CN213508634U - Hydraulic butt joint conversion platform - Google Patents

Abstract

The utility model relates to a hydraulic pressure butt joint conversion platform and control method thereof belongs to conversion interfacing apparatus technical field for the excavator. A hydraulic butt joint conversion platform is characterized by comprising a hydraulic integrated switching part and a connecting part; the hydraulic integrated switching part is provided with a quick-insertion female joint and a circuit female joint; the connecting part is provided with a quick-plug male connector and a circuit male connector; the quick-insert female connector is matched with the quick-insert male connector, and the circuit female connector is matched with the circuit male connector. Meanwhile, a control method of the hydraulic docking conversion platform is also disclosed. The technical scheme of the application solves the problems that the existing quick-change device is time-consuming and labor-consuming to replace, low in operation efficiency, high in failure rate, complex in accessory installation pipeline and the like, and aims to achieve the purpose that the quick replacement of the accessory and the butt joint of the pipeline can be completed within 2-4s without manual operation.

Description

Hydraulic butt joint conversion platform

Technical Field

The utility model relates to a hydraulic pressure butt joint conversion platform has designed this conversion platform's control method simultaneously, belongs to conversion interfacing apparatus technical field for the excavator.

Background

In engineering, the excavator needs to replace different auxiliary devices (such as a breaking hammer, a plum blossom grab bucket, a hydraulic shear and the like) so as to meet the requirements of different working conditions. The traditional method for replacing the accessory device is to directly detach the pin shafts connected with the accessory on the bucket rod and the rocker of the excavator and then mount the pin shafts again after the accessory is replaced. The replacement mode needs the cooperation of a plurality of operators to complete the replacement of the accessory, which wastes time and labor; and the engineering field is often harsh in environment, dust pollution is relatively serious, and the traditional replacement mode easily makes the tiny particle get into accessory and host computer articulated position mutually, leads to its lubrication badly, finally influences the machine life-span. Therefore, the traditional replacement method is not suitable for the working scene that the middle-large excavator frequently replaces accessories. Another method for replacing the accessory is to add a quick-change device between the accessory and the main machine. The accessory is replaced by the quick-change device. A quick-change device, also called a conversion platform, is a connecting device additionally arranged between a bucket rod and a connecting rod of an excavator. The excavator can quickly assemble and disassemble accessories with different functions through the excavator, so that the excavator realizes 'one machine with multiple functions and one machine with multiple functions'. Domestic quick change device mainly uses manual formula and semi-automatic formula quick change device as the owner, can't realize the automatic connection of oil circuit. Therefore, a novel universal conversion platform and an electro-mechanical-hydraulic integrated control system are needed, which can realize the quick butt joint of accessories and reduce the switching time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that current conversion platform for the machine of digging exists, provide a hydraulic pressure butt joint conversion platform and control method thereof.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a hydraulic butt joint conversion platform is characterized by comprising a hydraulic integrated switching part and a connecting part; the hydraulic integrated switching part is provided with a quick-insertion female joint and a circuit female joint; the connecting part is provided with a quick-plug male connector and a circuit male connector; the quick-insert female connector is matched with the quick-insert male connector, and the circuit female connector is matched with the circuit male connector;

