CN102922365A - Safety protecting device for preventing counter weight machine from dropping - Google Patents
Safety protecting device for preventing counter weight machine from dropping Download PDFInfo
- Publication number
- CN102922365A CN102922365A CN 201210477723 CN201210477723A CN102922365A CN 102922365 A CN102922365 A CN 102922365A CN 201210477723 CN201210477723 CN 201210477723 CN 201210477723 A CN201210477723 A CN 201210477723A CN 102922365 A CN102922365 A CN 102922365A
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- CN
- China
- Prior art keywords
- pull bar
- protecting device
- weighing block
- balancing weight
- safety protecting
- 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.)
- Pending
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Abstract
The invention relates to a safety protecting device for preventing a counter weight machine from dropping, belonging to the field of a machine tool. The safety protecting device is provided with a power head; the safety protecting device is characterized in that the power head is connected with the upper end of a draw rod by a steel rope; the draw rod passes through a central part of a weighing block; the weighing block is limited by the lower end of the draw rod; a groove is formed in the rod wall of the draw rod; the weighing block is arranged between two guide rods; a clamping slot is respectively formed in the opposite positions of the inner sides of the two guide rods; a through hole is formed in the weighing block along the transverse direction; a pin shaft is mounted in the through hole; an idle wheel is mounted at one end of the pin shaft while a press cover is fixed at the other end of the pin shaft; and a spring is compressed on the pin shaft by the press cover. The safety protecting device is capable of responding rapidly in case that the steel rope is broken to trigger a protecting mechanism to reduce the speed of the weighing block in time until the weighing block stops working under the function of the protecting mechanism, so that the loss caused by gravity can be reduced to the lowest level.
Description
Technical field
The present invention relates to machine tool field, at length say it is a kind of weight machinery Anti-dropping safety protective device.
Background technology
As everyone knows, in machine industry, have a lot of similar means: unit head moves up and down, and all can have the balancing weight that quality is suitable with it oppositely mobile, connects by chain or steel wire rope between them.When the Accidental occurrence fracture appearred in chain or steel wire rope, because the quality of balancing weight is all more than several tons, balancing weight can cause great infringement to the parts below it under action of gravitation.
Summary of the invention
In order to overcome the deficiencies in the prior art; the invention provides a kind of weight machinery Anti-dropping safety protective device; can when wire cable rupture, react rapidly; trigger protection mechanism; so that balancing weight is under the effect of this mechanism; slow down timely until stop, the loss that can allow gravity cause minimizes.
The technical solution adopted for the present invention to solve the technical problems is: a kind of weight machinery Anti-dropping safety protective device; be provided with unit head; it is characterized in that; unit head links to each other with the upper end of pull bar through steel wire rope; pull bar passes the central part of balancing weight; balancing weight is spacing by the lower end of pull bar; be processed with groove on the bar wall of pull bar; balancing weight is between two guide posts, and two guide posts are processed with draw-in groove on the inboard relative positions, balance weight body laterally be processed with through hole; bearing pin is installed in the through hole; bearing pin one end is equipped with roller, and the other end of bearing pin is fixed with gland, gland with spring-compressed on bearing pin.
The present invention also can be achieved by the following measures: between the lower end of pull bar and the balancing weight downside butterfly spring is installed, the upper end of pull bar is combined with adjusting nut.
The invention has the beneficial effects as follows, can react rapidly when wire cable rupture, trigger protection mechanism stops so that balancing weight under the effect of this mechanism, slows down timely, and the loss that can allow gravity cause minimizes.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention.
Fig. 2 is A of the present invention section enlarged drawing.
1. unit heads among the figure, 2. steel wire rope, 3. adjusting nut, 4. pull bar, 5. guide post, 6. balancing weight, 7. butterfly spring, 8. roller, 9. bearing pin, 10. spring, 11. glands, 12. draw-in grooves, 13. grooves.
The specific embodiment
At Fig. 1, among Fig. 2, the present invention is provided with unit head 1, unit head 1 links to each other through the upper end of steel wire rope 2 with pull bar 4, steel wire rope 2 utilizes sprocket holder to do promise to move smooth and easy, pull bar 4 passes the central part of balancing weight 6, between the lower end of pull bar 4 and balancing weight 6 downsides butterfly spring 7 is installed, butterfly spring 7 is compressed between the hold-down nut and balancing weight 6 downsides of pull bar 4 lower ends, the upper end of pull bar 4 is combined with adjusting nut 3, balancing weight 6 is spacing by the hold-down nut of pull bar 4 lower ends, be processed with groove 13 on the bar wall of pull bar 4, balancing weight 6 is between two guide posts 5, balancing weight 6 constraint by guide post 5 in column guarantees the correct track that moves up and down to be processed with draw-in groove 12 on two guide post 5 inboard relative positions, balance weight body 6 laterally be processed with through hole, bearing pin 9 is installed in the through hole, bearing pin 9 one ends are equipped with roller 8, and the other end of bearing pin 9 is fixed with gland 11, and gland 11 is compressed in spring 10 on the bearing pin 9.Calculate the deflection of butterfly spring 7 during assembling according to the weighing scale of balancing weight 6; according to the distance of deflection control and regulation nut 3 to balancing weight 6; the use of this distance is: when steel wire rope 2 fracture, butterfly spring 7 pulls down certain distance to pull bar 4 by elastic force, thus trigger protection mechanism.
Be processed with the trapezoidal draw-in groove 12 in many places on the guide post 5 of the present invention, pull bar 4 moves down in butterfly spring 7 elastic force effects when steel wire rope 2 fracture, and roller 8 is shifted out by groove 13 places of pull bar 4.Because the variation of difference of height so that bearing pin 9 be inserted in the trapezoidal draw-in groove 12 of guide post 5, thereby the moving down of restriction balancing weight 6.Bearing pin 9 is fixed on the balancing weight 6 by gland 11 with spring 10, and roller 8 was close to groove 13 places of pull bar 4 when spring 10 guaranteed the lathe normal operation, guarantees that the movement of balancing weight 6 is smooth and easy.
Claims (2)
1. weight machinery Anti-dropping safety protective device; be provided with unit head; it is characterized in that: unit head links to each other with the upper end of pull bar through steel wire rope; pull bar passes the central part of balancing weight; balancing weight is spacing by the lower end of pull bar; be processed with groove on the bar wall of pull bar; balancing weight is between two guide posts; be processed with draw-in groove on two inboard relative positions of guide post; balance weight body laterally be processed with through hole, bearing pin is installed in the through hole, bearing pin one end is equipped with roller; the other end of bearing pin is fixed with gland, gland with spring-compressed on bearing pin.
2. described weight machinery Anti-dropping safety protective device according to claim 1 is characterized in that between the lower end of said pull bar and the balancing weight downside butterfly spring being installed, and the upper end of pull bar is combined with adjusting nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210477723 CN102922365A (en) | 2012-11-22 | 2012-11-22 | Safety protecting device for preventing counter weight machine from dropping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210477723 CN102922365A (en) | 2012-11-22 | 2012-11-22 | Safety protecting device for preventing counter weight machine from dropping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102922365A true CN102922365A (en) | 2013-02-13 |
Family
ID=47637366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210477723 Pending CN102922365A (en) | 2012-11-22 | 2012-11-22 | Safety protecting device for preventing counter weight machine from dropping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102922365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663048A (en) * | 2013-10-25 | 2014-03-26 | 浙江吉利控股集团有限公司 | Connecting structure of lifting chain and counter weight |
| CN105290870A (en) * | 2015-11-13 | 2016-02-03 | 通裕重工股份有限公司 | Balance weight device of boring-milling machine |
| CN110130763A (en) * | 2019-06-24 | 2019-08-16 | 核工业理化工程研究院 | Column drive mechanism for multi-operation side ventilation operation case |
-
2012
- 2012-11-22 CN CN 201210477723 patent/CN102922365A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663048A (en) * | 2013-10-25 | 2014-03-26 | 浙江吉利控股集团有限公司 | Connecting structure of lifting chain and counter weight |
| CN103663048B (en) * | 2013-10-25 | 2015-11-04 | 浙江吉利控股集团有限公司 | Lift chain and counterweight connection structure |
| CN105290870A (en) * | 2015-11-13 | 2016-02-03 | 通裕重工股份有限公司 | Balance weight device of boring-milling machine |
| CN110130763A (en) * | 2019-06-24 | 2019-08-16 | 核工业理化工程研究院 | Column drive mechanism for multi-operation side ventilation operation case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |