Chassis frame structure of walking excavator

Abstract

The utility model discloses a walking type excavator chassis frame structure which comprises a supporting frame, the top of the supporting frame is rotationally connected with a rotating mounting frame, the left side and the right side of the supporting frame are rotationally connected with rotating frames, and the interiors of the rotating frames are rotationally connected with supporting legs. A rotating frame is rotationally connected to the ends, away from the supporting frame, of the supporting legs, tires are installed on the rotating frame, a mud blocking mechanism is arranged on the top of the rotating frame, and by arranging the mud blocking mechanism, when the supporting legs rotate downwards, the ends, away from the supporting frame, of the rotating frame can rotate downwards; when a motor is started, the motor drives a rubber wheel to rotate, the friction coefficient of the rubber wheel is large, the arc-shaped mudguard is driven to rotate, and the arc-shaped mudguard is driven to rotate, so that the arc-shaped mudguard is driven to rotate, and the end, away from the supporting frame, of the arc-shaped mudguard is low. Therefore, the position angle of the arc-shaped mud guard returns to the original state.

Description

TECHNICAL FIELD

[0001] The utility model relates to chassis frame technical field, concretely is a kind of walking excavator chassis frame structure. BACKGROUND

[0002] Walking excavator is a kind of all-terrain excavator, is the extension of the function of ordinary crawler excavator, and the crawler excavator is powerful, and powerful, but is limited by crawler structure, when encountering complex environment such as rugged, muddy, steep, cannot work safely and efficiently. Walking excavator is composed of working device, rotating mechanism, upper car, lower car and hydraulic system, and the lower car has four supporting legs with walking wheels to support the whole excavator, adjust in longitudinal, transverse and vertical directions, so that the excavator can also work in uneven and narrow area.

[0003] Through the search, the prior art (publication number: CN217923841U) discloses a modular walking excavator chassis, which comprises a lower car main body module, a left rear walking module, a right rear walking module, a left front walking module and a right front walking module, each walking module is detachably mounted on the lower car main body module, and the constituent parts of each module can be further detached into smaller and lighter units, the module is reasonably split, which is beneficial to meet the transportation capacity of small transport tools, and has good assembly property and high assembly efficiency, greatly saves rescue time and promotes rescue progress. In addition, the utility model also provides an excavator, which comprises the modular walking excavator chassis of the utility model.

[0004] It can be disassembled to meet the transportation capacity of small transport tools, can be conveniently air transported, and transportation efficiency is improved, but it has the following shortcomings: no mud blocking mechanism is arranged at the tire, so that mud splashing occurs during driving. INVENTION CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a walking excavator chassis frame structure, which solves the problems raised in the above background art.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a walking excavator chassis frame structure, comprising a supporting frame, a rotating mounting frame is rotatably connected to the top of the supporting frame, rotating frames are rotatably connected to the left and right sides of the supporting frame, a supporting leg is rotatably connected in the interior of the rotating frame, a rotating frame is rotatably connected to the end of the supporting leg away from the supporting frame, a tire is installed on the rotating frame, a mud blocking mechanism is arranged on the top of the rotating frame, and the mud blocking mechanism comprises a supporting rod, a motor, a rubber wheel and an arc-shaped mud guard.

[0007] Preferably, the top of the support frame is rotationally connected with a plurality of main hydraulic rods, output shafts of the main hydraulic rods are rotationally connected with the top of the rotating frame, interiors of the support legs are rotationally connected with auxiliary hydraulic rods, output shafts of the auxiliary hydraulic rods are rotationally connected with the interiors of the rotating frame, and the end of the support leg away from the support frame is rotationally connected with a slave hydraulic rod, and the slave hydraulic rod is rotationally connected with the rotating frame.

[0008] Preferably, rear surfaces of the front support rods and front surfaces of the rear support rods are both provided with arc-shaped sliding grooves, the arc-shaped mudguards are slidingly connected with the arc-shaped sliding grooves, interiors of the arc-shaped mudguards are provided with arc-shaped rolling grooves, and interiors of the support rods are provided with grooves.

[0009] Preferably, the motor is fixed in the groove, the rubber wheel is fixedly connected with an output shaft of the motor, the rubber wheel is located in the arc-shaped rolling groove, and the groove is provided with a mud scraping mechanism.

[0010] Preferably, the mud scraping mechanism comprises two arc-shaped mud scraping rods, two connecting rods, two springs and a ratchet gear, the arc-shaped mud scraping rods are located in the arc-shaped rolling grooves, and bottom sides of the arc-shaped mud scraping rods close to the motor are fixedly connected with top ends of the connecting rods.

