Power side shifting device of backhoe loader

Abstract

The utility model belongs to the technical field of engineering machinery, and relates to a power side shifting device of a backhoe loader, which comprises a frame, a first oil cylinder, a second oil cylinder and a sliding frame, one side of the sliding frame is in sliding connection with a sliding rail groove on the frame through a sliding block, and the other side of the sliding frame is provided with a mounting seat for mounting an excavation working device. A first oil cylinder and a second oil cylinder are installed on the frame and the sliding frame respectively, one end of the second oil cylinder is connected with the first oil cylinder, and the sliding frame can transversely and laterally move on the frame along with stretching and retracting of the first oil cylinder and the second oil cylinder. When the device is used, a driver can easily drive the sliding frame to laterally move by controlling the two oil cylinders to stretch out and draw back, so that the purpose of driving the excavating working device to move left and right is achieved, the excavating range is enlarged, meanwhile, much operation time is not needed, and the road surface cannot be damaged; the two oil cylinders are installed in a parallel front-back combined mode, and the working view field of a driver can be guaranteed to the maximum degree.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering machinery, and in particular relates to a power side shift device of an excavator loader. Background Art

[0002] Backhoe loaders are commonly known as "two-headed". They have a loading mechanism at the front and an excavating mechanism at the rear. During construction, you only need to turn your seat to complete the transition from a loader to an excavator operator. Backhoe loaders are mainly used in urban and rural road construction and maintenance, cable laying, power and airport engineering, municipal construction, farmland water conservancy construction, rural housing construction, mountain excavation, and various construction projects undertaken by various small construction teams.

[0003] To achieve left and right lateral movement of the excavation device with traditional two-end excavators, it is necessary to first turn the bucket to one side, with the tip of the bucket against the ground, and then rotate the excavation device to enable the sliding frame to move horizontally to the left and right through the reverse force. The disadvantage of this method is that it not only tests the driver's skills, but also takes more operating time and will also damage the road surface. Utility Model Content

[0004] The utility model aims to solve the defects and shortcomings in the prior art and designs a power side shift device for an excavator loader which has a simple structure, is stable and reliable, is convenient and effective, and improves work efficiency.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a power side shift device of an excavator loader, comprising:

[0006] A vehicle frame, the vehicle frame being slidably connected to one side of a sliding frame, the sliding frame being used to mount an excavation working device;

[0007] a first oil cylinder, wherein the first oil cylinder is mounted on the vehicle frame;

[0008] A second oil cylinder, wherein the second oil cylinder is mounted on the sliding frame, and one end of the second oil cylinder is connected to the first oil cylinder;

[0009] When the first oil cylinder and the second oil cylinder are fully retracted, the sliding frame is located at the left end of the frame, and when the first oil cylinder and the second oil cylinder are fully extended, the sliding frame is located at the right end of the frame, that is, the sliding frame will move laterally on the frame as the first oil cylinder and the second oil cylinder extend and retract.

[0010] Preferably, one end of the first oil cylinder is connected to the first articulated support at the left end of the frame, and the other end is connected to the second articulated support at the end of the mounting tube. The mounting tube is slidably connected to the frame and can move left and right on the frame through the extension and retraction of the first oil cylinder.

[0011] Preferably, a sliding block is provided at the bottom of the mounting tube and is slidably matched with the guide rail on the frame, and the cross-section of the sliding block is designed to be an isosceles trapezoid.

[0012] Preferably, the mounting cylinder comprises a cylinder body and a sealing plate installed on one side of the cylinder body through a nut block, and a waist-shaped hole is provided on the sealing plate.

[0013] Preferably, the second oil cylinder is arranged front-to-back in parallel with the first oil cylinder, and the stroke length of the first oil cylinder is greater than the stroke length of the second oil cylinder.

[0014] Preferably, one end of the second oil cylinder is connected to the mounting tube via a third articulated support, and the other end is connected to the sliding frame via a fourth articulated support.

[0015] Preferably, one side of the sliding frame is slidably connected to a sliding rail groove on the frame via a sliding block, and the other side is provided with a mounting seat for mounting an excavating working device.

[0016] Preferably, two slide rail grooves are arranged in parallel.

[0017] Preferably, the first articulated support, the second articulated support and the third articulated support are all arranged in parallel with the mounting seat on the sliding frame, and the fourth articulated support is arranged perpendicularly to the mounting seat on the sliding frame.

