CN204642959U - Hydraulic automatic tensioning device - Google Patents
Hydraulic automatic tensioning device Download PDFInfo
- Publication number
- CN204642959U CN204642959U CN201520278387.7U CN201520278387U CN204642959U CN 204642959 U CN204642959 U CN 204642959U CN 201520278387 U CN201520278387 U CN 201520278387U CN 204642959 U CN204642959 U CN 204642959U
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- CN
- China
- Prior art keywords
- valve
- change over
- tensioning device
- hand change
- adhesive tape
- 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 utility model relates to a kind of hydraulic automatic tensioning device, there is adhesive tape conveyor body and electric hoist, described adhesive tape conveyor body is provided with two pulleys, two pulley one end are connected with electric hoist by twisted wire, the two pulley other ends are connected by twisted wire and the simply connected pulley that alters course, the intermediate pulley of two pulleys is connected with oil cylinder, one end of oil cylinder is connected with hand change over valve, hand change over valve is connected with hydraulic oil pump, fine filter is provided with between hand change over valve and hydraulic oil pump, the hand change over valve other end is provided with hydraulically-controlled one-way valve, hydraulically-controlled one-way valve is connected with force lift, hydraulic oil pump is connected with fuel tank, the other end of oil cylinder is connected with solenoid directional control valve, and solenoid directional control valve is connected with the second by pass valve, and the second by pass valve is connected with fuel tank.The utility model structure is simple, improves overall performance, increases the service life, can not relax suddenly, starts steadily, little to adhesive tape damage, not easily occurs sideslip, skidding, increase work efficiency in operation.
Description
Technical field
The utility model relates to a kind of hydraulic automatic tensioning device.
Background technology
Travelling apron is also known as band conveyor, load-transfer device moves according to frictional transmission principle, be applicable to conveying bulk density and be less than 1.67/ ton/cubic meter, be easy to draw the powdery got, low chiseling property of the mill material of granular, little bulk and bagged material, as coal, rubble, sand, cement, chemical fertilizer, grain etc.Travelling apron can use within the scope of ambient temperature-20 DEG C to+40 DEG C, is sent temperature of charge to be less than 60 DEG C.Its captain and assembling form can require to determine according to user, and transmission can use electric drum, also can with the actuating device being with bogie.
The specificity analysis of travelling apron three kinds of states: when (1) starts, adhesive tape slack list relaxes suddenly, and adhesive tape can extend, this elongation must compensate, otherwise it is not steady to start pole, very large to adhesive tape damage; (2), when normally working, adhesive tape must keep enough tensile forces, otherwise easily sideslip, skidding in running; (3), when shutting down, contrary with startup, adhesive tape can shorten, and secondary shortening amount also needs to be compensated, otherwise adhesive tape is in overstretched state, and service life can reduce.
Utility model content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provides a kind of hydraulic automatic tensioning device.
The utility model solves the technical scheme that its technical matters adopts: a kind of hydraulic automatic tensioning device, there is adhesive tape conveyor body and electric hoist, described adhesive tape conveyor body is provided with two pulleys, two pulley one end are connected with electric hoist by twisted wire, the two pulley other ends are connected by twisted wire and the simply connected pulley that alters course, the intermediate pulley of two pulleys is connected with oil cylinder, one end of oil cylinder is connected with hand change over valve, hand change over valve is connected with hydraulic oil pump, fine filter is provided with between hand change over valve and hydraulic oil pump, the hand change over valve other end is provided with hydraulically-controlled one-way valve, hydraulically-controlled one-way valve is connected with force lift, hydraulic oil pump is connected with fuel tank, the other end of oil cylinder is connected with solenoid directional control valve, and solenoid directional control valve is connected with the second by pass valve, and the second by pass valve is connected with fuel tank.
Further, tightening device is provided with between described adhesive tape conveyor body and two pulleys.
Further, coarse filter is provided with between described hydraulic oil pump and fuel tank.
Further, described hand change over valve is in parallel with between fine filter is provided with the first by pass valve, and the first by pass valve is connected with fuel tank.
Further, accumulator, shutoff valve and the 3rd pressure relay is provided with between described oil cylinder and solenoid directional control valve successively.
Further, the described 3rd pipeline between pressure relay with solenoid directional control valve is provided with pipeline and is connected with the pipeline between force lift with hydraulically-controlled one-way valve.
Further, the second by pass valve and by pass valve is provided with successively between described solenoid directional control valve and the second by pass valve.
The beneficial effects of the utility model are: the utility model structure is simple, improve overall performance, increase the service life, can not relax suddenly, start steadily, little to adhesive tape damage, not easily occur sideslip, skidding, increase work efficiency in operation.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
1. adhesive tape conveyor body, 2. electric hoists in figure, 3. liang connection pulley, 4. simply connected changed course pulley, 5. oil cylinder, 6. hand change over valve, 7. hydraulic oil pump, 8. fine filter, 9. fuel tank, 10. solenoid directional control valve, 11. second by pass valves, 12. hydraulically-controlled one-way valves, 13. force lifts, 14. tightening devices, 15. coarse filters, 16. first by pass valves, 18. accumulators, 19. shutoff valves, 20. the 3rd pressure relayes, 21. second by pass valves, 22. by pass valves.
Detailed description of the invention
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
A kind of hydraulic automatic tensioning device as shown in Figure 1, there is adhesive tape conveyor body 1 and electric hoist 2, adhesive tape conveyor body 1 is provided with two pulleys 3, two pulley 3 one end are connected with electric hoist 2 by twisted wire, two pulley 3 other ends are connected by twisted wire and the simply connected pulley 4 that alters course, the intermediate pulley of two pulleys 3 is connected with oil cylinder 5, one end of oil cylinder 5 is connected with hand change over valve 6, hand change over valve 6 is connected with hydraulic oil pump 7, fine filter 8 is provided with between hand change over valve 6 and hydraulic oil pump 7, hand change over valve 6 other end is provided with hydraulically-controlled one-way valve 12, hydraulically-controlled one-way valve 12 is connected with force lift 13, hydraulic oil pump 7 is connected with fuel tank 9, the other end of oil cylinder 5 is connected with solenoid directional control valve 10, solenoid directional control valve 10 is connected with the second by pass valve 11, second by pass valve 11 is connected with fuel tank 9, tightening device 14 is provided with between adhesive tape conveyor body 1 and two pulleys 3, coarse filter 15 is provided with between hydraulic oil pump 7 and fuel tank 9, in parallelly between hand change over valve 6 with fine filter 8 be provided with the first by pass valve 16, first by pass valve 17 is connected with fuel tank 9, accumulator 18 is provided with successively between oil cylinder 5 and solenoid directional control valve 10, shutoff valve 19 and the 3rd pressure relay 20, 3rd pressure relay 20 is provided with pipeline with the pipeline between solenoid directional control valve 10 and is connected with the pipeline between force lift 13 with hydraulically-controlled one-way valve 12, the second by pass valve 21 and by pass valve 22 is provided with successively between solenoid directional control valve 10 and the second by pass valve 11.
Above-mentioned embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (7)
1. a hydraulic automatic tensioning device, there is adhesive tape conveyor body (1) and electric hoist (2), it is characterized in that: described adhesive tape conveyor body (1) is provided with two pulleys (3), two pulleys (3) one end is connected with electric hoist (2) by twisted wire, two pulleys (3) other end is connected by twisted wire and the simply connected pulley (4) that alters course, the intermediate pulley of two pulleys (3) is connected with oil cylinder (5), one end of oil cylinder (5) is connected with hand change over valve (6), hand change over valve (6) is connected with hydraulic oil pump (7), fine filter (8) is provided with between hand change over valve (6) and hydraulic oil pump (7), hand change over valve (6) other end is provided with hydraulically-controlled one-way valve (12), hydraulically-controlled one-way valve (12) is connected with force lift (13), hydraulic oil pump (7) is connected with fuel tank (9), the other end of oil cylinder (5) is connected with solenoid directional control valve (10), and solenoid directional control valve (10) is connected with the second by pass valve (11), and the second by pass valve (11) is connected with fuel tank (9).
2. hydraulic automatic tensioning device according to claim 1, is characterized in that: be provided with tightening device (14) between described adhesive tape conveyor body (1) and two pulleys (3).
3. hydraulic automatic tensioning device according to claim 1, is characterized in that: be provided with coarse filter (15) between described hydraulic oil pump (7) and fuel tank (9).
4. hydraulic automatic tensioning device according to claim 1, it is characterized in that: described hand change over valve (6) is in parallel with between fine filter (8) is provided with the first by pass valve (16), and the first by pass valve (17) is connected with fuel tank (9).
5. hydraulic automatic tensioning device according to claim 1, is characterized in that: be provided with accumulator (18), shutoff valve (19) and the 3rd pressure relay (20) between described oil cylinder (5) and solenoid directional control valve (10) successively.
6. hydraulic automatic tensioning device according to claim 5, is characterized in that: the 3rd described pressure relay (20) is provided with pipeline with the pipeline between solenoid directional control valve (10) and is connected with the pipeline between force lift (13) with hydraulically-controlled one-way valve (12).
7. hydraulic automatic tensioning device according to claim 1, is characterized in that: be provided with the second by pass valve (21) and by pass valve (22) between described solenoid directional control valve (10) and the second by pass valve (11) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278387.7U CN204642959U (en) | 2015-04-30 | 2015-04-30 | Hydraulic automatic tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278387.7U CN204642959U (en) | 2015-04-30 | 2015-04-30 | Hydraulic automatic tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204642959U true CN204642959U (en) | 2015-09-16 |
Family
ID=54095727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520278387.7U Expired - Fee Related CN204642959U (en) | 2015-04-30 | 2015-04-30 | Hydraulic automatic tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204642959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550459A (en) * | 2020-05-20 | 2020-08-18 | 宁波华美达机械制造有限公司 | Safety protection oil circuit system of servo pump |
| CN111661569A (en) * | 2016-04-15 | 2020-09-15 | 久益环球地下采矿有限责任公司 | System and method for tensioning a conveyor in a mining system |
-
2015
- 2015-04-30 CN CN201520278387.7U patent/CN204642959U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661569A (en) * | 2016-04-15 | 2020-09-15 | 久益环球地下采矿有限责任公司 | System and method for tensioning a conveyor in a mining system |
| CN111550459A (en) * | 2020-05-20 | 2020-08-18 | 宁波华美达机械制造有限公司 | Safety protection oil circuit system of servo pump |
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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: 20150916 Termination date: 20160430 |