Electric excavator with cable take-up device

Abstract

The invention relates to the technical field of electric excavators, in particular to an electric excavator with a cable take-up device.The electric excavator comprises a machine body, a driving cabin, an excavating mechanism, a frame, a take-up roller, a first sliding mechanism, a second sliding mechanism, a connecting mechanism and a limiting mechanism, the driving cabin is arranged at the top of the machine body, and the excavating mechanism is arranged at the top of the machine body; the bottom of the frame is connected with the top of the machine body, the take-up roller is connected with the frame through the first sliding mechanism and the second sliding mechanism, the first sliding mechanism comprises a first sliding groove, a first sliding block and a first limiting ring, the first sliding groove is formed in the inner wall of one side of the frame, and the first sliding block is arranged in the first sliding groove. One end of the first sliding block is in sliding connection with the first sliding groove, the other end of the first sliding block is connected with the first limiting ring, and the electric excavator with the cable take-up device solves the problem that existing equipment is inconvenient to disassemble.

Description

Technical Field

[0001] The present invention relates to the technical field of electric excavators, and particularly to an electric excavator with a cable winding device. Background Art

[0002] As is well known, an electric excavator with a cable winding device is an excavating equipment that combines an electric drive system and cable management technology. An electric excavator is an excavating equipment powered by electric energy, and this equipment is mainly used in earthwork projects, construction, agriculture, and other occasions that require excavation or transportation of soil.

[0003] For the cable winding roller of the existing electric excavator with a cable winding device, it is generally not convenient to separate from the winding frame. When the winding roller is damaged after long-term use and needs to be replaced, it is not convenient to disassemble it for replacement, which is likely to affect the normal operation of the winding mechanism. Summary of the Invention

[0004] (I) Technical Problem to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides an electric excavator with a cable winding device.

[0006] (II) Technical Solution

[0007] To achieve the above object, the present invention provides the following technical solution: An electric excavator with a cable winding device, comprising a machine body, a cab, an excavating mechanism, a frame, and a winding roller. The cab is arranged on the top of the machine body, the excavating mechanism is arranged on the top of the machine body, the bottom of the frame is connected to the top of the machine body, the winding roller is arranged on the frame, and a docking part is provided on the winding roller. The electric excavator further comprises:

[0008] A first sliding mechanism, which includes a first chute, a first slider, and a first limiting ring. The first chute is opened on one inner wall of the frame, one end of the first slider is slidably connected to the first chute, and the other end of the first slider is connected to the first limiting ring;

[0009] A second sliding mechanism, which includes a second chute, a second slider, and a second limiting ring. The second chute is opened on the other inner wall of the frame, one end of the second slider is slidably connected to the second chute, and the other end of the second slider is connected to one end of the second limiting ring;

[0010] The winding roller is connected to the frame through the first sliding mechanism and the second sliding mechanism. The winding roller passes through the first limiting ring and the second limiting ring, and both ends of the winding roller are in contact with both sides of the inner wall of the frame;

[0011] Connecting mechanism, the first sliding mechanism and the second sliding mechanism are connected by the connecting mechanism. The connecting mechanism includes a first bearing, a first threaded column, a first cylinder, a second bearing, a second threaded column, a second cylinder and a connecting block. One end of the first threaded column is connected to the first slider through the first bearing, and one end of the second threaded column is connected to the second slider through the second bearing. The other end of the first threaded column is threadedly connected to one end of the first cylinder, and the other end of the second threaded column is threadedly connected to one end of the second cylinder. The other end of the first cylinder is connected to the other end of the second cylinder through the connecting block;

[0012] Limiting mechanism, limiting mechanisms are provided on both the first sliding mechanism and the second sliding mechanism. The limiting mechanism includes an electric push rod, a clamping block and a clamping groove. There are two limiting mechanisms, and the electric push rods in the two limiting mechanisms are respectively connected to the first slider and the second slider. One end of the clamping block is connected to the electric push rod, and there are two clamping grooves. The other end of the clamping block extends into one of the two clamping grooves.

