CN2070728U - Anti-fall cam type safety device for mining elevator - Google Patents
Anti-fall cam type safety device for mining elevator Download PDFInfo
- Publication number
- CN2070728U CN2070728U CN 89220858 CN89220858U CN2070728U CN 2070728 U CN2070728 U CN 2070728U CN 89220858 CN89220858 CN 89220858 CN 89220858 U CN89220858 U CN 89220858U CN 2070728 U CN2070728 U CN 2070728U
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- CN
- China
- Prior art keywords
- right sides
- safety device
- boatswain chair
- cage
- cam
- 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.)
- Withdrawn
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- Emergency Lowering Means (AREA)
Abstract
The utility model discloses an anti-falling cam type safety device for mine hoist, which is characterized in that components with a spring and a cam wheel are adopted, lever supporting components which are mutually hinged are provided, with the double functions of the supporting of the lever and the self locking of the cam wheel, and a safety device used for preventing the dangers of falling into a well caused by the breaking of the lifting wire robe or the looseness of the rob clamp. The cage is clamped between the two guiding wire ropes of the cage, which is used for avoiding the accident of falling into a well. The utility model has the advantages of simple structure, reliable motion, easy manufacture and installation, and low cost, which is suitable for being ananti-falling safety device of various medium and small sized mine hoists.
Description
The utility model relates to the anti-fall safety device of a kind of mine hoist, and particularly a kind of employing has spring and cam member, and the lever support component that mutually is hinged shoulders bar, the anti-fall safety device of cam-type mine hoist cage again.
The anti-fall safety device of existing mine hoist cage is generally a kind of Wedge type safety device that adopts guide rail to make guiding.It is applied in the large and medium-sized mine hoist equipment.For small mine, particularly the nonstandardized technique place of One's name is legion, small towns mine do not have the ripe anti-fall safety device of mine hoist at present as yet.Through investigation, such mine cage falling accident happens occasionally, and causes device damage, personal casualty, brings cataphoretic failure for country and society.
The purpose of this utility model is exactly the anti-fall safety device of mine hoist that a kind of reliable effect will be provided for middle-size and small-size mine.
Task of the present utility model is finished as follows: promoting steel cable connection cage one end, be connected with bearing pin with the anti-fall safety device of cage of main suspension ring, be connected with cage in U type support lower end with component set-ups such as the boatswain chair that has cam member, spring, the support of U type, crossbeam, support plates.This safety device is assisted and is provided with two guiding steel cables, vertical respectively logical passing through in the support plate of the crossbeam two ends of safety device, lead with the guiding crop rotation on the support plate, the whole pit shaft of the vertical perforation of two guiding steel cables, and be provided with take-up device, when one and because of cage hoisting steel rope breaking or wire clips are loosening, unhook etc. the cage falling accident will take place the time, cage and lift heavy thing thereof are the free falling state and drop down.Boatswain chair in the gravity pulling safety device of utilization tenesmus this moment object, produce leverage, the pulling function of spring levers up the cam part of boatswain chair lower end and tightly blocks guiding steel cable in the support plate in addition, produces self-locking and causes cage to stop to fall, and prevents that falling accident from taking place.Be shaped on up-narrow and down-wide trapezoidal chute in the middle of boatswain chair top, the bearing pin that main suspension ring are connected with the boatswain chair of safety device can be free to slide in the boatswain chair chute when safety effect and be connected, and avoids stuck malfunctioning.The length of trapezoidal chute can be decided by concrete mineshaft diameter, also offers the length adjustment groove on the crossbeam of safety device, in order to adapt to the pit shaft of different-diameter.
Calculate and actual examination through theory, according to the cage of different size and weight and the size of load, select the lifting steel cable of respective diameters, the anti-fall safety device of this cage all can play effectively reliably and prevent that cage from weighing down the safety effect of well.The gig cable diameter of the middle-size and small-size mine in present all kinds of local small towns adopts ∮ 19.5～25.4mm usually.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
With reference to Fig. 1, with main suspension ring (1) the cage hoisting steel cable is linked to each other boatswain chair (2) for being symmetrical set with two boatswain chairs (2) in the anti-fall safety device, with a bearing pin main suspension ring (1) are connected with two boatswain chairs (2).Make the structure of cam (6) shape in two boatswain chairs (2) lower end, two cams (6) use rotating shaft (7) to link to each other with left and right sides support plate (10) respectively, connected by crossbeam (12) between left and right sides support plate (10), the big I of two support plates (10) spacing is decided according to pit shaft actual diameter size, regulates with crossbeam (12).Left and right sides support plate (10) is connected and composed with supporting pin (8) by two support plates up and down respectively, is respectively equipped with a pulley (9) and two track adjusting wheels (11) on left and right sides support plate (10), in order to the slip and the guiding of the guiding steel cable (13) that vertically runs through support plate (10) centre.Use the hinged left and right sides of connecting pin (5) U type support (4) in the middle and lower part of left and right sides boatswain chair (2) respectively, hold in compiling of left and right sides U type support (4) to be connected with winding cage.Between the bottom of the upper end of left and right sides boatswain chair (2) and left and right sides U type support (4), be connected with symmetrical two springs (3).
Under the normal situation about promoting of cage, the cam part of left and right sides boatswain chair (2) lower end is contact guidance steel cable (13) not, and cage promotes vertically along the guiding of track adjusting wheel (11) and the free sliding ground of pulley (9) between two guiding steel cables (13).In case when promoting steel rope breaking, or wire clips is loosening, during unhook etc., cage and lift heavy thing are the free falling state and drop down, utilize the gravity of tenesmus object this moment, make its compression, produce lever power works and use by left and right sides U type support (4) and spring (3) pulling left and right sides boatswain chair (2), boatswain chair (2) lower end cam part is levered up, tightly by asphyxia by external pressure on the chest and abdomen on two guiding steel cables (13), can prevent immediately cage continue fall, avoid the generation of falling accident.Under normal hoisting speed situation, this safety device can be in cage (in the promptly 0.6 second) stop motion in a meter of gliding.
As calculated and checking, cam (6) end self-locking lift angle B ' is for being equal to or less than 15 °, less than cam (6) and friction angle =16 ° 50 ' (getting coefficientoffriction=0.3) between steel cable (13) of leading
The utlity model has following features:
This mine hoist falling-prevention protecting device is simple in structure, reliable in action, lever and the effect of cam double insurance are arranged. This installs manufacturing, simple installation, low, the easy popularization of cost, is fit to do the falling-prevention protecting device of all kinds of middle-size and small-size mine hoists.
Claims (2)
1, anti-fall safety device of being made up of boatswain chair (2), spring (3), the support of U type (4), crossbeam (12), support plate (10) and guiding steel cable (13) of mine hoist is characterized in that:
A, main suspension ring (1) are connected with a rotating bearing pin with left and right sides boatswain chair (2), the lower end cam part (6) of left and right sides boatswain chair (2) uses rotating shaft (7) to be connected with left and right sides support plate (10) respectively, use connecting pin (5) to be connected with left and right sides U type support (4) upper end respectively in the middle and lower part of left and right sides boatswain chair (2), junction is connected with winding cage in left and right sides U type support (4) lower end;
B, between the lower inside of the top of left and right sides boatswain chair (2) and left and right sides U type support (4), use two springs (3) to be connected respectively;
C, about lead steel cable (13) respectively vertically in left and right sides support plate (10), being positioned at cam (6) holds before, guiding steel cable (13) vertically runs through whole pit shaft, on left and right sides support plate (10), guiding steel cable (13) both sides and the outside are respectively equipped with an a pair of track adjusting wheel (11) and a pulley (9);
D, in the middle of the upper side of left and right sides boatswain chair (2), have up-narrow and down-wide trapezoidal groove;
E, be provided with two length adjustment grooves in the middle of the crossbeam (12), use bolt.
2, device according to claim 1 is characterized in that cam (6) end self-locking lift angle is for being equal to or less than 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220858 CN2070728U (en) | 1989-12-08 | 1989-12-08 | Anti-fall cam type safety device for mining elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220858 CN2070728U (en) | 1989-12-08 | 1989-12-08 | Anti-fall cam type safety device for mining elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2070728U true CN2070728U (en) | 1991-02-06 |
Family
ID=4875451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89220858 Withdrawn CN2070728U (en) | 1989-12-08 | 1989-12-08 | Anti-fall cam type safety device for mining elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2070728U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315691C (en) * | 2004-12-29 | 2007-05-16 | 大连理工大学 | Unloading and positioning device for salvage ship |
| CN102303802A (en) * | 2011-08-04 | 2012-01-04 | 中国兵器工业第二○二研究所 | Broken rope protective device of upright lift gate |
| CN102785980A (en) * | 2011-05-17 | 2012-11-21 | 厦门思尔特机器人***有限公司 | Anti-falling safety device |
| CN103010894A (en) * | 2012-11-29 | 2013-04-03 | 三一重工股份有限公司 | Rope breakage preventing device and rescue capsule |
| CN103009670A (en) * | 2012-11-26 | 2013-04-03 | 中信重工机械股份有限公司 | Self-locking hovering device of hydraulic press walking beam |
| CN105084143A (en) * | 2014-05-08 | 2015-11-25 | 赵赵 | Wind tower lifter chain suspension traction and safety device |
| CN105967023A (en) * | 2016-07-25 | 2016-09-28 | 无锡福镁轻合金科技有限公司 | Construction hoist |
| CN109718488A (en) * | 2019-01-03 | 2019-05-07 | 国网山东省电力公司淄博供电公司 | Angle steel tower climbs protective device |
| CN111039241A (en) * | 2019-11-05 | 2020-04-21 | 邱辉 | Locking mechanism for vertical lifting device |
-
1989
- 1989-12-08 CN CN 89220858 patent/CN2070728U/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315691C (en) * | 2004-12-29 | 2007-05-16 | 大连理工大学 | Unloading and positioning device for salvage ship |
| CN102785980A (en) * | 2011-05-17 | 2012-11-21 | 厦门思尔特机器人***有限公司 | Anti-falling safety device |
| CN102303802A (en) * | 2011-08-04 | 2012-01-04 | 中国兵器工业第二○二研究所 | Broken rope protective device of upright lift gate |
| CN102303802B (en) * | 2011-08-04 | 2013-01-09 | 中国兵器工业第二0二研究所 | Broken rope protective device of upright lift gate |
| CN103009670A (en) * | 2012-11-26 | 2013-04-03 | 中信重工机械股份有限公司 | Self-locking hovering device of hydraulic press walking beam |
| CN103009670B (en) * | 2012-11-26 | 2015-06-10 | 中信重工机械股份有限公司 | Self-locking hovering device of hydraulic press walking beam |
| CN103010894A (en) * | 2012-11-29 | 2013-04-03 | 三一重工股份有限公司 | Rope breakage preventing device and rescue capsule |
| CN103010894B (en) * | 2012-11-29 | 2016-01-20 | 三一重工股份有限公司 | Rope broken protector and survival capsule |
| CN105084143A (en) * | 2014-05-08 | 2015-11-25 | 赵赵 | Wind tower lifter chain suspension traction and safety device |
| CN105967023A (en) * | 2016-07-25 | 2016-09-28 | 无锡福镁轻合金科技有限公司 | Construction hoist |
| CN109718488A (en) * | 2019-01-03 | 2019-05-07 | 国网山东省电力公司淄博供电公司 | Angle steel tower climbs protective device |
| CN111039241A (en) * | 2019-11-05 | 2020-04-21 | 邱辉 | Locking mechanism for vertical lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |