CN201850492U - Milling machine travel driving device - Google Patents
Milling machine travel driving device Download PDFInfo
- Publication number
- CN201850492U CN201850492U CN201020033182XU CN201020033182U CN201850492U CN 201850492 U CN201850492 U CN 201850492U CN 201020033182X U CN201020033182X U CN 201020033182XU CN 201020033182 U CN201020033182 U CN 201020033182U CN 201850492 U CN201850492 U CN 201850492U
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- CN
- China
- Prior art keywords
- milling machine
- flow divider
- flow distributing
- rom drive
- divider piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The embodiment of the utility model discloses a milling machine travel driving device. The device comprises a hydraulic pump used for providing power, driving motors used for travel driving, and a flow distributing valve block provided with four flow distributing ports, wherein, the flow distributing valve block is connected with a high pressure working cavity of the hydraulic pump and high pressure cavities of the driving motors. The four flow distributing ports of the flow distributing valve block evenly distribute hydraulic oil output by the high pressure working cavity of the hydraulic pump to four driving motors, thereby enabling the four driving motors to rotate at consistent speeds and achieving travel stability of a milling machine. Meanwhile, the flow distributing valve block is further provided with an oil return cavity; and when the ground is slippery, the oil return cavity can supplement hydraulic pressure of the driving motors through the four flow distributing ports, thereby performing a power assisting function.
Description
Technical field
The utility model relates to the travel driving unit of engineering mechanical device technical field, particularly a kind of milling machine.
Background technology
Milling machine is one of main machine of asphalt pavement conserving construction machinery, is mainly used in asphalt concrete surface layers removings such as highway, urban road and gathers around bag, oil wave, reticulate pattern, rut etc.Old shop layer with milling machine milling damage, re-laying new surface layer is a kind of most economical modernized maintenance process, because its high efficiency, construction technology are simple, milling depth is easy to control, flexible to operation, mobility good, the old material of milling can directly be recycled etc., thereby be widely used in cities and towns town road and the speedway maintenance project.General milling machine by motor, vehicle frame, milling rotor, milling depth adjusting device, Hydraulic Elements, accumulator conveyer, turn to be, braking system and operation control system etc. form.Operating personnel according to actual needs on the operation control system by on corresponding button come the input operation order, milling machine is started working according to the transmission system of self, the milling rotor is the main working parts of milling machine, it is made up of milling armature spindle, tool rest and cutter head etc., directly contact, carry out the purpose that work reaches milling by its milling cutter that rotates at a high speed with the road surface.Milling machine is provided with self-level(l)ing device, as the milling datum, controls two positioning hydraulic cylinders with milling rotor side cover, make given milling depth keep constant; Its hydraulic system is used for driving the rotation of milling rotor, complete machine walking, servicing unit work etc., is generally the separate closed type hydraulic system of many pumps, do not disturb mutually during work and reliability higher; The milling machine that has is installed recliner as required, is used for controlling the gradient of rotor; General large-scale milling machine is all by the accumulator conveyer of being made up of conveyer belt and loading head, and it can be concentrated the bulk cargo that mills out and be sent on the transporting cars of random walk, and the height of conveying arm can be regulated and can swing, to adjust discharge position.
In the present milling machine, the single hydraulic motor of the general employing of the running gear of milling machine connects with the rotating drive bridging or drive mechanism connects, and drives the four wheels walking.In existing milling machine running gear, when slipperiness on roads or certain wheel were unsettled, this wheel was because the variation of pressure, and its rotating speed can accelerate, and can't keep that to take turns rotor speed consistent with other, thereby influenced the carrying out of milling machine milling work.
The utility model content
In view of this, the utility model provides a kind of milling machine travel driving unit, can't keep taking turns the consistent problem of rotor speed with other avoiding when slipperiness on roads or certain wheel are unsettled.
For achieving the above object, the utility model provides following technical scheme:
The milling machine travel driving unit is characterized in that, comprising:
Be used to provide the hydraulic pump of power;
Be used to drive the CD-ROM drive motor of walking;
Be provided with the flow divider piece of four diversion port, this flow divider piece connects the high pressure chest of hydraulic pump high-pressure working chamber and CD-ROM drive motor.
Preferably, in said apparatus, described CD-ROM drive motor is four, is arranged at respectively on the four wheels of milling machine.
Preferably, in said apparatus, described flow divider piece also is provided with oil back chamber.
Preferably, in said apparatus, also comprise secondary flow divider piece, this flow divider piece connects the operating on low voltage chamber of hydraulic pump and the low pressure chamber of CD-ROM drive motor.
From technique scheme as can be seen, in the utility model, adopt the design of flow divider piece, make driving pump when four CD-ROM drive motor delivery hydraulic pressure power, hydraulic oil all can be given four CD-ROM drive motors, make the rotating speed unanimity of the four wheels of milling machine.This structure is even at slipperiness on roads or uneven when making a certain wheel unsettled, still can guarantee the four wheels rotating speed unanimity of milling machine, thereby for the milling work of milling machine provides stability, solve the shortcoming of prior art.And the utility model when CD-ROM drive motor hydraulic pressure is not enough, can pass through four the diversion port supplementary pressures of the oil back chamber of flow divider piece through the flow divider piece at slipperiness on roads.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The milling machine running gear schematic diagram that Fig. 1 provides for the utility model embodiment;
The vertical view of the flow divider block structure of the milling machine that Fig. 2 provides for the utility model embodiment;
The front view of the flow divider block structure of the milling machine that Fig. 3 provides for the utility model embodiment;
The schematic diagram of the running gear of the milling machine that Fig. 4 provides for the utility model embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of milling machine travel driving system, to satisfy the stability of milling machine walking.
As shown in Figure 1, four CD-ROM drive motors 1 are arranged on the four wheels, walk in order to wheels.The high-pressure working chamber 2-1 of driving pump 2 links to each other with the access interface of flow divider piece 3, and four diversion port of flow divider piece link to each other with the high pressure chest interface 1-1 of four CD-ROM drive motors respectively.The operating on low voltage chamber 2-2 of driving pump 2 links to each other with the access interface of secondary flow divider piece 4, and four diversion port of secondary flow divider piece 4 link to each other with the low pressure chamber interface 1-2 of four CD-ROM drive motors respectively.
Figure 2 shows that the vertical view of flow divider piece 3 structures.Four diversion port of flow divider piece 3 are A, B, C, D, and port SP connects oil sump tank.
Figure 3 shows that the front view of flow divider piece 3 structures.Port P connects the high-pressure working chamber 2-1 of driving pump 2, and port T takes back the stream pipeline.
Figure 4 shows that the schematic diagram of running gear provided by the utility model.Driving pump high-pressure working chamber 2-1 links to each other with flow divider piece port P among the figure, flow divider piece 3 four diversion port A, B, C, D link to each other with four CD-ROM drive motor high pressure chest interface 1-1 respectively, driving pump operating on low voltage chamber 2-2 links to each other with four CD-ROM drive motor low pressure chamber interfaces respectively after secondary flow divider piece 4 shuntings, and the port x of flow divider piece 3 links to each other with driving pump repairing mouth.The T chamber connects return duct.The SP chamber takes back fuel tank, plays the oil suction effect.When slipperiness on roads, the oil back chamber port SP of flow divider piece 3 passes through the oil sump tank oil suction, and replenishes hydraulic pressure through flow divider piece port A, B, C, D to four CD-ROM drive motors by one way valve, keeps the pressure stability of CD-ROM drive motor.
From technique scheme as can be seen, in the utility model, adopt the design of flow divider piece, make driving pump when four CD-ROM drive motor delivery hydraulic pressure power, can all give four CD-ROM drive motors by hydraulic oil, make the rotating speed unanimity of the four wheels of milling machine.This structure is even at slipperiness on roads or uneven when making a certain wheel unsettled, still can guarantee the four wheels rotating speed unanimity of milling machine, thereby for the milling work of milling machine provides stability, solve the shortcoming of prior art.And the utility model when CD-ROM drive motor hydraulic pressure is not enough, can pass through four the diversion port supplementary pressures of the oil back chamber of flow divider piece through the flow divider piece at slipperiness on roads.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. the milling machine travel driving unit is characterized in that, comprising:
Be used to provide the hydraulic pump of power;
Be used to drive the CD-ROM drive motor of walking;
Be provided with the flow divider piece of four diversion port, this flow divider piece connects the high pressure chest of hydraulic pump high-pressure working chamber and CD-ROM drive motor.
2. travel driving unit according to claim 1 is characterized in that, described CD-ROM drive motor is four, is arranged at respectively on the four wheels of milling machine.
3. travel driving unit according to claim 1 is characterized in that, described flow divider piece also is provided with oil back chamber.
4. travel driving unit according to claim 1 is characterized in that, also comprises secondary flow divider piece, and this pair flow divider piece connects the operating on low voltage chamber of hydraulic pump and the low pressure chamber of CD-ROM drive motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020033182XU CN201850492U (en) | 2010-01-19 | 2010-01-19 | Milling machine travel driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020033182XU CN201850492U (en) | 2010-01-19 | 2010-01-19 | Milling machine travel driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201850492U true CN201850492U (en) | 2011-06-01 |
Family
ID=44092891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020033182XU Expired - Fee Related CN201850492U (en) | 2010-01-19 | 2010-01-19 | Milling machine travel driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201850492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233935A (en) * | 2013-04-28 | 2013-08-07 | 徐工集团工程机械股份有限公司科技分公司 | Integrated valve group of hydraulic system |
-
2010
- 2010-01-19 CN CN201020033182XU patent/CN201850492U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233935A (en) * | 2013-04-28 | 2013-08-07 | 徐工集团工程机械股份有限公司科技分公司 | Integrated valve group of hydraulic system |
| CN103233935B (en) * | 2013-04-28 | 2015-05-20 | 徐工集团工程机械股份有限公司科技分公司 | Integrated valve group of hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20130119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |