CN202763775U - Chain tightener - Google Patents
Chain tightener Download PDFInfo
- Publication number
- CN202763775U CN202763775U CN201220423981.7U CN201220423981U CN202763775U CN 202763775 U CN202763775 U CN 202763775U CN 201220423981 U CN201220423981 U CN 201220423981U CN 202763775 U CN202763775 U CN 202763775U
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- tooth
- cover
- group
- output gear
- limit
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Abstract
The utility model discloses a chain tightener convenient to hang, fast to assemble and safe and reliable in performance. The chain tightener comprises a rack, a gear sleeve and a force application mechanism, a drawing hook is arranged at one end of the gear sleeve, the rack is arranged inside the gear sleeve and is in sliding fit with the gear sleeve, a rack drawing hook is arranged at one end of the rack, output gears of the force application mechanism are meshed with the rack, the rack drawing hook is hinged with the rack, and the force application mechanism comprises a speed reducer and a hydraulic motor. Due to the fact that the rack drawing hook is hinged with the rack, a scratching board is easy to hang. The speed reducer, the rack and the gear sleeve can be separated from each other with a fixed bolt of a pressure plate screwed down, and the chain tightener is convenient to maintain and repair. In the force application mechanism, the speed reducer is provided with two output gears meshed with the rack at the same time, the chain tightener is stable in running, motive power is improved, and safety performance is greatly improved.
Description
Technical field
The utility model relates to a kind of extracting tool, particularly dismantles the device of slide fastener.
Background technology
Slide fastener is the chain that connects between each scraper plate in the underground scraper conveyor of colliery.Along with the variation of manufacturing schedule, the position of drag conveyor also will be regulated thereupon, at this moment, needs to increase or reduce scraper plate.No matter increase or reduce scraper plate, the chain that all needs to connect first scraper plate is taken apart, then increases chain or pulls down one section chain.Because chain is in tension at ordinary times, and is very inconvenient during dismounting, the moment during in the past mainly by manpower or crawl scrapper conveyor button becomes flexible to tear open chain, do not have the operator of experience to be difficult to grasp, and security incident can appear in misoperation.For this reason, the patent No. is that 200710139217.0 " chain tightener " discloses a kind of special-purpose chain tightener, has substantially solved above-mentioned existing problems.He mainly is comprised of tooth bar, tooth cover, force application apparatus and pull hook, and tooth bar is arranged in rack tube, and drag hook is contained in respectively on tooth bar and the rack tube, the rack tube bottom is provided with sleeve pipe, this sleeve pipe top and rack tube lower vertical are used to lead to, and force application apparatus is arranged in sleeve pipe, the tooth axle of force application apparatus and tooth bar engagement.But two pull hooks in this device are fixed form, can only strain two chain links and operate.Because scraper plate is steel body and vertical with chain, lateral dimension is larger, more is suitable for hooking, but above-mentioned chain tightener is difficult to be competent at.Lack deceleration device in the force application mechanism of above-mentioned chain tightener, the larger slide fastener of load is difficult to pulling.And the output gear in the force application mechanism is the monodentate structure, when material goes wrong or load when larger, the broken teeth situation easily occurs, causes security incident to occur.
Summary of the invention
The purpose of this utility model provides a kind of hooking convenience, assembles quick, the reliable chain tightener of performance safety.
The technical solution of the utility model is: comprise tooth bar, tooth cover and force application mechanism, tooth overlaps an end and is provided with pull hook, tooth bar is contained in the tooth cover and with the tooth cover and is slidingly matched, tooth bar one end has the tooth bar pull hook, the output gear of force application mechanism and tooth bar engagement, described tooth bar pull hook and tooth bar are hinged, and described force application mechanism comprises decelerator and hydraulic motor.
