CN220847800U

CN220847800U - Chassis bracket of excavator

Info

Publication number: CN220847800U
Application number: CN202322714649.7U
Authority: CN
Inventors: 李良波; 陈桂祥; 陈波
Original assignee: Ningbo Jinheng Machinery Manufacturing Co ltd
Current assignee: Ningbo Jinheng Machinery Manufacturing Co ltd
Priority date: 2023-10-10
Filing date: 2023-10-10
Publication date: 2024-04-26
Anticipated expiration: 2033-10-10

Abstract

The utility model discloses a chassis bracket of an excavator, which comprises a chassis, wherein two groups of U-shaped frames are symmetrically arranged on the left side and the right side of the top of the chassis, two connecting rods are fixedly arranged on the front side and the rear side of one opposite side of each U-shaped frame, supporting pipes are fixedly arranged on the front side and the rear side of the top of each U-shaped frame, a buffer air bag is fixedly arranged at the bottom of an inner cavity of each supporting pipe, a supporting rod is fixedly arranged at the top of each buffer air bag, a placing plate penetrates through each supporting pipe and is fixedly arranged at the top of each supporting rod, a buffer spring I is movably sleeved on the outer surface of each supporting rod, a connecting plate is fixedly arranged at the center of one opposite side of each U-shaped frame, and a mounting seat is fixedly arranged at the top of each connecting plate.

Description

Chassis bracket of excavator

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to an excavator chassis bracket.

Background

An excavator is an earth moving machine that excavates material above or below a deck with a bucket and loads the material into a transport vehicle or unloads the material to a storage yard. The materials excavated by the excavator are mainly soil, coal, silt and soil and rock after pre-loosening. In recent years, development of the construction machine is relatively rapid, and the excavator has become one of the most important construction machines in engineering construction.

The chassis body of the excavator bears the weight of the whole excavator, and in the working process of the excavator, the chassis body is frequently vibrated and impacted due to the cyclic reciprocating motion of the excavator working device and the rotating device, so that the loss of the bottom plate support and parts thereof is serious, but the traditional partial chassis support cannot well absorb and buffer, and the excavator is seriously damaged under the long-term vibration and abrasion, so that the service life and the safety and stability are influenced.

Disclosure of utility model

The utility model aims to provide an excavator chassis support, which solves the technical problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the chassis bracket of the excavator comprises a chassis, wherein two groups of U-shaped frames are symmetrically arranged on the left side and the right side of the top of the chassis, and supporting pipes are fixedly arranged on the front side and the rear side of the top of the U-shaped frames;

the bottom of the inner cavity of the support tube is fixedly provided with a buffer air bag, the top of the buffer air bag is fixedly provided with a support rod, the top of the support rod penetrates through the support tube and is fixedly provided with a placing plate, and the outer surface of the support rod is movably sleeved with a buffer spring I;

The top of the placing plate is fixedly provided with a transverse damping mechanism;

and an auxiliary buffer part is fixedly arranged on one side of the U-shaped frame opposite to the U-shaped frame.

Optionally, horizontal damper includes the board of keeping out, the quantity of keeping out the board is two, two the board of keeping out is fixed the setting respectively and is in the left and right sides at board top is placed, the spout has been seted up to the opposite one side of keeping out the board, the inner chamber of spout is fixed respectively and is provided with slide rail and gag lever post, the front and back bilateral symmetry slip at slide rail top is provided with the slider, the fixed slide that is provided with in one side opposite to the slider, the inner chamber movable sleeve of slide is established the surface of gag lever post, the surface movable sleeve of gag lever post is equipped with spacing spring.

Optionally, the fixed connecting seat that is provided with in one side that the slide is relative, the inner chamber movable sleeve of connecting seat is equipped with the movable rod, the activity of one side that the movable rod is relative is provided with the fly leaf, the front and back bilateral symmetry of fly leaf bottom is provided with the movable block, the cooperation has been seted up at the top of placing the board the movable groove that the movable block used, the front and back bilateral symmetry of the opposite side of fly leaf is provided with the telescopic link, the bottom of telescopic link with the top fixed connection of placing the board, the front and back bilateral symmetry of placing the board top is provided with the support frame, the top of support frame is fixed and is provided with the loading board.

Optionally, the auxiliary buffer part includes the connecting plate, the left and right sides of connecting plate with the top fixed connection of the opposite one side of U type frame, the fixed mount pad that is provided with in top of connecting plate, the top fixedly connected with support column of mount pad, the surface movable sleeve of support column is equipped with buffer spring two, two sets of the fixed hydraulic cylinder that is provided with in one side that the U type frame is relative, hydraulic cylinder's top with place the bottom fixed connection of board, two the front and back both sides of the opposite one side bottom of U type frame are all fixedly provided with the connecting rod.

Optionally, a side opposite to the limit spring is fixedly connected with a side opposite to the sliding seat, and a side opposite to the limit spring is fixedly connected with the inner wall of the sliding groove.

Optionally, the bottom of buffer spring one with the top fixed connection of stay tube, buffer spring one the top with place the bottom fixed connection of board, buffer spring two the bottom with the top fixed connection of mount pad, buffer spring two the top with place the bottom fixed connection of board, the both sides of chassis are fixed and are provided with the track main part.

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

1. When the excavator works, the placing plate drives the support rod at the bottom to move up and down in the support tube when the chassis is impacted or vibrated longitudinally, the buffer air bag is extruded, the buffer spring I is compressed and reset continuously, the buffer spring II is driven to deform on the surface of the support column, the hydraulic cylinder is driven to reciprocate in a telescopic mode, the impact force of the chassis support in the longitudinal direction is effectively buffered and damped, and the safety and the service life of the chassis support are improved.

2. According to the utility model, when the excavator works, the supporting frames at two sides of the bottom and the movable plate at the bottom are driven to move outwards by the bearing plate in the transverse impact or vibration process, the telescopic rod is driven to stretch by the movable plate, the movable block at the bottom moves in the moving groove, meanwhile, the movable rod drives the connecting seat to move oppositely, the impact force received by the connecting seat is dispersed, the sliding block synchronously moves on the sliding rail, the sliding seat extrudes the limiting spring on the surface of the limiting rod, the limiting spring buffers the impact force received by the limiting spring to generate deformation, and after the impact force is reduced, the limiting spring drives the sliding seat and other parts to reset, so that the safety and stability of the chassis bracket are further improved, and the service life of the excavator is ensured.

Drawings

FIG. 1 is a front view of the structure of the present utility model;

FIG. 2 is a front view of the transverse shock absorbing mechanism of the present utility model;

FIG. 3 is a side cross-sectional view of a partial structure of the present utility model;

FIG. 4 is an enlarged view of the structure A of FIG. 3 in accordance with the present utility model;

FIG. 5 is a side view of the structure of the present utility model;

fig. 6 is a detailed view of the structure of the connecting seat and the sliding seat of the present utility model.

In the figure: the crawler belt comprises a crawler belt main body, a 2-connecting rod, a 3-U-shaped frame, a 4-hydraulic oil cylinder, a 5-chassis, an 8-movable plate, a 9-supporting frame, a 10-bearing plate, an 11-bearing plate, a 12-sliding rail, a 13-limiting spring, a 14-placing plate, a 15-movable rod, a 16-connecting seat, a 17-sliding seat, a 18-sliding block, a 19-supporting column, a 20-second buffer spring, a 21-mounting seat, a 22-buffer air bag, a 23-supporting tube, a 24-supporting rod, a 25-first buffer spring, a 26-connecting plate, a 27-telescopic rod, a 28-moving groove, a 29-limiting rod and a 30-moving block.

Detailed Description

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.

Example 1

Referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides an excavator chassis support, including chassis 5, the left and right sides symmetry at chassis 5 top is provided with two sets of U type framves 3, the quantity of every U type frame 3 of group is two, the front and back both sides of two U type framves 3 relative one side are all fixed be provided with connecting rod 2, the front and back both sides at U type frame 3 top are all fixed be provided with stay tube 23, the bottom of stay tube 23 inner chamber is fixed be provided with buffer airbag 22, buffer airbag 22's top is fixed be provided with bracing piece 24, bracing piece 24's top runs through stay tube 23 and is fixed be provided with place board 14, bracing piece 24's surface movable sleeve is equipped with buffer spring one 25, the center department of two U type framves 3 relative one sides is fixed be provided with connecting plate 26, connecting plate 26's top is fixed be provided with mount pad 21, the top fixedly connected with support column 19 of mount pad 21, the surface movable sleeve of support column 19 is equipped with buffer spring two 20, the relative one side of two sets of U type framves 3 is fixed be provided with hydraulic cylinder 4, hydraulic cylinder 4's top and place board 14's bottom fixed connection.

