CN105819320A - Adjustable hydraulic joint car stopping mechanism - Google Patents
Adjustable hydraulic joint car stopping mechanism Download PDFInfo
- Publication number
- CN105819320A CN105819320A CN201610417831.8A CN201610417831A CN105819320A CN 105819320 A CN105819320 A CN 105819320A CN 201610417831 A CN201610417831 A CN 201610417831A CN 105819320 A CN105819320 A CN 105819320A
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- China
- Prior art keywords
- traffic
- adjustable hydraulic
- holds
- holding
- combines
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/14—Applications of loading and unloading equipment
- B66B17/16—Applications of loading and unloading equipment for loading and unloading mining-hoist cars or cages
- B66B17/22—Securing vehicles in cars or cages
- B66B17/24—Securing vehicles in cars or cages mounted on the car or cage
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- Fluid-Damping Devices (AREA)
- Toys (AREA)
Abstract
The invention discloses an adjustable hydraulic joint car stopping mechanism. The adjustable hydraulic joint car stopping mechanism comprises two tracks fixed to a cage chassis, and guard rails installed on the inner sides of the tracks. Four adjustable hydraulic car stopping devices are installed at the two ends of the tracks, four sliding stopper damping bases are installed at the two ends of the guard rails, and a movable connecting rod is arranged on the tracks and can move between the sliding stopper damping bases which can limit the position of the movable connecting rod. Each adjustable hydraulic car stopping device comprises a hydraulic oil cylinder and a car stopping component connected with one end of a piston rod of the hydraulic oil cylinder, and moving and opening or closing of the car stopping components can be controlled. According to the adjustable hydraulic joint car stopping mechanism, by using the movable connecting rod and the sliding stopper damping bases in cooperation and adopting the adjustable hydraulic car stopping devices, two-way cage entry stopping and fixing of mine cars of different models in a cage can be achieved; regardless of special-shaped mine cars or fixed-shaped mine cars, or under the condition that the number of mine cars is changed, a stable and accurate fixing mode suitable for the practical situations of the mine cars can be provided.
Description
Technical field
The invention belongs to factories and miness technical field of transportation, be specifically related to a kind of adjustable hydraulic applied widely and combine the mechanism that holds up traffic.
Background technology
Cage hoisting mode is the lifting scheme that current mine at most uses, especially in heavy duty Lifting Convey, mine car is fixing in needing tank, the most easily causes winding cage to roll, adds tank door intensity and the restriction of structure, easily induction mine car takes off tank accident, at some private small mines, generally when special stowage, people's car tank altogether, using artificial support mode to carry out stable car, danger is higher.For the hoisting container of flexible cage guide, it also occur that hoisting container center of gravity deflection, cause cage guide rope in lifting process to beat the phenomenon that rolling is trembled, aggravate cage guide structural wear, add regular maintenance cost.Therefore, In-pot Car Retarder must be used in lifting process to carry out spacing to mine car in tank.The In-pot Car Retarder commonly used at present, owing to being the haulage vehicle exploitation for a certain specification, its pawl position of holding up traffic is all fixing, craft flexibility is poor, can only be suitable for the mine car of fixing model, when some coal mining car and mine platform lorry specification are more, specification due to various mine cars, model, size difference is relatively big, may be only available for the In-pot Car Retarder of fixing model mine car by helpless.At present, Multiple Type mine car or flat car (curable type and special-shaped mine car) that a kind of mechanism that holds up traffic can be suitable in China's mine hoisting system are still lacked.
Summary of the invention
For solving the problems referred to above, the invention discloses a kind of adjustable hydraulic and combine the mechanism that holds up traffic, it is possible to facilitate regulation to hold up traffic pawl position according to mine car wheelbase, meet the stop in cage of the multiple mine car and fix, adapt to various mine car specification.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of adjustable hydraulic combines the mechanism that holds up traffic, including two tracks being fixed on cage chassis, and it is arranged on two guard rails inside track, four adjustable hydraulic Obstruct apparatus are installed on described track, described adjustable hydraulic Obstruct apparatus is separately mounted to the two ends of two tracks, four sliding resistance device damping pedestals are installed on described guard rail, described sliding resistance device damping pedestal is separately mounted to the two ends of two guard rails, described track is provided with movable rod, described movable rod can move between sliding resistance device damping pedestal, described sliding resistance device damping pedestal can the position of restraint connecting rod, described adjustable hydraulic Obstruct apparatus includes hydraulic jack and the parts of holding up traffic being connected with hydraulic cylinder piston rod one end, described hydraulic cylinder piston rod is connected with functional unit, the parts that can control to hold up traffic move and opening and closing.
