CN219009718U

CN219009718U - Annular lifting appliance with universal inner ring and outer ring

Info

Publication number: CN219009718U
Application number: CN202223221284.6U
Authority: CN
Inventors: 孙凯; 张斌辉; 张文秀; 徐亚波; 张磊; 谢家欣; 肖焱; 陈玮伦; 罗刚
Original assignee: Envision Energy Co Ltd
Current assignee: Envision Energy Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-12
Anticipated expiration: 2032-12-01

Abstract

The utility model relates to an inner and outer ring universal type annular lifting appliance which comprises an annular main body, a plurality of screw rod units arranged on the annular main body and lifting legs connected with the screw rod units and driven to move back and forth by the screw rod units, wherein outer ring lifting points and inner ring lifting points are respectively arranged on the outer side and the inner side of the bottom of each lifting leg, all outer ring lifting points are combined to achieve the purpose of hooking an outer ring workpiece from the inner side, and all inner ring lifting points are combined to achieve the purpose of hooking an inner ring workpiece from the outer side. Compared with the prior art, the annular lifting tool has the advantages that the quick diameter change of the inner ring and the outer ring can be realized to realize general lifting, the structure of the annular lifting tool is stable, and the quick unhooking of a workpiece can be realized after the lifting is finished without damaging the workpiece.

Description

Annular lifting appliance with universal inner ring and outer ring

Technical Field

The utility model relates to the field of lifting appliances, in particular to an inner and outer ring universal type annular lifting appliance.

Background

In the process of producing and assembling heavy equipment, parts such as an inner bearing, an outer bearing, a piston ring, a tension ring and the like are required to be quickly hoisted, but the specifications of the parts are different, so that a general hoisting tool is needed. However, the lifting appliance in the prior art has the following disadvantages: (1) the common use of parts of different diameters cannot be realized; (2) the diameter cannot be changed quickly and accurately; (3) The lifting appliance and the lifting object are connected by adopting flexible hook, so that the problem of unstable connection exists; and (4) no unhooking limiting device.

Patent cn202220737963.X discloses a variable diameter hanger for chemical vapor deposition furnace, which adjusts the diameter size of a variable diameter disk by setting a variable diameter rod to be suitable for products of different diameter sizes. Patent CN201220524469.1 discloses an annular workpiece sling, which adopts the form of an adjustable suspension arm and a vertical lifting hook, and the vertical lifting hook can be freely adjusted to a proper size on a cantilever according to the diameter of a workpiece during operation and can be fixed by a locking pin.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide an inner-outer ring universal type annular lifting appliance.

The aim of the utility model can be achieved by the following technical scheme:

the technical scheme of the utility model is to provide an inner and outer ring universal type annular lifting appliance, which comprises an annular main body, a plurality of screw rod units arranged on the annular main body, and lifting legs connected with the screw rod units and driven by the screw rod units to move back and forth, wherein the outer side and the inner side of the bottom of each lifting leg are respectively provided with an outer ring lifting point and an inner ring lifting point, all outer ring lifting points are combined to achieve the purpose of hooking an outer ring workpiece from the inner side, and all inner ring lifting points are combined to achieve the purpose of hooking an inner ring workpiece from the outer side.

Further, a through hole is formed in the side wall of the annular main body, the screw rod unit comprises a screw rod and a screw rod support connected with the screw rod and the lifting legs, the screw rod sequentially penetrates through the screw rod nut and the hole, two ends of the screw rod are rotatably connected with the screw rod support, and the screw rod support is fixedly connected with the lifting legs.

Furthermore, pressing blocks are further arranged on two opposite sides of the hole, the screw rod nuts are clamped and fixed between the pressing blocks, and the screw rod moves in a self-rotating type straight line under the action of the screw rod nuts.

Further, the bottom end of the annular main body is further provided with a plurality of track grooves corresponding to the positions of the holes, and the hoisting legs comprise first hoisting parts which are in sliding connection with the track grooves.

Further, a positioning scale is further arranged on the first hoisting portion and used for positioning the relative position of the hoisting legs and the annular main body, and the screw rod unit is fixed on the first hoisting portion.

