CN102233884A - Buffer variable force energy adsorption adjustable device for preventing vehicle from running in inclined shaft - Google Patents
Buffer variable force energy adsorption adjustable device for preventing vehicle from running in inclined shaft Download PDFInfo
- Publication number
- CN102233884A CN102233884A CN2010101706038A CN201010170603A CN102233884A CN 102233884 A CN102233884 A CN 102233884A CN 2010101706038 A CN2010101706038 A CN 2010101706038A CN 201010170603 A CN201010170603 A CN 201010170603A CN 102233884 A CN102233884 A CN 102233884A
- Authority
- CN
- China
- Prior art keywords
- variable force
- force energy
- inclined shaft
- rope
- axle
- 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
Links
Images
Abstract
The invention discloses a buffer variable force energy adsorption adjustable device for preventing a vehicle from running in an inclined shaft and relates to mining equipment. The device consists of a vehicle stopping column 6 for preventing a mining vehicle from running, and a variable force energy adsorption device 9. The vehicle stopping column 6 comprises a plurality of buffer steel wire ropes 8, C-shaped sleeve pipes 6-1, and hanging chains 6-2; two ends of each buffer steel wire rope 8 are connected with the viable force energy adsorption device 9; the C-shaped sleeve pipes are connected through the hanging chains 6-2 to form a grating guardrail; and the hanging chains 6-2 are connected with a lifting winch 4. The variable force energy adsorption device 9 is arranged on an inclined shaft basis through foundations 10 and foundation bolts 16 and comprises a support 9-1, a shaft 9-4, a shaft sleeve 9-6, a winding drum 9-8, an external brake plate 9-10, an inner brake plate 9-12, and a friction sheet 9-13. The device performs adjustment timely and buffers energy according to parameters of each inclined shaft, so that the device can effectively stop the vehicle optimally when the rope is broken and then the vehicle runs in the inclined shaft; therefore, the deformation of the mine vehicle under impact is reduced.
Description
Technical field
The present invention relates to a kind of mining equiment, be specifically related to use in the inclined gallery transportations prevent the mine car sport car time, to the safety device of mine car buffering energy-absorbing.
Background technology
Present anti-sport car equipment in the coal mine sloping lane transportation, mainly contain three kinds: a kind of is the low equipment of more easy cost, be welded into the barrier shape by materials such as steel pipe or I-beam sections, one side of barrier is equipped with two vertical shafts, axle sleeve, assemble, and the barrier that assembles is installed in the end opening in tunnel, inclined gallery, when the rope sport car takes place to break in the inclined gallery transportation, spur rope by the workman and close barrier, enforcement is to the interception of disconnected rope sport car, though it has played certain safety effect, need manual activation could produce action, interception result is not good, and it does not possess cushion characteristic, is rigid collision basically when having an accident.
Second kind is the automatic anti-running-away car device of the inclined gallery transportation of the patent No. 200420024182.8, it is characterized in that being made up of micro controller system and infrared detection equipment etc., and its shortcoming is:
1, infrared detection equipment is easy to generate misoperation, causes the accident;
2, the reliability of micro controller system is not high, and its shock absorber can't be demarcated by failure-free for straight line presser type buffering, cushion effect, and cushion characteristic is relatively poor.
The third is the patent No. 97239748.5 intelligent Type Protection Device for Inclined Shaft Runaway Car, and it is to become the multiple tracks door by opto-electronic pickup with magnetic induction sensor, intercept net group.Transferring of interception net is to send into programmable controller by the signal of two kinds of sensor to judge, discern and send sound and light alarm, and its energy disperser leans on steel rope deformation energy formula shock absorber for being similar to the BF type, and cushion characteristic is also relatively poor.
Summary of the invention
In order to solve the deficiency that above-mentioned technology exists, the invention provides the anti-sport car of a kind of inclined shaft with cushioning variable force energy-absorbing tunable arrangement, this installs easy processing, convenient disassembly, cushion effect is adjustable, the anti-sport car crash energy absorption equipment of dependable performance.And can do real-time adjusting according to the parameter of each inclined shaft, cushion effect is customized, make it when the rope sport car takes place to break in the inclined gallery transportation, can implement best interception effectively to vehicle, thereby reduce the distortion that mine car causes because of the impulsive force that is subjected to, and further reduce the potential safety hazard of being brought when the rope sport car is broken in the coal mine sloping lane transportation.
The present invention realizes with following technical scheme: the anti-sport car of a kind of inclined shaft is made up of arrester and variable force energy absorption device two parts with buffering variable force energy-absorbing tunable arrangement, and it is characterized in that: described arrester comprises: buffer rope, C molded cannula and suspension chain; Described C molded cannula is sleeved on the middle part of buffer rope, and the buffer rope two ends are connected with the variable force energy absorption device respectively; The upper and lower uniform arrangement of described C molded cannula connects to form the grid type guardrail by suspension chain between the C molded cannula; The suspension chain upper end is connected with lifting winch by steel rope; Described lifting winch is installed on the inclined shaft crag by fixed beam I; Arrester upper end is mounted on the inclined shaft on the crag by lifting rope; Described variable force energy absorption device is installed on the inclined shaft basis by base and holding-down bolt.
Described variable force energy absorption device comprises: support, axle, axle sleeve, reel, outer brake plate, inside brake sheet and friction lining; Described support is two symmetrically arranged triangular supports, and an end of axle is connected with support by flat key, and the other end of axle stretches out the part of support and makes screw thread, and jam nut is installed on the screw thread; Described axle sleeve endoporus sliding fit is sleeved on the axle, and sleeve outer circle is made into multi-edge column-shaped; Described internal friction sheet is a multi-disc, and its cylindrical is circular, and endoporus is made into many ribs hole and is sleeved on the axle sleeve; Described outer brake plate is a multi-disc, and its endoporus sliding fit is sleeved on the axle sleeve, many fan-shaped open slots of the uniform making of the cylindrical of outer brake plate; Described key is arranged in the described fan-shaped open slot, key by screw retention on reel; Described reel two ends are connected with sleeve outer circle by poted assemblies; The external cylindrical surface of reel is made many group grooves, and described buffer rope is wound on the reel.
Described axle sleeve is two, clamps the dish spring between two axle sleeves.
The outer end of described jam nut is provided with pinch device; Described pinch device is made up of pressing plate and bolt; Pressing plate is connected with axle by screw thread, and bolt is installed in the two ends of pressing plate.
Described buffer rope two ends are fixed on the basis by rope gripper; Described rope gripper is made up of top board, lower platen, and upper and lower pressing plate faces mutually makes many arc grooves on the face, and buffer rope is installed in the arc groove, and upper and lower pressing plate is fixed on the basis by nut and holding-down bolt.
Good effect of the present invention is:
1, energy-absorbing is big, and braking force is stable, and cushion characteristic is good, improves the reliability that the sport car buffering is arrested, and guarantees the safe reliability that the inclined shaft transportation promotes.
2, the variable force energy absorption device is provided with the accent force mechanisms, avoids buffer rope can not skid on the variable force energy disperser.
3, rational in infrastructure, Installation and Debugging are convenient.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail
Fig. 1 is an installation site of the present invention scheme drawing.
Fig. 2 is that the D of Fig. 1 is to view.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is variable force energy-absorbing buffering apparatus structure scheme drawing among the present invention.
Fig. 5 is the A-A section-drawing of Fig. 4.
Fig. 6 is the B-B section-drawing of Fig. 4.
Fig. 7 be Fig. 1 C place partial enlarged drawing.
Fig. 8 is the E-E rotation profile of Fig. 7.
Among the figure: 1, lifting rope, 2, hoisting rope, 3, trip sensors, 4, lifting winch, 5, fixed beam I, 6, arrester, 6-1, the C molded cannula, 6-2, suspension chain, 7, mine car, 8, buffer rope, 9, the variable force energy absorption device, 9-1, support, 9-2, pressing plate, 9-3, bolt, 9-4, axle, 9-5, jam nut, 9-6, axle sleeve, 9-7, poted assemblies, 9-8, reel, 9-9, the dish spring, 9-10, outer brake plate, 9-11, key, 9-12, the inside brake sheet, 9-13, friction lining, 9-14, screw, 9-15, flat key, 10, base, 11, track, 12, cord-pressing block, 13, top board, 14, lower platen, 15, nut, 16, holding-down bolt.
The specific embodiment
As shown in Figure 1, 2, 3: the anti-sport car of a kind of inclined shaft is with cushioning variable force energy-absorbing tunable arrangement, be made up of the arrester 6 that stops the mine car sport car and variable force energy absorption device 9 two parts, it is characterized in that: described arrester 6 comprises: many buffer ropes 8, C molded cannula 6-1 and suspension chain 6-2; Described C molded cannula 6-1 is sleeved on the middle part of buffer rope 8, and buffer rope 8 two ends are connected with variable force energy absorption device 9; The upper and lower uniform arrangement of described C molded cannula 6-1 connects to form the grid type guardrail by suspension chain 6-2 between the C molded cannula 6-1; Suspension chain 6-2 upper end is connected with lifting winch 4 by steel rope; Described lifting winch 4 is installed on the inclined shaft crag by fixed beam I 5; Arrester 6 upper ends are mounted on the inclined shaft on the crag by lifting rope 1.Described variable force energy absorption device 9 is installed on the inclined shaft basis by base 10 and holding-down bolt 16.Press
Described variable force energy absorption device 9 comprises: support 9-1, axle 9-4, axle sleeve 9-6, reel 9-8, outer brake plate 9-10, inside brake sheet 9-12 and friction lining 9-13; Described support 9-1 is two symmetrically arranged triangular supports, and the end of axle 9-4 is connected with support 9-1 by flat key 9-15, and the other end of axle 9-4 stretches out the part of support 9-1 and makes screw thread, and jam nut 9-5 is installed on the screw thread; Described axle sleeve 9-6 endoporus sliding fit is sleeved on the 9-4, and axle sleeve 9-6 cylindrical is made into multi-edge column-shaped; Described internal friction sheet 9-12 is a multi-disc, and its cylindrical is circular, and endoporus is made into many ribs borehole jack and is contained on the axle sleeve 9-6; Described outer brake plate 9-10 is a multi-disc, and its endoporus sliding fit is sleeved on the axle sleeve 9-6, many fan-shaped open slots of the uniform making of the cylindrical of outer brake plate 9-10; Described key 9-11 is arranged in the fan-shaped open slot, and key 9-11 is fixed on the reel 9-8 by screw 9-14; Described reel 9-8 two ends are connected with axle sleeve (9-6) cylindrical by poted assemblies 9-7; Make many group grooves on the external cylindrical surface of reel 9-8, buffer rope 8 is wound on the reel 9-8.
Described axle sleeve 9-6 is two, clamps dish spring 9-9 between two axle sleeve 9-6.
The outer end of described jam nut 9-5 is provided with pinch device; Described pinch device is made up of pressing plate 9-2 and bolt 9-3; Pressing plate 9-2 is connected with axle 9-4 by screw thread, and bolt 9-3 is installed in the two ends of pressing plate 9-2.
Described buffer rope 8 two ends are fixed on the basis by rope gripper; Described rope gripper is made up of top board 13, lower platen 14, and upper and lower pressing plate 13,14 faces mutually makes many arc grooves on the face, and buffer rope 8 is installed in the arc groove, and upper and lower pressing plate is fixed on the basis by nut 15 and holding-down bolt 16.
During use, in inclined gallery on below the well head grade change point, above the midway location, shaft bottom grade change point etc. multiple spot arrange this device, and can suitably increase device quantity according to the mine hoisting parameter, improve the reliability that the sport car buffering is arrested.
According to the cushion effect of mine hoisting parameter adjustment variable force energy absorption device 9, its adjustment is as follows:
1, with spanner binding bolt 9-3, the axle sleeve 9-6 of propelling thrust left side Side moves to right, two axle sleeve 9-6 compress internal friction sheet 9-12, outer brake plate 9-10 and internal friction sheet 9-12, increase the buffer-braking power that internal friction sheet 9-12, outer brake plate 9-10 move mutually, on test platform, the variable force energy disperser is carried out demarcation of 1:1 power and the demarcation of pre-tightening apparatus predetermincd tension according to computing power then.Fix with jam nut 9-5 then, so that the reliable adjustment of buffer-braking power during on-site installation.
