51 is formed, the other end of the cylindrical pin is provided with threads, the second limiting portion 52 is a nut, and after the cylindrical pin 50 sequentially passes through the mounting hole and the through hole, the connection between the lifting ring 3 and the longitudinal beam 4 is completed by connecting the second limiting portion 52 to the cylindrical pin 50 through threads.

In another embodiment, the first limiting portion 51 and the second limiting portion 52 may be connected to the cylindrical pin 50 in a threaded connection manner.

In another embodiment, one end of the cylindrical pin 50 is provided with a large end, forming a first limiting portion 51, and the other end is provided with a pin hole along the radial direction, and the second limiting portion 52 may be a pin, so that the pin is inserted into the pin hole to realize the limiting effect. The pin may be a bayonet, a threaded pin, or the like.

In another embodiment, one of the first limiting portion 51 and the second limiting portion 52 may be screwed to the cylindrical pin 50 by using a nut, and the other one is inserted into a pin hole on the cylindrical pin 50 by using a pin.

Referring to fig. 2, the hook 2 is movably connected to the cross beam 1 along the length direction of the cross beam 1, and a positioning structure 6 for positioning the hook 2 on the cross beam 1 is provided between the hook 2 and the cross beam 1. Through removing lifting hook 2, can make be close to each other or keep away from between the lifting hook 2 to change the width between two lifting hooks 2, so that the position of adjustment supporting point, both can make the hoist form more stable support to ring forging 7, can also be applicable to the lifting by crane of different diameter ring forging 7, improved the commonality of hoist.

Specifically, the positioning structure 6 includes an external thread provided on the cross beam 1, and a thread bush 60 provided at one end of the connecting portion 20 away from the supporting portion 21; the threaded sleeve 60 is provided with an internal thread and is screwed with the cross beam 1. The external threads may be distributed on the whole cross beam 1, or may be disposed on a part of the cross beam 1, and may specifically be selected according to a required adjustment range, in this embodiment, the external threads are distributed on the whole cross beam 1. The threaded sleeve 60 may be fixedly connected to the connecting portion 20 by welding, or may be integrally formed with the connecting portion 20, and in this embodiment, the threaded sleeve 60 is integrally formed on the connecting portion 20.

During adjustment, only need encircle crossbeam 1 rotatory lifting hook 2, make thread bush 60 rotate around crossbeam 1, can adjust and fix a position lifting hook 2's position, through two lifting hook 2 pivoted number of turns of control, the travel distance of two lifting hooks 2 of control that can be accurate, ensure that rings 3 are located two lifting hook 2's intermediate position all the time, guarantee the stationarity of lifting by crane.

In another embodiment, a lock nut may be screwed on the beam 1 near each thread bush 60, and after the hook 2 is adjusted to a proper width, the lock nut is screwed and abutted against the thread bush 60, so that the thread bush 60 is pre-tightened, and the hook 2 can be more stably connected to the beam 1.

In another embodiment, the positioning structure 6 includes a jackscrew and a sliding sleeve disposed at one end of the connecting portion 20 away from the supporting portion 21, the sliding sleeve is sleeved on the beam 1 and is in sliding fit with the beam 1, and the jackscrew is in threaded connection with the sliding sleeve and is in tight fit with the beam 1. In this way, the width between the two hooks 2 can be adjusted by sliding the hooks 2 along the length direction of the cross beam 1 and tightening with a jackscrew. In addition, can also set up the cross section of crossbeam 1 into the polygon to carry out the polygon spacing to the sleeve that slides, avoid lifting hook 2 to rotate around crossbeam 1, make lifting hook 2 can be more stable connect on crossbeam 1.

In another embodiment, a reinforcing structure, such as a reinforcing plate or a reinforcing rib, may be arranged on the lifting hook 2, between the lifting hook 2 and the cross beam 1, and between the cross beam 1 and the longitudinal beam 4 according to actual requirements, so as to improve the bearing capacity and the deformation resistance of the lifting appliance.

