A universal quick-change device for excavator with clamping

Abstract

The utility model relates to excavator structure technical field discloses a kind of with the excavator universal quick-change device of clamping, including connecting seat.The utility model is formed rotating connection by fixed rod one of inner wall fixation and hydraulic rod connecting block, and flexible fulcrum is provided for the action of hydraulic rod, ensure that hydraulic power can be adapted subsequent jaw opening angle, when needing to grab material, two hydraulic rods symmetrically arranged with connecting seat center synchronous start, and hydraulic rod output end lengthens or shortens, and output end connecting block fixed in its output end synchronous movement is driven.Output end connecting block inner wall rotating connection's fixed rod two, linear power is converted into the rotary power of jaw, and jaw inner wall rotating connection is in the outer wall of central rod, and central rod is positioned by the limiting seat of outer wall fixation, and limiting seat outer wall rotating connection is in connecting seat surface, when needing to clamp tool, hydraulic rod output end shortens, and jaw is pulled around central rod by output end connecting block and rotates inward.

Description

Technical Field

[0001] This utility model relates to the field of excavator structure technology, and in particular to a universal quick-change device for excavators with clamping function. Background Technology

[0002] Excavators, as common construction machinery, are widely used in fields such as building construction, mining, and road construction. With the diversification of engineering tasks and the increasing complexity of construction environments, traditional excavator operation methods can no longer meet the demands for efficient and multifunctional construction. Especially in complex working environments, the frequent and cumbersome changing of excavator tools leads to low construction efficiency, long working hours, and certain safety hazards. Therefore, a new technology is needed to optimize excavator operation methods and improve their adaptability and ease of operation.

[0003] In the existing technology, traditional excavator gripping devices are mostly specialized. For example, the material gripper can only grip loose materials, and the breaker gripper can only fix the breaker hammer. They cannot be adapted to tools of different sizes and shapes. Changing tools requires replacing the entire gripping device, which increases equipment costs. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a universal quick-change device for excavators with clamping function.

[0005] This utility model is achieved by the following technical solution: a universal quick-change device for excavators with clamping function, including a connecting seat, a clamping component on the surface of the connecting seat, and a rotating component at the bottom of the connecting seat.

[0006] The clamping assembly includes an annular T-slot, with a T-shaped slider slidably connected to the inner wall of the annular T-slot. A connecting block is fixedly connected to the end of the T-shaped slider away from the connecting seat. A fixing rod is fixedly connected to the inner wall of the connecting block. A hydraulic rod connecting block is rotatably connected to the outer wall of the fixing rod. A hydraulic rod is fixedly connected to the end of the hydraulic rod connecting block away from the fixing rod. An output end connecting block is fixedly connected to the output end connecting block. A fixing rod is rotatably connected to the inner wall of the output end connecting block. A gripper is rotatably connected to the outer wall of the fixing rod. A central rod is rotatably connected to the inner wall of the gripper. A limit seat is fixedly connected to the outer wall of the central rod.

[0007] As a further improvement to the above solution, the annular T-slot is formed on the surface of the connecting seat, and the outer wall of the limiting seat is rotatably connected to the surface of the connecting seat.

[0008] As a further improvement to the above solution, two T-shaped sliders are provided, and the two annular T-shaped grooves are symmetrically arranged around the center of the connecting seat. Two hydraulic rods are provided, and the two hydraulic rods are symmetrically arranged around the center of the connecting seat.

[0009] Through the above technical solution, the annular T-shaped groove opened on the surface of the connecting seat in the clamping assembly provides a sliding and limiting basis for the T-shaped slider. The inner walls of the two T-shaped sliders, which are symmetrically arranged with respect to the center of the connecting seat, are slidably connected to the inner wall of the annular T-shaped groove. The position can be finely adjusted along the circumference of the groove, while preventing the slider from detaching from the connecting block fixed at the end of the T-shaped slider away from the connecting seat.