the hydraulic integrated switching part also comprises a locking assembly, the locking assembly comprises two side cylinders and a mounting plate between the two side cylinders, a check valve mounting hole, four cylinder connecting oil holes, an oil inlet hole, an oil return hole, a circuit female joint mounting hole and a quick-insertion female joint mounting port are formed in the mounting plate, communicated oil passages are formed among the oil inlet hole, the oil return hole and the cylinder connecting oil holes, a hydraulic control check valve is mounted at the check valve mounting hole, the cylinder connecting oil holes are connected with the two side cylinders through pipelines, each cylinder is connected with the two cylinder connecting oil holes, one cylinder is connected with the oil hole for oil outlet, the other cylinder is connected with the oil hole for oil return, a locking pin shaft and an end cover are respectively mounted at the two ends of each cylinder, the locking pin shaft comprises a pin shaft seat plate and a pin shaft rod which are matched with the locking assembly, and the pin shaft rod is provided with; the piston rod is arranged in the cylinder barrel of the locking assembly, the extending end of the piston rod penetrates through the end cover, and the butt joint and the mechanical locking of an oil way and a circuit are realized by controlling the oil inlet and outlet of a rod cavity and a rodless cavity of the hydraulic integrated switching part; the limiting block is fixed at the end part of the extending end of the piston rod; the limiting block is fixed on the piston rod by a limiting pin and a clamp spring; the quick-insertion female joint and the circuit female joint are installed on the locking assembly, and the butt joint end is located on one side of the locking pin shaft.

The mounting plate is also movably inserted with a plate type positioning pin and a plate opening pin; the dustproof cover plate is hinged on the mounting plate, the opening plate pin is used for opening the dustproof cover plate and accurately positioning the locking assembly, when the hydraulic butt joint conversion platform is connected with an accessory, the piston rod is recovered, the end part of the opening plate pin extends out of the mounting plate, and the dustproof cover plate is jacked up; the dust guard is used for covering the quick-insertion female connector and the circuit female connector; the plate-type locating pin is sleeved with a spring and used for supporting the hydraulic integration switching part, and connection can be ensured to be tight. The spring is a powerful compression spring and is positioned between the locking assembly and the quick-change main body. The strong spring can provide large instantaneous thrust for the locking assembly, quickly complete the butt joint of a circuit and an oil way, and ensure the connection stability.

On the basis of the technical scheme, the utility model discloses a reach the convenience of use and the stability of equipment, can also make following improvement to foretell technical scheme:

further, the hydraulic integrated switching part is fixedly arranged on the main body part.

Further, the body part comprises a quick-change body, and the quick-change body comprises a lower butt joint seat and an upper connecting part; the upper connecting part comprises a pair of upper connecting side plates, a pair of shell pin shafts are arranged on the upper connecting side plates, a transition joint A and/or a transition joint B are/is arranged on at least one upper connecting side plate, and a lifting hook is arranged at the end part of the upper connecting side plate; the lower butt joint seat comprises a lower connecting side plate, the rear part of the lower connecting side plate is provided with a connecting clamping groove, the front part of the lower connecting side plate is provided with fastening pin hole plates, and a space is reserved between the fastening pin hole plates on the two sides; the hydraulic integrated switching part is arranged between the two lower connecting side plates, and the locking pin shaft penetrates through a round hole in the fastening pin hole plate.

Furthermore, a positioning pin is arranged on the lower connecting side plate.

Furthermore, the connecting part also comprises a connecting seat, the connecting seat comprises a connecting bottom plate and a pair of connecting lug plates arranged above the connecting bottom plate, connecting clamping hooks are arranged on the connecting lug plates, and two welding pin shafts are arranged between the two connecting lug plates in parallel; the quick connector fixing plate is arranged on the connecting base plate and is positioned between the two welding pin shafts; the middle part of the quick connector fixing plate is provided with a quick-plug male connector and a circuit male connector, and one side of the quick connector fixing plate, which is in butt joint with the quick-plug female connector, is provided with a butt joint positioning pin. The quick connector fixing plate is a plate, and a hole is processed in the middle and used for installing a quick-plug male connector and a circuit male connector.

Meanwhile, the application also provides a corresponding control method of the hydraulic docking conversion platform, which is characterized in that the control method is realized by the following steps:

firstly, a main body part of a hydraulic butt joint conversion platform is connected with a small arm and a connecting rod of an excavator through a shell pin shaft, and a connecting seat of a connecting part is arranged on an accessory;

when the hydraulic butt joint conversion platform works, the main body part and the connecting part of the hydraulic butt joint conversion platform are close to each other; connect the welding round pin axle of connecting seat promptly earlier to the connecting groove on the curb plate down, adjust excavator forearm angle, make the bottom and the connecting seat of main part keep the level, hydraulic oil promotes the flexible realization oil circuit, the circuit connection of structure locking of piston rod of hydraulic pressure integrated switching part, and concrete operating condition is as follows:

the butt joint process: hydraulic oil supplied by a main pump enters a rodless cavity of a hydraulic integrated switching part through a hydraulic control one-way valve to push a piston rod to move from a high-pressure cavity to a low-pressure cavity, the piston rod extends out, a locking pin shaft and a locking assembly of the hydraulic integrated switching part are simultaneously pushed forwards, the locking pin shaft locks a welding pin shaft of a connecting seat to complete mechanical butt joint, the locking assembly moves forwards to be in butt joint with a quick joint fixing plate of the connecting seat to realize oil circuit and circuit connection, meanwhile, hydraulic oil with a rod cavity returns to an oil tank to complete mechanical, electrical and hydraulic integrated switching; meanwhile, if the hydraulic oil is suddenly interrupted, the guide pressure is not started, the hydraulic oil in the rodless cavity cannot return to the oil tank through the hydraulic control one-way valve, the locking pin shaft still keeps a locking state, and the oil circuit and the circuit still keep a connection state, so that safety guarantee is provided for the operation of the accessory;

a separation process: hydraulic oil supplied by a main pump enters a rod cavity of the hydraulic integrated switching part, a pilot is opened at the same time, a piston rod is pushed to move from a high pressure cavity to a low pressure cavity, the piston rod is recovered, a locking pin shaft and a locking assembly of the hydraulic integrated switching part are recovered, the locking pin shaft is separated from a welding pin shaft, the locking assembly is separated from a quick connector fixing plate of a connecting seat, meanwhile, hydraulic oil of a rodless cavity returns to an oil tank through a hydraulic control one-way valve, and machine, electricity and liquid butt joint is interrupted.

The utility model has the advantages that: the problems that the existing quick-change device is time-consuming and labor-consuming to replace, low in operation efficiency, high in failure rate, complex in accessory installation pipeline and the like are solved, and the purpose is to achieve the purpose that the quick replacement of the accessory and the butt joint of the pipeline can be completed within 2-4s without manual operation.

Drawings

Fig. 1 is a schematic perspective view of a hydraulic docking conversion platform according to the present application;

FIG. 2 is a perspective view of the main body;

FIG. 3 is a perspective view of the connection part;

FIG. 4 is a perspective view of the hydraulic integrated switching part;

FIG. 5 is a schematic perspective view of a hydraulic integrated switching part;

FIG. 6 is a schematic structural diagram of a hydraulic cylinder part of the hydraulic integrated switching part;

FIG. 7 is a schematic view of the locking assembly;

FIG. 8 is a schematic view of a pilot operated check valve;

fig. 9 is a schematic view of the installation of the pilot operated check valve.

FIG. 10 is a schematic view of the installation of the pipeline between the locking assembly and transition fitting A and transition fitting B;

FIG. 11 is a schematic view of a docking state of the hydraulic docking conversion platform;

FIG. 12 is a sectional view taken along line A-A of FIG. 11;

FIG. 13 is a schematic view of a motion trace of a locating pin;

FIG. 14 is a hydraulic schematic;

FIG. 15 is a schematic illustration of the docking process;

