CN2197384Y - Hydraulic rail lifting apparatus with piston pump - Google Patents

Abstract

The utility model relates to a hydraulic road lifting machine driven by a manual double-action plunger piston pump. The utility model provides a road lifting machine having the advantages of high operation efficiency, simple and compact structure, light self-weight and good using performance. The utility model is composed of a working cylinder, an oil box, a double-action plunger pump, an oil path, a control valve and an operating mechanism, wherein, the double-action plunger pump is composed of a plunger piston, a split type pump body and a driving piece. The split type pump body is provided with a left and a right sleeves which are positioned in the oil box and are in the same shaft line. Both ends of the plunger piston are arranged in the left and the right sleeves of the split type pump body. Both of the two ends of the plunger piston and the split type pump body form a left and a right working chambers, and the middle sections of the left and the right working chambers are provided with racks. The driving piece is composed of a rocking arm, a rocking arm shaft and a gear, wherein, the shaft line of the rocking arm shaft is perpendicular to the shaft line of the plunger piston, and the rocking arm and the gear are fixedly arranged on the rocking arm shaft. The gear is engaged with a rack on the plunger piston.

Description

Hydraulic rail lifting apparatus with piston pump

The utility model belongs to the railway track construction equipment, the Hydraulic Track Lifting And Lining Machine that particularly a kind of manual double-action plunger pump drives.

When rolling stock moves on line track, circuit is produced vertically and the active force of horizontal direction, under the effect of these two kinds of power, track is subjected to displacement, thereby has increased the running resistance of rolling stock, influenced road speed and traffic safety.For recovering the normal position of line track, generally passed through track lining, the position of track in vertical plane and horizontal plane adjusted.Two kinds of methods of adjustment are arranged at present, a kind of maintenance car that adopts large-scale maintenance machinery or have the track lifting and lining machine structure, another kind then adopts small-sized hand-operated Hydraulic Track Lifting And Lining Machine, this small-sized hand-operated Hydraulic Track Lifting And Lining Machine adopts manual single plunger pump or manually duplex plunger pump driving usually, as Chinese patent 85105828 disclosed hydraulic track-switching devices, circulation plunger displacement pump of the every swing of the former rocking arm has only one to press oily impulse stroke, operating efficiency is low, though the latter makes circulation of the every swing of rocking arm, two plunger displacement pumps are finished one respectively and are pressed oily impulse stroke, but owing to adopted; rocker arm shaft; the duplex plunger pump that rocking bar and connecting rod drive drives; not only make complex structure; huge; from heavy by rocking arm; and two plunger displacement pumps are connected with rocking bar through connecting rod respectively; when plunger moves back and forth in cylinder body; the cylinder body internal perisporium is produced the side direction active force, the plunger displacement pump condition of work is worsened, influenced the functional performance of track lifting and lining machine.

The purpose of this utility model provides a kind of operating efficiency height, Hydraulic Track Lifting And Lining Machine simple in structure, compact, that drive from the good manual double-action plunger pump of heavy and light, functional performance.

The utility model is made up of working cylinder, fuel tank, double-action plunger pump, oil circuit, control valve and executing agency, and working cylinder is made up of piston and cylinder body, and piston places in the cylinder body, and cylinder body is divided into rod chamber and rodless cavity; Fuel tank is positioned on the working cylinder cylinder body; Double-action plunger pump is made up of plunger, the split type pump housing and actuator, the split type pump housing is the left and right cover of coaxial line that is positioned at fuel tank, the two ends of plunger place in the left and right cover of the split type pump housing, and making its two ends constitute left and right working chamber respectively and between the split type pump housing, its stage casing is provided with tooth bar; Actuator is made up of rocking arm, rocker arm shaft and gear, and the axis of rocker arm shaft is vertical with plunger axis, and rocking arm and gear are fixedly mounted on the rocker arm shaft, the tooth bar engagement on gear and the plunger; Oil circuit is made of the interface channel of the product of the drainback passage between two output channels, working cylinder rodless cavity and the fuel tank between two input channels, the left and right working chamber of double-action plunger pump and the working cylinder rodless cavity and overflow ducts and working cylinder rod chamber and fuel tank between left and right working chamber of double-action plunger pump and the fuel tank; Control valve is by laying respectively at one way valve on input, the output channel, being positioned at the oil return valve on the drainback passage and the overflow valve that is positioned on the overflow ducts constitutes; Executing agency is made up of chassis, driving lever and track lifting wheel, and an end and working cylinder cylinder body one end on chassis are hinged, and the other end and the driving lever on chassis are hinged, and the other end of driving lever is hinged through the piston rod of bearing pin and working cylinder piston, and the wheel that raises track is housed on bearing pin.

