CN201255005Y - Adjustable point lever - Google Patents
Adjustable point lever Download PDFInfo
- Publication number
- CN201255005Y CN201255005Y CNU2008201481691U CN200820148169U CN201255005Y CN 201255005 Y CN201255005 Y CN 201255005Y CN U2008201481691 U CNU2008201481691 U CN U2008201481691U CN 200820148169 U CN200820148169 U CN 200820148169U CN 201255005 Y CN201255005 Y CN 201255005Y
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- CN
- China
- Prior art keywords
- leading screw
- positive
- screw
- negative
- utility
- 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 discloses an adjustable point rod. The two ends of a screw sleeve (4) of the point rod are respectively provided with a positive screw thread hole and a negative screw thread hole; the positive screw thread hole and the negative screw thread hole are respectively provided with a screw (5) with positive screw threads or negative screw threads; the screw (5) at the upper end is connected with a top sleeve (3); and the screw (5) at the lower end is connected with a dentate claw (6). The utility model has the advantages of adjustable length, stability, reliability and high security, and is applicable to the blasting mining face with large fluctuation or changes in the coal seam.
Description
Technical field
The utility model relates to the mining machine technical field of auxiliary facilities, but especially a kind of point of adjustment bar.
Background technology
At present its coal of coal-face of adopting at big gun is thick 0.2～7 meter, and during 17 °～26 ° of seam inclinations, the coal seam changes sharply, and it is frequent that mining height is changed, the allotment work that has strengthened drag conveyor head point bar; Since directly use mine timber as a bar get loose easily, landing, be unfavorable for safety in production, be difficult to guarantee that length is just right during mine timber intercepting simultaneously, time-consuming effort again during intercepting.
The utility model content
But the purpose of this utility model provides a kind of point of adjustment bar, and is solid and reliable, safe.
The technical solution of the utility model is: but described a kind of point of adjustment bar, this bar respectively is provided with positive and negative threaded bore at the two ends of leading screw sleeve, the leading screw of positive and negative screw thread respectively is housed in positive and negative threaded bore, and the leading screw of upper end links to each other with the top cover, and the leading screw of lower end links to each other with the dentation pawl.
Middle part at described leading screw sleeve is provided with the pricker hole with being symmetrically distributed.
On described dentation pawl, be provided with fixing hole.
The utility model is owing to can regulate its length, and the termination is provided with the dentation pawl, can just change with the coal seam firmly to be fixed between drag conveyor head and the supporting back timber after regulating its length, and is safe and reliable, and the saving mine timber is time saving and energy saving.The utility model is applicable to that the coal seam fluctuation changes big blast mining face.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in fig. 1, the utility model respectively is provided with positive and negative threaded bore at the two ends of leading screw sleeve 4, the leading screw 5 of positive and negative screw thread respectively is housed in positive and negative threaded bore, the leading screw 5 of upper end links to each other with top cover 3, the leading screw 5 of lower end links to each other with dentation pawl 6, middle part at leading screw sleeve 4 is provided with pricker hole 8 with being symmetrically distributed, is provided with fixing hole 7 on dentation pawl 6.
When the utility model uses, put into mine timber section 2 in the top cover 3 with the upper end earlier, again mine timber section 2 is withstood on the lower end of supporting back timber 1, the dentation pawl 6 of lower end by screw on drag conveyor head fixed mount, then drill steel is inserted in the pricker hole 8 at leading screw sleeve 4 middle parts, rotational lead screw sleeve 4, make leading screw 5 flexible its length at two ends in the leading screw sleeve 4 adjust the position after, can firmly be stuck between drag conveyor head and the supporting back timber 1.
Claims (3)
- But 1, a kind of point of adjustment bar, it is characterized in that: this bar respectively is provided with positive and negative threaded bore at the two ends of leading screw sleeve (4), the leading screw (5) of positive and negative screw thread respectively is housed in positive and negative threaded bore, and the leading screw of upper end (5) links to each other with top cover (3), and the leading screw of lower end (5) links to each other with dentation pawl (6).
- But 2, point of adjustment bar according to claim 1 is characterized in that: the middle part at described leading screw sleeve (4) is provided with pricker hole (8) with being symmetrically distributed.
- But 3, point of adjustment bar according to claim 1 is characterized in that: be provided with fixing hole (7) on described dentation pawl (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201481691U CN201255005Y (en) | 2008-07-24 | 2008-07-24 | Adjustable point lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201481691U CN201255005Y (en) | 2008-07-24 | 2008-07-24 | Adjustable point lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255005Y true CN201255005Y (en) | 2009-06-10 |
Family
ID=40738321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201481691U Expired - Fee Related CN201255005Y (en) | 2008-07-24 | 2008-07-24 | Adjustable point lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255005Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948840A (en) * | 2017-05-17 | 2017-07-14 | 洛阳理工学院 | A kind of method for building new tunnel with old tunnel cross |
| CN107402058A (en) * | 2017-08-10 | 2017-11-28 | 天津电力机车有限公司 | Portable subway vehicle weighing device |
-
2008
- 2008-07-24 CN CNU2008201481691U patent/CN201255005Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948840A (en) * | 2017-05-17 | 2017-07-14 | 洛阳理工学院 | A kind of method for building new tunnel with old tunnel cross |
| CN106948840B (en) * | 2017-05-17 | 2019-04-30 | 洛阳理工学院 | A method of new tunnel is built with old tunnel cross |
| CN107402058A (en) * | 2017-08-10 | 2017-11-28 | 天津电力机车有限公司 | Portable subway vehicle weighing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: YIMA MINING GROUP CO., LTD. Free format text: FORMER NAME: YIMA MINING( GROUP ) CO., LTD |
|
| CP03 | Change of name, title or address |
Address after: No 6, Tian Long Road, Henan, Yima: 472300 Patentee after: Yima Coal Industry Group Co., Ltd. Address before: No 6, Tian Long Road, Henan, Yima: 472300 Patentee before: Yima Coal Industry (Group) Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: HE NAN DAYOU ENERGY CO., LTD. Free format text: FORMER OWNER: YIMA COAL GROUP CO., LTD. Effective date: 20110413 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 472300 NO. 6, QIANQIU ROAD, YIMA CITY, HE NAN PROVINCE TO: 472300 YARD 6, QIANQIU EAST ROAD, YIMA CITY, HE NAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110413 Address after: 472300 No. six, long East Road, Yima, Henan Patentee after: Henan Da You Energy Co., Ltd. Address before: 472300 No. 6, Tian Long Road, Yima, Henan Patentee before: Yima Coal Industry Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20130724 |