CN200942779Y - Completely controlled pneumatic locking decelerator - Google Patents

Abstract

A completely controlled pneumatic locking retarder, which relates to a retarder, aiming to solve the problem with existing controlled retarder that press rolling over the retarder by wheels is needed during position conversion of the oil cylinder, leading to corresponding loss of work, wherein lower end of the air cylinder is positioned in the support saddle (11); the lower sealing cover (12) is positioned on the support saddle (11) in the air cylinder (5); the gas nipple (3) is fixed on the upper sealing cover (4); the drawplate (2) is fastened on the gas lever (6); right end of the valve (9) is fixed in the through hole (20) in the air cylinder (5) and the support saddle (11); the lock tongue (10) is provided in the small-diameter hole (9-2) in the valve body (9); the valve cap (8) is fixed in the right end inside the valve body (9); the spring (21) is provided between the valve cap (8) and the lock tongue (10); air holes (9-3) are provided on the valve body (9). The utility can realize self-switch between working state and off working state without press rolling by wheels, and can reduce the number of retarder in service, thus can save the effective space in the track to improve the service efficiency of retarders.

Description

Controlled fully pneumatic locking slows down and pushes up

Technical field

The utility model relates to a kind of deceleration top.

Background technology

The China railways marshalling yard has a lot of speed-regulating types on the controlled top of microcomputer that adopted.In this speed-regulating type, mainly adopt vacuum to inhale following formula controlled deceleration top and the controlled deceleration of electric lorry enclosed top.Above-mentioned two kinds of controlled decelerations withstand on stand up position from sliding oil cylinder (to vehicle acting state, being mode of operation) position of falling that is transformed into sliding oil cylinder (do not do work or does very little work of resistance state vehicle, be off working state) switching process in, roll extrusion can realize to deceleration jacking row to need wheel.So just cause the acting loss of a round.In addition, the condition of service on above-mentioned two kinds of controlled deceleration tops is affected by environment very big, especially can have a strong impact on the normal use of system in the big area of temperature difference fluctuation.

The utility model content

The purpose of this utility model provides a kind of controlled fully pneumatic locking deceleration top, this deceleration top can solve vacuum and inhale following formula controlled deceleration top and the controlled deceleration of electric lorry enclosed top, in the position switching process of realizing sliding oil cylinder, need wheel to the roll extrusion of deceleration jacking row, thereby cause the acting loss problem and the condition of service big problem affected by environment of a round.

The utility model comprises housing and the sliding oil cylinder assembly set of captiveing joint with the bottom of housing; The utility model also comprises cylinder combination and pneumatic lock valve; Described cylinder combination is by cylinder, arm-tie, top cover labyrinth, lower sealing cover, vent plug, gas lever, valve is formed with the bearing of captiveing joint with housing, the lower end of cylinder is contained in the bearing, lower sealing cover is contained on the interior bearing of cylinder and with cylinder captives joint, the vent plug of captiveing joint with the lower end of gas lever is equipped with in the top of lower sealing cover, vent plug and cylinder bearing fit, top cover labyrinth is installed on the upper end in the cylinder, the lower end of valve is installed in the axially extending bore of top cover labyrinth, arm-tie is fastened on the gas lever and is positioned at the top of sliding oil cylinder assembly set, and the sidewall of cylinder and bearing is provided with coaxial through hole; Described pneumatic lock valve is made up of valve body, valve gap, spring and dead bolt, the right-hand member of valve body is installed in the described through hole, the inner chamber of valve body is provided with large diameter hole and the small diameter bore that is interconnected, the right-hand member of dead bolt is contained in the small diameter bore, dead bolt and valve body bearing fit, valve gap is installed on the left end in the valve body, between valve gap and the dead bolt spring is housed, and the sidewall of valve body is provided with the pore that communicates with large diameter hole.

The utlity model has following beneficial effect: one, the utility model need not both can realize by vehicle wheel rolling presses oneself's conversion of mode of operation and off working state, this deceleration top is inhaled the controlled top of following formula with vacuum and is compared with the controlled top of electric lorry enclosed, can reduce the usage quantity on the top of slowing down, thereby the available space in the saving station track, improved the service efficiency on the top of slowing down, save equipment investment and service expenditure, also reduced maintainer's work capacity simultaneously.Two, when vehicle involves or need the vehicle non-resistance to pass through, this deceleration top is in off working state, and the locking function of pneumatic lock valve can be guaranteed the safe, stable of top that slow down, and has guaranteed the safety of transportation-production, and saved locomotive traction power, improved grouping operation efficient.Three, the utility model utilize wind energy to make to slow down the top reach truly control fully (from locking, need not vehicle wheel rolling presses; From release, need not vehicle wheel rolling presses; Locking is low, and oil cylinder is locked in below the rail rail level, and is very little or do not contact with wheel contact), also having reduced the top of slowing down simultaneously to environment requirement, can become the renewal product on existing controlled top.

