CN214837469U - Portable hydraulic pump for filling hydraulic oil to hydraulic turnout tamping machine - Google Patents

Abstract

The utility model discloses a portable hydraulic pump for hydraulic switch tamping tool filling hydraulic oil, include hydraulic pump casing, pivot, two vane plates, two connecting axles, advance oil pipe, go out oil pipe, rotary driving motor, operating panel and supporting structure. The portable hydraulic pump utilizes the two blade plates, the rotating shaft and the two connecting shafts to divide a cylindrical cavity in the hydraulic pump shell into an oil suction cavity communicated with the oil inlet pipe and an oil discharge cavity communicated with the oil outlet pipe, so that the oil suction cavity is ensured to periodically suck oil from small to large, then the oil discharge cavity periodically discharges oil from large to small, and low oil is conveyed to a high position; the rotating shaft and the two blade plates are attached to the shell of the hydraulic pump, so that gap leakage is prevented, and the efficiency of the portable hydraulic pump is improved; utilize supporting structure to support advancing oil pipe, need not that operating personnel is hand, prevent simultaneously that this portable hydraulic pump from askewly falling because of the work vibrations.

Description

Portable hydraulic pump for filling hydraulic oil to hydraulic turnout tamping machine

Technical Field

The utility model relates to a hydraulic pump, especially a portable hydraulic pump for hydraulic switch tamping tool filling hydraulic oil.

Background

When the hydraulic switch tamping tool is filled with hydraulic oil, the hydraulic switch tamping tool is poured by a barrel or an old piston oil pumping mode is used, so that not only is the operating personnel easily exhausted, but also the efficiency is slow. Therefore, a portable hydraulic pump for filling hydraulic oil into the hydraulic turnout tamping machine needs to be designed, the use efficiency is improved, the labor intensity of an operator is reduced, and meanwhile, the oil can be sucked out when the oil is excessively filled.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model provides a portable hydraulic pump of hydraulic oil is filled to hydraulic switch tamping tool, can improve the availability factor of pump, reduces operator's intensity of labour, can be simultaneously with fluid suction when refueling excessively.

The technical scheme is as follows: the utility model provides a portable hydraulic pump for filling hydraulic oil into a hydraulic turnout tamping machine, which comprises a hydraulic pump shell, a rotating shaft, two blade plates, two connecting shafts, an oil inlet pipe, an oil outlet pipe, a rotary driving motor, an operating panel and a bracket structure;

a through groove is formed in the rotating shaft along the diameter direction, and the rotating shaft is divided into two side columns by the through groove; the two connecting shafts are coaxially fixed on the front side surface and the rear side surface of the rotating shaft respectively and are used for connecting the two side columns; a columnar cavity is arranged in the hydraulic pump shell; a connecting shaft groove is formed in the eccentric position on the rear side face of the columnar cavity, and a connecting shaft hole corresponding to the connecting shaft groove is formed in the front side face of the columnar cavity; the connecting shaft at the rear side is rotatably arranged in the connecting shaft groove, the connecting shaft at the front side is rotatably arranged in the connecting shaft hole, and a sealing ring is arranged between the connecting shaft and the connecting shaft hole; the front side surface and the rear side surface of the rotating shaft are respectively attached to the front side surface and the rear side surface of the columnar cavity, and the circumferential surface of the rotating shaft is in line contact with the circumferential surface of the columnar cavity; the two blade plates are inserted in the through grooves; a compression spring is arranged between the two blade plates; two ends of the compression spring are respectively pressed on the insertion side edges of the two blade plates, so that the extending side edges of the two blade plates are attached to the circumferential surface of the cylindrical cavity; the edges of the front side and the rear side of the two blade plates are respectively attached to the front side and the rear side of the columnar cavity; a gear shaft is coaxially fixed on the front end surface of the connecting shaft at the front side; a driven bevel gear is arranged on the gear shaft; the rotary driving motor is arranged on the front side surface of the hydraulic pump shell, and a driving bevel gear meshed with the driven bevel gear is arranged on an output shaft of the rotary driving motor; a protective cover is fixed on the front side surface of the hydraulic pump shell, and the rotary driving motor, the driven bevel gear and the driving bevel gear are all positioned in the protective cover; the oil outlet pipe is fixed on the hydraulic pump shell above the linear contact position of the rotating shaft and the columnar cavity in a communicating manner; the upper bracket structure of the hydraulic pump shell is vertically and fixedly arranged below the linear contact position of the rotating shaft and the columnar cavity, and is arranged on the oil inlet pipe and used for supporting the oil inlet pipe; the controller drives the rotary driving motor to rotate forward and backward through the rotary motor driving circuit; the operation panel is arranged on the front side surface of the protective cover; the operation panel is provided with a forward rotation key, a reverse rotation key and a stop key which are electrically connected with the controller.

