Supporting and limiting mechanism of wheel type backhoe loader

Abstract

The utility model relates to the technical field of backhoe loaders, in particular to a supporting and limiting mechanism of a wheel type backhoe loader, which increases the supporting area of a machine body, ensures the stability during construction, improves the safety and is convenient to change working ends. Comprising a machine body, position adjusting assemblies are installed at the left end and the right end of the machine body, supporting assemblies are installed on the position adjusting assemblies, and each position adjusting assembly comprises a rotating rod, two bevel gears, a hydraulic motor, two sets of driven bevel gears, two threaded rods, two transverse telescopic arms, two sets of limiting plates and two sets of fixing bases; a seat plate is mounted at the top of the machine body through a steering assembly, and a damping assembly is mounted at the bottom of the seat plate.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator loaders, in particular to a supporting and limiting mechanism of a wheeled excavator loader. Background Art

[0002] An excavator loader is a single device composed of three pieces of construction equipment. It is commonly known as "busy at both ends". During construction, the operator only needs to turn the seat to change the working end. Prior art publication number CN211312633U proposes an easy-to-operate excavator loader, including a main body, a digging arm is provided on the outer surface of one end of the main body, a dust reduction mechanism is provided on the lower outer surface of the digging arm, a cab is provided on the outer surface of one end of the digging arm, a loading mechanism is provided on the lower outer surface of the cab, an anti-stuck mechanism is provided on the outer surface of one end of the loading mechanism, and a transmission mechanism is provided on the outer surface of the other end of the loading mechanism. However, during excavation, the support area of ​​the four tires on the body is limited, which is prone to shaking and is relatively dangerous. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a four-wheel steering excavator loader which increases the supporting area of ​​the machine body, ensures stability during construction, improves safety, and facilitates the transformation of the working end.

[0004] The utility model discloses a support and limit mechanism of a wheeled excavator loader, comprising a machine body, wherein position adjustment components are installed at the left and right ends of the machine body, and a support component is installed on the position adjustment component, a seat plate is installed on the top of the machine body through a steering component, and a shock absorbing component is installed on the bottom of the seat plate; during excavation, the support component is driven to move by the position adjustment component to increase the support area of ​​the machine body, the machine body is supported by the support component to ensure stability during construction and improve safety, an operator sits on a sponge pad, the shock absorbing component can increase the riding comfort of the operator, the steering component can facilitate the adjustment of the direction of the rotating rod, and the working end is convenient to change.

[0005] Preferably, the position adjustment assembly includes a rotating rod, two bevel gears, a hydraulic motor, two sets of driven bevel gears, two threaded rods, two transverse telescopic arms, two sets of limit plates and two sets of fixed seats. The rotating rod is rotatably installed inside the machine body, and a driving cavity is provided at the left and right ends of the machine body. The two bevel gears are respectively installed on the outer wall of the rotating rod and are located in the driving cavity. The input end of the rotating rod is connected to the output end of the hydraulic motor. Telescopic grooves are provided on the left and right sides of the front and rear ends of the machine body. The threaded rod is screwed into the telescopic groove. The ends of the two threaded rods that are close to each other extend into the driving cavity and are equipped with a driven bevel gear. The driven bevel gear and The bevel gears are meshed, and limit sliding grooves are provided at the left and right ends of the telescopic slot. The limit plate is slidably installed in the telescopic slot, and the middle part of the limit plate is screwed on the outer wall of the threaded rod. The transverse telescopic arm is slidably installed in the telescopic slot, and the transverse telescopic arm is fixedly connected to the limit plate, and a fixed seat is fixedly installed on the outer end of the limit plate; the hydraulic motor is started to drive the rotating rod to rotate, and the rotating rod drives the bevel gear to rotate, and the bevel gear drives the threaded rod to rotate through the driven bevel gear. The rotation of the threaded rod pushes the transverse telescopic arm to extend out of the telescopic slot, thereby driving the fixed seat to move away from the side wall of the machine body, increasing the supporting area of ​​the machine body, and improving stability.

[0006] Preferably, the support assembly includes multiple hydraulic cylinders, multiple push plates, multiple longitudinal telescopic arms, multiple support seats and multiple outer cylinders. The multiple hydraulic cylinders are fixedly installed in the middle of the fixed seat, the outer cylinder is fixedly installed at the bottom of the fixed seat, the telescopic end of the hydraulic cylinder extends into the outer cylinder and a push plate is fixedly installed therein, the push plate is slidably installed on the inner wall of the outer cylinder, the bottom end of the push plate is fixedly installed with a longitudinal telescopic arm, and the bottom end of the longitudinal telescopic arm is movably installed with a support seat; starting the hydraulic cylinder pushes the push plate to move inside the outer cylinder, the push plate pushes the longitudinal telescopic arm to extend out from the lower part of the outer cylinder, the longitudinal telescopic arm drives the support seat to contact the ground, supports the machine body, ensures stability during construction, improves safety, and the movably connected support seat can increase its contact area with the ground and improve stability.

