Lower frame assembly of wheel excavator

Abstract

The utility model discloses a lower frame assembly of a wheel excavator, and relates to the technical field of excavator frames, in particular to the lower frame assembly of the wheel excavator, which comprises a frame main body, a connecting groove, a reinforcing component, an I-shaped mounting block, a supporting component, a treading groove, an anti-skid coating, a rotary flange, a traveling wheel and a mud guard, connecting grooves are formed in the front portion and the rear portion of the two sides of the frame body correspondingly, walking wheels are arranged in the connecting grooves correspondingly, mud guards are arranged on the upper sides of the interiors of the connecting grooves correspondingly, a rotary flange is arranged on the upper side of the frame body, a mounting plate is arranged on the front side of the frame body, and an I-shaped mounting block is arranged on the rear side of the frame body. Reinforcing assemblies are arranged between the walking wheels and the mudguards, and supporting assemblies are arranged on the two sides of the salary installation block. Compared with the prior art, the utility model has the advantages that the stability of the pedal piece for getting on and off the mudguard seat is improved, and the supporting stability of the frame main body during construction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator frames, in particular to a lower frame assembly of a wheeled excavator. Background Art

[0002] Wheeled excavators are tire-type excavators driven by axles. Compared with traditional crawler excavators, they have the advantages of maneuverability, flexibility and fast travel speed.

[0003] Publication number CN221193525U discloses a wheeled excavator frame comprising two support beams spaced apart from each other. The rear portions of the support beams are provided with rear uprights, the rear ends of the two support beams being fixedly connected to the rear uprights, the tops of the two support beams being fixedly connected to a top plate, a support plate being installed between the two support beams, a reinforcement plate being installed between the support plate and the top plate, the rear sides of the reinforcement plates being in contact with the rear uprights, stress relief plates being provided on both sides of the reinforcement plates, the stress relief plates extending forward, the left and right ends of the stress relief plates respectively resting against the sides of the support beams and the reinforcement plates, the support beams comprising a transversely arranged cross plate, one side of which being provided with an upwardly bent vertical plate, the stress relief plate having two vertical edges, one of which rests against the rear uprights and the other against the vertical plate. This wheeled excavator frame can prevent unbalanced force on the frame due to unilateral force on the bucket, thus avoiding damage to the frame and extending the service life of the product.

[0004] Although the above-mentioned frame solves certain problems, it still has the following disadvantages:

[0005] (1) When the driver gets on and off the cab, it is inconvenient for the driver to get on and off the vehicle from the side of the frame when the cab is tilted. The driver needs to step on the fender to get on and off. The fender is mostly welded to the frame on the side close to the frame, which has uneven support and is easy to be damaged.

[0006] (2) When the excavator is working, the force of the bucket construction can easily cause the frame to tilt. The support of the frame mainly comes from the wheels, which is not stable enough. Utility Model Content

[0007] The purpose of the utility model is to provide a lower frame assembly for a wheeled excavator.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A wheeled excavator lower frame assembly includes:

[0010] A frame body, wherein both sides of the frame body are provided with step grooves, the lower ends of the inner parts of the step grooves are provided with anti-slip coatings, and a swivel flange is fixedly connected to the upper side of the frame body;

[0011] Connecting grooves are respectively provided at the front and rear ends of both sides of the frame body, wherein running wheels are provided inside the connecting grooves, and fenders for use with the connecting grooves are fixedly connected to both the front and rear ends of the upper side of the frame body;

[0012] A reinforcement assembly is provided between the fender and the running wheel, and includes a connecting shaft, a support rod, and a connecting ring. The connecting shafts are respectively fixedly connected to the sides of the running wheels that are away from each other. Several support rods are evenly distributed and fixedly connected to the sides of the fender that are away from each other. The connecting ring is rotatably connected to the connecting shaft, and the other ends of the support rods connected to the fender are fixedly connected to the outside of the connecting ring.

[0013] An I-shaped mounting block, the I-shaped mounting block being fixedly connected to the rear side of the vehicle frame body;

[0014] The support assembly is arranged on both sides of the I-shaped mounting block. The support assembly includes a support arm and a support foot plate. The support arm is respectively hinged to the lower ends of both sides of the I-shaped mounting block, and the support foot plate is respectively hinged to the other end of the support arm connected to the I-shaped mounting block.

