Manned excavator with cab damping device

Abstract

The invention relates to the technical field of excavators, in particular to a manned excavator with a cab damping device.The manned excavator comprises an excavator body, a cab is arranged on one side of the excavator body, a seat body is fixedly installed in the cab through two sets of fixing frames, and the inner side of each set of fixing frame is slidably connected with a sliding block; a supporting frame is fixedly installed at the upper end of each sliding block, a strip-shaped hole is formed in the side, close to the seat body, of each supporting frame, and a driving part is installed between the two fixing frames and used for driving the sliding blocks and the supporting frames to move; when the excavator is vibrated, vibration force is transmitted to the seat, the sliding sleeve and the sliding plate on one side of the seat move on the outer side or the inner side of the supporting frame, the first transverse plate or the third transverse plate is driven to slide up and down on one side of the two supporting frames by extruding or stretching the spring, damping is conducted on the seat, meanwhile, the damper rapidly enables the seat to stop vibration, and therefore the excavator is protected. And the damping effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of excavators, and in particular to a manned excavator with a cab shock-absorbing device. Background Art

[0002] An excavator, also known as an excavator or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and load them into transport vehicles or unload them to a stockpile yard. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rock. Judging from the development of construction machinery in recent years, the development of excavators has been relatively rapid, and excavators have become one of the most important construction machinery in engineering construction.

[0003] Chinese patent CN 213268068 U discloses a cab shock-absorbing device and an excavator. The cab shock-absorbing device includes a shock-absorbing assembly, which includes a base plate, a slide rail, and a buffer. The base plate slides within the slide rail, and one end of the buffer is connected to the end of the base plate, while the other end of the buffer is connected to the end of the slide rail. The cab shock-absorbing device used in the excavator reduces vibration in the cab caused by the impact and inertia of the excavator's bumps, thereby increasing the driver's comfort while operating the excavator.

[0004] However, the above patent does not provide shock absorption settings for the seats. The seats used in the excavator cab are generally fixed structures without shock absorption function. Some seats with shock absorption function generally adopt one-way shock absorption, and their shock absorption performance is poor. Summary of the Invention

[0005] The object of the present invention is to provide a manned excavator with a cab shock-absorbing device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a manned excavator equipped with a cab shock-absorbing device, comprising: an excavator body, a cab disposed on one side of the excavator body, a seat body fixedly mounted in the cab via two sets of fixed frames, a slider slidably connected to the inner side of each set of fixed frames, a support frame fixedly mounted on the upper end of each slider, a strip-shaped hole formed on the side of the support frame adjacent to the seat body, and a driving component mounted between the two sets of fixed frames for driving the slider and the support frame to move; A fixed plate is fixedly installed on the outer side of the backrest of the seat body, and the outer end of the fixed plate is rotatably connected to the rotating rod 1 and the electric push rod, the other end of the rotating rod 1 is rotatably connected to the rotating rod 2, and the end of the rotating rod 2 away from the rotating rod 1 is rotatably connected to the slide plate, which is L-shaped and slidably connected to the support frame through a sliding component, and the output end of the electric push rod is rotatably connected to the lower side of the rotating rod 1 near the end of the rotating rod 2; A connecting column is fixedly installed on the outer side of one end of the seat body, and a sliding sleeve is fixedly installed on the outer end of the connecting column. The sliding sleeve is slidably connected to the outer end of the support frame. A buffer component is provided between the two support frames, and the sliding sleeve and the slide plate are both connected to the buffer component.

[0007] Preferably, the fixed frame is U-shaped, and fixing bars are fixedly installed on the left and right sides of the outer end of the fixed frame, bolt holes are provided on the fixing bars, and sliding bars are fixedly installed on the inner walls of the left and right ends of the fixed frame, and a limiting bar is fixedly installed on the inner wall of the bottom end of the fixed frame, and a sliding groove is provided on the left and right ends of the limiting bar.

[0008] Preferably, the lower end of the slider is provided with a sleeve groove corresponding to the limit bar, and the inner walls of the left and right ends of the sleeve groove are provided with slide bar 2 corresponding to slide bar 1, and the left and right ends of the limit bar are provided with slide bar 2 corresponding to slide bar 1. When the slider is inserted into the inner side of the fixed frame, the sleeve groove is slidably sleeved on the outer wall of the limit bar, and at the same time, slide bar 2 is slidably inserted into slide bar 1, and slide bar 1 is slidably inserted into slide bar 2.