FIG. 16 is a schematic illustration of the detachment process;

the reference numbers are recorded as follows: 1-a main body part, 2-a connecting part, 3-a hydraulic integrated switching part, 4-a quick-change body, 5-a lifting hook, 6-a positioning pin, 7-a transition joint A, 8-a transition joint B, 9-a grease joint, 10-a connecting seat, 11-a welding pin shaft, 12-a quick joint fixing plate, 13-a butt joint positioning pin, 14-a quick-insert male joint, 15-a circuit male joint, 16-a locking component, 17-a locking pin shaft, 18-an end cover, 19-a piston rod, 20-a limiting block, 21-a limiting pin, 22-a hydraulic control one-way valve, 23-an opening plate pin, 24-a plate type positioning pin, 25-a spring, 26-a dustproof cover plate, 27-a quick-insert female joint, 28-a circuit female joint and 30-an upper connecting part, 31-upper connecting side plate, 32-shell pin shaft, 33-lower butt joint seat, 34-lower connecting side plate, 35-connecting clamping groove, 36-fastening pin hole plate, 37-connecting bottom plate, 38-connecting ear plate and 39-connecting clamping hook;

16.1-cylinder barrel, 16.2-mounting plate, 16.3-check valve mounting hole, 16.4-cylinder barrel connecting oil hole, 16.51-oil inlet hole, 16.52-oil outlet hole, 16.53-circuit female connector mounting hole, 16.54-quick-plug female connector mounting hole, 16.55-plate type positioning pin matching hole and 16.56-split plate pin matching hole.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

A hydraulic docking conversion platform (see FIGS. 1, 3 and 4) comprises a hydraulic integrated switching part 3 and a connecting part 2; the hydraulic pressure integrated switching portion 3 has a quick-insertion female connector 27 and a circuit female connector 28; the connection part 2 has a quick-plug male connector 14 and a circuit male connector 15; the quick-insert female connector 27 is matched with the quick-insert male connector 14, and the circuit female connector 28 is matched with the circuit male connector 15;

the hydraulic integrated switching part 3 (see fig. 4-12) further comprises a locking assembly 16, the locking assembly 16 comprises two side cylinders 16.1 and a mounting plate 16.2 between the two side cylinders 16.1, the mounting plate 16.2 is provided with a one-way valve mounting hole 16.3, four cylinder connecting oil holes 16.4, an oil inlet hole 16.51, an oil return hole 16.52, a circuit female joint mounting hole 16.53 and a quick-plugging female joint mounting opening 16.54, and is also provided with a split pin matching hole 16.56 for plugging a split pin 23 and a plate positioning pin matching hole 16.55 for plugging a plate positioning pin 24, the mounting plate 16.2 is of a convex structure, the one-way valve mounting hole 16.3, the oil inlet hole 16.51, the oil return hole 16.52 and the cylinder connecting oil hole 16.4 are located at the convex part of the mounting plate 16.2, and the others are mounted at the lower part; communicated oil passages are arranged among the oil inlet 16.51, the oil return hole 16.52 and the cylinder connecting oil hole 16.4, the hydraulic control one-way valve 22 is installed at the one-way valve installation hole 16.3, the cylinder connecting oil hole 16.4 is connected with the cylinder 16.1 at two sides through a pipeline, a locking pin shaft 17 and an end cover 18 are respectively installed at two ends of each cylinder 16.1, the piston rod 19 is installed in the cylinder 16.1, the extending end of the piston rod 19 penetrates through the end cover 18, and the limiting block 20 is fixed at the end part of the extending end of the piston rod 19; the quick-insert female connector 27 and the circuit female connector 28 are arranged on the mounting plate 16.2, and the butt joint end is positioned at one side of the locking pin shaft 17; the mounting plate 16.2 is movably inserted with the plate-type positioning pin 24 and the plate-type opening pin 23, that is, the plate-type positioning pin 24 and the plate-type opening pin 23 can move relatively along the radial direction of the insertion hole on the mounting plate 16.2; the dustproof cover plate 26 is hinged on the mounting plate 16.2, and the plate-type positioning pin 24 is sleeved with a spring 25;

