CN211168590U - Chain tightening device of scraper conveyor - Google Patents
Chain tightening device of scraper conveyor Download PDFInfo
- Publication number
- CN211168590U CN211168590U CN201922210499.XU CN201922210499U CN211168590U CN 211168590 U CN211168590 U CN 211168590U CN 201922210499 U CN201922210499 U CN 201922210499U CN 211168590 U CN211168590 U CN 211168590U
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- CN
- China
- Prior art keywords
- support
- thread section
- scraper conveyor
- chain
- rod
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- Expired - Fee Related
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Abstract
The utility model relates to a chain tightening device of scraper conveyor, including horizontal support, the lower part at support both ends is equipped with longitudinal spout, and support upper portion is equipped with horizontal screw rod, and the screw rod is equipped with forward thread section and reverse thread section, and the forward thread section is equipped with the slider with reverse thread section, and the both sides of slider are articulated to have a support arm, and the support arm of two sliders with one side is articulated to same drag link, the both ends of drag link are equipped with the couple; the screw is connected with a hydraulic motor. The chain tightening device of the scheme adopts the opening angle of the screw rod driving support arm to control the chain tightening degree, and is simple, convenient and reliable to operate.
Description
Technical Field
The utility model relates to a scraper conveyor's tight chain device belongs to coal mining equipment technical field.
Background
The scraper conveyor is a common device for underground coal mine excavation, and the device has extremely high use efficiency. In the colliery in the working face in the pit, the used scraper chain of scraper conveyor uses after a period, and the chain will be because of appearing tensile deformation and make the scraper chain become lax, under this condition, if not fasten the scraper chain as soon as possible, will cause that equipment conveying efficiency reduces, local coal piles up phenomenon such as serious, tail heap chain, scraper chain jump chain and knot to produce serious influence to equipment normal operating and colliery normal production process. At present, the chain tightening of the underground coal mine scraper conveyor mainly depends on manual control of an electric hoist by workers, the chain tightening degree is not easy to control, and the requirement on the skill proficiency of workers is high.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a scraper conveyor's tight chain device, concrete scheme is:
a chain tightening device of a scraper conveyor comprises a transverse support, wherein longitudinal sliding grooves are formed in the lower portions of two ends of the support, a transverse screw is arranged on the upper portion of the support, the screw is provided with a forward thread section and a reverse thread section, sliding blocks are arranged on the forward thread section and the reverse thread section, two sides of each sliding block are hinged to support arms, the support arms on the same side of the two sliding blocks are hinged to the same transverse pull rod, and hooks are arranged at two ends of the transverse pull rod; the screw is connected with a hydraulic motor.
Preferably, telescopic end seats are arranged at two ends of the support, and the sliding groove is arranged at the lower part of the end seat.
Preferably, the tie rod is a telescopic rod body.
Preferably, the device comprises a plurality of supports arranged in parallel; the support arms between adjacent supports are hinged to the same tie rod.
The utility model has the advantages that: the chain tightening device of the scheme adopts the opening angle of the screw rod driving support arm to control the chain tightening degree, and is simple, convenient and reliable to operate. In addition, compared with the traditional chain tightening method, the chain tightening device in the scheme adopts screw rod driving, has a self-locking function, can prevent chain rebounding in the chain tightening process, and is safe and reliable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the middle support of the present invention.
Detailed Description
As shown in fig. 1-2, the chain tightening device of the scraper conveyor structurally comprises a transverse support 1, the width of the support corresponds to the width of a chute of the scraper conveyor, longitudinal sliding grooves 2 are arranged at the lower parts of two ends of the support, and the positions of the sliding grooves 2 correspond to a groove plate of the chute of the scraper conveyor. The upper part of the support is provided with a transverse screw rod 3, the screw rod 3 is provided with a forward thread section and a reverse thread section, the forward thread section and the reverse thread section are provided with sliding blocks 4, the sliding blocks 4 are in thread fit with the screw rod 3, and the two sliding blocks move oppositely or reversely when the screw rod 3 is rotated. Two sides of the sliding blocks are hinged with support arms 5, the support arms on the same side of the two sliding blocks are hinged to the same transverse pull rod 6, and two ends of the transverse pull rod are provided with hooks 7; the screw 3 is connected with a hydraulic motor 8 for driving the screw to rotate. When the chain is tightened, the sliding chutes at the two ends of the support are correspondingly erected on the groove plates at the two sides of the scraper conveyor, the hooks at the two ends of the transverse pull rod are hung on the chains at the two sides of the chain to be tightened, the hydraulic motor is started, the sliding block moves in the reverse direction, the support arm contracts, the transverse pull rods at the two sides are pulled to be closed, and then the operations of melting and connecting the chain are carried out.
In order to adapt to the scraper conveyors with different widths, the telescopic end seats 9 are arranged at the two ends of the support, and the sliding grooves are arranged at the lower parts of the end seats. Specifically, a sliding sleeve 10 is arranged on the support, a sliding rod 11 is arranged on the end seat, and the sliding rod is sleeved in the sliding sleeve, so that the end seat and the support can be connected in a telescopic manner.
Similarly, in order to adapt to different distances between the chains on two sides, the cross pull rod is a telescopic rod body, a threaded connection rod body is specifically adopted, a threaded adjusting rod 12 is arranged in the middle of the cross pull rod, the rod body with hooks at two ends is in threaded connection with the threaded adjusting rod, and the support arm is hinged on the rod body with hooks at two ends. The length adjustment of the transverse pull rod can be realized by rotating the middle thread adjusting rod 12.
In addition, the chain tightening device in the scheme can comprise a plurality of supports which are arranged in parallel; the support arms between adjacent supports are hinged to the same tie rod. The support arms among the plurality of supports are connected in series, so that the working length of the chain tightening device can be flexibly adjusted.
Claims (4)
1. The utility model provides a chain tightening device of scraper conveyor which characterized in that: the device comprises a transverse support, wherein longitudinal sliding grooves are formed in the lower portions of two ends of the support, a transverse screw rod is arranged on the upper portion of the support, the screw rod is provided with a forward thread section and a reverse thread section, sliding blocks are arranged on the forward thread section and the reverse thread section, support arms are hinged to two sides of each sliding block, the support arms on the same side of the two sliding blocks are hinged to the same transverse pull rod, and hooks are arranged at two ends of the transverse pull rod; the screw is connected with a hydraulic motor.
2. The chain tensioner of a scraper conveyor as claimed in claim 1, characterized in that: the both ends of support are equipped with the telescopic end socket, the lower part of end socket is located to the spout.
3. The chain tensioner of a scraper conveyor as claimed in claim 1, characterized in that: the transverse pull rod is a telescopic rod body.
4. The chain tensioner of a scraper conveyor as claimed in any one of claims 1-3, characterized in that: the number of the supports is multiple, and the supports are arranged in parallel; the support arms between adjacent supports are hinged to the same tie rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210499.XU CN211168590U (en) | 2019-12-11 | 2019-12-11 | Chain tightening device of scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210499.XU CN211168590U (en) | 2019-12-11 | 2019-12-11 | Chain tightening device of scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211168590U true CN211168590U (en) | 2020-08-04 |
Family
ID=71827111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922210499.XU Expired - Fee Related CN211168590U (en) | 2019-12-11 | 2019-12-11 | Chain tightening device of scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211168590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173516A (en) * | 2021-04-02 | 2021-07-27 | 杭州中伦信号技术有限公司 | Wireless control electric lifting device |
-
2019
- 2019-12-11 CN CN201922210499.XU patent/CN211168590U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113173516A (en) * | 2021-04-02 | 2021-07-27 | 杭州中伦信号技术有限公司 | Wireless control electric lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 Termination date: 20201211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |