Hydraulic lifting and turning equipment for mining excavator working device manufacturing

Abstract

The present invention relates to the field of excavator processing equipment, and in particular to a hydraulic lifting and flipping device for manufacturing a working device of a mining excavator, comprising a torsion component and a lifting component for driving the torsion component to lift and move, the torsion component having a U-shaped frame and two horizontal hydraulic cylinders fixedly connected to the U-shaped frame, two telescopic rods being inserted and slidably connected at the ends of the U-shaped frame in parallel, the telescopic ends of the horizontal hydraulic cylinders being horizontally connected to the telescopic rods, and the ends of the two telescopic rods being installed with aligned electromagnet disks, the present invention adopts a torsion component and a lifting component to drive the electromagnet disk to change its angle and position, and drives the telescopic rod to drive the electromagnet disk to move telescopically through the horizontal hydraulic cylinder, so as to fix and adsorb the steel plate for welding to avoid shaking of the steel plate, and the two groups of electromagnet disks are independently telescopically controlled to fix the steel plate in alternating positions, so as to facilitate the fixing of the steel plate with a changed surface.

Description

Technical Field

[0001] The invention relates to the field of excavator processing equipment, in particular to a hydraulic lifting and turning device used for manufacturing a working device of a mining excavator. Background Art

[0002] Excavators are heavy-duty engineering machinery that are widely used in mining projects to carry out excavation work. Buckets, as important working parts of excavators, have a stable force-bearing structure.

[0003] The bucket is formed by shaping and welding steel plates. The steel plates are cut into corresponding shapes, assembled and welded to form the basic structure of the bucket, and then fine-processed to form the finished bucket. Due to the heavy weight of the steel plates, lifting equipment is required to assemble and weld the steel plates manually during the welding process of the bucket. The traditional lifting equipment uses a crane with an electromagnet. The electromagnet is suspended by the crane to absorb the steel plate. The weight of the steel plate is lifted by the crane, and the position of the steel plate is accurately aligned with manual labor before welding.

[0004] The electromagnet is connected to the crane through a soft steel wire, which causes the electromagnet to shake greatly after loading the steel plate, which is not conducive to the splicing and assembly of the steel plate. In addition, the electromagnet only adsorbs the steel plate on one side. When the side needs to be changed, the steel plate needs to be turned over manually and then adsorbed. Due to the heavy weight of the steel plate, the operation is difficult. Summary of the invention

[0005] The purpose of the present invention is to solve the following problems existing in the prior art: the electromagnet is connected to the crane through a soft steel wire, which causes the electromagnet to shake greatly after loading the steel plate, which is not conducive to the splicing and assembly of the steel plate, and the electromagnet only adsorbs the steel plate on one side. When the side needs to be changed, the steel plate needs to be turned over manually and then adsorbed. Due to the heavy weight of the steel plate, the operation is difficult.

[0006] In order to solve the problems existing in the prior art, the present invention provides a hydraulic lifting and turning device for manufacturing a working device of a mining excavator, including a torsion component and a lifting component for driving the torsion component to lift and move, the torsion component has a U-shaped frame and two horizontal hydraulic cylinders fixedly connected to the U-shaped frame, the end of the U-shaped frame is parallelly slidably plugged with two telescopic rods, the telescopic end of the horizontal hydraulic cylinder is horizontally connected to the telescopic rod, and the ends of the two telescopic rods are equipped with aligned electromagnet disks.

[0007] Preferably, the ends of the telescopic rod are parallelly slidably penetrated by four groups of lifting columns, the sliding direction of the lifting columns is perpendicular to the telescopic direction of the telescopic rod, the lifting columns are elastically connected to the telescopic rod through springs, and the electromagnet disk is fixedly connected to the lifting columns.

[0008] Preferably, the U-shaped frame has an empty groove adapted for the telescopic rod, and an elastically retractable connecting component slides in the empty groove. The telescopic end of the horizontal hydraulic cylinder is connected to the telescopic rod through the connecting component. The outer end of the telescopic rod is rotatably provided with an extrusion piece that squeezes the electromagnet disk downward, and the upper part of the extrusion piece is rotatably provided with a connecting rod, and the upper part of the connecting component is rotatably connected to the connecting rod.

[0009] Preferably, the extrusion member comprises a cam, which rotates at the end of the telescopic rod, the lower part of the cam presses and contacts the electromagnet disk, and the upper part of the cam is obliquely fixed with an inclined arm, and the inclined arm is rotatably connected to the connecting rod.

[0010] Preferably, the connecting assembly includes a buffer block, which is fixedly connected to the telescopic end of the horizontal hydraulic cylinder, a connecting handle is fixed to the inner end of the telescopic rod, the connecting handle is elastically slidably plugged into the buffer block through a spring, an ear plate passing through the U-shaped frame is fixed to the top of the buffer block, and the connecting rod is rotatably connected to the ear plate.

[0011] Preferably, a limiting block is fixed on the surface of the buffer block, and the limiting block slides linearly with the U-shaped frame.

[0012] Preferably, a through slot is provided inside one of the lifting columns, a micro switch is installed on the top of the lifting column, a touch portion of the micro switch corresponds to the through slot, an iron block slides elastically in the through slot via a spring, and the micro switch is electrically connected to a warning light.

[0013] Preferably, the lifting assembly includes a vertical frame, a lifting block is vertically slidable on the surface of the vertical frame, a vertical hydraulic cylinder is installed on the top of the vertical frame, and the lifting block is fixedly connected to the telescopic end of the vertical hydraulic cylinder.

[0014] Preferably, the torsion assembly includes a carrier, the carrier is fixedly connected to the lifting block, a rotating hydraulic cylinder is fixed to the surface of the carrier, the U-shaped frame is fixed with an axle rod, the axle rod is rotatably connected to the carrier, the shaft end of the rotating hydraulic cylinder is fixedly connected to the axle rod, and the vertical hydraulic cylinder, horizontal hydraulic cylinder, and rotating hydraulic cylinder are all connected to a hydraulic oil pump assembly through pipelines.

[0015] Preferably, the surface of the shaft is sleeved with a shaft cylinder, the inner wall of the shaft cylinder is sealed and rotated with the outer wall of the shaft cylinder through five groups of equally spaced bearings, four groups of closed loops are formed between the inner wall of the shaft cylinder, the outer wall of the shaft cylinder and the bearings, the loops have oil ports connected to the oil circuits, the two oil supply circuits and two oil return circuits of the hydraulic oil pump assembly are respectively connected to the four loops, the inside of the shaft has four oil circuits that pass through the loops respectively, and the oil inlet circuits and oil return circuits of the two groups of horizontal hydraulic cylinders are correspondingly connected to the four oil circuits through pipelines.

[0016] Compared with the related art, the hydraulic lifting and turning device for manufacturing the working device of the mining excavator provided by the present invention has the following beneficial effects:

[0017] 1. The present invention adopts a torsion assembly and a lifting assembly to drive the electromagnetic iron plate to change the angle and position, and drives the telescopic rod through the horizontal hydraulic cylinder to drive the electromagnetic iron plate to move telescopically, so that the electromagnetic iron plate can fix and adsorb the steel plate for welding to avoid the shaking of the steel plate. In addition, the two groups of electromagnetic iron plates are independently telescopically controlled to alternately fix the steel plate, which is convenient for fixing the steel plate;

[0018] 2. Through the elastic expansion and contraction of the buffer block and the telescopic rod, the connecting rod is used to drive the cam to rotate, so that the electromagnetic disk has a range of motion in the direction perpendicular to the steel plate, avoiding the electromagnetic disk from rubbing against the steel plate during horizontal movement;

[0019] 3. By forming multiple mutually rotating and sealed loops between the shaft tube and the shaft rod, the hydraulic oil circuit of the horizontal hydraulic cylinder can be rotated and sealed, thus overcoming the rotation oil guide failure of the horizontal hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the connection structure between the U-shaped frame and the torsion assembly of the present invention;

[0022] Figure 3 It is a schematic diagram of the connection structure between the horizontal hydraulic cylinder and the telescopic rod of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the connection assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the installation structure of the electromagnet disk of the present invention;

[0025] Figure 6 It is a schematic diagram of the cam installation structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the iron block installation structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the oil circuit connection between the horizontal hydraulic cylinder and the hydraulic oil pump assembly of the present invention.

