CN211761507U - Railway cantilever mounting robot - Google Patents

Abstract

The utility model discloses a railway wrist arm installation robot, which comprises a rail car traveling along the track direction, a generator arranged on the rail car, and a lift arm fixed on the rail car and used for grabbing the wrist arm and performing lifting and lowering operations. , an operating platform fixed on the rail car, a control box set on the rail car and electrically connected to the generator, and a hydraulic device set on the rail car, electrically controlled by the control box, and driving the lifting arm and the operating platform. Through the above solution, the utility model fills the technical gap of the prior art without special railway wrist arm installation equipment, and has the advantages of simple structure, efficient and reliable hoisting, high installation efficiency, etc., and has high practicality in the field of wrist arm installation technology. value and promotion value.

Description

A railway wrist arm installation robot

technical field

The utility model relates to the technical field of wrist arm installation, in particular to a railway wrist arm installation robot.

Background technique

The wrist arm, mounted on the strut, is used to support the contact suspension and transmit the load; according to the wrist arm structure, it can be divided into a horizontal wrist arm with a pull rod, a flat wrist arm with a diagonal brace, and a pull rod (or pressure tube) ) oblique wrist arm, etc.; at present, the installation of the wrist arm in the prior art is mainly manual, and each set of wrist arm installation requires at least 5 to 7 operators, and its work efficiency is too low; The weight is about 200Kg, and it is more laborious to lift; in addition, there is a lifting trolley to install the wrist arm, and the fixing steps before installation are more complicated. Rollover accident; not only that, it is more difficult for the lift trolley to travel on the track.

Therefore, there is an urgent need to propose a railway wrist-arm installation robot with a simple structure and high installation efficiency, so as to fill the technical gap of the existing technology without special railway wrist-arm installation equipment.

Utility model content

In view of the above-mentioned problems, the purpose of this utility model is to provide a kind of railway wrist arm installation robot, and the technical scheme adopted by the utility model is as follows:

A railway wrist arm installation robot, which travels along a track direction and hoists the wrist arm to an installation position of a catenary pillar; the railway wrist arm installation robot comprises a rail car traveling along the track direction, and a generator arranged on the rail car, The lifting arm fixed on the rail vehicle and used for grabbing the wrist arm and performing lifting operations, the operation platform fixed on the rail vehicle, the control box arranged on the rail vehicle and electrically connected with the generator, and the rail vehicle The hydraulic device is electrically controlled by the control box and drives the lifting arm and the operating platform.

Further, the lift arm includes a lift arm base fixed on the rail vehicle, a first arm rod whose rear end is hinged with the top of the lift arm base, and a second arm rod whose rear end is hinged with the front end of the first arm rod. The wrist arm grabbing mechanism hinged at the front end of the second arm rod, the ends are connected with the lift arm base and the first arm rod in a one-to-one correspondence, and drive the first arm rod to rotate with the hinge with the lift arm base as the fulcrum. A lifting hydraulic cylinder, and a second lifting hydraulic cylinder whose ends are connected to the first arm rod and the second arm rod in one-to-one correspondence and drives the second arm rod to rotate with the hinge joint with the first arm rod as a fulcrum.

Further, the wrist arm grabbing mechanism includes a grabbing mechanism mounting seat whose top is hinged with the front end of the second arm rod, a horizontal moving slide rail fixed on the bottom of the grabbing mechanism mounting seat, and a horizontal moving slide rail arranged on the bottom of the grabbing mechanism mounting seat. , the left and right gripping mechanisms for grasping the wrist arm.

Further, the structure of the left grabbing mechanism and the right grabbing mechanism are the same, and the right grabbing mechanism includes a groove-shaped grab buckle mounting seat fixed on the bottom of the horizontal moving slide rail, and fixed on the grab buckle mounting seat. The electric cylinder in the groove shape of the electric cylinder and electrically connected with the control box, the crossbar connected with the electric cylinder and driven by the electric cylinder to move back and forth, and the two steel wire ropes whose one end is connected with the two ends of the crossbar in one-to-one correspondence are arranged in the A reversing wheel used for reversing the wire rope on the grab buckle mounting seat, a hoisting plate connected with the other end of any wire rope, and a self-locking grab buckle arranged at the lower part of the hoisting plate and used for grabbing the wrist arm.

Further, the right grabbing mechanism further includes a stopper sleeved on any steel wire rope and placed on the upper part of the hoisting plate.