[0007] Preferably, the steering assembly includes a mounting cylinder, a drive motor, a transmission, a turntable and a guide conversion ring. The mounting cylinder is mounted on the top upper end of the machine body, and a drive motor is mounted inside the mounting cylinder. The output end of the drive motor is connected to the input end of the transmission. The output end of the transmission passes through the top of the mounting cylinder and a turntable is fixedly mounted thereon. A guide conversion ring is fixedly mounted on the bottom end of the turntable. An annular rotation groove is opened on the top of the mounting cylinder, and the guide conversion ring is rotatably mounted in the annular rotation groove, and the seat plate is located above the turntable. Starting the drive motor drives the turntable to rotate through the transmission, so that the direction of the seat plate can be adjusted to facilitate the change of the working end. When the turntable moves, it drives the guide conversion ring to move in the annular rotation groove to ensure stability during movement.

[0008] Preferably, the shock absorbing assembly includes multiple damping rods, multiple shock absorbing springs and telescopic sleeves, the multiple damping rods are evenly fixed on the top of the turntable, the top of the damping rod is connected to the top of the seat plate, the multiple shock absorbing springs are respectively sleeved on the outer walls of the damping rods, the bottom ends of the shock absorbing springs are connected to the top of the turntable, the top ends of the shock absorbing springs are connected to the bottom end of the seat plate, the telescopic sleeve is sleeved on the outside of the damping rods, the bottom of the telescopic sleeve is connected to the outer edge of the turntable, and the upper part of the telescopic sleeve is connected to the bottom of the seat plate; the vibrations during the construction process are buffered and absorbed by the damping rods and the shock absorbing springs, which can increase the riding comfort of the operators.

[0009] Preferably, a back plate is fixedly connected to the right side of the top of the seat plate, and armrests are hinged in the middle of the front and rear ends of the back plate; the back plate can support the operator's back, and the armrests can support the operator's arms, thereby improving comfort during work.

[0010] Preferably, a sponge pad is fixedly installed on the top of the seat plate; the sponge pad can increase the comfort of the staff when sitting and avoid discomfort for the staff when sitting for a long time.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: during excavation, the position adjustment component drives the support component to move, thereby increasing the support area of ​​the machine body, and the support component supports the machine body to ensure stability during construction and improve safety. The operator sits on the sponge pad, and the shock absorbing component can increase the riding comfort of the operator. The steering component can facilitate the adjustment of the direction of the rotating rod, thereby facilitating the transformation of the working end. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a front structural schematic diagram of the utility model;

[0014] Figure 3 It is a front cross-sectional structural schematic diagram of the utility model;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model viewed from above;

[0016] Figure 5 It is a left-side cross-sectional structural schematic diagram of the utility model;

