A new excavator universal quick-change structure

Abstract

The utility model relates to engineering machinery technical field discloses a new type excavator universal quick change structure, including the connecting frame. The utility model through bidirectional hydraulic cylinder carries out kinetic energy supply, and the support plate supports bidirectional hydraulic cylinder, when the rotary block is placed in the top of the operation tool that needs to be replaced, bidirectional hydraulic cylinder drives the movement of connecting block, and connecting block draws the connecting plate through the fixed link, and the connecting plate rotates around the fixed link and drives connecting plate no.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a novel universal quick-change structure for excavators. Background Technology

[0002] Excavators are heavy machinery commonly used in the field of engineering construction. Their core functions are to excavate and transport earth and stone and complete various heavy operations. They are widely used in construction, mining, road construction, farmland irrigation, disaster relief and other scenarios. Their most typical operating scenarios include excavating foundation pits and dredging rivers on construction sites, or stripping surface soil and loading ore in mines. They can also be used with hydraulic breakers to break hard rocks and with grab buckets to grab steel or wood. They are a multi-functional main engineering equipment.

[0003] In existing excavators, when changing the front working tool, the operator needs to constantly fine-tune the height, angle, and forward and backward distance of the robotic arm to align the connection point between the robotic arm and the tool. Repeated starting and stopping, and fine-tuning the robotic arm, will also aggravate the wear and tear on the hydraulic system and mechanical joints, shorten the service life of the equipment, and increase the later maintenance costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a novel universal quick-change structure for excavators.

[0005] This utility model is achieved by the following technical solution: a novel excavator universal quick-change structure, including a connecting frame, a quick-change component is provided at the bottom of the connecting frame, and a rotating component is provided inside the connecting frame; The quick-change assembly includes a rotating block, with a guide groove on the inner wall of the rotating block. A support plate is fixedly connected to the inner wall of the rotating block, and a bidirectional hydraulic cylinder is fixedly connected inside the support plate. A connecting block is fixedly connected to the output end of the bidirectional hydraulic cylinder, and a fixing rod is fixedly connected inside the connecting block. A connecting plate is rotatably connected to the outer wall of the fixing rod. A first fixing rod is rotatably connected to the inner end of the connecting plate away from the fixing rod. A first connecting plate is fixedly connected to the outer wall of the first fixing rod, and a locking ring is fixedly connected to the outer wall of the first connecting plate. The locking ring is slidably connected to the outer wall of the rotating block.

[0006] Through the above technical solution, the connecting plate drives the locking ring to slide along the outer wall of the guide groove opened on the inner wall of the rotating block. At this time, the connecting plate rotates 90 degrees with the locking ring as the center, thereby realizing the quick locking of the working tool. There is no need for personnel to repeatedly adjust the connection position between the robotic arm and the tool, which improves the connection efficiency, reduces the wear of the mechanical joints, and increases the service life of the robotic arm. At the same time, the electronic control unit on the excavator locks the bidirectional hydraulic cylinder to prevent the tool from falling off accidentally.

[0007] As a further improvement to the above solution, the rotating component includes a rotating groove, which is formed inside the connecting frame, and a rotating ring is rotatably connected to the outer wall of the rotating groove.

[0008] As a further improvement to the above solution, a toothed ring is fixedly connected to the outer wall of the rotating ring, and a connecting plate two is fixedly connected to the bottom of the toothed ring.

[0009] As a further improvement to the above solution, the connecting plate two is fixedly connected to the top of the rotating block, the gear ring is meshed with a gear, and a rotating rod is fixedly connected inside the gear.

[0010] As a further improvement to the above solution, the rotating rod is rotatably connected inside the connecting frame, and a hydraulic motor is fixedly connected to the end of the rotating rod away from the gear.

[0011] As a further improvement to the above solution, a support plate is fixedly connected to the outer wall of the hydraulic motor, and the support plate is fixedly connected to the top of the connecting frame.

[0012] As a further improvement to the above solution, an oil pipe is internally connected to the hydraulic motor, and a quick connector is connected to the end of the oil pipe away from the hydraulic motor.

[0013] Through the above technical solution, the hydraulic motor drives the gear to rotate through the rotating rod. The gear meshes with the gear ring for transmission. The bottom of the gear ring is fixedly connected to the second plate, thereby driving the rotating block and the connected tool to rotate synchronously, realizing the universal angle adjustment of the working tool. It can flexibly adapt to different working angle requirements and significantly improve the convenience and accuracy of operation in complex scenarios.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a bidirectional hydraulic cylinder for power supply, supported by a support plate. When the rotating block is placed on top of the tool to be replaced, the bidirectional hydraulic cylinder drives the connecting block to move. The connecting block pulls the connecting plate via a fixed rod, causing the connecting plate to rotate around the fixed rod and, through the fixed rod, drive the connecting plate. This causes the connecting plate to slide along the outer wall of the guide groove on the inner wall of the rotating block. At this point, the connecting plate rotates 90 degrees around the locking ring, thus achieving rapid locking of the tool. This eliminates the need for repeated adjustments to the connection position between the robotic arm and the tool, improving connection efficiency, reducing wear on the mechanical joints, and extending the service life of the robotic arm. Furthermore, the bidirectional hydraulic cylinder is locked via an electronic control unit on the excavator to prevent the tool from accidentally falling.

[0015] This utility model uses a hydraulic motor to drive a gear through a rotating rod. The gear meshes with a gear ring, causing the gear ring to drive a rotating ring to rotate in a groove. A pair of support plates are fixed to the hydraulic motor, and a second connecting plate is fixed to the bottom of the gear ring. The second connecting plate drives the rotating block and the connected tool to rotate synchronously, realizing the universal angle adjustment of the working tool. It can flexibly adapt to different working angle requirements and significantly improve the convenience and accuracy of operation in complex scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the quick-change component structure of this utility model; Figure 3 This is a schematic diagram of the guide groove structure of this utility model; Figure 4 This is a schematic diagram of the rotating component structure of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram of section A in the middle.

[0017] Explanation of key symbols: 1. Connecting frame; 2. Quick-change assembly; 201. Rotating block; 202. Guide groove; 203. Support plate; 204. Two-way hydraulic cylinder; 205. Connecting block; 206. Fixing rod; 207. Connecting plate; 208. Fixing rod one; 209. Connecting plate one; 210. Locking ring; 3. Rotating assembly; 301. Rotating groove; 302. Rotating ring; 303. Gear ring; 304. Connecting plate two; 305. Gear; 306. Rotating rod; 307. Hydraulic motor; 308. Support plate one; 309. Oil pipe; 310. Quick coupling. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Example

[0019] Please combine Figure 1-5 This embodiment discloses a novel excavator universal quick-change structure, including a connecting frame 1, a quick-change component 2 at the bottom of the connecting frame 1, and a rotating component 3 inside the connecting frame 1. The quick-change assembly 2 includes a rotating block 201. A guide groove 202 is provided on the inner wall of the rotating block 201. A support plate 203 is fixedly connected to the inner wall of the rotating block 201. A bidirectional hydraulic cylinder 204 is fixedly connected inside the support plate 203. A connecting block 205 is fixedly connected to the output end of the bidirectional hydraulic cylinder 204. A fixing rod 206 is fixedly connected inside the connecting block 205. A connecting plate 207 is rotatably connected to the outer wall of the fixing rod 206. A fixing rod 208 is rotatably connected to the inner end of the connecting plate 207 away from the fixing rod 206. A connecting plate 209 is fixedly connected to the outer wall of the fixing rod 208. A locking ring 210 is fixedly connected to the outer wall of the connecting plate 209. The locking ring 210 is slidably connected to the outer wall of the rotating block 201.

[0020] The bidirectional hydraulic cylinder 204 drives the connecting block 205 to move. The connecting block 205 pulls the connecting plate 207 through the fixed rod 206. The connecting plate 207 rotates around the fixed rod 206 and drives the connecting plate 209 through the first fixed rod 208. The first connecting plate 209 drives the locking ring 210 to slide along the outer wall of the guide groove 202 opened on the inner wall of the rotating block 201. At this time, the first connecting plate 209 rotates 90 degrees with the locking ring 210 as the center, thereby realizing the quick locking of the working tool. There is no need for personnel to repeatedly adjust the connection position between the robotic arm and the tool, which improves the connection efficiency, reduces the wear of the mechanical joints, and increases the service life of the robotic arm. At the same time, the bidirectional hydraulic cylinder 204 is locked by the electronic control unit on the excavator to prevent the tool from falling accidentally.

[0021] The rotating component 3 includes a rotating groove 301, which is opened inside the connecting frame 1, and a rotating ring 302 is rotatably connected to the outer wall of the rotating groove 301.

[0022] A toothed ring 303 is fixedly connected to the outer wall of the rotating ring 302, and a connecting plate 304 is fixedly connected to the bottom of the toothed ring 303.

[0023] The connecting plate 304 is fixedly connected to the top of the rotating block 201, and the gear ring 303 is meshed with the gear 305. The rotating rod 306 is fixedly connected inside the gear 305.

[0024] The rotating rod 306 is rotatably connected inside the connecting frame 1, and a hydraulic motor 307 is fixedly connected to the end of the rotating rod 306 away from the gear 305.

[0025] A support plate 308 is fixedly connected to the outer wall of the hydraulic motor 307, and the support plate 308 is fixedly connected to the top of the connecting frame 1.

[0026] The hydraulic motor 307 is internally connected to an oil pipe 309, and a quick connector 310 is connected to the end of the oil pipe 309 away from the hydraulic motor 307.

[0027] The hydraulic motor 307 drives the gear 305 to rotate via the rotating rod 306. The gear 305 meshes with the gear ring 303, causing the gear ring 303 to drive the rotating ring 302 to rotate within the rotating groove 301. The support plate 308 fixes the hydraulic motor 307, and the bottom of the gear ring 303 is fixed with the connecting plate 304. The connecting plate 304 drives the rotating block 201 and the connected tool to rotate synchronously, realizing the universal angle adjustment of the working tool. It can flexibly adapt to different working angle requirements and significantly improve the convenience and accuracy of operation in complex scenarios.

