Special bulk cargo lifting appliance and hydraulic control system thereof

Abstract

The utility model relates to a special bulk cargo lifting appliance and a hydraulic control system thereof, the special bulk cargo lifting appliance comprises a rotary table and a main beam arranged at the lower part of the rotary table, a connecting seat is hinged and mounted at the lower part of the rotary table, and an inclined oil cylinder is also hinged and connected between the connecting seat and the rotary table; a horizontal guide rail is arranged on the main beam, the horizontal guide rail is embedded in a sliding groove of the connecting base in a sliding mode, and a lateral movement oil cylinder is connected between the main beam and the connecting base in a hinged mode; a box pressing mechanism and a box pressing oil cylinder which are used for opening and closing a container door are mounted at the left end of the main beam; spin lock mechanisms are installed at the two ends of the main beam. The hydraulic control system is applied to the special bulk cargo lifting appliance. The special lifting appliance hydraulic control system for the bulk cargo and the lifting appliance have the functions of lateral movement, rotation, inclination, lock opening and closing and box door opening and closing control, posture adjustment can be carried out in the bulk cargo carrying process, the functional requirements of stacking precision, material dumping and the like are met, and the stacking carrying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field especially relates to a special hoist for bulk cargo and hydraulic control system thereof. BACKGROUND

[0002] In the process of port container hoisting and rapid stacking, and bulk material such as coal, ore, grain, etc. Handling, often need to adjust the posture of hoisted material, such as stretching, rotating, tilting, side shift and other actions, in order to accurately control the handling position of the material, improve the stacking accuracy, improve the handling efficiency, realize the material dumping and other functions. The existing front end loader often only has simple functions such as rotation, stretching, etc. It cannot meet the adjustment of the posture of the material, affect the stacking accuracy and reduce the handling efficiency, and the function is single. SUMMARY

[0003] The utility model aims at overcoming the above -mentioned insufficient, provide a special hoist hydraulic control system and hoist for bulk cargo, have side shift, rotary, tilt, open and close lock, control box door open and close function, can adjust the posture in the process of bulk cargo handling, satisfy the stacking accuracy and material dumping and other functional requirements, improve the stacking handling efficiency.

[0004] The utility model aims at overcoming the above -mentioned insufficient, provide a special hoist hydraulic control system and hoist for bulk cargo, have side shift, rotary, tilt, open and close lock, control box door open and close function, can adjust the posture in the process of bulk cargo handling, satisfy the stacking accuracy and material dumping and other functional requirements, improve the stacking handling efficiency.

[0005] A special hoist for bulk cargo, containing the rotary mechanism rotation setting on the rotary table of the mounting seat, the main beam of setting in the rotary table lower part, the rotary table lower part articulated mounting has the connecting seat, and still articulated connection has the tilt oil cylinder between the connecting seat and the rotary table, control connecting seat around the articulated point of connecting seat and rotary table left and right tilt action;Horizontal guide rail is equipped on the main beam, and the horizontal guide rail is slidably embedded in the sliding groove of the connecting seat, and the side shift oil cylinder is articulatedly connected between the main beam and the connecting seat, to control the left and right lateral movement of the main beam on the connecting seat;The compression box mechanism for opening and closing the container door is installed on the left end of the main beam, and the compression box mechanism is controlled to open and close the door action by the compression box oil cylinder;Rotary lock mechanism is installed on both ends of the main beam, and the locking and unlocking of the container are controlled by the rotary lock oil cylinder.

[0006] Further, the rotary mechanism contains rotary motor, gear platform engaged with the transmission connection of rotary motor, brake cylinder for braking the rotary motor, the rotary table is controlled to rotate by the rotary motor.

[0007] Further, the tilt oil cylinder contains left tilt oil cylinder and right tilt oil cylinder, and is articulatedly arranged on the left and right sides of the articulated point of the connecting seat and the rotary table respectively.

