CN112483750A - Hydraulic rotary type oil way quick-changing device and control method thereof - Google Patents
Hydraulic rotary type oil way quick-changing device and control method thereof Download PDFInfo
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- CN112483750A CN112483750A CN202011330495.6A CN202011330495A CN112483750A CN 112483750 A CN112483750 A CN 112483750A CN 202011330495 A CN202011330495 A CN 202011330495A CN 112483750 A CN112483750 A CN 112483750A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/022—Flow-dividers; Priority valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a hydraulic rotary type oil way quick-change device and a control method thereof. A hydraulic rotary oil way quick-change device comprises a link part used for being connected with an excavator accessory, and is characterized by also comprising a rotary part used for being in butt joint with an excavator small arm and a connecting rod, wherein a main body part is arranged between the rotary part and the link part; the rotary part comprises an adapter, and a rotary mechanism is fixedly arranged on the surface of an adapter base plate of the adapter; the inner ring and the outer ring of the slewing mechanism realize relative rotation through a hydraulic slewing motor; the top of the main body part is provided with an oil separator, the lower part of the main body part is provided with a hydraulic integrated switcher, and the oil separator and the hydraulic integrated switcher are linked by an oil way; the hydraulic integrated switcher is provided with a quick-insertion female joint; the link part is provided with a quick-plug male connector; the quick-insert female joint is used for being butted with the quick-insert male joint. Meanwhile, a control method of the device is also provided.
Description
Technical Field
The invention relates to a hydraulic rotary type oil way quick-changing device and a control method thereof, and belongs to the technical field of conversion butt-joint devices for excavators.
Background
In engineering, the excavator needs to replace different accessories (such as breaking hammers, plum blossom grab buckets, hydraulic shears and other accessories) 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 more serious, and traditional mode of change also makes the tiny particle get into accessory and host computer articulated position mutually easily, leads to its lubrication badly, finally influences the machine life-span. In order to solve the above problems, those skilled in the art have studied a quick-change device, also called a conversion platform, which is a connection device added between the arm and the link of the 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'. However, the existing quick-change device has no rotating function, can be butted with an accessory only by continuously adjusting the angle of the excavator, and is inflexible to operate and time-consuming.
Disclosure of Invention
The invention provides a hydraulic rotary type oil way quick-change device and a control method thereof, aiming at the problem that the connection process of an attachment and an excavator is inflexible by the conventional quick-change device.
The technical scheme for solving the technical problems is as follows: a hydraulic rotary oil way quick-change device comprises a link part used for being connected with an excavator accessory, and is characterized by further comprising a rotary part used for being in butt joint with an excavator forearm and a connecting rod, wherein a main body part is arranged between the rotary part and the link part and fixedly connected with the rotary part, and the main body part and the link part are detachably assembled and installed in an assembling mode; the rotary part comprises an adapter, and a rotary speed reducer is fixedly arranged on the surface of an adapter base plate of the adapter; the inner ring and the outer ring of the rotary speed reducer realize relative rotation through a hydraulic rotary motor; the top of the main body part is provided with an oil separator, the lower part of the main body part is provided with a hydraulic integrated switcher, and the oil separator and the hydraulic integrated switcher are linked by an oil way; the hydraulic integrated switcher is provided with a quick-insertion female joint; the link part is provided with a quick-plug male connector; the quick-insert female joint is used for being butted with the quick-insert male joint. Wherein, the other end of the rotary speed reducer is fixedly arranged on the main body connecting plate of the main body part by adopting bolts.
On the basis of the technical scheme, in order to achieve the convenience of use and the stability of equipment, the invention can also make the following improvements on the technical scheme:
further, a motor control valve block is fixedly installed at an oil port of the hydraulic rotary motor.
Furthermore, a pair of parallel riser of the adapter is arranged on the bottom plate of the adapter, and a pair of shell fixing pins is arranged on the riser of the adapter.
Further, in the hydraulic rotary oil line quick-change device in any one of the above schemes, the main body part includes a main body, the main body includes a main body connecting plate for fixedly connecting with the rotary speed reducer and a pair of switch mounting side plates for mounting the hydraulic integrated switch, the switch mounting side plates are connected with the main body connecting plate through the main body side plates, a locking pin mounting plate is arranged at the front end of the switch mounting side plates, locking pin holes are arranged on the locking pin mounting plate, the locking pin mounting plate is perpendicular to the switch mounting side plates, a connecting bayonet is arranged at the rear end of the switch mounting side plates, and a limit shaft B is arranged on the side surface of the switch mounting; the hydraulic integrated switch is mounted between two switch mounting side plates.