the locking pin shaft 17 and the end cover 18 are fixed at two ends of a cylinder 16.1 of the locking assembly 16 through bolts, the piston rod 19 is arranged in the cylinder 16.1 of the locking assembly 16, and the butt joint and mechanical locking of an oil path and a circuit are realized by controlling oil inlet and outlet of a rod cavity and a rodless cavity of the hydraulic integrated switching part 3; the limiting block 20 is arranged at the tail end of the piston rod 19 through a limiting pin 21 and a clamp spring, is fixed on the end surface of the inner side of the main body part 1 in a cold-assembling mode, and plays a role of fixing and supporting the hydraulic integrated switching part 3; the hydraulic control one-way valve 22 is arranged on the locking component 16, when high-pressure oil entering a rodless cavity of the hydraulic integrated switching part 3 is suddenly interrupted, the hydraulic oil of the rodless cavity cannot return to an oil tank through the hydraulic oil when the guide pressure is not opened, the locking pin shaft 17 is still in a locking state, and a circuit and an oil circuit still keep a connection state, so that safety accidents caused by the fact that accessories fall off due to the recovery of the locking pin shaft 17 and the disconnection of the circuit and the oil circuit can be prevented; the dustproof cover plate 26 is hinged and fixed at the front end of the mounting plate 16.2 through bolts and is controlled to be opened and closed through the plate opening pin 23; the plate opening pin 23 and the plate type positioning pin 24 have the functions and also have the positioning and guiding functions, so that the high processing precision and the position precision of the quick-change main body 4 and the locking component 16 can accurately ensure the relative position of the locking component 16 and the main body part 1, and the smooth and accurate butt joint of the quick-connection plug and the circuit connector is facilitated; the quick-plug female connector 27 and the circuit female connector 28 are respectively fixed at corresponding shaft holes on the locking assembly 16, and are butted with corresponding male connectors, so that switching between an oil circuit and a circuit is realized.

The hydraulic pressure integrated switching portion 3 in the above embodiment is mounted on the main body portion 1; the body part 1 comprises a quick-change body 4 (see fig. 1-2), which quick-change body 4 comprises a lower abutment 33 and an upper coupling part 30; the upper connecting part 30 comprises a pair of upper connecting side plates 31, a pair of shell pin shafts 32 are arranged on the upper connecting side plates 31, a transition joint A7 and/or a transition joint B8 are/is arranged on at least one upper connecting side plate 31, and a hook 5 is arranged at the end part of the upper connecting side plate 31; the lower butt joint seat 33 comprises a lower connecting side plate 34, the rear part of the lower connecting side plate 34 is provided with a connecting clamping groove 35, the front part of the lower connecting side plate 34 is provided with a fastening pin hole plate 36, and a space is reserved between the fastening pin hole plates 36 on the two sides; the hydraulic integrated switching part 3 is arranged between the lower connecting side plates 34, and the locking pin shaft 17 penetrates through a round hole in the fastening pin hole plate 36; the lower connecting side plate 34 is provided with a positioning pin 6; the quick-change main body 4 is cast by special alloy, so that the strength is high and the service life is long; the lifting hook 5 is welded on the quick-change main body 4, so that the lifting and the carrying are convenient; a positioning pin 6 is mounted on the quick-change body 4 and functions to guide and define the relative position of the body part 1 and the connecting part 2; the transition joint A7 and the transition joint B8 are fixed on the quick-change main body 4 through bolts, the transition joint A7 and the transition joint B8 are connected with a bridge of an inner pipeline and an outer pipeline, the grease joint 9 is arranged on the quick-change main body 4, and grease is regularly filled into the hydraulic butt-joint conversion platform by using an oil gun in the use process so as to lubricate the locking pin shaft 17 and reduce abrasion

The connecting part 2 further comprises a connecting seat 10 (see fig. 1 and 3), the connecting seat 10 comprises a connecting bottom plate 37 and a pair of connecting lug plates 38 arranged above the connecting bottom plate 37, connecting hooks 39 are arranged on the connecting lug plates 38, and two welding pin shafts 11 are arranged between the two connecting lug plates 38 in parallel; the quick joint fixing plate 12 is arranged on the connecting bottom plate 37, and the quick joint fixing plate 12 is positioned between the two welding pin shafts 11; the middle part of the quick connector fixing plate 12 is provided with a quick plug male connector 14 and a circuit male connector 15, and one side of the quick connector fixing plate 12, which is in butt joint with the quick plug female connector 27, is provided with a butt joint positioning pin 13. The quick-plug male connector 14 and the circuit male connector 15 are respectively fixed at the corresponding shaft holes on the quick-connector fixing plate 12, and are butted with the corresponding female connectors, so that the switching of an oil circuit and a circuit is realized

The control method of the hydraulic docking conversion platform is realized by the following steps:

as shown in fig. 1-16, the utility model discloses a hydraulic pressure butt joint transition platform and its control system are developed, realize the integral type switching of machine, electricity, liquid, greatly reduced the plug-in time of digging machine and accessory, improved the operating efficiency;

firstly, a main body part 1 of the hydraulic butt joint conversion platform is connected with a small arm and a connecting rod of an excavator through a shell pin shaft 32, and a connecting seat 10 of a connecting part 2 is installed on an accessory;

when the hydraulic butt joint conversion platform works, the main body part 1 and the connecting part 2 of the hydraulic butt joint conversion platform are close to each other; a welding pin shaft 11 of the connecting seat is grasped firstly by a connecting clamping groove on the lower connecting side plate 34, the angle of a small arm of the excavator is adjusted, the bottom of the main body part 1 is kept horizontal with the connecting seat 10, hydraulic oil pushes a piston rod 19 of the hydraulic integrated cutting part 3 to stretch out and draw back, the structure is locked, and meanwhile, an oil way and a circuit are connected, and the specific working state is as follows:

the butt joint process: hydraulic oil supplied by a main pump enters a rodless cavity of the hydraulic integrated switching part 3 through a hydraulic control one-way valve 22 to push a piston rod 19 to move from a high-pressure cavity to a low-pressure cavity, the piston rod 19 extends out and props against the end surface of the inner side of the main body part 1 on one side where the piston rod extends out, a locking pin shaft 17 and a locking assembly 16 of the hydraulic integrated switching part 3 are simultaneously pushed forwards, the locking pin shaft 17 locks a welding pin shaft 11 of the connecting seat 10 to complete mechanical butt joint, the locking assembly 16 moves forwards to be in butt joint with a quick joint fixing plate 12 of the connecting seat 10 to realize oil circuit and circuit connection, and meanwhile, the hydraulic oil with a rod cavity returns to an oil tank to complete; meanwhile, if the hydraulic oil is suddenly interrupted, the hydraulic oil in the rodless cavity cannot return to the oil tank through the hydraulic control one-way valve 22 because the pilot pressure is not started, the locking pin shaft 17 still keeps a locking state, and the oil circuit and the circuit still keep a connection state, so that safety guarantee is provided for the operation of the accessory;

a separation process: the hydraulic oil supplied by the main pump enters the rod cavity of the hydraulic integrated switching part 3, the pilot is opened at the same time, the piston rod 19 is pushed to move from the high pressure cavity to the low pressure cavity, the piston rod 19 is recovered, the locking pin shaft 17 and the locking assembly 16 of the hydraulic integrated switching part 3 are recovered, the locking pin shaft 17 is separated from the welding pin shaft 11, the locking assembly 16 is separated from the quick connector fixing plate 12 of the connecting seat 10, meanwhile, the hydraulic oil in the rodless cavity returns to an oil tank through the hydraulic control one-way valve 22, and the machine, electricity and liquid butt joint is interrupted.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. The hydraulic butt joint conversion platform is characterized by comprising a hydraulic integrated switching part (3) and a connecting part (2); the hydraulic integrated switching part (3) is provided with a quick-plug female connector (27) and a circuit female connector (28); the connecting part (2) is provided with a quick-plug male connector (14) and a circuit male connector (15); the quick-plug female connector (27) is matched with the quick-plug male connector (14), and the circuit female connector (28) is matched with the circuit male connector (15);

the hydraulic integrated switching part (3) further comprises a locking assembly (16), the locking assembly (16) comprises two side cylinder barrels (16.1) and a mounting plate (16.2) between the two side cylinder barrels (16.1), a one-way valve mounting hole (16.3), four cylinder barrel connecting oil holes (16.4), an oil inlet hole (16.51), an oil return hole (16.52), a circuit female joint mounting hole (16.53) and a quick-plug female joint mounting hole (16.54) are formed in the mounting plate (16.2); an oil path channel communicated with the oil inlet hole (16.51), the oil return hole (16.52) and the cylinder connecting oil hole (16.4) is arranged between the oil inlet hole (16.51), the oil return hole (16.52) and the cylinder connecting oil hole (16.4), the hydraulic control one-way valve (22) is installed at the one-way valve installation hole (16.3), the cylinder connecting oil hole (16.4) is connected with the cylinders (16.1) at two sides through a pipeline, a locking pin shaft (17) and an end cover (18) are installed at two ends of each cylinder (16.1) respectively, a piston rod (19) is installed in each cylinder (16.1), the extending end of the piston rod (19) penetrates through the end cover (18), and a limiting; the quick-insertion female connector (27) and the circuit female connector (28) are installed on the installation plate (16.2) and the butt joint end is positioned on one side of the locking pin shaft (17).

2. The hydraulic butt joint conversion platform according to claim 1, wherein a plate type positioning pin (24) and a plate opening pin (23) are movably inserted on the mounting plate (16.2); the dustproof cover plate (26) is hinged on the mounting plate (16.2), and the plate-type positioning pin (24) is sleeved with a spring (25).

3. The hydraulic docking station as recited in claim 2, wherein the spring (25) is a high force compression spring.

4. The hydraulic docking conversion platform according to claim 1, wherein the hydraulic integrated switching part (3) is fixedly mounted on the main body part (1).

5. A hydraulic docking conversion platform according to claim 4, characterized in that the body part (1) comprises a quick-change body (4), the quick-change body (4) comprising a lower docking cradle (33) and an upper connection part (30); the upper connecting part (30) comprises a pair of upper connecting side plates (31), a pair of shell pin shafts (32) are arranged on the upper connecting side plates (31), and a transition joint A (7) and/or a transition joint B (8) are/is arranged on at least one upper connecting side plate (31); the lower butt joint seat (33) comprises a lower connecting side plate (34), the rear part of the lower connecting side plate (34) is provided with a connecting clamping groove (35), the front part of the lower connecting side plate (34) is provided with fastening pin hole plates (36), and a space is reserved between the fastening pin hole plates (36) on the two sides; the hydraulic integrated switching part (3) is arranged between the two lower connecting side plates (34), and the locking pin shaft (17) penetrates through a round hole in the fastening pin hole plate (36).

6. The hydraulic butt-joint conversion platform according to claim 5, characterized in that the lower connecting side plate (34) is provided with a positioning pin (6).

7. The hydraulic docking conversion platform according to claim 1, wherein the connecting part (2) further comprises a connecting base (10), the connecting base (10) comprises a connecting bottom plate (37) and a pair of connecting ear plates (38) arranged above the connecting bottom plate (37), a connecting hook (39) is arranged on each connecting ear plate (38), and two welding pin shafts (11) are arranged between the two connecting ear plates (38) in parallel; the quick joint fixing plate (12) is arranged on the connecting base plate (37), and the quick joint fixing plate (12) is positioned between the two welding pin shafts (11); the middle part of the quick connector fixing plate (12) is provided with a quick-plug male connector (14) and a circuit male connector (15), and one side of the quick connector fixing plate (12) butted with the quick-plug female connector (27) is provided with a butting positioning pin (13).

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