CN204266100U - Pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door - Google Patents
Pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door Download PDFInfo
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- CN204266100U CN204266100U CN201420645424.9U CN201420645424U CN204266100U CN 204266100 U CN204266100 U CN 204266100U CN 201420645424 U CN201420645424 U CN 201420645424U CN 204266100 U CN204266100 U CN 204266100U
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- valve
- priority traffic
- gradient control
- flow pressure
- stage flow
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Abstract
Pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door, it comprises motor, two_stage flow pressure-gradient control valve group, is arranged on the slide rail mixing hopper top side wall, slide rail extends to headstock direction, the support bar for supporting extension slide rail is provided with in the middle part of extension, support bar one end is fixedly connected with slide rail, and the other end is fixedly connected with car body; Slide rail is provided with can along the door-plate of slide rail movement; Motor drives door-plate to slide; Two_stage flow pressure-gradient control valve group comprises oil cylinder, pressure oil pipeline, return line, the first priority traffic valve, the second priority traffic valve and reversal valve; Oil cylinder accesses the first priority traffic valve by pressure oil pipeline; First priority traffic valve accesses the second priority traffic valve; First priority traffic valve accesses oil cylinder by return line; Second priority traffic valve access reversal valve; Reversal valve accesses oil cylinder by return line; Reversal valve is connected with motor.The utility model structure is simple, good sealing effect.
Description
Technical field
The utility model relates to a kind of pitch containing two_stage flow pressure-gradient control valve group and to care the car sliding door, is mainly used in pitch and cares the car mixing hopper.
Background technology
Pitch sprinkling car is cared the car also known as pitch, and be a kind of dark-coloured pavement construction machinery, it is highway, urban road, the capital equipment that airport and port and pier are built.At employing pitch penetration method, when bitumen layer paving surface therapy builds flexible pavement or maintenance pitch or residual-oil pavement, pitch sprinkling car can be used to transport and (comprises hot pitch with spread liquid bitumen, mulseal and residual oil): it to the soil supply asphalt binder raveled on the spot, can also build asphalt soil stabilization road surface or sub-surface in addition.
Because pitch sprinkling car needs transport and spread liquid bitumen, and the temperature that liquid bitumen keeps certain should be made in transportation, therefore, pitch should be avoided in transportation to skid off from mixing hopper, current bituminous mixture case visit use hydraulic jack upward or side open the door, this structure not only causes the liquid bitumen of high temperature may be sliding from mixing hopper, and when also causing feeding, door height increases, impact charging or side members pollution bituminous mixture.
Summary of the invention
In order to solve Problems existing in background technology, the utility model provides a kind of pitch containing two_stage flow pressure-gradient control valve group to care the car sliding door, and this slide door structure is simple, good sealing effect.
Concrete technical solution of the present utility model is as follows:
A kind of pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door, it is characterized in that: comprise motor, two_stage flow pressure-gradient control valve group, be arranged on the slide rail mixing hopper top side wall, slide rail extends to headstock direction, the support bar for supporting extension slide rail is provided with in the middle part of extension, support bar one end is fixedly connected with slide rail, and the other end is fixedly connected with car body; Described slide rail is provided with can along the door-plate of slide rail movement; Described motor drives door-plate to slide; Described two_stage flow pressure-gradient control valve group comprises oil cylinder, pressure oil pipeline, return line, the first priority traffic valve, the second priority traffic valve and reversal valve; Described oil cylinder accesses the first priority traffic valve by pressure oil pipeline; Described first priority traffic valve accesses the second priority traffic valve; Described first priority traffic valve accesses oil cylinder by return line; Described second priority traffic valve access reversal valve; Described reversal valve accesses oil cylinder by return line; Described reversal valve is connected with motor.
Above-mentioned door-plate moves along slide rail and specifically door-plate both sides and slide rail cooperation place is provided with groove, and groove internal fixtion is provided with chain, and the length of chain is less than the length of groove; Described mixing hopper is provided with sprocket wheel on the sidewall of headstock, sprocket wheel and chain suitable.
The length of above-mentioned chain is 4/5 ~ 9/10 of groove length, and chain is arranged in the middle part of groove.
Above-mentioned sprocket wheel is driven by motor and rotates.
Above-mentioned two_stage flow pressure-gradient control valve group also comprises the first overflow valve, and described pressure oil pipeline is by the first overflow valve access return line.
Above-mentioned two_stage flow pressure-gradient control valve group also comprises the second overflow valve, and described second priority traffic valve is successively by the second overflow valve and the first overflow valve access return line.
Above-mentioned first priority traffic valve comprises the first main hydraulic fluid port and the first secondary hydraulic fluid port; First main hydraulic fluid port of described first priority traffic valve accesses the second priority traffic valve; First secondary hydraulic fluid port of described first priority traffic valve accesses oil cylinder by return line.
Above-mentioned second priority traffic valve comprises the second main hydraulic fluid port and the second secondary hydraulic fluid port; Second secondary hydraulic fluid port access reversal valve of described second priority traffic valve; Second main hydraulic fluid port of described second priority traffic valve accesses the first overflow valve by the second overflow valve.
Above-mentioned reversal valve is 34 logical reversal valves.
The utility model advantage is as follows:
Should be simple containing the pitch of two_stage flow pressure-gradient control valve group slide door structure of caring the car, avoid existing above or the side mode of the opening the door problem of bringing highly increase and material to skid off; Meanwhile, because door-plate is all the time towards mixing hopper direction, door-plate is avoided to the full extent by outside impurity pollution thus to the problem causing pitch to pollute.3rd, the two_stage flow pressure-gradient control valve group that the utility model adopts, by the simple annexation between the first priority traffic valve, the second priority traffic valve and reversal valve, form flow pressure-gradient control valve group, be connected by inside tank between valve with valve, eliminate pipeline to each other to connect, simplify operation, installation is saved time and attractive in appearance; And be not easy to occur leaking, safe and reliable.The utility model can make motor rotary speed and turn to adjustable; motor is stopped when not using motor; hydraulic oil is made directly to get back to fuel tank; reduce system power dissipation; overflow valve protection motor can not transship; the pipeline simultaneously simplifying oil circuit connects, easy to use, simplifies the difficulty of regular maintenance and accident subsequent treatment.
Accompanying drawing explanation
Fig. 1 is the utility model door-plate closed condition structural representation;
Fig. 2 is the utility model door-plate open mode structural representation;
Fig. 3 is the structural representation of two_stage flow pressure-gradient control valve group provided by the utility model;
Accompanying drawing is detailed as follows:
1-first overflow valve; 2-first priority traffic valve; 3-second priority traffic valve; 4-reversal valve; 5-second overflow valve; 6-motor; 7-support bar; 8-slide rail; 9-door-plate; 10-chain.
Detailed description of the invention
Below in conjunction with accompanying drawing Fig. 1, Fig. 2, the utility model is described in detail:
The slide rail 8 being arranged on mixing hopper top side wall should be comprised containing pitch of two_stage flow pressure-gradient control valve group sliding door of caring the car, because sliding door door-plate 9 carries out opening and closing by slide rail 8, so the length of slide rail 8 at least should ensure that the space that rear mixing hopper more than 2/3 opened by door-plate 9 is exposed, so that operation; Therefore, slide rail 8 needs to extend along door-plate 9 direction of motion; In order to avoid increasing length over ends of body, slide rail 8 should be selected to extend to headstock direction.
Due to sliding door door-plate 9 heavier mass, simple slide rail 8 cannot support, and therefore needs the support component increasing slide rail 8; Can select bottom the slide rail 8 extended and arrange at least one support bar 7 between car body, the quantity of support bar 7 and intensity should be relevant to the material of door-plate 9 and weight.
Because sliding door door-plate 9 needs to move along slide rail 8; therefore needing, corresponding slide unit is set mobile to ensure; a kind of relative movement mode is provided in the program, but is not limited to this move mode, anyly can make sliding door door-plate 9 along the scheme of slide rail 8 movement all at the row of this case protection.
Just above-mentioned move mode is specifically described below:
First, door-plate 9 both sides are provided with groove, groove and slide rail 8 suitable, to ensure that door-plate 9 is relative airtight with mixing hopper under closed condition.
