CN211472625U

CN211472625U - Device for preventing bucket from falling off by using hinge

Info

Publication number: CN211472625U
Application number: CN201922481285.6U
Authority: CN
Inventors: 钱雪锋; 张文君
Original assignee: Shanghai Dunke Machinery Co ltd
Current assignee: Shanghai Dunke Machinery Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-11
Anticipated expiration: 2029-12-31

Abstract

The utility model provides an utilize hinge to prevent bucket dropout device, includes the frame, the frame including two parallel arrangement's in opposite directions curb plate, the anterior of curb plate be provided with first guide rail along its length direction, first guide rail in be provided with the support hook, the lower part of support hook extends to the below of frame and has a second draw-in groove, the rear portion of curb plate is provided with the second guide rail along its length direction, the second guide rail in be provided with the slider. The piston rod is pushed to move horizontally to the left side through the locking cylinder, the supporting hook is further driven to slide along the side plate, the second clamping groove card on one side of the supporting hook is pushed to be connected with the shaft on one side of the bucket, the clamping groove card is connected with the shaft on the other side of the bucket, the supporting hook continuously moves, the first clamping groove and the second clamping groove are clamped with the shaft on one side of the bucket, the first clamping groove is plugged below a rocker protruding from the inside of the first clamping groove, and the shaft inside the first clamping groove is prevented from falling off. Use the utility model discloses afterwards, even if receive huge impact when the bucket, also can not become flexible.

Description

Device for preventing bucket from falling off by using hinge

Technical Field

The utility model relates to the field of machinary, especially, relate to the excavator, in particular to excavator bucket specifically is an utilize hinge to prevent that excavator bucket from coming off device.

Background

Swing cylinder is used in more and more extensively on the excavator, and the buckle that swing cylinder and bucket are connected is formed by several steel sheets concatenations, wears two connecting shafts and the bucket of bucket one side and is connected, and large-scale bucket weighs hundreds of kilograms, needs many people cooperation installation, can't guarantee moreover that two mounting hole distances coincide with the connecting shaft wheel base accuracy of bucket, and when the bucket atress, must have not hard up clearance, receives the work impact for a long time, and it can be bigger and bigger to become flexible.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an utilize hinge to prevent that bucket from droing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a device for preventing a bucket from falling off by utilizing a hinge comprises a frame, wherein the frame comprises two side plates which are arranged in parallel in opposite directions, a first guide rail is arranged at the front part of each side plate along the length direction of the side plate, a supporting hook is arranged in the first guide rail, a sliding pair is arranged between the supporting hook and the first guide rail, the lower part of the supporting hook extends to the lower part of the frame and is provided with a second clamping groove which is opened towards the front end of the frame, a second guide rail is arranged at the rear part of each side plate along the length direction of the side plate, a sliding block is arranged in the second guide rail, a sliding pair is arranged between the sliding block and the second guide rail, the sliding block is fixedly connected with the rear end of a cylinder body of a locking cylinder, the front end of a piston rod in the locking cylinder is fixedly connected with the supporting hook, the rear part of each side plate extends to the lower part of the frame and is provided with a first clamping groove which is opened towards the rear end of, a rocker is hinged to the first pin shaft, the rocker is intersected with the first clamping groove around the rotating circumference of the first pin shaft, a hinge shaft is fixedly arranged at the rear end of a cylinder body of the locking cylinder, a connecting rod is hinged to the hinge shaft, one end of the connecting rod is hinged to one end of the rocker through a second pin shaft, a first limiting block and a second limiting block are fixedly arranged in the side plate, the first limiting block is located behind the supporting hook, the second limiting block is located between the second pin shaft and the first limiting block and located within the circumferential range of the connecting rod rotating around the hinge shaft, and the locking cylinder is connected with a hydraulic lock through a hydraulic pipeline.

Furthermore, a spring fixing seat is fixedly arranged in the side plate, the spring fixing seat is connected with one end of a return spring, and the other end of the return spring is connected with a cylinder body of the locking cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: the piston rod is pushed by the locking cylinder to move horizontally to the left side so as to drive the supporting hook to slide along the side plate, the second clamping groove on one side of the supporting hook is pushed to be clamped on the connecting shaft on one side of the bucket, the clamping groove is clamped on the connecting shaft on the other side of the bucket, the supporting hook continuously moves, the first clamping groove and the second clamping groove are clamped with the connecting shaft on one side of the bucket, because the distance between the connecting shafts on two sides of the bucket is fixed, when the piston rod of the locking cylinder continuously pushes the supporting hook, the connecting shaft on one side of the bucket pushes the supporting hook to move continuously, so that one side of the locking cylinder moves rightwards along the side plate in sliding connection with the locking cylinder, at the moment, the locking cylinder moves rightwards, the reset spring is pulled to extend, when the locking cylinder moves rightwards for a certain position, the locking cylinder cannot move continuously, when the locking cylinder slides rightwards, the hinge shaft is driven to slide along the, the lower position of rocker is in the inside of first draw-in groove, plugs up first draw-in groove through outstanding rocker below inside first draw-in groove, prevents to be located the inside even axle of first draw-in groove and drops.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the retraction of the support hook according to the present invention;

fig. 3 is a schematic structural view of a side plate of the present invention.