Further, the operating platform includes a lifting base fixed on the rear of the rail vehicle, a rotator fixed on the lifting base and electrically connected to the control box, and a lifting base fixed on the rotator, which is arranged on the lifting base. A lifting mechanism connected to the hydraulic device, and an operating table arranged on the top of the lifting mechanism.

Further, the hydraulic device includes an oil tank fixed on the rail vehicle, a first filter and a second filter connected with the oil tank by pipelines, and a double filter connected with the first filter and the second filter in a one-to-one correspondence. The pump is electrically connected to the control box and is used to drive the motor of the double pump. The first one-way valve and the second one-way valve which are connected with the double pump in a one-to-one correspondence are connected with the first one-way valve. The hydraulic drive circuit of the operation platform and the hydraulic drive circuit of the first lifting hydraulic cylinder, and the hydraulic driving circuit of the second lifting hydraulic cylinder connected with the second one-way valve are sequentially connected to the hydraulic driving circuit of the operation platform, the hydraulic driving circuit of the first lifting hydraulic cylinder and the hydraulic driving circuit of the first lifting hydraulic cylinder respectively. The drive circuit is connected with the hydraulic drive circuit of the second lifting hydraulic cylinder, and the other end is connected to the air cooler and the oil return filter of the oil tank, the first electromagnetic relief valve connected between the air cooler and the first one-way valve, and the A second electromagnetic relief valve between the air cooler and the second one-way valve.

Further, the first lift hydraulic cylinder hydraulic drive circuit and the second lift hydraulic cylinder hydraulic drive circuit have the same structure, and the first lift hydraulic cylinder hydraulic drive circuit includes a pipeline connected between the first lift hydraulic cylinder and the second lift hydraulic cylinder. The first one-way valve is between the proportional reversing valve and the balance valve.

Further, the operating platform hydraulic drive circuit includes a solenoid valve, a two-way throttle valve and a superimposed hydraulic control one-way valve connected between the operating platform and the first one-way valve.

Further, the hydraulic device also includes an oil drain valve, an air filter, a temperature sensor and a liquid level relay all connected with the oil tank, a liquid level gauge in communication with the oil tank, and a pressure gauge switch in communication with the first one-way valve. and pressure gauge, as well as the normally closed valve bridged between the air coolers.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model ingeniously arranges the rail vehicle to travel along the track direction, which is more convenient than the lifting trolley or the crane, and does not need to look for the hoisting fixed fulcrum (the lifting trolley or the crane must be fixed at each arm arm installation place four support point), the flexibility of the utility model is stronger, and the installation and movement efficiency is higher;

(2) The utility model cleverly installs the lifting arm on the rail vehicle, and uses hydraulic drive, its action is reliable, and the hoisting efficiency is obviously improved;

(3) The utility model is provided with an operating platform on the rail vehicle, and after the lifting arm is used to hoist the wrist arm, the installer can easily install it; the operator used in the utility model can be reduced to 2 people, and one person is responsible for the driving and hydraulic control. , the other person is responsible for buckling the wrist arm on the self-locking catch, and stands on the operating platform for installation; the utility model greatly reduces the number of construction personnel, and realizes safe and efficient installation;

(4) The utility model is cleverly provided with a horizontal moving slide rail, so that the horizontal direction can be fine-tuned after the wrist arm is hoisted in place; in addition, the utility model is also provided with an electric cylinder, which is used to drive the wire rope and drive the self-locking catch to move. , in order to realize the up and down fine adjustment of the wrist arm; in this way, the wrist arm can be installed quickly and reliably; the installation efficiency of the traditional lifting trolley or crane is significantly improved;

(5) The operating platform of the present utility model is provided with a rotator, which can ensure that the operator's installation angle covers a wider range while providing the wrist arm hoisting space;

(6) The utility model cleverly sets the left grabbing mechanism and the right grabbing mechanism to ensure that the wrist arm grabs the force evenly, and effectively avoids the wrist arm side slip, scratches and other problems;

(7) The utility model cleverly adopts the self-locking catch, which can be simply buckled in for hoisting, and can be removed by pressing the self-locking catch after installation; it is easy to operate and can also save hoisting and binding time;

(8) The utility model cleverly adopts hydraulic drive, its driving force is large, and the movement is stable, which makes the arm hoisting more reliable;

(9) The utility model cleverly adopts the first arm rod, the second arm rod, the left grabbing mechanism and the right grabbing mechanism, and the swing amplitude is small, which effectively avoids the collision and damage of the wrist arm swing, and can also be quickly hoisted. to the installation location;

(10) The utility model adopts the control box to control the action of the solenoid valve and the proportional reversing valve, so as to realize the smooth movement of the first lifting hydraulic cylinder, the second lifting hydraulic cylinder and the lifting mechanism;

(11) The utility model adds an electromagnetic relief valve in the oil circuit, which effectively avoids the excessive hydraulic pressure and ensures that the hydraulic control is more reliable;

(12) The utility model adds a cooling fan in the oil circuit to cool the oil return, effectively preventing the oil return temperature of the oil tank from being too high and causing the oil pump to malfunction; the utility model prolongs the service life of the oil pump.

