CN216193862U

CN216193862U - Milling machine

Info

Publication number: CN216193862U
Application number: CN202122661212.2U
Authority: CN
Inventors: 何财政; 刘智彪
Original assignee: Hunan Sany Zhongyi Machinery Co Ltd
Current assignee: Hunan Sany Zhongyi Machinery Co Ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-04-05
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to the technical field of road machinery, and aims to provide a milling machine. The milling machine comprises a frame, wherein the frame is sequentially provided with a front wheel assembly, a machine cover and a rear wheel assembly from front to back, and a milling drum is rotationally arranged in the machine cover. The front wheel assembly and/or the rear wheel assembly comprise an electric driving running system, the electric driving running system comprises a motor, a speed reducer, wheels and a supporting assembly, the motor and the speed reducer are fixedly arranged on the supporting assembly, and the motor, the speed reducer and the wheels are sequentially connected in a transmission manner. The motor, the supporting component and the speed reducer can be designed into a whole part, the arrangement is compact, the occupied space of a transmission system is reduced, meanwhile, the mechanical transmission mode that the motor directly drives the wheels through the speed reducer is adopted, the transmission efficiency is higher compared with a full-hydraulic driving mode, the problems of tail gas emission and noise can be well solved or improved through the motor driving mode, the environment is more protected, and in addition, the heat dissipation performance of the motor arranged outside the rack is better.

Description

Milling machine

Technical Field

The utility model relates to the technical field of road machinery, in particular to a milling machine.

Background

The milling machine is an important pavement maintenance device, and is more and more widely applied to pavement renovation maintenance operations of highways, concrete pavements, airports, basements and the like. The small milling machine is mainly applied to maintenance work of urban roads and small maintenance work engineering of high-grade high-speed roads. The power transmission system is a core component of the milling machine, and the design structure of the power transmission system directly influences the working performance and efficiency of the milling machine.

Due to the limitation of the size of the machine, the small milling machine on the market at present generally adopts a mode of driving by a fuel engine and full hydraulic transmission to drive the driving wheels. Although the power transmission form has mature and stable technology and lower cost, the problems of emission and noise pollution exist, and meanwhile, the hydraulic transmission efficiency is not as high as the mechanical transmission efficiency.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is an object of the present invention to overcome or ameliorate one or more of the problems of the prior art.

In order to solve the problems, the utility model provides a milling machine which comprises a machine frame, wherein a front wheel assembly, a machine cover and a rear wheel assembly are sequentially arranged on the machine frame from front to back, a milling drum is rotationally arranged in the machine cover, the front wheel assembly and/or the rear wheel assembly comprises an electric driving running system, the electric driving running system comprises a motor, a speed reducer, wheels and a supporting assembly, the motor and the speed reducer are fixedly arranged on the supporting assembly, and the motor, the speed reducer and the wheels are sequentially connected in a transmission manner.

Preferably, the motor, the speed reducer and the wheel are coaxially arranged.

Preferably, the motor and the speed reducer are connected by a spline.

Preferably, the supporting component comprises a bracket and a supporting plate which are connected, the bracket is of an arc structure matched with the shape of the motor, and the supporting plate is provided with an annular structure used for penetrating the speed reducer.

Preferably, the bracket is provided with a plurality of through holes in a circumferential direction.

Preferably, the front wheel subassembly includes link, steering linkage, steering cylinder and two electricity drive traveling system, the link with the frame is connected, the both ends of link rotate with the supporting component of two electricity drive traveling system respectively and are connected, the both ends that turn to the link also rotate with the supporting component of two electricity drive traveling system respectively and are connected, steering cylinder's one end with the link rotates and connects, steering cylinder's the other end rotates with the supporting component of one of them among two electricity drive traveling system and is connected.

Preferably, the rear wheel subassembly includes two lift landing legs and two electricity and drives the system of traveling, and two lift landing legs and two electricity drive the system one-to-one setting of traveling, the flexible end and the supporting component of lift landing leg are connected, and the flexible end of lift landing leg is formed with curved fender.

Preferably, one of the two lifting legs is fixedly connected with the frame, and the other lifting leg is rotatably connected with the frame through a swing frame connected with the other lifting leg.

Preferably, the rack is sequentially provided with an engine room covering part, a battery, a driving control console and a material conveying machine from front to back, a ceiling is arranged above the driving control console, the battery is provided with an electric cabinet, and the electric cabinet is connected with the motor.