[0017] Markings in the attached drawings: 1. body; 2. rotating rod; 3. bevel gear; 4. hydraulic motor; 5. driven bevel gear; 6. threaded rod; 7. horizontal telescopic arm; 8. limit plate; 9. fixed seat; 10. hydraulic cylinder; 11. push plate; 12. longitudinal telescopic arm; 13. support seat; 14. outer cylinder; 15. mounting cylinder; 16. driving motor; 17. transmission; 18. turntable; 19. guide conversion ring; 20. seat plate; 21. back plate; 22. sponge pad; 23. armrest; 24. damping rod; 25. shock-absorbing spring; 26. telescopic sleeve. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0019] like Figures 1 to 5As shown, the rotating rod 2 is rotatably installed inside the machine body 1, and a driving cavity is opened at the left and right ends of the machine body 1. Two bevel gears 3 are respectively installed on the outer wall of the rotating rod 2 and are located in the driving cavity. The input end of the rotating rod 2 is connected to the output end of the hydraulic motor 4. Telescopic grooves are opened on the left and right sides of the front and rear ends of the machine body 1. The threaded rod 6 is screwed in the telescopic groove. The ends of the two threaded rods 6 that are close to each other extend into the driving cavity and a driven bevel gear 5 is installed. The driven bevel gear 5 is meshed with the bevel gear 3. Limiting slide grooves are opened at the left and right ends of the telescopic groove. The limiting plate 8 is slidably installed in the telescopic groove. The middle part of the limit plate 8 is screwed on the outer wall of the threaded rod 6, the transverse telescopic arm 7 is slidably installed in the telescopic groove, and the transverse telescopic arm 7 is fixedly connected to the limit plate 8, the outer end of the limit plate 8 is fixedly installed with a fixed seat 9, a plurality of hydraulic cylinders 10 are fixedly installed in the middle of the fixed seat 9, an outer tube 14 is fixedly installed at the bottom of the fixed seat 9, the telescopic end of the hydraulic cylinder 10 extends into the outer tube 14 and is fixedly installed with a push plate 11, the push plate 11 is slidably installed on the inner wall of the outer tube 14, the bottom end of the push plate 11 is fixedly installed with a longitudinal telescopic arm 12, and the bottom end of the longitudinal telescopic arm 12 is movably installed with a support The support 13 and the mounting cylinder 15 are mounted on the top upper end of the machine body 1. A driving motor 16 is mounted inside the mounting cylinder 15. The output end of the driving motor 16 is connected to the input end of the transmission 17. The output end of the transmission 17 passes through the top of the mounting cylinder 15 and is fixedly mounted with a turntable 18. The bottom end of the turntable 18 is fixedly mounted with a guide conversion ring 19. An annular rotation groove is opened on the top of the mounting cylinder 15. The guide conversion ring 19 is rotatably mounted in the annular rotation groove. The seat plate 20 is located above the turntable 18. A plurality of damping rods 24 are evenly fixedly mounted on the top of the turntable 18. The damping rods 24 The top of the seat plate 20 is connected to the top of the seat plate 20, and multiple shock-absorbing springs 25 are respectively mounted on the outer wall of the damping rod 24. The bottom of the shock-absorbing spring 25 is connected to the top of the turntable 18, and the top of the shock-absorbing spring 25 is connected to the bottom of the seat plate 20. The telescopic sleeve 26 is mounted on the outside of the damping rod 24, and the bottom of the telescopic sleeve 26 is connected to the outer edge of the turntable 18. The upper part of the telescopic sleeve 26 is connected to the bottom of the seat plate 20. The right side of the top of the seat plate 20 is fixedly connected with a back plate 21, and the middle part of the front and rear ends of the back plate 21 is hinged with an armrest 23, and the top of the seat plate 20 is fixedly installed with a sponge pad 22;

[0020] Starting the hydraulic motor 4 drives the rotating rod 2 to rotate, and the rotating rod 2 drives the bevel gear 3 to rotate. The bevel gear 3 drives the threaded rod 6 to rotate through the driven bevel gear 5. The rotation of the threaded rod 6 pushes the transverse telescopic arm 7 to extend in the telescopic groove, thereby driving the fixed seat 9 to move away from the side wall of the machine body 1, increasing the support area of ​​the machine body and improving stability. Starting the hydraulic cylinder 10 pushes the push plate 11 to move inside the outer tube 14. The push plate 11 pushes the longitudinal telescopic arm 12 to extend from the lower part of the outer tube 14. The longitudinal telescopic arm 12 drives the support seat 13 to contact the ground, supports the machine body 1, ensures stability during construction, and improves safety. The movably connected support seat 13 can increase its contact area with the ground. , improve stability, start the drive motor 16 and drive the turntable 18 to rotate through the transmission 17, which can adjust the direction of the seat plate 20 to facilitate the change of the working end. When the turntable 18 moves, it drives the guide conversion ring 19 to move in the annular rotation groove to ensure stability during movement. The vibration during the construction process is buffered and absorbed by the damping rod 24 and the shock-absorbing spring 25, which can increase the comfort of the operator. The back plate 21 can support the back of the operator, and the armrest 23 can support the arm of the operator to improve the comfort during work. The sponge pad 22 can increase the comfort of the staff when riding, avoiding the discomfort of the staff for a long time.

[0021] like Figures 1 to 5 As shown, the support and limiting mechanism of a wheeled excavator loader of the utility model, when working, starts the hydraulic motor 4 to drive the rotating rod 2 to rotate, the rotating rod 2 drives the bevel gear 3 to rotate, the bevel gear 3 drives the threaded rod 6 to rotate through the driven bevel gear 5, the threaded rod 6 rotates to push the transverse telescopic arm 7 to extend in the telescopic groove, thereby driving the fixed seat 9 to move away from the side wall of the machine body 1, increasing the supporting area of ​​the machine body, starting the hydraulic cylinder 10 to push the push plate 11 to move inside the outer cylinder 14, the push plate 11 pushes the longitudinal telescopic arm 12 to extend from the lower part of the outer cylinder 14, and the longitudinal telescopic arm 1 2 drives the support seat 13 to contact the ground, supports the machine body 1, ensures the stability during construction, and can increase the comfort of the staff when riding through the sponge pad 22 to avoid the discomfort of the staff when riding for a long time. The back plate 21 can support the back of the operator, and the armrest 23 can support the arm of the operator. The vibration during the construction process is buffered and absorbed by the damping rod 24 and the shock-absorbing spring 25. The driving motor 16 is started to drive the turntable 18 to rotate through the transmission 17, and the direction of the seat plate 20 can be adjusted to facilitate the change of the working end.

