CN102249069B - Hydraulic chain tightening device of scraper conveyor and hoisting mechanism thereof - Google Patents
Hydraulic chain tightening device of scraper conveyor and hoisting mechanism thereof Download PDFInfo
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- CN102249069B CN102249069B CN 201110105937 CN201110105937A CN102249069B CN 102249069 B CN102249069 B CN 102249069B CN 201110105937 CN201110105937 CN 201110105937 CN 201110105937 A CN201110105937 A CN 201110105937A CN 102249069 B CN102249069 B CN 102249069B
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- scraper conveyor
- hydraulic chain
- tensioning device
- chain tensioning
- rhombus frame
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Abstract
The invention relates to the technical field of scraper conveyors, and in particular discloses a hydraulic chain tightening device hoisting mechanism of scraper conveyors. The hydraulic chain tightening device hoisting mechanism of the scraper conveyors comprises a two-way screw, a diamond-shaped frame, a left handed nut and a right handed nut. The left handed nut and the right handed nut are respectively in threaded connection with a left screw thread and a right screw thread of the two-way screw; the left hinge point and the right hinge point of the diamond-shaped frame are respectively connected to the left handed nut and the right handed nut; and the upper hinge point and the lower hinge point of the diamond-shaped frame are respectively connected to a rotary rack and a rack mounting seat of the hydraulic chain tightening device of scraper conveyors. The invention further relates to a hydraulic chain tightening device of scraper conveyors having the hydraulic chain tightening device hoisting mechanism of the scraper conveyors.
Description
Technical field
The present invention relates to the slat conveyer technical field, relate in particular to a kind of hydraulic chain tensioning device of scraper conveyor lifting mechanism.The invention still further relates to a kind of hydraulic chain tensioning device of scraper conveyor with above-mentioned hydraulic chain tensioning device of scraper conveyor lifting mechanism.
Background technology
Slat conveyer is a kind of with scraper chain traction, the conveyer of transferring bulk cargo in groove.In current coal-face, not only being used for of slat conveyer transported coal and material, or the orbit of coalcutter, and therefore, slat conveyer has become indispensable major equipment in the modernized coal winning technology.
Slat conveyer adopts hydraulic chain tensioning device of scraper conveyor to carry out tight chain operation usually, and please referring to Fig. 1-Fig. 4, Fig. 1 is the structural representation of a kind of transmission device of typical slat conveyer in the prior art; Fig. 2 is the structural representation of Fig. 1 middle scraper conveyer chain hydraulic chain tightener; Fig. 3 is the structural representation of Fig. 2 middle scraper conveyer chain hydraulic chain tightener when being in the rise state; Fig. 4 is the structural representation of Fig. 2 middle scraper conveyer chain hydraulic chain tightener when being in full state.
As shown in Figure 1, the driving device of slat conveyer comprises retarder 26, drive motor 27, be connected by friction limit square device 29, tray joint shaft 28 etc. between the power intake of the clutch end of drive motor 27 and retarder 26, when slat conveyer is in nominal situation, drive retarder 26 by drive motor 27 and provide power for chain-wheel mechanism, when slat conveyer need to carry out tight chain operation, drive motor 27 quit work, and drove retarder 26 by hydraulic chain tensioning device of scraper conveyor.
Hydraulic chain tensioning device of scraper conveyor comprises the HM Hydraulic Motor that is fixed on the rotary rack, the clutch end of HM Hydraulic Motor is provided with gear 21, be equipped with on the friction limit square device 29 for gear 21 gears in mesh dishes 22, one end and the frame mount pad of rotary rack are hinged, the other end of rotary rack is provided with the hydraulic chain tensioning device of scraper conveyor lifting mechanism, this hydraulic chain tensioning device of scraper conveyor lifting mechanism can drive rotary rack and move at vertical direction, so that gear 21 meshes with toothed disc 22 or breaks away from.
