CN105059835A - Chain tension automatic adjusting device of scraper conveyer - Google Patents
Chain tension automatic adjusting device of scraper conveyer Download PDFInfo
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- CN105059835A CN105059835A CN201510418397.0A CN201510418397A CN105059835A CN 105059835 A CN105059835 A CN 105059835A CN 201510418397 A CN201510418397 A CN 201510418397A CN 105059835 A CN105059835 A CN 105059835A
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Abstract
A chain tension automatic adjusting device of a scraper conveyer comprises an adjusting hydraulic cylinder, a hydraulic stabilizing mechanism, a liquid inlet pipe connector, a liquid return pipe connector and a shutdown locking button. The adjusting hydraulic cylinder comprises a right cavity, a telescopic rod and a left cavity. The telescopic rod is connected with a chain wheel of the scraper conveyer. The chain wheel of the scraper conveyer is controlled to move leftwards and rightwards through stretching and retracting of the telescopic rod, so that a chain of the scraper conveyer is tensioned or loosened, and the tension of the chain is adjusted. The hydraulic stabilizing mechanism is connected with the right cavity of the adjusting hydraulic cylinder, the liquid inlet pipe connector and the liquid return pipe connector. Liquid is injected into or discharged from the right cavity through the liquid inlet pipe connector or the liquid return pipe connector, so that liquid pressure in the right cavity is kept in a set range, and accordingly the telescopic rod is controlled to stretch and retract. The chain tension automatic adjusting device can guarantee that the chain of the scraper conveyer always runs at optimal tension, the service life of the chain of the scraper conveyer is effectively prolonged, maintenance frequency is reduced, and maintenance strength is reduced. Besides, production efficiency of a fully-mechanized mining face is effectively improved.
Description
Technical field
The present invention relates to a kind of device for regulating chain tension of chain, especially a kind of scraper conveyer chain apparatus for automatically regulating tension.
Background technology
In underground coal mine fully-mechanized mining working normal productive process, due to the change of ocurrence of coal seam geologic condition, coalcutter driver coal cutting technology, pass the difference of transport plane operative employee operative technique, the impact of the factors such as the change of bending position passed by slat conveyer, the angle of slat conveyer heave and set and front and back bending angles is occurring to change always, and the tension force of scraper conveyer chain is also occurring to change always.The tension force of scraper conveyer chain constantly changes, and causes scraper conveyer chain steel fatigue aging, shortens the service life of chain greatly.And because the tension force of chain constantly changes, the running orbit of scraper conveyer chain and scraper plate also occurs to change, and then causes scraper plate hold-doun nut to loosen thereupon, slat conveyer head, aircraft tail shelf frid, groove strengthen along abrasion losies such as, pressuring chain plate and scraper plates.And, scraper conveyer chain overtension can increase slat conveyer load, scraper conveyer chain tension force is too small more may there is chain jamming and chain rupture accident, therefore, have impact on the time that slat conveyer normally runs, shorten the overall operation life-span of slat conveyer, increase the labour intensity etc. of service personnel.
For these reasons, coal mining enterprise's tailor scraper conveyer chain tension monitoring management system, slat conveyer service personnel carries out minimum tension monitoring once every day, and slat conveyer tension force is still only limitted to stationary state monitoring, tension force can only be only limitted in certain limit, still cannot dynamic monitoring and adjust to optimum tension in real time in whole production process, really cannot effectively solve scraper conveyer chain tension force and adjust problem in real time.
Summary of the invention
For solving current coal mining enterprise in fully-mechanized mining working production process, scraper conveyer chain tension force affects continuous change by various factors, cause that slat conveyer interruption of service is many, service life is short, working surface production efficiency is low, safeguard the technical matters that intensity is large, the invention provides a kind of scraper conveyer chain apparatus for automatically regulating tension.
The technical solution used in the present invention is as follows:
A kind of scraper conveyer chain apparatus for automatically regulating tension, comprises adjustment hydraulic actuating cylinder, stability hydraulic mechanism, feed tube interface and liquid back pipe interface.
Described adjustment hydraulic actuating cylinder comprises right cavity, expansion link and left cavity, described expansion link is connected with Chain Wheel of Flight Bar Conveyor, by Chain Wheel of Flight Bar Conveyor sway described in the extension and contraction control of described expansion link, realize scraper conveyer chain tensioning or lax, and then realize the adjustment of chain tension; Described stability hydraulic mechanism respectively with the described right cavity of described adjustment hydraulic actuating cylinder, described feed tube interface is connected with liquid back pipe interface, injected or discharge liquid to described right cavity by described feed tube interface or described liquid back pipe interface, to make hydraulic pressure in described right cavity remain in setting range, and then control the flexible of described expansion link.
In above-mentioned scraper conveyer chain apparatus for automatically regulating tension, described stability hydraulic mechanism comprises ftercompction by pass valve and decompression by pass valve, described ftercompction by pass valve is connected with described cavity and described feed tube interface respectively, and described decompression by pass valve is connected with described cavity and described liquid back pipe interface respectively; Described fluid infusion by pass valve pre-sets a fluid infusion hydraulic pressure threshold value M, described decompression by pass valve preset value one decompression hydraulic pressure threshold value N, N > M; Time in working order, when the hydraulic pressure in described right cavity is less than M, described ftercompction by pass valve is opened, and liquid is injected in described right cavity by described feed tube interface through described ftercompction by pass valve, until when the hydraulic pressure in described right cavity reaches M again, described ftercompction by pass valve is closed; When the hydraulic pressure in described right cavity is greater than N, described decompression by pass valve is opened, and liquid is discharged by described liquid back pipe interface through described decompression by pass valve in described right cavity, until when the hydraulic pressure in described right cavity reaches N again, described decompression by pass valve is closed.Described scraper conveyer chain tension force realizes adjustment automatically.
In above-mentioned scraper conveyer chain apparatus for automatically regulating tension, described stability hydraulic mechanism is connected by the first pipeline with described right cavity, described pipeline is provided with the first 2/2-way hand valve, described right cavity is also connected with three-position four-way valve by by path, described by path is provided with the second 2/2-way hand valve.
In above-mentioned scraper conveyer chain apparatus for automatically regulating tension, the described left cavity of described adjustment hydraulic actuating cylinder is connected with described three-position four-way valve by the second pipeline; Described left cavity is connected with the 3rd 2/2-way hand valve, for being exhausted described left cavity by described second by path; When described first 2/2-way hand valve and described 3rd 2/2-way hand valve are opened, when described second 2/2-way hand valve cuts out, in described right cavity, hydraulic state is in automatic adjustment state, when described first 2/2-way hand valve and described 3rd 2/2-way hand valve are closed, when described second 2/2-way hand valve is opened, in described right cavity, hydraulic state is in manual adjustment state.
In above-mentioned scraper conveyer chain apparatus for automatically regulating tension, described first pipeline is also provided with compression indicator, for monitoring described right cavity internal pressure in described adjustment hydraulic actuating cylinder.
Above-mentioned scraper conveyer chain apparatus for automatically regulating tension also comprises scalable sprocket wheel aircraft tail shelf, and there is track lower end, for supporting fixing described adjustment hydraulic actuating cylinder, can together with described adjustment hydraulic actuating cylinder sway on the track.
In above-mentioned scraper conveyer chain apparatus for automatically regulating tension, described adjustment hydraulic actuating cylinder quantity is 2, is arranged in described Chain Wheel of Flight Bar Conveyor rear and front end respectively.
Technique scheme of the present invention has the following advantages compared to existing technology:
1. scraper conveyer chain apparatus for automatically regulating tension provided by the invention, owing to comprising adjustment hydraulic actuating cylinder and stability hydraulic mechanism, therefore, the present invention can carry out automatically adjustment in real time according to the real-time change of scraper conveyer chain tension force, Adjustment precision is high, and time saving and energy saving, guarantee that slat conveyer runs with optimum tension.Thus can effectively reduce slat conveyer frequency of maintenance, improve service life, improve fully-mechanized mining working production efficiency, reduce the maintenance intensity of workman simultaneously.
2. scraper conveyer chain apparatus for automatically regulating tension provided by the invention, because stability hydraulic mechanism comprises ftercompction by pass valve and decompression by pass valve, ftercompction by pass valve and the by pass valve that reduces pressure are respectively used to monitoring and solve scraper conveyer chain in real time relax and tensioning problem, therefore, the present invention, can realize the automatic adjustment to scraper conveyer chain tension force in the reasonable scope by adjusting fluid control in hydraulic actuating cylinder, and, control mechanism structure is simple, with low cost.
3. scraper conveyer chain apparatus for automatically regulating tension provided by the invention, owing to being provided with first, second pipeline and by path, and be separately installed with first, second, and third 2/2-way hand valve and control, therefore, the present invention can switch between adjustment scraper conveyer chain tension force and manual adjustment scraper conveyer chain tension force simply and easily automatically, in realization in scraper conveyer chain tension force self-align situation, can also take into account because the reasons such as maintenance need the manual requirement adjusted, make applicability of the present invention stronger, more reliably.
4. scraper conveyer chain apparatus for automatically regulating tension provided by the invention, owing to being provided with the second pipeline, and controlled by the 3rd 2/2-way hand valve, therefore, the present invention can not only by being connected by path with the three-position four-way valve on hydraulic support with the second pipeline respectively, the manual adjustment to scraper conveyer chain tension force is realized by the three-position four-way valve on operation hydraulic support, and can under automatically adjusting scraper conveyer chain situation, row's air-breathing is carried out to the left cavity of adjustment hydraulic actuating cylinder, effective raising adjusts the precision of scraper conveyer chain tension force automatically.
5. scraper conveyer chain apparatus for automatically regulating tension provided by the invention, owing to also comprising scalable sprocket wheel aircraft tail shelf, there is track lower end, for supporting fixed adjustment hydraulic actuating cylinder, and can together with adjustment hydraulic actuating cylinder sway in orbit, therefore, the present invention effectively can ensure the precision to scraper conveyer chain tension adjustment.
6. scraper conveyer chain apparatus for automatically regulating tension provided by the invention, because adjustment hydraulic actuating cylinder quantity is 2, be arranged in adjustment hydraulic actuating cylinder rear and front end respectively, therefore, the present invention can effectively ensure bias can not occur to during scraper conveyer chain adjustment tension force, thus affect Adjustment precision, and can ensure to produce enough application forces to Chain Wheel of Flight Bar Conveyor.
Accompanying drawing explanation
In order to make the content of invention be more likely to be clearly understood, below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is scraper conveyer chain apparatus for automatically regulating tension structural representation of the present invention.
Be labeled as in figure: 1-adjusts hydraulic actuating cylinder, 2-stability hydraulic mechanism, 3-feed tube interface, 4-liquid back pipe interface, 5-first 2/2-way hand valve, 6-second 2/2-way hand valve, 7-the 3rd 2/2-way hand valve, 8-three-position four-way valve, 9-compression indicator, the scalable sprocket wheel aircraft tail shelf of 10-, 11-Chain Wheel of Flight Bar Conveyor, 12-first pipeline, 13-by path, 14-second pipeline, 15-second by path, the right cavity of 101-, 102-expansion link, the left cavity of 103-, 201-ftercompction by pass valve, 202-reduces pressure by pass valve.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Fig. 1 is the preferred embodiment of scraper conveyer chain apparatus for automatically regulating tension of the present invention.
Described scraper conveyer chain apparatus for automatically regulating tension, comprises adjustment hydraulic actuating cylinder 1, stability hydraulic mechanism 2, feed tube interface 3 and liquid back pipe interface 4.
Described adjustment hydraulic actuating cylinder 1 comprises right cavity 101, expansion link 102 and left cavity 103, described expansion link 102 is connected with Chain Wheel of Flight Bar Conveyor 10, by Chain Wheel of Flight Bar Conveyor 10 described in the extension and contraction control of described expansion link 102 in moving machine tailstock 11 sway, realize scraper conveyer chain tensioning or lax, and then realize the adjustment of chain tension.
Described stability hydraulic mechanism 2 respectively with the described right cavity 101 of described adjustment hydraulic actuating cylinder 1, described feed tube interface 3 is connected with liquid back pipe interface 4, inject by described feed tube interface 3 or described liquid back pipe interface 4 to described right cavity 101 or discharge liquid, to make hydraulic pressure in described right cavity 101 remain in setting range, and then control the flexible of described expansion link 102.