Further, the two ends of described two tracks are additionally provided with groove.
Further, being provided with slide block below described movable rod two ends, described slide block is arranged in orbit.
Further, described movable rod two ends are provided with the collision block for touching with damping pedestal.
Further, the parts of holding up traffic of described four adjustable hydraulic Obstruct apparatus are arranged between the sliding resistance device damping pedestal at two track two ends.
Further, parts are held up traffic described in for pawl of holding up traffic.
Further, described functional unit is handle, and described handle is connected with the piston rod other end.
Further, pawl of holding up traffic described in uses bonded mode to be connected with piston rod.
Further, described in pawl of holding up traffic be fixed on piston rod end by locking nut, and use split pin to fix.
Compared with prior art, the invention have the advantages that and beneficial effect:
The present invention is matched with sliding resistance device damping pedestal by movable rod, and have employed adjustable hydraulic Obstruct apparatus, it is possible to realize the various model mine cars of varying number in cage two-way enter tank stop fixing.The present invention uses hydraulic cylinder to adjust the relative position of pawl of holding up traffic by required wheelbase, and the opening and closing of pawl of being held up traffic by handle control, no matter it is special-shaped mine car or curable type mine car, or the quantity of change mine car, the present invention all can provide adapt with mine car practical situation to stablize accurate fixed form.Originally the mechanism that holds up traffic is widely used, and installs simple, and easy to adjust, maintenance cost is little.
Accompanying drawing explanation
Fig. 1 is the general assembly structural plan schematic diagram that adjustable hydraulic combines the mechanism that holds up traffic.
Fig. 2 is the general assembly structural facades schematic diagram that adjustable hydraulic combines the mechanism that holds up traffic.
Fig. 3 be in Fig. 2 along A-A to sectional structure schematic diagram.
Fig. 4 is movable rod and damping pedestal cooperation schematic diagram.
Fig. 5 is that adjustable hydraulic Obstruct apparatus assembles structure front elevation.
Fig. 6 is that adjustable hydraulic Obstruct apparatus assembles structure top view.
Reference numerals list:
1-cage chassis, 2-sliding resistance device damping pedestal, 3-groove, 4-adjustable hydraulic Obstruct apparatus, 5-track, 6-movable rod, 7-holds up traffic pawl, 8-guard rail, 9-handle, 10-piston rod, 11-locking nut, 12-split pin, 13-changes oil stop valve, 14-hydraulic cylinder, 15-bolt, 16-slide block.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is merely to illustrate the present invention rather than limits the scope of the present invention.It should be noted that the word "front", "rear" used in describing below, "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " interior " and " outward " refer respectively to the direction towards or away from particular elements geometric center.
Referring to Fig. 1～Fig. 6, the adjustable hydraulic that the present invention provides is combined the mechanism that holds up traffic and is mainly included cage chassis 1, is fixed on the One On The Chassis two the tank inner orbits 5 of cage, arranges adjustable hydraulic Obstruct apparatus 4 on the rail 5, the sliding resistance device damping pedestal 2 being arranged on two guard rails 8 inside track, being arranged on guard rail.Adjustable hydraulic Obstruct apparatus 4 has four, including two the adjustable hydraulic Obstruct apparatus 4 being arranged on two track left ends, and it being arranged on two adjustable hydraulic Obstruct apparatus 4 of two track right-hand members, on two tracks, adjustable hydraulic Obstruct apparatus 4 position is the most corresponding.Sliding resistance device damping pedestal 2 quantity is four, is also separately mounted to the two ends, left and right of two guard rails, and on two guard rails, sliding resistance device damping pedestal 2 position is the most corresponding.Track is provided with groove 3, and groove is used for pinning wheel.Preferably, groove is also four, is separately positioned on the two ends, left and right of two tracks, and groove is specifically located at the sliding resistance device at track two ends and damps between pedestal 2 close to the position damping pedestal.Being additionally provided with movable rod 6 on tank inner orbit, movable rod 6 is vertical with track, is provided with slide block 16 below described movable rod 6 two ends, and slide block is arranged in orbit, thus makes movable rod 6 to horizontally slip in orbit.On the left of movable rod, (up and down for direction shown in Fig. 1, lower same), the upper and lower two ends in two ends and right side respectively arrange a collision block up and down, for touching with damping pedestal, it is ensured that movable rod is big plane contact when with damping base into contact, and stress is steady.Obviously, the distance between upper end collision block and lower end collision block is equal with the distance that the sliding resistance device of relevant position on upper lower railway damps between pedestal 2.Movable rod can only slide between the sliding resistance device damping pedestal 2 at two ends, track left and right.