[0011] Preferably, the end of the arc-shaped mud scraping rod away from the connecting rod is located outside the support rod, left and right sides of the groove are both provided with spring grooves, the springs are fixed in the spring grooves, the other ends of the springs are fixedly connected with the connecting rods, and an inner side wall of the ratchet gear is fixedly connected with an outer side wall of the output shaft of the motor.

[0012] Beneficial effects

[0013] The utility model provides a kind of step excavator chassis frame structure. Compared with prior art, it has the following beneficial effects:

[0014] 1、The step excavator chassis frame structure, by setting mud scraping mechanism, when support leg rotates downward, the end of rotating frame away from support frame will rotate downward, so that support rod and arc-shaped mudguard are rotated, so that the end of arc-shaped mudguard away from support frame is low in height, so that it is easy to knock and cause damage when driving, start motor, motor rotates with rubber wheel, the friction coefficient of rubber wheel is large, and arc-shaped mudguard is rotated, so that the position angle of arc-shaped mudguard returns to original state.

[0015] 2、The step excavator chassis frame structure is provided with a mud scraping mechanism, when the motor rotates, the ratchet gear rotates, the gear teeth of the ratchet gear extrude the connecting rod to move, the connecting rod moves with the arc-shaped mud scraping rod, after the gear teeth rotate, the spring pushes the connecting rod and the arc-shaped mud scraping rod back to the original position, so that the arc-shaped mud scraping rod vibrates left and right, and the arc-shaped mud scraping rod can scrape off the mud in the arc-shaped rolling groove, thereby preventing the rotation of the rubber wheel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the arc-shaped mudguard in the utility model;

[0018] Figure 3 It is a sectional view of the support rod in the utility model;

[0019] Figure 4 It is a structural schematic view of the ratchet gear, connecting rod and mud scraping rod in the utility model.

[0020] In the drawing: 1, rotating mounting frame; 2, support frame; 3, rotating frame; 4, support leg; 5, tire; 6, auxiliary hydraulic rod; 7, rotating frame; 8, mud scraping mechanism; 9, auxiliary hydraulic rod; 10, main hydraulic rod; 11, arc-shaped mudguard; 12, arc-shaped rolling groove; 13, connecting rod; 14, support rod; 15, groove; 16, rubber wheel; 17, motor; 18, mud scraping mechanism; 19, spring groove; 20, spring; 21, arc-shaped sliding groove; 22, arc-shaped mud scraping rod; 23, ratchet gear. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4The utility model provides a technical scheme: a step excavator chassis frame structure, including support frame 2, the top of support frame 2 is rotatably connected with rotary mounting bracket 1, the left and right sides of support frame 2 are rotatably connected with rotary frame 3, the inside of rotary frame 3 is rotatably connected with support leg 4, the end of support leg 4 away from support frame 2 is rotatably connected with rotary frame 7, and rotary frame 7 is installed with tire 5, and the top of rotary frame 7 is equipped with mud guard mechanism 8, mud guard mechanism 8 includes support rod 14, motor 17, rubber wheel 16 and arc mudguard 11, the top of support frame 2 is rotatably connected with multiple main hydraulic rods 10, and the output shaft of main hydraulic rod 10 is rotatably connected with the top of rotary frame 3, the inside of support leg 4 is rotatably connected with auxiliary hydraulic rod 9, and the output shaft of auxiliary hydraulic rod 9 is rotatably connected with the inside of rotary frame 3, the end of support leg 4 away from support frame 2 is rotatably connected with from hydraulic rod 6, and from hydraulic rod 6 is rotatably connected with rotary frame 7, the rear surface of front support rod 14 and the front surface of rear support rod 14 are all provided with arc sliding groove 21, arc mudguard 11 and arc sliding groove 21 are slidably connected, the inside of arc mudguard 11 is provided with arc rolling groove 12, the inside of support rod 14 is provided with recess 15, motor 17 is fixed in the inside of recess 15, rubber wheel 16 is fixedly connected with the output shaft of motor 17, rubber wheel 16 is located in the inside of arc rolling groove 12, recess 15 is equipped with shovel mud mechanism 18 in the inside, when support leg 4 is supported, the end of arc mudguard 11 away from support frame 2 reduces height, so that it is easy to knock and cause damage when driving, starts motor 17, and motor 17 rotates with rubber wheel 16, the friction coefficient of rubber wheel 16 is big, rotates with arc mudguard 11, to make arc mudguard 11 position angle return to original state.

