CN217733700U

CN217733700U - Milling machine

Info

Publication number: CN217733700U
Application number: CN202220949619.7U
Authority: CN
Inventors: 吴文朴; 叶根翼; 郑旭钦
Original assignee: Fujian Xingyi Machinery Co ltd
Current assignee: Fujian Xingyi Intelligent Equipment Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-11-04
Anticipated expiration: 2032-04-22

Abstract

The application relates to the field of pavement construction equipment, in particular to a milling machine, which comprises a frame, a mounting frame hinged to the frame and a milling device arranged on the frame; the frame is provided with a front wheel; the mounting rack is provided with a rear wheel; the milling device is positioned between the front wheel and the mounting frame; the frame is provided with an electric push rod; the driving end of the electric push rod is hinged to the mounting frame; the electric push rod is used for driving the mounting frame to turn over so as to adjust the milling depth of the milling device. This application has the effect that improves and adjust milling machine milling depth efficiency.

Description

Milling machine

Technical Field

The application relates to the field of pavement construction equipment, in particular to a milling machine.

Background

Milling machines are commonly used for roughening concrete pavements, and are widely applied to the field of road construction.

The related art discloses a milling machine, including the frame and the bearing frame that links to each other with the frame, the bearing frame rotates and is connected with the blade, has front wheel and rear wheel respectively around the bearing frame, and the rear wheel is installed on the rear wheel support, and the one end of rear wheel support is articulated with the bearing, and the other end articulates there is the bracing piece. One end of the support rod, which is far away from the rear wheel support, is provided with internal threads and is in threaded connection with a screw rod matched with the internal threads, and the other end of the screw rod is provided with a hand wheel. The periphery of the screw rod is provided with a rocker which is rotationally connected with the frame. The milling depth of the milling machine is controlled by adjusting the contact height of the rear wheel and the ground, the rocker arm is rotated to perform coarse adjustment rapidly, and the hand wheel is rotated to perform fine adjustment through the screw rod, so that the milling depth of the milling machine is accurately controlled.

In view of the above-mentioned related arts, the inventor believes that the swinging of the rocker arm or the rotation of the screw requires the operator to make continuous adjustment to reach a specified milling depth of the milling machine, and the efficiency of adjusting the milling depth of the milling machine needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency of adjusting the milling depth of a milling machine, the present application provides a milling machine.

The application provides a milling machine adopts following technical scheme:

a milling machine comprises a frame, a mounting frame hinged to the frame and a milling device mounted on the frame; the frame is provided with a front wheel; the mounting rack is provided with a rear wheel; the milling device is positioned between the front wheel and the mounting frame; the frame is provided with an electric push rod; the driving end of the electric push rod is hinged to the mounting frame; the electric push rod is used for driving the mounting frame to turn over so as to adjust the milling depth of the milling device.

Through adopting above-mentioned technical scheme, when milling machine's milling depth is adjusted to needs, start electric putter, electric putter orders about the relative frame upset of mounting bracket, and along with the upset angle change of the relative frame of mounting bracket, the distance between milling equipment and the working face also correspondingly changes, promotes the frame, through front wheel and rear wheel alright mill the operation. Compared with the condition that the milling depth of the milling machine needs to be manually adjusted, the labor intensity of manually adjusting the milling depth of the milling machine is reduced and the efficiency of adjusting the milling depth of the milling machine is improved through the mounting frame and the electric push rod which are hinged to the rack.

Optionally, the frame is hinged to an overhead frame, and the overhead frame is used for suspending the rear wheel to separate the milling device from a working surface.

By adopting the technical scheme, when the milling device needs to be maintained or replaced, an operator can overturn the overhead frame firstly to separate the rear wheel from the working surface, so that the movement of the frame on the working surface is limited, the milling device can be maintained and replaced, and the maintenance or replacement efficiency of the operator on the milling device is improved.

Optionally, the overhead frame is provided with a travelling wheel, and the travelling wheel is used for matching with the front wheel to move the rack.

