Wheel single-side adjusting device, ground milling equipment and moving trolley

Abstract

The utility model relates to the technical field of building machinery, and discloses a wheel single-side adjusting device, ground milling equipment and a moving trolley. The wheel single-side adjusting device comprises a rack, a walking component, a walking frame, a driving mechanism and a control switch. The at least two walking parts are arranged below the rack; the at least two walking frames are connected with the corresponding walking components and rotationally connected with the rack. The driving mechanisms are in one-to-one correspondence with the walking frames, are connected with the rack and the corresponding walking frames, and drive the corresponding walking frames to rotate relative to the rack; the control switch is arranged on the rack and controls the driving mechanism to work. According to the wheel single-side adjusting device, the ground milling equipment and the moving trolley, by accurately adjusting the height of the walking component, it is ensured that the milling depth is uniform and consistent, and the rework rate is reduced; and the adaptability is high, the shutdown adjustment time caused by uneven road surface edges is shortened, and the overall operation efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of construction machinery, for example, to a wheel single-sided adjustment device, a surface milling equipment and a mobile trolley. Background Art

[0002] The descriptions in this section only provide background information related to the present disclosure and do not constitute prior art.

[0003] A milling machine is the core mechanical equipment for pavement maintenance projects. It is widely used in the renovation operations of roads, urban streets, airport runways, cargo loading and unloading yards, etc. It can not only effectively handle problems such as pavement bumps, oil wave marks, reticulated cracks and ruts, but also assist in excavating pits and trenches. At present, the rear wheels of existing milling machines are usually jointly arranged on an adjustment bracket. When the telescopic mechanism works, through the adjustment bracket, the two rear wheels are simultaneously driven to adjust the height. This structure has no problem when working on a flat working surface. However, some problems will occur when the milling machine works at the road edge. This is because the outer side of the road edge is not on the same working surface as the road edge, sometimes higher than the road surface and sometimes lower than the road surface. During operation, if not careful, the walking wheels near the edge will walk outside the road edge, resulting in the milling depth of the milling machine at the road edge being different from the requirements and the working quality decreasing. Summary of the Utility Model

[0004] This application provides a wheel single-sided adjustment device, a surface milling equipment and a mobile trolley, which can ensure uniform milling depth by precisely adjusting the height of the walking components, reduce the rework rate; have strong adaptability, reduce the downtime adjustment time caused by uneven road edges, and improve the overall operation efficiency; effectively avoid mechanical damage caused by the walking components straying into non-standard road surfaces and extend the service life of the equipment.

[0005] In a first aspect, a wheel single-sided adjustment device is provided, including: a frame, a walking component, a walking frame, a driving mechanism, a control switch; there are at least two walking components, which are arranged under the frame; there are at least two walking frames, which are connected to the corresponding walking components and rotatably connected to the frame; the driving mechanisms correspond to the walking frames one by one, are connected to the frame and the corresponding walking frames, and drive the corresponding walking frames to rotate relative to the frame; the control switch is arranged on the frame to control the driving mechanism to work.

[0006] In some embodiments, the walking component includes: a motor and a walking wheel, the motor is connected to the walking frame; the walking wheel is connected to the motor.

[0007] In some embodiments, the driving mechanism includes: a linear telescopic mechanism, and both ends of the linear telescopic mechanism are respectively hinged to the walking frame and the frame;

[0008] In some embodiments, the walking frame includes: a loop structure, a first lug, and a second lug; a motor is disposed in the middle cavity of the loop structure, the motor is connected to the inner wall of the loop structure, and the motor shaft penetrates through the loop structure and is connected to the walking wheel; the first lug is connected to one side of the loop structure, at least two are provided, and are hinged to the frame; the second lug is connected to the loop structure, is disposed on the opposite side of the first lug, at least two are provided, and are hinged to the driving mechanism.

[0009] In some embodiments, the unilateral wheel adjusting device further includes: a fixed shaft, the fixed shaft is disposed on the frame and is hinged to the first lug.

[0010] In some embodiments, the linear telescoping mechanism includes: a hydraulic telescopic rod and an electric telescopic rod.

[0011] In some embodiments, the motor includes: a hydraulic motor and an electric motor.

[0012] In some embodiments, the control switch includes: a handrail frame and a joystick; the handrail frame is connected to the frame; the joystick is disposed on the handrail frame.

[0013] In a second aspect, a ground milling device is provided, including: the unilateral wheel adjusting device according to the first aspect or any one of the embodiments in the first aspect.

[0014] In a third aspect, a mobile trolley is provided, including: the unilateral wheel adjusting device according to the first aspect or any one of the embodiments in the first aspect.