It will be appreciated that an anti-slip structure, such as a roughened layer, anti-slip pad, etc., may be provided on the support portion 21 of the hook 2, reducing the problem of slippage of the ring forging 7 on the support portion 21 during lifting, thereby further improving the stability of lifting,

it will be appreciated that, according to practical requirements, the lifting hooks 2 may be provided in two or more ways, which may be uniformly or unevenly provided on both sides of the lifting ring 3, and no matter how the lifting hooks 2 are arranged, only the lifting ring 3 needs to be located between the supporting areas formed by the plurality of lifting hooks 2.

The working machine provided by the utility model is described below, and the working machine described below and the lifting appliance described above can be referred to correspondingly.

A work machine comprising two symmetrically arranged spreaders as described above, wherein the work machine comprises, but is not limited to, a crane, a hoist or the like.

The novel innovation point of the utility model is that: through setting up crossbeam 1 and along two at least lifting hooks 2 of crossbeam 1 length direction interval arrangement, make every hoist form two at least strong points in the bottom of ring forging 7 to can form the support to the subregion of ring forging 7 bottom, two hoists can form two strong points in ring forging 7 both sides, compare in traditional point location and lift by crane, for example two or multiple spot lifts by crane, more stable and safe, and two hoists need not strict symmetry simultaneously can guarantee the steady of work piece and lift by crane, and the operation is more convenient high-efficient.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A spreader, comprising:

a cross beam (1);

at least two lifting hooks (2) are connected to the cross beam (1) and are distributed at intervals along the length direction of the cross beam (1), and a plurality of lifting hooks (2) form a supporting area;

and the hanging ring (3) is connected to the cross beam (1) and is positioned in the supporting area.

2. A lifting appliance according to claim 1, characterized in that the hooks (2) are movably connected to the cross beam (1) in the length direction of the cross beam (1) so that the hooks (2) are moved closer to or farther from each other;

also comprises a positioning structure (6) for positioning the lifting hook (2) on the cross beam (1).

3. The spreader of claim 2, wherein the positioning structure (6) comprises an external thread provided on the cross beam (1) and a threaded sleeve (60) provided at the end of the hook (2);

the thread bush (60) is provided with internal threads and is in threaded connection with the cross beam (1).

4. A lifting appliance according to any one of claims 1-3, characterized in that a longitudinal beam (4) is fixedly connected to the cross beam (1), and a plurality of lifting hooks (2) are uniformly distributed on both sides of the longitudinal beam (4); the hanging ring (3) is arranged at one end of the longitudinal beam (4) deviating from the cross beam (1).

5. The spreader according to claim 4, characterized in that the lifting ring (3) is rotatably connected to the longitudinal beam (4) with a rotation axis parallel to the axis of the cross beam (1).

6. The spreader of claim 5, wherein the lifting ring (3) is rotatably and detachably connected to the longitudinal beam (4) by means of a connecting piece (5).

7. The lifting appliance according to claim 6, characterized in that the lifting eye (3) is U-shaped with one side opening and two sides of the opening are formed with mounting parts (30), the longitudinal beam (4) being located between the two mounting parts (30); the connecting piece (5) comprises a cylindrical pin (50), a first limiting part (51) and a second limiting part (52);

the cylindrical pins (50) sequentially penetrate through the mounting part (30) and the longitudinal beam (4);

the first limiting part (51) and the second limiting part (52) are respectively arranged at two ends of the cylindrical pin (50) to limit the cylindrical pin (50);

at least one of the first limiting part (51) and the second limiting part (52) is detachably connected with the cylindrical pin (50).

8. The spreader of claim 7, wherein one end of the cylindrical pin (50) is integrally formed with a large end, forming the first limiting portion (51).

9. The lifting appliance according to claim 8, wherein the other end of the cylindrical pin (50) is provided with threads, and the second limiting part (52) is a nut and is in threaded connection with the cylindrical pin (50).

10. A work machine comprising at least two spreaders as claimed in any one of claims 1 to 9.