CN114671337A

CN114671337A - Lifting appliance

Info

Publication number: CN114671337A
Application number: CN202210201484.0A
Authority: CN
Inventors: 农昌涌; 蒋宁浩; 熊武辉; 邱旻; 何雨; 黄子腾; 饶淋
Original assignee: Dongfeng Liuzhou Motor Co Ltd
Current assignee: Dongfeng Liuzhou Motor Co Ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-28
Anticipated expiration: 2042-03-02
Also published as: CN114671337B

Abstract

The invention provides a lifting appliance, which is used for lifting hole workpieces and comprises a base, a clamping arm and a lifting driving part, wherein the base is provided with a movable channel extending along the vertical direction; the clamping arm is arranged on the base and comprises a clamping part, the clamping part is used for extending into the hole of the workpiece and moves along the radial direction of the movable channel so as to have a working position for clamping the inner wall of the hole of the workpiece; the movable passage is located along the activity of going up and down to the hoist and mount drive division, and the hoist and mount drive division is including being hoist and mount portion and the drive division of connecting from top to bottom, and hoist and mount portion is used for butt joint hoisting equipment, and when the drive division moved up, the activity of drive card holding portion to operating position. When the lifting appliance provided by the invention is used for lifting hole workpieces, the clamping part firstly extends into the hole of the workpiece, then the lifting equipment is controlled to lift the lifting part upwards, the driving part synchronously moves upwards along with the lifting part, so that the clamping part is driven to move along the radial direction of the movable channel, the clamping part clamps the inner wall of the hole of the workpiece, the hole workpieces are lifted, the operation is convenient and fast, and the labor is saved.

Description

Lifting appliance

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a lifting appliance.

Background

Because class round hole parts such as commercial car axle differential case assembly weight is heavy, can reach 25kg, and it is great to lean on personnel transport working strength, consequently, how to make simple and easy convenient hoist fast, to the work efficiency who promotes the part hoist and mount, it is the technical problem that technical staff in the field awaited a urgent need to solve to reduce the operation difficulty.

Disclosure of Invention

The invention mainly aims to provide a lifting appliance, and aims to solve the technical problems that the weight of round hole parts such as axle differential case assemblies of commercial vehicles is heavy and can reach 25kg, and the carrying working strength is high due to personnel.

In order to achieve the above object, the present invention provides a lifting appliance for lifting hole workpieces, comprising:

a base having a movable passage extending in an up-down direction;

the clamping arm is arranged on the base and comprises a clamping part, and the clamping part is used for extending into the hole of the workpiece and moves along the radial direction of the movable channel so as to have a working position for clamping the inner wall of the hole of the workpiece; and (c) a second step of,

the hoist and mount drive division is located along the activity from top to bottom the movable passage, the hoist and mount drive division is including the hoist and mount portion and the drive division that are connected from top to bottom, hoist and mount portion is used for butt joint hoisting equipment, when the drive division moves upwards, the drive the activity of card portion of holding extremely operating position.

Optionally, the lower end of the clamping arm is used for extending into the hole of the workpiece, and the upper end of the clamping arm is rotatably connected to the base, so that the lower end of the clamping arm can move along the radial direction of the moving channel to clamp the inner wall of the hole of the workpiece;

The driving part comprises a driving block, and one side of the driving block, which corresponds to the clamping arm, is obliquely arranged outwards along the radial direction of the movable channel from top to bottom;

the clamping part is arranged at the lower end of the clamping arm.

Optionally, a plurality of clamping arms are arranged, and the plurality of clamping arms are arranged at intervals along the circumferential direction of the base;

the periphery of the driving block is arranged in a manner of inclining outwards along the radial direction of the movable channel from top to bottom.

Optionally, an included angle between one side of the driving block corresponding to the clamping arm and the vertical direction is alpha, and alpha is more than or equal to 20 degrees and less than or equal to 25 degrees.