As shown in Figure 2, the hydraulic chain tensioning device of scraper conveyor lifting mechanism comprises thread rod 30, transverse slat 33, indication pin 31, latch 32, transverse slat 33 and rotary rack fixed-link, one end and the frame mount pad of thread rod 30 are fixed, the other end is connected with transverse slat 33 by the nut that is positioned at transverse slat 33 belows, and an end and the frame mount pad of indication pin 31 are fixed, another degree and transverse slat 33 sockets, indication pin 31 is provided with jack, is provided with latch 32 in the jack.
When hydraulic chain tensioning device of scraper conveyor is in the rise state, as shown in Figure 3, transverse slat 33 is positioned at the top of latch 32, in the time of need to carrying out tight chain operation to slat conveyer, take out latch 32, rotation thread rod 30 is fallen hydraulic chain tensioning device of scraper conveyor, so that gear 21 and toothed disc 22 engagements, it is spacing to insert latch 32, and transverse slat 33 is positioned at the below of latch 32, by HM Hydraulic Motor driven at low speed retarder 26; After the tight end of chain (EOC), take out latch 32, contrarotation thread rod 30 rises hydraulic chain tensioning device of scraper conveyor, so that gear 21 breaks away from toothed disc 22, it is spacing to insert latch 32, and this moment, transverse slat 33 was positioned at the top of latch 32.
The hydraulic chain tensioning device of scraper conveyor lifting mechanism of this structure, whole lifting process all are to realize that by adjusting thread rod 30 operational space of rotation thread rod 30 is less, inconvenient operation, and regulated efficiency is low.
Therefore, how to develop a kind of hydraulic chain tensioning device of scraper conveyor lifting mechanism that can adjust in higher efficiency the hydraulic chain tensioning device of scraper conveyor lifting, become the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
First purpose of the present invention provides a kind of hydraulic chain tensioning device of scraper conveyor lifting mechanism, and this hydraulic chain tensioning device of scraper conveyor lifting mechanism can be adjusted the lifting of hydraulic chain tensioning device of scraper conveyor in higher efficiency.Second purpose of the present invention provides a kind of hydraulic chain tensioning device of scraper conveyor with above-mentioned hydraulic chain tensioning device of scraper conveyor lifting mechanism.
In order to realize above-mentioned first purpose, the invention provides a kind of hydraulic chain tensioning device of scraper conveyor lifting mechanism, comprise reverse-flighted screw, rhombus frame, left-handed nut, right handed unt, described left-handed nut, described right handed unt form and are threaded with left side screw thread, the right side screw thread of described reverse-flighted screw respectively; Left hinge, the right hinge of described rhombus frame are connected with described left-handed nut, described right handed unt respectively, and the upper hinge of described rhombus frame, lower hinge are connected with rotary rack, the frame mount pad of hydraulic chain tensioning device of scraper conveyor respectively.
Preferably, described rhombus frame comprises the first rhombus frame, the second rhombus frame, and described the first rhombus frame, described the second rhombus frame are located at respectively described left-handed nut, described right handed unt's both sides.
Preferably, described left-handed nut side is provided with left projecting shaft, and the left hinge of this left projecting shaft and described rhombus frame is hinged, and described right handed unt's side is provided with right projecting shaft, and the right hinge of this right projecting shaft and described rhombus frame is hinged.
Preferably, also comprise position-limited lever, an end of this position-limited lever and described left projecting shaft or right projecting shaft are hinged, and the other end of described position-limited lever is provided with and is no less than one the draw-in groove that is used for forming with described right projecting shaft or described left projecting shaft clamping.
Preferably, the section of the external side end of described reverse-flighted screw is rectangular cross section.
Preferably, the ridge of described left side screw thread, described right side screw thread all is trapezoidal.
Preferably, the upper hinge place of described rhombus frame is provided with upper bracket, and described rhombus frame is connected with described rotary rack by described upper bracket.
Preferably, the lower hinge place of described rhombus frame is provided with undersetting, and described rhombus frame is connected with described frame mount pad by described undersetting.