Secondly, door-plate 9 moves along slide rail 8 mode adopting sprocket wheel and chain 10 to coordinate to carry out, at groove internal fixtion, chain 10 is set, at mixing hopper, sprocket wheel is set on the sidewall of headstock, sprocket wheel engages with chain 10, sprocket wheel rotates and door-plate can be driven to move to sprocket wheel direction of rotation, and sprocket wheel drives by motor or other modes.
Again, in order to avoid sprocket wheel rotates excessively, door-plate is deviate from from compound box top, the length of chain 10 should be controlled, or set up limiting component in the end of chain 10, advise the length setting of chain 10 being 4/5 ~ 9/10 of groove length, and chain 10 is arranged in the middle part of groove.
To sum up, the technical scheme that the utility model provides, structure is simple, effectively can solve problems of the prior art.
See Fig. 3, the two_stage flow pressure-gradient control valve group that the utility model adopts comprises oil cylinder, pressure oil pipeline, return line, the first priority traffic valve, the second priority traffic valve and reversal valve; Oil cylinder accesses the first priority traffic valve by pressure oil pipeline; First priority traffic valve accesses the second priority traffic valve; First priority traffic valve accesses oil cylinder by return line; Second priority traffic valve access reversal valve; Reversal valve accesses oil cylinder by return line.
The utility model in use, first oily by pressure oil pipeline pumping pressure by oil cylinder, pressure oil, by being directly delivered to the second priority traffic valve 3 after the first priority traffic valve 2, carrying out adjusting agent by the second priority traffic valve 3 by the rotating speed of reversal valve 4 pairs of motors 6 and direction and controls; Meanwhile, hydraulic control can be carried out to other motors 6 by the second priority traffic valve 3.
Two_stage flow pressure-gradient control valve group also comprises the first overflow valve 1, and pressure oil pipeline accesses return line by the first overflow valve 1.When the hypertonia of the pressure oil in pressure oil pipeline, directly can be delivered to return line by the first overflow valve 1 provided by the utility model, finally get back in oil cylinder.The appearance of the first overflow valve 1, avoids the overload of priority traffic valve, and then protects the use safety of motor 6.
Two_stage flow pressure-gradient control valve group also comprises the second overflow valve 5, second priority traffic valve 3 and accesses return line by the second overflow valve 5 and the first overflow valve 1 successively.
First priority traffic valve 2 comprises the first main hydraulic fluid port and the first secondary hydraulic fluid port; First main hydraulic fluid port of the first priority traffic valve 2 accesses the second priority traffic valve 3; First secondary hydraulic fluid port of the first priority traffic valve 2 accesses oil cylinder by return line.When hypertonia in the first priority traffic valve 2, directly can be delivered to return line by the secondary hydraulic fluid port of the first pressure-gradient control valve, finally get back in oil cylinder.
Second priority traffic valve 3 comprises the second main hydraulic fluid port and the second secondary hydraulic fluid port; Second secondary hydraulic fluid port access reversal valve of the second priority traffic valve 3; Second main hydraulic fluid port of the second priority traffic valve accesses the first overflow valve by the second overflow valve.When hypertonia in the second priority traffic valve 3, directly pressure oil can be delivered to return line by the second overflow valve 5, finally get back in oil cylinder.
The reversal valve 4 that the utility model adopts is any one 34 logical reversal valves 4.
Motor and secondary oil circuit P2 flow control valve group, this valve group effect is: when the engine is idling, and be not now the engine speed of machine construction, P1 flow is less, but will ensure that machine can realize the P2 flow of basic function, sets up priority traffic valve 2.When motor is working speed, P2 is constant, and now P1 is comparatively large, and adjustment priority traffic valve 1 adjusts the rotating speed of motor, and reversal valve adjusts positive and negative rotation of motor and quits work.Set up overflow valve 2 20bar lower than overflow valve 1, the system overload of P2 back protected by overflow valve 2, and overflow valve 1 protects whole valve group and motor overload.The pipeline simultaneously simplifying oil circuit connects.