[0015] The unilateral wheel adjusting device provided in the present application can achieve the following technical effects:

[0016] By precisely adjusting the height of the walking components, it ensures that the milling depth is uniform, reduces the rework rate; has strong adaptability, reduces the downtime for adjustment caused by uneven road edges, and improves the overall operation efficiency; effectively avoids mechanical damage caused by the walking components entering non-standard roads, and extends the service life of the equipment.

[0017] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0018] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0019] Figure 1 is a schematic structural diagram of the unilateral wheel adjusting device provided by an embodiment of the present disclosure;

[0020] Figure 2 It is a schematic rear view structure diagram of a unilateral wheel adjustment device provided by an embodiment of the present disclosure;

[0021] Figure 3 It is a schematic assembly structure diagram of a unilateral wheel adjustment device provided by an embodiment of the present disclosure;

[0022] Figure 4 It is a schematic side view diagram of a unilateral wheel adjustment device provided by an embodiment of the present disclosure;

[0023] Figure 5 It is a schematic structure diagram of a surface milling equipment provided by an embodiment of the present disclosure;

[0024] Reference numerals:

[0025] 1, armrest frame; 2, frame; 3, traveling component; 4, front wheel; 5, motor; 6, milling device; 7, hydraulic pump; 11, joystick; 12, hydraulic valve; 13, fixed shaft; 14, first lug; 15, loop structure; 16, motor; 17, linear telescopic mechanism; 18, second lug; 19, spacer sleeve; 20, connecting frame; 21, traveling wheel; Detailed implementation manners

[0026] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and explanation purposes, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0027] The terms "first", "second", etc. in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0028] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "rear" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0029] In addition, the terms "arrangement", "connection", and "fixation" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0030] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0031] In this application, the surface milling equipment may include: hydraulic milling machines, milling and refurbishing machines, surface and bridge deck roughening machines, self-propelled milling machines, etc., and the embodiments of this application are not limited thereto.

[0032] In this application, the mobile trolley may include: excavators, loaders, bulldozers, rollers, agricultural machinery, mining machinery, etc., and the embodiments of this application are not limited thereto.

[0033] The agricultural machinery may include: tractors, harvesters, etc., and the embodiments of this application are not limited thereto.

[0034] The mining machinery may include: mining trucks, drills, etc., and the embodiments of this application are not limited thereto.

[0035] When these machines are working, they need to travel and operate on various different grounds. The unilateral wheel adjustment device can help these machines better adapt to different terrains and improve their work efficiency and stability.

[0036] Combined with Figures 1-4As shown in the figure, an embodiment of the present disclosure provides a unilateral wheel adjustment device, including: a frame 2, a traveling component 3, a traveling frame, a driving mechanism, and a control switch; the frame 2 serves as the support and installation foundation of the entire device, stably carrying all components. There are at least two traveling components 3, which are arranged below the frame 2; the traveling components 3 are in direct contact with the ground, providing the moving ability of the milling machine. There are at least two traveling frames, which are connected to the corresponding traveling components 3 and rotatably connected to the frame 2; the traveling frames are rigidly connected to the corresponding traveling components 3 respectively, and are rotatably connected to the frame 2 through a rotating shaft or hinge, allowing the traveling components 3 to adjust their heights within a certain range. The driving mechanism corresponds to the traveling frame one by one, is connected to the frame 2 and the corresponding traveling frame, and drives the corresponding traveling frame to rotate relative to the frame 2; when the traveling frame rotates, the height of the rotation center of the traveling component 3 relative to the ground changes accordingly; the control switch is arranged on the frame 2 to control the operation of the driving mechanism. The control switch is integrated on the frame 2, which is convenient for the operator to operate, and controls the working state of each driving mechanism through electrical signals or hydraulic signals to achieve precise adjustment of the traveling component 3.

[0037] The traditional method for adjusting the rear wheels of a milling machine usually uses a unified adjustment bracket to control the heights of the two rear wheels. This method performs well when operating on a flat road surface, but has significant limitations when dealing with non-standard working conditions such as road edges. Due to the complexity and irregularity of the road edge, unified adjustment is difficult to adapt to height changes, resulting in inconsistent milling depths, which affects the construction quality and efficiency.

[0038] When using the unilateral wheel adjustment device provided by the embodiment of the present disclosure, during the operation, when the milling machine approaches the road edge, the operator sends an instruction to the designated driving mechanism through the control switch, and the driving mechanism immediately drives the corresponding traveling frame to rotate relative to the frame 2, only adjusting the height of the traveling component 3 on the side close to the edge to adapt to the height change of the road edge. The traveling component 3 on the other side remains in its original state or is slightly adjusted to ensure the overall stability of the milling machine. By precisely adjusting the height of the traveling component 3, it is ensured that the milling depth is uniform, reducing the rework rate; it has strong adaptability, reducing the downtime adjustment time caused by uneven road edges, improving the overall operation efficiency; effectively avoiding mechanical damage caused by the traveling component 3 entering non-standard road surfaces, and extending the service life of the equipment.

[0039] In some embodiments, the traveling component 3 includes: a motor 16 and a traveling wheel 21, the motor 16 is connected to the traveling frame; the traveling wheel 21 is connected to the motor 16. Compared with the traditional milling machine moved by hand, the present application uses the motor 16 as the power source, which is directly connected to the traveling frame to provide stable driving force.

[0040] In some embodiments, the drive mechanism includes a linear telescopic mechanism 17. The two ends of the linear telescopic mechanism 17 are respectively hinged to the walking frame and the frame 2. By adopting the design of the linear telescopic mechanism 17 and hinged connection, the overall structure of the drive mechanism is simplified, and the manufacturing and maintenance costs are reduced. At the same time, the failure points and maintenance difficulties caused by the complex structure are also reduced.

[0041] In some embodiments, the walking frame includes a U-shaped structure 15, a first lug 14, and a second lug 18. The design of the U-shaped structure 15 makes the overall structure of the walking frame simple and clear, which is easy to process and manufacture. At the same time, the effective utilization of the internal space improves the integration and compactness of the equipment. The supporting effect of the U-shaped structure 15 and its respective sides enables the walking frame to have a strong load-bearing capacity, which can meet the requirements of different equipment and loads. The motor 16 is arranged in the middle cavity of the U-shaped structure 15. The motor 16 is connected to the inner wall of the U-shaped structure 15. The rotating shaft of the motor 16 passes through the U-shaped structure 15 and is connected to the walking wheel 21. The first lug 14 is connected to one side of the U-shaped structure 15. There are at least two first lugs 14, which are hinged to the frame 2. The second lug 18 is connected to the U-shaped structure 15 and is arranged on the opposite side of the first lug 14. There are at least two second lugs 18, which are hinged to the drive mechanism. The installation positions of key components such as the motor 16 are reasonable, which is convenient for installation, debugging, and maintenance work. In addition, the design of the lugs also simplifies the connection process with the frame 2 and the drive mechanism.

[0042] In some embodiments, the adjacent first lugs 14 of the two walking frames are spaced apart by a spacer sleeve 19, and the spacer sleeve 19 prevents the walking frames from shifting left and right.

[0043] In some embodiments, the second lug 18 is hinged to a connecting frame 20, and the connecting frame 20 is fixedly connected to the frame 2.

[0044] In some embodiments, an installation groove is provided on the side wall of the U-shaped structure 15 close to the walking wheel 21, which is convenient for connecting the rotating shaft of the motor 16 to the walking wheel 21.

[0045] In some embodiments, the wheel single-side adjustment device further includes a fixed shaft 13. The fixed shaft 13 is arranged on the frame 2 and is hinged to the first lug 14. The fixed shaft 13 serves as the pivot point of rotation and provides stable support for the walking frame. During the adjustment process, the walking frame can rotate smoothly around the fixed shaft 13, avoiding stability problems caused by shaking or shifting. Through the hinged connection between the fixed shaft 13 and the first lug 14, the wheel single-side adjustment device can achieve height adjustment. This helps the equipment better adapt to complex terrains and walking requirements, and improves the smoothness and safety of walking.

[0046] In some embodiments, the linear telescopic mechanism 17 includes: a hydraulic telescopic rod and an electric telescopic rod. It should be understood that the technical solutions described in the embodiments of the present application are not limited to the devices described above. For the sake of brevity, the following embodiments will be described by taking the hydraulic telescopic rod as an example. The hydraulic telescopic rod utilizes the principle of hydraulic transmission to convert the pressure energy of the liquid into mechanical energy to achieve telescopic movement. Its advantages are large output force, smooth transmission, rapid response, and easy implementation of remote control. The hydraulic telescopic rod is suitable for occasions that require large thrust, high stability, and precise control, such as heavy equipment, construction machinery, etc.

[0047] In some embodiments, the motor 16 includes: a hydraulic motor 16 and an electric motor 16. It should be understood that the technical solutions described in the embodiments of the present application are not limited to the devices described above. For the sake of brevity, the following embodiments will be described by taking the hydraulic motor 16 as an example. The hydraulic motor 16 utilizes the principle of hydraulic transmission to convert the pressure energy of the liquid into mechanical energy to achieve rotational movement. Its advantages are large output torque, smooth transmission, rapid response, and stable operation in harsh environments. The hydraulic motor 16 is particularly suitable for occasions that require large torque, high reliability, and long service life, such as heavy machinery, construction machinery, and other fields.