To sum up, the utility model fills the technical gap of the existing technology without special railway wrist arm installation equipment, and has the advantages of simple structure, efficient and reliable hoisting, high installation efficiency, etc. Practical value and promotion value.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, therefore It should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the front view of the utility model.

FIG. 2 is a schematic diagram of the three-dimensional structure of the present invention.

3 is a schematic structural diagram of the lifting arm of the present invention.

FIG. 4 is a schematic structural diagram of an operation platform of the present invention.

FIG. 5 is a schematic structural diagram (1) of the wrist-arm grabbing mechanism of the present invention.

FIG. 6 is a schematic structural diagram (1) of the wrist-arm grabbing mechanism of the present invention.

FIG. 7 is a schematic structural diagram of the right grabbing mechanism of the present invention.

FIG. 8 is a schematic structural diagram of the right grabbing mechanism of the present invention (removing the grabbing buckle mounting seat).

FIG. 9 is a schematic diagram of the hydraulic device of the present invention.

In the above drawings, the names of the parts corresponding to the reference numerals are as follows:

1- fuel tank, 2- oil drain valve, 3- liquid level gauge, 4- first filter, 5- second filter, 6- double pump, 7- air filter, 8- motor, 9- first One-way valve, 10-second one-way valve, 11-temperature sensor, 12-liquid level relay, 13-pressure gauge switch, 14-pressure gauge, 15-first electromagnetic overflow valve, 16-second electromagnetic overflow Flow valve, 17-solenoid valve, 18-two-way throttle valve, 19-superimposed hydraulic control check valve, 20-proportional reversing valve, 21-balance valve, 25-cooler, 26-normally closed valve, 27 -Oil return filter, 101-Track crane, 102-Lifting arm, 103-Operating platform, 104-Wrist arm, 111-Generator, 112-Control box, 121-Lifting arm base, 122-First boom, 123 -Second boom, 124-Wrist arm grabbing mechanism, 125-First lifting hydraulic cylinder, 126-Second lifting hydraulic cylinder, 131-Lifting base, 132-Lifting base, 133-Lifting mechanism, 134-Operating table , 135-Rotator, 241-Grab Mechanism Mount, 242-Horizontal Moving Slide, 243-Left Grab Mechanism, 244-Right Grab Mechanism, 2441- Grab Buckle Mount, 2442- Electric Cylinder, 2443-Change To the wheel, 2444-crossbar, 2445-wire rope, 2446-stop, 2447-hoisting plate, 2448-self-locking catch.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the present utility model will be further described below with reference to the accompanying drawings and examples. The embodiments of the present utility model include but are not limited to the following examples. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

Example

As shown in FIG. 1 to FIG. 9 , the present embodiment provides a railway wrist arm installation robot, which travels along the track direction and hoists the wrist arm 104 to the installation position of the catenary column. It should be noted that the serial number terms such as "first" and "second" described in this embodiment are only used to distinguish similar components, and cannot be understood as a specific limitation on the protection scope. In addition, directional terms such as "bottom", "top", "surrounding edge", and "center" described in this embodiment are explained based on the drawings. In addition, the structure of the rail vehicle in this embodiment is similar to that of the rail inspection vehicle, and its internal structure will not be repeated here; not only that, the control box of this embodiment is obtained from purchase, and it is obtained from the wiring of conventional controllers and electrical components , and the control program can be realized by a combination of conventional program segments, which will not be repeated here.

In this embodiment, the railway wrist arm installation robot includes a rail car 101 that travels along the track direction, a generator 111 arranged on the rail car 101, and a generator 111 fixed on the rail car 101 for grabbing the wrist arm and performing lifting and lowering operations. The lifting arm 102, the operation platform 103 fixed on the rail vehicle 101, the control box 112 arranged on the rail vehicle 101 and electrically connected with the generator 111, and the control box 112 arranged on the rail vehicle 101, electrically controlled by the control box 112, and connected to the generator 111. The hydraulic device that drives the lift arm 102 and the operating platform 103 .