In the present embodiment, described stability hydraulic mechanism 2 comprises ftercompction by pass valve 201 and decompression by pass valve 202, described ftercompction by pass valve 201 is connected with described cavity 101 and described feed tube interface 3 respectively, and described decompression by pass valve 202 is connected with described cavity 101 and described liquid back pipe interface 4 respectively; Described fluid infusion by pass valve 201 pre-sets a fluid infusion hydraulic pressure threshold value M, and described decompression by pass valve 202 pre-sets a decompression hydraulic pressure threshold value N, N > M.
Time in working order, when the hydraulic coupling in described right cavity 101 is less than M, described ftercompction by pass valve 201 is opened, liquid is injected in described right cavity 101 by described feed tube interface 3 through described ftercompction by pass valve 201, until when the hydraulic coupling in described right cavity 101 reaches M again, described ftercompction by pass valve 201 is closed.When the hydraulic coupling in described right cavity 101 is greater than N, described decompression by pass valve 202 is opened, liquid is discharged by described liquid back pipe interface 4 through described decompression by pass valve 202 in described right cavity 101, until when the hydraulic pressure in described right cavity 101 reaches N again, described decompression by pass valve 202 is closed.
In the present embodiment, described stability hydraulic mechanism 2 is connected by the first pipeline 12 with described right cavity 101, described pipeline is provided with the first 2/2-way hand valve 5, described right cavity 101 is also connected with three-position four-way valve 8 by by path 13, described by path 13 is provided with the second 2/2-way hand valve 6.
In the present embodiment, the described left cavity 103 of described adjustment hydraulic actuating cylinder 1 is connected with described three-position four-way valve 8 by the second pipeline 14; Described left cavity 103 is connected with the 3rd 2/2-way hand valve 7 by described second by path 16, for being exhausted described left cavity 103.
When described first 2/2-way hand valve 5 and described 3rd 2/2-way hand valve 7 are opened, when described second 2/2-way hand valve 6 cuts out, in described right cavity 101, hydraulic state is in automatic adjustment state, when described first 2/2-way hand valve 5 and described 3rd 2/2-way hand valve 7 are closed, when described second 2/2-way hand valve 6 is opened, in described right cavity 101, hydraulic state is in manual adjustment state.
In the present embodiment, described first pipeline 12 is also provided with compression indicator 9, for monitoring described right cavity 101 internal pressure in described adjustment hydraulic actuating cylinder 1.
In the present embodiment, described scraper conveyer chain apparatus for automatically regulating tension also comprises scalable sprocket wheel aircraft tail shelf 11, and there is track lower end, for supporting fixing described adjustment hydraulic actuating cylinder 1, can together with described adjustment hydraulic actuating cylinder 1 sway on the track.
In the present embodiment, described adjustment hydraulic actuating cylinder 1 quantity is 2, is arranged in described Chain Wheel of Flight Bar Conveyor 10 rear and front end respectively.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For the person of ordinary skill of the art, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among protection scope of the present invention.
Claims (7)
1. scraper conveyer chain apparatus for automatically regulating tension, is characterized in that: comprise adjustment hydraulic actuating cylinder (1), stability hydraulic mechanism (2), feed tube interface (3) and liquid back pipe interface (4);
Described adjustment hydraulic actuating cylinder (1) comprises right cavity (101), expansion link (102) and left cavity (103), described expansion link (102) is connected with Chain Wheel of Flight Bar Conveyor (10), by Chain Wheel of Flight Bar Conveyor (10) described in the extension and contraction control of described expansion link (102) in moving machine tailstock (11) sway, realize scraper conveyer chain tensioning or lax, and then realize the adjustment of chain tension;
Described stability hydraulic mechanism (2) respectively with the described right cavity (101) of described adjustment hydraulic actuating cylinder (1), described feed tube interface (3) is connected with liquid back pipe interface (4), injected or discharge liquid to described right cavity (101) by described feed tube interface (3) or described liquid back pipe interface (4), to make the interior hydraulic pressure of described right cavity (101) remain in setting range, and then control the flexible of described expansion link (102).
