CN214661353U

CN214661353U - Adjustable pin bush

Info

Publication number: CN214661353U
Application number: CN202022965099.2U
Authority: CN
Inventors: 李绍德; 杜文亭; 郑攀; 张广龙; 郝成龙; 朱文学; 黄艳红; 张贺; 房佳
Original assignee: Xuzhou Baolai Precision Machinery Co Ltd
Current assignee: Xuzhou Baolai Precision Machinery Co Ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-11-09
Anticipated expiration: 2030-12-12

Abstract

The utility model discloses an adjustable pin bush, including pin bush main part and slewing mechanism, the thread groove has been seted up at the inboard both ends of pin bush main part, and threaded connection has the screw thread ring on the thread groove, the outside of screw thread ring is fixed with the spacing ring, and the outside fixed surface of spacing ring has the abrasion pad, the inboard of pin bush main part is fixed with the filling layer, and the inboard of filling layer is fixed with the mounting bracket, and the through-hole has been seted up to the inboard of mounting bracket simultaneously, the inner wall both ends at the mounting bracket are fixed to the spring, movable rod sliding connection is on the inner wall of mounting bracket, and the bearing is connected with the live-rollers on the movable rod. This adjustable pin bush is provided with thread groove, screw ring and spacing ring, makes its cooperation screw ring and thread groove drive the spacing ring and outwards removes through rotating the spacing ring to the length of adjusting the pin bush main part is conveniently adjusted according to the length of round pin axle, reduces the clearance between round pin axle both ends and the pin bush main part both ends, improvement life that can be better.

Description

Adjustable pin bush

Technical Field

The utility model relates to a pin bushing technical field specifically is an adjustable pin bushing.

Background

The pin bush is a spare part that uses with round pin axle cooperation, wide application is on various engineering machine tool, for example excavator and bull-dozer etc. have the place of digging arm, the length of the inconvenient regulation pin bush of current pin bush, because the length of round pin axle is mostly longer than the pin bush, the both ends of round pin axle can be continuous and take place wearing and tearing between the round pin axle in mechanical transmission process after the round pin axle installation for its wearing and tearing speed, and wearing and tearing are great between the through-hole of current pin bush inner wall and the round pin axle, the loss is very fast, the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an adjustable pin bush to solve the length of the inconvenient adjustment pin bush of current pin bush that proposes among the above-mentioned background art, the both ends of round pin axle can be continuous and take place wearing and tearing with the both ends striking of round pin axle in mechanical transmission process after the round pin axle installation, and wearing and tearing are great between current pin bush inner wall through-hole and the round pin axle, and the loss is very fast, the relatively poor problem of practicality.

In order to achieve the above object, the utility model provides a following technical scheme: an adjustable pin bush comprises a pin bush main body and a rotating mechanism,

the inner side of the pin bush body is fixed with a filling layer, the inner side of the filling layer is fixed with a mounting frame, and meanwhile, the inner side of the mounting frame is provided with a through hole;

and the rotating mechanism is used for reducing abrasion between the pin shaft and the through hole and is arranged on the inner wall of the mounting frame.

Preferably, slewing mechanism includes spring, movable rod and live-rollers, the spring is fixed at the inner wall both ends of mounting bracket, and the spring is connected with the movable rod, movable rod sliding connection is on the inner wall of mounting bracket, and bearing connection has the live-rollers on the movable rod, and the live-rollers runs through the through-hole simultaneously.

Preferably, thread groove, screw ring, spacing ring and wear pad all are provided with two sets ofly, and it all sets up symmetrically.

Preferably, the material of the filling layer is rubber.

Preferably, the springs, the movable rods and the rotating rollers are all provided with multiple groups, and the multiple groups are arranged on the inner wall of the mounting frame at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that: the adjustable pin sleeve is arranged on the pin sleeve,

(1) the pin sleeve is provided with the thread groove, the thread ring and the limiting ring, and the limiting ring is matched with the thread ring and the thread groove to drive the limiting ring to move outwards by rotating the limiting ring, so that the length of the pin sleeve main body is adjusted, the adjustment is convenient according to the length of the pin shaft, the clearance between the two ends of the pin shaft and the two ends of the pin sleeve main body is reduced, the abrasion is reduced, and the service life can be better prolonged;

(2) be provided with movable rod and live-rollers, the live-rollers rotation on through the movable rod can reduce the friction between round pin axle and the through-hole in mechanical transmission process, reduces the frictional force between round pin axle and the through-hole in mechanical transmission process, and reducing wear improves its practicality.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic view of the front view structure of the pin bush main body of the present invention;

fig. 3 is a schematic view of the front view structure of the stop collar of the present invention.

In the figure: 1. the pin bush comprises a pin bush body, 2, a thread groove, 3, a thread ring, 4, a limiting ring, 5, a wear-resistant pad, 6, a filling layer, 7, an installation frame, 8, a through hole, 9, a rotating mechanism, 901, a spring, 902, a movable rod, 903 and a rotating roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an adjustable pin bush is disclosed, as shown in fig. 1 and fig. 3, both ends of the inner side of a pin bush main body 1 are provided with thread grooves 2, the thread grooves 2 are in threaded connection with thread rings 3, the thread grooves 2, the thread rings 3, a limiting ring 4 and a wear pad 5 are respectively provided in two groups, and the two groups are symmetrically arranged, the limiting ring 4 is rotated to drive the thread rings 3 to rotate in the thread grooves 2 at both ends of the pin bush main body 1, so as to drive the thread rings 3 and the limiting ring 4 to move outwards to adjust the length of the pin bush main body 1, the length of the pin bush main body 1 is conveniently adjusted according to the length of a pin shaft after the pin shaft is installed, gaps between both ends of the pin shaft and both ends of the pin bush main body 1 are reduced, wear is reduced, the limiting ring 4 is fixed at the outer side of the thread rings 3, the wear pad 5 is fixed at the outer side surface of the limiting ring 4, a filling layer 6 is fixed at the inner side of the pin bush main body 1, and a mounting frame 7 is fixed at the inner side of the filling layer 6, meanwhile, the through hole 8 is formed in the inner side of the mounting frame 7, and the filling layer 6 is made of rubber, so that vibration of machinery to the pin bush main body 1 in the transmission process is reduced.

As shown in fig. 1, 2 and 3, a rotating mechanism 9 for reducing abrasion between the pin shaft and the through hole 8 is installed on the inner wall of the mounting frame 7, the rotating mechanism 9 includes a spring 901, a movable rod 902 and a rotating roller 903, the spring 901 is fixed at two ends of the inner wall of the mounting frame 7, the spring 901 is connected with the movable rod 902, the movable rod 902 is slidably connected on the inner wall of the mounting frame 7, the rotating roller 903 is connected to the movable rod 902 through a bearing, the rotating roller 903 penetrates through the through hole 8, the spring 901, the movable rod 902 and the rotating roller 903 are all provided with a plurality of groups, and the groups are equally spaced on the inner wall of the mounting frame 7, the friction between the pin shaft and the through hole 8 can be reduced through the rotation of the rotating roller 903 on the movable rod 902, the frictional resistance between the pin shaft and the through hole 8 in the mechanical transmission process can be reduced, the rotating mechanism can be contracted to the inner wall of the mounting frame 7 under the elastic force of the spring 901, after installation, the rotating roller 903 is attached to the pin shaft, so that the installation is convenient.

The working principle is as follows: when the adjustable pin bush is used, when a pin shaft is installed, the pin shaft can penetrate into the through hole 8 under the elastic force action of the spring 901 on the inner side of the installation frame 7, the rotating roller 903 is contracted into the installation frame 7, then the rotating roller 903 on the movable rod 902 is driven to be attached to the surface of the pin shaft under the elastic force action of the spring 901, the installation is convenient, after the installation, the limiting rings 4 at the two ends of the pin bush main body 1 are driven to drive the threaded rings 3 to rotate in the threaded grooves 2 by rotating the limiting rings 4, the threaded rings 3 and the limiting rings 4 are driven to move outwards, the limiting rings 4 are attached to the two ends of the pin shaft to reduce gaps, the abrasion between the two ends of the pin shaft and the limiting rings 4 can be reduced by matching the abrasion-resistant layer 5 on the surface of the pin bush main body 1, the filling layer 6 made of rubber materials between the pin bush main body 1 and the installation frame 7 can reduce the vibration of the pin bush main body 1 in the transmission process of machinery, the friction between the pin shaft and the through hole 8 can be reduced by matching the rotation of the rotating roller 903 attached to the surface of the pin shaft, the friction resistance between the pin shaft and the through hole 8 in the mechanical transmission process is reduced, the service life is prolonged, and the whole operation is completed, and the content which is not described in detail in the specification belongs to the prior art which is known by the professional person in the field.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. An adjustable pin bushing, includes pin bushing main part (1) and slewing mechanism (9), its characterized in that:

the wear-resistant pin bush comprises a pin bush body (1), wherein thread grooves (2) are formed in two ends of the inner side of the pin bush body (1), a thread ring (3) is connected to the thread grooves (2) in a threaded mode, a limiting ring (4) is fixed to the outer side of the thread ring (3), a wear-resistant pad (5) is fixed to the surface of the outer side of the limiting ring (4), a filling layer (6) is fixed to the inner side of the pin bush body (1), a mounting frame (7) is fixed to the inner side of the filling layer (6), and meanwhile a through hole (8) is formed in the inner side of the mounting frame (7);

and the rotating mechanism (9) is used for reducing abrasion between the pin shaft and the through hole (8), and the rotating mechanism (9) is arranged on the inner wall of the mounting frame (7).

2. An adjustable pin bushing as set forth in claim 1 wherein: slewing mechanism (9) include spring (901), movable rod (902) and live-rollers (903), spring (901) are fixed at the inner wall both ends of mounting bracket (7), and spring (901) are connected with movable rod (902), movable rod (902) sliding connection is on the inner wall of mounting bracket (7), and the bearing is connected with live-rollers (903) on movable rod (902), and live-rollers (903) run through hole (8) simultaneously.

3. An adjustable pin bushing as set forth in claim 1 wherein: the thread groove (2), the thread ring (3), the limiting ring (4) and the wear pad (5) are provided with two groups, and the two groups are symmetrically arranged.

4. An adjustable pin bushing as set forth in claim 1 wherein: the filling layer (6) is made of rubber.

5. An adjustable pin bushing as set forth in claim 2 wherein: the springs (901), the movable rods (902) and the rotating rollers (903) are all provided with multiple groups, and the multiple groups are arranged on the inner wall of the mounting rack (7) at equal intervals.