Furthermore, a guide hole is arranged on the insertion side edge of one of the blade plates, and a guide column with one end part slidably mounted on the guide hole is fixed on the insertion side edge of the other blade plate; the compression spring is sleeved on the guide post.

Furthermore, the extending side edges of the two blade plates are provided with a wear-resistant strip, the wear-resistant strip is attached to the circumferential surface of the cylindrical cavity, and the pressing edge of the wear-resistant strip is an arc-shaped chamfer.

Further, a handle is fixed to the upper side of the hydraulic pump housing.

Furthermore, a hose is installed on the pipe orifice of the oil outlet pipe in a butt joint mode through a mounting flange.

Further, the support structure comprises a mounting ring, four supporting tubes, four telescopic rods, four anti-skidding sleeves and a support adjusting mechanism;

the mounting ring is sleeved and fixed on the oil inlet pipe; the four supporting tubes are hinged on the outer side surface of the mounting ring at intervals; the upper ends of the four telescopic rods extend into the four supporting tubes respectively, and the lower ends of the four telescopic rods are fixed with anti-skidding sleeves respectively; a supporting pipe threaded hole is formed in each of the four supporting pipes; a fastening bolt is screwed in each supporting tube threaded hole in a threaded manner, and the end part of the fastening bolt is used for pressing the telescopic rod; the support adjusting mechanism is arranged below the mounting ring and used for synchronously adjusting the angles of the four supporting tubes.

Furthermore, the support adjusting mechanism comprises an adjusting ring, four adjusting rods and an adjusting bolt; the adjusting ring is sleeved on the oil inlet pipe below the mounting ring; the upper ends of the four adjusting rods are hinged on the outer side surface of the adjusting ring at intervals, and the lower ends of the four adjusting rods are respectively hinged on the supporting tubes on the corresponding sides; an adjusting ring threaded hole is formed in the adjusting ring, the adjusting bolt is screwed in the adjusting ring threaded hole, and the end portion of the adjusting bolt is used for being pressed on the oil inlet pipe, so that the adjusting ring is fixed.

Furthermore, a sealing wafer is fixed at the lower pipe opening of the oil inlet pipe in a sealing way; an extension pipe hole is arranged on the sealing wafer; an extension pipe is inserted in the extension pipe hole; a snap ring is fixed on the outer edge of the mouth of the extending end of the extension pipe, and the lower side surface of the snap ring is used for pressing the upper side surface of the sealing wafer; an annular baffle is fixed on the outer edge of the lower pipe orifice of the extension pipe, and a plurality of support columns are arranged on the lower side surface of the annular baffle at intervals.

Furthermore, a sealing ring pressed on the inner wall of the oil inlet pipe is fixed on the outer edge of the buckle ring; and a sealing ring pressed on the outer wall of the extension pipe is fixed on the hole wall of the extension pipe hole.

Furthermore, an oil groove communicated with the oil outlet pipe is arranged on the hydraulic pump shell above the linear contact position of the rotating shaft and the columnar cavity, and an oil groove communicated with the oil inlet pipe is arranged on the hydraulic pump shell below the linear contact position of the rotating shaft and the columnar cavity.