Described tooth cover top is provided with two semicircle openings, be bolted with two output gear covers on the housing of force application mechanism, this output gear cover Lower Half is provided with opening, this A/F is greater than the tooth bar width, but the width less than tooth cover external upper, two output gears of force application mechanism are positioned at the output gear cover, and the tooth cover is fixedly connected with the output gear cover, and make two output gears and tooth bar engagement.
The decelerator of described force application mechanism is contained in the casing that is made of housing and cover plate; Tooth group engagement in the two heel teeth groups and in the decelerator, hydraulic motor is connected with the axis of middle tooth group; One end of both sides axle lays respectively in the corresponding axis hole on the cover plate, and the other end lays respectively in the axis hole of corresponding output gear cover, and the two ends of axis are through respectively in the axis hole corresponding on housing and the cover plate; Middle tooth group is comprised of driving tooth and driven tooth group, and driving tooth and axis are structure as a whole, and the driven tooth group forms integrative-structure by the first tooth that varies in size and the second tooth, the driven tooth group be through on the axis and with the axis matched in clearance; Two heel teeth groups are same structure, tooth group both sides in the apportion, the heel teeth group is comprised of limit driving tooth group and limit driven tooth group, limit driving tooth group forms integrative-structure by two the first teeth that vary in size and the second tooth, limit driven tooth group forms integrative-structure by two the first tooth and output gears that vary in size, limit driving tooth group and limit driven tooth group all are through on the axle of limit, all cooperate with the limit shaft clearance; The first tooth engagement of driving tooth and limit driving tooth group, the second tooth of limit driving tooth group and the engagement of the first tooth of driven tooth group, the first tooth engagement of the second tooth of driven tooth group and limit driven tooth group, the output gear on the driven tooth group of limit and tooth bar engagement.
Described tooth cover is fixedly connected with the output gear cover, refers to that the output gear cover is arranged in two set semicircle openings of tooth cover top, set two the semicircle openings in the opening that output gear puts and tooth cover top over against, output gear overlaps and the tooth cover is spirally connected is integrated.
Described tooth cover is fixedly connected with the output gear cover, the below that is acupressure probe is provided with two semicircle openings, two semicircle openings on this pressing plate are corresponding one by one with two semicircle openings that tooth puts, pressing plate and tooth cover are spirally connected and are integrated, and the output gear cover is clamped in the circular open that the semicircle opening that put by pressing plate and tooth consists of, set two the semicircle openings in the opening that output gear puts and tooth cover top over against.
Owing to adopting the hinged mode of tooth bar pull hook and tooth bar in the utility model, make the movable model of tooth bar pull hook wider, more benefit the hooking scraper plate.Decelerator is combined as a whole with the tooth cover by two output gears cover in the utility model, only need back out set bolt, decelerator, tooth bar, tooth cover can be separated, and maintenance is very convenient.Force application mechanism comprises decelerator in the utility model, and decelerator has two output gears and tooth bar to mesh simultaneously, not only operates steadily, and power gets a promotion, and security performance improves greatly.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of Fig. 1;
Fig. 3 is the structural representation of decelerator in the utility model;
Fig. 4 is the STRUCTURE DECOMPOSITION schematic diagram of Fig. 3;
Fig. 5 is the schematic diagram of reducer gear engagement in the utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but does not consist of any restriction of the present utility model.
