CN216512378U

CN216512378U - Lifting appliance for irregular flywheel housing structure

Info

Publication number: CN216512378U
Application number: CN202220048115.8U
Authority: CN
Inventors: 蒋培堂; 郭金生; 王俊东; 钱飞; 叶祥清
Original assignee: Shiyan Zhongchai Engine Parts Manufacturing Co ltd
Current assignee: Shiyan Zhongchai Engine Parts Manufacturing Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-05-13
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a lifting appliance for an irregular flywheel shell structure, which comprises a lifting ring, wherein the lifting ring is connected with lifting equipment, the lifting ring is connected with a central shaft through a mounting seat, the upper part of the central shaft is provided with three upper hinged seats which can adjust mutual included angles and limit up and down sliding, the lower part of the central shaft is provided with three corresponding lower hinged seats which can adjust the included angles, and the lower end of the central shaft is provided with an anti-falling limiting mechanism; the three upper hinged seats are respectively hinged with a lifting claw with the lower end provided with a hook part, the three lower hinged seats are respectively hinged with a contraction pull rod, and the other end of the contraction pull rod is hinged with the corresponding lifting claw. The three lifting claws with unequal lengths can be used according to the gravity center of the lifted part and the hanging part, and the angles among the three lifting claws can be adjusted, so that the part is ensured to be in a balanced and stable position when being lifted, the lifting efficiency is improved, and the risk that the lifted part is easy to fall is also solved.

Description

Lifting appliance for irregular flywheel housing structure

Technical Field

The utility model relates to the field of hoisting, in particular to a hoisting tool for an irregular flywheel shell structure.

Background

In the field of production manufacturing or logistics transportation, the hoist and mount of article often need be carried out, and different hoists all can be used to the hoist and mount in-process, need select different hoists to different products or article, for example: commonly used are claws, hooks, ropes, tapes, etc.

Various products with different sizes, shapes and complex structures are frequently encountered in the field of machining, wherein an engine flywheel shell is a part with a complex and irregular shape, the flywheel shell is an important connecting part for connecting an engine cylinder body and a gearbox and is one of core parts of the engine, the weight of the product is heavier and is not as high as 20-78KG, and the part to be machined needs to be hoisted to a tool clamp by virtue of a hoisting tool.

The engine flywheel housing H is shown in figure 1, a flywheel chamber A is arranged on one side, a crankshaft hole B is arranged in the center of the flywheel chamber, a gear chamber is arranged on the back of the flywheel chamber, the gear chamber is of an irregular structure, and PTO holes C and maintenance holes D of the gear chamber extend out of the bottom surface of the flywheel chamber and are arranged in a staggered mode, so that the gravity center of the flywheel housing is deviated from the center position of the crankshaft hole of the flywheel chamber.

The flywheel housing with a regular shape can be stably lifted by using a three-jaw lifting appliance to hook the bottom of the outer side of the upper edge E of the flywheel chamber of the flywheel housing directly through three lifting hooks. Three lifting hooks of three-jaw hoist evenly distributed, and three lifting hook are isometric setting.

However, for the irregular flywheel shell product, the lifting appliance is unbalanced when lifted, an operator cannot accurately place the part at the tool positioning position once after lifting, and the position of the part needs to be manually adjusted, which is labor-consuming and time-consuming; and when the part lifts by crane the swing, often there is the condition of droing to take place, no matter all have very big potential safety hazard to people or to the part, both probably injure the operation workman after the part drops, also can cause the part to scrap because the finish machining face collides with seriously. Meanwhile, the lifting appliance is made of steel with high hardness, and the lifting appliance is easily extruded or collided with the contact part of the part, so that the part is poor.

Disclosure of Invention

In order to solve the problems of unbalanced lifting, easy slipping, easy collision and the like of the conventional lifting appliance, the utility model provides the lifting appliance for the irregular flywheel shell structure, which has the advantages of strong universality, safety, firmness, low cost, simple and stable operation and capability of ensuring that the processing surface of a part cannot be scratched and damaged in the lifting process.

Therefore, the technical scheme of the utility model is that the lifting appliance for the irregular flywheel shell structure comprises a lifting ring, wherein the lifting ring is connected with lifting equipment, and the lifting appliance is characterized in that:

the lifting ring is connected with a central shaft which extends downwards through a mounting seat, the upper part of the central shaft is provided with a limiting sleeve, the periphery of the central shaft between the mounting seat and the limiting sleeve is provided with three upper hinged seats with adjustable mutual included angles, the lower part of the central shaft is provided with three lower hinged seats with adjustable included angles corresponding to the upper hinged seats, and the lower end of the central shaft is provided with a limiting mechanism for preventing the lower hinged seats from falling off;

the center shaft is used as a reference to be opposite to the gravity center position of the flywheel shell, the three upper hinged seats are respectively hinged with hanging claws of which the lower ends are provided with hanging hook parts, the lengths of the two hanging claws are respectively adapted to the distance from the upper hinged seat to the two hanging parts far away from the maintenance hole on the flywheel chamber of the flywheel shell, and the length of the other hanging claw is adapted to the distance from the hinged seat to the maintenance hole hanging part of the flywheel shell; the three lower hinged seats are respectively hinged with a contraction pull rod, and the other end of the contraction pull rod is hinged with the corresponding hanging claw.

Preferably, the upper hinging seat and the lower hinging seat with adjustable included angles are independent parts and comprise annular sleeves, two side plates which are radially symmetrical and parallel are extended out of the outer walls of the annular sleeves, symmetrical rotating shaft holes are formed in the side plates, rotating shafts used for connecting lifting claws are arranged in the rotating shaft holes, the upper hinging seat and the lower hinging seat are sequentially sleeved on the central shaft from top to bottom, the upper hinging seat is in rotating fit with the central shaft, and the lower hinging seat can rotate along the central shaft and is in sliding fit with the central shaft up and down. The structure can increase the universality, and can be used by only replacing the corresponding lifting claws for different parts.

Preferably, the central shaft is connected with the mounting seat through threads, so that the central shaft is convenient to disassemble and maintain.

Preferably, the lower end of the central shaft is provided with a limiting mechanism for preventing the lower hinged seat from falling off, and the specific structure is that the central shaft is radially provided with a through pin shaft hole and is limited through an inserted pin shaft. The maintenance and the disassembly are convenient.

Preferably, the lifting claw is of a V-shaped structure, the included angle is an obtuse angle, one end of the lifting claw is hinged with the hinge base, and the end part of the other end of the lifting claw is provided with a hook part which is bent inwards and extends in a transition mode. This structure can bear a greater weight.

Preferably, the hook part of the lifting claw is provided with a brass coating layer with the thickness of 0.5mm, the hardness of copper is lower than that of the lifted part, and unqualified parts caused by scratching the surface of the flywheel shell in the lifting process can be avoided.

Preferably, rings adopt No. 20 steel, and lifting claw, center pin, go up articulated seat and articulated seat down all adopt No. 45 steel, wherein: the lifting claw is manufactured by laser cutting, and the upper hinge seat and the lower hinge seat are subjected to heat treatment and have hardness higher than HRC 42. The purpose is to guarantee the intensity of hoist.

Has the advantages that: compared with the prior art, the three lifting claws of the utility model have unequal designed lengths, the distribution angles of the other three lifting claws can be adjusted, and particularly, the special lifting tool designed for irregular parts and even specified lifting positions has strong pertinence, products with different shapes and sizes can be used only by designing and replacing the lifting claws with different lengths and randomly adjusting the angles among the lifting claws, so that the parts can be ensured to be in a balanced and stable position when lifted, the balance of the gravity of the lifted parts is realized, the lifting efficiency is improved, and the risk that the lifted parts are easy to fall is also solved. The utility model has the characteristics of strong universality, safety, firmness, low cost, simple and stable operation, no scratch of an oil seal hole in the hoisting process and the like, ensures the personal safety of operators, saves the hoisting time and improves the production efficiency of parts.

Drawings

FIG. 1 is a block diagram of the flywheel housing of the present invention.

Fig. 2 is a structural view of the present invention.

Fig. 3 is a structural view of upper and lower hinge bases of the present invention.

Fig. 4 is a use state diagram of the present invention.

Shown in the figure: 1. a hoisting ring; 2. a mounting seat; 3. a central shaft; 4. a limiting sleeve; 5. an upper hinge base; 6. a lower hinge base; 7. a lifting claw; 8. retracting the pull rod; 9. a pin shaft; 10. and (4) coating the brass.

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model is shown in figures 1 to 4:

a lifting appliance for an irregular flywheel shell structure comprises a lifting ring 1, wherein the lifting ring is connected with lifting equipment, the lifting ring is connected with a central shaft 3 which extends downwards through a mounting seat 2, the upper part of the central shaft is provided with a limiting sleeve 4, the periphery of the central shaft between the mounting seat and the limiting sleeve is provided with three upper hinged seats 5 with adjustable mutual included angles, the lower part of the central shaft is provided with three lower hinged seats 6 with adjustable included angles corresponding to the upper hinged seats, and the lower end of the central shaft is provided with a limiting mechanism for preventing the lower hinged seats from falling off;

taking the gravity center position of the flywheel shell opposite to the central shaft as a reference, the three upper hinged seats 5 are respectively hinged with hanging claws 7 with hanging hook parts at the lower ends, wherein the lengths of two hanging claws 71 are respectively adapted to the distance from the corresponding upper hinged seat to two hanging parts far away from the maintenance hole on the flywheel chamber of the flywheel shell along the E, and the length of the other hanging claw 72 is adapted to the distance from the hinged seat to the hanging part of the maintenance hole D of the flywheel shell; the three lower hinged seats 6 are respectively hinged with a contraction pull rod 8, and the other end of the contraction pull rod is hinged with the corresponding lifting claw.