Compared with the prior art, the utility model, its beneficial effect is: the cylindrical cavity in the hydraulic pump shell is divided into an oil suction cavity communicated with the oil inlet pipe and an oil discharge cavity communicated with the oil outlet pipe by the two blade plates, the rotating shaft and the two connecting shafts, so that the oil suction cavity is ensured to periodically suck oil from small to large, then the oil discharge cavity periodically discharges oil from large to small, and low oil is conveyed to a high position; the rotating shaft and the two blade plates are attached to the hydraulic pump shell, so that gap leakage is prevented, and the efficiency of the portable hydraulic pump for filling hydraulic oil into the hydraulic turnout tamping machine is improved; the sealing ring is used for preventing oil from leaking out of the hydraulic pump shell; the compression spring is utilized to ensure that the edges of the two blade plates are always attached to the inner surface of the hydraulic pump shell, so that the oil discharge cavity is prevented from being communicated with the oil suction cavity; the forward rotation key, the reverse rotation key and the stop key are used for controlling the rotary driving motor to start and stop or rotate forward and backward through the controller; the oil inlet pipe is supported by the support structure, an operator does not need to hold the portable hydraulic pump by hands, and the portable hydraulic pump for filling hydraulic oil into the hydraulic turnout tamping machine is prevented from tilting due to working vibration.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a partial cross-sectional view of the present invention;

fig. 4 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1-4, the utility model provides a pair of portable hydraulic pump for hydraulic switch tamping tool filling hydraulic oil includes: the hydraulic pump comprises a hydraulic pump shell 1, a rotating shaft 22, two vane plates 23, two connecting shafts 24, an oil inlet pipe 8, an oil outlet pipe 4, a rotary driving motor 31, an operation panel 28 and a support structure;

a through groove 33 is formed in the rotating shaft 22 along the diameter direction, and the rotating shaft 22 is divided into two side columns by the through groove 33; two connecting shafts 24 are coaxially fixed on the front and rear side faces of the rotating shaft 22 respectively and used for connecting two side columns; a columnar cavity is arranged in the hydraulic pump shell 1; a connecting shaft groove is formed in the eccentric position on the rear side face of the columnar cavity, and a connecting shaft hole corresponding to the connecting shaft groove is formed in the front side face of the columnar cavity; the connecting shaft 24 at the rear side is rotatably arranged in the connecting shaft groove, the connecting shaft 24 at the front side is rotatably arranged in the connecting shaft hole, and a sealing ring is arranged between the connecting shaft 24 and the connecting shaft hole; the front side surface and the rear side surface of the rotating shaft 22 are respectively attached to the front side surface and the rear side surface of the columnar cavity, and the circumferential surface of the rotating shaft 22 is in line contact with the circumferential surface of the columnar cavity; the two blade plates 23 are inserted into the through groove 33; a hold-down spring 27 is installed between the two vane plates 23; the two ends of the compression spring 27 are respectively pressed on the insertion side edges of the two blade plates 23, so that the extending side edges of the two blade plates 23 are attached to the circumferential surface of the cylindrical cavity; the edges of the front side and the rear side of the two vane plates 23 are respectively attached to the front side and the rear side of the columnar cavity; a gear shaft is coaxially fixed to the front end surface of the front connecting shaft 24; a driven bevel gear 29 is mounted on the gear shaft; a rotation driving motor 31 is installed on the front side surface of the hydraulic pump housing 1, and a driving bevel gear 30 engaged with the driven bevel gear 29 is installed on the output shaft of the rotation driving motor 31; a protective cover 2 is fixed on the front side surface of the hydraulic pump housing 1, and a rotary driving motor 31, a driven bevel gear 29 and a driving bevel gear 30 are all positioned in the protective cover 2; the oil outlet pipe 4 is fixed on the hydraulic pump shell 1 above the linear contact position of the rotating shaft 22 and the columnar cavity in a communicating manner; the oil inlet pipe 8 is vertically communicated and fixed on the hydraulic pump shell 1 below the linear contact position of the rotating shaft 22 and the columnar cavity; the support structure is arranged on the oil inlet pipe 8 and used for supporting the oil inlet pipe 8; a controller and a rotary motor driving circuit electrically connected with the controller are arranged in the protective cover 2, and the controller drives the rotary driving motor 31 to rotate forward and backward through the rotary motor driving circuit; an operation panel 28 is mounted on the front side surface of the protection cover 2; the operation panel 28 is provided with a normal rotation button, a reverse rotation button, and a stop button electrically connected to the controller.