[0009] Preferably, the driving component includes two side plates and a driving plate, the driving plate is fixedly installed between the two sliders, the two side plates are respectively fixedly installed between the front and rear ends of the two sets of fixed frames, and the driving plate and the side plates are located on the same horizontal line.

[0010] Preferably, a motor is fixedly mounted on the outer wall of one of the side panels, a screw is rotatably connected between the two side panels and a guide rod is fixedly mounted thereon, the output end of the motor is fixedly connected to one end of the screw through a coupling, and both the screw and the guide rod pass through the drive plate, the screw and the inner wall of the drive plate are threadedly connected, and the guide rod and the inner wall of the drive plate are slidingly connected.

[0011] Preferably, the sliding component includes a protrusion fixed on the inner side of the slide plate, a moving block is fixedly mounted on the side of the protrusion away from the slide plate, and a plurality of guide wheels are mounted on the outer end of the moving block.

[0012] Preferably, when the moving block is slidably inserted into the support frame, the guide wheel and the inner wall of the support frame are rollingly connected, while the outer wall of the protrusion and the inner wall of the strip hole are slidingly connected, and the slide slide is slidably fitted on the outer end of the support frame.

[0013] Preferably, the buffer component includes transverse plate 1, transverse plate 2 and transverse plate 3, transverse plate 1 is fixedly installed between the two slides, and transverse plate 2 is located at the lower end of transverse plate 1 and fixedly installed between the two support frames.

[0014] Preferably, a plurality of dampers and springs are evenly and fixedly installed between the first transverse plate and the second transverse plate, and the dampers and springs are staggered.

[0015] Preferably, there are two transverse plates three, both located at the lower end of transverse plate two, one of which is fixedly installed between the two sliding sleeves one, and the other is fixedly installed between the two support frames, and several dampers and springs are fixedly installed between the two transverse plates three.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When the excavator of the present invention is subjected to vibration, the vibration force is transmitted to the seat, and the sliding sleeve and the sliding plate on one side of the seat move on the outside or inside of the support frame, and carry the cross plate one or cross plate three to slide up and down on one side of the two support frames through the compression or tension spring, thereby reducing the shock of the seat. At the same time, the damper quickly stops the vibration of the seat, thereby increasing the shock absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a left side view of the connection between the seat body and the fixing frame of the present invention; Figure 3 This is a right side view of the connection between the seat body and the fixing frame of the present invention; Figure 4 This is a rear view of the connection between the seat body and the fixing frame of the present invention; Figure 5 This is a schematic diagram of the fixed frame and the support frame of the present invention; Figure 6 This is a structural schematic diagram of one end of the fixing plate of the present invention; Figure 7 This is a schematic structural diagram of the buffer component of the present invention.

[0018] In the figure: 101, excavator body; 1, cab; 2, fixed frame; 3, fixed bar; 4, limit bar; 5, slide 1; 6, slide 1; 7, support frame; 8, bar hole; 9, slider; 10, sleeve groove; 11, slide 2; 12, slide 2; 13, seat body; 14, fixed plate; 15, side plate; 16, drive plate; 17, motor; 18, screw; 19, guide rod; 20, connecting column; 21, sleeve; 22, rotating rod 1; 23, electric push rod; 24, rotating rod 2; 25, slide plate; 26, bump; 27, moving block; 28, guide wheel; 29, cross plate 1; 30, cross plate 2; 31, damper; 32, spring; 33, cross plate 3. DETAILED DESCRIPTION

[0019] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 The present invention provides a technical solution: a manned excavator with a cab shock absorption device, comprising: an excavator body 101, a cab 1 is provided on one side of the excavator body 101, a seat body 13 is fixedly installed in the cab 1 through two groups of fixing frames 2, the seat cushion part and the backrest part of the seat body 13 are rotatably connected, the fixing frame 2 is U-shaped, and the left and right sides of the outer end of the fixing frame 2 are fixedly installed with fixing bars 3, bolt holes are opened on the fixing bars 3, and the fixing bars 3 and the fixing frame 2 are conveniently fixed to the bottom plate of the cab 1 through the bolt holes, the inner side of each group of fixing frames 2 is slidably connected with a slider 9, the upper end of each slider 9 is fixedly installed with a support frame 7, the support frame 7 is provided with a strip hole 8 on the side close to the seat body 13, and a slide bar 6 is fixedly installed on the inner wall of the left and right ends of the fixing frame 2. A limit strip 4 is fixedly installed on the inner wall of the bottom end, and a slide groove 5 is provided at both ends of the left and right ends of the limit strip 4. A sleeve groove 10 corresponding to the limit strip 4 is provided at the lower end of the slider 9, and a slide strip 2 11 corresponding to the slide groove 5 is provided on the inner walls of the left and right ends of the sleeve groove 10. A slide strip 2 12 corresponding to the slide strip 1 6 is provided at both ends of the slider 9. When the slider 9 is inserted into the inner side of the fixed frame 2, the sleeve groove 10 is slidably sleeved on the outer wall of the limit strip 4, and at the same time, the slide strip 2 11 slides into the slide groove 5, and the slide strip 6 slides into the slide groove 2 12. When the slider 9 moves in the fixed frame 2, the sleeve groove 10 slides on the outer wall of the limit strip 4, the slide strip 2 11 slides in the slide groove 5, and the slide strip 6 slides in the slide groove 2 12, guiding and limiting the slider 9 and the support frame 7, so that it can move more stably with the seat body 13.

[0021] A driving component is installed between the two groups of fixed frames 2 for driving the slider 9 and the support frame 7 to move. The driving component includes two side plates 15 and a driving plate 16. The driving plate 16 is fixedly installed between the two sliders 9. The two side plates 15 are respectively fixedly installed between the front and rear ends of the two groups of fixed frames 2, and the driving plate 16 and the side plates 15 are located on the same horizontal line. A motor 17 is fixedly installed on the outer wall of one of the side plates 15. A screw rod 18 is rotatably connected between the two side plates 15 and a guide rod 19 is fixedly installed. The output end of the motor 17 is fixedly connected to one end of the screw rod 18 through a coupling, and the screw rod 18 and the guide rod 19 both pass through the driving plate 16. The screw rod 18 is threadedly connected to the inner wall of the driving plate 16, and the guide rod 19 is slidingly connected to the inner wall of the driving plate 16. The motor 17 can drive the screw rod 18 to rotate in both directions. When the screw rod 18 rotates, the driving plate 16 is driven to move.

[0022] Specifically, if it is necessary to adjust the front and rear position of the seat body 13, the motor 17 is started to drive the screw rod 18 to rotate. When the screw rod 18 rotates, the drive plate 16 is driven to move. When the drive plate 16 moves, the two support frames 7 are driven to move. The support frame 7 slides in the fixed frame 2 through the slider 9. At the same time, the drive plate 16 slides on the guide rod 19, thereby driving the seat body 13 to move, thereby adjusting the front and rear position of the seat body 13.

[0023] A fixed plate 14 is fixedly installed on the outer side of the backrest of the seat body 13, and the outer end of the fixed plate 14 is rotatably connected to a rotating rod 1 22 and an electric push rod 23. The other end of the rotating rod 1 22 is rotatably connected to a rotating rod 24. The end of the rotating rod 24 away from the rotating rod 1 22 is rotatably connected to a slide plate 25. The slide plate 25 is L-shaped, and the slide plate 25 is slidably connected to the support frame 7 through a sliding component. The output end of the electric push rod 23 is rotatably connected to the lower side of the rotating rod 1 22 near the end of the rotating rod 24. A connecting column 20 is fixedly installed on the outer side of one end of the seat body 13, and a sliding sleeve 21 is fixedly installed on the outer end of the connecting column 20. The sliding sleeve 21 is slidably sleeved on the outer end of the support frame 7, slidingly connecting the seat body 13 to the outer side of the support frame 7.

[0024] The sliding component includes a protrusion 26 fixed on the inner side of the slide 25, and a moving block 27 is fixedly installed on the side of the protrusion 26 away from the slide 25. A number of guide wheels 28 are installed on the outer end of the moving block 27. When the moving block 27 is slidably inserted into the support frame 7, the guide wheel 28 and the inner wall of the support frame 7 are rollingly connected. At the same time, the outer wall of the protrusion 26 and the inner wall of the strip hole 8 are slidingly connected. The slide 25 slides and fits the outer end of the support frame 7. When the seat body 13 slides on the outer wall of the support frame 7, the moving block 27 slides in the support frame 7 through the guide wheel 28. When the support angle of the backrest of the seat body 13 needs to be adjusted, the electric push rod 23 is started. The electric push rod 23 drives the rotating rod 1 22 to move upward or downward, thereby changing the angle between the rotating rod 1 22 and the rotating rod 2 24, thereby changing the support angle of the seat back.

[0025] A buffer component is provided between the two support frames 7, and the sliding sleeve 21 and the slide plate 25 are connected to the buffer component. The buffer component includes a transverse plate 1 29, a transverse plate 2 30 and a transverse plate 3 33. The transverse plate 1 29 is fixedly installed between the two slide plates 25. The transverse plate 2 30 is located at the lower end of the transverse plate 1 29 and is fixedly installed between the two support frames 7. A number of dampers 31 and springs 32 are evenly fixedly installed between the transverse plates 1 29 and the transverse plates 2 30. The dampers 31 and the springs 32 are staggered. There are two transverse plates 33, both located at the lower end of the transverse plate 2 30, and one of the transverse plates 33 is fixedly installed between the two sliding sleeves. A plurality of dampers 31 and springs 32 are fixedly installed between the two cross plates 33. The driver sits on the upper end of the seat body 13. When the excavator body 101 vibrates during walking or working, the vibration force is transmitted to the cab 1. The shock-absorbing components provided on the cab 1 absorb part of the vibration force and then transmit the vibration force to the seat. The seat slides up and down on one side of the two support frames 7 by squeezing or stretching the spring 32, and the seat is damped again to increase the shock-absorbing effect. At the same time, the damper 31 quickly stops the seat from vibrating.

[0026] In actual use, when the excavator body 101 vibrates while walking or working, the vibration force is transmitted to the cab 1. The shock-absorbing component set on the cab 1 absorbs part of the vibration force, and then transmits the vibration force to the seat. The sliding sleeve 21 and the slide plate 25 on one side of the seat move on the outside or inside of the support frame 7, and carry the cross plate 1 29 or cross plate 33 to slide up and down on one side of the two support frames 7 through the compression or tension spring 32, and damp the seat again to increase the shock-absorbing effect. At the same time, the damper 31 quickly stops the seat from vibrating.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A manned excavator with a cab shock-absorbing device, comprising: An excavator body (101) is provided with a cab (1) on one side of the excavator body (101), characterized in that: a seat body (13) is fixedly installed in the cab (1) through two groups of fixed frames (2), a slider (9) is slidably connected to the inner side of each group of fixed frames (2), a support frame (7) is fixedly installed on the upper end of each slider (9), a strip hole (8) is opened on the side of the support frame (7) close to the seat body (13), and a driving component is installed between the two groups of fixed frames (2) for driving the slider (9) and the support frame (7) to move; A fixed plate (14) is fixedly installed on the outer side of the backrest of the seat body (13), and the outer end of the fixed plate (14) is rotatably connected to a rotating rod 1 (22) and an electric push rod (23), and the other end of the rotating rod 1 (22) is rotatably connected to a rotating rod 2 (24), and the end of the rotating rod 2 (24) away from the rotating rod 1 (22) is rotatably connected to a slide plate (25), and the slide plate (25) is L-shaped. The slide plate (25) is slidably connected to the support frame (7) through a sliding component, and the output end of the electric push rod (23) is rotatably connected to the lower side of the rotating rod 1 (22) near the end of the rotating rod 2 (24); A connecting column (20) is fixedly mounted on the outer side of one end of the seat body (13), a sliding sleeve (21) is fixedly mounted on the outer end of the connecting column (20), the sliding sleeve (21) is slidably sleeved on the outer end of the support frame (7), a buffer component is provided between the two support frames (7), and the sliding sleeve (21) and the slide plate (25) are both connected to the buffer component.