Hydraulic chain tensioning device of scraper conveyor lifting mechanism provided by the invention comprises reverse-flighted screw, rhombus frame, left-handed nut, right handed unt, the both sides of reverse-flighted screw are respectively equipped with left side screw thread, right side screw thread, and described left-handed nut, described right handed unt form and are threaded with described left side screw thread, described right side screw thread respectively; Left hinge, the right hinge of rhombus frame are connected with described left-handed nut, described right handed unt respectively, and the upper hinge of rhombus frame, lower hinge are connected with rotary rack, the frame mount pad of hydraulic chain tensioning device of scraper conveyor respectively.
The hydraulic chain tensioning device of scraper conveyor lifting mechanism of this structure, when carrying out tight chain, the left-hand revolution reverse-flighted screw, the rhombus frame vertically shrinks, make rotary rack around with the jointed shaft of frame mount pad centered by move downward, the gear of hydraulic chain tensioning device of scraper conveyor reaches the position with the engagement of the toothed disc of driving device, namely finish the step-down operation of rotary rack, the HM Hydraulic Motor of hydraulic chain tensioning device of scraper conveyor can drive the retarder slow running by the engagement of gear and toothed disc, can carry out tight chain action; Behind the tight chain, up time rotation reverse-flighted screw, the rhombus frame vertically extends, make rotary rack around with the jointed shaft of frame mount pad centered by upward movement, the gear of hydraulic chain tensioning device of scraper conveyor and the toothed disc of driving device break away from, the upper lift operations of hydraulic chain tensioning device of scraper conveyor.
The hydraulic chain tensioning device of scraper conveyor lifting mechanism of this structure, adopt the screw mechanism principle to adjust the lifting of hydraulic chain tensioning device of scraper conveyor, simple in structure, make easy, lifting is accurate, stable working, larger to the operational space of reverse-flighted screw, the rotation reverse-flighted screw is comparatively convenient, and regulated efficiency is higher.
In order to realize above-mentioned second purpose, the present invention also provides a kind of hydraulic chain tensioning device of scraper conveyor, comprise above-mentioned hydraulic chain tensioning device of scraper conveyor lifting mechanism, the upper hinge of the rhombus frame of this hydraulic chain tensioning device of scraper conveyor lifting mechanism, lower hinge are connected with rotary rack, frame mount pad respectively, because above-mentioned hydraulic chain tensioning device of scraper conveyor lifting mechanism has above-mentioned technique effect, the hydraulic chain tensioning device of scraper conveyor with this hydraulic chain tensioning device of scraper conveyor lifting mechanism also should possess corresponding technique effect.
Description of drawings
Fig. 1 is the structural representation of a kind of transmission device of typical slat conveyer in the prior art;
Fig. 2 is the structural representation of Fig. 1 middle scraper conveyer chain hydraulic chain tightener;
Fig. 3 is the structural representation of Fig. 2 middle scraper conveyer chain hydraulic chain tightener when being in the rise state;
Fig. 4 is the structural representation of Fig. 2 middle scraper conveyer chain hydraulic chain tightener when being in full state;
Fig. 5 is the perspective view of hydraulic chain tensioning device of scraper conveyor lifting mechanism provided by the present invention;
Fig. 6 is the main TV structure scheme drawing of Fig. 5 middle scraper conveyer chain hydraulic chain tightener lifting mechanism;
Fig. 7 is the structural representation of hydraulic chain tensioning device of scraper conveyor when being in full state;
Fig. 8 is the structural representation of hydraulic chain tensioning device of scraper conveyor when being in the rise state;
Fig. 9 is the structural representation of reverse-flighted screw among Fig. 6;
Figure 10 be among Fig. 9 P to view;
Figure 11 is the structure for amplifying scheme drawing at I place among Fig. 9;
Figure 12 is the structural representation of left-handed nut among Fig. 6;
Figure 13 is the structural representation of right handed unt among Fig. 6;
Figure 14 is the structural representation of position-limited lever among Fig. 6.
Wherein, among Fig. 1-Figure 14:
Reverse-flighted screw 1, left-handed nut 2, pipe link 3, upper bracket 4-1, undersetting 4-2, bearing pin 5, the right handed unt 6, pad 7, spring cotter 8, jointed shaft 9, rotary rack 10, left projecting shaft 11, bolt and nut 12, frame mount pad 13, left side screw thread 14, the shaft shoulder 15, rectangular cross section 16, right side screw thread 17, right projecting shaft 18, angle of thread 19, rhombus frame 20, gear 21, toothed disc 22, position-limited lever 23, draw-in groove 24, rotating hole 25, retarder 26, drive motor 27, tray joint shaft 28, friction limit square device 29, thread rod 30, indication pin 31, latch 32, transverse slat 33.
