Lifting chassis

Abstract

The utility model relates to the technical field of agricultural machinery, and provides a lifting chassis which comprises a frame, a suspension frame arranged on the frame, a middle axle arranged at one end of the suspension frame, a rear axle arranged at the other end of the suspension frame and a first telescopic part arranged on the frame, and the first telescopic part can drive the middle axle to lift after stretching out and drawing back. By means of the technical scheme, the problem that in the prior art, a six-drive agricultural locomotive is large in turning radius is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and specifically, to a lifting chassis. Background Art

[0002] Most of the existing agricultural locomotives are tracked, two-wheel drive, four-wheel drive or six-wheel drive. Due to the working environment, the two-wheel drive or four-wheel drive agricultural locomotives cannot form good grip. Although the tracked or six-wheel drive agricultural locomotives can solve this problem, the tracked agricultural locomotives are less comfortable and less maneuverable. Therefore, the six-wheel drive layout form is generally adopted for agricultural locomotives. However, the six-wheel drive agricultural locomotives have the problem of too large turning radius and are not convenient to pass on curved or narrow roads. Content of the Utility Model

[0003] The utility model provides a lifting chassis, which solves the problem of too large turning radius of the six-wheel drive agricultural locomotives in the prior art.

[0004] The technical solution of the utility model is as follows:

[0005] A lifting chassis, comprising:

[0006] A frame,

[0007] A suspension, which is arranged on the frame,

[0008] A middle axle, which is arranged at one end of the suspension,

[0009] A rear axle, which is arranged at the other end of the suspension,

[0010] A first telescopic member, which is arranged on the frame, and drives the middle axle to lift after telescoping.

[0011] Optionally, it further comprises:

[0012] A support plate, which is arranged on the frame,

[0013] A sliding plate, one end of which is arranged at the output end of the first telescopic member, and the other end of which is slidably arranged on the support plate, and the first telescopic member abuts against the middle axle through the sliding plate after telescoping.

[0014] Optionally, it further comprises buffer members. There are multiple buffer members, and buffer members are arranged between the middle axle and the rear axle and the frame respectively. The buffer members include:

[0015] Guide blocks, which are arranged on the middle axle and the rear axle,

[0016] Connecting rod, one end of the connecting rod is rotatably arranged on the vehicle frame, and the other end of the connecting rod is slidably arranged on the guide block.

[0017] Optionally, it further includes a second telescopic member, the second telescopic member is arranged on the vehicle frame, and after the second telescopic member expands and contracts, it drives the rear axle to lift.

[0018] Optionally, it further includes:

[0019] Cross beam, the cross beam is arranged on the vehicle frame,

[0020] Support rod, one end of the support rod is rotatably arranged on the vehicle frame, and the other end of the support rod is arranged on the cross beam.

[0021] Optionally, it further includes a front axle, the vehicle frame is a split vehicle frame, and the vehicle frame includes:

[0022] Front vehicle frame, the front axle is arranged on the front vehicle frame,

[0023] Rear vehicle frame, the middle axle and the rear axle are arranged on the rear vehicle frame, and the front vehicle frame is hinged to the rear vehicle frame.

[0024] Optionally, it further includes a third telescopic member, and the third telescopic member is hinged to the front vehicle frame and the rear vehicle frame.

[0025] Optionally, the front axle is rotatably arranged on the front vehicle frame, and the front axle includes:

[0026] Front axle housing, the front axle housing is hinged to the rear vehicle frame,

[0027] Wheel set, the wheel set is rotatably arranged at both ends of the front axle housing,

[0028] Steering tie rod, both ends of the steering tie rod are arranged on the wheel set, and after the output end of the steering tie rod expands and contracts, it drives the wheel set to rotate.

[0029] Optionally, the front vehicle frame further includes a balancing member, and the balancing member includes:

[0030] First bracket, the first bracket is arranged on the front vehicle frame,

[0031] Second bracket, the second bracket is arranged on the front axle, and the second bracket is hinged to the first bracket.