Further, the hoisting leg further comprises a second hoisting part perpendicular to the first hoisting part, the outer ring hoisting point is fixed on the outer side of the bottom of the second hoisting part, the inner ring hoisting seat is further fixed on the inner side of the bottom of the second hoisting part, and the inner ring hoisting point is arranged on the inner ring hoisting seat.

Furthermore, the inner ring hanging seat is connected with the second hanging part through a pin shaft, a spring pin for preventing the pin shaft from falling off is further arranged in the pin shaft, at least two pin shafts are arranged, and when only one pin shaft is left after the inner ring hanging seat is removed, the inner ring hanging seat is rotated and folded around the pin shaft, so that an inner ring workpiece on an inner ring hanging point falls off.

Further, a hand wheel is arranged at one end of the screw rod outside the annular main body, an inner ring limiting unit is arranged at one end of the first lifting part inside the annular main body, the inner ring limiting unit comprises sliding blocks, grooves are formed in the two opposite sides of the sliding blocks, the centers of the sliding blocks are of a cavity structure, a channel is further formed in one end of the first lifting part inside the annular main body, the sliding blocks are embedded in the channel through the grooves in the two sides of the sliding blocks, and the sliding blocks move along the direction of the channel.

Further, the inner ring limiting unit further comprises a limiting screw rod, one end of the limiting screw rod penetrates through the cavity, and the other end of the limiting screw rod is provided with a handle.

Furthermore, the inner wall of the cavity is also provided with threads for adjusting the relative position of the limit screw rod and the sliding block.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model can realize the general hoisting of the inner ring and the outer ring, avoid frequently replacing hoisting equipment, reduce the purchasing cost of the hoisting equipment and improve the operation efficiency.

(2) According to the utility model, the screw rod unit drives the lifting legs to move along the direction of the track groove, so that the quick diameter change is realized, and the lifting of workpieces with different sizes is satisfied.

(3) The inner ring limiting unit can effectively prevent the inner ring workpiece from unhooking in the hoisting process, and ensures the safety.

(4) The inner ring hanging seat can be rotated and folded, so that the inner ring hanging point and the inner ring workpiece can be quickly separated.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic view of the annular main body structure of the present utility model.

Fig. 3 is a schematic view of the structure of the lifting leg of the present utility model.

Fig. 4 is a schematic structural view of a screw unit according to the present utility model.

Fig. 5 is a schematic structural diagram of an inner ring limiting unit according to the present utility model.

The figures are identified as follows:

1. an annular body; 1-1, lifting a point; 1-2, a track groove; 2. a screw unit; 2-1, a hand wheel; 2-2, a screw rod support; 2-3, a screw rod nut; 2-4 screw rods; 2-5, briquetting; 3. an inner ring limiting unit; 3-1, a handle; 3-2, sliding blocks; 3-3, limiting the screw rod; 4. a hanging seat leg; 4-1, outer ring hanging points; 4-2, positioning the staff gauge; 4-3, a first hoisting part; 4-4, a second hoisting part; 5. an inner ring hanging seat; 5-1, an inner ring hanging point; 5-2, a pin shaft.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples.

In the following embodiments, unless otherwise specified, functional components or structures are indicated as conventional components or structures adopted in the art to achieve the corresponding functions.

Example 1

As shown in fig. 1, the annular lifting appliance for the inner and outer rings comprises an annular main body 1, three groups of screw rod units 2 arranged on the annular main body 1, lifting legs 4 connected with the screw rod units 2 and driven to move back and forth by the screw rod units, and an inner ring limiting unit 3 arranged on the lifting legs 4 and used for limiting the swinging of an inner ring workpiece.

As shown in fig. 2, a through hole is formed in the side wall of the annular main body 1, a track groove 1-2 corresponding to the hole is formed in the bottom end of the annular main body 1, an upper hanging point 1-1 is further formed in the annular main body 1, and the whole annular lifting appliance is lifted and transferred to a designated position by a lifting machine through passing a steel rope through the upper hanging point 1-1.