The specific embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please referring to Fig. 5, Fig. 6, Fig. 5 is the perspective view of hydraulic chain tensioning device of scraper conveyor lifting mechanism provided by the present invention; Fig. 6 is the main TV structure scheme drawing of Fig. 5 middle scraper conveyer chain hydraulic chain tightener lifting mechanism.
Such as Fig. 5, shown in Figure 6, hydraulic chain tensioning device of scraper conveyor lifting mechanism provided by the invention comprises reverse-flighted screw 1, rhombus frame 20, left-handed nut 2, right handed unt 6, the both sides of reverse-flighted screw 1 are respectively equipped with left side screw thread 14, right side screw thread 17, and described left-handed nut 2, described right handed unt 6 form and are threaded with described left side screw thread 14, described right side screw thread 17 respectively; The left hinge of rhombus frame 20, right hinge are connected with described left-handed nut 2, described right handed unt 6 respectively, and the upper hinge of rhombus frame 20, lower hinge are connected with rotary rack 10, the frame mount pad 13 of hydraulic chain tensioning device of scraper conveyor respectively.
The hydraulic chain tensioning device of scraper conveyor lifting mechanism of this structure, as shown in Figure 7, when carrying out tight chain, left-hand revolution reverse-flighted screw 1, rhombus frame 20 vertically shrinks, make rotary rack 10 around with the jointed shaft 9 of frame mount pad 13 centered by move downward, the gear 21 of hydraulic chain tensioning device of scraper conveyor reaches the position with toothed disc 22 engagement of driving device, namely finish the step-down operation of hydraulic chain tensioning device of scraper conveyor, the HM Hydraulic Motor of hydraulic chain tensioning device of scraper conveyor can by the engagement driving retarder slow running of gear 21 with toothed disc 22, can be carried out tight chain action; As shown in Figure 8, behind the tight chain, up time rotation reverse-flighted screw 1, rhombus frame 20 vertically extends, make rotary rack 10 around with the jointed shaft 9 of frame mount pad 13 centered by upward movement, the gear 21 of hydraulic chain tensioning device of scraper conveyor breaks away from the toothed disc of driving device 22, finishes the upper lift operations of hydraulic chain tensioning device of scraper conveyor.
The hydraulic chain tensioning device of scraper conveyor lifting mechanism of this structure, adopt the screw mechanism principle to adjust the lifting of hydraulic chain tensioning device of scraper conveyor, simple in structure, make easy, lifting is accurate, stable working, larger to the operational space of reverse-flighted screw 1, rotation reverse-flighted screw 1 is comparatively convenient, and regulated efficiency is higher.
In the concrete scheme, rhombus frame 20 can comprise the first rhombus frame, the second rhombus frame, the first rhombus frame, the second rhombus frame are symmetrically set in left-handed nut 2, right handed unt's 6 both sides, this structure can be so that the more reasonable stress of rhombus frame 20, and hydraulic chain tensioning device of scraper conveyor is worked more steady in lifting process.
In the concrete scheme, the first rhombus frame can be by four pipe links, 3 hinged forming, and adjacent two pipe links 3 can be hinged by bearing pin 5, and same, the second rhombus frame also can be by four pipe links, 3 hinged forming.
In the preferred scheme, be connected with rhombus frame 20 for the ease of left-handed nut 2, right handed unt 6, as shown in figure 12, the side of left-handed nut 2 is provided with left projecting shaft 11, left projecting shaft 11 is hinged with the left hinge of rhombus frame 20, the left projecting shaft 11 of left-handed nut 2 both sides can be hinged with the left hinge of the first rhombus frame 20, the second rhombus frame 20 respectively, and in the scheme, pad 7 can be passed through in the end of left projecting shaft 11, spring cotter 8 is fixing more specifically; As shown in figure 13, right handed unt 6 side is provided with right projecting shaft 18, right projecting shaft 18 is hinged with the right hinge of rhombus frame 20, the right projecting shaft 18 of right handed unt 6 both sides can be hinged with the right hinge of the first rhombus frame 20, the second rhombus frame 20 respectively, in the scheme, pad 7 can be passed through in the end of right projecting shaft 18, spring cotter 8 is fixing more specifically.
