CN220503991U - Side shifting mechanism for rear excavating arm of excavating loader - Google Patents

Abstract

The utility model relates to the technical field of engineering machinery, and particularly discloses a rear excavating arm side shifting mechanism of an excavating loader, wherein ear seats are respectively fixed at two ends of the top surface of a frame-shaped rack, a fixed frame is fixedly connected between the front wall of the frame-shaped rack and a loader main body, a sliding frame comprises a vertical plate which is horizontally and fixedly clamped on the rear wall of the frame-shaped rack and an ear plate which is horizontally fixed on the position, close to the top end, of the rear wall of the vertical plate, the front end of a rear excavating arm base is connected with the ear plate, a connecting frame is fixed at the top end of the vertical plate, a piston cylinder of a double-output-shaft oil cylinder is fixed on the connecting frame, and two ends of a piston rod of the double-output-shaft oil cylinder are respectively connected with the ear seats in a rotating manner; the problem that the rear excavating arm of the excavating loader is inconvenient to shift and adjust is well solved.

Description

Side shifting mechanism for rear excavating arm of excavating loader

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a side shifting mechanism of a rear excavating arm of an excavating loader.

Background

The backhoe loader is commonly called as "busy at both ends". The front end of the device is provided with a loading mechanism, and the rear end of the device is provided with an excavating mechanism. During engineering construction, the role of the manipulator of the excavator can be changed from the loader to the excavator only by rotating the seat. The excavating loader is mainly used for highway construction and maintenance in cities and rural areas, cable laying, electric power and airport engineering, municipal construction, farmland water conservancy construction, rural residential construction, mountain-opening and stone-taking and various building construction projects worked on by various small building teams. In addition, "busy at both ends" belongs to one of the small-sized multifunctional engineering machines, and is generally used in small engineering after completion of large engineering. It can be matched with various working devices and auxiliary tools to perform various operations such as digging, shoveling, pavement crushing, leveling, trench digging, pipeline laying, etc.

However, the rear boom base of the backhoe loader widely used at present is often fixedly connected to the main body, and it is difficult to adjust the rear boom such as to be offset with respect to the main body. The conventional method is to realize the whole movement of the excavating and loading machine by using a bucket top land mode so as to realize the purpose of the offset adjustment of the rear excavating arm. However, the method has low adjustment precision, the service life of parts of the excavating part of the machine is easily shortened, the whole machine is relatively complicated to adjust, and certain errors exist between the machine and the excavating direction after adjustment, so that the excavating work is not facilitated. There is therefore a need for a backhoe arm side shift mechanism for a backhoe loader.

Disclosure of Invention

The utility model designs a rear excavating arm side shifting mechanism of an excavating loader, aiming at solving the problem that the rear excavating arm of the excavating loader is inconvenient to shift and adjust in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a backhoe arm side moves mechanism behind backhoe loader, frame shape frame top surface both ends are fixed with the ear seat respectively, mount fixed connection is in between frame shape frame front wall and the loader main part, slide the frame including horizontal slip cartridge in the riser of frame shape frame back wall and be fixed in along the horizontal direction the riser of riser back wall near top bottom position, and back digger arm base front end connect in the riser, the link is fixed in the top of riser, the piston cylinder of two go out axle hydro-cylinders is fixed in on the link, the both ends of two play axle hydro-cylinder piston rods connect respectively in the ear seat.

Preferably, the vertical plate is provided with slotted holes at positions between the two lug plates, transverse plates horizontally crossing the slotted holes are respectively fixed at upper and lower side positions of the center of the rear wall of the vertical plate, two lantern rings are rotatably installed between the transverse plates, steering oil cylinders are fixedly sleeved in the lantern rings respectively, the ends of piston rods of the steering oil cylinders are respectively and rotatably connected with two sides of the front part of the rear excavating arm base, and the lug plates are rotatably connected with the front end of the rear excavating arm base.

Preferably, the frame-shaped rack rear wall is close to the top bottom end position and is fixed with the spout along the horizontal direction respectively, the riser rear wall is close to the four corners position and is fixed with the clamp cylinder respectively, the front end of clamp cylinder piston rod runs through the riser back slip cartridge in the horizontal notch of spout, just the tip cover that the clamp cylinder piston rod runs through horizontal notch is equipped with the stopper.

Preferably, the two sides of the ear plate are respectively fixed with a cushion block.

Preferably, the bottom end of the connecting frame is fixedly connected to the top end of the vertical plate by using a bolt.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the side shifting mechanism of the rear excavating arm of the backhoe loader, the sliding frame is driven to horizontally slide along the frame-shaped rack through the double-output-shaft oil cylinder, so that the left-right offset adjustment of the rear excavating arm can be flexibly carried out.

2. The rear excavating arm side shifting mechanism of the backhoe loader is simple in overall structure and easy to install, and is convenient to widely apply in the field of backhoe loaders.

Drawings

FIG. 1 is a first perspective view of the whole structure of the present utility model;

FIG. 2 is a second perspective view of the whole structure of the present utility model;

fig. 3 is a schematic perspective view of a sliding frame according to the present utility model.

In the figure: 1-a frame-shaped frame; 11-ear mount;

2-fixing frames;

3-sliding grooves;

4-a sliding frame; 41-risers; 42-slots; 43-ear plate; 44-collar; 45-clamping an oil cylinder; 46-a cross plate; 47-limiting blocks; 48-cushion blocks;

5-connecting frames;

6-double-output shaft oil cylinders;

7-steering cylinder.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution, in a rear excavating arm side shifting mechanism of an excavating loader, ear seats 11 are respectively fixed at two ends of a top surface of a frame-shaped frame 1, a fixing frame 2 is fixedly connected between a front wall of the frame-shaped frame 1 and a loader main body, a sliding frame 4 comprises a vertical plate 41 horizontally sliding and clamped on a rear wall of the frame-shaped frame 1, and an ear plate 43 horizontally fixed on a rear wall of the vertical plate 41 near a top end position, a front end of a rear excavating arm base is connected with the ear plate 43, a connecting frame 5 is fixed at a top end of the vertical plate 41, a piston cylinder of a double-output-shaft cylinder 6 is fixed on the connecting frame 5, and two ends of a piston rod of the double-output-shaft cylinder 6 are respectively connected with the ear seats 11.

The fixing frame 2 is a pair of frame bodies, the rear parts of the fixing frames are welded on the front wall of the frame-shaped frame 1, and the front ends of the fixing frames are fixed on the rear end of the body of the excavating loader by bolts. The rear boom base is installed between the ear plates 43, and the two oil ports of the double-output-shaft oil cylinder 6 are respectively connected to the hydraulic pump system of the loader-digger through high-pressure rubber pipes, and the connection mode of the oil ports is similar to that of a common hydraulic oil cylinder. The double-spool cylinder 6 is in the form of a double-spool cylinder manufactured by mechanical manufacturing company, for example, the balance of Changzhou, or the like.

When the oil port on the right side of the double-output-shaft oil cylinder 6 is fed with liquid and the oil port on the left side is returned with liquid, the piston cylinder of the double-output-shaft oil cylinder 6 is sleeved right relative to the piston rod, and the piston cylinder drives the sliding frame 4 to slide right through the connecting frame 5, so that the whole right deviation of the rear excavating arm is realized; when the left side oil port of the double-outlet oil cylinder 6 is used for feeding liquid and the right side oil port is used for returning liquid, the whole rear excavating arm is deviated leftwards.

The vertical plate 41 is provided with a slotted hole 42 at a position between the two lug plates 43, transverse plates 46 horizontally crossing the slotted hole 42 are respectively fixed at the upper side and the lower side of the center of the rear wall of the vertical plate 41, two lantern rings 44 are rotatably arranged between the two transverse plates 46, steering oil cylinders 7 are respectively fixedly sleeved in the lantern rings 44, the ends of piston rods of the steering oil cylinders 7 are respectively rotatably connected with two sides of the front part of the rear digging arm base, and the lug plates 43 are rotatably connected with the front end of the rear digging arm base. The corresponding expansion and contraction of the two steering cylinders 7 can realize the adjustment of the whole left-right swing of the rear excavating arm, wherein when the left steering cylinder 7 extends and the right steering cylinder 7 contracts, the whole rear excavating arm swings rightwards in a steering way; similarly, when the steering cylinder 7 on the right side is extended and the steering cylinder 7 on the left side is contracted, the rear excavator arm swings as a whole in a steering direction to the left.

The back wall of the frame-shaped frame 1 is close to the top bottom end and is respectively fixed with a chute 3 along the horizontal direction, the back wall of the vertical plate 41 is respectively fixed with a clamping cylinder 45 close to four corners, the front end of a piston rod of the clamping cylinder 45 penetrates through the vertical plate 41 and is slidably clamped in a horizontal notch of the chute 3, and a limiting block 47 is sleeved at the end part of the piston rod of the clamping cylinder 45 penetrating through the horizontal notch. When the double-output-shaft oil cylinder 6 drives the sliding frame 4 to slide and deviate left and right, a piston rod of the clamping oil cylinder 45 slides in a horizontal notch of the sliding groove 3, and the piston rod not only plays a supporting role on the sliding frame 4, but also plays a guiding role on the sliding frame 4 to slide left and right; after the sliding frame 4 moves in place, the clamping cylinder 45 contracts, so that the limiting block 47 is pressed on the plate body above and below the horizontal notch, and the effect of positioning and fixing the sliding frame 4 is achieved.

Two sides of the ear plate 43 are respectively fixed with cushion blocks 48. The cushion block 48 may be made of rubber, so as to avoid rigid collision between the rear digging arm base and the ear plate 43 when the steering cylinder 7 drives the rear digging arm to swing in a left-right direction.

The bottom of link 5 uses bolt fixed connection at the top of riser 41 for be convenient for carry out the dismouting between link 5 and riser 41.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While embodiments of the utility model have been shown and described, it is within the scope of this patent to use similar means in the field of pipe welding and extensions to the field of this patent.

It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A backhoe arm side shift mechanism for a backhoe loader, comprising:

the device comprises a frame-shaped rack (1), wherein ear seats (11) are respectively fixed at two ends of the top surface of the frame-shaped rack (1);

the fixing frame (2), the fixing frame (2) is fixedly connected between the front wall of the frame-shaped rack (1) and the loader main body;

the sliding frame (4) comprises a vertical plate (41) which is horizontally and slidably clamped on the rear wall of the frame-shaped rack (1) and an ear plate (43) which is horizontally fixed on the rear wall of the vertical plate (41) near the top bottom end, and the front end of a rear digging arm base is connected with the ear plate (43);

a connecting frame (5), wherein the connecting frame (5) is fixed at the top end of the vertical plate (41); and the piston cylinder of the double-output-shaft oil cylinder (6) is fixed on the connecting frame (5), and two ends of a piston rod of the double-output-shaft oil cylinder (6) are respectively connected with the lug seat (11).

2. A backhoe loader rear boom side shift mechanism as defined in claim 1, wherein: the vertical plate (41) is provided with slotted holes (42) at positions between the two lug plates (43), transverse plates (46) horizontally crossing the slotted holes (42) are respectively fixed at upper and lower side positions of the rear wall center of the vertical plate (41), two lantern rings (44) are rotatably installed between the transverse plates (46), steering oil cylinders (7) are fixedly sleeved in the lantern rings (44) respectively, the ends of piston rods of the steering oil cylinders (7) are respectively rotatably connected with two sides of the front portion of the rear digging arm base, and the lug plates (43) are rotatably connected with the front end of the rear digging arm base.

3. A backhoe loader rear boom side shift mechanism as set forth in claim 2, wherein: the sliding chute is characterized in that a sliding chute (3) is respectively fixed at the position, close to the top end, of the rear wall of the frame-shaped rack (1) along the horizontal direction, clamping oil cylinders (45) are respectively fixed at the positions, close to the four corners, of the rear wall of the vertical plate (41), the front ends of piston rods of the clamping oil cylinders (45) penetrate through the vertical plate (41) and are slidably clamped in horizontal slots of the sliding chute (3), and limiting blocks (47) are sleeved at the ends, penetrating through the horizontal slots, of the piston rods of the clamping oil cylinders (45).

4. A backhoe loader rear boom side shift mechanism as set forth in claim 3, wherein: cushion blocks (48) are respectively fixed on two sides of the lug plate (43).

5. A backhoe loader rear boom side shift mechanism as defined in claim 1, wherein: the bottom end of the connecting frame (5) is fixedly connected to the top end of the vertical plate (41) by using bolts.