Furthermore, the main body side plates are provided with openings, the two ends of the two main body side plates are connected through the main body sealing plates, and the two main body side plates and the two main body sealing plates form a square box-packed structure.
Furthermore, the hydraulic integrated switcher comprises a valve body A, wherein the valve body A consists of cylinder barrels on two sides and an assembly mounting plate between the two cylinder barrels, and the assembly mounting plate is of a convex structure; an end cover with a middle hole is installed at one end of the cylinder barrel, a locking pin shaft is installed at the other end of the cylinder barrel, the locking pin shaft is provided with a connecting cover fixed with the cylinder barrel, a piston rod is installed in the cylinder barrel, a limiting block is fixedly installed at the end part of the piston rod, which penetrates through the extending end of the end cover, and the limiting block is fixed on the piston rod through a limiting pin; the boss of the component mounting plate is provided with a hydraulic control one-way valve, and the component mounting plate is provided with a quick-insertion female joint.
Furthermore, the main body connecting plate is provided with a middle hole, and the adapter base plate is also provided with a middle hole; the oil separator is arranged in the middle hole of the main body connecting plate, penetrates through the rotary speed reducer and the adapter base plate and is positioned in the center; the end part of the oil distributor core body of the oil distributor is provided with a limiting plate, and the limiting plate is fixedly connected with the adapter base plate.
Furthermore, a pin hole is formed in an extension section of the adapter base plate, which is positioned on the outer side of the adapter vertical plate, a pin hole corresponding to the pin hole in the adapter vertical plate is formed in the main body connecting plate, and the limiting shaft A is inserted into the pin holes in the adapter base plate and the main body connecting plate; the end part of the limiting shaft A is provided with a D-shaped lock pin.
Further, the link part comprises a link seat, the link seat consists of a link seat bottom plate and a pair of link seat vertical plates on the link seat bottom plate, a valve body B is arranged on the link seat bottom plate, the quick-plug male connector is arranged on the valve body B, and link seat clamping grooves for butt joint are formed in the link seat vertical plates; a pair of welding pin shafts is arranged on the two chain joint seat vertical plates, and a butt joint positioning pin is further arranged on the valve body B.
The control method of the hydraulic rotary type oil way quick-change device is characterized in that any one of the hydraulic rotary type oil way quick-change devices is used, before a digging machine is in butt joint with an accessory, a shell pin shaft is used for connecting an adapter with a digging machine small arm and a connecting rod, and a connecting seat is installed on the accessory; during operation, the main part is close to the chain joint seat, and a welding round pin axle of chain joint seat is grabbed earlier to the connection bayonet socket on the switch installation curb plate, and the quick-witted forearm angle is dug in the adjustment, makes the main part bottom keep the level with the chain joint seat, and hydraulic oil promotes the flexible realization structure locking of hydraulic pressure integrated switch piston rod and realizes the oil circuit when plugging into, and specific operating condition is as follows:
1) the butt joint process: hydraulic oil supplied by a main pump enters a rodless cavity of the hydraulic integrated switcher through a hydraulic control one-way valve, a piston rod is pushed to move from a high-pressure cavity to a low-pressure cavity, the piston rod extends out, the hydraulic integrated switcher locks a pin shaft and a valve body B to be pushed forwards simultaneously, the locking pin shaft locks a welding pin shaft on a linking seat to complete mechanical butt joint, the valve body A moves forwards to be in butt joint with the valve body B of the linking seat to realize oil way connection, and meanwhile, the hydraulic oil with a rod cavity returns to an oil tank to complete machine-liquid integrated switching;
2) a separation process: hydraulic oil supplied by a main pump enters a rod cavity of the hydraulic integrated switcher, meanwhile, a reverse oil circuit of the hydraulic control one-way valve is communicated, 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 valve body A of the hydraulic integrated switcher are recovered, the locking pin shaft is separated from a welding pin shaft, the valve body A is separated from a linkage seat valve block B, meanwhile, hydraulic oil in a rodless cavity returns to an oil tank through the hydraulic control one-way valve, and the hydraulic pump is interrupted and is in liquid;
3) forward rotation process: hydraulic oil supplied by a main pump enters a hydraulic rotary motor through a motor control valve block, a pilot is started at the same time to drive the hydraulic rotary motor to rotate, and low-pressure oil in the hydraulic rotary motor returns to an oil tank through the motor control valve block to finish forward rotation;
4) and (3) reversing process: hydraulic oil supplied by the main pump enters the hydraulic rotary motor through the motor control valve block, and meanwhile, a pilot is started to drive the hydraulic rotary motor to rotate, and low-pressure oil in the hydraulic rotary motor returns to the oil tank through the motor control valve block to complete reverse rotation.