The two vane plates 23, the rotating shaft 22 and the two connecting shafts 24 are utilized to divide a cylindrical cavity in the hydraulic pump shell 1 into an oil suction cavity communicated with the oil inlet pipe 5 and an oil discharge cavity communicated with the oil outlet pipe 4, so that the oil suction cavity is ensured to periodically suck oil from small to large, then the oil discharge cavity periodically discharges oil from large to small, and low oil is conveyed to a high position; the rotating shaft 22 and the two blade plates 23 are attached to the hydraulic pump shell 1, so that gap leakage is prevented, and the efficiency of the portable hydraulic pump for filling hydraulic oil into the hydraulic turnout tamping machine is improved; the sealing ring is used for preventing oil from leaking out of the hydraulic pump shell 1; the compression spring 27 is utilized to ensure that the edges of the two vane plates 23 are always attached to the inner surface of the hydraulic pump shell 1, so as to prevent the oil discharge cavity from being communicated with the oil suction cavity; the forward rotation key, the reverse rotation key and the stop key are used for controlling the rotary driving motor 31 to start and stop or rotate forward and backward through the controller; utilize the supporting structure to support advancing oil pipe 8, need not that operating personnel is hand, prevent simultaneously that this portable hydraulic pump for hydraulic switch tamping tool filling hydraulic oil from tilting because of the work vibrations.

Further, a guide hole 26 is provided on the insertion side edge of one of the vane plates 23, and a guide post 25 having one end slidably fitted in the guide hole 26 is fixed on the insertion side edge of the other vane plate 23; the compression spring 27 is sleeved on the guide post 25. The guide holes 26 and the guide posts 25 are matched, so that the motion stability of the two vane plates 23 is ensured, and meanwhile, the compression springs 27 are convenient to install.

Furthermore, the extending side edges of the two vane plates 23 are respectively provided with a wear-resistant strip 34, the wear-resistant strips 34 are attached to the circumferential surface of the cylindrical cavity, and the pressing edges of the wear-resistant strips 34 are provided with arc chamfers. The abrasion of the vane plate 23 to the inner side surface of the hydraulic pump housing 1 in the rotating process is reduced by the wear-resistant strips 34 and the arc-shaped chamfers.

Further, a handle 3 is fixed to the upper side of the hydraulic pump housing 1. The handle 3 is convenient for lifting or carrying the portable hydraulic pump for filling hydraulic oil into the hydraulic turnout tamping machine.

Furthermore, a hose 5 is butt-jointed and installed on the nozzle of the oil outlet pipe 4 through a mounting flange 6. Utilize hose 5 to be convenient for butt joint equipment oil inlet of various angles

Further, the support structure comprises a mounting ring 9, four support tubes 10, four telescopic rods 16, four anti-skidding sleeves 14 and a support adjusting mechanism;

the mounting ring 9 is sleeved and fixed on the oil inlet pipe 8; the four supporting tubes 10 are hinged on the outer side surface of the mounting ring 9 at intervals; the upper ends of the four telescopic rods 16 respectively extend into the four support tubes 10, and the lower ends of the four telescopic rods 16 are respectively fixed with an anti-skid sleeve 14; a support tube threaded hole is formed in each of the four support tubes 10; a fastening bolt 11 is screwed in each supporting tube threaded hole, and the end part of the fastening bolt 11 is used for pressing the telescopic rod 16; the bracket adjusting mechanism is arranged below the mounting ring 9 and used for synchronously adjusting the angles of the four supporting tubes 10.

The four supporting tubes 10 ensure the even and balanced supporting force of the oil inlet tube 8; the length of the supporting structure is adjusted by the cooperation of the fastening bolt 11, the supporting tube 10 and the telescopic rod 16; the oil inlet pipe 8 is prevented from shifting due to working vibration by the anti-slip sleeve 14.

Further, the bracket adjusting mechanism comprises an adjusting ring 12, four adjusting rods 13 and an adjusting bolt 32; the adjusting ring 12 is sleeved on the oil inlet pipe 8 below the mounting ring 9; the upper ends of four adjusting rods 13 are hinged on the outer side surface of the adjusting ring 12 at intervals, and the lower ends of the four adjusting rods 13 are respectively hinged on the supporting tubes 10 on the corresponding sides; an adjusting ring threaded hole is provided in the adjusting ring 12, an adjusting bolt 32 is screwed into the adjusting ring threaded hole, and an end of the adjusting bolt 32 is used to press against the oil inlet pipe 8, thereby fixing the adjusting ring 12. The up-and-down movement of the adjusting ring 12 drives the supporting tubes 10 to swing, so that the synchronous angle adjustment of the four supporting tubes 10 is realized.

Further, a sealing wafer 21 is fixed at the lower pipe opening of the oil inlet pipe 8 in a sealing way; an extension pipe hole is arranged on the sealing wafer 21; an extension pipe 17 is inserted on the extension pipe hole; a snap ring 20 is fixed on the outer edge of the opening of the extending end of the extension pipe 17, and the lower side surface of the snap ring 20 is used for pressing on the upper side surface of the sealing circular sheet 21; an annular baffle plate 18 is fixed to the outer edge of the lower mouth of the extension pipe 17, and a plurality of support posts 19 are provided at intervals on the lower side surface of the annular baffle plate 18.

The extension pipe 17 is used for extending the oil inlet pipe 8, so that deeper oil can be conveniently sucked; the extension pipe 17 is prevented from falling out of the oil inlet pipe 8 by the matching between the sealing circular sheet 21 and the clamping ring 20; the extension pipe 17 is prevented from being retracted into the oil inlet pipe 8 by the sealing circular sheet 21 and the annular baffle plate 18; utilize a plurality of pillars 19 to transfer at annular separation blade 18 and form the clearance, prevent that annular separation blade 18 laminating oil drum bottom from leading to unable oil absorption.

Further, a sealing ring pressed on the inner wall of the oil inlet pipe 8 is fixed on the outer edge of the buckle ring 20; a sealing ring pressed on the outer wall of the extension pipe 17 is fixed on the hole wall of the extension pipe hole. Utilize two sealing washers to carry out sliding seal, prevent that the air from getting into oil pipe 8 in, further improved efficiency.

Furthermore, an oil groove 35 communicated with the oil outlet pipe 4 is arranged on the hydraulic pump shell 1 above the linear contact position of the rotating shaft 22 and the columnar cavity, and an oil groove 35 communicated with the oil inlet pipe 8 is arranged on the hydraulic pump shell 1 below the linear contact position of the rotating shaft 22 and the columnar cavity.

Utilize two oil grooves 35 to feed through respectively into oil pipe 8 and play oil pipe 4, prevent that bladed plate 23 and pivot 22 from leading to the unable discharge of fluid at rotatory in-process and the inner wall formation airtight cavity of hydraulic pump housing 1, prevent simultaneously that fluid from producing huge instantaneous pressure because of the extrusion and destroying hydraulic pump housing 1.

In the portable hydraulic pump for filling hydraulic oil into the hydraulic turnout tamping machine, the controller adopts the existing single chip microcomputer control module and is used for controlling the rotary driving motor 31 through the rotary motor driving circuit; the rotary drive motor 31 is an existing stepping motor; the rotating motor driving circuit adopts a corresponding stepping motor driving circuit.