[0028] Numbers in the figure: 1. Stand; 2. Vertical hydraulic cylinder; 3. Lifting block; 4. Carrier; 5. Rotating hydraulic cylinder; 6. Shaft rod; 7. U-shaped frame; 8. Horizontal hydraulic cylinder; 9. Electromagnetic iron plate; 10. Hydraulic oil pump assembly; 11. Telescopic rod; 12. Connecting rod; 13. Buffer block; 14. Limit block; 15. Connecting handle; 16. Ear plate; 17. Lifting column; 18. Oblique arm; 19. Micro switch; 20. Warning light; 21. Cam; 22. Iron block; 23. Shaft tube; 24. Ring; 25. Oil port; 26. Oil channel. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] Embodiment 1

[0032] like Figure 1-3 As shown in 5, a hydraulic lifting and turning device for manufacturing a working device of a mining excavator is provided, which is driven by a torsion component and a lifting component as a movable driving basis;

[0033] The lifting assembly includes a stand 1, the stand 1 is fixed on the ground of the processing part, a lifting block 3 is vertically slid on the surface of the stand 1, a vertical hydraulic cylinder 2 is fixedly installed on the top of the stand 1, and the telescopic end of the vertical hydraulic cylinder 2 is vertically fixed downward and connected to the lifting block 3;

[0034] The torsion assembly includes a carrier 4, the carrier 4 is fixedly connected to the side of the lifting block 3, a rotary hydraulic cylinder 5 is fixedly installed in the carrier 4, a shaft 6 is rotatably connected to the carrier 4, and the shaft end of the rotary hydraulic cylinder 5 is fixedly connected to the shaft 6;

[0035] The U-shaped frame 7 is fixed to the end of the shaft rod 6, and the two parallel parts of the U-shaped frame 7 are provided with empty grooves penetrating the ends, and the telescopic rod 11 is slidably inserted in the empty grooves. The two horizontal hydraulic cylinders 8 are horizontally fixed to the ends of the U-shaped frame 7 and are parallel to the shaft rod 6. The telescopic ends of the horizontal hydraulic cylinders 8 are inserted into the empty grooves to connect the telescopic rod 11. The ends of the telescopic rod 11 are parallelly slidably penetrated with four groups of lifting columns 17. The sliding direction of the lifting columns 17 is perpendicular to the telescopic direction of the telescopic rod 11. The lifting columns 17 are elastically connected to the telescopic rod 11 through springs. The electromagnetic disk 9 is fixedly connected to the lifting column 17, and the two groups of electromagnetic disks 9 are parallel and aligned;

[0036] The vertical hydraulic cylinder 2, the horizontal hydraulic cylinder 8, and the rotary hydraulic cylinder 5 are all connected to the hydraulic oil pump assembly 10 through pipelines;

[0037] After the electromagnetic disk 9 is energized, it generates magnetic force to absorb the steel plate material. The lifting block 3 slides and rises along the vertical frame 1 through the extension and contraction of the vertical hydraulic cylinder 2 to adjust the height position of the electromagnetic disk 9. The U-shaped frame 7 is driven to rotate by the rotating hydraulic cylinder 5 to adjust the angle position of the electromagnetic disk 9, so that the electromagnetic disk 9 absorbs the steel plate for positioning and assembly, and then the steel plate is welded with high precision.

[0038] One of the telescopic rods 11 is extended by the horizontal hydraulic cylinder 8, and the electromagnet disk 9 at the end of the telescopic rod 11 is used to adsorb the steel plate. The other telescopic rod 11 is retracted. When the steel plate needs to be changed, the other horizontal hydraulic cylinder 8 is driven to extend so that the electromagnet disk 9 at its end reaches the other side of the steel plate, and then the steel plate is adsorbed by electricity, and then the circuit of the first electromagnet disk 9 is disconnected to make its magnetic force disappear, and then the telescopic rod 11 is driven to retract by the horizontal hydraulic cylinder 8 to achieve the adsorption of the changed surface of the steel plate, and then the U-shaped frame 7 is driven to rotate by the rotary hydraulic cylinder 5 to make the electromagnet disk 9 change position, and the steel plate is suspended and adsorbed;

[0039] Embodiment 2

[0040] like Figure 3-6 As shown, a buffer block 13 is slid in the empty groove of the U-shaped frame 7, a connecting handle 15 is fixed at the inner end of the telescopic rod 11, and the connecting handle 15 is elastically slidably plugged with the buffer block 13 through a spring. An ear plate 16 that passes through the U-shaped frame 7 is fixed on the top of the buffer block 13, and the connecting rod 12 is rotatably connected to the ear plate 16. A cam 21 is rotated at the end of the telescopic rod 11, and an inclined arm 18 is obliquely fixed on the upper part of the cam 21. The inclined arm 18 is rotatably connected to the other end of the connecting rod 12, and a limit block 14 is fixed on the surface of the buffer block 13, and the limit block 14 slides linearly with the U-shaped frame 7.