[0008] Further, the left tilt oil cylinder and the right tilt oil cylinder each have two groups.

[0009] Further, the pressing box mechanism comprises a base fixed on the left end of the main beam, a connecting plate and a pressing box plate hingedly connected to the upper and lower ends of the base respectively, and a connecting rod hingedly connecting the connecting plate and the pressing box plate; the connecting plate is hingedly connected with the pressing box oil cylinder.

[0010] Further, the rotating lock mechanism comprises a gripper rotatably installed on the end of the main beam and controlled in rotation by a rotating lock oil cylinder.

[0011] A hydraulic control system of a special-purpose cargo sling is applied to any one of the special-purpose cargo slings and comprises a rotary valve group, an inclination valve group and a sling lower valve group connected through hydraulic pipelines; the rotary valve group controls the rotary mechanism to rotate; the inclination valve group controls the inclination oil cylinder to drive the connecting seat and the main beam to incline left and right; the sling lower valve group controls the side shift oil cylinder, the pressing box oil cylinder and the rotating lock oil cylinder, thereby controlling the main beam to move left and right on the connecting seat, the pressing box mechanism to open and close the box door, and the locking and unlocking of the container.

[0012] Further, the rotary valve group comprises a brake electromagnetic valve, a rotary electromagnetic reversing valve and a plurality of overflow valves; the brake electromagnetic valve controls the brake oil cylinder to brake the rotary motor of the rotary mechanism; the rotary electromagnetic reversing valve controls the rotary motor to rotate forward and backward, thereby realizing the rotary action.

[0013] Further, the inclination valve group comprises an inclination electromagnetic reversing valve and an inclination on-off valve; the inclination oil cylinder comprises a left inclination oil cylinder and a right inclination oil cylinder; one outlet of the inclination electromagnetic reversing valve is connected with the piston cavity of the right inclination oil cylinder and the piston rod cavity of the left inclination oil cylinder through the inclination on-off valve and a plurality of one-way valves, and the other outlet of the inclination electromagnetic reversing valve is connected with the piston rod cavity of the right inclination oil cylinder and the piston cavity of the left inclination oil cylinder.

[0014] Further, the sling lower valve group comprises a pressing box electromagnetic reversing valve, a side shift electromagnetic reversing valve, a rotating lock electromagnetic reversing valve, a plurality of overflow valves and one-way valves (hydraulic locks); the pressing box electromagnetic reversing valve controls the extension and retraction of the pressing box oil cylinder; the side shift electromagnetic reversing valve controls the extension and retraction of the side shift oil cylinder; and the rotating lock electromagnetic reversing valve controls the extension and retraction of the rotating lock oil cylinder.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] The utility model discloses a special hoist for bulk cargo and hydraulic system thereof, through the rotary mechanism and the rotary valve group's turntable of installation, realize the rotary action of the main beam, set up the tilt cylinder and the tilt valve group control connection seat on the turntable and realize the tilt action of the main beam, through setting up the side shift cylinder between the main beam and the connection seat, realize the side shift action of the main beam, through setting up the pressure box mechanism and the pressure box cylinder on the main beam, realize the opening and closing of the container door, through setting up the spin lock mechanism and the spin lock cylinder on the main beam, realize the opening and locking, have the side shift, the rotary, the tilt, the opening and locking, the control box door opening and closing function, can adjust the posture in the bulk cargo handling process, satisfy the stacking precision and material dumping etc. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic diagram of the special hoist for bulk cargo of the utility model.

[0018] Figure 2 It is the left view structure schematic diagram of the special hoist for bulk cargo of the utility model.

[0019] Figure 3 It is the overhead structure schematic diagram of the special hoist for bulk cargo of the utility model.

[0020] Figure 4 It is the hydraulic element installation structure schematic diagram of the special hoist for bulk cargo of the utility model.

[0021] Figure 5 It is the connection principle diagram of the hydraulic control system of the special hoist for bulk cargo of the utility model.

[0022] Figure 6 It is the rotary valve group hydraulic principle diagram of the hydraulic control system of the special hoist for bulk cargo of the utility model.

[0023] Figure 7 It is the tilt valve group hydraulic principle diagram of the hydraulic control system of the special hoist for bulk cargo of the utility model.

[0024] Figure 8 It is the hoist lower valve group hydraulic principle diagram of the hydraulic control system of the special hoist for bulk cargo of the utility model.

[0025] Among them:

[0026] Mounting seat 1, turntable 2, main beam 3, left tilt cylinder 4, right tilt cylinder 5, pressure box mechanism 6, pressure box cylinder 7, rotary mechanism 8, connection seat 9, horizontal guide rail 10, spin lock cylinder 11, rotary valve group 12, tilt valve group 13, hoist lower valve group 14, side shift cylinder 15, base 61, connecting plate 62, pressure box plate 63, connecting rod 64, rotary motor 81, brake cylinder 82;

[0027] Brake solenoid valve 121, rotary solenoid reversing valve 122, tilt solenoid reversing valve 131, tilt on-off valve 132, pressure tank solenoid reversing valve 141, side shift solenoid reversing valve 142, spin lock solenoid reversing valve 143. DETAILED DESCRIPTION

[0028] EMBODIMENT

[0029] Reference Figures 1-5 The utility model relates to a kind of spreader special for bulk cargo, including rotatingly being set on mounting seat 1 by rotating mechanism 8 rotating platform 2, main beam 3 being set in the lower portion of rotating platform 2;The mounting seat 1 is installed on fork truck or port transport vehicle;The rotating mechanism 8 includes rotating motor 81, gear platform is engaged with rotating motor 81 and is drivenly connected, brake cylinder 82 is braked to rotating motor 81, rotating platform 2 is controlled to make rotating action by rotating motor 81, and the rotating operation of hoisting object is realized;

[0030] Connecting seat 9 is hingedly installed in the lower portion of rotating platform 2, and main beam 3 is translationally and slidably arranged on connecting seat 9;In addition, tilt cylinder is hingedly connected between connecting seat 9 and rotating platform 2, so that left and right tilting action of connecting seat 9 around the hinged point of connecting seat 9 and rotating platform 2 is controlled, and left and right tilting operation of hoisting object is realized;The tilt cylinder includes left tilt cylinder 4 and right tilt cylinder 5, which are respectively hingedly arranged on the left and right sides of the hinged point of connecting seat 9 and rotating platform 2.

[0031] Horizontal guide rail 10 is arranged on main beam 3, and the horizontal guide rail 10 is slidably embedded in the sliding groove of connecting seat 9;In addition, side shift cylinder 15 is hingedly connected between main beam 3 and connecting seat 9, so that left and right lateral movement of main beam 3 on connecting seat 9 is controlled, and left and right side shift operation of hoisting object is realized.

[0032] In addition, pressure tank mechanism 6 for opening and closing container door is installed on the left end of main beam 3, and pressure tank cylinder 7 is used to control the opening and closing action of pressure tank mechanism 6;The pressure tank mechanism 6 includes base 61 fixed on the left end of main beam 3, connecting plate 62 and pressure tank plate 63 hingedly connected on the upper and lower ends of base 61, respectively, and connecting rod 64 hingedly connecting connecting plate 62 and pressure tank plate 63;The connecting plate 62 is hingedly connected with pressure tank cylinder 7;Pressure tank cylinder 7 controls the rotation of connecting plate 62, and then drives connecting rod 64 to rotate pressure tank plate 63, so as to realize the opening and closing function of container door.

