A side-shift frame drive device, a side-shift device and a backhoe loader

Abstract

The utility model discloses a side shift frame driving device, side shift device and excavating loader, the side shift frame driving device, including the mobile part of movable setting on the frame, both ends of mobile part all rotatively connect with the pulley, and the traction rope is wound on the pulley, and the traction rope of winding over the pulley both ends are connected with the frame and side shift frame respectively, and with pulley constitute dynamic pulley mechanism, the utility model discloses the characteristic of saving labor and displacement with dynamic pulley mechanism, with mobile part as power source, through the traction rope traction side shift frame movement, when mobile part moves one unit distance, side shift frame can move two unit distance, thereby realizes efficient, fast side shift frame side shift.

Description

Technical Field

[0001] This utility model relates to a side-shifting frame drive device, a side-shifting device, and an excavator loader, belonging to the field of excavator loaders. Background Technology

[0002] Excavators with side-shift frames can improve their adaptability to different sites, making it more convenient to operate in special environments. However, the power unit of existing side-shift frames generally uses hydraulic cylinders, which push the side-shift frame to move left and right. The distance that the cylinder extends or retracts is the distance the side-shift frame moves. This side-shifting method is relatively inefficient. Utility Model Content

[0003] This utility model provides a lateral shift drive device, a lateral shift device, and an excavator loader, which solves the problems disclosed in the background art.

[0004] According to one aspect of this application, a side-shift frame drive device is provided, including a movable part movably mounted on a vehicle frame. Both ends of the movable part are rotatably connected to pulleys, and a traction rope is wound around the pulleys. The two ends of the traction rope passing over the pulleys are respectively connected to the vehicle frame and the side-shift frame, and together with the pulleys, they form a movable pulley mechanism.

[0005] Furthermore, both ends of the traction rope that passes over the pulley at one end of the moving part are directed toward the other end of the moving part.

[0006] Furthermore, the moving part is the cylinder body of a bidirectional telescopic cylinder, and the telescopic end of the telescopic cylinder is connected to the vehicle frame.

[0007] Furthermore, the telescopic cylinder is parallel to the crossbeam of the frame.

[0008] Furthermore, the two ends of the traction rope are connected to the middle of the frame crossbeam and the middle of the side shift frame, respectively.

[0009] Furthermore, the traction rope is a steel wire rope.

[0010] According to another aspect of this application, a lateral shifting device is provided, including a lateral shifting frame movably mounted on a frame crossbeam and the aforementioned drive device.

[0011] According to another aspect of this application, a backhoe loader is provided, including the aforementioned lateral shifting device, wherein the lateral shifting frame is rotatably connected to the rotating body of the backhoe loader.

[0012] The beneficial effects achieved by this utility model are as follows: This utility model utilizes the characteristics of the movable pulley mechanism to save effort and reduce displacement. The moving part is used as the power source, and the side-shifting frame is moved by the traction rope. When the moving part moves one unit distance, the side-shifting frame can move two unit distances, thereby realizing efficient and fast side-shifting of the side-shifting frame. Attached Figure Description

[0013] Figure 1 This is a frontal view of the side shifter drive unit mounted on the vehicle frame. Figure 2 A three-dimensional schematic diagram of the side shifter drive unit mounted on the vehicle frame; Figure 3 This is a schematic diagram of the movable pulley mechanism when the side-shifting frame is located in the middle. Figure 4 This is a schematic diagram of the movable pulley mechanism when the side-shifting frame is located on the left side; Figure 5 This is a schematic diagram of the movable pulley mechanism when the side-shifting frame is located on the right side. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0015] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application.

[0016] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0017] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0018] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0019] It should be noted that similar symbols and letters in the following figures represent similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0020] In excavator loaders, the side shifter 3 is typically movably mounted on the frame crossbeam 4. Since the side shifter 3 is an existing component in excavator loaders, its movability will not be described in detail here. This application provides a drive device for moving the side shifter 3; see [link to relevant documentation]. Figure 1 and2 The device may include at least a movable part 1 mounted on the frame. Both ends of the movable part 1 are rotatably connected to pulleys 2. A traction rope 5 is wound around the pulleys 2. The two ends of the traction rope 5 that pass over the pulleys 2 are connected to the frame and the side shift frame 3 respectively, and together with the pulleys 2, they form a movable pulley 2 mechanism.

[0021] The above-mentioned device utilizes the labor-saving and displacement-efficient characteristics of the movable pulley 2 mechanism. The moving part 1 is used as the power source, and the side-shifting frame 3 is moved by the traction rope 5. When the moving part 1 moves one unit distance, the side-shifting frame 3 can move two unit distances, thereby achieving efficient and rapid side-shifting of the side-shifting frame 3.

[0022] It should be noted that the aforementioned moving part 1 can be a slider, mounted on the frame via a lead screw structure and driven by a motor or the like. However, in some embodiments, to save space and simplify the structure, the moving part 1 can be a cylinder body of a bidirectional telescopic cylinder, specifically a telescopic electric cylinder. The telescopic end of the cylinder is connected to the frame, and the movement of the cylinder body can be achieved simply by extending or retracting both ends.