Description of drawings

Fig. 1 is an integral structure scheme drawing of the present utility model, and Fig. 2 is the A portion enlarged drawing of Fig. 1, and Fig. 3 is the B portion enlarged drawing of Fig. 1, and Fig. 4 is the C portion enlarged drawing of Fig. 1.

The specific embodiment

The specific embodiment one: in conjunction with Fig. 1～Fig. 4 present embodiment is described, present embodiment is made up of the housing 13 of captiveing joint with rail 101 by thru-bolt 30, the sliding oil cylinder assembly set 102 of captiveing joint with the bottom of housing 13 and cylinder combination 103 and pneumatic lock valve 104; Described cylinder combination 103 is by cylinder 5, arm-tie 2, top cover labyrinth 4, lower sealing cover 12, vent plug 7, gas lever 6, valve 3, nut 27 is formed with the bearing 11 of captiveing joint with housing 13, the lower end of cylinder 5 is contained in the bearing 11, lower sealing cover 12 is contained on the bearing 11 in the cylinder 5 and with cylinder 5 and is threaded, the vent plug 7 of captiveing joint with the lower end of gas lever 6 is equipped with in the top of lower sealing cover 12, vent plug 7 and cylinder 5 bearing fits, the top cover labyrinth 4 that is contained in upper end in the cylinder 5 is threaded with cylinder 5, the lower end of valve 3 is contained in the axially extending bore 4-1 of top cover labyrinth 4 and with top cover labyrinth 4 and is threaded, arm-tie 2 is contained on the gas lever 6 and is positioned at the top of sliding oil cylinder assembly set 102, arm-tie 2 is fastened on the gas lever 6 by nut 27, and the sidewall of cylinder 5 and bearing 11 is provided with coaxial through hole 20; Form air cavity by cylinder 5, top cover labyrinth 4, lower sealing cover 12, vent plug 7, gas lever 6 and valve 3; Described pneumatic lock valve 104 is made up of valve body 9, valve gap 8, spring 21 and dead bolt 10, the right-hand member of valve body 9 is installed in the described through hole 20, be provided with the large diameter hole 9-1 and the small diameter bore 9-2 that are interconnected in the valve body 9, the right-hand member of dead bolt 10 is contained in the small diameter bore 9-2, dead bolt 10 and valve body 9 bearing fits, valve gap 8 is contained in the left end in the valve body 9 and is threaded with valve body 9, between valve gap 8 and the dead bolt 10 spring 21 is housed, and the sidewall of valve body 9 is provided with the pore 9-3 that communicates with large diameter hole 9-1.

The specific embodiment two: in conjunction with Fig. 1 and Fig. 4 present embodiment is described, the sliding oil cylinder assembly set 102 of present embodiment is made up of the oil cylinder 19 that piston 17, speed valve 18, speed valve seat 23, pressure valve 15, backhaul valve plate 16, piston rod 14, spring 1, spring 2 26 and inner chamber are filled with fluid and nitrogen; The lower end of oil cylinder 19 is contained in the housing 13, captive joint with housing 13 in the lower end that is contained in the piston rod 14 in the oil cylinder 19, piston 17 be fixed on piston rod 14 the upper end and with oil cylinder 19 bearing fits, speed valve 18 is contained on the speed valve seat 23 and is positioned at the top of piston 17, pressure valve 15 is contained on the piston rod 14 of piston 17 lower surfaces, backhaul valve plate 16 is contained on the piston 17 between speed valve 18 and the pressure valve 15, piston 17 is provided with oilhole 17-1, between the inner groove 17-2 of speed valve 18 and piston 17 spring 1 is housed, between the shoulder 14-1 on pressure valve 15 and the piston rod 14 spring 2 26 is housed, described arm-tie 2 is positioned at the top of oil cylinder 19.Adopt said structure, have safe and reliable advantage.Other composition and annexation are identical with the specific embodiment one.

Principle of work is: the top of slowing down is in mode of operation: when humping of cars speed is lower than the critical speed of setting up on the top of slowing down, oil cylinder 19 is lower by the speed under the pressure wheel, the power of surging that the fluid of oil cylinder 19 epicoeles produces is not enough to speed valve 18 is closed, fluid flows in the oil cylinder cavity of resorption by the oilhole 17-1 on the piston 17, and the work of resistance is done to vehicle in the top of slowing down; When humping of cars speed is higher than the critical speed of setting up on the top of slowing down, oil cylinder 19 is relatively very high by the speed under the pressure wheel, the power of surging that the fluid of epicoele produces is closed speed valve 18, oil cylinder 19 continues to glide, upper cavity pressure increases rapidly, pressure valve 15 is opened, and braking work is done to vehicle in the top of slowing down, and reaches the purpose to car retardation; After wheel passes through the vertex of oil cylinder 19, compressed nitrogen expansions in the oil cylinder 19, cavity of resorption fluid is closed backhaul valve plate 16, and vertex is got back to the speed of setting in the top of slowing down.

When the scene does not need the deceleration top that vehicle is done work, pressurized air is fed in the epicoele of cylinder 5 by valve 3, gas promotes vent plug 7 to lower slider, drive gas lever 6 simultaneously and arm-tie 2 moves down, arm-tie 2 makes oil cylinder 19 to lower slider, behind the arrival locked position, removes source of the gas, it is that oil cylinder 19 is locked in low level that dead bolt 10 is locked in low level with vent plug 7, and the peacetime state on the top of slowing down is a locking states.

When the top need be slowed down when vehicle done work in the scene, pressurized air is passed in the valve body 9 by the gas port 9-3 on the valve body 9, dead bolt 10 overcomes spring force, be moved to the left, the swelling force that is compressed nitrogen in the oil cylinder 19 drives arm-tie 2, gas lever 6 and vent plug 7 and is moved upward to vertex, can do work to vehicle in the top of slowing down; When not needing to do work, remove the source of the gas of pneumatic lock valve 104, the valve on the cylinder combination 103 3 is fed pressurized air, repeat above-mentioned locking process.

Claims (2)

1, a kind of controlled fully pneumatic locking deceleration is pushed up, and it comprises housing (13) and the sliding oil cylinder assembly set (102) of captiveing joint with the bottom of housing (13); It is characterized in that it also comprises cylinder combination (103) and pneumatic lock valve (104); Described cylinder combination (103) is by cylinder (5), arm-tie (2), top cover labyrinth (4), lower sealing cover (12), vent plug (7), gas lever (6), valve (3) is formed with the bearing (11) of captiveing joint with housing (13), the lower end of cylinder (5) is contained in the bearing (11), the bearing (11) that lower sealing cover (12) is contained in the cylinder (5) upward and with cylinder (5) is captiveed joint, the vent plug (7) of captiveing joint with the lower end of gas lever (6) is equipped with in the top of lower sealing cover (12), vent plug (7) and cylinder (5) bearing fit, top cover labyrinth (4) is installed on the upper end in the cylinder (5), the lower end of valve (3) is installed in the axially extending bore (4-1) of top cover labyrinth (4), arm-tie (2) is fastened on the top that sliding oil cylinder assembly set (102) were gone up and be positioned to gas lever (6), and the sidewall of cylinder (5) and bearing (11) is provided with coaxial through hole (20); Described pneumatic lock valve (104) is by valve body (9), valve gap (8), spring (21) and dead bolt (10) are formed, the right-hand member of valve body (9) is installed in the described through hole (20), the inner chamber of valve body (9) is provided with large diameter hole (9-1) and the small diameter bore (9-2) that is interconnected, the right-hand member of dead bolt (10) is contained in the small diameter bore (9-2), dead bolt (10) and valve body (9) bearing fit, valve gap (8) is installed on the left end in the valve body (9), between valve gap (8) and the dead bolt (10) spring (21) is housed, the sidewall of valve body (9) is provided with the pore (9-3) that communicates with large diameter hole (9-1).

2, the fully controlled pneumatic locking according to claim 1 top of slowing down is characterized in that described sliding oil cylinder assembly set (102) is made up of the oil cylinder (19) that piston (17), speed valve (18), speed valve seat (23), pressure valve (15), backhaul valve plate (16), piston rod (14), spring one (25), spring two (26) and inner chamber are filled with fluid and nitrogen; The lower end of oil cylinder (19) is contained in the housing (13), captive joint with housing (13) in the lower end that is contained in the piston rod (14) in the oil cylinder (19), piston (17) be fixed on piston rod (14) the upper end and with oil cylinder (19) bearing fit, speed valve (18) is contained in the top that piston (17) were gone up and be positioned to speed valve seat (23), pressure valve (15) is contained on the piston rod (14) of piston (17) lower surface, backhaul valve plate (16) is contained on the piston (17) between speed valve (18) and the pressure valve (15), piston (17) is provided with oilhole (17-1), between the inner groove (17-2) of speed valve (18) and piston (17) spring one (25) is housed, between the shoulder (14-1) on pressure valve (15) and the piston rod (14) spring two (26) is housed, described arm-tie (2) is positioned at the top of oil cylinder (19).

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