[0010] As a further improvement to the above solution, the rotating assembly includes a rotating clearance groove, which is formed at the bottom of the connecting seat. A connecting rod is rotatably connected to the inner wall of the rotating clearance groove. A rotating gear is fixedly connected to the top of the connecting rod. The outer wall of the rotating gear is rotatably connected to the inner wall of the rotating clearance groove. The top of the connecting rod is fixedly connected to the surface of the limiting seat.

[0011] As a further improvement to the above solution, a liquid storage tank is fixedly connected to the surface of the connecting seat, and a flow guide pipe is provided in the inner wall of the liquid storage tank. A hydraulic pump is provided at the end of the flow guide pipe away from the liquid storage tank.

[0012] As a further improvement to the above solution, the end of the hydraulic pump one away from the guide pipe one is connected to the guide pipe two, the bottom of the hydraulic pump one is fixedly connected to the surface of the connecting seat, and the end of the guide pipe two away from the hydraulic pump one is connected to the inner wall of the rotating clearance groove.

[0013] As a further improvement to the above solution, a flow guide pipe three is connected to the inner wall of the liquid storage tank. A hydraulic pump two is connected to the end of the flow guide pipe three away from the liquid storage tank. The bottom of the hydraulic pump two is fixedly connected to the surface of the connecting seat. A flow guide pipe four is connected to the end of the hydraulic pump two away from the flow guide pipe three. The end of the flow guide pipe four away from the hydraulic pump two is connected to the inner wall of the rotating clearance groove.

[0014] Through the above technical solution, the reservoir fixed on the surface of the connector provides anti-wear hydraulic oil to the entire hydraulic system. It supplies power to the forward and reverse rotation of the rotating gear through two independent oil circuits, ensuring that the rotation direction is controllable. The guide pipe connected to the inner wall of the reservoir delivers the hydraulic oil to the hydraulic pump fixed at the bottom of the connector. The hydraulic pump pressurizes the low-pressure oil into high-pressure oil, and then delivers the high-pressure oil to the inner wall of the rotation clearance groove opened at the bottom of the connector through the guide pipe connected to the first end away from the guide pipe, so as to provide power for the forward rotation of the rotating gear.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a fixed rod (one fixed to the inner wall) to form a rotatable connection with a hydraulic rod connecting block, providing a flexible fulcrum for the hydraulic rod's movement. This ensures that the hydraulic power can adapt to the opening and closing angle of the grippers. When material needs to be gripped, two hydraulic rods symmetrically arranged around the center of the connecting seat start synchronously. The output ends of the hydraulic rods extend or shorten, causing the output end connecting block fixed to their output ends to move synchronously. A fixed rod (two rotatably connected to the inner wall of the output end connecting block converts linear power into rotational power for the grippers. The inner wall of the grippers is rotatably connected to the outer wall of the central rod, which is positioned by a limiting seat fixed to the outer wall. The outer wall of the limiting seat is rotatably connected to the surface of the connecting seat. When a tool needs to be gripped, the output end of the hydraulic rod shortens, pulling the grippers inward around the central rod via the output end connecting block. The two symmetrical grippers move away from each other until they contact the material surface and apply clamping force, completing the gripping. When releasing the material, the output end of the hydraulic rod extends, pushing the grippers inward around the central rod. The grippers rotate inward, and the material falls off naturally. It can form a structure with a fixed fulcrum and a rotating lever, which allows for quick gripping and replacement of different tools.

