Quick change device of electric loader

Abstract

The utility model relates to the technical field of electric loaders, and discloses a quick change device of an electric loader. The quick change device of the electric loader comprises a connecting plate, a connecting shaft is fixedly installed at the lower end of the connecting plate, a fixed block is fixedly installed above the connecting plate, a movable shaft is installed in the fixed block in a penetrating and inserting mode, an adapter block is fixedly installed on the outer side of the movable shaft, and an adjusting piston is fixedly installed at the front end of the adapter block. A connecting block is installed on the front side of the connecting shaft in a penetrating mode, the rear end of the adjusting piston above the connecting block is movably connected with the connecting plate, the rear end of the adjusting piston below the connecting block is movably connected with the fixing plate, and when the adjusting piston extends, the connecting plate and the fixing plate can be driven to rotate with the axis of the connecting shaft as the reference. And the distance between the tail ends of the connecting plate and the fixing plate is controlled, so that the quick-changing device can adapt to buckets with different heights, and the application range of the quick-changing device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of electric loaders, in particular to a quick-change device for electric loaders. Background Art

[0002] Loaders are common construction equipment. By replacing the type of tools (such as buckets) at the front end of the loader's working device, multiple operating functions such as material shoveling, wood grabbing, and grass clamping can be achieved, giving full play to the differentiated performance of the loader in different operating conditions. Among them, electric loaders, as a new energy loader, are driven and operated by the vehicle's power battery, and the power is output by the motor. They have the characteristics of high energy efficiency, clean and environmental protection, fuel saving, simple structure, low maintenance requirements, little impact on production operations, and greatly save maintenance time, materials and labor costs.

[0003] The existing Chinese utility model patent with reference announcement number CN218757658U discloses a quick-change device for an electric loader. The quick-change bracket includes two opposite side panels, the bottom of the side panels are connected by a fixed plate, a support sleeve is arranged on the top of the side panel, a connecting hole is arranged below the support sleeve, a rotating member passes through the opposite supporting sleeve to connect the two side panels, the rotating member rotates in the supporting sleeve, the quick-change member is arranged on the fixed plate, the quick-change member is connected to the fixing member, the fixing member passes through the connecting hole to connect the boom of the electric loader, the rotating member is connected to the pull rod of the electric loader, the tool is provided with a connecting plate, the connecting plate is provided with an upper hanging part and a lower supporting hole, the supporting sleeve cooperates with the upper hanging part, the boom and the pull rod are adjusted to align the fixing member with the lower supporting hole of the connecting plate, the quick-change member is actuated to insert the fixing member into the lower supporting hole, the electric loader tool quick-change operation is realized, the structural layout is simplified, installation and inspection are convenient, the requirements of the electric loader for simplification and weight reduction to meet energy saving can be met, and the purpose of energy saving and range extension of the electric loader can be met.

[0004] The upper end of the existing loader quick-change device is connected to the bucket through a columnar structure, and the lower end is pushed by a two-way piston to push the fixed column through the open hole structure of the bucket, so that the bucket is fixed to the end of the loader hydraulic arm. In this way, the weight of the bucket will be transferred to the fixed column. Due to the fixed connection between the fixed column and the hydraulic piston, the hydraulic piston may bend, affecting the normal use of the quick-change device. At the same time, the overall structure of the existing quick-change device is fixed, and only the bucket of the corresponding model can be installed, with a small scope of application. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a quick-change device for an electric loader, which has the advantages of avoiding bending of the hydraulic piston and being able to expand the scope of application, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric loader quick-change device, comprising: a connecting plate, a connecting shaft is fixedly installed on the lower end of the connecting plate, a fixed block is fixedly installed on the upper part of the connecting plate, a movable shaft is inserted and installed inside the fixed block, a transfer block is fixedly installed on the outer side of the movable shaft, an adjusting piston is fixedly installed on the front end of the transfer block, a connecting block is inserted and installed on the front side of the connecting shaft, a base is fixedly installed on the rear side of the connecting block, a connecting frame is fixedly installed on the front end of the connecting block, a fixing plate is inserted and installed below the connecting shaft, a transmission piston is fixedly installed inside the fixing plate, a transmission frame is fixedly installed on the end of the transmission piston, a connecting rod is movably installed on the outer side of the transmission frame, and a limiting column is movably installed on the end of the connecting rod; the connecting block and the connecting frame can be conveniently connected to the hydraulic arm of the loader.

[0009] As a preferred technical solution of the present utility model, hook structures are provided at the center of the upper end of the connecting plate and on the left and right sides of the upper end. The connecting plate is rotatably connected with the connecting block through a connecting shaft, and the connecting plate is rotatably connected with the adapter block through a fixed block, a movable shaft; the connecting shaft can facilitate the rotatable connection between the connecting plate, the connecting block and the fixed plate.

[0010] As the preferred technical solution of the utility model, the adapter block is fixedly installed at the front and rear ends of the adjusting piston, the rear end of the adjusting piston is rotationally connected through the adapter block, the movable shaft and the fixed block, and the front end of the adjusting piston is rotationally connected through the adapter block, the movable shaft and the base; the fixed block can limit the position of the rear end of the adjusting piston through the movable shaft and the adapter block.

[0011] As the preferred technical solution of the utility model, the base is symmetrically installed on the upper and lower sides of the vertical upright surface on the rear side of the connecting block with the center of the connecting block as the reference, and the base under the connecting block is movably connected through the movable shaft, the adapter block, the adjusting piston, the fixed block and the fixed plate; the base can limit the position of the front end of the adjusting piston through the movable shaft and the adapter block.

[0012] As a preferred technical solution of the utility model, a fixing block is also fixedly installed on the bottom surface of the fixing plate, and the fixing plate is rotatably connected to the connecting block via a connecting shaft; the fixing plate can limit the position of the transmission piston.

[0013] As the preferred technical solution of the utility model, the transmission frame has an isomorphic transmission piston and a fixed plate that form a movable connection, the connecting rod is installed on the left and right sides of the transmission frame in a mirror-symmetrical manner with the center of the transmission frame as a reference, and a rotational connection is formed between the transmission frame and the connecting rod; the transmission frame can drive the connecting rod to move.

[0014] As the preferred technical solution of the utility model, the limit column passes through the fixed plate horizontally on the left and right sides, and a sliding connection is formed between the limit column and the fixed plate. The limit column is installed at the ends of the connecting rods on the left and right sides of the transmission frame in a mirror-symmetrical manner with the center of the transmission frame as a reference, and a rotational connection is formed between the limit column and the connecting rod; the limit column can facilitate fixing the lower end position of the bucket.

[0015] Compared with the prior art, the utility model provides a quick-change device for an electric loader, which has the following beneficial effects:

[0016] 1. The utility model sets an adjusting piston, and the adapter block is fixedly installed on the front and rear ends of the adjusting piston. The rear end of the adjusting piston is rotatably connected with the fixed block and the base through the adapter block, the movable shaft, and the base. The front end of the adjusting piston is movably connected with the connecting block. Since the base is symmetrically installed on the upper and lower sides of the vertical vertical surface on the rear side of the connecting block with the center of the connecting block as a reference, the rear end of the adjusting piston above the connecting block is movably connected with the connecting plate, and the rear end of the adjusting piston below the connecting block is movably connected with the fixed plate. When the adjusting piston is extended, it can drive the connecting plate and the fixed plate to rotate with the axis of the connecting shaft as a reference to control the distance between the ends of the connecting plate and the fixed plate, so that the quick-change device can adapt to buckets of different heights to improve the application range of the quick-change device.

[0017] 2. The utility model sets a transmission piston so that the transmission piston can drive the transmission frame to move. During the extension and retraction of the transmission piston, the transmission frame will drive a section of the connecting rod to move. Since the axial movement of the limit column is limited by the fixed plate, the section of the connecting rod connected to the limit column can only move in the left and right horizontal axial directions. When the section of the connecting rod connected to the transmission frame moves, the connecting rod will rotate and the angle between the connecting rods will decrease, thereby driving the limit column to move in the left and right horizontal axial directions. This method can fix the position below the bucket while not directly connecting the limit column and the transmission frame. The force exerted on the limit column will be transmitted to the fixed plate to prevent the movable end of the transmission piston from bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the connection plate and the connection block of the utility model;

[0020] Figure 3 This is a schematic diagram of the side structure of the connection block of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing plate of the utility model;

[0022] Among them: 1. connecting plate; 11. connecting shaft; 12. fixed block; 13. movable shaft; 14. adapter block; 15. adjusting piston; 16. connecting block; 17. base; 18. connecting frame; 2. fixed plate; 21. transmission piston; 22. transmission frame; 23. connecting rod; 24. limiting column. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4 In this embodiment, a quick-change device for an electric loader includes: a connecting plate 1, a connecting shaft 11 is fixedly installed at the lower end of the connecting plate 1, a fixed block 12 is fixedly installed on the upper part of the connecting plate 1, a movable shaft 13 is inserted and installed inside the fixed block 12, an adapter block 14 is fixedly installed on the outer side of the movable shaft 13, an adjusting piston 15 is fixedly installed at the front end of the adapter block 14, a connecting block 16 is inserted and installed on the front side of the connecting shaft 11, a base 17 is fixedly installed on the rear side of the connecting block 16, and a connecting frame 18 is fixedly installed at the front end of the connecting block 16.