[0023] Because the side-shifting frame 3 moves along the frame crossbeam 4, in order to make the structure more compact, such as Figure 1 and 2 The telescopic cylinder is parallel to the crossbeam 4 of the frame, and can be set below the crossbeam 4. The two telescopic ends of the telescopic cylinder are connected to the telescopic cylinder bracket by a pin. The telescopic cylinder bracket can be a steel plate, which is fixed at the connection between the crossbeam 4 and the outrigger.

[0024] It should be noted that the traction rope 5 is made of steel wire rope that is not easy to break. The number of steel wire ropes can be determined according to the actual situation. For example, four steel wire ropes can be wrapped around each pulley 2.

[0025] To facilitate the connection of wire ropes, a rigid tube can be pressed at the end of the wire rope and threads can be made on the rigid tube. The corresponding wire rope bracket is fixed at the connection point of the frame and the side shift frame 3. A through hole is made in the wire rope bracket, the rigid tube passes through the through hole and is fixed by a nut. The nut can not only be used to fix the wire rope, but also to adjust the tension of the wire rope.

[0026] It should be noted that, in order to ensure the consistency of the left and right movement range of the side-shifting frame 3, the two ends of the traction rope 5 are respectively connected to the middle of the frame crossbeam 4 and the middle of the side-shifting frame 3. That is, wire rope brackets are fixed to the middle of both the frame crossbeam 4 and the middle of the side-shifting frame 3. The wire rope bracket can be made directly from a steel plate, such as a steel plate with a thickness of 15mm.

[0027] It should be noted that in some embodiments, both ends of the traction rope 5 that passes around the pulley 2 at one end of the moving part 1 are facing the other end of the moving part 1, that is, the ends of the traction ropes 5 on both sides are facing opposite directions, which can realize the simplest moving pulley 2 structure with two winding ropes.

[0028] See Figure 3 When the side shift frame 3 is not moving, it is located in the middle of the frame crossbeam 4. Taking the left pulley 2 as an example, the length of the first section of the wire rope is the same as the length of the second section of the wire rope. The first section of the wire rope is the wire rope section between the pulley 2 and the wire rope support of the side shift frame 3, and the second section of the wire rope is the wire rope section between the pulley 2 and the wire rope support of the frame.

[0029] See Figure 4 When the side-shifting frame 3 moves to the left side of the frame, taking the left pulley 2 as an example, the length of the first section of the wire rope is much shorter than the length of the second section of the wire rope, while the wire rope corresponding to the right pulley 2 is exactly the opposite.

[0030] See Figure 5 When the side-shifting frame 3 moves to the right side of the frame, taking the left pulley 2 as an example, the length of the first section of the wire rope is much greater than the length of the second section of the wire rope, while the wire rope corresponding to the right pulley 2 is exactly the opposite.

[0031] The above-mentioned device drives the pulleys 2 at both ends to move left and right by moving the cylinder body of the telescopic electric cylinder left and right, thereby generating relative movement between the pulleys 2 and the wire rope. Since the side-shifting frame 3 is a free end, the wire rope can drive the side-shifting frame 3 to slide left and right relative to the vehicle frame, thereby realizing power side-shifting.

[0032] The above-mentioned device adopts a movable pulley 2 mechanism, which is arranged inside the side-shifting frame 3. Compared with the conventional double hydraulic cylinder arrangement on the upper end of the side-shifting frame 3, it has better lateral stability and lower design cost.

[0033] This application also discloses a lateral shifting device, which may include at least a movably mounted lateral shifting frame 3 on the vehicle frame and the aforementioned driving device. The driving device drives the lateral shifting frame 3 to move on the vehicle frame. For details, please refer to [link to relevant documentation]. Figure 1 and 2 .

[0034] This application also discloses an excavator loader, which may include at least the above-mentioned side-shifting device, wherein the side-shifting frame 3 is rotatably connected to the rotating body of the excavator loader, and the rotating body is rotatably connected to the excavator arm.

[0035] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A side-shifting frame drive device, characterized in that, It includes a movable part mounted on the frame, with pulleys rotatably connected to both ends of the movable part. A traction rope is wound around the pulley, and the two ends of the traction rope that passes over the pulley are connected to the frame and the side shift frame respectively, forming a movable pulley mechanism with the pulley.

2. The apparatus according to claim 1, characterized in that, The traction rope that passes over the pulley at one end of the moving part has both ends pointing towards the other end of the moving part.

3. The apparatus according to claim 1 or 2, characterized in that, The moving part is the cylinder body of a bidirectional telescopic cylinder, and the telescopic end of the telescopic cylinder is connected to the frame.

4. The apparatus according to claim 3, characterized in that, The telescopic cylinder is parallel to the crossbeam of the frame.

5. The apparatus according to claim 1 or 2, characterized in that, The two ends of the traction rope are connected to the middle of the frame crossbeam and the middle of the side shift frame, respectively.

6. The apparatus according to claim 5, characterized in that, The traction rope is a steel wire rope.

7. A lateral displacement device, characterized in that, It includes a movable side-shifting frame mounted on the crossbeam of the frame and the drive unit as described in any one of claims 1 to 6.

8. An excavator loader, characterized in that, Includes the lateral shifting device as described in claim 7, wherein the lateral shifting frame is rotatably connected to the rotating body of the excavator loader.

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