Preferably, the milling machine further comprises a milling motor and a milling reducer, wherein the milling motor is connected with the electric cabinet, the milling reducer is connected with the milling motor, and the milling drum is connected with the milling reducer.

The milling machine provided by the embodiment of the utility model comprises an electrically-driven running system, wherein the electrically-driven running system comprises a motor, a speed reducer, wheels and a supporting assembly, the motor and the speed reducer are fixedly arranged on the supporting assembly, the motor, the speed reducer and the wheels are sequentially connected in a transmission manner, and the supporting assembly is kept still when the motor runs, so that the supporting assembly can solve the mounting problem of the motor and the speed reducer and can be connected with a machine frame and the wheels to play a role of supporting the machine frame, the motor, the supporting assembly and the speed reducer can be designed into an integral part, the arrangement is compact, the occupied space of a transmission system is reduced, the motor, the supporting assembly and the wheels can be directly hung on the wheels, the mounting and maintenance performance is greatly improved, the manufacturing is relatively simple, the cost is lower, meanwhile, a mechanical transmission form that the motor directly drives the wheels through the speed reducer is adopted, compared with a full hydraulic driving mode, the transmission efficiency is higher, and the motor driving mode is adopted, can better solve or improve the problem of exhaust emission and noise, more environmental protection, in addition, the motor dress is better at frame outside thermal diffusivity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 shows a schematic overall construction of the milling machine according to the utility model;

FIG. 2 illustrates a schematic structural view of the front and rear wheel assemblies of the present invention;

FIG. 3 shows a schematic cross-sectional view of the front wheel assembly of the present invention.

Description of reference numerals:

1-a machine frame, 2-a front wheel component, 3-a rear wheel component and 4-a motor,

5-a speed reducer, 6-wheels, 7-a bracket, 8-a supporting plate,

9-through hole, 10-connecting frame, 11-steering connecting rod, 12-steering oil cylinder,

13-lifting legs, 14-mudguards, 15-swing frames, 16-cabin covers,

17-battery, 18-driving console, 19-material conveyer, 20-ceiling.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, 2 and 3, an embodiment of the present invention provides a milling machine, which includes a frame 1, the frame 1 is provided with a front wheel assembly 2, a hood and a rear wheel assembly 3 in sequence from front to back, and a milling drum is rotatably provided in the hood. The front wheel assembly 2 and/or the rear wheel assembly 3 comprise an electric driving running system, the electric driving running system comprises a motor 4, a speed reducer 5, wheels 6 and a supporting assembly, the motor 4 and the speed reducer 5 are fixedly arranged on the supporting assembly, and the motor 4, the speed reducer 5 and the wheels 6 are sequentially connected in a transmission manner.

It should be noted that, because the large milling machine requires a large driving force and usually employs a crawler traveling mechanism, the wheel traveling mechanism is generally only applicable to a small milling machine and a medium milling machine, and thus the milling machine provided in the embodiment of the present invention is a small milling machine or a medium milling machine.

Wherein, the supporting component is used for fixed motor 4 and speed reducer 5 on the one hand, and the input of speed reducer 5 is connected with the output of motor 4, and the output of speed reducer 5 is connected with wheel 6, and on the other hand is used for connecting frame 1, and when motor 4 ran, the supporting component kept motionless and supported frame 1.

The milling machine provided by the embodiment of the utility model comprises an electric driving running system, the electric driving running system comprises a motor 4, a speed reducer 5, wheels 6 and a supporting assembly, the motor 4 and the speed reducer 5 are fixedly arranged on the supporting assembly, the motor 4, the speed reducer 5 and the wheels 6 are sequentially connected in a transmission way, and the supporting assembly is kept still when the motor 4 runs, so that the supporting assembly can solve the mounting problem of the motor 4 and the speed reducer 5 and can be connected with a rack 1 and the wheels 6 to play a role of supporting the rack 1, the motor 4, the supporting assembly and the speed reducer 5 can be designed into an integral part, the arrangement is compact, the occupied space of a transmission system is reduced, and the integral part can be directly hung on the wheels 6, the mounting and maintenance performances are greatly improved, the speed reducer is relatively simple to manufacture and the cost is lower, meanwhile, a mechanical transmission mode that the motor 4 directly drives the wheels 6 through the speed reducer 5 is adopted, compared with a full hydraulic driving mode, transmission efficiency is higher, and through the motor 4 drive form, can better solve or improve the problem of exhaust emissions and noise, and is more environmental protection, and in addition, the motor 4 dress is better at 1 outside thermal diffusivity in the frame.