In the concrete scheme, such as Fig. 9-shown in Figure 11, the centre of reverse-flighted screw 1 is provided with the shaft shoulder 15, the left side of reverse-flighted screw 1 is provided with left side screw thread 14, the right side is provided with right side screw thread 17, in the preferred version, the ridge of left side screw thread 14, right side screw thread 17 all is trapezoidal, the reverse-flighted screw 1 that the left side screw thread 14 of this structure, right side screw thread 17 make has auto-lock function, in the more excellent scheme, the angle of thread 19 of left side screw thread 14, right side screw thread 17 is approximately 30 degree, and the reverse-flighted screw 1 of this structure has better self-locking effect.
In the preferred scheme, the section of the external side end of reverse-flighted screw 1 is rectangular cross section 16, the reverse-flighted screw 1 of this structure, can be convenient to adopt multiple types of tools turn screw rod, so that the rotation of reverse-flighted screw 1 is comparatively convenient, in the more excellent scheme, the section of the external side end of reverse-flighted screw 1 can adopt square cross-section, and the rotation of the reverse-flighted screw 1 that can be is more convenient.
In the preferred version, also comprise position-limited lever 23, as shown in figure 14, one end of position-limited lever 23 is hinged with described left projecting shaft 11 or right projecting shaft 18 by rotating hole 25, and the other end of described position-limited lever 23 is provided with and is no less than one the draw-in groove 24 that is used for forming with described right projecting shaft 18 or left projecting shaft 11 clamping.Before carrying out tight chain, lift position-limited lever 23, remove the locking of 23 pairs of rhombus framves 20 of position-limited lever; Finish the upper lift operations of hydraulic chain tensioning device of scraper conveyor, the draw-in groove 24 of position-limited lever 23 is stuck in described left projecting shaft 11 or projecting shaft is arranged, can be with 20 lockings of rhombus frame.
In the concrete scheme, the upper hinge place of described rhombus frame 20 is provided with upper bracket 4-1, described rhombus frame 20 is connected with described rotary rack 10 by described upper bracket 4-1, and in the scheme, upper bracket 4-1 can be captiveed joint with the transverse slat 33 of rotary rack 10 by bolt and nut 12 more specifically.
In the concrete scheme, the lower hinge place of described rhombus frame 20 is provided with undersetting 4-2, and described rhombus frame 20 is connected with described frame mount pad 13 by described undersetting 4-2.
The present invention also provides a kind of hydraulic chain tensioning device of scraper conveyor, comprise above-mentioned hydraulic chain tensioning device of scraper conveyor lifting mechanism, the upper hinge of the rhombus frame 20 of this hydraulic chain tensioning device of scraper conveyor lifting mechanism, lower hinge are connected with rotary rack 10, frame mount pad 13 respectively, because above-mentioned hydraulic chain tensioning device of scraper conveyor lifting mechanism has above-mentioned technique effect, the hydraulic chain tensioning device of scraper conveyor with this hydraulic chain tensioning device of scraper conveyor lifting mechanism also should possess corresponding technique effect.
The above only is the description of the preferred implementation of invention; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. hydraulic chain tensioning device of scraper conveyor lifting mechanism, it is characterized in that, comprise reverse-flighted screw, rhombus frame, left-handed nut, right handed unt, described left-handed nut, described right handed unt form and are threaded with left side screw thread, the right side screw thread of described reverse-flighted screw respectively; Left hinge, the right hinge of described rhombus frame are connected with described left-handed nut, described right handed unt respectively, and the upper hinge of described rhombus frame, lower hinge are connected with rotary rack, the frame mount pad of hydraulic chain tensioning device of scraper conveyor respectively; Described left-handed nut side is provided with left projecting shaft, and the left hinge of this left projecting shaft and described rhombus frame is hinged, and described right handed unt's side is provided with right projecting shaft, and the right hinge of this right projecting shaft and described rhombus frame is hinged; Also comprise position-limited lever, an end of this position-limited lever and described left projecting shaft or right projecting shaft are hinged, and the other end of described position-limited lever is provided with and is no less than one the draw-in groove that is used for forming with described right projecting shaft or described left projecting shaft clamping.