The invention 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 rotary oil line quick-change device according to the present application;
FIG. 2 is a schematic view of the structure of the turning part;
FIG. 3 is a perspective view of the main body;
FIG. 4 is a schematic perspective view of the main body;
FIG. 5 is a schematic perspective view of the hydraulic integrated switch;
FIG. 6 is a schematic perspective view of the valve body A;
FIG. 7 is a perspective view of a link portion;
FIG. 8 is a perspective view of the linking base;
fig. 9 is a schematic perspective view of the adapter;
FIG. 10 is a schematic view of the position-limiting shaft for achieving the position-limiting function;
FIG. 11 is a schematic view of the position shaft without the position limiting function;
FIG. 12 is a schematic view of an oil separator mounting structure;
FIG. 13 is a schematic diagram illustrating a quick-change oil-line docking process;
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;
FIG. 17 is a schematic view of a rotation process;
fig. 18 is a schematic view of the rotation process.
The reference numbers are recorded as follows: 1-rotary part, 2-main part, 3-connecting part, 4-adapter, 4.1-adapter base plate, 4.2-adapter base vertical plate, 5-shell pin shaft, 6-rotary speed reducer, 7-rotary motor, 8-motor control valve block, 9-limit shaft A, 10-D type lock pin, 11-oil separator, 12-limit plate, 13-main body, 13.1-main body connecting plate, 13.2-switcher mounting plate, 13.3-main body side plate, 13.4-main body close plate, 13.5-locking pin mounting plate, 13.6-connecting bayonet, 14-opening pin, 15-hydraulic integrated switcher, 15.1-valve body A, 15.1.1-cylinder barrel, 15.1.2-component mounting plate, 15.2-locking pin shaft, 15.2.1-connecting cover, 15.3-end cover, 15.4-piston rod, 15.5-limiting block, 15.6-limiting pin, 15.7-hydraulic control one-way valve, 15.8-quick plug female joint, 16-dust guard, 17-limiting shaft B, 18-linking seat, 18.1-linking seat bottom plate, 18.2-linking seat vertical plate, 18.3-linking seat clamping groove, 19-welding pin shaft, 20-valve body B, 21-quick plug male joint.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The structure of a hydraulic rotary oil way quick-change device is described as follows with reference to the accompanying drawings 1 to 13: the quick-change device comprises a link part 3 used for being connected with an excavator accessory and a rotary part 1 used for being in butt joint with an excavator forearm and a connecting rod, wherein a main body part 2 is arranged between the rotary part 1 and the link part 3, the main body part 2 is fixedly connected with the rotary part 1, and the main body part 2 and the link part 3 are detachably assembled and installed in an assembling mode; the rotary part 1 comprises an adapter 4, a rotary speed reducer 6 is fixedly mounted on the surface of an adapter base plate 4.1 of the adapter 4, a pair of parallel adapter vertical plates 4.2 are arranged on the adapter base plate 4.1, a pair of shell fixing pins 5 are mounted on the adapter vertical plates 4.2, the adapter vertical plates 4.2 are positioned on two sides of the adapter base plate, and a middle hole is formed in the adapter base plate 4.1; the inner ring and the outer ring of the rotary speed reducer 6 realize relative rotation through a hydraulic rotary motor 7, a motor control valve block 8 is fixedly installed at an oil port of the hydraulic rotary motor 7, the inner ring 6 of the rotary speed reducer is fixed at the lower end of the adapter 4 through bolts, the rotary speed reducer adopts a single-row four-point contact ball type structure, and has an external gear type structure, compact structure, light weight, and can bear axial force, radial force and tipping moment at the same time, the hydraulic rotary motor 7 is a low-rotation-speed and large-torque motor, and is stable in operation, 360-degree unlimited free rotation for realizing oil circuit quick change can be realized by adopting a spline connection mode and a gear ring of the rotary speed reducer 6 in a matched mode, the connection mode has large contact area, can bear larger load and has high strength; the motor control valve block 8 is provided with the double balance valves, and the structure can realize the hydraulic braking of the motor when the oil way is interrupted, is safe and stable, and avoids personal injury caused by inertial rotation of accessories; the top of the main body part 2 is provided with an oil separator 11, the lower part of the main body part 2 is provided with a hydraulic integrated switch 15, and the oil separator 11 is linked with the hydraulic integrated switch 15 through an oil way; the hydraulic integrated switcher 15 is provided with a quick-plug female joint 15.8; the link part 3 is provided with a quick-plug male connector 21; the quick-insert female joint 15.8 is used for being butted with the quick-insert male joint 21;
on the basis of the above-mentioned embodiment, the following structural perfections are made:
the main body part 2 comprises a main body 13, the main body 13 comprises a main body connecting plate 13.1 fixedly connected with the rotary speed reducer 6 and a pair of switch mounting side plates 13.2 used for mounting a hydraulic integrated switch 15, the main body connecting plate 13.1 is provided with a middle hole, the switch mounting side plates 13.2 are connected with the main body connecting plate 13.1 through the main body side plates 13.3, the front end of the switch mounting side plates 13.2 is provided with a locking pin mounting plate 13.5, the locking pin mounting plate 13.5 is provided with a locking pin hole, the locking pin mounting plate 13.5 is vertical to the switch mounting side plates 13.2, the rear end of the switch mounting side plates 13.2 is provided with a connecting bayonet 13.6, and the side surface of the switch mounting side plates 13.2 is provided with; the hydraulic integrated switch 15 is mounted between the two switch mounting side plates 13.2; in order to improve the strength of the whole structure, two ends of the two main body side plates 13.3 are connected through the main body sealing plates 13.4, the two main body side plates 13.3 and the two main body sealing plates 13.4 form a square box-packed structure, and meanwhile, in order to facilitate the fixation of bolts and nuts of parts such as an oil separator, openings are formed in the main body side plates 13.3 and the main body sealing plates; the oil separator 11 is arranged at a middle hole of the main body connecting plate 13.1, and the oil separator 11 penetrates through the rotary speed reducer 6 and the adapter base plate 4.1 and is positioned at the center; a limiting plate 12 is arranged at the end part of the oil distributor core body of the oil distributor 11, and the limiting plate 12 is fixedly connected with the adapter base plate 4.1; the limiting plate 12 limits the rotation of the oil distributor core, the lower end of the oil distributor main body is fixed at the upper end of the main body 13 of the main body part 2 by virtue of bolts, the oil distributor core is fixed when the oil circuit is quickly changed and rotated, and the oil distributor main body rotates together with the main body part and the lower part, so that the pipeline can be kept in place in the rotation process, the pipe winding phenomenon is avoided, and the stability of the oil circuit is facilitated; the limiting plate 12 is arranged on the bottom plate of the adapter 4 and is positioned inside the adapter;
the hydraulic integrated switcher 15 comprises a valve body A15.1, wherein the valve body A15.1 consists of cylinder barrels 15.1.1 at two sides and an assembly mounting plate 15.1.2 between the two cylinder barrels 15.1.1, and the assembly mounting plate 15.1.2 is in a convex structure; an end cover 15.3 with a middle hole is arranged at one end of the cylinder barrel 15.1.1, a locking pin shaft 15.2 is arranged at the other end of the cylinder barrel 15.1.1, the locking pin shaft 15.2 is provided with a connecting cover 15.2.1 fixed with the cylinder barrel 15.1.1, the piston rod 15.4 is arranged in the cylinder barrel 15.1.1, a limiting block 15.5 is fixedly arranged at the end part of the extending end of the piston rod 15.4 penetrating through the end cover 15.3, and the limiting block 15.5 is fixed on the piston rod 15.4 through a limiting pin 15.6; a hydraulic control one-way valve 15.7 is arranged on the convex part of the component mounting plate 15.1.2, and a quick-insertion female joint 15.8 is arranged on the component