By adopting the technical scheme, when the milling machine needs to be moved to the designated position, an operator turns over the overhead frame firstly, idles the rear wheel, enables the travelling wheels to support the ground, enables the milling device to be separated from the ground, and moves the milling machine to the designated position through the travelling wheels and the front wheels. After the milling machine moves to the designated position, the overhead frame is turned over, the rear wheel is abutted against the ground, the milling device is abutted against the working surface, and the milling device is started to perform milling operation. Through overhead and walking wheel, reduce milling machine transportation in-process milling device and the frictional risk in ground, reduce the risk of milling device wearing and tearing in the transportation, still realize the effect of the coarse adjustment of milling depth to milling device simultaneously.

Optionally, the frame is provided with an elastic limiting member; the elastic limiting part is used for fixing the overturning state of the overhead frame relative to the rack.

Through adopting above-mentioned technical scheme, the introduction of elasticity locating part, at the milling machine removal operation in-process, reduces the risk of overhead frame and working face contact to reduce the risk of overhead frame wearing and tearing, improve the life of overhead frame.

Optionally, the elastic limiting member comprises a gas spring hinged to the frame and a pedal deflector rod hinged to the frame; the side walls, far away from each other, of the pedal deflector rod are respectively provided with a first hinge lug and a second hinge lug; the first hinge lug is hinged with the end part of the gas spring; the second hinge lug is hinged with the overhead frame; the overhead frame is provided with a limiting block; the limiting block is used for abutting against the second hinge lug; when the second hinge lug abuts against the limiting block, the overhead frame supports the milling device away from a working surface.

By adopting the technical scheme, when the milling machine needs to be transported or the milling depth of the milling device is roughly adjusted, an operator steps on the pedal deflector rod by feet, so that the overhead frame is overturned relative to the frame, the second hinge lug is abutted against the limiting block, and the rear wheel and the milling device are temporarily far away from the working face. After the milling machine is transferred to the designated position, an operator dials the pedal deflector rod to turn the overhead frame relative to the frame, so that the rear wheel and the milling device are supported on the working surface again. Through pedal driving lever, for operating personnel provides the application of force position of roll-over stand empty rack, the relative frame roll-over stand empty rack of operating personnel of being convenient for alleviates operating personnel's the intensity of labour of stooping roll-over stand empty rack.

Optionally, a manual shift lever is arranged on the side wall of the pedal shift lever; the manual shifting lever is used for separating the second hinge lug from the abutting joint with the limiting block.

By adopting the technical scheme, the manual driving lever is introduced, so that the overturning scheme for overturning the overhead frame is added for the operator, the operator can conveniently overturn the overhead frame by hands or feet, and the labor intensity of the operator for continuously overturning the overhead frame by feet is reduced.

Optionally, the milling device includes a cutter shaft rotatably connected to the frame, a milling blade detachably connected to the periphery of the cutter shaft, and a driving motor mounted to the frame; a transmission part connected with the rotating shaft of the driving motor is arranged at one end of the cutter shaft; the transmission part is used for connecting the driving motor and the cutter shaft so that the driving motor drives the cutter shaft to rotate; the frame can be dismantled and be connected with the balancing weight, the balancing weight is located the arbor is kept away from the one end of driving medium.

By adopting the technical scheme, the driving motor is started, drives the cutter shaft to rotate, and realizes the effect of milling the working surface through the milling blades on the peripheral side of the cutter shaft. Because be connected through the driving medium between driving motor and the arbor, and the driving medium is located the one end of arbor, easily leads to frame part weight to be partial to be inclined to the one side of installing the driving medium, the milling depth that milling device appears at the working face phenomenon that differs, through the weight balance of balancing weight, reduces the risk that milling machine heeled at the operation in-process to reduce the risk that milling device differs at the milling depth of working face.

Optionally, the mounting bracket is provided with a self-propelled mechanism for driving the rear wheel to rotate.

Through adopting above-mentioned technical scheme, start self-propelled mechanism, self-propelled mechanism orders about the rear wheel and rotates, applys auxiliary thrust for milling machine's removal, alleviates operating personnel and promotes the intensity of labour that milling machine removed.

In summary, the present application includes at least one of the following beneficial technical effects:

1. compared with the condition that the milling depth of the milling machine needs to be manually adjusted, the electric push rod drives the mounting frame to overturn relative to the frame through the mounting frame and the electric push rod which are hinged to the frame, and the distance between the milling device and the working surface correspondingly changes along with the change of the overturning angle of the mounting frame relative to the frame, so that the labor intensity of manually adjusting the milling depth of the milling machine is reduced, and the efficiency of adjusting the milling depth of the milling machine is improved;

2. through the overhead frame and the travelling wheels, the risk of friction between the milling device and the ground in the transportation process of the milling machine is reduced, the risk of abrasion of the milling device in the transportation process is reduced, and meanwhile, the effect of coarse adjustment of the milling depth of the milling device is realized;

3. through the weight balance of balancing weight, reduce the risk that milling machine heeled in the operation in-process to reduce the risk that milling device milled the degree of depth and differs at the working face.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram for showing the overhead frame of the embodiment of the present application in a state where the rear wheel and the milling blade holder are away from the working surface.

Fig. 3 is a schematic structural view for showing the electric push rod and the self-propelled mechanism according to the embodiment of the present application.

Fig. 4 is a schematic view of a connection structure for showing an overhead frame and an elastic limiting member according to an embodiment of the present application.

Description of the reference numerals: 1. a frame; 11. a front wheel; 2. a mounting frame; 21. a rear wheel; 3. a milling device; 31. a cutter shaft; 32. milling the insert; 33. a drive motor; 34. a transmission member; 4. a control terminal; 5. a self-propelled mechanism; 51. a speed reducer; 52. a self-propelled motor; 6. an electric push rod; 7. a balancing weight; 8. an overhead frame; 81. a traveling wheel; 9. an elastic limiting member; 91. a gas spring; 92. a pedal deflector rod; 921. a first hinge lug; 922. a second hinge lug; 93. a limiting block; 10. and a manual deflector rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses milling machine.

Referring to fig. 1 and 2, a milling machine includes a frame 1, a mounting frame 2, and a milling device 3, wherein the frame 1 is bolted with a control terminal 4, and the control terminal 4 has a display screen. The frame 1 is bolted with a front wheel 11. The mounting frame 2 is hinged to the rack 1, the mounting frame 2 is rotatably connected with two rear wheels 21, the mounting frame 2 is provided with a self-walking mechanism 5 for driving the rear wheels 21 to rotate, and the self-walking mechanism 5 is electrically connected to the control terminal 4. The milling device 3 is arranged on the frame 1, and the milling device 3 is used for milling the working surface. After the milling device 3 and the self-propelled mechanism 5 are activated by the front wheels 11 and the rear wheels 21, the milling machine can be moved to perform milling work on the working surface.

Referring to fig. 2 and 3, specifically, the frame 1 is bolted with an electric push rod 6 electrically connected to the control terminal 4, a driving end of the electric push rod 6 is hinged to the mounting frame 2, the electric push rod 6 is located between two rear wheels 21, and the milling device 3 is located between the front wheel 11 and the rear wheels 21. Starting electric putter 6, electric putter 6 drives the upset of mounting bracket 2, and electric putter 6's push rod extends or shortens, makes the relative frame 1's of mounting bracket 2 upset angle change to change the distance between milling device 3 and the working face, and then adjust milling machine's the degree of depth of milling through the mounting bracket 2 of upset.

Referring to fig. 1 and 2, the milling device 3 includes a cutter shaft 31 rotatably connected to the frame 1, a milling blade 32 detachably connected to the peripheral side of the cutter shaft 31, and a driving motor 33 bolted to the frame 1, and the type of the milling blade 32 on the peripheral side of the cutter shaft 31 is changed according to actual milling requirements. One end of the knife shaft 31 is provided with a transmission member 34 connected with the driving motor 33 in a rotating manner, and the transmission member 34 is used for connecting the driving motor 33 and the knife shaft 31 so that the driving motor 33 drives the knife shaft 31 to rotate. The transmission member 34 may be a belt pulley fixed to the end of the arbor 31 and the periphery of the rotating shaft of the driving motor 33, a belt is wound around the belt pulley, the transmission member 34 may be a sprocket fixed to the end of the arbor 31 and the periphery of the rotating shaft of the driving motor 33, and a chain is wound around and engaged with the sprocket.

Referring to fig. 1 and 2, the frame 1 is detachably connected with a counterweight 7, and the counterweight 7 is located at one end of the knife shaft 31 far away from the transmission member 34. The significance of designing the balancing weight 7 lies in: because the driving motor 33 is connected with the cutter shaft 31 through the transmission part 34, and the transmission part 34 is located at one end of the cutter shaft 31, the weight of part of the frame 1 is prone to be deviated to one side where the transmission part 34 is installed, the phenomenon that the milling depth of the milling device 3 on the working surface is different is prone to occurring, the weight balance of the balancing weight 7 is utilized to reduce the tilting risk of the milling machine in the operation process, and therefore the milling depth of the milling device 3 on the working surface is different.

Referring to fig. 2 and 3, the self-propelled mechanism 5 includes a speed reducer 51 bolted to the mounting frame 2 and a self-propelled motor 52 bolted to a side wall of the speed reducer 51, two rear wheels 21 are both connected to the speed reducer 51, the self-propelled motor 52 is electrically connected to the control terminal 4, a rotating shaft of the self-propelled motor 52 is connected to the speed reducer 51 so as to rotate the rear wheels 21 by using the self-propelled motor 52 and the speed reducer 51 in a matching manner, and a connecting manner of the rotating shaft of the self-propelled motor 52 and the speed reducer 51 is prior art and is not described herein. When the milling machine is used for milling a working surface, the self-propelled motor 52 is started, the self-propelled motor 52 drives the rear wheel 21 to rotate, the front wheel 11 is matched, the milling machine is assisted to move, and the labor intensity for pushing the milling machine to mill the working surface is reduced.

Referring to fig. 2, the frame 1 is hinged with an overhead frame 8, the overhead frame 8 is bolted with two travelling wheels 81, and the overhead frame 8 is used for suspending the rear wheel 21 to separate the milling blade 32 from the working surface. The hinging axis of the overhead frame 8 and the frame 1 is parallel to the hinging axis of the mounting frame 2 and the frame 1. The frame 1 is provided with an elastic limiting piece 9, and the elastic limiting piece 9 is used for fixing the overturning state of the frame 8 relative to the frame 1. When the milling machine needs to be transported to a specific position, the overhead frame 8 is turned over, the travelling wheels 81 are abutted to the ground, the rear wheels 21 and the milling blades 32 are separated from the ground, the milling machine can be moved to the specific position through the travelling wheels 81 and the front wheels 11, and the risk of abrasion of the milling blades 32 is reduced.

Referring to fig. 4, the elastic limiting member 9 includes a gas spring 91 hinged to the frame 1 and a pedal lever 92 hinged to the frame 1, an end of the pedal lever 92 hinged to the frame 1 is defined as a hinged end of the pedal lever 92, and an end of the pedal lever 92 away from the frame 1 is defined as a stepping end of the pedal lever 92. The side wall of the hinged end of the pedal deflector rod 92 is integrally formed with a first hinge lug 921 and a second hinge lug 922, and the two ends of the gas spring 91 are hinged to the frame 1 and the first hinge lug 921 respectively. The second hinge lug 922 allows the overhead frame 8 to hinge. The overhead frame 8 is connected with a limiting block 93 through a bolt, and the limiting block 93 is used for abutting against the second hinge lug 922.