2. hydraulic chain tensioning device of scraper conveyor lifting mechanism according to claim 1, it is characterized in that, described rhombus frame comprises the first rhombus frame, the second rhombus frame, and described the first rhombus frame, described the second rhombus frame are located at respectively described left-handed nut, described right handed unt's both sides.
3. hydraulic chain tensioning device of scraper conveyor lifting mechanism according to claim 1 is characterized in that, the section of the external side end of described reverse-flighted screw is rectangular cross section.
4. hydraulic chain tensioning device of scraper conveyor lifting mechanism according to claim 1 is characterized in that, the ridge of described left side screw thread, described right side screw thread all is trapezoidal.
5. hydraulic chain tensioning device of scraper conveyor lifting mechanism according to claim 1 is characterized in that, the upper hinge place of described rhombus frame is provided with upper bracket, and described rhombus frame is connected with described rotary rack by described upper bracket.
6. hydraulic chain tensioning device of scraper conveyor lifting mechanism according to claim 1 is characterized in that, the lower hinge place of described rhombus frame is provided with undersetting, and described rhombus frame is connected with described frame mount pad by described undersetting.
7. hydraulic chain tensioning device of scraper conveyor, it is characterized in that, comprise each described hydraulic chain tensioning device of scraper conveyor lifting mechanism of claim 1-6, the upper hinge of the rhombus frame of this hydraulic chain tensioning device of scraper conveyor lifting mechanism, lower hinge are connected with rotary rack, frame mount pad respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110105937 CN102249069B (en) | 2011-04-26 | 2011-04-26 | Hydraulic chain tightening device of scraper conveyor and hoisting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110105937 CN102249069B (en) | 2011-04-26 | 2011-04-26 | Hydraulic chain tightening device of scraper conveyor and hoisting mechanism thereof |
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| Publication Number | Publication Date |
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| CN102249069A CN102249069A (en) | 2011-11-23 |
| CN102249069B true CN102249069B (en) | 2013-01-02 |
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| CN 201110105937 Active CN102249069B (en) | 2011-04-26 | 2011-04-26 | Hydraulic chain tightening device of scraper conveyor and hoisting mechanism thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803402A (en) * | 2014-03-04 | 2014-05-21 | 广西玉柴机器股份有限公司 | Hoisting device and method for fan shaft part of engine |
| CN107215618B (en) * | 2017-05-17 | 2019-03-26 | 太原理工大学 | A kind of multifunctional scraper conveyor headstock and its control method |
| CN108238416A (en) * | 2018-03-06 | 2018-07-03 | 上海布拓传动系统设备有限公司 | The tight chain chain tightener of open hydraulic |
| CN109237071A (en) * | 2018-10-03 | 2019-01-18 | 盐城欧润石化设备制造有限公司 | A kind of spiral airbag valve |
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| CN1117940A (en) * | 1994-05-10 | 1996-03-06 | 理研化机工业株式会社 | Jack |
| CN2220461Y (en) * | 1995-04-21 | 1996-02-21 | 田稼 | Quick lifting jack |
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Effective date of registration: 20160812 Address after: 413000 Yiyang high tech Zone in the eastern part of the New District of integrated services building, Room 502, Hunan Patentee after: Yiyang science and Technology Achievement Transformation Service Center Patentee after: Sany Heavy Integrated Coal Mining Equipment Co.,Ltd. Address before: 110027 No. 16 street, development road, Shenyang economic and Technological Development Zone, Liaoning Patentee before: Sany Heavy Integrated Coal Mining Equipment Co.,Ltd. |