mounting plate 15.1.2; the valve body A15.1, the locking pin shaft 15.2, the end cover 15.3 and the piston rod 15.4 are sealed by a sealing element, and oil inlet and outlet of a rod cavity and a rodless cavity of the hydraulic integrated switcher are controlled to realize butt joint and mechanical locking of oil paths during working; the limiting block 15.5 is mounted at the tail end of the piston rod 15.4 through a limiting pin 15.6 and a clamp spring, is welded on the end face of the inner side of the main body 13 and plays a role of fixing and supporting the hydraulic integrated switcher; the hydraulic control one-way valve 15.7 is arranged on the valve body A15.1, when high-pressure oil entering a rodless cavity of the hydraulic integrated switcher is suddenly interrupted, the rodless cavity hydraulic oil cannot return to an oil tank through the rodless cavity hydraulic oil because the guide pressure is not opened, the locking pin shaft is still in a locking state, and an oil way still keeps a connection state, so that safety accidents caused by falling of accessories due to recovery of the locking pin shaft and cutting of the oil way can be prevented; the quick-insertion female joint 15.8 is fixed at the corresponding shaft hole of the valve body A15.1 and is in butt joint with the corresponding male joint, so that the switching of an oil way and a circuit is realized;
furthermore, a pin hole is formed in an extension section of the adapter base plate 4.1, which is positioned on the outer side of the adapter base vertical plate 4.2, a pin hole corresponding to the pin hole in the adapter base vertical plate 4.2 is formed in the main body connecting plate 13.1, and the limiting shaft A9 is inserted into the pin holes in the adapter base plate 4.1 and the main body connecting plate 13.1; the end part of the limiting shaft A9 is provided with a D-shaped lock pin 10; the limiting shaft A9 penetrates through a bottom plate shaft hole of the adapter seat 4 and a shaft hole of a connecting plate 13.1 of the main body 13, the upper end of the limiting shaft A9 is embedded into a welding sleeve of the adapter seat 4, the depth of the embedding of the limiting shaft A9 into the welding sleeve can be changed by adjusting the installation angle of the flat table, when the flat table is embedded into a deep groove of the welding sleeve, the limiting shaft A9 penetrates through the shaft hole of the connecting plate 13.1 of the main body 13, the D-shaped lock pin 10 is inserted into a pin hole below the limiting shaft A9 and locked, so that the flat table is embedded into a shallow groove of the welding sleeve if the flat table rotates for 90 degrees, the limiting shaft A9 cannot penetrate through the shaft hole of the connecting plate 13.1 of the main body 13, the limiting is cancelled, the D-shaped lock pin 10 is inserted into a pin hole above the limiting shaft A9 and locked, the limiting shaft;
further, the linking part 3 comprises a linking seat 18, the linking seat 18 is composed of a linking seat bottom plate 18.1 and a pair of linking seat vertical plates 18.2 on the linking seat bottom plate 18.1, a valve body B20 is arranged on the linking seat bottom plate 18.1, a quick-plug male connector 21 is installed on the valve body B20, and a linking seat clamping groove 18.3 for butt joint is arranged on the linking seat vertical plate 18.2; a pair of welding pin shafts 19 is arranged on the two chain connecting seat vertical plates 18.2, and a butt joint positioning pin 22 is also arranged on the valve body B20; the welding pin shaft 19 is welded on the linking seat 18 and used for completing mechanical connection; the valve body B20 is fixed inside the linking seat 18 through bolts; the butt joint positioning pin 22 is cold-mounted on the valve body B20 and plays a role in positioning and guiding, and is firstly in butt joint with a corresponding pin hole on the valve body A15.1 in the butt joint process of the valve body A15.1 and the valve body B20 of the main body part 2 to ensure the accuracy of the position, and then in butt joint of an oil way; the quick-insertion male joint 21 is fixed at a corresponding shaft hole on the valve body B20, and is in butt joint with a corresponding female joint, so that the switching of oil paths is realized.