Specifically, as shown in Figure 5, Figure 6, piston rod 10 and the piston during each adjustable hydraulic Obstruct apparatus 4 all includes handle 9, hydraulic cylinder 14, hydraulic cylinder, pawl 7 of holding up traffic, locking nut 11, stop valve 13 of changing oil, bolt 15 and spring washer.Wherein, hydraulic cylinder 14 is fixed on cage track 5 by bolt and spring washer circle 15.Piston rod one end is connected with handle 9, and the other end is connected to pawl 7 of holding up traffic.Handle preferably employs bolt with piston rod and is connected, it is simple to dismounting.Pawl 7 of holding up traffic preferably employs bonded with piston rod 10, and pawl 7 of holding up traffic in this example is fixed on piston rod end by locking nut 11, and uses split pin 12 to fix.Turning handle 9 can drive pawl 7 of holding up traffic to rotate by piston rod, and flexible to operation, energy-conservation, maintenance cost is little.Holding up traffic when pawl is opened and leave track, the wheel on track will not be hindered to advance, vehicle can be through holding up traffic pawl position holding up traffic with movable rod and sliding resistance device damping pedestal；Holding up traffic and ride over track upper surface under pawl closure state it is thus possible to limiting wheel is advanced, the aperture of pawl of holding up traffic can be regulated by handle.Hydraulic oil in cylinder, equipped with 2 stop valves 13 of changing oil, can be closed by hydraulic cylinder 14 oil inlet and outlet.It should be noted that handle controls to be a kind of optimal way, those skilled in that art may be used without other functional unit (such as electric controling element) and control to hold up traffic the opening and closing of pawl.Additionally, hold up traffic, pawl is also relatively conventional parts of holding up traffic, it is also possible to pawl of holding up traffic replaces with other parts of holding up traffic being capable of rail vehicle barrier functionality as required.Adjustable hydraulic Obstruct apparatus 4 entirety especially hydraulic cylinder 14 upper surface is less than movable rod, and slide block also will not encounter hydraulic cylinder 14, thus the pawl of holding up traffic of adjustable hydraulic Obstruct apparatus 4 will not hinder movable rod movement in orbit in the on-state.In Fig. 1, on same track, the pawl 7 of holding up traffic in two adjustable hydraulic Obstruct apparatus 4 is arranged on two ends, left and right sliding resistance device on same track and damps between pedestal 2.
When loading curable type mine car, pawl 7 of holding up traffic is in normally open, when one or many curable type mine cars enter on the left of cage, wheel is after left side touches movable rod, movable rod is promoted to slide on the right side of cage along track, stopping when the collision block on movable rod touches two sliding resistances after devices damp pedestals 2 on the right side of cage, thus stop the wheel touching movable rod to be advanced, on rear side of curable type mine car, tramroad entrance left groove 3 is pinned.Curable type mine car gear is determined by resistance device damping base position sliding in the tank of right side two.Similarly, when one or many curable type mine cars enter on the right side of cage, movable rod is to cage left slide, collision block on movable rod stops after touching the sliding resistance device damping pedestal 2 being fixed on the left of cage on two tracks, thus stoping the wheel touching movable rod to be advanced, on rear side of curable type mine car, tramroad entrance right groove 3 is pinned.Curable type mine car gear is determined by resistance device damping base position sliding in the tank of left side two.Thus, coordinated with the sliding resistance device damping pedestal 2 of the left and right sides by movable rod, it is possible to the bidirectional obstruction realizing one or many curable type mine car is fixed.Sliding resistance device damping pedestal 2 and fit depressions, it is achieved stop location accurately.The position of left and right two sliding resistance device damping pedestals should be set up in advance according to mine car wheelbase.
When special-shaped vehicle enters tank or change curable type mine car quantity, owing to holding up traffic, stroke reduces, and now in tank, sliding resistance device device, not as the mechanism that mainly holds up traffic, but remains to play second safeguard protection effect, promotes the security performance of mechanism.Carry out stopping fixing to mine car now by adjusting hydraulic pressure pawl position control adjustable hydraulic Obstruct apparatus opening and closing of holding up traffic.Adjustable hydraulic Obstruct apparatus preboring hydraulic circuit, during use, electric or hand pressuring pump is connected with the stop valve of oil-in by snap joint, open oil inlet and outlet stop valve, to hydraulic cylinder fuel feeding, piston driving pawl of holding up traffic moves, and adjusts the relative position of pawl of holding up traffic by required wheelbase, after pawl of holding up traffic moves into place, close stop valve, remove pressuring pump.Turning handle can be held up traffic pawl by open and close.Therefore, when the special-shaped vehicle of loading, can regulate, by hydraulic cylinder, pawl position of holding up traffic as required, and turning handle closes pawl of holding up traffic, thus it is fixing that special-shaped vehicle is carried out stop.This kind of mode is applied equally to mine car or the mine platform lorry that specification changes.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also includes the technical scheme being made up of above technical characteristic combination in any.It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
- null1. an adjustable hydraulic combines the mechanism that holds up traffic，It is characterized in that: include two tracks being fixed on cage chassis、And it is arranged on two guard rails inside track，Four adjustable hydraulic Obstruct apparatus are installed on described track，Described adjustable hydraulic Obstruct apparatus is separately mounted to the two ends of two tracks，Four sliding resistance device damping pedestals are installed on described guard rail，Described sliding resistance device damping pedestal is separately mounted to the two ends of two guard rails，Described track is provided with movable rod，Described movable rod can move between sliding resistance device damping pedestal，Described sliding resistance device damping pedestal can the position of restraint connecting rod，Described adjustable hydraulic Obstruct apparatus includes hydraulic jack and the parts of holding up traffic being connected with hydraulic cylinder piston rod one end，Described hydraulic cylinder piston rod is connected with functional unit，The parts that can control to hold up traffic move and opening and closing.
- Adjustable hydraulic the most according to claim 1 combines the mechanism that holds up traffic, it is characterised in that: the two ends of described two tracks are additionally provided with groove.
- Adjustable hydraulic the most according to claim 1 and 2 combines the mechanism that holds up traffic, it is characterised in that: being provided with slide block below described movable rod two ends, described slide block is arranged in orbit.
- Adjustable hydraulic the most according to claim 1 and 2 combines the mechanism that holds up traffic, it is characterised in that: described movable rod two ends are provided with the collision block for touching with damping pedestal.
- Adjustable hydraulic the most according to claim 1 and 2 combines the mechanism that holds up traffic, it is characterised in that: the parts of holding up traffic of described four adjustable hydraulic Obstruct apparatus are arranged between the sliding resistance device damping pedestal of two track left and right sides.
- Adjustable hydraulic the most according to claim 1 and 2 combines the mechanism that holds up traffic, it is characterised in that parts of holding up traffic described in: are for pawl of holding up traffic.
- Adjustable hydraulic the most according to claim 6 combines the mechanism that holds up traffic, it is characterised in that: described functional unit is handle, and described handle is connected with the piston rod other end.
- Adjustable hydraulic the most according to claim 7 combines the mechanism that holds up traffic, it is characterised in that pawl of holding up traffic described in: uses bonded mode to be connected with piston rod.
- Adjustable hydraulic the most according to claim 8 combines the mechanism that holds up traffic, it is characterised in that pawl of holding up traffic described in: is fixed on piston rod end by locking nut, and uses split pin to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610417831.8A CN105819320B (en) | 2016-06-15 | 2016-06-15 | A kind of adjustable hydraulic combines the mechanism that holds up traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610417831.8A CN105819320B (en) | 2016-06-15 | 2016-06-15 | A kind of adjustable hydraulic combines the mechanism that holds up traffic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105819320A true CN105819320A (en) | 2016-08-03 |
| CN105819320B CN105819320B (en) | 2017-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610417831.8A Active CN105819320B (en) | 2016-06-15 | 2016-06-15 | A kind of adjustable hydraulic combines the mechanism that holds up traffic |
Country Status (1)
| Country | Link |
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| CN (1) | CN105819320B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108502689A (en) * | 2018-05-06 | 2018-09-07 | 徐州市工大三森科技有限公司 | The automatic antijoyride device of anticollision in tank |
| CN108946416A (en) * | 2018-08-16 | 2018-12-07 | 西安煤矿机械有限公司 | Vehicle safety positioning system and method in a kind of cage |
| CN110240050A (en) * | 2019-06-19 | 2019-09-17 | 中钢集团马鞍山矿山研究院有限公司 | A kind of adjustable hydraulic combines the mechanism that holds up traffic |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191213553A (en) * | 1911-05-11 | 1912-10-03 | Carl Notbohm | Improvements relating to Mechanism for Shifting Trucks and the like on to and from Mining Cages. |
| JP2000128466A (en) * | 1998-10-22 | 2000-05-09 | Hitachi Building Systems Co Ltd | Car stop device for dumb waiter |
| CN201095562Y (en) * | 2007-09-26 | 2008-08-06 | 扬州凯思特机械制造有限公司 | Ring chain tank feeding car puller |
| CN102826433A (en) * | 2012-09-13 | 2012-12-19 | 徐州市工大三森科技有限公司 | Self-locking car stopper in can |
| CN103121617A (en) * | 2013-02-20 | 2013-05-29 | 郑州煤炭工业(集团)有限责任公司 | Tramcar-blocking device inside cage |
| CN203199860U (en) * | 2012-09-08 | 2013-09-18 | 白银有色集团股份有限公司 | Cage car stopping device |
| CN203767822U (en) * | 2014-04-18 | 2014-08-13 | 陕西彬长文家坡矿业有限公司 | Connecting-rod-type car stopping device |
| CN204778253U (en) * | 2015-07-17 | 2015-11-18 | 山东加宁重工有限公司 | Car arrester in trolley -bus rubber wheel vehicle cage |
| CN205687374U (en) * | 2016-06-15 | 2016-11-16 | 水利部南京水利水文自动化研究所 | A kind of adjustable hydraulic combines the mechanism that holds up traffic |
-
2016
- 2016-06-15 CN CN201610417831.8A patent/CN105819320B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191213553A (en) * | 1911-05-11 | 1912-10-03 | Carl Notbohm | Improvements relating to Mechanism for Shifting Trucks and the like on to and from Mining Cages. |
| JP2000128466A (en) * | 1998-10-22 | 2000-05-09 | Hitachi Building Systems Co Ltd | Car stop device for dumb waiter |
| CN201095562Y (en) * | 2007-09-26 | 2008-08-06 | 扬州凯思特机械制造有限公司 | Ring chain tank feeding car puller |
| CN203199860U (en) * | 2012-09-08 | 2013-09-18 | 白银有色集团股份有限公司 | Cage car stopping device |
| CN102826433A (en) * | 2012-09-13 | 2012-12-19 | 徐州市工大三森科技有限公司 | Self-locking car stopper in can |
| CN103121617A (en) * | 2013-02-20 | 2013-05-29 | 郑州煤炭工业(集团)有限责任公司 | Tramcar-blocking device inside cage |
| CN203767822U (en) * | 2014-04-18 | 2014-08-13 | 陕西彬长文家坡矿业有限公司 | Connecting-rod-type car stopping device |
| CN204778253U (en) * | 2015-07-17 | 2015-11-18 | 山东加宁重工有限公司 | Car arrester in trolley -bus rubber wheel vehicle cage |
| CN205687374U (en) * | 2016-06-15 | 2016-11-16 | 水利部南京水利水文自动化研究所 | A kind of adjustable hydraulic combines the mechanism that holds up traffic |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108502689A (en) * | 2018-05-06 | 2018-09-07 | 徐州市工大三森科技有限公司 | The automatic antijoyride device of anticollision in tank |
| CN108502689B (en) * | 2018-05-06 | 2024-05-31 | 徐州市工大三森科技有限公司 | In-tank anti-collision automatic locking device |
| CN108946416A (en) * | 2018-08-16 | 2018-12-07 | 西安煤矿机械有限公司 | Vehicle safety positioning system and method in a kind of cage |
| CN110240050A (en) * | 2019-06-19 | 2019-09-17 | 中钢集团马鞍山矿山研究院有限公司 | A kind of adjustable hydraulic combines the mechanism that holds up traffic |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105819320B (en) | 2017-08-29 |
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