As shown in fig. 3, the hoist leg 4 includes a first hoist part 4-3 and a second hoist part 4-4 perpendicular to the first hoist part 4-3. The first hoisting part 4-3 is in sliding connection with the track groove 1-2, the first hoisting part 4-3 is also provided with a positioning scale 4-2, and the positioning scale 4-2 is used for accurately positioning the positions of the hoisting legs 4 and the annular main body 1 so as to finish accurate adjustment of the positions; an outer ring hanging point 4-1 for hanging an outer ring workpiece from the inner side is welded on the outer side of the bottom of the second hanging part 4-4, the inner side of the bottom of the second hanging part 4-4 is connected with an inner ring hanging seat 5 through a pin shaft 5-2, the inner ring hanging seat 5 is provided with an inner ring hanging point 5-1 for hanging an inner ring workpiece from the outer side, all the outer ring hanging points 4-1 are combined to achieve hanging the outer ring workpiece from the inner side, and all the inner ring hanging points 5-1 are combined to achieve hanging the inner ring workpiece from the outer side. The pin shaft 5-2 is also internally provided with a spring pin for preventing the pin shaft 5-2 from falling off, the pin shaft 5-2 is at least provided with two, and when only one pin shaft 5-2 is left after the pin shaft 5-2 is dismantled, the inner ring hanging seat 5 is rotationally folded around the pin shaft 5-2, so that an inner ring workpiece on the inner ring hanging point 5-1 falls off.

As shown in fig. 4, the screw unit 2 includes a screw rod 2-4 driving the lifting leg 4 to move along the track groove 1-2 direction, and a screw rod support 2-2 connecting the screw rod 2-4 and the first lifting part 4-3, wherein the screw rod 2-4 sequentially passes through the screw rod nut 2-3 and the hole, two ends of the screw rod 2-4 are rotatably connected with the screw rod support 2-2, and the screw rod support 2-2 is fixedly connected with the first lifting part 4-3. The two opposite sides of the hole are also provided with pressing blocks 2-5, a screw rod nut 2-3 is clamped and fixed between the pressing blocks 2-5, and the screw rod 2-4 moves linearly in a spinning mode under the action of the screw rod nut 2-3, so that the position of the hoisting leg 4 is driven to move back and forth, and the diameter changing of the outer ring hoisting point 4-1 and the inner ring hoisting point 5-1 is realized. A hand wheel 2-1 is arranged at one end of a screw rod 2-4 at the outer side of the annular main body 1, and the first hoisting part 4-3 is driven to move back and forth in the track groove 1-2 by rotating the screw rod 2-4 through the hand wheel 2-1. The screw rods 2-4 also have a self-locking function, so that the hoisting stability can be ensured.

As shown in fig. 5, the inner ring limiting unit 3 includes a slider 3-2 and a limiting screw rod 3-3, which are provided with grooves on opposite sides and have a hollow structure at the center. A channel is arranged at one end of the first hoisting part 4-3 at the inner side of the annular main body 1, and the sliding block 3-2 is embedded in the channel through grooves at two sides, so that the sliding block 3-2 moves along the direction of the channel. One end of the limit screw rod 3-3 penetrates through the cavity, and the other end is provided with a handle 3-1. The inner wall of the cavity is also provided with threads, the relative position of the limiting screw rod 3-3 and the sliding block 3-2 is adjusted and fastened by rotating the limiting screw rod 3-3 through the handle 3-1, and the limiting screw rod is used for limiting the movement of the inner ring workpiece and preventing the inner ring workpiece from being separated from the inner ring hanging point 5-1 due to clamping stagnation in the hoisting process.

The utility model has the following action principle: according to the sizes of the outer ring workpiece and the inner ring workpiece, the screw rod unit 2 drives the lifting legs 4 to move along the direction of the track grooves 1-2, so that the diameter between the outer ring lifting points 4-1 and the diameter between the inner ring lifting points 5-1 on the three groups of lifting legs 4 are changed, and the lifting of the outer ring workpiece or the lifting of the inner ring workpiece is met. The inner ring hanging seat 5 is connected with the hanging leg 4 through at least two detachable pin shafts 5-2, and when only one pin shaft 5-2 is left in the dismantling process, the inner ring hanging seat 5 can be folded in a rotary mode around the pin shaft 5-2, so that an inner ring workpiece is quickly separated from the inner ring hanging point 5-1. According to the size of the inner ring workpiece, the position of the sliding block 3-2 in the inner ring limiting unit 3 in the channel at one end of the first hoisting part 4-3 and the relative position of the limiting screw rod 3-3 and the sliding block 3-2 are adjusted so as to limit the falling-off condition of the inner ring workpiece in the hoisting process.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.