The lift arm 102 includes a lift arm base 121 fixed on the rail vehicle 101 , a first arm rod 122 whose rear end is hinged with the top of the lift arm base 121 , and a second arm whose rear end is hinged with the front end of the first arm rod 122 . The rod 123, the wrist arm grabbing mechanism 124 hinged with the front end of the second arm rod 123, the ends are connected with the lift arm base 121 and the first arm rod 122 in one-to-one correspondence, and drive the first arm rod 122 to connect with the lift arm base The hinge of 121 is the first lifting hydraulic cylinder 125 that rotates at the fulcrum, and the ends are connected with the first arm 122 and the second arm 123 in one-to-one correspondence, and drive the second arm 123 to be connected with the first arm 122. The hinge is the second lifting hydraulic cylinder 126 that rotates at the fulcrum. The wrist arm grabbing mechanism 124 includes a grabbing mechanism mounting seat 241 hinged at the top with the front end of the second arm rod 123 , a horizontal moving rail 242 fixed on the bottom of the grabbing mechanism mounting seat 241 , and a horizontal moving rail 242 arranged on the horizontal moving rail 242 , the left grabbing mechanism 243 and the right grabbing mechanism 244 for grabbing the wrist arm 104 .

In this embodiment, the structures of the left grabbing mechanism 243 and the right grabbing mechanism 244 are the same, and the right grabbing mechanism 244 includes a groove-shaped grabbing mounting seat 2441 fixed on the bottom of the horizontal moving slide rail 242 . An electric cylinder 2442, which is in the groove shape of the grabbing seat 2441 and is electrically connected to the control box 112, is connected with the electric cylinder 2442 and is driven by the electric cylinder 2442 to move forward and backward. The two wire ropes 2445 connected at one end in a one-to-one correspondence are arranged on the grab buckle mounting seat 2441, the reversing pulley 2443 used for reversing the wire rope 2445, and the hoisting plate 2447 connected with the other end of any wire rope 2445 is arranged on the hoisting The lower part of the plate 2447, the self-locking catch 2448 for grasping the wrist arm 104, and the limiter 2446 sleeved on any wire rope 2445 and placed on the upper part of the hoisting plate 2447.

When the rail car 101 is parked and hoisted, the hydraulic device controls the first lifting hydraulic cylinder 125 and the second lifting hydraulic cylinder 126 to recover, so that the wrist arm grabbing mechanism 124 is close to the bottom surface, and the self-locking grabbing buckle 2448 is used to fasten it on the pull rod of the wrist arm , the left grasping mechanism 243 and the right grasping mechanism 244 simultaneously grasp the wrist arm to ensure its force balance; after the wrist arm grasping mechanism 124 grasps the wrist arm, the hydraulic device controls the first lifting hydraulic cylinder 125 and the second lifting hydraulic pressure The cylinder 126 is extended to lift the wrist arm; after the wrist arm is lifted in place, the horizontal moving slide rail 242 can be used to move the wrist arm left and right, and the electric cylinder can also be used to drive the wire rope and drive the self-locking catch to move, so as to realize the movement of the wrist arm. Fine-tune up and down.

When the wrist arm is hoisted and installed, the operator also needs to perform the installation operation. The present embodiment also provides an operation platform 103, which includes a lift base 131 fixed on the rear of the rail vehicle 101, fixed on the lift base 131, and connected to the lift base 131. Operation of the rotator 135 electrically connected to the control box 112 , the lifting base 132 fixed on the rotator 135 , the lifting mechanism 133 provided on the lifting base 132 and connected to the hydraulic device, and the operation of the top of the lifting mechanism 133 Desk 134. In this embodiment, the lifting mechanism 133 is used to drive the operating table 134 to move up and down; and this embodiment uses the rotator 135 to drive the lifting base 132 to rotate, so as to ensure a wider installation angle coverage.

In this embodiment, in order to ensure the reliable lifting and lowering of the operating platform and the lifting arm, a hydraulic device is cleverly arranged, which includes an oil tank 1 fixed on the rail vehicle 101, a first filter 4 and a second filter 4 connected to the oil tank 1 by pipelines The second filter 5, the double pump 6 connected with the first filter 4 and the second filter 5 in one-to-one correspondence, is electrically connected to the control box 112, and is used to drive the motor 8 of the double pump 6. The first one-way valve 9 and the second one-way valve 10, which are connected in one-to-one correspondence with the pump 6, are connected to the operation platform hydraulic drive circuit and the first lift hydraulic cylinder hydraulic drive circuit connected to the first one-way valve 9. The second lift hydraulic cylinder hydraulic drive circuit connected to the one-way valve 10 is connected in sequence with one end connected to the operation platform hydraulic drive circuit, the first lift hydraulic cylinder hydraulic drive circuit and the second lift hydraulic cylinder hydraulic drive circuit, and the other end is connected to the operation platform hydraulic drive circuit, the first lift hydraulic cylinder hydraulic drive circuit and the second lift hydraulic cylinder hydraulic drive circuit The air cooler 25 and the oil return filter 27 of the oil tank 1, the first electromagnetic relief valve 15 connected between the air cooler 25 and the first one-way valve 9, are connected between the air cooler 25 and the second one-way valve 10 The second electromagnetic overflow valve 16, the oil drain valve 2, the air filter 7, the temperature sensor 11 and the liquid level relay 12 connected with the oil tank 1, the liquid level gauge 3 connected with the oil tank 1, and the first one-way The pressure gauge switch 13 and the pressure gauge 14 communicated with the valve 9 , and the normally closed valve 26 bridged between the cooling fans 25 . The structures of the first lift hydraulic cylinder hydraulic drive circuit and the second lift hydraulic cylinder hydraulic drive circuit are the same, and the first lift hydraulic cylinder hydraulic drive circuit includes a pipeline connected between the first lift hydraulic cylinder 125 and the first single lift The proportional reversing valve 20 and the balance valve 21 between the directional valve 9 . In addition, the operating platform hydraulic drive circuit includes a solenoid valve 17 , a two-way throttle valve 18 and a superimposed hydraulic control one-way valve 19 connected between the operating platform and the first one-way valve 9 .

In this embodiment, the operator gives the instruction, the control box controls the motor action, and drives the double pump 6 to act and press; the hydraulic oil under pressure enters the proportional reversing valve 20 from the first one-way valve 9; the proportional reversing The valve 20 moves to the left (the upper chamber of the first lifting hydraulic cylinder 125 enters oil and the lower chamber returns oil), the first lifting hydraulic cylinder 125 is recovered, the proportional reversing valve 20 moves to the right, and the first lifting hydraulic cylinder 125 is extended; Similarly, the action principle of the hydraulic drive circuit of the second lift hydraulic cylinder is the same; in this way, the hydraulic operation of the lift arm 102 can be realized; the action principle of the hydraulic drive circuit of the operating platform is similar, and will not be repeated here. In this embodiment, when the pressure of the hydraulic oil is too large, the first electromagnetic relief valve 15 and the second electromagnetic relief valve 16 are used for pressure relief.

The above-mentioned embodiments are only the preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any changes made by adopting the design principles of the present invention and by performing non-creative work on this basis shall belong to the present invention. within the scope of the new protection.

Claims (10)

1. The railway cantilever mounting robot is characterized by comprising a track traveling crane (101) traveling along the track direction, a generator (111) arranged on the track traveling crane (101), a lifting arm (102) fixed on the track traveling crane (101) and used for grabbing a cantilever and performing lifting operation, an operation platform (103) fixed on the track traveling crane (101), a control box (112) arranged on the track traveling crane (101) and electrically connected with the generator (111), and a hydraulic device arranged on the track traveling crane (101), electrically controlled by the control box (112) and driving the lifting arm (102) and the operation platform (103).

2. A railway cantilever-mounted robot according to claim 1, wherein the lifting arm (102) comprises a lifting arm base (121) fixed on the rail vehicle (101), a first arm rod (122) with a rear end hinged with the top of the lifting arm base (121), a second arm rod (123) with a rear end hinged with the front end of the first arm rod (122), a wrist arm grabbing mechanism (124) hinged with the front end of the second arm rod (123), a first lifting hydraulic cylinder (125) the end parts of which are in one-to-one correspondence with the lifting arm base (121) and the first arm rod (122) and drive the first arm rod (122) to rotate by taking the hinged part with the lifting arm base (121) as a fulcrum, and the end parts of the second lifting hydraulic cylinders (126) are connected with the first arm rods (122) and the second arm rods (123) in a one-to-one correspondence manner, and drive the second arm rods (123) to rotate by taking the hinged parts of the second lifting hydraulic cylinders and the first arm rods (122) as pivots.

3. A railroad cantilever-mounting robot as claimed in claim 2, wherein the cantilever grasping mechanism (124) comprises a grasping mechanism mounting base (241) whose top is hinged with the front end of the second arm bar (123), a horizontal moving slide rail (242) fixed at the bottom of the grasping mechanism mounting base (241), and a left grasping mechanism (243) and a right grasping mechanism (244) provided at the bottom of the horizontal moving slide rail (242) for grasping the cantilever (104).

4. The railroad cantilever installation robot of claim 3, wherein the left grabbing mechanism (243) and the right grabbing mechanism (244) are identical in structure, and the right grabbing mechanism (244) comprises a clasp mounting seat (2441) fixed at the bottom of the horizontal moving slide rail (242) and in a groove shape, an electric cylinder (2442) fixed in the groove shape of the clasp mounting seat (2441) and electrically connected with the control box (112), a cross bar (2444) connected with the electric cylinder (2442) and driven by the electric cylinder (2442) to move forward and backward, two steel cables (2445) having one end connected with two ends of the cross bar (2444) in one-to-one correspondence, a reversing wheel (2443) arranged on the clasp mounting seat (2441) and used for reversing the steel cables (2445), a hoisting plate (2447) connected with the other end of any steel cable (2445), and a hoisting plate (2447) arranged at the lower part of the hoisting plate (2447), A self-locking clasp (2448) for grasping the wrist arm (104).

5. The railroad cantilever installation robot of claim 4, wherein the right grabbing mechanism (244) further comprises a stopper (2446) sleeved on any steel wire rope (2445) and placed on the upper part of the hoisting plate (2447).

6. A railroad cantilever-mounted robot as claimed in claim 1, wherein the operation platform (103) comprises a lifting base (131) fixed to the tail of the rail vehicle (101), a rotator (135) fixed to the lifting base (131) and electrically connected to the control box (112), a lifting base (132) fixed to the rotator (135), a lifting mechanism (133) provided on the lifting base (132) and connected to the hydraulic device, and an operation table (134) provided on the top of the lifting mechanism (133).

7. A railway cantilever installation robot according to claim 2, wherein the hydraulic means comprises an oil tank (1) fixed on the railway wagon (101), a first filter (4) and a second filter (5) communicating with the oil tank (1) by using pipelines, a duplex pump (6) correspondingly connected with the first filter (4) and the second filter (5) one by one, a motor (8) electrically connected with the control box (112) and used for driving the duplex pump (6), a first check valve (9) and a second check valve (10) correspondingly connected with the duplex pump (6) by using pipelines, an operation platform hydraulic driving circuit and a first hydraulic lifting cylinder hydraulic driving circuit both connected with the first check valve (9), a second hydraulic cylinder lifting hydraulic driving circuit connected with the second check valve (10), and a hydraulic cylinder lifting hydraulic driving circuit connected with the operation platform hydraulic driving circuit, a hydraulic cylinder lifting hydraulic driving circuit and a hydraulic cylinder lifting hydraulic driving circuit respectively connected with the second check valve (10) in sequence, and one end of which are connected with the operation platform hydraulic driving circuit, a hydraulic cylinder lifting, The air cooler (25) and the oil return filter (27) which are connected with the first lifting hydraulic cylinder hydraulic driving loop and the second lifting hydraulic cylinder hydraulic driving loop and are connected with the oil tank (1) at the other ends, the first electromagnetic overflow valve (15) connected between the air cooler (25) and the first one-way valve (9), and the second electromagnetic overflow valve (16) connected between the air cooler (25) and the second one-way valve (10).

8. A railway cantilever mounted robot according to claim 7, wherein the first and second hydraulic lift cylinder drive circuits are identical in construction and the first hydraulic lift cylinder drive circuit includes a proportional reversing valve (20) and a balancing valve (21) connected in piping between the first lift cylinder (125) and the first check valve (9).

9. A railway cantilever installation robot according to claim 7, wherein the operation platform hydraulic drive circuit comprises a solenoid valve (17), a two-way throttle valve (18) and a superimposed pilot operated check valve (19) connected between the operation platform and the first check valve (9).

10. A railway cantilever mounting robot according to claim 7, wherein the hydraulic device further comprises a fuel drain valve (2), an air filter (7), a temperature sensor (11) and a liquid level relay (12) all connected with the oil tank (1), a liquid level meter (3) communicated with the oil tank (1), a pressure gauge switch (13) and a pressure gauge (14) communicated with the first one-way valve (9), and a normally closed valve (26) bridged between the air coolers (25).

Images