[0013] To facilitate the overall protection of the frame, the present invention is improved in that a protection mechanism is further provided on the machine body. The protection mechanism includes a protective shell, a handle and an electromagnet. The electromagnets are arranged at the bottom of both sides of the protective shell, the handle is fixedly connected to the top of the protective shell, and the protective shell matches the frame.

[0014] To facilitate the operation of the device, the present invention is improved in that a controller is provided on the top of the machine body, and the controller is electrically connected to the electric push rod.

[0015] To achieve the wear-resistant effect, the present invention is improved in that a wear-resistant layer is provided on the outer wall of the handle, and the wear-resistant layer is fixedly connected to the outer wall of the handle.

[0016] To improve the connection effect, the present invention is improved in that the frame is welded to the machine body.

[0017] To improve the strength of the frame, the present invention is improved in that the frame is made of alloy steel.

[0018] To improve the sliding effect, the present invention is improved in that the first slider matches the first sliding groove, and the second slider matches the second sliding groove.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides an electric excavator with a cable rewinding device, having the following beneficial effects:

[0021] For the electric excavator with a cable take-up device, the take-up roller in this structure is detachably arranged with the frame. When the take-up roller is worn or damaged after long-term use and needs to be replaced, by controlling the first sliding mechanism, the second sliding mechanism and the limiting mechanism, the take-up roller can be disassembled, and then a new take-up roller can be installed, avoiding the impact on the cable take-up work caused by the inconvenient disassembly of the take-up roller and the frame and the inability to replace it in time. The first sliding mechanism and the second sliding mechanism in this structure are also detachably arranged with the frame. When they malfunction and need to be repaired, by controlling the connecting mechanism and the limiting mechanism, they can be separated from the frame, and then they can be sent to a designated place for repair. If the first sliding mechanism and the second sliding mechanism need to be replaced, the connecting mechanism and the limiting mechanism need to be replaced together. By bundling and replacing, the compatibility between related components can be ensured, avoiding further failures caused by the mismatch between different parts. Bundling and replacing can ensure that all related components are new or have been maintained, which helps to maintain the best performance and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 is a partial enlarged structural diagram at A in the present invention;

[0024] Figure 3 is an axonometric structural diagram of the present invention;

[0025] Figure 4 For the present invention Figure 3 is a partial enlarged structural diagram at B in the present invention;

[0026] Figure 5 For the present invention Figure 1 is a front view of the present invention;

[0027] In the figure: 1, body; 2, cockpit; 3, excavation mechanism; 4, winding mechanism; 5, frame; 6, take-up roller; 7, first sliding mechanism; 8, first chute; 9, first slider; 10, first limiting ring; 11, second sliding mechanism; 12, second chute; 13, second slider; 14, second limiting ring; 15, connecting mechanism; 16, first bearing; 17, first threaded column; 18, first cylinder; 19, second bearing; 20, second threaded column; 21, second cylinder; 22, connecting block; 23, limiting mechanism; 24, electric push rod; 25, block; 26, card slot; 27, controller; 28, protection mechanism; 29, protective shell; 30, handle; 31, electromagnet. DETAILED DESCRIPTION OF THE INVENTION

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-5 , an electric excavator with a cable rewinding device, including a machine body 1, a cab 2, an excavation mechanism 3, a frame 5 and a rewinding roller 6. The cab 2 is arranged on the top of the machine body 1, the excavation mechanism 3 is arranged on the top of the machine body 1, the bottom of the frame 5 is connected to the top of the machine body 1, the rewinding roller 6 is arranged on the frame 5, and there is a docking place on the rewinding roller 6. The machine body 1, cab 2 and excavation mechanism 3 in this structure are conventional technologies in the market, and the specific structures and working principles included are not described in detail here. As Figure 1 shown, one end of an external cable is docked with the docking place on the rewinding roller 6, and the cable can be fixed on the rewinding roller 6. After the cable is docked with the docking place, the other end of the cable is connected to the external mains power supply, and the equipment as a whole can be powered. It further includes:

[0030] A first sliding mechanism 7, the first sliding mechanism 7 includes a first chute 8, a first slider 9 and a first limiting ring 10. The first chute 8 is opened on one inner wall of the frame 5, one end of the first slider 9 is slidably connected to the first chute 8, and the other end of the first slider 9 is connected to the first limiting ring 10;

[0031] A second sliding mechanism 11, the second sliding mechanism 11 includes a second chute 12, a second slider 13 and a second limiting ring 14. The second chute 12 is opened on the other inner wall of the frame 5, one end of the second slider 13 is slidably connected to the second chute 12, and the other end of the second slider 13 is connected to one end of the second limiting ring 14;

[0032] The rewinding roller 6 is connected to the frame 5 through the first sliding mechanism 7 and the second sliding mechanism 11. The rewinding roller 6 passes through the first limiting ring 10 and the second limiting ring 14, and both ends of the rewinding roller 6 are in contact with both sides of the inner wall of the frame 5 respectively;

[0033] As Figure 1 shown, the first limiting ring 10 and the second limiting ring 14 can limit the wire roller on the rewinding roller 6 to ensure that the cable is rewound or unreeled at the position between the first limiting ring 10 and the second limiting ring 14.

[0034] Connecting mechanism 15, the first sliding mechanism 7 and the second sliding mechanism 11 are connected by the connecting mechanism 15. The connecting mechanism 15 includes a first bearing 16, a first threaded column 17, a first cylinder 18, a second bearing 19, a second threaded column 20, a second cylinder 21 and a connecting block 22. One end of the first threaded column 17 is connected to the first slider 9 through the first bearing 16. One end of the second threaded column 20 is connected to the second slider 13 through the second bearing 19. The other end of the first threaded column 17 is threadedly connected to one end of the first cylinder 18. The other end of the second threaded column 20 is threadedly connected to one end of the second cylinder 21. The other end of the first cylinder 18 and the other end of the second cylinder 21 are connected by the connecting block 22;

[0035] Limiting mechanism 23, the first sliding mechanism 7 and the second sliding mechanism 11 are both provided with a limiting mechanism 23. The limiting mechanism 23 includes an electric push rod 24, a clamping block 25 and a clamping groove 26. There are two limiting mechanisms 23. The electric push rods 24 in the two limiting mechanisms 23 are respectively connected to the first slider 9 and the second slider 13. One end of the clamping block 25 is connected to the electric push rod 24. There are two clamping grooves 26 opened. The other end of the clamping block 25 extends into one of the two clamping grooves 26.

[0036] As Figure 1 shown, the staff rotates the wire reel 6 by hand to make the wire reel 6 rotate, so that the cable can be wound. The wire reel 6 passes through the first limiting ring 10 and the second limiting ring 14, so that the wire reel 6 can rotate. Teflon layers are provided on both ends of the wire reel 6 and the inner wall of the frame 5, which can avoid the situation that the wire reel 6 is worn due to long-term contact and rotation with the frame 5.

[0037] When the wire reel 6 is worn after long-term use and needs to be replaced, first, the staff rotates the wire reel 6 to release the cable, and then separates the connection between the cable and the wire reel 6. How to separate the connection between the connection and the cable is well known to those skilled in the art and will not be described in detail here. Start the electric push rod 24 to drive the clamping block 25 to separate from one of the two clamping grooves 26, and then push the first slider 9 and the second slider 13 to make the first slider 9 and the second slider 13 slide on the first chute 8 and the second chute 12 respectively, so that the wire reel 6 is separated from the inner wall of the frame 5, and the clamping block 25 is moved to a position matching the other clamping groove 26, and then start the electric push rod 24 to drive the clamping block 25 to extend into the other clamping groove 26. Then the staff pushes the wire reel 6 to separate the wire reel 6 from the first limiting ring 10 and the second limiting ring 14, and the wire reel 6 can be taken out;