Aiming at the hydraulic rotary type oil way quick-change device in the embodiment, and referring to the attached drawings 14-18, the application also provides a corresponding control method, before the excavator is butted with an accessory, firstly, a shell pin shaft 5 is used for connecting an adapter 4 with the excavator forearm and a connecting rod, and a link seat 18 is arranged on the accessory; during operation, main part 13 is close to linking seat 18, and a welding pin 19 of linking seat 18 is grabbed earlier to connecting bayonet 13.6 on the switch installation curb plate 13.2, and the adjustment is dug quick-witted forearm angle, makes main part 13 bottom and linking seat 18 keep the level, and hydraulic oil promotes the flexible realization structure locking of hydraulic pressure integrated switch 15 piston rod 15.4 and realizes the oil circuit when refuting, and concrete operating condition is as follows:
1) the butt joint process: hydraulic oil supplied by a main pump enters a rodless cavity of a hydraulic integrated switch 15.1 through a hydraulic control one-way valve 15.7 to push a piston rod 15.4 to move from a high-pressure cavity to a low-pressure cavity, the piston rod 15.4 extends out, a locking pin shaft 15.2 and a valve body B20 of the hydraulic integrated switch are simultaneously pushed forwards, the locking pin shaft 15.2 locks a welding pin shaft 19 on a chain joint seat 18 to complete mechanical butt joint, the valve body A15.1 moves forwards to be in butt joint with the valve body B20 of the chain joint seat 18 to realize oil circuit connection, and meanwhile, the hydraulic oil with a rod cavity returns to an oil tank to complete machine-liquid 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 way still keeps a connection state, so that safety guarantee is provided for the operation of the accessory;
2) a separation process: hydraulic oil supplied by a main pump enters a rod cavity of the hydraulic integrated switcher 15, meanwhile, a reverse oil circuit of a hydraulic control one-way valve is communicated, a piston rod 15.4 is pushed to move from a high pressure cavity to a low pressure cavity, the piston rod 15.4 is recovered, a locking pin shaft 15.2 and a valve body A15.1 of the hydraulic integrated switcher 15 are recovered, the locking pin shaft 15.2 is separated from a welding pin shaft 19, the valve body A15.1 is separated from a connecting seat valve block B20, meanwhile, the hydraulic oil in a rodless cavity returns to an oil tank through the hydraulic control one-way valve 15.7, and the machine and the liquid are disconnected;
3) forward rotation process: hydraulic oil supplied by a main pump enters a hydraulic rotary motor 7 through a motor control valve block 8, a pilot is started at the same time to drive the hydraulic rotary motor 7 to rotate, and low-pressure oil in the hydraulic rotary motor 7 returns to an oil tank through the motor control valve block 8 to finish forward rotation; in the process, the hydraulic oil supplied by the main pump is suddenly interrupted, and the loop is interrupted because the pilot pressure is not started, so that the motor realizes hydraulic braking, and personal injury caused by inertial rotation of the accessory is avoided;
4) and (3) reversing process: hydraulic oil supplied by a main pump enters a hydraulic rotary motor 7 through a motor control valve block 8, and meanwhile, a pilot is started to drive the hydraulic rotary motor 7 to rotate, and low-pressure oil in the hydraulic rotary motor 7 returns to an oil tank through the motor control valve block 8 to complete reverse rotation; if the high-pressure oil supplied by the main pump is suddenly interrupted in the process, the loop is interrupted because the pilot pressure is not started, and the motor realizes hydraulic braking, thereby avoiding personal injury caused by inertial rotation of the accessory.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A hydraulic rotary oil way quick-change device comprises a link part (3) connected with an excavator accessory, and is characterized by further comprising a rotary part (1) butted with an excavator forearm and a connecting rod, wherein a main body part (2) is arranged between the rotary part (1) and the link part (3), the main body part (2) is fixedly connected with the rotary part (1), and the main body part (2) and the link part (3) are detachably assembled and installed in an assembling mode; the rotary part (1) comprises an adapter (4), and a rotary speed reducer (6) is fixedly arranged on the surface of an adapter base plate (4.1) of the adapter (4); the inner ring and the outer ring of the rotary speed reducer (6) realize relative rotation through a hydraulic rotary motor (7); the top of the main body part (2) is provided with an oil separator (11), the lower part of the main body part (2) is provided with a hydraulic integrated switcher (15), and an oil way is connected between the oil separator (11) and the hydraulic integrated switcher (15); a quick-plug female joint (15.8) is arranged on the hydraulic integrated switcher (15); the link part (3) is provided with a quick-plug male connector (21); the quick-insert female joint (15.8) is used for butt joint with the quick-insert male joint (21).
2. The rotary hydraulic oil circuit quick-change device as claimed in claim 1, wherein a motor control valve block (8) is fixedly mounted at the oil port of the rotary hydraulic motor (7).
3. The rotary hydraulic oil circuit quick-change device according to claim 1, wherein a pair of parallel riser blocks (4.2) are disposed on the adapter base plate (4.1), and a pair of housing fixing pins (5) are mounted on the riser blocks (4.2).
4. Hydraulic rotary oil circuit quick change device according to any claim 1-3, the hydraulic integrated switch is characterized in that the main body part (2) comprises a main body (13), the main body (13) comprises a main body connecting plate (13.1) fixedly connected with the rotary speed reducer (6) and a pair of switch mounting side plates (13.2) used for mounting a hydraulic integrated switch (15), the switch mounting side plates (13.2) are connected with the main body connecting plate (13.1) through the main body side plates (13.3), a locking pin mounting plate (13.5) is arranged at the front end of each switch mounting side plate (13.2), a locking pin hole is formed in each locking pin mounting plate (13.5), each locking pin mounting plate (13.5) is perpendicular to the corresponding switch mounting side plate (13.2), a connecting bayonet (13.6) is arranged at the rear end of each switch mounting side plate (13.2), and a limiting shaft B (17) is arranged on the side surface of each switch mounting side plate (; the hydraulic integrated switch (15) is mounted between two switch mounting side plates (13.2).
5. The rotary hydraulic oil circuit quick-change device according to claim 4, wherein the main body side plate (13.3) is provided with an opening, two ends of the two main body side plates (13.3) are connected through the main body sealing plates (13.4), and the two main body side plates (13.3) and the two main body sealing plates (13.4) form a square box-packed structure.
6. The rotary hydraulic oil circuit quick-change device according to claim 5, wherein the hydraulic integrated switch (15) comprises a valve body A (15.1), the valve body A (15.1) is composed of cylinder barrels (15.1.1) at two sides and a component mounting plate (15.1.2) between the two cylinder barrels (15.1.1), and the component mounting plate (15.1.2) is in a convex structure; an end cover (15.3) with a middle hole is arranged at one end of the cylinder barrel (15.1.1), a locking pin shaft (15.2) is arranged at the other end of the cylinder barrel (15.1.1), the locking pin shaft (15.2) is provided with a connecting cover (15.2.1) fixed with the cylinder barrel (15.1.1), a piston rod (15.4) is arranged in the cylinder barrel (15.1.1), and a limiting block (15.5) is fixedly arranged at the end part of the extending end of the piston rod (15.4) penetrating through the end cover (15.3); the boss of the component mounting plate (15.1.2) is provided with a hydraulic control one-way valve (15.7), and the component mounting plate (15.1.2) is provided with a quick-insertion female joint (15.8).
7. The rotary hydraulic oil circuit quick-change device according to claim 4, wherein the main body connecting plate (13.1) is provided with a central hole, and the adapter base plate (4.1) is also provided with a central hole; the oil separator (11) is arranged at a middle hole of the main body connecting plate (13.1), and the oil separator (11) penetrates through the rotary speed reducer (6) and the adapter base plate (4.1) and is positioned at the center; the end part of the oil distributor core body of the oil distributor (11) is provided with a limiting plate (12), and the limiting plate (12) is fixedly connected with the adapter base plate (4.1).
8. The hydraulic rotary oil way quick-change device according to claim 4, wherein a pin hole is formed in an extension section of the adapter base plate (4.1) located on the outer side of the adapter base vertical plate (4.2), a pin hole corresponding to the pin hole in the adapter base vertical plate (4.2) is formed in the main body connecting plate (13.1), and the limiting shaft A (9) is inserted into the pin holes in the adapter base plate (4.1) and the main body connecting plate (13.1); the end part of the limiting shaft A (9) is provided with a D-shaped lock pin (10).
9. The rotary hydraulic oil circuit quick-change device according to claim 1, wherein the link part (3) comprises a link seat (18), the link seat (18) is composed of a link seat bottom plate (18.1) and a pair of link seat vertical plates (18.2) on the link seat bottom plate (18.1), a valve body B (20) is arranged on the link seat bottom plate (18.1), the quick-plug male joint (21) is installed on the valve body B (20), and a link seat clamping groove (18.3) for butt joint is arranged on the link seat vertical plate (18.2); a pair of welding pin shafts (19) is arranged on the two chain joint seat vertical plates (18.2).
10. A control method of a hydraulic rotary type oil way quick-change device is characterized in that the hydraulic rotary type oil way quick-change device is used, when a digging machine is in butt joint with an accessory, a shell pin shaft (5) is used for connecting an adapter (4) with a digging machine small arm and a connecting rod, and a link seat (18) is installed on the accessory; during operation, main part (13) are close to chain joint seat (18), and a welding pin axle (19) of chain joint seat (18) is grabbed earlier in connection bayonet socket (13.6) on switch installation curb plate (13.2), and the adjustment is dug quick-witted forearm angle, makes main part (13) bottom and chain joint seat (18) keep the level, and hydraulic oil promotes the flexible realization oil circuit of structure locking in hydraulic pressure integrated switch (15) piston rod (15.4) and plugs into, and concrete operating condition is as follows:
1) the butt joint process: hydraulic oil supplied by a main pump enters a rodless cavity of a hydraulic integrated switcher (15.1) through a hydraulic control one-way valve (15.7), a piston rod (15.4) is pushed to move from a high-pressure cavity to a low-pressure cavity, the piston rod (15.4) extends out, a locking pin shaft (15.2) and a valve body B (20) of the hydraulic integrated switcher are simultaneously pushed forwards, the locking pin shaft (15.2) locks a welding pin shaft (19) on a chain connecting seat (18) to complete mechanical butt joint, the valve body A (15.1) moves forwards to be in butt joint with the chain connecting seat (18) and the valve body B (20) to realize oil way joint, meanwhile, the hydraulic oil with a rod cavity returns to an oil tank to complete machine-liquid integrated switching;
2) a separation process: hydraulic oil supplied by a main pump enters a rod cavity of the hydraulic integrated switcher (15), meanwhile, a reverse oil circuit of the hydraulic control one-way valve is communicated, a piston rod (15.4) is pushed to move from a high-pressure cavity to a low-pressure cavity, the piston rod (15.4) is recovered, a locking pin shaft (15.2) and a valve body A (15.1) of the hydraulic integrated switcher (15) are recovered, the locking pin shaft (15.2) is separated from a welding pin shaft (19), the valve body A (15.1) is separated from a linking seat valve block B (20), meanwhile, the hydraulic oil in a rodless cavity returns to an oil tank through the hydraulic control one-way valve (15.7), and the machine is interrupted and the liquid is;
3) forward rotation process: hydraulic oil supplied by a main pump enters a hydraulic rotary motor (7) through a motor control valve block (8), a pilot is started at the same time to drive the hydraulic rotary motor (7) to rotate, and low-pressure oil in the hydraulic rotary motor (7) returns to an oil tank through the motor control valve block (8) to finish forward rotation;
4) and (3) reversing process: hydraulic oil supplied by the main pump enters the hydraulic rotary motor (7) through the motor control valve block (8), meanwhile, a pilot is started to drive the hydraulic rotary motor (7) to rotate, and low-pressure oil in the hydraulic rotary motor (7) returns to an oil tank through the motor control valve block (8) to finish reverse rotation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330495.6A CN112483750A (en) | 2020-11-24 | 2020-11-24 | Hydraulic rotary type oil way quick-changing device and control method thereof |
| AU2021101828A AU2021101828A4 (en) | 2020-11-24 | 2021-04-09 | Hydraulic rotary quick coupling device for oil circuit and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330495.6A CN112483750A (en) | 2020-11-24 | 2020-11-24 | Hydraulic rotary type oil way quick-changing device and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112483750A true CN112483750A (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011330495.6A Pending CN112483750A (en) | 2020-11-24 | 2020-11-24 | Hydraulic rotary type oil way quick-changing device and control method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN112483750A (en) |
| AU (1) | AU2021101828A4 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123385A (en) * | 2021-04-16 | 2021-07-16 | 湖南大学 | Full-automatic quick-change device for emergency rescue engineering equipment |
| CN113445373A (en) * | 2021-05-10 | 2021-09-28 | 武汉利德测控技术有限公司 | Railway ballast excavating gear |
| CN113668630A (en) * | 2021-08-03 | 2021-11-19 | 徐州巴特工程机械股份有限公司 | Hydraulic attachment quick-change mechanism |
-
2020
- 2020-11-24 CN CN202011330495.6A patent/CN112483750A/en active Pending
-
2021
- 2021-04-09 AU AU2021101828A patent/AU2021101828A4/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123385A (en) * | 2021-04-16 | 2021-07-16 | 湖南大学 | Full-automatic quick-change device for emergency rescue engineering equipment |
| CN113445373A (en) * | 2021-05-10 | 2021-09-28 | 武汉利德测控技术有限公司 | Railway ballast excavating gear |
| CN113445373B (en) * | 2021-05-10 | 2023-03-07 | 武汉利德测控技术有限公司 | Railway ballast excavating gear |
| CN113668630A (en) * | 2021-08-03 | 2021-11-19 | 徐州巴特工程机械股份有限公司 | Hydraulic attachment quick-change mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2021101828A4 (en) | 2021-05-27 |
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