2. scraper conveyer chain apparatus for automatically regulating tension according to claim 1, it is characterized in that: described stability hydraulic mechanism (2) comprises ftercompction by pass valve (201) and decompression by pass valve (202), described ftercompction by pass valve (201) is connected with described cavity (101) and described feed tube interface (3) respectively, and described decompression by pass valve (202) is connected with described cavity (101) and described liquid back pipe interface (4) respectively;
Described fluid infusion by pass valve (201) pre-sets a fluid infusion hydraulic pressure threshold value M, and described decompression by pass valve (202) pre-sets a decompression hydraulic pressure threshold value N, N > M;
Time in working order, when the hydraulic coupling in described right cavity (101) is less than M, described ftercompction by pass valve (201) is opened, liquid is injected in described right cavity (101) by described feed tube interface (3) through described ftercompction by pass valve (201), until when the hydraulic coupling in described right cavity (101) reaches M again, described ftercompction by pass valve (201) is closed;
When the hydraulic coupling in described right cavity (101) is greater than N, described decompression by pass valve (202) is opened, liquid is discharged by described liquid back pipe interface (4) through described decompression by pass valve (202) in described right cavity (101), until when the hydraulic pressure in described right cavity (101) reaches N again, described decompression by pass valve (202) is closed.
3. according to the arbitrary described scraper conveyer chain apparatus for automatically regulating tension of claim 1-2, it is characterized in that: described stability hydraulic mechanism (2) is connected by the first pipeline (12) with described right cavity (101), described pipeline is provided with the first 2/2-way hand valve (5), described right cavity (101) is also connected with three-position four-way valve (8) by by path (13), described by path (13) is provided with the second 2/2-way hand valve (6).
4. scraper conveyer chain apparatus for automatically regulating tension according to claim 3, is characterized in that: the described left cavity (103) of described adjustment hydraulic actuating cylinder (1) is connected with described three-position four-way valve (8) by the second pipeline (14); Described left cavity (103) is connected with the 3rd 2/2-way hand valve (7) by described second by path (16), for being exhausted described left cavity (103);
When described first 2/2-way hand valve (5) and described 3rd 2/2-way hand valve (7) are opened, when described second 2/2-way hand valve (6) cuts out, the interior hydraulic state of described right cavity (101) is in automatic adjustment state, when described first 2/2-way hand valve (5) and described 3rd 2/2-way hand valve (7) are closed, when described second 2/2-way hand valve (6) is opened, the interior hydraulic state of described right cavity (101) is in manual adjustment state.
5. scraper conveyer chain apparatus for automatically regulating tension according to claim 3, it is characterized in that: described first pipeline (12) is also provided with compression indicator (9), for monitoring described right cavity (101) internal pressure in described adjustment hydraulic actuating cylinder (1).
6. according to the arbitrary described scraper conveyer chain apparatus for automatically regulating tension of claim 1-5, it is characterized in that: also comprise scalable sprocket wheel aircraft tail shelf (11), there is track lower end, for supporting fixing described adjustment hydraulic actuating cylinder (1), can together with described adjustment hydraulic actuating cylinder (1) sway on the track.
7., according to the arbitrary described scraper conveyer chain apparatus for automatically regulating tension of claim 1-6, it is characterized in that: described adjustment hydraulic actuating cylinder (1) quantity is 2, is arranged in described Chain Wheel of Flight Bar Conveyor (10) rear and front end respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418397.0A CN105059835A (en) | 2015-07-17 | 2015-07-17 | Chain tension automatic adjusting device of scraper conveyer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510418397.0A CN105059835A (en) | 2015-07-17 | 2015-07-17 | Chain tension automatic adjusting device of scraper conveyer |
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| CN105059835A true CN105059835A (en) | 2015-11-18 |
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| CN201510418397.0A Pending CN105059835A (en) | 2015-07-17 | 2015-07-17 | Chain tension automatic adjusting device of scraper conveyer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858086A (en) * | 2016-05-31 | 2016-08-17 | 山东科技大学 | Chain tension regulating device used for tail of scraper and application thereof |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20151118 |