In the figure: 1. a spring fixing seat; 2. a return spring; 3. a locking cylinder; 4. hydraulic locking; 5. a side plate; 6. a second pin shaft; 7. a rocker; 8. a first pin shaft; 9. a hinge shaft; 10. a first card slot; 11. a connecting rod; 12. a second limiting block; 13. a first stopper; 14. a support hook; 15. a second card slot; 16. a slider; 17. a piston rod; 18. and a frame.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and 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.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a device for preventing a bucket from falling off by utilizing a hinge comprises a frame 18, wherein the frame 18 comprises two side plates 5 which are arranged in parallel in opposite directions, a first guide rail is arranged at the front part of each side plate 5 along the length direction of the side plate, a supporting hook 14 is arranged in the first guide rail, a sliding pair is arranged between each supporting hook 14 and the first guide rail, the lower part of each supporting hook 14 extends to the lower part of the frame 18 and is provided with a second clamping groove 15 which is opened towards the front end of the frame 18, a second guide rail is arranged at the rear part of each side plate 5 along the length direction of the side plate, a sliding block 16 is arranged in the second guide rail, a sliding pair is arranged between each sliding block 16 and the second guide rail, each sliding block 16 is fixedly connected with the rear end of a cylinder body of a locking cylinder 3, the front end of a piston rod 17 in the locking cylinder 3 is fixedly connected with the supporting hook 14, the rear part of each side plate 5 extends to the lower part of the frame 18 and is provided with, a first pin shaft 8 is fixedly arranged in the side plate 5 above the first clamping groove 10, a rocker 7 is hinged on the first pin shaft 8, the rocker 7 is intersected with the first clamping groove 10 around the rotation circumference of the first pin shaft 8, a hinge shaft 9 is fixedly arranged at the rear end of the cylinder body of the locking cylinder 3, a connecting rod 11 is hinged on the hinge shaft 9, one end of the connecting rod 11 is hinged with one end of the rocker 7 through a second pin shaft 6, a first limiting block 13 and a second limiting block 12 are fixedly arranged in the side plate 5, the first limiting block 13 is positioned behind the supporting hook 14, the second limiting block 12 is positioned between the second pin shaft 6 and the first limiting block 13 and positioned in the circumferential range where the connecting rod 11 rotates around the hinge shaft 9, and the locking cylinder 3 is connected with a hydraulic lock 4 through a hydraulic pipeline.

Further, a spring fixing seat 1 is fixedly arranged in the side plate 5, the spring fixing seat 1 is connected with one end of a return spring 2, and the other end of the return spring 2 is connected with a cylinder body of the locking cylinder 3.

The working principle of the embodiment is as follows: the supporting hook 14 slides along a first guide rail in the side plate 5, the hinge shaft 9 at the rear end of the locking cylinder 3 slides along a second guide rail in the side plate 5, when the piston rod 17 extends out, the supporting hook 14 extends out to tightly push against a front shaft of the bucket, the rear shaft of the bucket slides into a first clamping groove 10 at the rear part of the side plate 5, the hinge shaft 9 moves backwards to enable a hinge formed by the connecting rod 11 and the rocker 7 to contract, and the rocker 7 protrudes towards the inside of the first clamping groove 10 to prevent the rear shaft of the bucket from falling off.

When the locking cylinder 3 drives the supporting hook 14 to retract, the right side of the supporting hook 14 pushes against the first limiting block 13, the locking cylinder 13 moves forwards and stops when meeting the second limiting block 12, the driving hinge is opened, the rocker 7 withdraws from the first clamping groove 10, and the rear shaft of the excavator bucket is released.

The return spring 2 functions to provide an activation force when the hinge is retracted.

The utility model discloses synthesize and utilized hinge, hydraulic control technique, it is the effect of hydraulic pressure lock to point out, when stopping to locking the cylinder oiling, the hydraulic pressure lock pins two chambeies of hydro-cylinder oil liquid for even if the bucket receives huge impact, also can not become flexible.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an utilize hinge to prevent bucket dropout device which characterized in that: the locking device comprises a frame, the frame comprises two side plates which are arranged in parallel in opposite directions, a first guide rail is arranged at the front part of each side plate along the length direction of the side plate, a supporting hook is arranged in the first guide rail, a sliding pair is arranged between the supporting hook and the first guide rail, the lower part of the supporting hook extends to the lower part of the frame and is provided with a second clamping groove which is opened towards the front end of the frame, a second guide rail is arranged at the rear part of each side plate along the length direction of the side plate, a sliding block is arranged in the second guide rail, a sliding pair is arranged between the sliding block and the second guide rail, the sliding block is fixedly connected with the rear end of a cylinder body of a locking cylinder, the front end of a piston rod in the locking cylinder is fixedly connected with the supporting hook, the rear part of each side plate extends to the lower part of the frame and is provided with a first clamping groove which is opened towards the rear end of the, a rocker is hinged to the first pin shaft, the rocker is intersected with the first clamping groove around the rotating circumference of the first pin shaft, a hinge shaft is fixedly arranged at the rear end of a cylinder body of the locking cylinder, a connecting rod is hinged to the hinge shaft, one end of the connecting rod is hinged to one end of the rocker through a second pin shaft, a first limiting block and a second limiting block are fixedly arranged in the side plate, the first limiting block is located behind the supporting hook, the second limiting block is located between the second pin shaft and the first limiting block and located within the circumferential range of the connecting rod rotating around the hinge shaft, and the locking cylinder is connected with a hydraulic lock through a hydraulic pipeline.

2. The device for preventing the bucket from falling off by using the hinge as claimed in claim 1, wherein: a spring fixing seat is fixedly arranged in the side plate and connected with one end of a return spring, and the other end of the return spring is connected with a cylinder body of the locking cylinder.