The adjustable included angle last articulated seat 5 and articulated seat 6 are independent, including annular cover 61, the annular cover outer wall stretches out the curb plate 62 that has two radial symmetries to be parallel, is equipped with the pivot hole 63 of symmetry on the curb plate, is equipped with the pivot that is used for connecting the lifting claw in the pivot hole, goes up articulated seat and articulated seat down and all from last suit in proper order on the center pin down, goes up articulated seat and center pin normal running fit, and articulated seat rotates and sliding fit from top to bottom along the center pin down. The structure can increase the universality, and can be used by only replacing the corresponding lifting claws for different parts.

The central shaft 3 is connected with the mounting base 2 through threads, and the dismounting and the maintenance are convenient.

The lower end of the central shaft is provided with a limiting mechanism for preventing the lower hinge seat from falling off, and the specific structure is that the central shaft is radially provided with a through pin shaft hole and is limited by an inserted pin shaft 9; the limiting can also be realized by connecting a nut through threads. The purpose is conveniently maintain the dismouting.

The lifting claw 7 is of a V-shaped structure, the included angle is an obtuse angle, one end of the lifting claw is hinged with the hinged seat, and the end part of the other end of the lifting claw is provided with a hook part 73 which is bent inwards and extends in a transition mode. This structure can bear a greater weight.

The hook part 73 of the lifting claw is provided with a brass coating 10 with the thickness of 0.5mm, the hardness of copper is lower than that of a lifted part, and unqualified parts caused by scratching the surface of the flywheel shell in the lifting process can be avoided.

Rings adopt No. 20 steel, and lifting claw, center pin, go up articulated seat and articulated seat down all adopt No. 45 steel, wherein: the lifting claw is made by laser cutting, the upper hinge seat and the lower hinge seat are subjected to heat treatment, and the hardness is more than HRC42

Other parts of the utility model not described in detail are prior art and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; 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; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a hoist for irregular bell housing structure, includes rings, rings are connected its characterized in that with the equipment of lifting by crane:

the center shaft is used as a reference to be opposite to the gravity center position of the flywheel shell, the three upper hinged seats are respectively hinged with hanging claws of which the lower ends are provided with hanging hook parts, the lengths of the two hanging claws are respectively adapted to the distance from the upper hinged seat to the two hanging parts on the flywheel chamber of the flywheel shell, which are far away from the maintenance hole, and the length of the other hanging claw is adapted to the distance from the hinged seat to the maintenance hole hanging part of the flywheel shell; the three lower hinged seats are respectively hinged with a contraction pull rod, and the other end of the contraction pull rod is hinged with the corresponding hanging claw.

2. A spreader for an irregular flywheel housing structure according to claim 1, wherein: the adjustable included angle last articulated seat and articulated seat down are independent, including the annular cover, and the annular cover outer wall stretches out has two radial symmetry parallel curb plates, is equipped with the pivot hole of symmetry on the curb plate, is equipped with the pivot that is used for connecting the lifting claw in the pivot hole, goes up articulated seat and articulated seat down and all from last suit in proper order on the center pin down, goes up articulated seat and center pin normal running fit, and articulated seat rotates and upper and lower sliding fit along the center pin down.

3. A spreader for an irregular flywheel housing structure according to claim 1 or 2, wherein: the center pin lower extreme is equipped with the stop gear who prevents articulated seat and drop down, and concrete structure does, and the center pin radially establishes the round pin shaft hole that runs through to it is spacing through the cartridge round pin axle.

4. A spreader for an irregular flywheel housing structure according to claim 1 or 2, wherein: the central shaft is connected with the mounting seat through threads.

5. A spreader for an irregular flywheel housing structure according to claim 3, wherein: the lifting claw is of a V-shaped structure, the included angle is an obtuse angle, one end of the lifting claw is hinged with the hinge base, and the end part of the other end of the lifting claw is provided with a hook part which is bent inwards and extends in a transition mode.

6. A spreader for an irregular flywheel housing structure according to claim 5, wherein: and a brass coating layer with the thickness of 0.5mm is arranged on the hook part of the lifting claw.

7. A spreader for an irregular flywheel housing structure according to claim 1 or 2 or 5 or 6, wherein: rings adopt No. 20 steel, and lifting claw, center pin, go up articulated seat and articulated seat down all adopt No. 45 steel, wherein: the lifting claw is manufactured by laser cutting, and the upper hinge seat and the lower hinge seat are subjected to heat treatment and have hardness higher than HRC 42.