[0027] Hook structures are provided at the center and left and right sides of the upper end of the connecting plate 1. The connecting plate 1 is rotatably connected to the connecting block 16 through the connecting shaft 11. The connecting plate 1 is rotatably connected to the connecting block 16 through the fixing block 12 and the movable shaft 13.

[0028] The adapter block 14 is fixedly installed at the front and rear ends of the adjusting piston 15. The rear end of the adjusting piston 15 is rotationally connected with the fixed block 12 through the adapter block 14, the movable shaft 13, and the front end of the adjusting piston 15 is rotationally connected with the base 17 through the adapter block 14, the movable shaft 13.

[0029] The base 17 is installed symmetrically on the upper and lower sides of the vertical vertical surface behind the connecting block 16 with the center of the connecting block 16 as the reference. The base 17 below the connecting block 16 is movably connected with the fixed plate 2 through the movable shaft 13, the adapter block 14, the adjusting piston 15, the fixed block 12.

[0030] Specifically, the connecting plate 1 can facilitate fixing the upper end of the bucket, the connecting shaft 11 can facilitate the rotational connection between the connecting plate 1, the connecting block 16, and the fixed plate 2, the fixed block 12 can limit the position of the rear end of the adjusting piston 15 through the movable shaft 13 and the adapter block 14, the adjusting piston 15 can drive the connecting plate 1 to rotate with the axis of the connecting shaft 11 as the reference, the base 17 can limit the position of the front end of the adjusting piston 15 through the movable shaft 13 and the adapter block 14, and the connecting block 16 and the connecting frame 18 can facilitate connection with the loader hydraulic arm.

[0031] A fixed plate 2 is inserted below the connecting shaft 11, a transmission piston 21 is fixedly installed inside the fixed plate 2, a transmission frame 22 is fixedly installed at the end of the transmission piston 21, a connecting rod 23 is movably installed outside the transmission frame 22, and a limiting column 24 is movably installed at the end of the connecting rod 23.

[0032] A fixing block 12 is also fixedly mounted on the bottom surface of the fixing plate 2 , and the fixing plate 2 is rotatably connected to the connecting block 16 via the connecting shaft 11 .

[0033] The transmission frame 22 is movably connected to the transmission piston 21 and the fixed plate 2. The connecting rod 23 is installed on the left and right sides of the transmission frame 22 in a mirror-symmetrical manner with the center of the transmission frame 22 as a reference. The transmission frame 22 and the connecting rod 23 are rotatably connected.

[0034] The limit column 24 passes through the fixed plate 2 horizontally from left to right, and a sliding connection is formed between the limit column 24 and the fixed plate 2. The limit column 24 is installed at the ends of the connecting rods 23 on the left and right sides of the transmission frame 22 in a mirror-symmetrical manner with the center of the transmission frame 22 as a reference, and a rotation connection is formed between the limit column 24 and the connecting rod 23.

[0035] Specifically, the fixed plate 2 can limit the position of the transmission piston 21, the transmission piston 21 can drive the transmission frame 22 to move, the transmission frame 22 can drive the connecting rod 23 to move, the connecting rod 23 can drive the limiting column 24 to move in the left and right horizontal axial directions, and the limiting column 24 can facilitate fixing the lower end position of the bucket.