2. A manned excavator with a cab shock-absorbing device according to claim 1, characterized in that: The fixing frame (2) is U-shaped, and fixing bars (3) are fixedly installed on both the left and right sides of the outer end of the fixing frame (2), and bolt holes are provided on the fixing bars (3). Slide bars (6) are fixedly installed on the inner walls of both the left and right ends of the fixing frame (2), and a limiting bar (4) is fixedly installed on the inner wall of the bottom end of the fixing frame (2), and a sliding groove (5) is provided on both the left and right ends of the limiting bar (4).

3. The manned excavator with a cab shock absorption device according to claim 2, characterized in that: The lower end of the slider (9) is provided with a sleeve groove (10) corresponding to the limit strip (4), and the inner walls of the left and right ends of the sleeve groove (10) are provided with a slide bar 2 (11) corresponding to the slide bar 1 (5), and the left and right ends of the slider (9) are provided with a slide bar 2 (12) corresponding to the slide bar 1 (6). When the slider (9) is inserted into the inner side of the fixed frame (2), the sleeve groove (10) is slidably sleeved on the outer wall of the limit strip (4), and at the same time, the slide bar 2 (11) is slidably inserted into the slide bar 1 (5), and the slide bar 1 (6) is slidably inserted into the slide bar 2 (12).

4. The manned excavator with a cab shock absorption device according to claim 1, characterized in that: The driving component comprises two side plates (15) and a driving plate (16), wherein the driving plate (16) is fixedly mounted between the two sliders (9), and the two side plates (15) are respectively fixedly mounted between the front and rear ends of the two sets of fixed frames (2), and the driving plate (16) and the side plates (15) are located on the same horizontal line.

5. The manned excavator with a cab shock-absorbing device according to claim 4, characterized in that: A motor (17) is fixedly mounted on the outer wall of one of the side plates (15), a screw rod (18) is rotatably connected between the two side plates (15) and a guide rod (19) is fixedly mounted thereon, an output end of the motor (17) is fixedly connected to one end of the screw rod (18) through a coupling, and both the screw rod (18) and the guide rod (19) pass through the drive plate (16), the screw rod (18) and the inner wall of the drive plate (16) are threadedly connected, and the guide rod (19) and the inner wall of the drive plate (16) are slidably connected.

6. The manned excavator with a cab shock absorption device according to claim 1, characterized in that: The sliding component includes a protrusion (26) fixed on the inner side of the slide plate (25), a moving block (27) is fixedly mounted on the side of the protrusion (26) away from the slide plate (25), and a plurality of guide wheels (28) are mounted on the outer end of the moving block (27).

7. The manned excavator with a cab shock-absorbing device according to claim 6, characterized in that: When the moving block (27) is slidably inserted into the support frame (7), the guide wheel (28) and the inner wall of the support frame (7) are rollingly connected, and at the same time, the outer wall of the protrusion (26) and the inner wall of the strip hole (8) are slidingly connected, and the slide plate (25) is slidingly fitted on the outer end of the support frame (7).

8. The manned excavator with a cab shock absorption device according to claim 1, characterized in that: The buffer component includes a first transverse plate (29), a second transverse plate (30) and a third transverse plate (33), wherein the first transverse plate (29) is fixedly mounted between the two slide plates (25), and the second transverse plate (30) is located at the lower end of the first transverse plate (29) and is fixedly mounted between the two support frames (7).

9. The manned excavator with a cab shock-absorbing device according to claim 8, characterized in that: A plurality of dampers (31) and springs (32) are evenly fixedly installed between the first transverse plate (29) and the second transverse plate (30), and the dampers (31) and springs (32) are staggered.

10. The manned excavator with a cab shock-absorbing device according to claim 9, characterized in that: The transverse plate three (33) is provided with two pieces, both of which are located at the lower end of the transverse plate two (30), one of the transverse plates three (33) is fixedly installed between the two sliding sleeves one (21), and the other is fixedly installed between the two support frames (7), and a plurality of dampers (31) and springs (32) are fixedly installed between the two transverse plates three (33).

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