[0038] When the first limiting ring 10 and the second limiting ring 14 are damaged and need to be repaired, following the above steps, after removing the wire winding roller 6, simultaneously turn the first threaded column 17 connected to the first slider 9 through the first bearing 16 and the second threaded column 20 connected to the second slider 13 through the second bearing 19, so that part of the first threaded column 17 and the second threaded column 20 are retracted into the first cylinder 18 and the second cylinder 21 on the connecting block 22. Thus, the first slider 9 and the second slider 13 will be separated from the first chute 8 and the second chute 12, and then the first sliding mechanism 7 and the second sliding mechanism 11 can be disassembled, and then they can be repaired. The distance that the first threaded column 17 and the second threaded column 20 extend into the first cylinder 18 and the second cylinder 21 is sufficient for the first slider 9 and the second slider 13 to be separated from the first chute 8 and the second chute 12.

[0039] During the actual use of the above structure, the frame 5 and the components provided on the frame 5 are easily knocked by external objects and damaged. Therefore, a protection mechanism 28 is further provided on the machine body 1. The protection mechanism 28 includes a protection shell 29, a handle 30 and an electromagnet 31. The electromagnet 31 is arranged at the bottom of both sides of the protection shell 29. The handle 30 is fixedly connected to the top of the protection shell 29. The protection shell 29 matches the frame 5. By covering the frame 5 with the protection shell 29, the electric push rod 24 and the clamping block 25 protruding from the frame 5 will also be covered. When the bottom of the protection shell 29 contacts the top of the machine body 1, the electromagnet 31 just contacts the machine body 1. By starting the electromagnet 31, the electromagnet 31 adsorbs the top of the machine body 1, and then the protection shell 29 can be fixed. The protection shell 29 can protect the frame 5 and the components in the frame 5. The size of the protection shell 29 is sufficient to cover the cable wound on the wire winding roller 6 even if there is a wound cable on the wire winding roller 6. After the bottom of the protection shell 29 contacts the top of the machine body 1, there is still enough space inside the inner wall of the protection shell 29, and the top end of the inner wall of the protection shell 29 will not contact the top of the frame 5 or the wound cable. The part of the machine body 1 in contact with the electromagnet 31 is provided with an iron block to ensure that the electromagnet 31 can adsorb the machine body 1, and no specific description is made here.

[0040] The above equipment is not convenient to operate. To solve this problem, in this embodiment, a controller 27 is provided on the top of the machine body 1. The controller 27 is electrically connected to the electric push rod 24. When the first sliding mechanism 7 and the second sliding mechanism 11 are separated from the frame 5, since the electric push rod 24 in the limiting mechanism 23 is also arranged on the first sliding mechanism 7 and the second sliding mechanism 11, the electric push rod 24 will also be disassembled. During disassembly, the wire of the electric push rod 24 needs to be separated from the wire on the controller 27 to avoid damaging the wire. The connection part of the two wires is not specifically described here. Those skilled in the art of this technology clearly know how to disassemble it, and no specific description is made here.

[0041] The wear resistance of the outer wall of the above-mentioned handle 30 is relatively poor. Therefore, a wear-resistant layer is provided on the outer wall of the handle 30, and the wear-resistant layer is fixedly connected to the outer wall of the handle 30. When the staff's hand contacts the outer wall of the handle 30, through the provided wear-resistant layer, the wear-resistant effect can be achieved, and the situation of the outer wall of the handle 30 being worn after long-term use can be avoided.

[0042] In order to improve the connection effect, in this embodiment, the frame 5 is welded to the machine body 1.

[0043] The strength of the above-mentioned frame 5 is relatively poor. To solve this problem, in this embodiment, the frame 5 is made of alloy steel material, and the alloy steel material has good strength, avoiding the situation of the frame 5 breaking or cracking after long-term use.