[0032] The working principle and beneficial effects of the present utility model are:

[0033] In the present utility model, in order to solve the problem of the large turning radius of six-wheel agricultural locomotives in the prior art, a first telescopic member is provided on the chassis. The first telescopic member drives the middle bridge to lift. A suspension is provided on the chassis. The suspension is a leaf spring. One end of the suspension is connected to the middle bridge, and the other end is connected to the rear bridge. During steering, after the first telescopic member of the middle bridge extends and abuts against the middle bridge, the middle bridge is lifted to ensure that the two tires of the middle bridge do not contact the ground. The six-wheel vehicle becomes a four-wheel vehicle, which can eliminate the friction brought by the middle bridge wheels during steering and can achieve a smaller turning radius. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in conjunction with the drawings in the preferred embodiments.

[0035] Figure 1 Structural schematic diagram of the present utility model;

[0036] Figure 2 Enlarged view of the leaf spring of the present utility model;

[0037] Figure 3 Enlarged view of the front bridge of the present utility model;

[0038] Figure 4 Structural schematic diagram of the present utility model from another angle;

[0039] Figure 5 Enlarged view of the balance member of the present utility model.

[0040] In the figure: 1, vehicle frame; 2, suspension; 3, middle bridge; 4, rear bridge; 5, first telescopic member; 6, support plate; 7, sliding plate; 8, buffer member, 801, guide block, 802, connecting rod; 9, second telescopic member; 10, cross beam; 11, support rod; 12, front bridge, 101, front vehicle frame, 102, rear vehicle frame; 13, third telescopic member; 1011, front axle housing; 1012, wheel set; 1013, steering tie rod; 14, balance member, 1401, first bracket, 1402, second bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or in the prior art, the specific embodiments of the present utility model will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings and other embodiments can be obtained.

[0042] For the sake of simplicity of the drawings, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product as a whole. Additionally, for the sake of simplicity and ease of understanding of the drawings, in some drawings, for components with the same structure or function, only one of them is schematically shown, or only one of them is labeled. In this text, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0043] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", and "join" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0044] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0045] Referring to Figures 1 to 5 , which is the first embodiment of the present utility model, a lifting chassis is proposed, including a vehicle frame 1, a suspension 2 is arranged on the vehicle frame 1, a middle bridge 3 is arranged at one end of the suspension 2, a rear bridge 4 is arranged at the other end of the suspension 2, a first telescopic member 5 is arranged on the vehicle frame 1, and after the first telescopic member 5 extends and retracts, it drives the middle bridge 3 to lift.

[0046] In this embodiment, in order to solve the problem of the large turning radius of six-wheel drive agricultural locomotives in the prior art. A first telescopic member 5 is arranged on the chassis, the first telescopic member 5 drives the middle bridge 3 to lift, a suspension 2 is arranged on the chassis, the suspension 2 is a leaf spring, one end of the suspension 2 is connected to the middle bridge 3, and the other end is connected to the rear bridge 4. During steering, after the first telescopic member 5 of the middle bridge 3 extends and retracts and abuts against the middle bridge 3, then the middle bridge 3 is lifted to ensure that the two tires of the middle bridge 3 do not contact the ground, and the six-wheel drive vehicle becomes a four-wheel drive vehicle, which can eliminate the friction generated by the middle bridge during steering and can turn a smaller angle.

[0047] Furthermore, it further includes a support plate 6, the support plate 6 is arranged on the vehicle frame 1, one end of a sliding plate 7 is arranged at the output end of the first telescopic member 5, and the other end of the sliding plate 7 is slidably arranged on the support plate 6. After the first telescopic member 5 extends and retracts, it abuts against the middle bridge 3 through the sliding plate 7.

[0048] In this embodiment, in order to enable the telescopic end of the first telescopic member 5 to lift the middle bridge 3, the telescopic end of the first telescopic member 5 is connected to the sliding plate 7. The sliding plate 7 is slidably arranged on the support plate 6, and after the sliding plate 7 is telescoped, it abuts against the middle bridge 3. When the first telescopic member 5 lifts the sliding plate 7, the sliding plate 7 can lift the middle bridge 3 within the stroke.

[0049] Furthermore, it further includes a buffer member 8. There are multiple buffer members 8. Buffer members 8 are arranged between both the middle bridge 3 and the rear bridge 4 and the vehicle frame 1. The buffer member 8 includes a guide block 801. The guide block 801 is arranged on the middle bridge 3 and the rear bridge 4. One end of the connecting rod 802 is rotatably arranged on the vehicle frame 1, and the other end of the connecting rod 802 is slidably arranged on the guide block 801.

[0050] In this embodiment, in order to provide sufficient buffering for the vehicle, buffer members 8 are arranged on both sides of the vehicle frame 1. The connecting rods 802 are arranged on both sides of the suspension 2, and the other side of the connecting rods 802 is slidably arranged on the guide blocks 801, which can ensure that when the middle bridge 3 is lifted, the ends of the connecting rods 802 near the middle bridge 3 and the rear bridge 4 can move in the specified direction along the guide blocks 801.

[0051] Furthermore, it includes a second telescopic member 9. The second telescopic member 9 is arranged on the vehicle frame 1, and after the second telescopic member 9 is telescoped, it drives the rear bridge 4 to lift and lower.

[0052] In this embodiment, in order to ensure better grip of the rear bridge 4, the second telescopic member 9 is arranged in the direction of the vehicle frame 1 close to the rear bridge 4. The telescopic end of the second telescopic member 9 is connected to the rear bridge 4. When the middle bridge 3 is lifted, the telescopic end of the second telescopic member 9 presses down the rear bridge 4, and the grip of the rear bridge 4 becomes tighter after being pressed down.

[0053] Furthermore, it further includes a cross beam 10. The cross beam 10 is arranged on the vehicle frame 1. One end of the support rod 11 is rotatably arranged on the vehicle frame 1, and the other end of the support rod 11 is arranged on the cross beam 10.

[0054] In this embodiment, in order to ensure sufficient strength of the vehicle frame 1, a cross beam 10 is arranged in the middle of the vehicle frame 1 to ensure strength. One end of the support rod 11 is rotatably arranged on the cross beam 10, and the other end is arranged on the rear bridge 4 and the middle bridge 3. When the middle bridge 3 and the rear bridge 4 move, the connection between the support rod 11 and the cross beam 10 ensures the structural strength of the vehicle.

[0055] Furthermore, it further includes a front axle 12. The vehicle frame 1 is a split vehicle frame. The vehicle frame 1 includes a front vehicle frame 101. The front axle 12 is arranged on the front vehicle frame 101, the middle bridge 3 and the rear bridge 4 are arranged on the rear vehicle frame 102, and the front vehicle frame 101 and the rear vehicle frame 102 are hinged.

[0056] In this embodiment, in order to enable the vehicle head to turn, the front vehicle frame 101 and the rear vehicle frame 102 are hinged. The middle bridge 3 and the rear bridge 4 are arranged on the rear vehicle frame 102, and the front axle 12 is arranged on the front vehicle frame 101.

[0057] Further, it further includes a third telescopic member 13, and the third telescopic member 13 is hinged to the front vehicle frame 101 and the rear vehicle frame 102.

[0058] In this embodiment, in order to ensure the steering angle, the third telescopic member 13 is provided on both sides of the hinge point, and when steering, the third telescopic member 13 expands and contracts in opposite directions to perform the cornering.

[0059] Further, the front axle 12 is rotatably provided on the front vehicle frame 101. The front axle 12 includes a front axle housing 1011, the front axle housing 1011 is hinged to the rear vehicle frame 102, the wheel sets 1012 are rotatably provided on both sides of the front axle housing 1011, both ends of the steering tie rod 1013 are provided on the wheel sets 1012, and when the output end of the steering tie rod 1013 expands and contracts, it drives the wheel sets 1012 to rotate.

[0060] In this embodiment, in order to further expand the steering angle, the wheel sets 1012 and the front axle housing 1011 are hinged at the connection position, the steering tie rod 1013 is fixedly connected to the wheel sets 1012, and the output ends on both sides of the steering tie rod 1013 can control the turning direction of the wheel sets 1012.

[0061] Further, the front vehicle frame 101 further includes a balancing member 14. The balancing member 14 includes a first bracket 1401, the first bracket 1401 is provided on the front vehicle frame 101, a second bracket 1402 is provided on the front axle 12, and the second bracket 1402 is hinged to the first bracket 1401.

[0062] In this embodiment, in order to ensure the driver's comfort, a balancing member 1014 is provided at the connection between the front vehicle frame 101 and the front axle housing 12. The first bracket 1401 and the second bracket 1402 are hinged. After shaking occurs during turning, the first bracket 1401 and the second bracket 1402 can perform opposite shaking to cancel the force.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A lifting chassis, characterized in that, Comprising: Frame (1), Suspension (2), the suspension (2) is arranged on the frame (1), Intermediate axle (3), the intermediate axle (3) is arranged at one end of the suspension (2), Rear axle (4), the rear axle (4) is arranged at the other end of the suspension (2), First telescopic member (5), the first telescopic member (5) is arranged on the frame (1), and after the first telescopic member (5) extends and retracts, it can drive the intermediate axle (3) to lift and lower.

2. The lifting chassis according to claim 1, wherein Further comprising: Support plate (6), the support plate (6) is arranged on the frame (1), Sliding plate (7), one end of the sliding plate (7) is arranged at the output end of the first telescopic member (5), the other end of the sliding plate (7) is slidably arranged on the support plate (6), and after the first telescopic member (5) extends and retracts, it abuts against the intermediate axle (3) through the sliding plate (7).

3. The lifting chassis according to claim 1, characterized in that, Further comprising buffer members (8), there are a plurality of the buffer members (8), and the buffer members (8) are arranged between the intermediate axle (3) and the rear axle (4) and the frame (1), and the buffer members (8) include: Guide block (801), the guide block (801) is arranged on the intermediate axle (3) and the rear axle (4), Connecting rod (802), one end of the connecting rod (802) is rotatably arranged on the frame (1), and the other end of the connecting rod (802) is slidably arranged on the guide block (801).

4. A lifting chassis according to claim 1, characterized in that, Further comprising: Second telescopic member (9), the second telescopic member (9) is arranged on the frame (1), and after the second telescopic member (9) extends and retracts, it can drive the rear axle (4) to lift and lower.

5. A lifting chassis according to claim 1, characterized in that, Further comprising Cross beam (10), the cross beam (10) is arranged on the frame (1), Support rod (11), one end of the support rod (11) is rotatably arranged on the frame (1), and the other end of the support rod (11) is slidably and rotatably arranged on the cross beam (10).

6. The lifting chassis according to claim 1, wherein Further comprising a front axle (12), the frame (1) is a split frame, and the frame (1) includes: Front frame (101), the front axle (12) is arranged on the front frame (101), Rear frame (102), the intermediate axle (3) and the rear axle (4) are arranged on the rear frame (102), and the front frame (101) is hinged to the rear frame (102).

7. The lifting chassis according to claim 6, wherein, Further comprising a third telescopic member (13), the third telescopic member (13) is hinged to the front frame (101) and the rear frame (102).

8. The lifting chassis according to claim 6, characterized in that, The front axle (12) is rotatably arranged on the front frame (101), and the front axle (12) includes: Front axle housing (1011), the front axle housing (1011) is hinged to the rear frame (102), Wheel set (1012), the wheel set (1012) is rotatably arranged at both ends of the front axle housing (1011), Steering tie rod (1013), both ends of the steering tie rod (1013) are arranged on the wheel set (1012), and after the output end of the steering tie rod (1013) extends and retracts, it drives the wheel set (1012) to rotate.

9. The lifting chassis according to claim 8, characterized in that, The front vehicle frame (101) further includes a balancing member (14), and the front axle (12) is rotatably arranged on the front vehicle frame (101) through the balancing member (14). The balancing member (14) includes: A first bracket (1401), and the first bracket (1401) is arranged on the front vehicle frame (101). A second bracket (1402), and the second bracket (1402) is arranged on the front axle (12). The second bracket (1402) is hinged to the first bracket (1401).

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