Two_stage flow pressure-gradient control valve group provided by the utility model is by the simple annexation between flow pressure-gradient control valve and reversal valve 4; form flow pressure-gradient control valve group; motor 6 rotating speed can be made and turn to adjustable; stopping motor 6 when not using motor 6, making hydraulic oil directly get back to fuel tank, reduce system power dissipation; first overflow valve 1 protects motor 6 to transship; the pipeline simultaneously simplifying oil circuit connects, easy to use, simplifies the difficulty of regular maintenance and accident subsequent treatment.
Claims (9)
1. the pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door, it is characterized in that: comprise motor, two_stage flow pressure-gradient control valve group, be arranged on the slide rail mixing hopper top side wall, slide rail extends to headstock direction, the support bar for supporting extension slide rail is provided with in the middle part of extension, support bar one end is fixedly connected with slide rail, and the other end is fixedly connected with car body; Described slide rail is provided with can along the door-plate of slide rail movement; Described motor drives door-plate to slide;
Described two_stage flow pressure-gradient control valve group comprises oil cylinder, pressure oil pipeline, return line, the first priority traffic valve, the second priority traffic valve and reversal valve; Described oil cylinder accesses the first priority traffic valve by pressure oil pipeline; Described first priority traffic valve accesses the second priority traffic valve; Described first priority traffic valve accesses oil cylinder by return line; Described second priority traffic valve access reversal valve; Described reversal valve accesses oil cylinder by return line; Described reversal valve is connected with motor.
2. the pitch containing two_stage flow pressure-gradient control valve group according to claim 1 is cared the car sliding door, it is characterized in that: described door-plate moves along slide rail and specifically door-plate both sides and slide rail cooperation place is provided with groove, groove internal fixtion is provided with chain, and the length of chain is less than the length of groove; Described mixing hopper is provided with sprocket wheel on the sidewall of headstock, sprocket wheel and chain suitable.
3. the pitch containing two_stage flow pressure-gradient control valve group according to claim 2 is cared the car sliding door, it is characterized in that: the length of described chain is 4/5 ~ 9/10 of groove length, and chain is arranged in the middle part of groove.
4. the pitch containing two_stage flow pressure-gradient control valve group according to claim 3 is cared the car sliding door, it is characterized in that: described sprocket wheel is driven by motor and rotates.
5. to care the car sliding door containing the pitch of two_stage flow pressure-gradient control valve group according to the arbitrary claim of claim 1-4, it is characterized in that: described two_stage flow pressure-gradient control valve group also comprises the first overflow valve, described pressure oil pipeline is by the first overflow valve access return line.
6. the pitch containing two_stage flow pressure-gradient control valve group according to claim 5 is cared the car sliding door, it is characterized in that: described two_stage flow pressure-gradient control valve group also comprises the second overflow valve, described second priority traffic valve is successively by the second overflow valve and the first overflow valve access return line.
7. the pitch containing two_stage flow pressure-gradient control valve group according to claim 6 is cared the car sliding door, it is characterized in that: described first priority traffic valve comprises the first main hydraulic fluid port and the first secondary hydraulic fluid port; First main hydraulic fluid port of described first priority traffic valve accesses the second priority traffic valve; First secondary hydraulic fluid port of described first priority traffic valve accesses oil cylinder by return line.
8. the pitch containing two_stage flow pressure-gradient control valve group according to claim 7 is cared the car sliding door, it is characterized in that: described second priority traffic valve comprises the second main hydraulic fluid port and the second secondary hydraulic fluid port; Second secondary hydraulic fluid port access reversal valve of described second priority traffic valve; Second main hydraulic fluid port of described second priority traffic valve accesses the first overflow valve by the second overflow valve.
9. the pitch containing two_stage flow pressure-gradient control valve group according to claim 8 is cared the car sliding door, it is characterized in that: described reversal valve is 34 logical reversal valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645424.9U CN204266100U (en) | 2014-10-31 | 2014-10-31 | Pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645424.9U CN204266100U (en) | 2014-10-31 | 2014-10-31 | Pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204266100U true CN204266100U (en) | 2015-04-15 |
Family
ID=52800972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420645424.9U Expired - Fee Related CN204266100U (en) | 2014-10-31 | 2014-10-31 | Pitch containing two_stage flow pressure-gradient control valve group is cared the car sliding door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204266100U (en) |
-
2014
- 2014-10-31 CN CN201420645424.9U patent/CN204266100U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20171031 |