Tractor lifter and tractor

Abstract

The utility model discloses a tractor lifter and a tractor, the lifter comprises a supporting bottom plate, a lifter shell and a mounting structure are arranged on the supporting bottom plate, and the mounting structure is used for mounting tractor accessories; a hydraulic oil way and a hydraulic oil cavity are arranged on the inner side of the lifter shell. One end of the hydraulic oil way is connected with a hydraulic oil inlet, the other end of the hydraulic oil way is connected with a hydraulic working oil port, and the hydraulic oil inlet and the hydraulic working oil port are formed in the lifter shell. The hydraulic oil cavities are communicated with a system oil return opening, and the system oil return opening is formed in the lifter shell. Therefore, the hydraulic oil circuit, the hydraulic oil cavity, the hydraulic oil inlet, the hydraulic working oil port and the system oil return port are integrated on the lifter shell, connection and distribution of external hydraulic pipelines are reduced, the layout of the lifter matched with a tractor is simplified, maintenance is more convenient, hydraulic oil pipeline installation and rationality and light-weight arrangement of interface positions are facilitated, and the structure is simple. And the rationality of the tractor structure configuration is improved.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, and in particular to a tractor lift and a tractor. Background Technology

[0002] Currently, the rear lifting system of various tractor lifts is connected to various hydraulic valves and hydraulic oil pipelines, which makes the installation and laying of hydraulic valve oil pipelines troublesome. It is also difficult to sort out the connection points of the pipelines during maintenance. In addition, traditional lifting arms are relatively thick and heavy in structure, resulting in high manufacturing costs.

[0003] To address the aforementioned technical problems, those skilled in the art urgently need to design a tractor lift that integrates the hydraulic circuitry into the lift housing, thereby simplifying the layout and facilitating installation. Utility Model Content

[0004] To address the aforementioned shortcomings, the technical problem to be solved by this utility model is to provide a tractor lift and tractor that reduces the distribution of external hydraulic pipeline connections. The layout of the tractor equipped with this lift is simpler, maintenance is more convenient, the installation of hydraulic oil pipelines and the rationality of interface positions are facilitated, the structure is lighter, the lift housing frees up space to facilitate the installation of more tractor accessories, and the overall layout is more rational.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A tractor lifter includes a support base plate, a lifter housing mounted on the support base plate, and a mounting structure mounted on the support base plate for mounting tractor accessories. The inner side of the lifter housing is provided with at least one hydraulic circuit and at least one hydraulic chamber. One end of each hydraulic circuit is connected to a hydraulic inlet, and the other end of each hydraulic circuit is connected to a hydraulic working port. The hydraulic inlet and the hydraulic working port are respectively located on the lifter housing. Each hydraulic chamber communicates with a system return port, which is also located on the lifter housing.

[0007] In a preferred embodiment, two hydraulic oil chambers are provided on the inner side of the elevator housing. The two hydraulic oil chambers are defined as the first hydraulic oil chamber and the second hydraulic oil chamber, respectively. The system return port communicating with the first hydraulic oil chamber is defined as the first system return port, and the system return port communicating with the second hydraulic oil chamber is defined as the second system return port. The first system return port and the second system return port are respectively located on both sides of the elevator housing.

[0008] In a preferred embodiment, a lifting shaft is installed at the top of the lifting device housing, and lifting arms are respectively installed at both ends of the lifting shaft via copper bushings.

[0009] In a preferred embodiment, the end of the lifting arm away from the lifting shaft is provided with a first connecting shaft hole; an annular boss is provided on the outer side of the first connecting shaft hole, the annular boss is coaxially arranged with the first connecting shaft hole, and a pin hole is provided on the annular boss, the pin hole passing through the annular boss vertically.

[0010] In a preferred embodiment, a second connecting shaft hole is provided in the middle of the lifting arm, and at least one bolt fixing hole is provided on the lifting arm around the second connecting shaft hole, with each bolt fixing hole being perpendicular to the lifting arm.

[0011] In a preferred embodiment, shaft end baffles are provided at both ends of the lifting shaft, and the shaft end baffles are connected to the lifting shaft by fasteners.

[0012] In a preferred embodiment, the mounting structure includes at least one mounting platform.

[0013] The preferred method is that all the mounting platforms are evenly distributed.

[0014] In a preferred embodiment, the inner side of the lifting device housing is provided with two hydraulic oil circuits, which are respectively defined as hydraulic oil circuit A and hydraulic oil circuit B.

[0015] A tractor including the aforementioned tractor lift.

[0016] The beneficial effects of this utility model after adopting the above technical solution are:

[0017] The present invention relates to a tractor lifter and a tractor, wherein the lifter includes a supporting base plate, a lifter housing is disposed on the supporting base plate, and a mounting structure is disposed on the supporting base plate for mounting tractor accessories and auxiliary supports; the inner side of the lifter housing is provided with at least one hydraulic oil circuit and at least one hydraulic oil chamber; one end of each hydraulic oil circuit is connected to a hydraulic oil inlet, and the other end of each hydraulic oil circuit is connected to a hydraulic working oil port, the hydraulic oil inlet and the hydraulic working oil port being respectively opened on the lifter housing; each hydraulic oil chamber is connected to a system return oil port, the system return oil port being opened on the lifter housing. As can be seen, this utility model integrates the hydraulic oil circuit, hydraulic oil chamber, hydraulic oil inlet, hydraulic working oil port, and system return oil port onto the lifting device housing, thereby reducing the need for external hydraulic pipeline connections. The layout of the tractor equipped with this lifting device is simpler, maintenance is more convenient, and the installation of hydraulic oil pipelines and the rationality of interface positions are facilitated. The structure is lighter, and the space freed up by the lifting device housing can provide more installation structures, making it easier to install more tractor accessories. As a result, the tractor of this utility model has a more reasonable structural configuration and improves the overall aesthetics of the tractor. Attached Figure Description

[0018] Figures 1-3 This is a schematic diagram of the tractor lift in this utility model;

[0019] Figure 4 This is a front view of the tractor lift in this utility model;

[0020] Figure 5 yes Figure 4 Cross-sectional view along the AA direction;

[0021] Figure 6 This is a structural schematic diagram of the tractor lift in this utility model from another angle;

[0022] Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle;

[0023] Figure 8 This is a magnified view of a tractor elevator.

[0024] In the diagram: 1-Left lifting arm, 2-Bracket, 3-Right lifting arm, 4-Right shaft end baffle, 5-Connecting bolt, 6-Hydraulic working port, 60-Hydraulic working port A, 61-Hydraulic working port B, 7-Mounting platform, 8-Lifter housing, 9-Hydraulic inlet, 90-Hydraulic inlet A, 91-Hydraulic inlet B, 10-Left shaft end baffle, 11-First system return port, 12-Lifting shaft, 13-Copper bushing, 14-High-pressure tee oil passage, 15-Support base plate, 16-Second system return port, 17-Pin hole, 18-Annular boss, 19-Bolt fixing hole, 100-First connecting shaft hole, 200-Second connecting shaft hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Example 1:

[0029] like Figures 1 to 8 As shown, a tractor lifter includes a support base plate 15, which is used for a matching connection and fixation with the rear axle housing of the tractor. A lifter housing 8 is provided on the top of the support base plate 15, and an installation structure is also provided on the top of the support base plate 15 for installing tractor accessories and auxiliary supports. The inner side of the lifter housing 8 is provided with at least one hydraulic oil circuit and at least one hydraulic oil chamber. One end of each hydraulic oil circuit is connected to a hydraulic oil inlet 9, and the other end of each hydraulic oil circuit is connected to a hydraulic working oil port 6. The hydraulic oil inlet 9 and the hydraulic working oil port 6 are respectively opened on the lifter housing 8. Each hydraulic oil chamber is connected to a system return oil port, which is opened on the lifter housing 8.

[0030] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, two hydraulic circuits are provided inside the lifting device housing. These two hydraulic circuits are defined as hydraulic circuit A and hydraulic circuit B, respectively. Hydraulic circuit A is specifically... Figure 5 The high-pressure three-way hydraulic circuit 14 is configured as follows: Specifically, hydraulic circuit A is connected to a hydraulic inlet A90 and a hydraulic working port A60 at both ends, and high-pressure three-way hydraulic circuit 14 is connected to a hydraulic inlet B91 and a hydraulic working port B61 at both ends. In actual connection, hydraulic inlets A90 and B91 are connected to the two ports of the hydraulic valves in the system hydraulic system, which can be done via hoses; hydraulic working ports A60 and B61 are connected to the lifting cylinders.

[0031] like Figure 1 , Figure 3 , Figure 6 and Figure 7As shown, in this embodiment, the inner side of the lifter housing 8 is provided with two hydraulic oil chambers, which are defined as the first hydraulic oil chamber and the second hydraulic oil chamber, respectively. The system return port communicating with the first hydraulic oil chamber is defined as the first system return port 11, and the system return port communicating with the second hydraulic oil chamber is defined as the second system return port 16. The first system return port 11 and the second system return port 16 are respectively located on both sides of the lifter housing 8. In a preferred embodiment, the lifter housing 8 is provided with four second system return ports 16, and the second system return ports 16 are located on different sides from the mounting structure. In actual connection, both the first system return port and the second system return port can be connected to the tractor hydraulic system through hoses.

[0032] like Figures 1 to 8 As shown in the figure, this utility model integrates the hydraulic inlet 9 and hydraulic working port 6 of the hydraulic oil circuit onto the lifting housing 8, thereby reducing the distribution of external hydraulic pipeline connections. The layout of the lifting device for the tractor is more simplified, maintenance is more convenient, the installation of hydraulic oil pipelines and the rationality of interface positions are facilitated, the structure is lighter, and the lifting housing 8 frees up space to provide more installation structures, making it convenient to install more tractor accessories. At the same time, this utility model has the advantages of simple structure and easy implementation.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 8 As shown, a lifting shaft 12 is installed at the top of the lifting housing 8. Lifting arms are installed at both ends of the lifting shaft 12 via copper bushings 13. A bracket 2 is also provided on the lifting housing 8. For ease of description, the lifting arms installed at both ends of the lifting shaft 12 are defined as the left lifting arm 1 and the right lifting arm 3, respectively. Correspondingly, a left shaft end baffle 10 is installed at the left end of the lifting shaft 12 via connecting bolts 5, and a left shaft end baffle 10 and a right shaft end baffle 4 are installed at the right end of the lifting shaft 12 via connecting bolts 5 to provide a sealing function.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, in this embodiment, a first connecting shaft hole 100 is provided at the end of the lifting arm away from the lifting shaft 12; an annular boss 18 is provided on the outer side of the first connecting shaft hole 100. Specifically, the annular boss 18 is provided on the outward-facing side wall of the lifting device, and the annular boss 18 is coaxially arranged with the first connecting shaft hole 100. A pin hole 17 is provided on the annular boss 18, and the pin hole 17 passes through the annular boss 18 vertically. When the tractor implement is installed on the first connecting shaft hole 100 of the left lifting arm 1 and the right lifting arm 3 through the connecting shaft, a pin is inserted into the pin hole 17 to limit the connecting shaft and prevent it from rotating.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, a second connecting shaft hole 200 is provided in the middle of the left lifting arm 1 and the right lifting arm 3. At least one bolt fixing hole 19 is provided on the left lifting arm 1 and the right lifting arm 3 around the second connecting shaft hole 200. Each bolt fixing hole 19 is perpendicular to the lifting arm. In a preferred embodiment, two bolt fixing holes 19 can be provided. After the tractor implement is installed on the second connecting shaft hole 200 of the left lifting arm 1 and the right lifting arm 3 via the connecting shaft, pins are inserted into the bolt fixing holes 19 to limit the connecting shaft and prevent it from rotating. In a preferred embodiment, the bolt fixing hole 19 can also be provided on a convex ring platform, which is coaxially arranged with the second connecting shaft hole 200 and located on the outer wall of the left lifting arm 1 and the right lifting arm 3.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the installation structure includes at least one mounting platform 7. In a preferred embodiment, all mounting platforms 7 are evenly distributed, which makes connection more convenient.

[0037] Because the lifting housing 8 frees up space, more mounting platforms 7, such as six mounting platforms 7, can be set on the support base plate 15, so that more tractor parts can be installed, making the tractor space layout more reasonable and convenient, and meeting the usage requirements.

[0038] like Figures 1 to 8 As shown, the working principle of the lifting device is as follows: the left lifting arm 1 and the right lifting arm 3 are connected and installed at both ends of the lifting device housing 8 through the lifting shaft 12 and the copper bushing 13. The hydraulic oil delivered from the hydraulic pump pushes the left lifting arm 1 and the right lifting arm 3 to perform the lifting action through the piston rod of the oil cylinder. The right end baffle 4 and the left end baffle 10 are installed at both ends of the right lifting arm 3 and the left lifting arm 1 through the connecting bolts 5 to play a sealing role. The hydraulic oil pipe outputs from the hydraulic oil inlet 9 and is delivered to the oil tank from the hydraulic working oil port 6.

[0039] In summary, this utility model of a tractor lift integrates hydraulic valve components within the lift's housing, connecting oil pipes via a system return port, employing a concealed design. The system return port design allows hydraulic components to be directly installed inside the housing, reducing complex connection steps and making installation and maintenance more convenient. Connecting hydraulic components to the outside via the system return port reduces the length and number of external pipelines, resulting in a more compact overall structure and saving space. The system return port design shortens the connection path of hydraulic components, reducing pressure loss and improving the overall efficiency of the hydraulic system. The reduction in external pipelines and connectors leads to a lighter structure, lowering material and production costs. Installing hydraulic components inside the lift housing 8 reduces the risk of hydraulic oil leakage, enhancing system reliability. The reduced external pipelines result in a simpler overall appearance and improved aesthetics.

[0040] Optimal Implementation Example 2:

[0041] A tractor includes the tractor lift as described in Embodiment 1. Because the tractor lift arranges the hydraulic oil circuit, hydraulic inlet, hydraulic working oil port, and system return oil port on the lifter housing, it saves on hydraulic connection pipelines, facilitates the connection of the hydraulic system, and frees up space in the lifter housing, making the installation of tractor accessories more reasonable, meeting actual usage needs, and has a simple structure that is easy to implement.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, improvements to the same tractor lift and tractor made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tractor lifting device, comprising a supporting base plate, wherein a lifting device housing is disposed on the top of the supporting base plate, characterized in that, An installation structure is also provided on the top of the support base plate, which is used to install tractor parts and auxiliary brackets; The inner side of the lifting device housing is provided with at least one hydraulic oil circuit and at least one hydraulic oil chamber. One end of each hydraulic circuit is connected to a hydraulic inlet, and the other end of each hydraulic circuit is connected to a hydraulic working port. The hydraulic inlet and the hydraulic working port are respectively opened on the lifting device housing. Each of the hydraulic oil chambers is connected to the system return port, which is located on the elevator housing.

2. The tractor lift according to claim 1, characterized in that, The inner side of the lifting device housing is provided with two hydraulic oil chambers, which are defined as the first hydraulic oil chamber and the second hydraulic oil chamber, respectively. The system return port connected to the first hydraulic oil chamber is defined as the first system return port, and the system return port connected to the second hydraulic oil chamber is defined as the second system return port. The first system return port and the second system return port are respectively located on both sides of the elevator housing.

3. The tractor lift according to claim 1, characterized in that, A lifting shaft is installed at the top of the lifting device housing, and lifting arms are installed at both ends of the lifting shaft via copper bushings.

4. The tractor lift according to claim 3, characterized in that, The end of the lifting arm away from the lifting shaft is provided with a first connecting shaft hole; An annular boss is provided on the outer side of the first connecting shaft hole. The annular boss is coaxially arranged with the first connecting shaft hole. A pin hole is provided on the annular boss, and the pin hole passes through the annular boss vertically.

5. The tractor lift according to claim 3, characterized in that, The lifting arm has a second connecting shaft hole in the middle, and at least one bolt fixing hole is provided on the lifting arm around the second connecting shaft hole. Each bolt fixing hole is set perpendicular to the lifting arm.

6. The tractor lift according to claim 3, characterized in that, The lifting shaft is provided with shaft end baffles at both ends, and the shaft end baffles are connected to the lifting shaft by fasteners.

7. The tractor lift according to claim 1, characterized in that, The mounting structure includes at least one mounting platform.

8. The tractor lift according to claim 7, characterized in that, All the aforementioned mounting platforms are evenly distributed.

9. The tractor lift according to claim 1, characterized in that, The inner side of the lifting device housing is provided with two hydraulic oil circuits, which are defined as hydraulic oil circuit A and hydraulic oil circuit B, respectively.

10. A tractor, characterized in that, Includes the tractor lift as described in any one of claims 1 to 9.

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