Referring to fig. 2 and 4, a manual lever 10 is welded and fixed to a side wall of a hinged end of the pedal lever 92. When the milling depth of the milling machine or the rough milling device needs to be adjusted, the treading end of the treading deflector rod 92 is treaded, the hinged end of the treading deflector rod 92 rotates, the second hinge lug 922 abuts against the limiting block 93, the overhead frame 8 can support the rear wheel 21 and the milling blade 32 away from the working surface, and the electric push rod 6 can be started or the milling machine can be moved. After the milling machine is transferred to a designated position or the milling depth of the rough milling device is adjusted, the overhead frame 8 is swung through the manual driving lever 10, the second hinge lug 922 is separated from the abutting joint of the limiting block 93, the air spring 91 limits the overturning of the overhead frame 8, the rear wheel 21 can be abutted against the working surface again, and the milling machine can be pushed to move.

The implementation principle of the milling machine in the embodiment of the application is as follows: before transporting the milling machine to a designated position, the operator first steps on the pedal lever 92, the overhead rear wheel 21 and the milling blade 32, and pushes the milling machine to a designated working position through the road wheels 81 and the front wheel 11. After the milling machine reaches a specified working position, an operator dials the manual dial lever 10 to enable the rear wheel 21 to abut against a working surface, then the operator starts the driving motor 33 and adjusts the push rod of the electric push rod 6 to extend to a specified extension amount through the control terminal 4, the milling depth of the milling blade 32 is adjusted to a designed depth, and then the self-walking mechanism 5 is started through the control terminal 4, so that the milling machine can be pushed to perform milling operation.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A milling machine which characterized in that: the device comprises a rack (1), a mounting rack (2) hinged to the rack (1) and a milling device (3) mounted on the rack (1); the frame (1) is provided with a front wheel (11); the mounting rack (2) is provided with a rear wheel (21); the milling device (3) is positioned between the front wheel (11) and the mounting frame (2); the frame (1) is provided with an electric push rod (6); the driving end of the electric push rod (6) is hinged to the mounting frame (2); the electric push rod (6) is used for driving the mounting frame (2) to turn over so as to adjust the milling depth of the milling device (3).

2. The milling machine of claim 1, wherein: the frame (1) is hinged to an overhead frame (8), and the overhead frame (8) is used for making the rear wheel (21) overhead so as to enable the milling device (3) to be separated from a working surface.

3. The milling machine of claim 2, wherein: a walking wheel (81) is installed on the overhead frame (8), and the walking wheel (81) is used for being matched with the front wheel (11) to move the rack (1).

4. The milling machine of claim 2, wherein: the frame (1) is provided with an elastic limiting piece (9); the elastic limiting piece (9) is used for fixing the overturning state of the overhead frame (8) relative to the machine frame (1).

5. The milling machine of claim 4, wherein: the elastic limiting part (9) comprises an air spring (91) hinged to the rack (1) and a pedal deflector rod (92) hinged to the rack (1); the side walls of the pedal deflector rod (92) which are far away from each other are respectively provided with a first hinge lug (921) and a second hinge lug (922); the first hinge lug (921) is used for hinging the end part of the gas spring (91); the second hinge lug (922) is hinged with the overhead frame (8); the overhead frame (8) is provided with a limiting block (93); the limiting block (93) is used for abutting against the second hinge lug (922); when the second hinge lug (922) abuts against the limiting block (93), the overhead frame (8) supports the milling device (3) away from a working surface.

6. The milling machine of claim 5, wherein: the side wall of the pedal deflector rod (92) is provided with a manual deflector rod (10); the manual shifting lever (10) is used for separating the second hinge lug (922) from the limit block (93).

7. The milling machine of claim 1, wherein: the milling device (3) comprises a cutter shaft (31) rotatably connected to the rack (1), milling blades (32) detachably connected to the peripheral side of the cutter shaft (31) and a driving motor (33) installed on the rack (1); one end of the cutter shaft (31) is provided with a transmission piece (34) connected with the rotating shaft of the driving motor (33); the transmission piece (34) is used for connecting the driving motor (33) and the cutter shaft (31) so that the driving motor (33) drives the cutter shaft (31) to rotate; frame (1) can dismantle and be connected with balancing weight (7), balancing weight (7) are located arbor (31) are kept away from the one end of driving medium (34).

8. The milling machine of claim 1, wherein: the mounting rack (2) is provided with a self-propelled mechanism (5) which drives the rear wheel (21) to rotate.