[0044] In order to improve the sliding effect, in this embodiment, the first slider 9 matches the first sliding groove 8, and the second slider 13 matches the second sliding groove 12.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric excavator with a cable take-up device, comprising a machine body (1), a cab (2), an excavating mechanism (3), a frame (5) and a take-up roller (6), wherein the cab (2) is arranged on the top of the machine body (1), the excavating mechanism (3) is arranged on the top of the machine body (1), the bottom of the frame (5) is connected to the top of the machine body (1), the take-up roller (6) is arranged on the frame (5), and a docking portion is provided on the take-up roller (6), characterized in that: Also includes: A first sliding mechanism (7), the first sliding mechanism (7) comprising a first sliding groove (8), a first slider (9) and a first limiting ring (10), the first sliding groove (8) being arranged on an inner wall of one side of the frame (5), one end of the first slider (9) being slidably connected to the first sliding groove (8), and the other end of the first slider (9) being connected to the first limiting ring (10); A second sliding mechanism (11), the second sliding mechanism (11) comprising a second sliding groove (12), a second slider (13) and a second limiting ring (14), the second sliding groove (12) being arranged on the inner wall of the other side of the frame (5), one end of the second slider (13) being slidably connected to the second sliding groove (12), and the other end of the second slider (13) being connected to one end of the second limiting ring (14); The wire take-up roller (6) is connected to the frame (5) via the first sliding mechanism (7) and the second sliding mechanism (11); the wire take-up roller (6) passes through the first limiting ring (10) and the second limiting ring (14); and two ends of the wire take-up roller (6) are in contact with two sides of the inner wall of the frame (5); A connecting mechanism (15), wherein the first sliding mechanism (7) and the second sliding mechanism (11) are connected via the connecting mechanism (15), and the connecting mechanism (15) comprises a first bearing (16), a first threaded column (17), a first cylinder (18), a second bearing (19), a second threaded column (20), a second cylinder (21) and a connecting block (22), wherein one end of the first threaded column (17) is connected to the first sliding block (9) via the first bearing (16), one end of the second threaded column (20) is connected to the second sliding block (13) via the second bearing (19), the other end of the first threaded column (17) is threadedly connected to one end of the first cylinder (18), the other end of the second threaded column (20) is threadedly connected to one end of the second cylinder (21), and the other end of the first cylinder (18) is connected to the other end of the second cylinder (21) via the connecting block (22); A limiting mechanism (23), wherein the first sliding mechanism (7) and the second sliding mechanism (11) are both provided with a limiting mechanism (23), wherein the limiting mechanism (23) comprises an electric push rod (24), a clamping block (25) and a clamping slot (26), wherein two limiting mechanisms (23) are provided, wherein the electric push rods (24) in the two limiting mechanisms (23) are respectively connected to the first sliding block (9) and the second sliding block (13), wherein one end of the clamping block (25) is connected to the electric push rod (24), wherein two clamping slots (26) are provided, and wherein the other end of the clamping block (25) extends into one of the two clamping slots (26).

2. The electric excavator with a cable take-up device according to claim 1, characterized in that: The body (1) is also provided with a protection mechanism (28), the protection mechanism (28) comprising a protection shell (29), a handle (30) and an electromagnet (31), the electromagnet (31) being arranged at the bottom of both sides of the protection shell (29), the handle (30) being fixedly connected to the top of the protection shell (29), and the protection shell (29) matching the frame (5).

3. The electric excavator with a cable take-up device according to claim 2, characterized in that: A controller (27) is provided on the top of the machine body (1), and the controller (27) is electrically connected to the electric push rod (24).

4. The electric excavator with a cable take-up device according to claim 3, characterized in that: The outer wall of the handle (30) is provided with a wear-resistant layer, and the wear-resistant layer is fixedly connected to the outer wall of the handle (30).

5. The electric excavator with a cable take-up device according to claim 4, characterized in that: The frame (5) is welded to the machine body (1).

6. The electric excavator with a cable take-up device according to claim 5, characterized in that: The frame (5) is made of alloy steel.

7. The electric excavator with a cable take-up device according to claim 6, characterized in that: The first sliding block (9) matches the first sliding groove (8), and the second sliding block (13) matches the second sliding groove (12).

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