CN202279478U - Novel hydraulic system of differential circuit - Google Patents
Novel hydraulic system of differential circuit Download PDFInfo
- Publication number
- CN202279478U CN202279478U CN 201120388210 CN201120388210U CN202279478U CN 202279478 U CN202279478 U CN 202279478U CN 201120388210 CN201120388210 CN 201120388210 CN 201120388210 U CN201120388210 U CN 201120388210U CN 202279478 U CN202279478 U CN 202279478U
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- hydraulic
- differential circuit
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- control system
- utility
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Abstract
The utility model discloses a novel hydraulic system of a differential circuit, which comprises a power device, a hydraulic control system and a hydraulic cylinder, wherein the power device is provided with a motor and a hydraulic pump; and the hydraulic control system is provided with an overflow valve which is used for communicating a left cavity and a right cavity of the hydraulic cylinder, so that the differential circuit can be formed. The novel hydraulic system of the differential circuit is reasonable in structural collocation, safe and reliable in work, free from leakage, low in noise and small in impact for all hydraulic elements, so that the service life of a device is prolonged, and the safety factor of a belt-type conveyer can be improved.
Description
Technical field
The utility model relates to a kind of novel differential circuit hydraulic efficiency pressure system, is mainly used on the belt conveyer.
Background technology
Belt conveyer is mainly by carrying roller, and support, transfer drive, compositions such as load-transfer device take-up device, take-up device are one of main composition parts of belt conveyer, use very extensive.Because locus and required tightening force is different, at present belt conveyer commonly used take-up device weight hammer type take-up device, fixed type take-up device are arranged.Various take-up devices respectively have its merits and faults:
1) weight hammer type take-up device
The weight hammer type take-up device comprises vertical heavy-hammer formula, weight tower-type, weight car formula etc.The weight hammer type take-up device is applicable to fixedly belt conveyer.Constant tightening force can be provided, the telescopic variation of automatic compensation belt, corresponding speed is fast, uses more extensive.
2) fixed type take-up device
The fixed type take-up device comprises spiral tensioning device (be applicable to that length is shorter, lower-powered conveyer can be chosen tension travel by captain's 1%～1.5%) and jinny take-up device (being applicable to the belt conveyer of big pulling force, long distance, large conveying quantity).The tension drum of fixed type take-up device is fixed the position in the conveyer operation process, and wherein the adjustment of tension travel realizes through the position that mobile phone or automatic dual mode change tension drum.Simple and compact for structure, the reliable operation of fixed type take-up device.
But the weight hammer type take-up device takes up room bigger, and tightening force can not automatic compensation in the work.The fixed type take-up device in the conveyer operation process because load-transfer device elastic deformation and plastic deformation can't timely compensations, thereby cause tightening force decline, possibly cause that load-transfer device skids on driving drum.
The utility model content
The purpose of the utility model provides a kind of novel differential circuit hydraulic efficiency pressure system.
The purpose of the utility model realizes through following technical scheme:
The novel differential circuit hydraulic efficiency pressure system of the utility model comprises engine installation, hydraulic control system and hydraulic actuating cylinder.Engine installation is provided with electrical motor and Hydraulic Pump, and hydraulic control system is provided with by pass valve, and by pass valve is communicated with two chambeies about hydraulic actuating cylinder, forms differential circuit.
Technical scheme by above-mentioned the utility model can be found out, the described novel differential circuit hydraulic efficiency pressure system of the utility model, and the structure collocation is rationally; Safe and reliable; Ne-leakage, low noise impacts little to each Hydraulic Elements; Prolong the service life of device, improved the safety factor of belt conveyer.
Description of drawings
Fig. 1 is novel differential circuit hydraulic system structure scheme drawing;
Fig. 2 is the hydraulic control system structural representation;
Fig. 3 is the differential circuit scheme drawing.
The specific embodiment
The novel differential circuit hydraulic efficiency pressure system of the utility model, the specific embodiment that it is preferable such as Fig. 1, Fig. 2, shown in Figure 3, novel differential circuit hydraulic efficiency pressure system comprises hydraulic actuating cylinder 1, hydraulic control system 3 and engine installation 4.