Claims

1. The utility model provides an annular hoist of general type of inner and outer circle, its characterized in that includes annular main part (1), installs a plurality of lead screw units (2) on annular main part (1), and with lead screw unit (2) are connected and by its hoist and mount leg (4) that drive round trip movement, the outside and the inboard of hoist and mount leg (4) bottom are equipped with outer lane hoisting point (4-1) and inner circle hoisting point (5-1) respectively, and all outer lane hoisting point (4-1) make up and realize from the inboard outer lane work piece of hanging, and all inner circle hoisting point (5-1) then make up and realize from the outside and hook the inner circle work piece.

2. The annular lifting appliance with the universal inner and outer rings according to claim 1, wherein a through hole is formed in the side wall of the annular main body (1), the screw rod unit (2) comprises a screw rod (2-4) and a screw rod support (2-2) connected with the screw rod (2-4) and the lifting leg (4), the screw rod (2-4) sequentially penetrates through a screw rod nut (2-3) and the hole, two ends of the screw rod (2-4) are rotatably connected with the screw rod support (2-2), and the screw rod support (2-2) is fixedly connected with the lifting leg (4).

3. The annular lifting appliance with the universal inner and outer rings according to claim 2, wherein pressing blocks (2-5) are further arranged on two opposite sides of the hole, screw nuts (2-3) are clamped and fixed between the pressing blocks (2-5), and the screw rods (2-4) move in a spin type straight line under the action of the screw nuts (2-3).

4. The annular lifting appliance with the universal inner and outer rings according to claim 2, wherein the bottom end of the annular main body (1) is further provided with a plurality of track grooves (1-2) corresponding to the positions of the holes, the lifting legs (4) comprise first lifting parts (4-3), and the first lifting parts (4-3) are in sliding connection with the track grooves (1-2).

5. The annular lifting appliance with the universal inner and outer rings according to claim 4, wherein the first lifting part (4-3) is further provided with a positioning scale (4-2) for positioning the relative position of the lifting leg (4) and the annular main body (1), and the screw rod unit (2) is fixed on the first lifting part (4-3).

6. The annular lifting appliance with the universal inner and outer rings according to claim 4, wherein the lifting legs (4) further comprise second lifting parts (4-4) perpendicular to the first lifting parts (4-3), the outer ring lifting points (4-1) are fixed on the outer sides of the bottoms of the second lifting parts (4-4), inner ring lifting seats (5) are further fixed on the inner sides of the bottoms of the second lifting parts (4-4), and the inner ring lifting points (5-1) are arranged on the inner ring lifting seats (5).

7. The inner ring and outer ring universal type annular lifting appliance according to claim 6, wherein the inner ring lifting seat (5) is connected with the second lifting part (4-4) through a pin shaft (5-2), a spring pin for preventing the pin shaft (5-2) from falling off is further arranged in the pin shaft (5-2), at least two pin shafts (5-2) are arranged, and when only one pin shaft (5-2) is left after the inner ring lifting seat (5) is removed, the inner ring lifting seat (5) is rotationally folded around the pin shaft (5-2) so that an inner ring workpiece on an inner ring lifting point (5-1) falls off.

8. The inner and outer ring universal type annular lifting appliance according to claim 4, wherein a hand wheel (201) is arranged at one end of the screw rod (2-4) at the outer side of the annular main body (1), an inner ring limiting unit (3) is arranged at one end of the first lifting part (4-3) at the inner side of the annular main body (1), the inner ring limiting unit (3) comprises sliding blocks (3-2) which are provided with grooves at two opposite sides and have a cavity structure at the center, a channel is further arranged at one end of the first lifting part (4-3) at the inner side of the annular main body (1), and the sliding blocks (3-2) are embedded in the channel through the grooves at two sides, so that the sliding blocks (3-2) move along the direction of the channel.

9. The annular lifting appliance with the universal inner ring and outer ring according to claim 8, wherein the inner ring limiting unit (3) further comprises a limiting screw rod (3-3), one end of the limiting screw rod (3-3) penetrates through the cavity, and the other end of the limiting screw rod is provided with a handle (301).

10. The annular lifting appliance with the universal inner and outer rings according to claim 9, wherein the inner wall of the cavity is further provided with threads for adjusting the relative positions of the limit screw (3-3) and the sliding block (3-2).