[0033] Rotary lock mechanism is installed at both ends of the main girder 3, and the locking and unlocking of the container are controlled by the rotary lock oil cylinder 11; the rotary lock mechanism includes a gripper which is rotatably installed at the end of the main girder 3, and the rotation of the gripper is controlled by the rotary lock oil cylinder 11, and the locking and releasing of the top lock port of the container are realized by the forward and reverse rotation of the gripper, so that the function of quickly hoisting the container is realized, and the rotary lock mechanism is a conventional technology, which is not shown in the drawing;

[0034] The utility model discloses can when hoisting material, carry out the side shift, gyration, left and right inclination operation to material, can also realize the opening and closing door, opening and closing rotary lock function to container, thereby satisfy the multi -pose requirement needed in the process of material handling and stacking, material dumping demand, improve the stacking precision, improve the handling efficiency. The embodiment can be directly applied to the hoisting and stacking of containers, and when bulk cargo material is handled, only needs to install the clamping arm of conventional technology at both ends of the main girder 3.

[0035] Embodiment

[0036] Referring to Figures 5-8 The utility model relates to a kind of hydraulic control system of spreader for bulk cargo, applied to the spreader for bulk cargo in the embodiment 1, include by hydraulic line connection's rotary valve group 12, inclination valve group 13 and spreader lower valve group 14;

[0037] The rotary valve group 12 controls the rotary mechanism 8 to rotate, and includes brake solenoid valve 121, rotary electromagnetic reversing valve 122 and multiple overflow valves;The brake solenoid valve 121 controls the brake cylinder 82 to brake the rotary motor 81 of the rotary mechanism 8;The rotary electromagnetic reversing valve 122 controls the rotary motor 81 to rotate forward and backward, to realize the rotary action;When rotating, Y23 of brake solenoid valve 121 is powered, so that brake cylinder 82 piston rod cavity oil is imported, and the brake of rotary motor 81 is released, while Y22 of rotary electromagnetic reversing valve 122 is powered, so that rotary motor 81 counterclockwise rotates, and pressure oil is returned through overflow valve, to prevent motor overload;If Y23 is powered at the same time, Y21 is powered, then rotary motor 81 clockwise rotates, and pressure oil is returned through overflow valve, to prevent motor overload;When Y23 is de-energized, rotary motor 81 is clamped by brake cylinder 82, and overflow valve provides 4MPa back pressure on return line, so that rotary motor 81 can stop smoothly, to achieve the function of braking;

[0038] The tilt valve group 13 controls the tilt cylinder drive connecting seat 9 and the whole left and right tilt action of the main beam 3, including tilt electromagnetic reversing valve 131, tilt switch valve 132, a plurality of one-way throttle valves; The tilt cylinder includes left tilt cylinder 4 and right tilt cylinder 5; The outlet of the tilt electromagnetic reversing valve 131 is connected with the piston cavity of the right tilt cylinder 5 and the piston rod cavity of the left tilt cylinder 4 through the tilt switch valve 132 and a plurality of one-way valves, respectively; Another outlet of the tilt electromagnetic reversing valve 131 is connected with the piston rod cavity of the right tilt cylinder 5 and the piston cavity of the left tilt cylinder 4, respectively; During tilt operation, Y1 of the tilt electromagnetic reversing valve 131 and Y3 of the tilt switch valve 132 are powered, the pressure oil enters the piston cavity of the left tilt cylinder 4 through the tilt switch valve 132 and the one-way throttle valve, so that the piston rod of the left tilt cylinder 4 extends, the pressure oil enters the piston rod cavity of the right tilt cylinder 5 through the one-way throttle valve, so that the piston rod of the right tilt cylinder 5 retracts, and left tilt is realized, the tilt angle can reach 60 degrees, the position of the container can be adjusted conveniently, and the demand for dumping of bulk cargo is met;

