Loader accessory connecting device

Abstract

The utility model provides a loader accessory connecting device which comprises a pair of lug plate assemblies, each lug plate assembly comprises a left lug plate and a right lug plate, the left lug plate and the right lug plate are symmetrically arranged, a semicircular hole is formed in the upper portion of each lug plate assembly, a sinking groove is formed in the lower portion of each lug plate assembly, and the two lug plate assemblies are fixedly connected through a rib plate and a round pipe. According to the connecting device for the loader accessory, quick connection of the loader quick-change part and the accessory can be achieved, the manufacturing process of the connecting device is simple, only machining procedures need to be conducted on the part, then the part can be welded into an assembly in advance, and therefore the part can be quickly welded to the corresponding accessory in the follow-up process. The connecting device is simple and stable in structure and small in welding deformation, precision can be guaranteed in the process of welding with the accessory, and accessory assembly cannot be affected.

Description

Technical Field

[0001] The utility model belongs to the field of engineering machinery, and specifically relates to a novel loader attachment connection device. Background Art

[0002] Loaders are earthmoving machines widely used in construction projects such as roads, railways, buildings, hydropower, and mines. They are mainly used for digging and shoveling bulk materials such as soil, sand, and coal. They can also achieve other functions by replacing different attachments. For example, the original attachments can be replaced with wood grabs to grab wood; the original attachments can be replaced with booms to lift materials, etc. However, it takes a long time to replace attachments, so quickly replacing attachments will greatly improve the efficiency of production operations.

[0003] Therefore, various quick-change connection devices have emerged; and a connection device with simple manufacturing process and higher replacement efficiency is the key to the current production operation stage.

[0004] The production process of attachments that match the loader quick change is relatively complicated. Such quick change attachments often need to be machined on the parts and then welded as components or assemblies. With the input of welding heat, uncontrollable welding deformation will occur, so the assembly accuracy is also difficult to guarantee. In addition, due to the complex process of quick change attachments, the production cycle is long and the production cost is high. Summary of the invention

[0005] The utility model aims to provide a loader attachment connection device to solve the problems of low production efficiency and high production cost of quick-change attachments in the prior art.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A loader attachment connection device comprises a pair of ear plate assemblies, each ear plate assembly comprises a left ear plate and a right ear plate, the left ear plate and the right ear plate are symmetrically arranged, a semicircular hole is arranged on the upper part of the ear plate assembly, a sink groove is arranged on the lower part of the ear plate assembly, and the two ear plate assemblies are fixedly connected by a rib plate and a round tube.

[0008] Furthermore, the left ear plate and the right ear plate are connected by welding.

[0009] Furthermore, the lower parts of the left ear plate and the right ear plate are respectively provided with half a sink, which are combined to form a complete sink.

[0010] Furthermore, the sink is a square hole.

[0011] Furthermore, the upper parts of the left ear plate and the right ear plate are both provided with the same semicircular holes.

[0012] Furthermore, the semicircular hole opens downward.

[0013] Furthermore, the circular tube is connected to the lower parts of the two ear plate assemblies.

[0014] Furthermore, the connecting device is welded to loader accessories, such as a bucket, a boom, a wood grabber, etc.

[0015] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0016] (1) The loader attachment connection device of the utility model has various components connected by welding, with small welding deformation and a solid overall structure. During the production welding process, the deformation caused by welding is very small, and the product accuracy can be guaranteed without complicated procedures and processes;

[0017] (2) The loader attachment connection device of the utility model has a simple manufacturing process, and only machining is performed on the parts, without the need for complex manufacturing processes, and the assembly accuracy with the loader quick change can be ensured;

[0018] (3) The loader attachment connection device of the utility model has a simple structure, high reliability and good safety. The entire connection assembly consists of only 6 parts and has no hidden structure. When failure or other problems occur, they can be discovered and solved in time to avoid safety accidents.