[0018] After adopting the above technical solution, the power side shift device of the excavator loader provided by the utility model has the following beneficial effects:

[0019] (1) The utility model, through the design of the first oil cylinder and the second oil cylinder, enables the driver to easily achieve the lateral left and right movement of the excavation working device driven by the sliding frame by adjusting the extension and contraction of the hydraulic oil cylinder, thereby better improving the work efficiency;

[0020] (2) The utility model can ensure the driver's working field as much as possible by installing and connecting the first oil cylinder and the second oil cylinder in parallel in front and back;

[0021] (3) The utility model uses the installation tube as the connecting medium between the first oil cylinder and the second oil cylinder, which can avoid connecting by welding plates, thereby avoiding damage to the oil cylinders;

[0022] (4) The bottom of the utility model is designed with a trapezoidal sliding block and a guide rail that slides with it. On the one hand, it can ensure the spatial linear movement of the first oil cylinder during the extension and retraction process. On the other hand, when the second oil cylinder of the sliding frame is released from the clamped state, the center of gravity of the sliding frame and the excavation working device will move forward and downward. This trapezoidal cross-section track can, to a certain extent, restrain the tilting tendency of the first oil cylinder caused by the downward movement of the center of gravity of the sliding frame;

[0023] (5) The utility model is designed so that the third hinged support is parallel to the mounting seat on the sliding frame, thereby compensating for the displacement caused by the forward movement of the center of gravity of the sliding frame and the excavating working device when the first oil cylinder of the sliding frame is released from the clamping state. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the use state of a power side shift device of an excavator loader according to the utility model;

[0025] Figure 2 It is a structural schematic diagram of a power side shift device of an excavator loader according to the utility model;

[0026] Figure 3 It is a structural schematic diagram of the installation cylinder in the utility model.

[0027] Among them: frame 1, first cylinder 2, first articulated support 21, second articulated support 22, second cylinder 3, third articulated support 31, fourth articulated support 32, sliding frame 4, excavation working device 5, guide rail 6, mounting plate 7, mounting cylinder 8, cylinder body 9, sealing plate 10, nut block 11, sliding block 12. DETAILED DESCRIPTION

[0028] The present invention is further described clearly and completely below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0034] The utility model discloses a power side shift device for an excavator loader, such as Figure 1-3 As shown, it includes a frame 1, a first oil cylinder 2, a second oil cylinder 3 and a sliding frame 4, the frame 1 is slidably connected to the sliding frame 4, specifically, one side of the sliding frame 4 is slidably connected to the slide rail groove on the frame 1 through a slider, and the other side is provided with a mounting seat for mounting an excavating working device 5, the slide rail groove is provided with two, and is arranged in parallel up and down, the frame 1 and the sliding frame 4 are respectively installed with the first oil cylinder 2 and the second oil cylinder 3, and one end of the second oil cylinder 3 is connected to the first oil cylinder 2, specifically, the second oil cylinder 3 is arranged in parallel with the first oil cylinder 2 in front and back The arrangement can maximize the driver's working field of view, and the stroke length of the first cylinder 2 is greater than the stroke length of the second cylinder 3. When the sliding frame 4 does not need to move horizontally, the first cylinder 2 and the second cylinder 3 are clamped by hydraulic control. When the first cylinder 2 and the second cylinder 3 are fully retracted, the sliding frame 4 is located at the left end of the frame 1. When the first cylinder 2 and the second cylinder 3 are fully extended, the sliding frame 4 is located at the right end of the frame 1, that is, the sliding frame 4 will move laterally on the frame 1 as the first cylinder 2 and the second cylinder 3 are extended and retracted.

[0035] One end of the first oil cylinder 2 is connected to the first articulated support 21 at the left end of the frame 1, and the other end is connected to the second articulated support 22 at the end of the mounting tube 8. The axes of the first articulated support 21 and the second articulated support 22 are both arranged parallel to the axis of the mounting seat on the sliding frame 4. The second articulated support 22 is arranged at the end of the mounting tube 8 away from the first articulated support 21, and the end of the mounting tube 8 close to the first articulated support 21 is assembled through two mounting plates 7. The purpose is to ensure that even if the whole machine encounters bumpy road conditions during driving, the mounting tube 8 can remain relatively still with the first oil cylinder 2 and no collision will occur.

[0036] The mounting tube 8 is slidably connected to the frame 1 and can be moved left and right on the frame 1 through the extension and retraction of the first oil cylinder 2. Specifically, a sliding block 12 is provided at the bottom of the mounting tube 8, which slides with the guide rail 6 on the frame 1. The cross-section of the sliding block 12 is designed to be isosceles trapezoidal, and the sliding block 12 is made of nylon material, which can ensure that the driver can reduce the abnormal sound of iron hitting iron during operation and protect the frame from damage. The guide rail 6 is composed of two right-angled trapezoidal iron bars designed to cooperate with the two sides of the sliding block 12. The advantage of this structure is that when the second oil cylinder 3 on the sliding frame 4 is released from the clamping state, the first oil cylinder 2 tends to tilt up due to the downward shift of the center of gravity of the sliding frame 4 and the excavation working device 5, and the trapezoidal cross-section guide rail 6 composed of two right-angled trapezoidal iron bars will press the first oil cylinder 2 to prevent it from being subjected to large torque.

[0037] Furthermore, the mounting tube 8 includes a cylinder body 9 and a sealing plate 10 installed on one side of the cylinder body 9 through a nut block 11. The sealing plate 10 is provided with a waist-shaped hole. Such a design makes it easy to install the first oil cylinder 2 into the mounting tube 8 from the side without affecting the assembly of the hydraulic pipeline during assembly. At the same time, the sealing plate 10 can also ensure the structural stability and strength of the entire mounting tube 8.

[0038] One end of the second oil cylinder 3 is connected to the mounting tube 8 through the third articulated support 31, and the other end is connected to the sliding frame 4 through the fourth articulated support 32. The fourth articulated support 32 is vertically arranged to the mounting seat on the sliding frame 4, and the third articulated support 31 is parallel to the mounting seat on the sliding frame 4. When the second oil cylinder 3 of the sliding frame 4 is released from the clamping state, when the center of gravity of the entire sliding frame 4 and the excavating working device 5 moves forward, the design of this mounting seat can compensate for part of the displacement.

[0039] When the power side shift device of the excavator loader of the utility model is in use, the driver can easily drive the side shift of the sliding frame 4 by controlling the extension and retraction of the first oil cylinder 2 and the second oil cylinder 3, so as to achieve the purpose of driving the excavating working device 5 to move left and right, while increasing the excavation range, it does not need to spend a lot of operation time and will not damage the road surface. In addition, the two oil cylinders are installed in a parallel front and rear combination relationship, which can maximize the driver's working field.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A powered side shift device for an excavator loader, characterized in that: include: A vehicle frame (1), the vehicle frame (1) being slidably connected to one side of a sliding frame (4), the sliding frame (4) being used to install an excavation working device (5); A first oil cylinder (2), the first oil cylinder (2) being mounted on the vehicle frame (1); A second oil cylinder (3), the second oil cylinder (3) is mounted on the sliding frame (4), and one end of the second oil cylinder (3) is connected to the first oil cylinder (2); When the first oil cylinder (2) and the second oil cylinder (3) are fully retracted, the sliding frame (4) is located at the left end of the frame (1); when the first oil cylinder (2) and the second oil cylinder (3) are fully extended, the sliding frame (4) is located at the right end of the frame (1), that is, the sliding frame (4) will move laterally on the frame (1) as the first oil cylinder (2) and the second oil cylinder (3) extend and retract.

2. The power side shift device of an excavator loader according to claim 1, characterized in that: One end of the first oil cylinder (2) is connected to a first hinged support (21) at the left end of the vehicle frame (1), and the other end is connected to a second hinged support (22) at the end of the mounting tube (8); the mounting tube (8) is slidably connected to the vehicle frame (1) and can move left and right on the vehicle frame (1) through the extension and retraction of the first oil cylinder (2).

3. The power side shift device of an excavator loader according to claim 2, characterized in that: A sliding block (12) is provided at the bottom of the mounting tube (8) and is slidably matched with the guide rail (6) on the frame (1). The cross section of the sliding block (12) is designed to be an isosceles trapezoid.

4. The power side shift device of an excavator loader according to claim 2, characterized in that: The installation cylinder (8) comprises a cylinder body (9) and a sealing plate (10) installed on one side of the cylinder body (9) via a nut block (11), and a waist-shaped hole is provided on the sealing plate (10).

5. The powered side shift device of an excavator loader according to claim 1, characterized in that: The second oil cylinder (3) is arranged in parallel with the first oil cylinder (2) in front and back, and the stroke length of the first oil cylinder (2) is greater than the stroke length of the second oil cylinder (3).

6. The power side shift device of an excavator loader according to claim 2, characterized in that: One end of the second oil cylinder (3) is connected to the mounting tube (8) via a third hinged support (31), and the other end is connected to the sliding frame (4) via a fourth hinged support (32).

7. The power side shift device of an excavator loader according to claim 6, characterized in that: One side of the sliding frame (4) is slidably connected to a sliding rail groove on the vehicle frame (1) via a sliding block, and the other side is provided with a mounting seat for mounting an excavating working device (5).

8. The powered side shift device of an excavator loader according to claim 7, characterized in that: Two slide rail grooves are arranged in parallel.

9. The power side shift device of an excavator loader according to claim 7, characterized in that: The first articulated support (21), the second articulated support (22) and the third articulated support (31) are all arranged in parallel with the mounting seat on the sliding frame (4), and the fourth articulated support (32) is arranged perpendicular to the mounting seat on the sliding frame (4).

Images