In order to improve the transmission efficiency and reduce the power loss, it is preferable that the motor 4, the reducer 5, and the wheel 6 are coaxially disposed. Specifically optionally, the motor 4 and the speed reducer 5 are connected through splines, a spline mechanical transmission mode is adopted, transmission efficiency is high, the speed reducer 5 adopts the planetary speed reducer 5, during use, the motor 4 is connected with the supporting assembly, the planetary speed reducer 5 is driven through the splines, a gear ring of the planetary speed reducer 5 drives the traveling wheel 6, the motor 4 is connected with the supporting assembly, the supporting assembly is connected with the planetary speed reducer 5, and the speed reducer 5 is connected with the wheel 6. It should be noted that, the mechanical transmission form of "motor 4 → spline → reducer 5 → wheel 6" reduces the noise during milling operation, and compared with the full hydraulic drive form, the transmission efficiency is higher, and besides the spline connection form, the connection between motor 4 and reducer 5 can also adopt the expansion sleeve, flange, etc.

In order to facilitate the installation of the motor 4 and the speed reducer 5, the supporting component comprises a bracket 7 and a supporting plate 8 which are connected, the motor 4 is arranged on the bracket 7, the speed reducer 5 is fixed on the supporting plate 8, the bracket 7 is of an arc structure matched with the shape of the motor 4, and the supporting plate 8 is provided with an annular structure used for penetrating the speed reducer 5. Preferably, the bracket 7 is provided with a plurality of through holes 9 along the circumferential direction, and the through holes 9 can play a role in reducing weight and are beneficial to heat dissipation of the motor 4.

In a specific embodiment, the front wheel assembly 2 is in a non-liftable structural form, the front wheel assembly 2 comprises a connecting frame 10, a steering connecting rod 11, a steering oil cylinder 12 and two electrically-driven traveling systems, the connecting frame 10 is connected with the rack 1, two ends of the connecting frame 10 are respectively and rotationally connected with supporting components of the two electrically-driven traveling systems, the supporting components can be connected with the connecting frame 10 through pin shafts, two ends of the steering connecting rod 11 are also respectively and rotationally connected with supporting components of the two electrically-driven traveling systems, one end of the steering oil cylinder 12 is rotationally connected with the connecting frame 10, the other end of the steering oil cylinder 12 is rotationally connected with one supporting component of the two electrically-driven traveling systems, and the steering oil cylinder 12 provides steering power for the front wheel assembly 2. Wherein, the connecting frame 10 can be connected and fixed with the frame 1 through bolts.

In a specific embodiment, the rear wheel assembly 3 is in a lifting structure, the rear wheel assembly 3 comprises two lifting legs 13 and two electrically-driven running systems, the two lifting legs 13 and the two electrically-driven running systems are arranged in a one-to-one correspondence manner, the telescopic ends of the lifting legs 13 are connected with the supporting assembly, the telescopic ends of the lifting legs 13 are provided with arc-shaped fenders 14, and the fenders 14 are matched with the shape of the wheels 6 of the electrically-driven running systems and cover the wheels 6. The lifting support legs 13 are provided with lifting power by lifting oil cylinders, and the lifting support legs 13 belong to the prior art and are not specifically unfolded.

Preferably, one of the two lifting legs 13 of the rear wheel assembly 3 is fixedly connected to the machine frame 1, the other lifting leg 13 is rotatably connected to the machine frame 1 via a swing frame 15 perpendicular to its fixed end or connected at another suitable angle, the lifting leg 13 is swingable relative to the machine frame 1 by means of the swing frame 15, the milling machine rotates the leg in a horizontal direction to the outside of the machine frame 1 in case of normal driving, and the milling machine rotates the leg in a horizontal direction to the inside of the machine frame 1 in case of milling operation or passing through a narrow road, thereby improving the adaptability of the milling machine to the operating conditions.

Specifically, optionally, the machine frame 1 is sequentially provided with an engine room covering part 16, a battery 17, a driving control console 18 and a material conveyor 19 from front to back, a ceiling 20 is arranged above the driving control console 18, an electric cabinet is arranged on the battery 17, and the electric cabinet is connected with the motor 4. Meanwhile, the milling machine further comprises a milling motor and a milling reducer, the milling motor is connected with the electric cabinet, the milling reducer is connected with the milling motor, and the milling drum is connected with the milling reducer so that the milling drum also adopts an electric driving structure form.