[0036] When in use, the adapter block 14 is fixedly installed at the front and rear ends of the adjusting piston 15, and the rear end of the adjusting piston 15 is rotatably connected with the fixed block 12 and the base 17 through the adapter block 14, the movable shaft 13, and the base 17. The front end of the adjusting piston 15 is movably connected with the connecting block 16. Since the base 17 is symmetrically installed on the upper and lower sides of the vertical vertical surface on the rear side of the connecting block 16 with the center of the connecting block 16 as a reference, the rear end of the adjusting piston 15 above the connecting block 16 is movably connected with the connecting plate 1, and the rear end of the adjusting piston 15 below the connecting block 16 is movably connected with the fixed plate 2. When the adjusting piston 15 is extended, it can drive the connecting plate 1 and the fixed plate 2 to rotate with the axis of the connecting shaft 11 as a reference to control the distance between the ends of the connecting plate 1 and the fixed plate 2, so that the quick-changing device can adapt to different heights. Bucket, in order to improve the application scope of the quick-change device, since the transmission piston 21 can drive the transmission frame 22 to move, in the process of the transmission piston 21 extending and retracting, the transmission frame 22 will drive a section of the connecting rod 23 to move. Since the movement axis of the limit column 24 is limited by the fixed plate 2, the end of the connecting rod 23 connected to the limit column 24 can only move in the left and right horizontal axial directions. When the end of the connecting rod 23 connected to the transmission frame 22 moves, the connecting rod 23 will rotate, and the angle between the connecting rods 23 will be reduced, thereby driving the limit column 24 to move in the left and right horizontal axial directions. This method can fix the position below the bucket while preventing the limit column 24 from being directly connected to the transmission frame 22. The force exerted on the limit column 24 will be transmitted to the fixed plate 2 to avoid bending of the movable end of the transmission piston 21.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-change device for an electric loader, characterized in that: include: A connecting plate (1), a connecting shaft (11) is fixedly installed at the lower end of the connecting plate (1), a fixing block (12) is fixedly installed above the connecting plate (1), a movable shaft (13) is inserted and installed inside the fixing block (12), an adapter block (14) is fixedly installed outside the movable shaft (13), an adjusting piston (15) is fixedly installed at the front end of the adapter block (14), a connecting block (16) is inserted and installed on the front side of the connecting shaft (11), and the connecting block (16) ) is fixedly mounted on the rear side of the connecting block (16), a connecting frame (18) is fixedly mounted on the front end of the connecting block (16), a fixing plate (2) is inserted and mounted below the connecting shaft (11), a transmission piston (21) is fixedly mounted inside the fixing plate (2), a transmission frame (22) is fixedly mounted at the end of the transmission piston (21), a connecting rod (23) is movably mounted on the outer side of the transmission frame (22), and a limiting column (24) is movably mounted at the end of the connecting rod (23).

2. The electric loader quick-change device according to claim 1, characterized in that: The center of the upper end of the connecting plate (1) and the left and right sides of the upper end are provided with hook structures. The connecting plate (1) is rotatably connected to the connecting block (16) via the connecting shaft (11). The connecting plate (1) is rotatably connected to the connecting block (14) via the fixing block (12), the movable shaft (13) and the adapter block (14).

3. The electric loader quick-change device according to claim 1, characterized in that: The adapter block (14) is fixedly mounted on the front and rear ends of the regulating piston (15); the rear end of the regulating piston (15) is rotatably connected to the fixed block (12) via the adapter block (14) and the movable shaft (13); and the front end of the regulating piston (15) is rotatably connected to the base (17) via the adapter block (14) and the movable shaft (13).

4. The electric loader quick-change device according to claim 1, characterized in that: The base (17) is symmetrically installed on the upper and lower sides of the vertical upright surface on the rear side of the connecting block (16) with the center of the connecting block (16) as the reference, and the base (17) below the connecting block (16) is movably connected to the fixed plate (2) through the movable shaft (13), the adapter block (14), the regulating piston (15), the fixed block (12).

5. The electric loader quick-change device according to claim 1, characterized in that: A fixing block (12) is also fixedly mounted on the bottom surface of the fixing plate (2), and the fixing plate (2) is rotatably connected to the connecting block (16) via a connecting shaft (11).

6. The electric loader quick-change device according to claim 1, characterized in that: The transmission frame (22) is movably connected to the transmission piston (21) and the fixed plate (2); the connecting rod (23) is installed on the left and right sides of the transmission frame (22) in a mirror-symmetrical manner with the center of the transmission frame (22) as a reference; and the transmission frame (22) and the connecting rod (23) are rotatably connected.

7. The electric loader quick-change device according to claim 1, characterized in that: The limit column (24) passes through the fixed plate (2) horizontally on the left and right sides, and a sliding connection is formed between the limit column (24) and the fixed plate (2). The limit column (24) is installed at the ends of the connecting rods (23) on the left and right sides of the transmission frame (22) in a mirror-symmetrical manner with the center of the transmission frame (22) as a reference, and a rotation connection is formed between the limit column (24) and the connecting rod (23).

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