Because the utility model has adopted manual double-action plunger pump, and make double-action plunger pump be positioned at fuel tank, guaranteed the lubricated of movement parts, the plunger reciprocating motion that utilizes double-action plunger pump is that impulse stroke substitutes duplex plunger pump, not only simple in structure, compact, from heavy and light, volume is little, and owing to adopt the plunger of the direct geared drive band tooth bar that is installed on the rocker arm shaft reciprocating, eliminated the side direction active force that when plunger moves back and forth the cylinder body internal perisporium is produced, improve the condition of work of plunger displacement pump and the functional performance of Hydraulic Track Lifting And Lining Machine, thereby reached the purpose of this utility model.

Fig. 1 is the utility model structural representation elevation

Fig. 2 is the utility model structural representation vertical view

Fig. 3 is A-O-O ' among Fig. 2-B sectional drawing

Fig. 4 is C-O-O ' among Fig. 3-D sectional drawing

Fig. 5 is E-O-O ' among Fig. 3-D sectional drawing

Fig. 6 is a F-F sectional drawing among Fig. 1

Fig. 7 is a G-G sectional drawing among Fig. 1

Fig. 8 is the utility model hydraulic system principle figure

Below in conjunction with accompanying drawing the utility model is further elaborated.

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model is made up of working cylinder 1, fuel tank 2, double-action plunger pump 3, oil circuit 4, control valve 5 and executing agency 6, working cylinder 1 is made up of piston 11 and cylinder body 12, cylinder body 12 has main body 121, left cylinder cap 122 and the right cylinder cap 123 of band through hole 1211, left side cylinder cap 122 is provided with the lug 1222 of band radial direction through hole 1221, right cylinder cap 123 is provided with axially extending bore 1231, and left and right cylinder cap 122,123 is installed in the two ends of the through hole 1211 of main body 121 respectively; Piston 11 is made of piston head 111 and piston rod 112, the external diameter of the external diameter of piston head 111 and piston rod 112 matches with through hole 1211 and 1231 respectively, the outer end of piston rod 112 is provided with the lug 1122 of band radial peg axis hole 1121, piston 11 places in the cylinder body 12, and cylinder body 12 is divided into rod chamber 124 and rodless cavity 125; Fuel tank 2 is provided with tank filler sleeve 21 for the main body 121 by cylinder body 12 extends upward the hollow housing that constitutes above fuel tank 2; Double-action plunger pump 3 is by plunger 31, the split type pump housing 32 and actuator 33 constitute, the split type pump housing 32 is for being positioned at fuel tank 2 and being from fuel tank 2 left sides, the coaxial line left side that right side wall extends internally, right cover 321,322, a left side, right cover 321,322 outboard end is provided with a left side, right Seal Oil stifled 323,324, plunger 31 is a Cylinder, its two ends place the left side of the split type pump housing 32 respectively, right cover 321, in 322, and make its two ends respectively and the formation left side between the split type pump housing 32, right working chamber 34,35, its stage casing is provided with tooth bar 311, actuator 33 is by rocking arm 331; rocker arm shaft 332 and gear 333 formed; rocker arm shaft 332 be installed in fuel tank 2 before; on the rear wall; and make its front end 3321 stretch out outside the fuel tank 2; rocking arm 331 is provided with extension bar hole 3311; it is installed on the front end 3321 of rocker arm shaft 332; gear 333 is preferably the fan tooth; it is installed in the stage casing of rocker arm shaft 332, and makes the gear teeth on it mesh with the tooth bar on the plunger 31 311; As shown in Figure 3, the axis of the split type pump housing 32 is parallel with the axis of working cylinder 1, the axis normal of the axis of rocker arm shaft 332 and plunger 31; As shown in Figure 8, oil circuit 4 is by two input channels 41,42, article two, output channel 43,44, drainback passage 45, overflow ducts 46 and interface channel 47 constitute, interface channel 47 is between the rod chamber 124 and fuel tank 2 of working cylinder 1, output channel 43,44 lay respectively at the left side of double-action plunger pump 3, right working chamber 34,35 and the rodless cavity 125 of working cylinder 1 between, input channel 41,42 lay respectively at the left side of double-action plunger pump 3, right working chamber 34,35 and fuel tank 2 between, it is respectively equipped with and is positioned at a left side, right Seal Oil stifled 323, central blind hole 3231 on 324,3241 and annular groove 3232,3242, drainback passage 45 is between the rodless cavity 125 and fuel tank 2 of working cylinder 1, and overflow ducts 46 is positioned at output channel 43,44 and fuel tank 2 between; Each passage of oil circuit 4 is arranged on the cylinder body 12 and extended fuel tank 2 thereof of working cylinder 1; Control valve 5 is by laying respectively at one way valve 51,52,53,54 on input, the output channel 41,42,43,44, being positioned at the oil return valve 55 on the drainback passage and the overflow valve 56 that is positioned on the overflow ducts 46 constitutes, as shown in Figure 7, oil return valve 55 is made of handle 551, eccentric wheel 552, pin 553, push rod 554 and one way valve 555; Executing agency 6 is by chassis 61, driving lever 62 and the wheel 63 that raises track, one end on chassis 61 is provided with the lug 612 of band pin-and-hole 611, and the radial direction through hole on the lug 1222 of bearing pin 64 and left cylinder cap 122 1221 is hinged with the cylinder body 12 of working cylinder 1, the other end on chassis 61 is provided with the lug 614 of band pin-and-hole 613 and hinged with an end of driving lever 62 through bearing pin 65, the other end of driving lever 62 is provided with the lug 622 of band pin-and-hole 621, and the pin-and-hole on the lug 1122 of bearing pin 66 and piston rod 112 1121 is hinged with piston rod 112, and the wheel 63 that raises track is rotatably installed on the bearing pin 66.