In the implementation of the utility model, the initial power for the operation of the milling machine is provided by the battery 17, and the motor 4 for driving components such as the electro-hydraulic unit, the electric drive running system, the electric drive working device and the like is operated. The operation of each actuator is controlled and controlled by the driving console 18. The electric driving running system provides forward and backward power for the milling machine; the electric driving working device can mill and dig the road surface; the conveying system conveys the milled slag to a skip car or a road edge; the frame 1 provides a whole machine support; the left and right sliding doors are lifted, the supporting legs are lifted, the material conveying frame swings and the like through hydraulic oil cylinders on all the parts.

The working process of the milling machine provided by the utility model is as follows:

1) when the milling machine generates driving force, the motor 4 is electrified to rotate, and then the speed and torque are reduced and increased through the speed reducer 5 to drive the wheels 6 to rotate, so that the driving force is generated;

2) during deceleration, firstly, the motor 4 generates braking moment in the process of recovering kinetic energy, and then the deceleration of the vehicle is controlled by controlling the braking force of the brake;

3) after the vehicle stops, air pressure or hydraulic pressure in the brake is discharged, and a compression spring in the brake rebounds to clamp a brake caliper and a brake pad of the brake to realize parking brake.

In other embodiments, the brake may be a disc brake or a drum brake.

In other embodiments, the speed reducer 5 in the milling machine may not be connected with a brake, and only the motor 4 is used for recovering kinetic energy to generate braking moment, so that the purpose of the utility model can be achieved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. The utility model provides a milling machine, includes frame (1), frame (1) is by going to be equipped with front wheel subassembly (2), aircraft bonnet and rear wheel subassembly (3) after going to in proper order, the aircraft bonnet internal rotation is equipped with mills the plane drum, its characterized in that: front wheel subassembly (2) and/or rear wheel subassembly (3) are including driving the system of traveling by electricity, it includes motor (4), speed reducer (5), wheel (6) and supporting component to drive the system of traveling by electricity, motor (4) and speed reducer (5) are fixed to be located on the supporting component, motor (4), speed reducer (5) and wheel (6) are the transmission in proper order and are continuous.

2. The milling machine of claim 1, wherein: the motor (4), the speed reducer (5) and the wheels (6) are coaxially arranged.

3. The milling machine of claim 1, wherein: the motor (4) and the speed reducer (5) are connected through a spline.

4. The milling machine of claim 1, wherein: the supporting component comprises a bracket (7) and a supporting plate (8) which are connected, the bracket (7) is of an arc structure matched with the shape of the motor (4), and the supporting plate (8) is provided with an annular structure used for penetrating through the speed reducer (5).

5. The milling machine of claim 4, wherein: the bracket (7) is provided with a plurality of through holes (9) along the circumferential direction.

6. The milling machine of any one of claims 1-5, wherein: front wheel subassembly (2) are including link (10), steering linkage (11), steering cylinder (12) and two electricity drive traveling system, link (10) with frame (1) is connected, the both ends of link (10) are rotated with the supporting component of two electricity drive traveling system respectively and are connected, the both ends that turn to link (11) also rotate with the supporting component of two electricity drive traveling system respectively and are connected, the one end of steering cylinder (12) with link (10) are rotated and are connected, the other end of steering cylinder (12) is rotated with the supporting component of one of them in two electricity drive traveling system and is connected.

7. The milling machine of any one of claims 1-5, wherein: rear wheel subassembly (3) are including two lift landing legs (13) and two electricity drive system of traveling, and two lift landing legs (13) and two electricity drive system one-to-one settings of traveling, and the flexible end and the supporting component of lift landing leg (13) are connected, and the flexible end of lift landing leg (13) is formed with curved fender (14).

8. The milling machine of claim 7, wherein: one lifting supporting leg (13) of the two lifting supporting legs (13) is fixedly connected with the machine frame (1), and the other lifting supporting leg (13) is rotatably connected with the machine frame (1) through a swinging frame (15) connected with the other lifting supporting leg.

9. The milling machine of any one of claims 1-5, wherein: the electric vehicle is characterized in that the machine frame (1) is sequentially provided with a cabin covering part (16), a battery (17), a driving control console (18) and a material conveying machine (19) from front to back, a ceiling (20) is arranged above the driving control console (18), an electric cabinet is arranged on the battery (17), and the electric cabinet is connected with the motor (4).

10. The milling machine of claim 9, wherein: still including milling the plane motor and milling the plane reduction gear, mill the plane motor with the electric cabinet is connected, mill the plane reduction gear with it is connected to mill the plane motor, mill the plane drum with it is connected to mill the plane reduction gear.