Optionally, the lower end of the clamping arm is bent outwards along the radial direction of the movable passage to form a bent part, and the bent part is used for clamping a downward step surface formed on the inner wall of the hole of the workpiece;

the clamping part comprises the bending part.

Optionally, an included angle between the bent portion and the vertical direction is β, and β is greater than or equal to 25 ° and less than or equal to 35 °.

Optionally, the lifting part comprises a lifting ring and a connecting rod which are sequentially connected in the vertical direction, and the lifting ring extends out of the upper part of the movable channel;

the driving part is connected to the lower end of the connecting rod, and the lifting ring drives the driving part to move synchronously when moving upwards.

Optionally, the lifting ring is in threaded connection with the extension rod; and/or the presence of a gas in the atmosphere,

the driving part extends upwards to form a hoisting rod, and the hoisting rod is in threaded connection with the connecting rod.

Optionally, the base comprises:

the body is provided with the movable channel, and the clamping arm is arranged on the body; and (c) a second step of,

the shell is sleeved on the periphery of the body, the shell corresponds to the clamping arm and is provided with an avoidance groove, and the upper end of the shell is provided with a through hole communicated with the movable channel.

Optionally, the lifting appliance further comprises two holding plates, the two holding plates are oppositely connected to two sides of the base, and each holding plate extends outwards along the radial direction of the movable channel.

When the lifting appliance provided by the invention is used for lifting hole workpieces, the clamping part firstly extends into the hole of the workpiece, then the lifting equipment is controlled to lift the lifting part upwards, the driving part synchronously moves upwards along with the lifting part, so that the clamping part is driven to move along the radial direction of the movable channel, the clamping part is enabled to clamp the inner wall of the hole of the workpiece, the hole workpieces are lifted, the operation is convenient and fast, and the labor is saved.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a spreader according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the spreader of FIG. 1;

FIG. 3 is a schematic view of the driving portion shown in FIG. 2;

FIG. 4 is a schematic view of the structure of the latch arm of FIG. 2;

FIG. 5 is a schematic perspective view of the housing of FIG. 2;

FIG. 6 is a schematic cross-sectional view of the body of FIG. 2;

FIG. 7 is a schematic cross-sectional view of one embodiment of a bore type workpiece;

fig. 8 is a schematic cross-sectional view of the spreader (housing not shown) of fig. 1 positioned within the aperture of the workpiece of fig. 7.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Lifting appliance	4	Hoisting driving part
1	Base seat	41	Hoisting part
				11	Shell body	411	Hanging ring
11a	Dodging groove	412	Connecting rod
				12	Body	42	Driving part
12a	Movable channel	421	Driving block
				3	Clamp arm	422	Hoisting rod
31	Clamping part	5	Holding plate
				32	A bent part	200	Workpiece

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indication is referred to in the embodiment of the present invention, the directional indication is only used for explaining a relative positional relationship, a motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Because class round hole parts such as commercial car axle differential shell assembly weight is heavy, can reach 25kg, leans on personnel transport working strength great, consequently, how to make simple and easy convenient hoist fast, to the work efficiency who promotes the part hoist and mount, it is the technical problem that technical staff in the field waited to solve urgently to reduce the operation difficulty.

In view of the above, the invention provides a lifting appliance, and aims to solve the technical problems that the weight of round hole parts such as a commercial vehicle axle differential case assembly is heavy and can reach 25kg, and the carrying working strength of people is high. Fig. 1 to 6 show an embodiment of a spreader according to the present invention, and fig. 7 is a schematic cross-sectional view of an embodiment of a hole-type workpiece; fig. 8 is a schematic cross-sectional view of the spreader (housing not shown) of fig. 1 positioned within the aperture of the workpiece of fig. 7.