More specifically, in this embodiment, when the chassis 5 is impacted or vibrated longitudinally during the working process of the excavator, the U-shaped frame 3 and the connecting rod 2 support and fix the components at the top, the placing plate 14 drives the supporting rod 24 at the bottom to move up and down in the supporting tube 23, the buffer air bag 22 is extruded, the buffer spring one 25 is compressed and reset continuously, the buffer spring two 20 is driven to deform on the surface of the supporting column 19, and the hydraulic cylinder 4 at the top of the U-shaped frame 3 is driven to reciprocate telescopically, so that the longitudinal impact force applied to the chassis 5 bracket is buffered and damped effectively, and the safety and service life of the chassis bracket are improved.

Still further, transverse damping mechanism includes the butt plate 11, the quantity of butt plate 11 is two, the fixed left and right sides at placing the board 14 top that sets up respectively of two butt plates 11, the spout has been seted up to the opposite one side of butt plate 11, the inner chamber of spout is fixed respectively and is provided with slide rail 12 and gag lever post 29, the front and back bilateral symmetry slip at slide rail 12 top is provided with slider 18, the fixed slide 17 that is provided with in one side that the slider 18 is opposite, the inner chamber movable sleeve of slide 17 is established at the surface of gag lever post 29, the surface movable sleeve of gag lever post 29 is equipped with spacing spring 13, the fixed connecting seat 16 that is provided with in one side that the slide 17 is opposite, the inner chamber movable sleeve of connecting seat 16 is equipped with movable rod 15, the movable plate 8 is provided with to the activity of one side that the movable rod 15 is relative, the movable plate 8 is provided with movable block 30 in front and back bilateral symmetry in movable plate 8 bottom, the movable groove 28 that the cooperation movable block 30 used has been seted up at the top of placing the board 14, the front and back bilateral symmetry in one side of movable plate 8 is provided with telescopic link 27, the bottom and the top fixed connection of placing the board 14, the front and back bilateral symmetry at the top of placing the board 14 top is provided with support frame 9, the fixed bearing plate 10.

It is worth to say that, when the excavator works, the chassis 5 is impacted or vibrated transversely, the bearing plate 10 drives the supporting frames 9 at two sides of the bottom and the movable plate 8 at the bottom to move outwards, the movable plate 8 drives the telescopic rod 27 to stretch, the movable block 30 at the bottom moves in the moving groove 28, meanwhile, the movable rod 15 drives the connecting seat 16 to move oppositely, the impact force received by the movable block 18 is dispersed, the sliding rail 12 in the resisting plate 11 moves synchronously, the sliding seat 17 extrudes the limiting spring 13 on the surface of the limiting rod 29, the limiting spring 13 buffers the impact force received by the limiting spring to deform, and after the impact force is reduced, the limiting spring 13 drives the sliding seat 17 and other parts to reset, so that the safety and stability of the chassis bracket are further improved, and the service life of the excavator is guaranteed.

Example two

Further, on the basis of the above embodiment, the opposite side of the limiting spring 13 is fixedly connected with the opposite side of the sliding seat 17, the opposite side of the limiting spring 13 is fixedly connected with the inner wall of the sliding groove, the bottom of the buffering spring I25 is fixedly connected with the top of the supporting tube 23, the top of the buffering spring I25 is fixedly connected with the bottom of the placing plate 14, the bottom of the buffering spring II 20 is fixedly connected with the top of the mounting seat 21, the top of the buffering spring II 20 is fixedly connected with the bottom of the placing plate 14, and the two sides of the chassis 5 are fixedly provided with the crawler main body 1.

More specifically, in the present embodiment, the chassis 5 fixes and supports the track body 1, ensuring the horizontal movement of the excavator; the limiting spring 13 compresses and buffers the transverse impact force brought by the sliding seat 17, and the position of the limiting spring 13 is limited and fixed through the inside of the sliding groove, so that the deformation moving range of the limiting spring 13 is ensured; the buffer spring I25 is used for extruding and buffering the longitudinal impact force brought by the placing plate 14, and the placing plate 14 and the supporting tube 23 limit the deformation range of the buffer spring I25; the buffer spring two 20 can share the longitudinal impact force received by the buffer spring one 25, and the placing plate 14 and the mounting seat 21 limit the deformation movement range of the buffer spring two 20.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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

1. An excavator chassis support, comprising a chassis (5), characterized in that: two groups of U-shaped frames (3) are symmetrically arranged on the left side and the right side of the top of the chassis (5), and supporting pipes (23) are fixedly arranged on the front side and the rear side of the top of each U-shaped frame (3);

The bottom of the inner cavity of the supporting tube (23) is fixedly provided with a buffer air bag (22), the top of the buffer air bag (22) is fixedly provided with a supporting rod (24), the top of the supporting rod (24) penetrates through the supporting tube (23) and is fixedly provided with a placing plate (14), and the outer surface of the supporting rod (24) is movably sleeved with a buffer spring I (25);

The top of the placing plate (14) is fixedly provided with a transverse damping mechanism;

An auxiliary buffer part is fixedly arranged on one side of the U-shaped frame (3) opposite to the U-shaped frame.

2. An excavator chassis support as claimed in claim 1 wherein: the transverse shock absorption mechanism comprises two retaining plates (11), the two retaining plates (11) are fixedly arranged on the left side and the right side of the top of the placing plate (14) respectively, sliding grooves are formed in one opposite sides of the retaining plates (11), sliding rails (12) and limiting rods (29) are fixedly arranged in inner cavities of the sliding grooves respectively, sliding blocks (18) are symmetrically arranged on the front side and the rear side of the tops of the sliding rails (12) in a sliding mode, sliding seats (17) are fixedly arranged on one opposite sides of the sliding blocks (18), inner cavity movable sleeves of the sliding seats (17) are arranged on the outer surfaces of the limiting rods (29), and limiting springs (13) are movably sleeved on the outer surfaces of the limiting rods (29).

3. An excavator chassis support as claimed in claim 2 wherein: the utility model discloses a movable support, including slide (17) and movable plate (14), slide (17) are fixed to be provided with connecting seat (16) on one side opposite, the inner chamber movable sleeve of connecting seat (16) is equipped with movable rod (15), the activity of one side opposite of movable rod (15) is provided with fly leaf (8), the front and back bilateral symmetry of fly leaf (8) bottom is provided with movable block (30), the cooperation removal groove (28) that movable block (30) used have been seted up at the top of placing board (14), the front and back bilateral symmetry of one side opposite of fly leaf (8) is provided with telescopic link (27), the bottom of telescopic link (27) with the top fixed connection of placing board (14), the front and back bilateral symmetry at placing board (14) top is provided with support frame (9), the top of support frame (9) is fixed to be provided with loading board (10).

4. An excavator chassis support according to claim 3, wherein: the auxiliary buffering component comprises a connecting plate (26), the left side and the right side of the connecting plate (26) are fixedly connected with the top of one side opposite to the U-shaped frame (3), an installation seat (21) is fixedly arranged at the top of the connecting plate (26), a supporting column (19) is fixedly connected to the top of the installation seat (21), a buffering spring II (20) is movably sleeved on the outer surface of the supporting column (19), two groups of buffering springs are fixedly arranged on one side opposite to the U-shaped frame (3), hydraulic cylinders (4) are fixedly arranged on the two sides opposite to the U-shaped frame (3), connecting rods (2) are fixedly arranged on the front side and the rear side of the bottom of the opposite side of the U-shaped frame (3).

5. An excavator chassis support according to claim 3, wherein: one side opposite to the limit spring (13) is fixedly connected with one side opposite to the sliding seat (17), and one side opposite to the limit spring (13) is fixedly connected with the inner wall of the sliding groove.

6. An excavator chassis support as claimed in claim 2 wherein: the bottom of the buffer spring I (25) is fixedly connected with the top of the supporting tube (23), and the top of the buffer spring I (25) is fixedly connected with the bottom of the placing plate (14).

7. The excavator chassis support of claim 4 wherein: the bottom of the buffer spring II (20) is fixedly connected with the top of the mounting seat (21), the top of the buffer spring II (20) is fixedly connected with the bottom of the placing plate (14), and crawler main bodies (1) are fixedly arranged on two sides of the chassis (5).