[0039] The spreader lower valve group 14 controls the side shift cylinder 15, the box pressing cylinder 7 and the spin lock cylinder 11, and further controls the left and right lateral movement of the main beam 3 on the connecting seat 9, the opening and closing of the box door of the box pressing mechanism 6, the locking and unlocking of the container, and contains a box pressing electromagnetic reversing valve 141, a side shift electromagnetic reversing valve 142, a spin lock electromagnetic reversing valve 143, a plurality of overflow valves and one-way valves; The box pressing electromagnetic reversing valve 141 controls the extension and retraction of the box pressing cylinder 7; The side shift electromagnetic reversing valve 142 controls the extension and retraction of the side shift cylinder 15; The spin lock electromagnetic reversing valve 143 controls the extension and retraction of the spin lock cylinder 11;

[0040] During side shift operation, Y19 of the side shift electromagnetic reversing valve 142 is powered, pressure oil enters the piston rod cavity of the side shift cylinder 15, the piston rod of the side shift cylinder 15 retracts, and the main beam 3 moves to the left; Y20 is powered, pressure oil enters the piston cavity of the side shift cylinder 15, the piston rod of the side shift cylinder 15 extends, and the main beam 3 moves to the right, Y20 is powered at the same time, and since the circuit is a differential circuit, the right side shift is realized quickly;

[0041] During box pressing operation, Y26 of the box pressing electromagnetic reversing valve 141 is powered, pressure oil enters the piston cavity of the box pressing cylinder 7, the piston rod extends, pushes the box pressing plate 63 of the box pressing mechanism 6 to move downward to the box door of the container, and the box door is closed; When Y25 is powered, pressure oil enters the piston rod cavity of the box pressing cylinder 7, the piston rod retracts, pulls the box pressing plate 63 of the box pressing mechanism 6 to move upward to separate from the box door of the container, and the box door is opened, which cooperates with the tilt action to complete the material dumping;

[0042] When the spin lock works, Y8 of the spin lock electromagnetic reversing valve 143 is electrified, pressure oil enters the piston cavity of the spin lock oil cylinder 11 through the check valve, the piston rod extends to push the pawl of the spin lock mechanism to buckle into the lock hole on the top of the container, so that the pawl is connected with the lock hole of the container, the locking is realized, the connection between the lifting appliance and the container is completed; Y7 is electrified, then the pressure oil enters the piston rod cavity of the spin lock oil cylinder 11 through the check valve, the piston rod retracts to drive the pawl of the spin lock mechanism to unbuckle and separate from the lock hole of the container, the unlocking is realized, and the separation between the lifting appliance and the container is completed.

[0043] Through the above-mentioned hydraulic elements and hydraulic circuits, the side shift, rotation, inclination, locking and unlocking, control box door opening and closing and other functions of the embodiment each have speed control function, meet the accurate control requirements of each action, and each electromagnetic reversing valve can be replaced by a hydraulic control valve or a pneumatic control valve.

[0044] In addition: It should be noted that the above specific embodiments are only one optimization scheme of the patent, and any changes or improvements made by those skilled in the art based on the above concept are within the protection scope of the patent.

Claims

1. A bulk cargo spreader, comprising a turntable (2) arranged on a mounting seat (1) and rotatable by a slewing mechanism (8), and a main beam (3) arranged below the turntable (2), characterized in that: A connecting seat (9) is hingedly mounted on the lower portion of the turntable (2), and a tilting oil cylinder is hingedly connected between the connecting seat (9) and the turntable (2) to control the connecting seat (9) to tilt left and right around the hinge point of the connecting seat (9) and the turntable (2); a horizontal guide rail (10) is provided on the main beam (3), and the horizontal guide rail (10) is slidably embedded in the sliding groove of the connecting seat (9); a side shift oil cylinder (15) is hingedly connected between the main beam (3) and the connecting seat (9) to control the main beam (3) to move left and right on the connecting seat (9); a box pressing mechanism (6) for opening and closing the container door is installed at the left end of the main beam (3), and the box pressing mechanism (6) is controlled to open and close the container door by the box pressing oil cylinder (7); a rotary lock mechanism is installed at both ends of the main beam (3), and the locking and unlocking of the container is controlled by the rotary lock oil cylinder (11).

2. The bulk cargo spreader according to claim 1, characterized in that: The rotary mechanism (8) includes a rotary motor (81), a gear table meshing with the rotary motor (81), and a brake oil cylinder (82) for braking the rotary motor (81), and controls the turntable (2) to perform a rotary action through the rotary motor (81).

3. The bulk cargo spreader according to claim 1, characterized in that: The tilting oil cylinder comprises a left tilting oil cylinder (4) and a right tilting oil cylinder (5), which are respectively hingedly arranged on the left and right sides of the hinge point of the connecting seat (9) and the turntable (2).

4. The bulk cargo spreader according to claim 3, characterized in that: There are two groups of left tilt cylinders (4) and right tilt cylinders (5).

5. The bulk cargo spreader according to claim 1, characterized in that: The box-pressing mechanism (6) comprises a base (61) fixedly mounted on the left end of the main beam (3), a connecting plate (62) and a box-pressing plate (63) respectively hingedly connected to the upper and lower ends of the base (61), and a connecting rod (64) hingedly connecting the connecting plate (62) and the box-pressing plate (63); the connecting plate (62) is hingedly connected to the box-pressing oil cylinder (7).

6. The bulk cargo spreader according to claim 1, characterized in that: The rotary lock mechanism comprises a claw rotatably mounted on the end of the main beam (3), and its rotation is controlled by a rotary lock oil cylinder (11).

7. A hydraulic control system for a bulk cargo spreader, characterized by: The special spreader for bulk cargo used in any one of claims 1 to 6 comprises a rotary valve group (12), a tilting valve group (13) and a spreader lower valve group (14) connected by hydraulic pipelines; the rotary valve group (12) controls the rotary mechanism (8) to perform a rotary action; the tilting valve group (13) controls the tilting cylinder to drive the connecting seat (9) and the main beam (3) to perform a left and right tilting action as a whole; the spreader lower valve group (14) controls the side shift cylinder (15), the box pressing cylinder (7) and the rotary lock cylinder (11) respectively, thereby controlling the main beam (3) to perform a left and right lateral movement on the connecting seat (9), the box pressing mechanism (6) to perform a box door opening and closing action, and controls the locking and unlocking of the container.

8. The hydraulic control system according to claim 7, characterized in that: The rotary valve group (12) includes a brake solenoid valve (121), a rotary solenoid reversing valve (122), and a plurality of overflow valves; the brake solenoid valve (121) controls the brake oil cylinder (82) to brake the rotary motor (81) of the rotary mechanism (8); the rotary solenoid reversing valve (122) controls the rotary motor (81) to rotate forward and reverse to achieve a rotary action.

9. The hydraulic control system according to claim 7, characterized in that: The tilt valve group (13) includes a tilt electromagnetic reversing valve (131) and a tilt switch valve (132); the tilt oil cylinder includes a left tilt oil cylinder (4) and a right tilt oil cylinder (5); one outlet of the tilt electromagnetic reversing valve (131) is connected to the piston chamber of the right tilt oil cylinder (5) and the piston rod chamber of the left tilt oil cylinder (4) through the tilt switch valve (132) and a plurality of one-way valves, respectively; the other outlet of the tilt electromagnetic reversing valve (131) is connected to the piston rod chamber of the right tilt oil cylinder (5) and the piston chamber of the left tilt oil cylinder (4) respectively.

10. The hydraulic control system according to claim 7, characterized in that: The lower valve group (14) of the sling comprises a pressure box electromagnetic reversing valve (141), a side shift electromagnetic reversing valve (142), a rotary lock electromagnetic reversing valve (143), a plurality of overflow valves and a one-way valve; the pressure box electromagnetic reversing valve (141) controls the telescopic movement of the pressure box oil cylinder (7); the side shift electromagnetic reversing valve (142) controls the telescopic movement of the side shift oil cylinder (15); and the rotary lock electromagnetic reversing valve (143) controls the telescopic movement of the rotary lock oil cylinder (11).

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