[0016] This invention utilizes a reservoir fixed to the surface of the connecting seat in a rotating assembly to provide anti-wear hydraulic oil to the entire hydraulic system. Two independent oil circuits power the rotating gear for both forward and reverse rotation, ensuring controllable rotation direction. A guide pipe connected to the inner wall of the reservoir delivers the hydraulic oil to a hydraulic pump fixed to the bottom of the connecting seat. The hydraulic pump pressurizes the low-pressure oil into high-pressure oil, which is then delivered to the inner wall of a rotating clearance groove at the bottom of the connecting seat via a guide pipe connected to the first end away from the first, providing power for the forward rotation of the rotating gear. A guide pipe connected to the inner wall of the reservoir delivers the hydraulic oil to a hydraulic pump fixed to the bottom of the connecting seat. After pressure conversion, the hydraulic pump delivers the high-pressure oil to a guide pipe connected to the fourth end away from the third end. The hydraulic fluid is pumped to the inner wall of the rotating clearance groove, providing power for the rotating gear to reverse. The two hydraulic circuits are independently controlled and can be started separately according to operational needs, avoiding power conflicts. Both hydraulic pumps (first and second) integrate pressure sensors, allowing for real-time adjustment of output pressure based on the rotating load; the higher the load, the higher the pressure, ensuring sufficient power without wasting energy. Hydraulic pump one inputs high-pressure oil into the hydraulic chamber through guide pipe two. This high-pressure oil pushes the right tooth surface of the rotating gear, causing it to rotate clockwise, which in turn causes the connecting rod, which is fixed to the rotating gear at the top, to rotate clockwise synchronously. Hydraulic pump two inputs high-pressure oil into the hydraulic chamber through guide pipe four. This high-pressure oil pushes the left tooth surface of the rotating gear, causing it to rotate counterclockwise, and the connecting rod rotates counterclockwise synchronously with the rotating gear. The outer wall of the connecting rod is fixedly connected to the surface of the limit seat, which is the core positioning component of the clamping assembly. When the connecting rod rotates with the rotating gear, it directly drives the limit seat to rotate synchronously, which in turn drives the entire clamping assembly, including the gripper and hydraulic rod, to rotate via the central rod. At the same time, the hydraulic rod drives the fixed rod one through the hydraulic rod connecting block, the fixed rod one drives the connecting block, and the connecting block drives the T-shaped slider. The T-shaped slider rotates synchronously along the annular T-slot on the surface of the connecting seat, avoiding clamping deviation or structural damage caused by relative displacement between components. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the clamping component structure of this utility model; Figure 3 This is a schematic cross-sectional view of the clamping component of this utility model; Figure 4 This is a schematic diagram of the rotating component structure of this utility model; Figure 5 This is a schematic cross-sectional view of the rotating component of this utility model.

[0018] Explanation of key symbols: 1. Connecting seat; 2. Clamping assembly; 201. Annular T-slot; 202. T-slide block; 203. Connecting block; 204. Fixing rod one; 205. Hydraulic rod connecting block; 206. Hydraulic rod; 207. Output end connecting block; 208. Fixing rod two; 209. Gripper; 210. Center rod; 211. Limiting seat; 3. Rotating assembly; 301. Rotating clearance groove; 302. Connecting rotating rod; 303. Rotating gear; 304. Liquid storage tank; 305. Guide pipe one; 306. Hydraulic pump one; 307. Guide pipe two; 308. Guide pipe three; 309. Hydraulic pump two; 310. Guide pipe four. Detailed Implementation

[0019] 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

[0020] Please combine Figure 1-5 This embodiment provides a universal quick-change device for excavators with clamping capability, including a connecting seat 1, a clamping component 2 on the surface of the connecting seat 1, and a rotating component 3 at the bottom of the connecting seat 1.

[0021] The clamping assembly 2 includes an annular T-slot 201. A T-shaped slider 202 is slidably connected to the inner wall of the annular T-slot 201. A connecting block 203 is fixedly connected to the end of the T-shaped slider 202 away from the connecting seat 1. A fixing rod 204 is fixedly connected to the inner wall of the connecting block 203. A hydraulic rod connecting block 205 is rotatably connected to the outer wall of the fixing rod 204. A hydraulic rod 206 is fixedly connected to the end of the hydraulic rod connecting block 205 away from the fixing rod 204. An output end connecting block 207 is fixedly connected to the output end connecting block 206. A fixing rod 208 is rotatably connected to the inner wall of the output end connecting block 207. A gripper 209 is rotatably connected to the outer wall of the fixing rod 208. A center rod 210 is rotatably connected to the inner wall of the gripper 209. A limit seat 211 is fixedly connected to the outer wall of the center rod 210.