[0022] The hydraulic motor 4, drive motor 16, transmission 17 and damping rod 24 of the support and limiting mechanism of a wheeled excavator loader of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual without the need for creative labor by technicians in this field.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A support and limit mechanism for a wheeled excavator loader, characterized in that: It comprises a machine body (1), wherein position adjustment components are installed at the left and right ends of the machine body (1), and a support component is installed on the position adjustment component, a seat plate (20) is installed on the top of the machine body (1) via a steering component, and a shock absorbing component is installed at the bottom of the seat plate (20); The position adjustment component comprises a rotating rod (2), two bevel gears (3), a hydraulic motor (4), two sets of driven bevel gears (5), two threaded rods (6), two transverse telescopic arms (7), two sets of limit plates (8) and two sets of fixed seats (9). The rotating rod (2) is rotatably mounted inside the machine body (1), and a driving cavity is provided at the left and right ends of the machine body (1). The two bevel gears (3) are respectively mounted on the outer wall of the rotating rod (2) and are located in the driving cavity. The input end of the rotating rod (2) is connected to the output end of the hydraulic motor (4). The left and right ends of the machine body (1) are provided with a plurality of drive cavities. A telescopic groove is provided on the side, a threaded rod (6) is screwed into the telescopic groove, the ends of the two threaded rods (6) close to each other extend into the driving cavity and a driven bevel gear (5) is installed, the driven bevel gear (5) is meshed with the bevel gear (3), and limit sliding grooves are provided at the left and right ends of the telescopic groove, a limit plate (8) is slidably installed in the telescopic groove, and the middle part of the limit plate (8) is screwed on the outer wall of the threaded rod (6), a transverse telescopic arm (7) is slidably installed in the telescopic groove, and the transverse telescopic arm (7) is fixedly connected to the limit plate (8), and a fixing seat (9) is fixedly installed on the outer end of the limit plate (8); The support assembly comprises a plurality of hydraulic cylinders (10), a plurality of push plates (11), a plurality of longitudinal telescopic arms (12), a plurality of support seats (13) and a plurality of outer cylinders (14). The plurality of hydraulic cylinders (10) are fixedly mounted at the middle of a fixed seat (9), the outer cylinder (14) is fixedly mounted at the bottom of the fixed seat (9), the telescopic ends of the hydraulic cylinders (10) extend into the interior of the outer cylinder (14) and are fixedly mounted with push plates (11), the push plates (11) are slidably mounted on the inner wall of the outer cylinder (14), the bottom end of the push plates (11) is fixedly mounted with longitudinal telescopic arms (12), and the bottom end of the longitudinal telescopic arms (12) is movably mounted with support seats (13).

2. A support and limiting mechanism for a wheeled excavator loader as claimed in claim 1, characterized in that: The steering assembly comprises a mounting cylinder (15), a driving motor (16), a transmission (17), a turntable (18) and a guide conversion ring (19). The mounting cylinder (15) is mounted on the top upper end of the machine body (1). The driving motor (16) is mounted inside the mounting cylinder (15). The output end of the driving motor (16) is connected to the input end of the transmission (17). The output end of the transmission (17) passes through the top of the mounting cylinder (15) and is fixedly mounted with a turntable (18). The bottom end of the turntable (18) is fixedly mounted with a guide conversion ring (19). An annular rotation groove is formed at the top of the mounting cylinder (15). The guide conversion ring (19) is rotatably mounted in the annular rotation groove. The seat plate (20) is located above the turntable (18).

3. A support and limiting mechanism for a wheeled excavator loader as claimed in claim 2, characterized in that: The shock absorbing assembly comprises a plurality of damping rods (24), a plurality of shock absorbing springs (25) and a telescopic sleeve (26). The plurality of damping rods (24) are evenly fixedly mounted on the top of the turntable (18). The top ends of the damping rods (24) are connected to the top end of the seat plate (20). The plurality of shock absorbing springs (25) are respectively sleeved on the outer walls of the damping rods (24). The bottom ends of the shock absorbing springs (25) are connected to the top of the turntable (18). The top ends of the shock absorbing springs (25) are connected to the bottom end of the seat plate (20). The telescopic sleeve (26) is sleeved on the outside of the damping rods (24). The bottom of the telescopic sleeve (26) is connected to the outer edge of the turntable (18). The upper part of the telescopic sleeve (26) is connected to the bottom of the seat plate (20).

4. The support and limiting mechanism of a wheeled excavator loader according to claim 1, characterized in that: A back plate (21) is fixedly connected to the right side of the top of the seat plate (20), and an armrest (23) is hingedly connected to the middle of the front and rear ends of the back plate (21).

5. The support and limiting mechanism of a wheeled excavator loader according to claim 1, characterized in that: A sponge pad (22) is fixedly mounted on the top of the seat plate (20).

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