CN217947424U

CN217947424U - Crane pre-tightening pulley bracket

Info

Publication number: CN217947424U
Application number: CN202222255165.6U
Authority: CN
Inventors: 郭威; 郭静; 周振华
Original assignee: Changsha Jinwei Auto Electric Co ltd
Current assignee: Changsha Jinwei Auto Electric Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-12-02
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses a hoist pretension pulley support, including connecting portion and fixed plate, the lower extreme and the outside hoist of connecting portion are connected, the fixed plate includes the left fixed plate and the right fixed plate that parallel relative set up, the upper end tip of left side fixed plate is equipped with two first quarter butt that are the splayed, right side fixed plate upper end tip is equipped with two and first quarter butt one-to-one and assorted second quarter butt, each first quarter butt all fixes between rather than the second quarter butt that corresponds and is equipped with the round pin axle, first shaft hole has been seted up on the left side fixed plate, set up on the right side fixed plate with first shaft hole matching corresponding second shaft hole, it is equipped with the axis of rotation to rotate between first shaft hole and the second shaft hole, the axis of rotation is connected and then realize the pretension to wire rope on the outside hoist through locating outside wire rope in the axis of rotation and outside pretension pulley. The utility model discloses a cooperation of axis of rotation and round pin axle has realized pretightening and spacing to wire rope, has avoided the emergence of the indiscriminate rope phenomenon of wire rope.

Description

Crane pre-tightening pulley bracket

Technical Field

The utility model relates to an engineering machine tool technical field especially relates to a hoist pretension pulley support.

Background

With the rapid development of world economy, large-scale hoisting equipment is increasing, the hoisting industry is showing a booming scene of development, and as a pre-tightening steel rope structure device of an important transmission part of a crane, a certain pre-tightening force needs to be applied to a steel rope to avoid rope disorder and the like, and the purpose of moving a heavy object is achieved by transferring load after the steel rope is pre-tightened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hoist pretension pulley support, it includes connecting portion and fixed plate, the lower extreme and the outside hoist of connecting portion are connected, the fixed plate includes parallel relative setting and the fixed left fixed plate and the right fixed plate that are located the connecting portion upper end tip left and right sides, the upper end tip of left side fixed plate is equipped with two first quarter butt that is the splayed, right side fixed plate upper end tip is equipped with two and first quarter butt one-to-one and assorted second quarter butt, each first quarter butt all is fixed between rather than the second quarter butt that corresponds and is equipped with the round pin axle, first shaft hole has been seted up on the fixed plate of a left side, set up on the fixed plate of a right side with the corresponding second shaft hole of first shaft hole matching, it is equipped with the axis of rotation to rotate between first shaft hole and the second shaft hole, the axis of rotation is connected and then realizes the pretension of wire rope on the outside hoist around locating the axis of rotation outside wire rope.

Preferably, the pin shaft is detachably and fixedly arranged between the first short rod and the corresponding second short rod through the first short rod and a third shaft hole formed at the upper end of the corresponding second short rod.

Preferably, the rotating shaft is detachably fixed on the second shaft hole through a clamping spring.

Preferably, all be equipped with the axle sleeve on first shaft hole and the second shaft hole, the axis of rotation passes through the axle sleeve and rotates to be located between first shaft hole and the second shaft hole.

Preferably, the connecting part is welded and fixed with the fixing plate.

Preferably, the left fixing plate and the first short rod and the right fixing plate and the second short rod are welded and fixed.

Preferably, the connecting part is provided with a plurality of through holes for reducing the weight of the connecting part.

Preferably, a connecting sleeve connected with an external crane is arranged at the lower end of the connecting part.

Compared with the prior art, the utility model relates to a hoist pretension pulley support, the matching through outside pretension pulley and axis of rotation applys certain pretightning force to wire rope, has realized spacing of wire rope upper and lower direction, because the wire rope is around establishing in the axis of rotation and being located between two round pin axles in operating condition, and then has realized spacing of wire rope left and right directions and fore-and-aft direction, consequently, the utility model discloses a set up fixed plate, axis of rotation and round pin axle, can effectively avoid the emergence of the indiscriminate rope phenomenon of wire rope under the operating condition, increased the stability of lifting by crane and wire rope's life, have simple structure, easily operation and characteristics that the practicality is strong.

Drawings

FIG. 1 is a schematic structural view of a pre-tightening pulley bracket of a crane according to the present invention,

fig. 2 is the schematic structural diagram of the present invention for removing the pin shaft and the rotation shaft.

In the figure: 1. the connecting part 21, the left fixing plate 22, the right fixing plate 31, the first shaft hole 32, the second shaft hole 33, the shaft sleeve 4, the rotating shaft 51, the first short rod 52, the second short rod 6, the pin shaft 7, the through hole 8, the connecting sleeve 9 and the third shaft hole.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

It should be noted that, in the present invention, "first", "second" and "third" only represent different components, and there is no difference in order, and taking fig. 1 as an example, the vertical paper surface is upward, the vertical paper surface is downward, the vertical paper surface is leftward, the vertical paper surface is rightward, the vertical paper surface is inward, and the vertical paper surface is outward.

As shown in fig. 1 and 2, a crane pre-tightening pulley support comprises a connecting portion 1 and a fixing plate, wherein the lower end of the connecting portion 1 is connected with an external crane, the fixing plate comprises a left fixing plate 21 and a right fixing plate 22 which are oppositely arranged in parallel and fixedly located on the left side and the right side of the upper end portion of the connecting portion 1, the upper end portion of the left fixing plate 21 is provided with two inverted-splayed first short rods 51, the upper end portion of the right fixing plate 22 is provided with two second short rods 52 which correspond to the first short rods 51 one by one and are matched with each other, a pin shaft 6 is fixedly arranged between each first short rod 51 and the corresponding second short rod 52, a first shaft hole 31 is formed in the left fixing plate 21, a second shaft hole 32 which corresponds to the first shaft hole 31 in a matched manner is formed in the right fixing plate 22, a rotating shaft 4 is rotatably arranged between the first shaft hole 31 and the second shaft hole 32, and the rotating shaft 4 is connected with an external pulley through an external steel wire rope arranged on the rotating shaft 4 in a pre-tightening manner, so as to achieve pre-tightening of the steel wire rope on the external crane.

In the embodiment, the rotating shaft 4 connected with the external pre-tightening pulley is arranged between the left fixing plate 21 and the right fixing plate 22, and when the rotating shaft 4 and the external pre-tightening pulley are in a working state, a certain pre-tightening force is applied to the steel wire rope based on the matching of the rotating shaft 4 and the external pre-tightening pulley, so that the steel wire rope can be limited in the vertical direction and the left-right direction; meanwhile, the upper ends of the left fixing plate 21 and the right fixing plate 22 are respectively provided with a first short rod 51 and a second short rod 52 which are inverted splayed, a pin shaft 6 is arranged between the first short rod 51 and the corresponding second short rod 52, the front and back directions of the steel wire rope in a working state can be limited by the two pin shafts 6, and the rigidity of the equipment can be effectively improved by arranging the two pin shafts 6 to connect the first short rod 51 and the second short rod 52, and the equipment is prevented from deforming, falling of the steel wire rope and groove jumping are prevented; because the rotating shaft 4 and the external pre-tightening pulley apply a certain pre-tightening force to the steel wire rope, the phenomenon that the steel wire rope is disordered can be effectively avoided, the lifting stability is improved, the service life of the steel wire rope is prolonged, and the device has the characteristics of simple structure, easiness in operation and high practicability.

The rotating shaft 4 is detachably fixed on the second shaft hole 32 through a clamp spring. The jump ring sets up both ends and is located the left side of left fixed plate 21 and the right side of right fixed plate 22 respectively about axis of rotation 4, utilizes the jump ring to constitute jump ring locking structure, has both guaranteed that axis of rotation 4 reliable and stable rotates and locates in second shaft hole 32, still has simple structure simultaneously, convenient assembling, and maintainability is good, low cost's characteristics.

As shown in fig. 1 and fig. 2, the pin 6 is detachably fixed between the first short rod 51 and the second short rod 52 through the first short rod 51 and the third shaft hole 9 formed at the upper end of the second short rod 52.

In this embodiment, through setting up third shaft hole 9 demountable and fixed mounting round pin axle 6, existing processing transportation that does benefit to part also is favorable to routine maintenance simultaneously.