When the portable hydraulic pump for filling hydraulic oil into the hydraulic turnout tamping machine is installed and used, the extension pipe 17 is firstly extended to the bottom of an oil drum, and then the height position of the adjusting ring 12 is adjusted, so that the angles of the four supporting pipes 10 are synchronously adjusted through the four adjusting rods 13, and the adjusting bolts 32 are screwed up until the required angles are reached; then, the length of the four telescopic rods 16 extending out of the support tube 10 is adjusted, and the four fastening bolts 11 are screwed down after the length is determined; then, a forward-rotation key is pressed to send an instruction to the controller, the controller receives the instruction and controls the rotary driving motor 31 to rotate clockwise through the rotary motor driving circuit, and oil is sucked from the oil inlet pipe 8 and discharged from the oil outlet pipe 4; after oil absorption is finished, the reversing key is pressed to send an instruction to the controller, the controller receives the instruction and controls the rotary driving motor 31 to rotate anticlockwise through the rotary motor driving circuit, and residual oil in the hydraulic pump shell 1 is discharged from the oil inlet pipe 8; after the oil is drained, the stop button is pressed to give an instruction to the controller, and the controller receives the instruction and controls the rotation driving motor 31 to stop rotating through the rotating motor driving circuit.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a portable hydraulic pump of hydraulic oil is annotated to for hydraulic switch tamping tool which characterized in that: the hydraulic pump comprises a hydraulic pump shell (1), a rotating shaft (22), two vane plates (23), two connecting shafts (24), an oil inlet pipe (8), an oil outlet pipe (4), a rotary driving motor (31), an operating panel (28) and a support structure;

a through groove (33) is formed in the rotating shaft (22) along the diameter direction, and the rotating shaft (22) is divided into two side columns by the through groove (33) in a halving mode; the two connecting shafts (24) are respectively coaxially fixed on the front side surface and the rear side surface of the rotating shaft (22) and are used for connecting the two side columns;

a columnar cavity is arranged in the hydraulic pump shell (1); a connecting shaft groove is formed in the eccentric position on the rear side face of the columnar cavity, and a connecting shaft hole corresponding to the connecting shaft groove is formed in the front side face of the columnar cavity;

the connecting shaft (24) at the rear side is rotatably arranged in the connecting shaft groove, the connecting shaft (24) at the front side is rotatably arranged in the connecting shaft hole, and a sealing ring is arranged between the connecting shaft (24) and the connecting shaft hole; the front side surface and the rear side surface of the rotating shaft (22) are respectively attached to the front side surface and the rear side surface of the columnar cavity, and the circumferential surface of the rotating shaft (22) is in line contact with the circumferential surface of the columnar cavity;

the two blade plates (23) are inserted in the through grooves (33); a compression spring (27) is arranged between the two vane plates (23); two ends of the compression spring (27) are respectively pressed on the insertion side edges of the two blade plates (23), so that the extending side edges of the two blade plates (23) are attached to the circumferential surface of the cylindrical cavity; the edges of the front side and the rear side of the two blade plates (23) are respectively attached to the front side and the rear side of the columnar cavity;

a gear shaft is coaxially fixed on the front end surface of the connecting shaft (24) at the front side; a driven bevel gear (29) is arranged on the gear shaft; a rotary driving motor (31) is arranged on the front side surface of the hydraulic pump shell (1), and a driving bevel gear (30) meshed with the driven bevel gear (29) is arranged on an output shaft of the rotary driving motor (31); a protective cover (2) is fixed on the front side surface of the hydraulic pump shell (1), and a rotary driving motor (31), a driven bevel gear (29) and a driving bevel gear (30) are all positioned in the protective cover (2);

the oil outlet pipe (4) is fixed on the hydraulic pump shell (1) above the linear contact position of the rotating shaft (22) and the columnar cavity in a communicating manner; the oil inlet pipe (8) is vertically communicated and fixed on a hydraulic pump shell (1) below the linear contact position of the rotating shaft (22) and the columnar cavity;

the bracket structure is arranged on the oil inlet pipe (8) and used for supporting the oil inlet pipe (8);

a controller and a rotary motor driving circuit electrically connected with the controller are arranged in the protective cover (2), and the controller drives the rotary driving motor (31) to rotate forward and backward through the rotary motor driving circuit;

an operation panel (28) is installed on the front side surface of the protection cover (2); the operation panel (28) is provided with a forward rotation button, a reverse rotation button and a stop button which are electrically connected with the controller.

2. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 1, wherein: a guide hole (26) is arranged on the insertion side edge of one of the vane plates (23), and a guide column (25) with one end part slidably mounted on the guide hole (26) is fixed on the insertion side edge of the other vane plate (23); the compression spring (27) is sleeved on the guide post (25).

3. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 1, wherein: the extending side edges of the two vane plates (23) are respectively provided with a wear-resistant strip (34), the wear-resistant strips (34) are attached to the circumferential surface of the cylindrical cavity, and the pressing edges of the wear-resistant strips (34) are arc-shaped chamfers.

4. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 1, wherein: a handle (3) is fixed on the upper side of the hydraulic pump shell (1).

5. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 1, wherein: a hose (5) is butt-jointed and installed on the nozzle of the oil outlet pipe (4) through an installation flange (6).

6. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 1, wherein: the support structure comprises a mounting ring (9), four support tubes (10), four telescopic rods (16), four anti-skidding sleeves (14) and a support adjusting mechanism;

the mounting ring (9) is sleeved and fixed on the oil inlet pipe (8); the four supporting tubes (10) are hinged on the outer side surface of the mounting ring (9) at intervals; the upper ends of the four telescopic rods (16) respectively extend into the four supporting tubes (10), and the lower ends of the four telescopic rods (16) are respectively fixed with an anti-skidding sleeve (14); a supporting tube threaded hole is formed in each of the four supporting tubes (10); a fastening bolt (11) is screwed in each supporting tube threaded hole in a threaded manner, and the end part of the fastening bolt (11) is used for pressing the telescopic rod (16); the support adjusting mechanism is arranged below the mounting ring (9) and used for synchronously adjusting the angles of the four supporting tubes (10).

7. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 6, wherein: the bracket adjusting mechanism comprises an adjusting ring (12), four adjusting rods (13) and an adjusting bolt (32); the adjusting ring (12) is sleeved on the oil inlet pipe (8) below the mounting ring (9); the upper ends of four adjusting rods (13) are hinged on the outer side surface of the adjusting ring (12) at intervals, and the lower ends of the four adjusting rods (13) are respectively hinged on the supporting tubes (10) on the corresponding sides; an adjusting ring threaded hole is formed in the adjusting ring (12), an adjusting bolt (32) is screwed in the adjusting ring threaded hole, and the end of the adjusting bolt (32) is used for pressing the oil inlet pipe (8) so as to fix the adjusting ring (12).

8. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 1, wherein: a sealing wafer (21) is fixed at the lower pipe opening of the oil inlet pipe (8) in a sealing way; an extension pipe hole is arranged on the sealing wafer (21); an extension pipe (17) is inserted on the extension pipe hole; a snap ring (20) is fixed on the outer edge of the opening of the extending end of the extension pipe (17), and the lower side surface of the snap ring (20) is used for pressing the upper side surface of the sealing circular sheet (21); an annular baffle plate (18) is fixed on the outer edge of the lower pipe orifice of the extension pipe (17), and a plurality of support columns (19) are arranged on the lower side surface of the annular baffle plate (18) at intervals.

9. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 8, wherein: a sealing ring pressed on the inner wall of the oil inlet pipe (8) is fixed on the outer edge of the buckle ring (20); a sealing ring pressed on the outer wall of the extension pipe (17) is fixed on the hole wall of the extension pipe hole.

10. The portable hydraulic pump for filling a hydraulic switch tamping machine with hydraulic oil of claim 1, wherein: an oil groove (35) communicated with the oil outlet pipe (4) is arranged on the hydraulic pump shell (1) above the linear contact position of the rotating shaft (22) and the columnar cavity, and an oil groove (35) communicated with the oil inlet pipe (8) is arranged on the hydraulic pump shell (1) below the linear contact position of the rotating shaft (22) and the columnar cavity.

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