[0028] The implementation principle of the novel excavator universal quick-change structure in this application embodiment is as follows: After the connecting frame 1 is connected to the excavator, the kinetic energy is supplied to the bidirectional hydraulic cylinder 204 through the oil circuit inside the excavator. The support plate 203 supports the bidirectional hydraulic cylinder 204. When the rotating block 201 is placed on top of the work tool to be replaced, the bidirectional hydraulic cylinder 204 drives the connecting block 205 to move. The connecting block 205 pulls the connecting plate 207 through the fixing rod 206. The connecting plate 207 rotates around the fixing rod 206 and drives the connecting plate 209 through the fixing rod 208. The connecting plate 209 drives the locking ring 210 to slide along the outer wall of the guide groove 202 opened on the inner wall of the rotating block 201. At this time, the connecting plate 209 rotates 90 degrees with the locking ring 210 as the center, thereby realizing the quick locking of the work tool. There is no need for personnel to repeatedly adjust the connection position of the robotic arm and the tool, which improves the connection efficiency, reduces the wear of the mechanical joints, and improves the service life of the robotic arm. At the same time, the electronic control unit on the excavator locks the bidirectional hydraulic cylinder 204. To prevent tools from accidentally falling, quick connector 310 quickly connects to the excavator's hydraulic circuit. At this time, hydraulic oil supplies power to hydraulic motor 307 through oil pipe 309. Hydraulic motor 307 drives gear 305 to rotate through rotating rod 306. Gear 305 meshes with gear ring 303, causing gear ring 303 to drive rotating ring 302 to rotate in rotating groove 301. Support plate 1 308 fixes hydraulic motor 307. Connecting plate 2 304 is fixed to the bottom of gear ring 303. Connecting plate 2 304 drives rotating block 201 and connected tools to rotate synchronously, realizing universal angle adjustment of the working tool. It can flexibly adapt to different working angle requirements and significantly improve the convenience and accuracy of operation in complex scenarios. The operating principle of hydraulic motor 307 is that the hydraulic pump in the excavator's internal hydraulic system outputs high-pressure hydraulic oil. After the high-pressure hydraulic oil enters hydraulic motor 307 through oil pipe 309, it drives the moving parts inside hydraulic motor 307 to generate rotational torque, thereby driving the output shaft of the motor to rotate, and finally driving the external load to achieve rotation.

[0029] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A novel universal quick-change structure for excavators, characterized in that, Includes a connecting frame (1), a quick-change assembly (2) is provided at the bottom of the connecting frame (1), and a rotating assembly (3) is provided inside the connecting frame (1); The quick-change assembly (2) includes a rotating block (201), the inner wall of which is provided with a guide groove (202), a support plate (203) is fixedly connected to the inner wall of the rotating block (201), a bidirectional hydraulic cylinder (204) is fixedly connected inside the support plate (203), a connecting block (205) is fixedly connected to the output end of the bidirectional hydraulic cylinder (204), a fixing rod (206) is fixedly connected inside the connecting block (205), a connecting plate (207) is rotatably connected to the outer wall of the fixing rod (206), a fixing rod (208) is rotatably connected to the end of the connecting plate (207) away from the fixing rod (206), a connecting plate (209) is fixedly connected to the outer wall of the fixing rod (208), and a locking ring (210) is fixedly connected to the outer wall of the connecting plate (209), and the locking ring (210) is slidably connected to the outer wall of the rotating block (201).

2. The novel excavator universal quick-change structure as described in claim 1, characterized in that: The rotating component (3) includes a rotating groove (301), which is opened inside the connecting frame (1), and a rotating ring (302) is rotatably connected to the outer wall of the rotating groove (301).

3. The novel excavator universal quick-change structure as described in claim 2, characterized in that: A toothed ring (303) is fixedly connected to the outer wall of the rotating ring (302), and a connecting plate (304) is fixedly connected to the bottom of the toothed ring (303).

4. The novel excavator universal quick-change structure as described in claim 3, characterized in that: The connecting plate 2 (304) is fixedly connected to the top of the rotating block (201), the gear ring (303) is meshed with a gear (305), and a rotating rod (306) is fixedly connected inside the gear (305).

5. A novel excavator universal quick-change structure as described in claim 4, characterized in that: The rotating rod (306) is rotatably connected inside the connecting frame (1), and a hydraulic motor (307) is fixedly connected to the end of the rotating rod (306) away from the gear (305).

6. A novel excavator universal quick-change structure as described in claim 5, characterized in that: The hydraulic motor (307) has a support plate (308) fixedly connected to its outer wall, and the support plate (308) is fixedly connected to the top of the connecting frame (1).

7. A novel excavator universal quick-change structure as described in claim 6, characterized in that: The hydraulic motor (307) is internally connected to an oil pipe (309), and a quick connector (310) is connected to one end of the oil pipe (309) away from the hydraulic motor (307).

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