[0015] Furthermore, a mounting plate is fixedly connected to the front side of the frame body, and the mounting plate is used to install the dozer blade and the rocker arm.

[0016] Furthermore, the other end of the connecting shaft connected to the walking wheel is fixedly connected to a clamping block used in conjunction with the connecting ring.

[0017] Furthermore, the upper ends of both sides of the I-shaped mounting block are hinged with control cylinders, and the upper sides of the supporting foot plates are provided with fixing sockets.

[0018] Furthermore, the upper sides of the support arms are fixedly connected with hinge supports, and the other ends of the control cylinders connected to the I-shaped mounting blocks are hinged to the hinge supports.

[0019] The utility model provides a wheeled excavator lower frame assembly, which has the following beneficial effects:

[0020] (1) By setting a number of evenly distributed support rods on the outer edge of the lower side of the fender, the other end of the support rod connected to the fender is sleeved on the connecting shaft set on the running wheel through a connecting ring, the outer edge of the fender is reinforced and supported, thereby increasing the strength of the fender.

[0021] (2) By installing an I-shaped mounting block on the rear side of the frame body, support arms are installed on both sides, and support foot plates are hinged at the lower ends of the support arms to increase support for the side of the frame body and increase the stability of the frame body during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only exemplary, and those skilled in the art can also derive other implementation drawings based on the provided drawings without inventive effort.

[0023] Figure 1 It is a three-dimensional diagram of a lower frame assembly of a wheeled excavator of the present invention.

[0024] Figure 2 This is a partial structural three-dimensional structure of the lower frame assembly of a wheeled excavator. Figure 1 .

[0025] Figure 3 This is a partial structural three-dimensional structure of the lower frame assembly of a wheeled excavator. Figure 2 .

[0026] Figure 4 This is a partial structural three-dimensional structure of the lower frame assembly of a wheeled excavator. Figure 3 .

[0027] Figure 5 This is a partial structural three-dimensional structure of the lower frame assembly of a wheeled excavator. Figure 4 .

[0028] Markings in the figure: 1. Frame body; 2. Connecting groove; 3. Reinforcement assembly; 301. Connecting shaft; 302. Support rod; 303. Connecting ring; 4. I-shaped mounting block; 5. Support assembly; 501. Support arm; 502. Support foot plate; 6. Pedal groove; 7. Anti-slip coating; 8. Swivel flange; 9. Travel wheel; 10. Mudguard; 11. Mounting plate; 12. Block; 13. Control cylinder; 14. Fixing socket; 15. Hinge support. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0030] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example 1:

[0032] like Figures 1 to 5 As shown, this embodiment proposes a lower frame assembly for a wheeled excavator, including a frame body 1, a connecting groove 2, a reinforcement component 3, an I-shaped mounting block 4, a support component 5, a tread groove 6, an anti-slip coating 7, a slewing flange 8, a running wheel 9 and a fender 10 arranged on the upper side of the connecting groove 2 to protect the running wheel 9.

[0033] Among them, a swivel flange 8 is set in the middle position of the upper side of the frame body 1, which is convenient for connecting the frame body 1 and the upper cab. Connecting grooves 2 are opened in the front and rear of both sides of the frame body 1, and a walking wheel 9 is set inside each connecting groove 2. The inner and outer edges of the fender 10 are fixedly connected to several support rods 302 distributed along the edge of the fender 10, and a connecting shaft 301 is fixedly connected to the other side of the connecting groove 2 where the walking wheel 9 is connected. A connecting ring 303 is sleeved on the connecting shaft 301, and the connecting ring 303 is rotatably connected to the connecting shaft 301, and the other end of the support rod 302 connected to the fender 10 is fixedly connected to the outer side of the connecting ring 303. The outer edge of the fender 10 is reinforced and supported by the connecting shaft 301. In this way, when the cab is rotated to an angle or perpendicular to the frame body 1, the fender 10 can provide sufficient support, which is convenient for the driver to get on and off the vehicle.

[0034] Step grooves 6 are provided on both sides of the frame body 1. In order to facilitate the driver to get on and off the vehicle from both sides of the frame body 1, a layer of anti-slip coating 7 is fixedly connected to the lower side of the inner part of the step groove 6 to prevent the driver from slipping when getting on and off the vehicle. A mounting plate 11 is fixedly connected to the front end of the frame body 1 for installing a dozer and a rocker arm. In order to increase the stability of the excavator when working, the utility model is fixedly connected to an I-shaped mounting block 4 on the rear side of the frame body 1, and a support arm 501 is hinged at the lower end of both sides of the I-shaped mounting block 4. A hinge support 15 is fixedly connected to the upper side of the support arm 501, and a support foot plate 502 is hinged at the lower end of the support arm 501. The support foot plate 502 is supported on the ground by the support arm 501, thereby reinforcing the frame body 1 and increasing the stability of the frame body 1 when working.

[0035] Example 2:

[0036] The solution in Example 1 is further introduced below in conjunction with a specific working method, as described below:

[0037] Since the ground on which the excavator works is mostly uneven, in order to facilitate the adjustment of the support arm 501, a control cylinder 13 is hinged at the upper end of both sides of the I-shaped mounting block 4, and the other end of the control cylinder 13 connected to the I-shaped mounting block 4 is hinged to the hinge support 15 on the upper side of the support arms 501 on both sides. The expansion and contraction of the control cylinder 13 drives the support arms 501 on both sides to swing, and the upper and lower positions of the support foot plates 502 are adjusted, and fixing sockets 14 are provided on the upper sides of the support foot plates 502 to facilitate the fixation of the support foot plates 502. A clamping block 12 is fixedly connected to the other end of the connecting shaft 301 connected to the walking wheel 9 to prevent the connecting ring 303 from falling off the connecting shaft 301.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheeled excavator lower frame assembly, characterized by: include: A vehicle frame body (1), wherein both sides of the vehicle frame body (1) are provided with step grooves (6), the lower ends of the inner parts of the step grooves (6) are provided with anti-slip coatings (7), and a swivel flange (8) is fixedly connected to the upper side of the vehicle frame body (1); Connecting grooves (2), the connecting grooves (2) are respectively provided at the front and rear of both sides of the vehicle frame body (1), the connecting grooves (2) are provided with running wheels (9) inside, and the fenders (10) used in conjunction with the connecting grooves (2) are fixedly connected to both sides of the front and rear of the upper side of the vehicle frame body (1); A reinforcement assembly (3), the reinforcement assembly (3) being arranged between the fender (10) and the running wheel (9), the reinforcement assembly (3) comprising a connecting shaft (301), a support rod (302) and a connecting ring (303), the connecting shaft (301) being fixedly connected to the mutually distant sides of the running wheel (9), a plurality of support rods (302) being evenly distributed and fixedly connected to mutually distant sides of the inside of the fender (10), the connecting ring (303) being rotatably connected to the connecting shaft (301), and the other ends of the support rods (302) connected to the fender (10) being fixedly connected to the outside of the connecting ring (303); An I-shaped mounting block (4), the I-shaped mounting block (4) being fixedly connected to the rear side of the vehicle frame body (1); A support assembly (5) is provided on both sides of an I-shaped mounting block (4), and the support assembly (5) comprises a support arm (501) and a support foot plate (502), wherein the support arm (501) is respectively hinged to the lower ends of both sides of the I-shaped mounting block (4), and the support foot plate (502) is respectively hinged to the other end of the support arm (501) connected to the I-shaped mounting block (4).

2. The wheeled excavator lower frame assembly according to claim 1, characterized in that: A mounting plate (11) is fixedly connected to the front side of the vehicle frame body (1), and the mounting plate (11) is used for mounting a dozer blade and a rocker arm.

3. The wheeled excavator lower frame assembly according to claim 1, characterized in that: The other end of the connecting shaft (301) connected to the walking wheel (9) is fixedly connected to a clamping block (12) used in conjunction with the connecting ring (303).

4. The wheeled excavator lower frame assembly according to claim 1, characterized in that: The upper ends of both sides of the I-shaped mounting block (4) are hinged with control cylinders (13), and the upper sides of the supporting foot plates (502) are each provided with fixing sockets (14).

5. The wheeled excavator lower frame assembly according to claim 4, characterized in that: The upper sides of the support arms (501) are fixedly connected to hinge supports (15), and the other ends of the control cylinders (13) connected to the I-shaped mounting blocks (4) are hinged to the hinge supports (15).

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