Referring to fig. 1 to 3, the present invention provides a lifting appliance 100 for lifting hole-like workpieces 200, wherein the lifting appliance 100 includes a base 1, a clamp arm 3 and a lifting driving portion 4. The base 1 is provided with a movable channel 12a extending along the up-down direction; the clamp arm 3 is arranged on the base 1, the clamp arm 3 includes a clamping part 31, the clamping part 31 is used for extending into the hole of the workpiece 200 and moving along the radial direction of the moving channel 12a so as to have a working position for clamping the inner wall of the hole of the workpiece 200; the hoisting driving part 4 is movably arranged in the movable channel 12a along the vertical direction, the hoisting driving part 4 comprises a hoisting part 41 and a driving part 42 which are connected up and down, the hoisting part 41 is used for butting hoisting equipment, and the driving part 42 drives the clamping part 31 to move to the working position when moving upwards.

When the lifting appliance 100 provided by the scheme is used for lifting hole workpieces 200, the clamping part 31 firstly extends into the hole of the workpiece 200, then the lifting equipment is controlled to lift the lifting part 41 upwards, and the driving part 42 synchronously moves upwards along with the lifting part 41, so that the clamping part 31 is driven to move along the radial direction of the movable channel 12a, the clamping part 31 is enabled to clamp the hole inner wall of the workpiece 200, the hole workpieces 200 are lifted, the operation is convenient, and the labor is saved.

It is understood that the latch arm 3 may be partially provided as the catch portion 31, or may be integrally provided as the catch portion 31. In one embodiment, the latch arm 3 is integrally formed as the latching portion 31. Specifically, the driving part 42 drives the chucking arm 3 to horizontally move along the radial direction of the moving passage 12a, so as to chuck the hole inner wall of the workpiece 200.

In this embodiment, the lower end of the chucking arm 3 is provided as the chucking portion 31. Specifically, referring to fig. 2 to 4, the lower end of the clamp arm 3 is used to extend into the hole of the workpiece 200, and the upper end thereof is rotatably connected to the base 1, so that the lower end thereof can move along the radial direction of the moving channel 12a to clamp the inner wall of the hole of the workpiece 200; the driving part 42 comprises a driving block 421, and one side of the driving block 421 corresponding to the clamp arm 3 is inclined outwards along the radial direction of the movable channel 12a from top to bottom; the clamping part 31 is arranged at the lower end of the clamping arm 3. In this embodiment, the upper end of the clamp arm 3 is rotatably connected to the base 1, and may be rotatably connected to the base 1 around the radial direction of the movable passage 12 a. Thus, the lower end of the clamp arm 3 has a moving stroke approaching and departing from the moving channel 12a, so that the lower end of the clamp arm 3 can clamp the inner wall of the hole of the workpiece 200. And the driving block 421 is correspondingly arranged obliquely corresponding to one side of the clamp arm 3, so that when the driving block 421 moves upwards, the clamp arm 3 can be driven to move along the radial direction of the moving channel 12 a. Therefore, the workpiece 200 can be lifted only by lifting the lifting part 41 upwards through equipment, and the operation is simple.

In addition, in this embodiment, the upper end of the card arm 3 is connected to the base 1 through a pin, so that the card arm 3 is rotatably connected to the base 1.

Further, in order to improve the clamping force of the lifting appliance 100 on the workpiece 200, the workpiece 200 is prevented from being separated from the lifting appliance 100 in the lifting process. In this embodiment, a plurality of the clamp arms 3 are provided, and the plurality of clamp arms 3 are arranged at intervals along the circumferential direction of the base 1; the outer periphery of the driving block 421 is inclined outward along the radial direction of the movable passage 12a from top to bottom. According to the scheme, the clamping arms 3 are arranged, so that the clamping force of the hanger 100 to the workpiece 200 is improved. It is understood that, in order to improve the stability of the workpiece 200 to be lifted, a plurality of the spreaders 100 are arranged at regular intervals along the circumferential direction of the base 1. Meanwhile, in order to facilitate the driving block 421 to drive the plurality of catching arms 3 to move in the radial direction of the movable passage 12a, in this embodiment, the outer circumference of the driving block 421 is inclined outward from top to bottom in the radial direction of the movable passage 12a so as to be able to drive the respective catching portions 31 correspondingly. It should be noted that the number of the clip arms 3 is not limited, and three or four clip arms may be provided. In this embodiment, the two clamping arms 3 are arranged, and the two clamping arms 3 are oppositely arranged at two sides of the base 1.

Further, referring to fig. 3, when an included angle between one side of the driving block 421 corresponding to the clamping arm 3 and the vertical direction is too large, the volume of the driving block 421 is too large, so that the clamping portion 31 is not convenient to extend into the hole of the workpiece 200; when the included angle between the side of the driving block 421 corresponding to the clamping arm 3 and the vertical direction is too small, the radial moving stroke of the clamping part 31 along the moving channel 12a is relatively small, and the inner wall of the hole of the workpiece 200 cannot be clamped well. In this embodiment, an included angle between one side of the driving block 421 corresponding to the clamp arm 3 and the vertical direction is α, and α is greater than or equal to 20 ° and less than or equal to 25 °, so that the driving block 421 can be prevented from being too large in volume, and the clamping portion 31 can have a suitable stroke when moving in the radial direction of the moving channel 12 a.

In order to further limit the workpiece 200 from being separated from the lifting tool 100 during the lifting process, in this embodiment, the lower end of the clamping arm 3 is bent outward along the radial direction of the movable passage 12a to form a bent portion 32, and the bent portion 32 is used for clamping a downward step surface formed on the inner wall of the hole of the workpiece 200; the retaining part 31 includes the bent part 32. In this embodiment, the clamping portion 31 and the upper end of the clamping arm 3 are arranged to be bent as described above, so that when the clamping portion 31 moves radially outward along the movable passage 12a, the clamping portion 31 can be clamped under the step surface of the inner wall of the hole of the workpiece 200, and the workpiece 200 is further restricted from being separated downward.

Further, referring to fig. 4, when an included angle between the bending portion 32 and the vertical direction is too large, the retaining portion 31 is not convenient to extend into the hole of the workpiece 200; when the included angle between the bent portion 32 and the vertical direction is too small, the bent portion 32 cannot well limit the step surface of the inner wall of the hole of the workpiece 200. In this embodiment, an included angle between the bent portion 32 and the vertical direction is β, β is greater than or equal to 25 ° and less than or equal to 35 °, when β satisfies the above condition, the bent portion 32 is not only convenient to extend into the hole of the workpiece 200, but also makes the bent portion 32 capable of better limiting the step surface of the inner wall of the hole of the workpiece 200, so as to reduce the risk that the workpiece 200 breaks away from the lifting tool 100 in the lifting process.

Further, in order to facilitate the driving portion 42 to move in the movable passage 12a, in this embodiment, the lifting portion 41 includes a hanging ring 411 and a connecting rod 412 connected in sequence in the vertical direction, and the hanging ring 411 extends above the movable passage 12 a; the driving part 42 is connected to the lower end of the connecting rod 412, and the lifting ring 411 drives the driving part 42 to move synchronously when moving upwards. By butting the hoisting equipment with the hoisting ring 411, when the hoisting equipment hoists the hoisting ring 411 upwards, the driving part 42 moves synchronously with the hoisting ring 411, so as to drive the clamping part 31 to move along the radial direction of the movable channel 12 a.

Further, in practical application, the requirement on the quality of the hanging ring 411 is high, and when the hanging ring 411 is damaged, the hanging ring needs to be replaced in time. Therefore, in order to facilitate timely replacement of the hanging ring 411, in this embodiment, the hanging ring 411 is threadedly coupled to the extension bar 412. Similarly, in order to ensure that the retaining portion 31 can stably move along the radial direction of the movable passage 12a, it is necessary to ensure that the outer periphery of the driving portion 42 can be relatively smooth, and in order to replace the outer periphery of the driving portion 42 in time after the outer periphery is worn, in this embodiment, the driving portion 42 extends upward to form a hoisting rod 422, and the hoisting rod 422 is in threaded connection with the connecting rod 412.