[0023] Further, shovel mud mechanism 18 includes two arc mud shoveling rods 22, two connecting rods 13, two springs 20 and ratchet gears 23, arc mud shoveling rod 22 is located in the inside of arc rolling groove 12, the bottom of arc mud shoveling rod 22 is fixedly connected with the top of connecting rod 13 on the side close to motor 17, the end of arc mud shoveling rod 22 away from connecting rod 13 is located on the outside of support rod 14, spring groove 19 is formed in the inside left and right sides of recess 15, spring 20 is fixed in the inside of spring groove 19, the other end of spring 20 is fixedly connected with connecting rod 13, the inside wall of ratchet gear 23 is fixedly connected with the outside wall of the output shaft of motor 17, and motor 17 rotates and will rotate with ratchet gear 23, the gear teeth of ratchet gear 23 extrude connecting rod 13 and move, connecting rod 13 moves with arc mud shoveling rod 22, and arc mud shoveling rod 22 can shovel the mud in the inside of arc rolling groove 12.

[0024] When working, when the supporting legs 4 rotate downward, the end of the rotating frame 7 away from the supporting frame 2 rotates downward, so that the supporting rod 14 and the arc-shaped mudguard 11 rotate, so that the end of the arc-shaped mudguard 11 away from the supporting frame 2 is low in height, so that it is easy to be damaged when driving, the motor 17 is started, the motor 17 rotates with the rubber wheel 16, the rubber wheel 16 has a large friction coefficient, and rotates with the arc-shaped mudguard 11, so that the position angle of the arc-shaped mudguard 11 returns to the original state, and when the motor 17 rotates, the ratchet gear 23 rotates, the teeth of the ratchet gear 23 extrude the connecting rod 13 to move, the connecting rod 13 moves with the arc-shaped mud scraping rod 22, and after the teeth rotate, the spring 20 pushes the connecting rod 13 and the arc-shaped mud scraping rod 22 to return to the original position, so that the arc-shaped mud scraping rod 22 vibrates left and right, and the arc-shaped mud scraping rod 22 can remove the mud in the arc-shaped rolling groove 12 to prevent affecting the rotation of the rubber wheel 16.

[0025] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0026] It should be noted that, in this document, the relative terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations. The statement "including a limited element" does not exclude the existence of another same element in the process, method, article or device including the element.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A walking excavator chassis frame structure, comprising a support frame (2), characterized in that: The top of the support frame (2) is rotatably connected to a rotating mounting frame (1). Rotating frames (3) are rotatably connected to both the left and right sides of the support frame (2). Support legs (4) are rotatably connected inside the rotating frames (3). A rotating frame (7) is rotatably connected to the end of the support leg (4) away from the support frame (2). A tire (5) is installed on the rotating frame (7). A mudguard mechanism (8) is provided on the top of the rotating frame (7). The mudguard mechanism (8) includes a support rod (14), a motor (17), a rubber wheel (16), and an arc-shaped mudguard (11).

2. The walking excavator chassis frame structure according to claim 1, characterized in that: The top of the support frame (2) is rotatably connected to a plurality of main hydraulic rods (10), the output shaft of the main hydraulic rods (10) is rotatably connected to the top of the rotating frame (3), the inside of the support leg (4) is rotatably connected to an auxiliary hydraulic rod (9), the output shaft of the auxiliary hydraulic rod (9) is rotatably connected to the inside of the rotating frame (3), and the end of the support leg (4) away from the support frame (2) is rotatably connected to a secondary hydraulic rod (6), the secondary hydraulic rod (6) is rotatably connected to the rotating frame (7).

3. The walking excavator chassis frame structure according to claim 2, characterized in that: The rear surface of the front support rod (14) and the front surface of the rear support rod (14) are both provided with arc-shaped sliding grooves (21). The arc-shaped mudguard (11) and the arc-shaped sliding grooves (21) are slidably connected. The arc-shaped mudguard (11) is provided with an arc-shaped rolling groove (12) inside. The support rod (14) is provided with a groove (15) inside.

4. The walking excavator chassis frame structure according to claim 3, characterized in that: The motor (17) is fixed inside the groove (15), the rubber wheel (16) is fixedly connected to the output shaft of the motor (17), the rubber wheel (16) is located inside the arc-shaped groove (12), and the groove (15) is provided with a mud-shoveling mechanism (18).

5. The walking excavator chassis frame structure according to claim 4, characterized in that: The shovel mechanism (18) includes two arc-shaped shovel rods (22), two connecting rods (13), two springs (20) and a ratchet (23). The arc-shaped shovel rods (22) are located inside the arc-shaped groove (12). The bottom of the arc-shaped shovel rods (22) is fixedly connected to the top of the connecting rods (13) on the side near the motor (17).

6. The walking excavator chassis frame structure according to claim 5, characterized in that: The end of the arc-shaped shovel rod (22) away from the connecting rod (13) is located on the outside of the support rod (14). Spring grooves (19) are provided on both the left and right sides of the groove (15). The spring (20) is fixed inside the spring groove (19). The other end of the spring (20) is fixedly connected to the connecting rod (13). The inner wall of the ratchet gear (23) is fixedly connected to the outer wall of the output shaft of the motor (17).

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