As shown in fig. 1 and 2, the first shaft hole 31 and the second shaft hole 32 are both provided with a bushing 33, and the rotating shaft 4 is rotatably provided between the first shaft hole 31 and the second shaft hole 32 through the bushing 33. In the embodiment, the friction force between the rotating shaft 4 and the first shaft hole 31 and the second shaft hole 32 can be effectively reduced by arranging the shaft sleeve 33, so that the service lives of the rotating shaft 4 and the fixing plate are prolonged, and the production cost is saved to a certain extent; meanwhile, the smooth operation of the steel wire rope is facilitated.

Wherein, connecting portion 1 and fixed plate welded fastening. The left fixing plate 21 and the first short rod 51, and the right fixing plate 22 and the second short rod 52 are all welded and fixed.

In this embodiment, the connecting portion 1 and the fixing plate, the left fixing plate 21 and the first short rod 51, and the right fixing plate 22 and the second short rod 52 are fixedly connected by welding, so that not only can the connection reliability between the components be ensured, but also the processing and transportation of the components are facilitated.

As shown in fig. 1 and 2, the connecting portion 1 is provided with a plurality of through holes 7 for reducing the weight of the connecting portion 1. In this embodiment, through set up through-hole 7 on connecting portion 1, and then can effectively reduce connecting portion 1's weight, be favorable to the processing and the transportation of part, alleviateed operating personnel's intensity of labour to a certain extent.

As shown in fig. 1 and 2, a connecting sleeve 8 connected with an external crane is arranged at the lower end of the connecting part 1. In this embodiment, through setting up the adapter sleeve 8 with outside hoist accordant connection, can enough effectively guarantee the connection reliability between connecting portion 1 and the outside hoist, also can alleviate operating personnel's intensity of labour simultaneously.

It is right above the utility model provides a hoist pretension pulley support has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a hoist pretension pulley support, a serial communication port, including connecting portion (1) and fixed plate, the lower extreme and the outside hoist of connecting portion (1) are connected, the fixed plate includes parallel relative setting and fixed left fixed plate (21) and the right fixed plate (22) that are located connecting portion (1) upper end tip left and right sides, the upper end tip of left fixed plate (21) is equipped with two first quarter butt (51) that are the splayed that fall, right fixed plate (22) upper end tip is equipped with two and first quarter butt (51) one-to-one and assorted second quarter butt (52), all fixed being equipped with round pin axle (6) between each first quarter butt (51) and the second quarter butt (52) that correspond thereof, first shaft hole (31) have been seted up on left fixed plate (21), set up second shaft hole (32) with first shaft hole (31) phase-match on right fixed plate (22), it is equipped with axis of rotation (4) to rotate between first shaft hole (31) and second shaft hole (32), axis of rotation (4) are connected and then realize the pretension rope to the outside hoist steel wire rope through locating outside wire rope on axis of rotation (4) outside pretension pulley.

2. The crane pre-tightening pulley bracket as claimed in claim 1, wherein the pin (6) is detachably fixed between the first short rod (51) and the second short rod (52) through a third shaft hole (9) formed at the upper end of the first short rod (51) and the second short rod (52).

3. A crane pretensioned pulley bracket according to claim 1, wherein the rotating shaft (4) is detachably fixed in the second shaft hole (32) by means of a circlip.

4. A crane pre-tensioning sheave bracket as claimed in claim 1, characterized in that the first shaft bore (31) and the second shaft bore (32) are provided with bushings (33), and the rotary shaft (4) is rotatably arranged between the first shaft bore (31) and the second shaft bore (32) via the bushings (33).

5. A crane pre-tensioning sheave bracket as claimed in claim 1, characterized in that the connection (1) is fixed by welding to the fixed plate.

6. The crane pre-tensioning pulley bracket as claimed in claim 1, wherein the left fixing plate (21) and the first short rod (51) and the right fixing plate (22) and the second short rod (52) are welded and fixed.

7. A crane pre-tightening pulley bracket as defined in claim 1, characterized in that the connecting part (1) is provided with a plurality of through holes (7) for reducing the weight of the connecting part (1).

8. A crane pre-tensioning sheave bracket as claimed in claim 1, characterized in that the lower end of the connection part (1) is provided with a connection sleeve (8) for connection to an external crane.