Further, referring to fig. 5 and 6, the base 1 includes a body 12 and a housing 11, the body 12 is provided with the movable channel 12a, and the clamp arm 3 is provided on the body 12; and the shell 11 is sleeved on the periphery of the body 12, the shell 11 corresponds to the clamping arm 3 and is provided with an avoiding groove 11a, and the upper end of the shell is provided with a through hole communicated with the movable channel 12 a. In this embodiment, the housing 11 is sleeved on the outer periphery of the body 12, the clamp arm 3 is disposed on the body 12, and the housing 11 is correspondingly provided with an avoiding groove 11a for avoiding the clamp arm 3, so that the hanger 100 is more beautiful; on the other hand, the housing 11 can also function as a guide for extending the retaining portion 31 into the hole of the workpiece 200.

Further, referring to fig. 7 and 8, in order to facilitate the placing and taking out of the retaining portion 31 into and from the hole of the workpiece 200, in this embodiment, the lifting appliance 100 further includes two holding plates 5, the two holding plates 5 are oppositely connected to two sides of the base 1, and each holding plate 5 is disposed to extend outward along the radial direction of the movable channel 12 a. Therefore, before the workpieces 200 are hoisted, an operator holds the holding plate 5 to place the clamping part 31 into the hole of the workpiece 200, and after the workpieces 200 are hoisted in place, the operator holds the holding plate 5 to take the clamping part 31 out of the hole of the workpiece 200, so that the operation is convenient and fast.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A lifting appliance for lifting hole type workpieces is characterized by comprising:

a base having a movable passage extending in an up-down direction;

the clamping arm is arranged on the base and comprises a clamping part, and the clamping part is used for extending into the hole of the workpiece and moving along the radial direction of the movable channel so as to have a working position for clamping the inner wall of the hole of the workpiece; and the number of the first and second groups,

The hoisting driving part is arranged in the movable channel in an up-down direction, the hoisting driving part comprises a hoisting part and a driving part which are connected up and down, the hoisting part is used for butting hoisting equipment, and the driving part drives the clamping part to move to the working position when moving upwards.

2. The spreader of claim 1, wherein the lower end of the clamp arm is configured to extend into the hole of the workpiece, and the upper end thereof is rotatably connected to the base such that the lower end thereof can move in a radial direction of the movable passage to clamp the inner wall of the hole of the workpiece;

the clamping part is arranged at the lower end of the clamping arm.

3. The spreader according to claim 2, wherein the plurality of the clamp arms are arranged at intervals along the circumferential direction of the base;

4. The spreader of claim 2, wherein the side of the driving block corresponding to the clamp arm forms an angle α with the vertical direction, and the angle α is 20 ° to 25 °.

5. The spreader according to any one of claims 1 to 4, wherein the lower ends of the clamping arms are bent outward in the radial direction of the movable passage to form bent portions for clamping a downwardly disposed stepped surface formed on the inner wall of the hole of the workpiece;

the clamping part comprises the bending part.

6. The spreader of claim 5, wherein the angle between the bent portion and the top-bottom direction is β, and 25 ° β 35 °.

7. The spreader according to claim 1, wherein the lifting part comprises a hanging ring and a connecting rod which are sequentially connected in the up-down direction, and the hanging ring extends out of the movable passage;

8. The spreader of claim 7, wherein the lifting rings are in threaded connection with the reach bar; and/or the presence of a gas in the gas,

the drive portion upwards extends and is formed with the hoist and mount pole, the hoist and mount pole with connect the pole spiro union.

9. The spreader of claim 1, wherein the base comprises:

the body is provided with the movable channel, and the clamping arm is arranged on the body; and the number of the first and second groups,

The shell is sleeved on the periphery of the body, the shell corresponds to the clamping arm and is provided with an avoiding groove, and the upper end of the shell is provided with a through hole communicated with the movable channel.

10. The spreader of claim 1, further comprising two gripping plates, wherein the two gripping plates are connected to two opposite sides of the base, and each gripping plate extends radially outward of the movable channel.