[0019] (4) The inventory of connecting devices can be prepared in advance, and the accessories can be produced more efficiently during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the loader attachment connection device of the utility model;

[0021] Figure 2 is a schematic diagram of the structure of the ear plate assembly;

[0022] Figure 3 It is a structural diagram of the loader quick change;

[0023] Figure 4 It is a schematic diagram of the assembly of the loader quick change and connection device;

[0024] In the figure, 1-left ear plate, 2-right ear plate, 3-rib plate, 4-circular tube, 5-semicircular hole, 6-sink, 7-loader quick-change upper circular tube, 8-cylinder, 9-wedge block. DETAILED DESCRIPTION

[0025] The present invention will be further explained below in conjunction with the accompanying drawings.

[0026] like Figure 1 and 2As shown, a loader attachment connection device of the utility model includes a pair of ear plate assemblies, each ear plate assembly includes a left ear plate 1 and a right ear plate 2, the left ear plate 1 and the right ear plate 2 are symmetrically arranged and welded; the left ear plate 1 and the right ear plate 2 are both provided with the same semicircular holes on the upper part, and a semicircular hole 5 is formed after being combined, and the semicircular hole 5 opens downward; the left ear plate 1 and the right ear plate 2 are respectively provided with half a sinking groove on the lower part, and a complete sinking groove 6 is formed after being combined, and the sinking groove 6 is a square hole; the two ear plate assemblies are fixedly connected by a rib plate 3 and a round tube 4, the two ear plate assemblies are respectively welded to the rib plate 3, and the round tube 4 is respectively welded to the lower part of the two ear plate assemblies. The rib plate 3 and the round tube 4 are used to increase the overall strength of the connection device.

[0027] like Figure 3 and 4 As shown, taking the loader quick change as an example, the method of using the connecting device of the utility model is explained. The semicircular hole on the connecting device is inserted into the square tube 7 on the loader quick change, and then the wedge block 9 is driven by the extension of the cylinder 8 to be inserted into the sink groove 6 on the connecting device, thereby completing the rapid assembly and connection of the loader quick change and the connecting device.

[0028] By welding the connecting device to different loader attachments, such as buckets, booms, and wood grabbers, the loader attachments can be quickly replaced, thereby broadening the application range and application sites of the same loader.

[0029] The utility model provides a loader attachment connection device, which can realize the quick connection between the loader quick change and the attachment, and the manufacturing process of the connection device is relatively simple, and only requires machining on the parts, and then can be welded into components in advance, so that they can be quickly welded on the corresponding attachment later. The connection device has a simple and stable structure, small welding deformation, can ensure accuracy during the welding process with the attachment, and will not affect the assembly of the attachment.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A loader attachment connection device, Features: It comprises a pair of ear plate assemblies, each ear plate assembly comprises a left ear plate (1) and a right ear plate (2), the left ear plate (1) and the right ear plate (2) are symmetrically arranged, a semicircular hole (5) is arranged on the upper part of the ear plate assembly, a sink groove (6) is arranged on the lower part of the ear plate assembly, and the two ear plate assemblies are fixedly connected via a rib plate (3) and a round tube (4).

2. The loader attachment connection device according to claim 1, Features: The left ear plate (1) and the right ear plate (2) are connected by welding.

3. The loader attachment connection device according to claim 1, Features: The lower parts of the left ear plate (1) and the right ear plate (2) are respectively provided with half a sinking groove, which are combined to form a complete sinking groove (6).

4. The loader attachment connection device according to claim 1 or 3, Features: The sink (6) is a square hole.

5. The loader attachment connection device according to claim 1, Features: The upper parts of the left ear plate (1) and the right ear plate (2) are both provided with the same semicircular holes.

6. The loader attachment connection device according to claim 1 or 5, Features: The semicircular hole (5) opens downward.

7. The loader attachment connection device according to claim 1, Features: The circular tube (4) is connected to the lower parts of the two ear plate assemblies.

8. The loader attachment connection device according to claim 1, Features: The connecting device is welded to the loader attachment.

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