[0048] In some embodiments, the control switch includes: a handrail 1 and a joystick 11; the handrail 1 is connected to the frame 2; the handrail 1 serves as the main component for supporting and positioning the user's hand to ensure that the user can firmly hold and control the device during long-term operation or in case of emergency. The handrail 1 is firmly connected to the frame 2 to ensure that it will not loosen or fall off due to vibration or impact during the operation of the device. The joystick 11 is provided on the handrail 1. The joystick 11 is provided on the handrail 1, and the user issues control commands by moving or rotating the joystick 11 to achieve the operation of the device.

[0049] In one embodiment of the present application, a hydraulic pump 7 is provided on the frame 2, and a hydraulic valve 12 is provided on the handrail 1. The hydraulic pump 7, the hydraulic valve 12, and the hydraulic telescopic rod are connected to each other. The joystick 11 controls the opening and closing of the hydraulic valve 12 to control the telescopic movement of the hydraulic telescopic rod. Specifically, the hydraulic pump 7, the hydraulic valve 12, and the hydraulic telescopic rod are connected to each other through hydraulic pipelines to form a complete hydraulic system. When the user issues a control command through the joystick 11, the mechanical movement of the joystick 11 is transmitted to the hydraulic valve 12. The hydraulic valve 12 adjusts the position of its internal spool according to the received signal, changes the on-off state of the hydraulic pipeline or the flow direction of the oil, thereby controlling the change of the oil pressure in the hydraulic telescopic rod. With the change of the oil pressure, the hydraulic telescopic rod realizes the corresponding telescopic movement.

[0050] Such as Figure 5, an embodiment of the present disclosure provides a road milling equipment, including: the wheel single-side adjustment device described in any one of the above embodiments. Therefore, it has the technical effects of the wheel single-side adjustment device, which will not be elaborated herein.

[0051] In some embodiments, the road milling equipment further includes a motor 5, a milling device 6, a front wheel 4, and a hydraulic pump 7. The motor 5 is powered by external power supply, and the motor 5 drives the milling device 6 and the hydraulic pump 7 to work.

[0052] An embodiment of the present disclosure provides a mobile trolley, including: the wheel single-side adjustment device described in any one of the above embodiments. Therefore, it has the technical effects of the wheel single-side adjustment device, which will not be elaborated herein.

[0053] The above description and the drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural and other changes. Embodiments only represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A wheel unilateral adjustment device, characterized in that: include: frame; There are at least two walking parts, which are arranged below the frame; There are at least two traveling frames, which are connected to the corresponding traveling parts and are rotatably connected to the frame; The driving mechanism corresponds to the traveling frame one by one, is connected to the frame and the corresponding traveling frame, and drives the corresponding traveling frame to rotate relative to the frame; The control switch is arranged on the frame to control the operation of the driving mechanism.

2. The wheel unilateral adjustment device according to claim 1, characterized in that: The walking parts include: A motor connected to the traveling frame; Travel wheel connected to the motor.

3. The wheel unilateral adjustment device according to claim 1, characterized in that: The driving mechanism includes: The linear telescopic mechanism has two ends hinged to the traveling frame and the frame respectively.

4. The wheel unilateral adjustment device according to claim 2, characterized in that: The walking frame comprises: The motor is arranged in the hollow space in the middle of the circular structure, the motor is connected to the inner wall of the circular structure, and the motor shaft passes through the circular structure and is connected to the travel wheel; The first lug is connected to one side of the circular structure, at least two lugs are provided, and are hinged to the frame; The second lug is connected to the circular structure, is arranged on the opposite side of the first lug, is provided with at least two lugs, and is hinged to the driving mechanism.

5. The wheel unilateral adjustment device according to claim 4, characterized in that: Also includes: The fixed shaft is arranged on the frame and is hinged to the first lug.

6. The wheel unilateral adjustment device according to claim 3, characterized in that: The linear telescopic mechanism comprises: a hydraulic telescopic rod and an electric telescopic rod.

7. The wheel unilateral adjustment device according to claim 2, characterized in that: The motor includes: a hydraulic motor and an electric motor.

8. The wheel unilateral adjustment device according to claim 1, characterized in that: Control switches include: A handrail frame connected to the frame; The joystick is arranged on the armrest.

9. A ground milling device, characterized in that: It comprises the wheel unilateral adjustment device as described in any one of claims 1 to 8.

10. A mobile vehicle, characterized in that: It comprises the wheel unilateral adjustment device as described in any one of claims 1 to 8.

Images