Steering drive axle for wheel excavator

Abstract

The utility model provides a steering drive axle for a wheel excavator, which comprises an axle body, steering joints and a wheel side assembly, the steering joints are respectively arranged at two ends of the axle body, the wheel side assembly is arranged on one side of the steering joints, which is opposite to the axle body, and a brake pad is arranged on the wheel side assembly. A brake is arranged at the position, corresponding to the brake pad, of the steering joint and provided with a cleaning mechanism in the direction opposite to the rotation direction of the brake pad. According to the structure, due to the fact that the hydraulic cylinder is connected with the driving end of the brake, the driving axle of the wheel excavator can drive the hydraulic cylinder at the same time in the braking process, the hydraulic cylinder drives the cleaning piece to move towards the brake pad, and the cleaning brush on the cleaning piece moves from the second position to the first position; the cleaning brush is arranged in the cleaning cavity so that dust on the brake pad can be brushed away through the cleaning brush, meanwhile, the cleaning brush can play a role in shielding the brake pad forwards rotated into the cleaning cavity, stones are prevented from entering the brake, and the brake is protected during braking.

Description

Technical Field

[0001] The utility model relates to the technical field of the axle of an excavator, in particular to a steering drive axle for a wheeled excavator. Background Art

[0002] The drive axle on a wheeled excavator generally includes components such as a steering assembly, a wheel hub assembly, a brake, and a axle housing, etc.; among them, the axle housing is the basic component of the drive axle. The axle housing should have sufficient strength and stiffness, a small mass, and is used to steer the wheel hub assembly through the steering assembly. During the driving process of the wheeled excavator, the braking action can be achieved through the brake assembly. However, during the driving process of the wheeled excavator, foreign matters such as dust and stones are likely to enter the brake pads on the wheel hub assembly. When the brake pads on the brake assembly often come into contact with foreign matters such as dust and stones on the brake pads during the braking process, it is easy to damage the brake pads and reduce the service life of the brake pads. Content of the Utility Model

[0003] The utility model discloses a steering drive axle for a wheeled excavator, mainly solving the problem that when the brake pads of the brake assembly often come into contact with foreign matters such as dust and stones on the brake pads during the braking process, it is easy to damage the brake pads and reduce the service life of the brake pads.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] The utility model provides a steering drive axle for a wheeled excavator, including an axle body, a steering joint, and a wheel hub assembly. Steering joints are respectively arranged at both ends of the axle body. A wheel hub assembly is arranged on one side of the steering joint away from the axle body. Brake pads are arranged on the wheel hub assembly. A brake is arranged at a position corresponding to the brake pads on the steering joint. A cleaning mechanism is arranged along the direction opposite to the rotation direction of the brake pads;

[0006] The cleaning mechanism includes a cleaning frame. A cleaning cavity for accommodating the brake pads is arranged in the cleaning frame. A first opening and a second opening for the brake pads to rotate in and out are arranged on both sides of the cleaning cavity. Cleaning members are symmetrically arranged on both sides of the cleaning cavity corresponding to the brake pads. A plurality of cleaning brushes are arranged on one side of the cleaning member facing the brake pads. The cleaning member is driven by a hydraulic cylinder, and the hydraulic cylinder is communicated with the driving end of the brake, so that the cleaning member has a first position and a second position;

[0007] When the cleaning member is in the first position, the cleaning brushes abut against the brake pads;

[0008] When the cleaning member is in the second position, there is a gap between the ends of the cleaning brushes and the brake pads.

[0009] In one embodiment, when the cleaning member is in the second position, the gap between the end of the cleaning brush and the brake pad is smaller than the gap between the brake and the brake pad.

[0010] In one embodiment, a guide rod is provided on the cleaning member, and a guide hole is penetrated through the cleaning frame corresponding to the position of the guide rod, and the guide rod passes through the guide hole.

[0011] In one embodiment, a ventilation hole communicating with the cleaning cavity is provided at the top of the cleaning frame.

[0012] In one embodiment, a steering cylinder is provided on the axle body, and the steering cylinder is used to drive the rotation of the steering joint.

[0013] In one embodiment, the output end of the steering cylinder is rotatably connected to a steering link, and the other end of the steering link is rotatably connected to the steering joint.

[0014] The advantages or beneficial effects in the above technical solutions at least include: Since the hydraulic cylinder is connected to the driving end of the brake, during the braking process of the driving axle of the wheeled excavator, the hydraulic cylinder will also be driven simultaneously, so that the hydraulic cylinder drives the cleaning member to move towards the brake pad, causing the cleaning brush on the cleaning member to move from the second position to the first position, so as to facilitate the cleaning brush to brush off the dust on the brake pad. At the same time, the cleaning brush can play a shielding role for the brake pad that is just turning into the cleaning cavity, preventing stones from entering the brake, so as to play a role in protecting the brake when braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings illustrate exemplary embodiments of the present invention and, together with the description, are used to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention, and the drawings are included in this specification and form a part of this specification.

[0016] Figure 1 Shows a schematic diagram of a driving axle according to an exemplary embodiment of the present invention;

[0017] Figure 2 Shows a schematic diagram of a brake pad, a brake and a cleaning mechanism according to an exemplary embodiment of the present invention;

[0018] Figure 3 Shows a schematic diagram of a brake pad and a cleaning mechanism according to an exemplary embodiment of the present invention;

[0019] Figure 4 Shows an exploded schematic diagram of a cleaning mechanism according to an exemplary embodiment of the present invention.

[0020] Description of the reference numerals:

[0021] 1. Axle body;

[0022] 2. Steering joint;

[0023] 3. Wheel end assembly;

[0024] 4. Brake pad;

[0025] 5. Brake;

[0026] 6. Cleaning mechanism;

[0027] 61. Cleaning frame; 611. Cleaning cavity; 612. First opening; 613. Second opening; 614. Guide hole; 615. Vent hole;

[0028] 62. Cleaning part; 621. Cleaning brush; 622. Guide rod;

[0029] 63. Hydraulic cylinder;

[0030] 7. Steering cylinder;

[0031] 8. Steering link. Detailed implementation mode

[0032] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not used to limit the protection scope of the present invention.

[0033] It should be noted that, without conflict, the implementation modes and features in the implementation modes of the present invention can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the implementation modes.

[0034] The term "including" and its variants used herein are open-ended, that is, "including but not limited to". The term "based on" is "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0035] It should be noted that the modifiers "one" and "multiple" mentioned in the present utility model are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0036] The names of the messages or information exchanged between multiple devices in the embodiments of the present utility model are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0037] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in

[0038] 、

[0039] and

[0040]

[0041]

[0042] Figure 3 Figure 4 In one embodiment, see Figure 3 and Figure 4, when the cleaning member 62 is in the second position, the gap between the end of the cleaning brush 621 and the brake pad 4 is smaller than the gap between the brake 5 and the brake pad 4. In practical applications, with the gap between the cleaning brush 621 and the brake pad 4 set in this way, before the brake 5 approaches the brake pad 4, the cleaning brush 621 can contact the brake pad 4, so that the cleaning brush 621 can play a role in shielding and protecting before the brake 5 brakes.

[0043] In one embodiment, refer to Figure 4 , a guide rod 622 is provided on the cleaning member 62, and a guide hole 614 is penetrated through the cleaning frame 61 corresponding to the position of the guide rod 622, and the guide rod 622 passes through the guide hole 614. In practical applications, with the cooperation of the guide rod 622 and the guide hole 614, the movement of the cleaning member 62 can be made more stable.

[0044] A ventilation hole 615 communicating with the cleaning cavity 611 is provided at the top of the cleaning frame 61. In practical applications, with the provision of the ventilation hole 615, heat dissipation at this position can be facilitated.

[0045] In one embodiment, refer to Figure 1 , a steering oil cylinder 7 is provided on the axle body 1, and the steering oil cylinder 7 is used to drive the rotation of the steering joint 2.

[0046] The output end of the steering oil cylinder 7 is rotatably connected to a steering link 8, and the other end of the steering link 8 is rotatably connected to the steering joint 2. In practical applications, by connecting the steering oil cylinder 7 and the steering joint 2 through the steering link 8, the steering of the steering joint 2 driven by the steering oil cylinder 7 can be made more smooth.

[0047] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0048] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present invention, rather than limiting the scope of the present invention. For those skilled in the art, other changes or modifications can be made on the basis of the above invention, and these changes or modifications are still within the scope of the present invention.

Claims

1. A steering drive axle for a wheeled excavator, characterized in that: It includes an axle body, a steering knuckle and a wheel side assembly, wherein the two ends of the axle body are respectively provided with steering knuckles, the steering knuckle is provided with a wheel side assembly on one side of the axle body, a brake pad is provided on the wheel side assembly, a brake is provided at a position corresponding to the brake pad on the steering knuckle, and the brake is provided with a cleaning mechanism in the opposite direction of the rotation of the brake pad; The cleaning mechanism comprises a cleaning frame, wherein a cleaning cavity for accommodating the brake pad is arranged in the cleaning frame, a first opening and a second opening for the brake pad to be rotated in and out are arranged on both sides of the cleaning cavity, cleaning pieces are symmetrically arranged on both sides of the cleaning cavity corresponding to the brake pad, a plurality of cleaning brushes are arranged on the side of the cleaning piece facing the brake pad, and the cleaning piece is driven by a hydraulic cylinder, and the hydraulic cylinder is connected to the driving end of the brake, so that the cleaning piece has a first position and a second position; When the cleaning member is in the first position, the cleaning brush contacts the brake pad; When the cleaning member is at the second position, a gap exists between the end of the cleaning brush and the brake pad.

2. The steering drive axle for a wheeled excavator according to claim 1, characterized in that: When the cleaning member is located at the second position, the gap between the end of the cleaning brush and the brake pad is smaller than the gap between the brake and the brake pad.

3. The steering drive axle for a wheeled excavator according to claim 1, characterized in that: The cleaning piece is provided with a guide rod, and a guide hole is penetrated through the position of the cleaning frame corresponding to the guide rod, and the guide rod passes through the guide hole.

4. The steering drive axle for a wheeled excavator according to claim 1, characterized in that: The top of the cleaning frame is provided with an air hole communicated with the cleaning cavity.

5. The steering drive axle for a wheeled excavator according to claim 1, characterized in that: The axle body is provided with a steering cylinder, and the steering cylinder is used to drive the rotation of the steering joint.

6. The steering drive axle for a wheeled excavator according to claim 5, characterized in that: The output end of the steering oil cylinder is rotatably connected to a steering connecting rod, and the other end of the steering connecting rod is rotatably connected to a steering joint.

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