[0041] In the initial state, the electromagnetic disk 9 is attached to the surface of the telescopic rod 11 by the elastic force of the spring, and the cam 21 is squeezed and deflected by the electromagnetic disk 9, so that the inclined arm 18 is tilted to the side of the connecting rod 12. When the telescopic rod 11 pushes the electromagnetic disk 9 to extend, the buffer block 13 is pushed to move linearly in the empty slot by the telescopic movement of the horizontal hydraulic cylinder 8. The elastic force of the spring keeps a certain elastic distance between the connecting handle 15, the limit block 14 and the buffer block 13. When the horizontal hydraulic cylinder 8 pushes the telescopic rod 11 to be fully extended, the sliding of the limit block 14 blocks the telescopic rod 11. The rod 11 stops moving, while the horizontal hydraulic cylinder 8 continues to push the buffer block 13 to move, and the buffer block 13 and the connecting handle 15 overcome the elastic force and shrink, thereby reducing the distance from the ear plate 16 to the inclined arm 18. The connecting rod 12 pushes the inclined arm 18 to deflect to the other side, so that the cam 21 rotates and squeezes the electromagnet disk 9. The electromagnet disk 9 overcomes the elastic force and sticks to the steel plate under the guidance of the lifting column 17, so that the electromagnet disk 9 has a movement range perpendicular to the steel plate, and cooperates with the horizontal telescopic control of the electromagnet disk 9 to avoid friction between the electromagnet disk 9 and the steel plate during the adjustment process.

[0042] Embodiment 3

[0043] like Figure 5 and Figure 7 As shown, a through slot is provided inside one of the lifting columns 17, a micro switch 19 is installed on the top of the lifting column 17, the touch portion of the micro switch 19 corresponds to the through slot, an iron block 22 is elastically slid in the through slot through a spring, the micro switch 19 is electrically connected to a warning light 20, and the warning light 20 is installed at the end of the telescopic rod 11;

[0044] When the electromagnet disk 9 is not in working state, the iron block 22 is squeezed by the elastic force against the touch end of the micro switch 19, and the micro switch 19 disconnects the circuit of the warning light 20 when pressed. When the electromagnet disk 9 is powered on, the magnetic force it generates attracts the iron block 22 to compress the spring away from the micro switch 19, the touch of the micro switch 19 is released, and the circuit of the warning light 20 is turned on. The warning light 20 is used to indicate the working state of the electromagnet disk 9.

[0045] Embodiment 4

[0046] like Figure 2 and Figure 8 As shown, a shaft cylinder 23 is sleeved on the surface of the shaft rod 6, and the inner wall of the shaft cylinder 23 is sealed and rotated with the outer wall of the shaft rod 6 through five groups of equally spaced bearings, and four groups of closed annular channels 24 are formed between the inner wall of the shaft cylinder 23, the outer wall of the shaft rod 6 and the bearings. The annular channels 24 have oil ports 25 connected to the oil circuits. The two oil supply circuits and two oil return circuits of the hydraulic oil pump assembly 10 are respectively connected to the four annular channels 24. The shaft rod 6 has four oil passages 26 that respectively penetrate the annular channels 24. The oil inlet and oil return circuits of the two groups of horizontal hydraulic cylinders 8 are correspondingly connected to the four oil passages 26 through pipelines.

[0047] Since the rotating hydraulic cylinder 5 drives the horizontal hydraulic cylinder 8 to rotate integrally with the shaft rod 6, it will affect the oil circuit of the horizontal hydraulic cylinder 8. The shaft tube 23 keeps rotating with the shaft rod 6, and the pipeline of the hydraulic oil pump assembly 10 is fixedly connected to the oil port 25 to transmit the hydraulic oil to the annular channel 24. The pipeline will not be affected by the rotation, and the oil channel 26 keeps rotating integrally with the shaft rod 6 and passes through the annular channel 24, so that the oil circuit of the horizontal hydraulic cylinder 8 is connected, which effectively prevents the oil circuit of the horizontal hydraulic cylinder 8 from being affected by rotation and entanglement.