2, be connected with arrester 6 with four 6X19-φ, 28 buffer ropes, 8, one ends in this real formula example, the other end stays 15 meters buffer distance by the predetermincd tension control apparatus after twining 3 circles on the variable force energy absorption device 9, and the pre-tightening apparatus predetermincd tension is set to 5KN.When sport car takes place when, mine car 7 bump arresters 6 out of control, arrester 6 is delivered to impulsive force on the buffer rope 8, act on the power of buffer rope 8 and predetermincd tension and satisfy buffer rope 8 and on reel 9-8, can not skid, thereby realize that buffer rope 8 drives the variable force shock absorbers and cushions.Its cushion effect is for demarcating good braking force, also can be set to the maximum rating cushion effect, variable force energy disperser maximum cushioning power is 19.5 tons, and its maximum energy-absorbing is (19500+4 * 500) * 2 * 9.81 * (15 * 2)=12.65 million Jiao, thereby has improved the safe reliability that the inclined shaft transportation promotes.
Claims (5)
1. the anti-sport car of inclined shaft is made up of arrester (6) and variable force energy absorption device (9) two parts with buffering variable force energy-absorbing tunable arrangement, and it is characterized in that: described arrester (6) comprising: buffer rope (8), C molded cannula (6-1) and suspension chain (6-2); Described C molded cannula (6-1) is sleeved on the middle part of buffer rope (8), and buffer rope (8) two ends are connected with variable force energy absorption device (9) respectively; The upper and lower uniform arrangement of described C molded cannula (6-1) connects to form the grid type guardrail by suspension chain (6-2) between the C molded cannula (6-1); Suspension chain (6-2) upper end is connected with lifting winch (4) by steel rope; Described lifting winch (4) is installed on the inclined shaft crag by fixed beam I (5); Arrester (6) upper end is mounted on the inclined shaft on the crag by lifting rope (1); Described variable force energy absorption device (9) is installed on the inclined shaft basis by base (10) and holding-down bolt (16).
2. the anti-sport car of inclined shaft according to claim 1 is with cushioning variable force energy-absorbing tunable arrangement, and it is characterized in that: described variable force energy absorption device (9) comprising: support (9-1), axle (9-4), axle sleeve (9-6), reel (9-8), outer brake plate (9-10), inside brake sheet (9-12) and friction lining (9-13); Described support (9-1) is two symmetrically arranged triangular supports, one end of axle (9-4) is connected with support (9-1) by flat key (9-15), the other end of axle (9-4) stretches out the part of support (9-1) and makes screw thread, and jam nut (9-5) is installed on the screw thread; Described axle sleeve (9-6) endoporus sliding fit is sleeved on the axle (9-4), and axle sleeve (9-6) cylindrical is made into multi-edge column-shaped; Described internal friction sheet (9-12) is a multi-disc, and its cylindrical is circular, and endoporus is made into many ribs hole and is sleeved on the axle sleeve (9-6); Described outer brake plate (9-10) is a multi-disc, and its endoporus sliding fit is sleeved on the axle sleeve (9-6), many fan-shaped open slots of the uniform making of cylindrical of outer brake plate (9-10); Described key (9-11) is arranged in the described fan-shaped open slot, and key (9-11) is fixed on the reel (9-8) by screw (9-14); Described reel (9-8) two ends are connected with axle sleeve (9-6) cylindrical by poted assemblies (9-7); The external cylindrical surface of reel (9-8) is made many group grooves, and described buffer rope (8) is wound on the reel (9-8).
3. the anti-sport car of inclined shaft according to claim 2 is with cushioning variable force energy-absorbing tunable arrangement, and it is characterized in that: described axle sleeve (9-6) is two, clamps dish spring (9-9) between two axle sleeves (9-6).
4. the anti-sport car of inclined shaft according to claim 2 is with cushioning variable force energy-absorbing tunable arrangement, and it is characterized in that: the outer end of described jam nut (9-5) is provided with pinch device; Described pinch device is made up of pressing plate (9-2) and bolt (9-3); Pressing plate (9-2) is connected with axle (9-4) by screw thread, and bolt (9-3) is installed in the two ends of pressing plate (9-2).
5. the anti-sport car of inclined shaft according to claim 1 is with cushioning variable force energy-absorbing tunable arrangement, and it is characterized in that: described buffer rope (8) two ends are fixed on the basis by rope gripper; Described rope gripper is made up of top board (13), lower platen (14), upper and lower pressing plate (13,14) faces mutually makes many arc grooves on the face, buffer rope (8) is installed in the arc groove, and upper and lower pressing plate is fixed on the basis by nut (15) and holding-down bolt (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101706038A CN102233884A (en) | 2010-04-24 | 2010-04-24 | Buffer variable force energy adsorption adjustable device for preventing vehicle from running in inclined shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101706038A CN102233884A (en) | 2010-04-24 | 2010-04-24 | Buffer variable force energy adsorption adjustable device for preventing vehicle from running in inclined shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102233884A true CN102233884A (en) | 2011-11-09 |
Family
ID=44885120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101706038A Pending CN102233884A (en) | 2010-04-24 | 2010-04-24 | Buffer variable force energy adsorption adjustable device for preventing vehicle from running in inclined shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102233884A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273943A (en) * | 2013-05-21 | 2013-09-04 | 大连交通大学 | Torque-changeable buffer power absorber |
| CN103381842A (en) * | 2013-07-25 | 2013-11-06 | 中国华冶科工集团有限公司 | Inclined shaft derailing prevention device |
| CN103395432A (en) * | 2013-05-07 | 2013-11-20 | 铁法煤业（集团）有限责任公司晓南矿 | Mine inclined roadway buffer vehicle stopper |
| CN107054400A (en) * | 2017-04-28 | 2017-08-18 | 陕西航泰电气股份有限公司 | A kind of progressive buffer-type energy absorber and its application method |
| CN107719392A (en) * | 2017-10-31 | 2018-02-23 | 陕西航泰电气股份有限公司 | A kind of energy absorber of brake type with initial buffer function and the anti-race method of rubber-tired cart |
| CN107804340A (en) * | 2017-12-02 | 2018-03-16 | 西安科技大学 | A kind of Type Protection Device for Inclined Shaft Runaway Car energy-absorbing brake |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841399A (en) * | 1958-01-13 | 1960-07-13 | Strachan & Henshaw Ltd | Improvements in or relating to wagon arresting means |
| CN2288892Y (en) * | 1997-03-14 | 1998-08-26 | 张建军 | Mine normally closed type incline shaft monitor for preventing sliding down |
| CN2609801Y (en) * | 2002-11-06 | 2004-04-07 | 王世荣 | Step-by-step motor slide-down preventing device for mine incline shaft lift system |
| CN200995694Y (en) * | 2007-01-22 | 2007-12-26 | 陕西航泰电气有限公司 | Energy absorber |
| CN101592207A (en) * | 2009-07-02 | 2009-12-02 | 江西省煤炭工业科学研究所 | A kind of variable resistance dissipative energy absorber |
| CN201677893U (en) * | 2010-04-24 | 2010-12-22 | 徐州泰荣煤矿设备有限公司 | Buffer variable force energy-absorbing adjustable device for preventing tramcar of inclined shaft from sliding |
-
2010
- 2010-04-24 CN CN2010101706038A patent/CN102233884A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB841399A (en) * | 1958-01-13 | 1960-07-13 | Strachan & Henshaw Ltd | Improvements in or relating to wagon arresting means |
| CN2288892Y (en) * | 1997-03-14 | 1998-08-26 | 张建军 | Mine normally closed type incline shaft monitor for preventing sliding down |
| CN2609801Y (en) * | 2002-11-06 | 2004-04-07 | 王世荣 | Step-by-step motor slide-down preventing device for mine incline shaft lift system |
| CN200995694Y (en) * | 2007-01-22 | 2007-12-26 | 陕西航泰电气有限公司 | Energy absorber |
| CN101592207A (en) * | 2009-07-02 | 2009-12-02 | 江西省煤炭工业科学研究所 | A kind of variable resistance dissipative energy absorber |
| CN201677893U (en) * | 2010-04-24 | 2010-12-22 | 徐州泰荣煤矿设备有限公司 | Buffer variable force energy-absorbing adjustable device for preventing tramcar of inclined shaft from sliding |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395432A (en) * | 2013-05-07 | 2013-11-20 | 铁法煤业（集团）有限责任公司晓南矿 | Mine inclined roadway buffer vehicle stopper |
| CN103273943A (en) * | 2013-05-21 | 2013-09-04 | 大连交通大学 | Torque-changeable buffer power absorber |
| CN103381842A (en) * | 2013-07-25 | 2013-11-06 | 中国华冶科工集团有限公司 | Inclined shaft derailing prevention device |
| CN107054400A (en) * | 2017-04-28 | 2017-08-18 | 陕西航泰电气股份有限公司 | A kind of progressive buffer-type energy absorber and its application method |
| CN107054400B (en) * | 2017-04-28 | 2023-02-24 | 陕西航泰电气股份有限公司 | Progressive buffering type energy absorber and using method thereof |
| CN107719392A (en) * | 2017-10-31 | 2018-02-23 | 陕西航泰电气股份有限公司 | A kind of energy absorber of brake type with initial buffer function and the anti-race method of rubber-tired cart |
| CN107719392B (en) * | 2017-10-31 | 2024-02-06 | 陕西航泰电气股份有限公司 | Brake type energy absorber with initial buffering function and rubber-tyred vehicle anti-running method |
| CN107804340A (en) * | 2017-12-02 | 2018-03-16 | 西安科技大学 | A kind of Type Protection Device for Inclined Shaft Runaway Car energy-absorbing brake |
| CN107804340B (en) * | 2017-12-02 | 2023-05-16 | 西安科技大学 | Energy-absorbing brake for inclined shaft sports car protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102233884A (en) | Buffer variable force energy adsorption adjustable device for preventing vehicle from running in inclined shaft | |
| CN201677893U (en) | Buffer variable force energy-absorbing adjustable device for preventing tramcar of inclined shaft from sliding | |
| CN108725510B (en) | Anti-running self-adjusting buffer system for inclined roadway transportation and application thereof | |
| CN201647862U (en) | Crane and anti-back-tipping control system thereof | |
| CN106946118A (en) | A kind of building hoist tape jam detection and the cable pulley system of automatic protection | |
| CN202463840U (en) | Steel belt type buffering force-changing and energy-absorbing device for preventing vehicles from sliding in inclined shaft | |
| CN202670680U (en) | Flexibly-catching four-link damping type broken belt protecting system | |
| CN114561889A (en) | Stall protection device for trackless rubber-tyred vehicle | |
| CN110901686B (en) | Anti-sliding device | |
| CN103303336B (en) | Formula prevent-moving car inclined shaft skip and buffering alley stopping device are caught in side | |
| CN202574262U (en) | Normally closed run-off protection arrester | |
| CN110486404A (en) | A kind of initial pre-buffering clamping plate type energy absorber and energy-absorbing method | |
| CN212401183U (en) | Rope falling and noise preventing protection device of overhead passenger mechanism | |
| CN107719392B (en) | Brake type energy absorber with initial buffering function and rubber-tyred vehicle anti-running method | |
| CN208790977U (en) | A kind of automatic safety device when multi-rope friction hoisting machine pulleying, over-discharge | |
| CN211918668U (en) | Anti-sliding device | |
| CN202272598U (en) | Ceiling ejection preventing protection device for elevator car | |
| CN102582655A (en) | Steel belt type buffer variable force energy-absorbing device for preventing cart from running out for inclined shaft | |
| CN207565606U (en) | Play formula buffer stop to a kind of electropneumatic | |
| CN2583059Y (en) | Construction lifter load carrying ability limiting apparatus | |
| CN206783153U (en) | A kind of crane electric block fall protection equipment with buffer unit | |
| CN202106990U (en) | Mining catcher in inclined drift | |
| CN214217993U (en) | Tower crane protector for construction | |
| CN104163187B (en) | Fixed hydraulic buffer stop is parked applied to CRH EMUs | |
| CN206014299U (en) | A kind of underground coal mine haulage gear rope-loosing protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111109 |