By pass valve 2 is communicated with hydraulic actuating cylinder about 1 two chambeies, constitutes differential circuit, improves and stretches cylinder speed, plays the effect of protection simultaneously.
In order to overcome the deficiency of existing take-up device on manufacturing and designing, in conjunction with the requirement of multiple delivery system operating condition, the utility model is designed a kind of novel differential circuit hydraulic efficiency pressure system, has both taken less space, again can automatic compensation load-transfer device tensile force.The utility model has following innovative point:
Novel differential circuit hydraulic efficiency pressure system adopts by pass valve to be communicated with two chambeies about hydraulic actuating cylinder, constitutes differential circuit, and available buffer hydraulic oil is to the impact of control element, and noise is low, the service life of extension fixture;
Novel differential circuit hydraulic efficiency pressure system adopts the differential circuit design, has improved the stretching speed of hydraulic cylinder piston rod.
Further specify below in conjunction with the principle of work of accompanying drawing novel differential circuit hydraulic efficiency pressure system:
Hydraulic Pump fuel feeding when novel differential circuit hydraulic work system, hand change over valve right position work, hydraulic oil gets into the left chamber of hydraulic actuating cylinder, and the oil return of right chamber promotes piston retraction, thereby makes the load-transfer device tensioning.
If when the instantaneous increase of belt conveyer tensile force in operational process; The left chamber oil return in time of hydraulic actuating cylinder; The instantaneous thereupon increase of hydraulic oil oil pressure in the chamber, a left side, when oil pressure was higher than the setting pressure of by pass valve 2, the hydraulic oil in the chamber, a hydraulic actuating cylinder left side was back in the right chamber of hydraulic actuating cylinder through by pass valve 2; When oil pressure during less than the setting pressure of by pass valve 2; Stop oil return,, reduced novel differential circuit hydraulic efficiency pressure system effectively because the excessive impact that causes of oil pressure to Hydraulic Elements through the oil return of differential circuit.
Hydraulic Pump fuel feeding when novel differential circuit hydraulic work system, the position work of a hand change over valve left side, hydraulic oil gets into the right chamber of hydraulic actuating cylinder, and the oil return of left chamber promotes the piston elongation, and load-transfer device is lax, thereby is convenient to the belt conveyer maintenance.
The beneficial effect of this patent is:
The structure collocation is reasonable, installation, easy to adjust, and applicability is strong;
Safe and reliable, ne-leakage vibrates little;
Classical high-low pressure hydraulic control system, energy-conserving and environment-protective, the device operating cost is low.
The above; Be merely the preferable specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technical personnel of being familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.
Claims (2)
1. a novel differential circuit hydraulic efficiency pressure system is characterized in that, said novel differential circuit hydraulic efficiency pressure system comprises engine installation, hydraulic control system and hydraulic actuating cylinder, and said engine installation is provided with electrical motor and Hydraulic Pump, and said hydraulic control system is provided with by pass valve.
2. novel differential circuit hydraulic efficiency pressure system according to claim 1 is characterized in that, said by pass valve connects chamber, the hydraulic actuating cylinder left and right sides, forms differential circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120388210 CN202279478U (en) | 2011-10-13 | 2011-10-13 | Novel hydraulic system of differential circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120388210 CN202279478U (en) | 2011-10-13 | 2011-10-13 | Novel hydraulic system of differential circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202279478U true CN202279478U (en) | 2012-06-20 |
Family
ID=46225655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120388210 Expired - Fee Related CN202279478U (en) | 2011-10-13 | 2011-10-13 | Novel hydraulic system of differential circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202279478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555204A (en) * | 2019-09-26 | 2021-03-26 | 南京宝地梅山产城发展有限公司 | Site belt hydraulic system with tail car lifting mechanism and control method |
-
2011
- 2011-10-13 CN CN 201120388210 patent/CN202279478U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555204A (en) * | 2019-09-26 | 2021-03-26 | 南京宝地梅山产城发展有限公司 | Site belt hydraulic system with tail car lifting mechanism and control method |
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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: 20120620 Termination date: 20181013 |