Claims

1. A hydraulic lifting and turning device for manufacturing a working device of a mining excavator, comprising a torsion assembly and a lifting assembly for driving the torsion assembly to lift and move, characterized in that: The torsion assembly comprises a U-shaped frame (7) and two transverse hydraulic cylinders (8) fixedly connected to the U-shaped frame (7); two telescopic rods (11) are inserted and slidably connected to the ends of the U-shaped frame (7) in parallel; the telescopic ends of the transverse hydraulic cylinders (8) are horizontally connected to the telescopic rods (11); and the ends of the two telescopic rods (11) are provided with aligned electromagnet disks (9); The ends of the telescopic rod (11) are slidably connected in parallel to four groups of lifting columns (17), the sliding direction of the lifting columns (17) is perpendicular to the telescopic direction of the telescopic rod (11), the lifting columns (17) are elastically connected to the telescopic rod (11) via springs, and the electromagnet disk (9) is fixedly connected to the lifting columns (17); The U-shaped frame (7) has an empty slot adapted for the telescopic rod (11), an elastically retractable connecting component is slidably arranged in the empty slot, the telescopic end of the horizontal hydraulic cylinder (8) is connected to the telescopic rod (11) via the connecting component, an extrusion piece is rotatably arranged at the outer end of the telescopic rod (11) for downwardly extruding the electromagnet disk (9), a connecting rod (12) is rotatably arranged at the upper part of the extrusion piece, and the upper part of the connecting component is rotatably connected to the connecting rod (12); The extrusion member comprises a cam (21), the cam (21) rotates at the end of the telescopic rod (11), the lower part of the cam (21) presses and contacts the electromagnet disk (9), and the upper part of the cam (21) is tiltedly fixed with an inclined arm (18), and the inclined arm (18) is rotatably connected to the connecting rod (12); The connection assembly comprises a buffer block (13), the buffer block (13) is fixedly connected to the telescopic end of the horizontal hydraulic cylinder (8), a connection handle (15) is fixed to the inner end of the telescopic rod (11), the connection handle (15) is elastically slidably plugged with the buffer block (13) through a spring, an ear plate (16) passing through the U-shaped frame (7) is fixed to the top of the buffer block (13), and the connecting rod (12) is rotatably connected to the ear plate (16); A through slot is provided inside one of the lifting columns (17), a micro switch (19) is installed on the top of the lifting column (17), a touch portion of the micro switch (19) corresponds to the through slot, an iron block (22) slides elastically in the through slot via a spring, and the micro switch (19) is electrically connected to a warning light (20); The lifting assembly comprises a vertical frame (1), a lifting block (3) is vertically slidable on the surface of the vertical frame (1), a vertical hydraulic cylinder (2) is installed on the top of the vertical frame (1), and the lifting block (3) is fixedly connected to the telescopic end of the vertical hydraulic cylinder (2); The torsion assembly comprises a carrier (4), the carrier (4) is fixedly connected to the lifting block (3), a rotary hydraulic cylinder (5) is fixed to the surface of the carrier (4), a shaft (6) is fixed to the U-shaped frame (7), the shaft (6) is rotatably connected to the carrier (4), the shaft end of the rotary hydraulic cylinder (5) is fixedly connected to the shaft (6), and the vertical hydraulic cylinder (2), the horizontal hydraulic cylinder (8), and the rotary hydraulic cylinder (5) are all connected to a hydraulic oil pump assembly (10) via pipelines; The surface of the shaft rod (6) is sleeved with a shaft cylinder (23), and the inner wall of the shaft cylinder (23) is sealed and rotated with the outer wall of the shaft rod (6) through five groups of equally spaced bearings. Four groups of closed annular channels (24) are formed between the inner wall of the shaft cylinder (23), the outer wall of the shaft rod (6) and the bearings. The annular channels (24) have oil ports (25) connected to the oil circuits. The two oil supply circuits and two oil return circuits of the hydraulic oil pump assembly (10) are respectively connected to the four annular channels (24). The shaft rod (6) has four oil channels (26) passing through the annular channels (24) respectively. The oil supply circuits and oil return circuits of the two groups of the horizontal hydraulic cylinders (8) are correspondingly connected to the four oil channels (26) through pipelines.

2. The hydraulic lifting and turning device for manufacturing a mining excavator working device according to claim 1 is characterized in that: A limit block (14) is fixed on the surface of the buffer block (13), and the limit block (14) slides linearly with the U-shaped frame (7).

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