[0022] An annular T-slot 201 is formed on the surface of the connecting seat 1, and the outer wall of the limiting seat 211 is rotatably connected to the surface of the connecting seat 1.

[0023] Two T-shaped sliders 202 are provided, with two annular T-slots 201 symmetrically arranged around the center of the connecting seat 1. Two hydraulic rods 206 are also provided, symmetrically arranged around the center of the connecting seat 1. They are rotatably connected to the hydraulic rod connecting block 205 via a fixing rod 204 fixed to the inner wall, providing a flexible fulcrum for the movement of the hydraulic rods 206 and ensuring that the hydraulic power can adapt to the opening and closing angle of the subsequent gripper 209. When material needs to be gripped, the two hydraulic rods 206 symmetrically arranged around the center of the connecting seat 1 start synchronously. The output ends of the hydraulic rods 206 extend or shorten, driving the output end connecting block 207 fixed to their output ends to move synchronously. The fixing rod 208 rotatably connected to the inner wall of the output end connecting block 207 converts the linear power into the rotational power of the gripper 209.

[0024] The rotating assembly 3 includes a rotating clearance groove 301, which is formed at the bottom of the connecting seat 1. A connecting rod 302 is rotatably connected to the inner wall of the rotating clearance groove 301. A rotating gear 303 is fixedly connected to the top of the connecting rod 302. The outer wall of the rotating gear 303 is rotatably connected to the inner wall of the rotating clearance groove 301. The bottom of the connecting rod 302 is fixedly connected to the surface of the limiting seat 211.

[0025] A liquid storage tank 304 is fixedly connected to the surface of the connecting seat 1. A guide pipe 305 is provided in the inner wall of the liquid storage tank 304. A hydraulic pump 306 is provided at the end of the guide pipe 305 away from the liquid storage tank 304.

[0026] The end of the hydraulic pump 306 away from the guide pipe 305 is connected to the guide pipe 307. The bottom of the hydraulic pump 306 is fixedly connected to the surface of the connecting seat 1. The end of the guide pipe 307 away from the hydraulic pump 306 is connected to the inner wall of the rotating clearance groove 301.

[0027] A guide pipe 308 is connected to the inner wall of the liquid storage tank 304. A hydraulic pump 2 309 is connected to the end of the guide pipe 308 away from the liquid storage tank 304. The bottom of the hydraulic pump 2 309 is fixedly connected to the surface of the connecting seat 1. A guide pipe 4 310 is connected to the end of the hydraulic pump 2 309 away from the guide pipe 308. The end of the guide pipe 4 310 away from the hydraulic pump 2 309 is connected to the inner wall of the rotating clearance groove 301. The hydraulic pump 1 306 inputs high-pressure oil into the hydraulic oil chamber through the guide pipe 2 307. The high-pressure oil pushes the right tooth surface of the rotating gear 303, causing the rotating gear 303 to rotate clockwise, thereby causing the connecting rod 302, which is fixed to the top of the rotating gear 303, to rotate clockwise synchronously. The hydraulic pump 2 309 inputs high-pressure oil into the hydraulic oil chamber through the guide pipe 4 310. The high-pressure oil pushes the left tooth surface of the rotating gear 303, causing the rotating gear 303 to rotate counterclockwise.

[0028] The implementation principle of the excavator universal quick-change device with clamping function in this application embodiment is as follows: the fixed rod 204 fixed on the inner wall forms a rotatable connection with the hydraulic rod connecting block 205, providing a flexible fulcrum for the movement of the hydraulic rod 206, ensuring that the hydraulic power can be adapted to the opening and closing angle of the subsequent gripper 209. When it is necessary to grab materials, the two hydraulic rods 206 symmetrically arranged with the center of the connecting seat 1 start synchronously. The output end of the hydraulic rod 206 extends or shortens, driving the output end connecting block 207 fixed at its output end to move synchronously. The fixed rod 208, rotatably connected to the inner wall of the output end connecting block 207, converts linear power into rotational power for the gripper 209. The inner wall of the gripper 209 is rotatably connected to the outer wall of the central rod 210, which is positioned by a limiting seat 211 fixed to its outer wall. The outer wall of the limiting seat 211 is rotatably connected to the surface of the connecting seat 1. When a tool needs to be gripped, the output end of the hydraulic rod 206 shortens, pulling the gripper 209 inward around the central rod 210 via the output end connecting block 207. The two symmetrical grippers 209 move away from each other until they adhere to the material surface and apply clamping force, completing the gripping. When releasing the material, the output end of the hydraulic rod 206 extends, pushing the gripper 209 inward around the central rod 210. The gripper rotates inward, and the material falls off naturally. This structure, consisting of a fixed fulcrum and a rotating lever, allows for quick gripping and replacement of different tools.Then, the reservoir 304, fixed to the surface of the connecting seat 1 in the rotating assembly 3, provides anti-wear hydraulic oil to the entire hydraulic system. Two independent oil circuits power the forward and reverse rotation of the rotating gear 303, ensuring controllable rotation direction. The first guide pipe 305, connected to the inner wall of the reservoir 304, delivers the hydraulic oil to the first hydraulic pump 306, fixed to the bottom surface of the connecting seat 1. The first hydraulic pump 306 pressurizes the low-pressure oil into high-pressure oil, which is then delivered to the inner wall of the rotation clearance groove 301 at the bottom of the connecting seat 1 via the second guide pipe 307, connected to the end away from the first guide pipe 305, providing power for the forward rotation of the rotating gear 303. The third guide pipe 308, connected to the inner wall of the reservoir 304, delivers the hydraulic oil to the second hydraulic pump 309, fixed to the bottom surface of the connecting seat 1. After pressure conversion, the second hydraulic pump 309 delivers the high-pressure oil to the fourth guide pipe 310, connected to the end away from the third guide pipe 308. Oil is delivered to the inner wall of the rotating clearance groove 301 to provide power for the reverse rotation of the rotating gear 303. The two oil circuits are independently controlled and can be started separately according to the operation requirements to avoid power conflict. At the same time, hydraulic pump 1 306 and hydraulic pump 2 309 are integrated with pressure sensors, which can adjust the output pressure in real time according to the rotating load. The greater the load, the higher the pressure, ensuring sufficient power and no energy waste. Hydraulic pump 1 306 inputs high-pressure oil into the hydraulic oil chamber through guide pipe 2 307. The high-pressure oil pushes the right tooth surface of the rotating gear 303, causing the rotating gear 303 to rotate clockwise, and thus the connecting rod 302, which is fixed to the top of the rotating gear 303, rotates clockwise synchronously. Hydraulic pump 2 309 inputs high-pressure oil into the hydraulic oil chamber through guide pipe 4 310. The high-pressure oil pushes the left tooth surface of the rotating gear 303, causing the rotating gear 303 to rotate counterclockwise, and the connecting rod 302 rotates counterclockwise synchronously with the rotating gear 303. The outer wall of the connecting rod 302 is fixedly connected to the surface of the limiting seat 211, which is the core positioning component of the clamping assembly 2. When the connecting rod 302 rotates with the rotating gear 303, it directly drives the limiting seat 211 to rotate synchronously, which in turn drives the entire clamping assembly 2, including the gripper 209 and the hydraulic rod 206, to rotate via the central rod 210. At the same time, the hydraulic rod 206 drives the fixing rod 204 via the hydraulic rod connecting block 205, which in turn drives the connecting block 203. The connecting block 203 drives the T-shaped slider 202, which rotates synchronously along the annular T-groove 201 on the surface of the connecting seat 1, thus avoiding clamping deviation or structural damage caused by relative displacement between components.

[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 universal quick-change device for excavators with clamping capability, characterized in that, Includes a connecting seat (1), the surface of the connecting seat (1) is provided with a clamping component (2), and the bottom of the connecting seat (1) is provided with a rotating component (3); The clamping assembly (2) includes an annular T-slot (201), and a T-shaped slider (202) is slidably connected to the inner wall of the annular T-slot (201). A connecting block (203) is fixedly connected to one end of the T-shaped slider (202) away from the connecting seat (1). A fixing rod (204) is fixedly connected to the inner wall of the connecting block (203). A hydraulic rod connecting block (205) is rotatably connected to the outer wall of the fixing rod (204). The hydraulic rod connecting block (205) is located away from the fixed seat (1). A hydraulic rod (206) is fixedly connected to one end of rod one (204). An output end connecting block (207) is fixedly connected to the output end of the hydraulic rod (206). A fixed rod two (208) is rotatably connected to the inner wall of the output end connecting block (207). A gripper (209) is rotatably connected to the outer wall of the fixed rod two (208). A center rod (210) is rotatably connected to the inner wall of the gripper (209). A limit seat (211) is fixedly connected to the outer wall of the center rod (210).

2. The excavator universal quick-change device with clamping function as described in claim 1, characterized in that: The annular T-slot (201) is formed on the surface of the connecting seat (1), and the outer wall of the limiting seat (211) is rotatably connected to the surface of the connecting seat (1).

3. The excavator universal quick-change device with clamping function as described in claim 1, characterized in that: Two T-shaped sliders (202) are provided, and two annular T-shaped grooves (201) are symmetrically arranged around the center of the connecting seat (1). Two hydraulic rods (206) are provided, and two hydraulic rods (206) are symmetrically arranged around the center of the connecting seat (1).

4. The excavator universal quick-change device with clamping function as described in claim 1, characterized in that: The rotating assembly (3) includes a rotating clearance groove (301), which is located at the bottom of the connecting seat (1). A connecting rod (302) is rotatably connected to the inner wall of the rotating clearance groove (301). A rotating gear (303) is fixedly connected to the top of the connecting rod (302). The outer wall of the rotating gear (303) is rotatably connected to the inner wall of the rotating clearance groove (301). The bottom of the connecting rod (302) is fixedly connected to the surface of the limiting seat (211).

5. A universal quick-change device for excavators with clamping function as described in claim 4, characterized in that: A liquid storage tank (304) is fixedly connected to the surface of the connecting seat (1). A guide pipe (305) is connected to the inner wall of the liquid storage tank (304). A hydraulic pump (306) is connected to the end of the guide pipe (305) away from the liquid storage tank (304).

6. A universal quick-change device for excavators with clamping function as described in claim 5, characterized in that: The hydraulic pump one (306) is connected to a guide pipe two (307) at one end away from the guide pipe one (305). The bottom of the hydraulic pump one (306) is fixedly connected to the surface of the connecting seat (1). The guide pipe two (307) is connected to the inner wall of the rotating clearance groove (301) at one end away from the hydraulic pump one (306).

7. A universal quick-change device for excavators with clamping function as described in claim 6, characterized in that: The inner wall of the liquid storage tank (304) is connected to a flow guide pipe three (308). The end of the flow guide pipe three (308) away from the liquid storage tank (304) is connected to a hydraulic pump two (309). The bottom of the hydraulic pump two (309) is fixedly connected to the surface of the connecting seat (1). The end of the hydraulic pump two (309) away from the flow guide pipe three (308) is connected to a flow guide pipe four (310). The end of the flow guide pipe four (310) away from the hydraulic pump two (309) is connected to the inner wall of the rotating clearance groove (301).

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