During use, handle the handle 551 of oil return valve 55, make oil return valve 55 in the closed position, operating rock arm 331, and through rocker arm shaft 332, tooth bar 311 on gear 333 and the plunger 31, make the left side of plunger 31 at the split type pump housing 32, right cover 321, move back and forth in 322, and make the left working chamber 34 of two use plunger displacement pumps 3 compress intracavity liquids, after the supercharging respectively in the rodless cavity 125 of one way valve 53 and output channel 43 input service cylinders 1, right working chamber 35 volumes of double-action plunger pump 3 increase, liquid in the rod chamber 124 of fuel tank 2 and working cylinder 1 is through input channel 42, the annular groove 3242 of Seal Oil stifled 324, central blind hole 3241 and one way valve 52 enter in the right working chamber 34, and so forth, the rodless cavity 125 interior fluid pressures of working cylinder 1 are increased gradually, the piston 11 of working cylinder 1 is extrapolated towards cylinder body 12, cylinder body 12 rotates counterclockwise around bearing pin 64, and driving lever 62 is clockwise rotated around bearing pin 65, the hinge bearing pin 66 of piston rod 112 and driving lever 62 and on track lifting wheel 63 raise, during track lifting, the wheel 63 that will raise track places at the bottom of the rail, during track lining, the wheel 63 that will raise track places the rail bottom side.

When operation finishes, open oil return valve 55, make the rodless cavity 125 interior liquid of working cylinder 1 go into fuel tank 2 45 times through oil return valve 55 and drainback passage.

Internal pressure increases when system, and when surpassing the limit value of overflow valve 56, overflow valve 56 is opened, and makes the rodless cavity 125 interior pressure fluids of working cylinder 1 flow into fuel tanks 2, system's release through overflow valve 56 and overflow ducts 46.

Claims (4)

1, the Hydraulic Track Lifting And Lining Machine of manual double-action plunger pump driving, it is made up of working cylinder, fuel tank, pump, oil circuit, control valve and executing agency, working cylinder is made up of piston and cylinder body, one end of piston and cylinder body is respectively equipped with pin-and-hole, piston places in the cylinder body, and cylinder body is divided into rod chamber and rodless cavity; Fuel tank is positioned on the working cylinder cylinder body; Oil circuit is made up of pump input channel, pump output channel, drainback passage, overflow ducts and interface channel; Control valve is made up of input, one way valve, oil return valve on the drainback passage and the overflow valve on the overflow ducts on the output channel; Executing agency is by the chassis, the driving lever and the wheel that raises track are formed, one end on chassis and an end of working cylinder cylinder body are hinged, the other end and the driving lever on chassis are hinged, the other end of driving lever is hinged through the piston rod of bearing pin and working cylinder piston, and the wheel that raises track is housed on bearing pin, it is characterized in that described pump is a double-action plunger pump, it is by plunger, the split type pump housing and actuator are formed, the split type pump housing is a coaxial line left side that is positioned at fuel tank, right cover, the two ends of plunger place the left side of the split type pump housing, in the right cover, and make its two ends constitute a left side respectively and between the split type pump housing, right working chamber, its stage casing is provided with tooth bar; Actuator is made up of rocking arm, rocker arm shaft and gear, and the axis of rocker arm shaft is vertical with plunger axis, and rocking arm and gear are fixedly mounted on the rocker arm shaft, the tooth bar engagement on gear and the plunger; Input channel is two passages between left and right working chamber of double-action plunger pump and fuel tank; Output channel and the two passes between left and right working chamber of double-action plunger pump and working cylinder rodless cavity.

2, the Hydraulic Track Lifting And Lining Machine of manual double-action plunger pump driving according to claim 1 is characterized in that described working cylinder cylinder body and fuel tank are siamese part; The left and right cover of the split type pump housing of double-action plunger pump for extending internally from the left and right sidewall of fuel tank.

3, the Hydraulic Track Lifting And Lining Machine of manual double-action plunger pump driving according to claim 1 and 2 is characterized in that the axis of described double-action plunger pump is parallel to the axis of working cylinder.

4, the Hydraulic Track Lifting And Lining Machine that drives of manual double-action plunger pump according to claim 3 is characterized in that being provided with Seal Oil in the left and right cover outside of the split type pump housing of double-action plunger pump blocks up; Article two, input channel has respectively and is positioned at central blind hole and the annular groove of left and right Seal Oil on stifled.

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