Illustrated in figures 1 and 2, the utility model comprises tooth bar 1, tooth cover 2 and force application mechanism.Tooth overlaps 2 one ends and is provided with pull hook 5, and tooth bar 1 is contained in the tooth cover 2 and with tooth cover 2 and is slidingly matched, and tooth bar 1 one ends are provided with tooth bar pull hook 4, and tooth bar pull hook 4 is articulated as one by hinge 3 with tooth bar 1.Two output gears of force application mechanism mesh with tooth bar 1 simultaneously.Tooth overlaps 2 tops and is provided with two semicircle openings, the below of pressing plate 6 also is provided with two with it identical semicircle openings, and after the installation, the semicircle opening on the semicircle opening on the pressing plate 6 and the tooth cover 2 is corresponding being abutted against one by one, form a circular hole, the diameter of this circular hole is identical with the external diameter of output cover tooth.Fig. 3 and shown in Figure 4, described force application mechanism comprise decelerator and hydraulic motor 8.Be bolted with two output gear covers 7 on the housing 9 of force application mechanism, this output gear overlaps 7 Lower Halves and is provided with opening, and this A/F is greater than tooth bar 1 width, but overlap the width of 2 upper surfaces less than tooth, after the installation, tooth bar 1 can be slided in opening, prevent that simultaneously tooth cover 2 from snapping in the opening.Two output gears of force application mechanism are positioned at output gear cover 7, and pressing plate 6 is spirally connected with tooth cover 2 and is integrated, and output gear cover 7 is clamped in the circular hole that is made of the semicircle opening on pressing plate 6 and the tooth cover 2.Shown in Figure 5, the decelerator of described force application mechanism is contained in the casing that is made of housing 9 and cover plate 10.Tooth group engagement in the two heel teeth groups and in the decelerator, hydraulic motor 8 is connected with the axis 11 of middle tooth group.One end of both sides axle 14 lays respectively in the corresponding axis hole on the cover plate 10, and the other end lays respectively in the axis hole on the corresponding output gear cover 7.The two ends of axis 11 are through respectively in the axis hole corresponding on housing 9 and the cover plate 10.Middle tooth group is comprised of driving tooth 13 and driven tooth group 12, and driving tooth 13 is structure as a whole with axis 11, and driven tooth group 12 forms integrative-structure by the first tooth that varies in size and the second tooth, driven tooth group 12 be through on the axis and with the axis matched in clearance.Two heel teeth groups are same structure, tooth group both sides in the apportion.The heel teeth group is comprised of limit driving tooth group 16 and limit driven tooth group 15.Limit driving tooth group 16 forms integrative-structure by two the first teeth that vary in size and the second tooth, limit driven tooth group 15 forms integrative-structure by two the first tooth and output gears that vary in size, limit driving tooth group 16 and limit driven tooth group 15 all are through on the limit axle 14, all with limit axle 14 matched in clearance.Driving tooth 13 meshes with the first tooth of limit driving tooth group 16, the second tooth of limit driving tooth group 16 and the engagement of the first tooth of driven tooth group 12, the first tooth engagement of the second tooth of driven tooth group 12 and limit driven tooth group 15, the output gear on the limit driven tooth group 15 and tooth bar 1 engagement.
During work, hydraulic motor 8 drives decelerator work, and two output gears of decelerator are with same rotational speed and moment of torsion and tooth bar 1 engagement, and band carry-over bar 1 slides in rack tube.Rack tube is fixed, and slip band carry-over bar pull hook 4 motions of tooth bar 1 finally make tooth bar pull hook 4 and the distance of pull hook 5 change, and reaches the purpose of straining or loosening chain, drag conveyor is increased or the minimizing scraper plate, to adapt to need of production.
Claims (5)
1. chain tightener, comprise tooth bar (1), tooth cover (2) and force application mechanism, tooth cover (2) one ends are provided with pull hook (5), tooth bar (1) is contained in the tooth cover (2) and with tooth cover (2) and is slidingly matched, tooth bar (1) one end has tooth bar pull hook (4), the output gear of force application mechanism and tooth bar (1) engagement is characterized in that: described tooth bar pull hook (4) is hinged with tooth bar (1), and described force application mechanism comprises decelerator and hydraulic motor (8).
2. chain tightener according to claim 1, it is characterized in that: described tooth cover (2) top is provided with two semicircle openings, be bolted with two output gear covers (7) on the housing of force application mechanism (9), this output gear cover (7) Lower Half is provided with opening, this A/F is greater than tooth bar (1) width, but the width less than tooth cover (2) external upper, two output gears of force application mechanism are positioned at output gear cover (7), tooth cover (2) is fixedly connected with output gear cover (7), and makes two output gears and tooth bar (1) engagement.
3. chain tightener according to claim 1 and 2 is characterized in that: the decelerator of described force application mechanism is contained in the casing that is made of housing (9) and cover plate (10); Tooth group engagement in the two heel teeth groups and in the decelerator, hydraulic motor (8) is connected with the axis (11) of middle tooth group; One end of both sides axle (14) lays respectively in the corresponding axis hole on the cover plate (10), and the other end lays respectively in the axis hole of corresponding output gear cover (7), and the two ends of axis (11) are through respectively in the axis hole of housing (9) and the upper correspondence of cover plate (10); Middle tooth group is comprised of driving tooth (13) and driven tooth group (12), driving tooth (13) is structure as a whole with axis (11), driven tooth group (12) forms integrative-structure by the first tooth that varies in size and the second tooth, driven tooth group (12) be through axis (11) upper and with axis (11) matched in clearance; Two heel teeth groups are same structure, tooth group both sides in the apportion, the heel teeth group is comprised of limit driving tooth group (16) and limit driven tooth group (15), limit driving tooth group (16) forms integrative-structure by two the first teeth that vary in size and the second tooth, limit driven tooth group (15) forms integrative-structure by two the first tooth and output gears that vary in size, limit driving tooth group (16) and limit driven tooth group (15) all are through on the limit axle (14), all with limit axle (14) matched in clearance; Driving tooth (13) meshes with the first tooth of limit driving tooth group (16), the first tooth engagement of the second tooth of limit driving tooth group (16) and driven tooth group (12), the first tooth engagement of the second tooth of driven tooth group (12) and limit driven tooth group (15), the output gear on the limit driven tooth group (15) and tooth bar (1) engagement.
4. chain tightener according to claim 2, it is characterized in that: described tooth cover (2) is fixedly connected with output gear cover (7), refer to that output gear cover (7) is arranged in two set semicircle openings of tooth cover (2) top, set two the semicircle openings in opening on the output gear cover (7) and tooth cover (2) top over against, output gear cover (7) is spirally connected with tooth cover (2) and is integrated.
5. chain tightener according to claim 2, it is characterized in that: described tooth cover (2) is fixedly connected with output gear cover (7), the below that is acupressure probe (6) is provided with two semicircle openings, two semicircle openings on this pressing plate (6) are corresponding one by one with two semicircle openings on the tooth cover (2), pressing plate (6) is spirally connected with tooth cover (2) and is integrated, and output gear cover (7) is clamped in the circular open that is made of the semicircle opening on pressing plate (6) and the tooth cover (2), above the opening on the output gear cover (7) and the tooth cover (2) set two semicircle openings over against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220423981.7U CN202763775U (en) | 2012-08-24 | 2012-08-24 | Chain tightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220423981.7U CN202763775U (en) | 2012-08-24 | 2012-08-24 | Chain tightener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202763775U true CN202763775U (en) | 2013-03-06 |
Family
ID=47770374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220423981.7U Expired - Lifetime CN202763775U (en) | 2012-08-24 | 2012-08-24 | Chain tightener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202763775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785215A (en) * | 2012-08-24 | 2012-11-21 | 长治市远路矿用设备有限责任公司 | Chain tightener |
| CN114590539A (en) * | 2022-05-09 | 2022-06-07 | 江苏鸿恩智能科技有限公司 | High-strength round chain tightener |
-
2012
- 2012-08-24 CN CN201220423981.7U patent/CN202763775U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785215A (en) * | 2012-08-24 | 2012-11-21 | 长治市远路矿用设备有限责任公司 | Chain tightener |
| CN114590539A (en) * | 2022-05-09 | 2022-06-07 | 江苏鸿恩智能科技有限公司 | High-strength round chain tightener |
| CN114590539B (en) * | 2022-05-09 | 2022-07-08 | 江苏鸿恩智能科技有限公司 | High-strength round chain tightener |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |