Crawler tractor frame and crawler tractor

Abstract

The utility model relates to a crawler tractor frame, which comprises a front frame, a rear frame, a rear frame, a first transverse beam, a second transverse beam, a second transverse beam and a second longitudinal beam, and the front frame comprises a front supporting plate, a first transverse beam and a second longitudinal beam, the rear frame comprises a second cross beam and a second longitudinal beam connected with the second cross beam, and a plurality of limiting plates are arranged on the second longitudinal beam; one part of the hoop assemblies are arranged on the first longitudinal beam and the second longitudinal beam, and the other part of the hoop assemblies are located between every two adjacent limiting plates and located between the front supporting plate and a first mounting base of the front frame at the same time; and the other part of the hoop assembly is arranged on the first cross beam and the second cross beam. The second longitudinal beams on the two sides of the rear frame are each provided with a limiting plate, and the limiting plates can play a role in limiting the hoop assemblies. Meanwhile, when the front frame and the rear frame are disassembled, the front frame moves in the direction away from the rear frame in the longitudinal direction of the rear frame under the constraint of the limiting plate and in cooperation with the hoop assembly, and the disassembling direction of the front frame is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of tractor frames, in particular to a crawler tractor frame and a crawler tractor. Background Art

[0002] The crawler tractor frame is an important load-bearing skeleton of the tractor. The engine, radiator assembly, transmission assembly, three-point suspension mechanism, body, etc. all need to be installed on the frame. The tractor frame bears the dead weight of all assemblies, and the working load and impact load generated by walking, rotary tillage, and traction.

[0003] At present, crawler tractor frames mainly adopt integral frames, most of which are welded by channel steel. The integral tractor frame is heavy, and the radiator assembly, hood, and engine need to be completely removed when maintaining the engine and clutch. During the removal process, large lifting tools are required, but most farmers cannot provide lifting tools, which makes the maintenance of the engine and clutch inconvenient.

[0004] A tractor currently has a detachably connected frame, which can facilitate the removal of a diesel engine or a reduction box to a certain extent for maintenance. The frame includes a front frame and a rear frame, and the front frame and the rear frame are fixed with a U-shaped clamp, and the U-shaped clamp is in linear contact with the rear frame. Not only does the U-shaped clamp have a risk of sliding, but it also easily causes the risk of separation of the front and rear frames. Utility Model Content

[0005] The utility model provides a crawler tractor frame and a crawler tractor, so as to solve the technical problems that the front and rear frames of the existing detachably connected tractor frame are fixed by using U-shaped clamps, the U-shaped clamps are in linear contact with the rear frame, and there is a risk of sliding; and when the front and rear frames are disassembled, the direction in which the front frame is separated from the rear frame is not fixed.

[0006] The utility model discloses a crawler tractor frame, which comprises a front frame, a rear frame and a plurality of hoop assemblies, wherein the front frame comprises a front support plate, a first cross beam and a first longitudinal beam, wherein the first longitudinal beam is arranged between the front support plate and the first cross beam; the rear frame comprises a second cross beam and a first longitudinal beam arranged between the front support plate and the first cross beam;

[0007] The second longitudinal beam is connected to the second cross beam, and a plurality of limit plates are arranged on the second longitudinal beam; a part of the clamp assembly is arranged on the first longitudinal beam and the second longitudinal beam, and this part of the clamp assembly is located between two adjacent limit plates, and is also located between the front support plate and the first fixing seat of the front frame; another part of the clamp assembly is arranged on the first cross beam and the second cross beam.

[0008] Furthermore, the clamp assembly includes a U-shaped screw, a pad, a pressure plate, and an anti-loosening locking nut. The U-shaped screw is sleeved on the first longitudinal beam and the second longitudinal beam; the pad is arranged between the first longitudinal beam and the U-shaped screw, or between the second longitudinal beam and the U-shaped screw; the pressure plate is arranged at both ends of the U-shaped screw; and the anti-loosening locking nuts are arranged at both ends of the U-shaped screw.

[0009] Furthermore, the clamp assembly includes a U-shaped screw, a pad, a pressure plate, and an anti-loosening locking nut. The U-shaped screw is sleeved on the first beam and the second beam; the pad is arranged between the first beam and the U-shaped screw, or between the second beam and the U-shaped screw; the pressure plate is arranged at both ends of the U-shaped screw; and the anti-loosening locking nuts are arranged at both ends of the U-shaped screw.

[0010] Furthermore, the crawler tractor frame also includes a mounting assembly which is obliquely arranged on the rear frame.

[0011] Furthermore, the mounting assembly includes a first mounting seat and a second mounting seat, the first mounting seat is provided with a first mounting groove; the first mounting seat is arranged on the rear frame; the second mounting seat is provided with a second mounting groove; the second mounting seat is detachably connected to the first mounting seat; when the second mounting seat is arranged on the first mounting seat, the first mounting groove and the second mounting groove jointly form a mounting hole for installing the transmission housing.

[0012] Furthermore, the plane where the notch of the first mounting slot is located is arranged at 45° with the top surface of the rear frame.

[0013] Furthermore, the front frame is arranged above the rear frame.

[0014] Furthermore, there are multiple first longitudinal beams, and the multiple first longitudinal beams are arranged parallel to each other.

[0015] Furthermore, there are multiple second longitudinal beams, and the multiple second longitudinal beams are arranged parallel to each other.

[0016] The utility model discloses a crawler tractor, comprising a crawler tractor frame as described in any one of the above items.

[0017] The crawler tractor frame and crawler tractor provided by the utility model can achieve the following technical effects:

[0018] The front frame of the utility model is detachably connected to the rear frame through a clamp assembly. The design of the split frame makes it easy to disassemble the engine and clutch of the tractor, and facilitates maintenance in the later stage. At the same time, the second longitudinal beams on both sides of the rear frame are provided with limit plates, which can limit the clamp assembly. At the same time, when the front and rear frames are disassembled, under the constraint of the limit plates and in cooperation with the clamp assembly, the front frame moves along the longitudinal direction of the rear frame in a direction away from the rear frame, so that the disassembly direction of the front frame is fixed. By connecting the front and rear frames through the clamp assembly, the belt frame separation of the engine and the clutch, and the belt frame separation of the diesel engine and the reduction box can be effectively achieved, which is convenient for disassembly and maintenance.

[0019] The above general description and the following description are merely exemplary and explanatory and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements, and wherein:

[0021] Figure 1 It is a schematic diagram of an embodiment of a crawler tractor frame of the utility model;

[0022] Figure 2 It is a schematic diagram of an embodiment of a front frame of a crawler tractor frame of the utility model;

[0023] Figure 3 It is a schematic diagram of an embodiment of a rear frame of a crawler tractor frame of the utility model;

[0024] Figure 4 It is a schematic diagram of an embodiment of a clamp assembly of a crawler tractor frame of the utility model;

[0025] Figure 5 It is an exploded schematic diagram of an embodiment of a clamp assembly of a crawler tractor frame of the utility model;

[0026] Figure 6 yes Figure 3 A magnified view of part A;

[0027] Figure 7 It is a partial schematic diagram of an embodiment of a rear frame of a crawler tractor frame of the utility model.

[0028] Reference numerals:

[0029] 1. Front frame; 11. Front support plate; 12. First cross beam; 13. First longitudinal beam; 14. First fixing seat; 15. Second fixing seat; 2. Rear frame; 21. Second cross beam; 22. Second longitudinal beam; 23. Limiting plate; 3. Hoop assembly; 31. U-shaped screw; 32. Pad; 33. Pressure plate; 34. Anti-loosening lock

[0030] Tightening nut; 35, groove; 36, through hole; 4, mounting assembly; 41, first mounting seat; 42, first mounting groove; 43, fixing hole; 44, second mounting seat; 45, second mounting groove; 46, mounting hole. DETAILED DESCRIPTION

[0031] In order to be able to understand the features and technical contents of the embodiments of the utility model in more detail, the implementation of the embodiments of the utility model is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the utility model. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0032] The terms "first", "second", etc. in the specification and claims of the embodiments of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the utility model described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0033] In the embodiments of the present utility model, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present utility model and its embodiments, and are not intended to limit the indicated devices, elements or components to have specific directions, or to be constructed and operated in specific directions. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0034] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to specific circumstances.

[0035] Unless otherwise specified, the term "plurality" means two or more and "plurality" means two or more.

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0037] like Figure 1 , Figure 2 As shown, the utility model discloses a crawler tractor frame, which includes a front frame 1, a rear frame 2 and a plurality of clamp assemblies 3. The front frame 1 includes a front support plate 11, a first cross beam 12 and two first longitudinal beams 13, and the two first longitudinal beams 13 are both arranged between the front support plate 11 and the first cross beam 12. The two first longitudinal beams 13 are arranged parallel to each other. One end of the two first longitudinal beams 13 is fixedly connected to the two ends of the first cross beam 12, and the other ends of the two first longitudinal beams 13 are fixedly connected to the two sides of the front support plate 11. The front frame 1 also includes two first fixing seats 14 and two second fixing seats 15, and the two first fixing seats 14 are respectively arranged on the two first longitudinal beams 13, and the first fixing seats 14 are located near the front support plate 11. The two second fixing seats 15 are respectively arranged on the two first longitudinal beams 13, and the second fixing seats 15 are located at the connection between the first longitudinal beam 13 and the first cross beam 12. The front support plate 11 is used to install and fix the radiator of the tractor, and the engine of the tractor is installed and fixed by the cooperation of the first fixing seat 14 and the second fixing seat 15.

[0038] like Figures 1 to 3As shown, the rear frame 2 includes a plurality of cross beams, a second cross beam 21 and two second longitudinal beams 22. The second cross beam 21 and the plurality of cross beams are arranged between the two second longitudinal beams 22. The two second longitudinal beams 22 are arranged parallel to each other. The second cross beam 21 and the plurality of cross beams are arranged in sequence along the length direction of the second longitudinal beam 22, and the second cross beam 21 is located between two adjacent cross beams. The rear frame 2 also includes a plurality of limit plates 23, which are divided into two parts and are respectively arranged on the two second longitudinal beams 22, and the two parts of the limit plates 23 are symmetrically arranged. When the front frame 1 is arranged on the rear frame 2, one limit plate 23 is located between the front bracket and the first fixing seat 14, and is close to the position of the front bracket. The other limit plate 23 is located between the first fixing seat 14 and the second fixing seat 15. The height of the limiting plate 23 is higher than that of the first longitudinal beam 13 . The limiting plate 23 arranged in this way facilitates the cooperation with the clamp assembly 3 to detachably connect the front frame 1 and the rear frame 2 .

[0039] Alternatively, if Figure 4 , Figure 5 As shown, the clamp assembly 3 includes a U-shaped screw 31, a pad 32, a pressure plate 33, and an anti-loosening locking nut 34. Threads are constructed at both ends of a metal rod, and the threads are adapted to the anti-loosening locking nut 34, and the metal rod is bent into a U shape to form a U-shaped screw 31. The pad 32 is in the shape of a long strip, and a groove 35 is constructed on one side thereof. The pad 32 is arranged in the middle position of the U-shaped screw 31, and the U-shaped screw 31 is located in the groove 35 of the pad 32. Two through holes 36 are constructed on the pressure plate 33, and the two through holes 36 can be passed through at both ends of the U-shaped screw 31, and then the anti-loosening locking nuts 34 are arranged at both ends of the U-shaped screw 31.

[0040] Specifically, Figures 1 to 5 As shown, the front frame 1 is arranged above the rear frame 2, and the front frame 1 is detachably connected to the rear frame 2 through the clamp assembly 3. The plurality of clamp assemblies 3 are divided into two parts, one part of the clamp assembly 3 is arranged on the first longitudinal beam 13 and the second longitudinal beam 22, and the other part of the clamp assembly 3 is respectively arranged on the first longitudinal beam 13 and the second longitudinal beam 22 on both sides of the rear frame 2. The clamp assembly 3 is arranged on the first longitudinal beam 13 and the second longitudinal beam 22 on one side of the rear frame 2 as an example for introduction. The U-shaped screw 31 is sleeved on the first longitudinal beam 13 and the second longitudinal beam 22, and the U-shaped screw 31 is located in the groove 35 of the pad 32, and the pad 32 is arranged between the second longitudinal beam 22 and the U-shaped screw 31. The pressure plate 33 is arranged at both ends of the U-shaped screw 31, and finally the anti-loosening locking nut 34 is arranged at both ends of the U-shaped screw 31. This part of the clamp assembly 3 is located between two adjacent limiting plates 23 , and this part of the clamp assembly 3 is also located between the front support plate 11 and the first fixing seat 14 of the front frame 1 .

[0041] Another part of the clamp assembly 3 is arranged on the first cross beam 12 and the second cross beam 21. This part of the clamp assembly 3 is arranged in sequence along the length direction of the first cross beam 12. Therefore, the clamp assembly 3 is arranged on the first cross beam 12 and the second cross beam 21 as an example for introduction. The U-shaped screw 31 is sleeved on the first cross beam 12 and the second cross beam 21. The U-shaped screw 31 is located in the groove 35 of the pad 32, and the pad 32 is arranged between the second cross beam 21 and the U-shaped screw 31. The pressure plate 33 is arranged at both ends of the U-shaped screw 31, and finally the anti-loosening locking nut 34 is arranged at both ends of the U-shaped screw 31. By arranging the pad 32 on the U-shaped screw 31, the contact mode between the U-shaped screw 31 and the rear frame 2 is changed from linear contact to surface contact, which increases the contact area between the two and prevents the clamp assembly from sliding horizontally due to external vibration.

[0042] Alternatively, if Figure 1 , Figure 3 , Figure 6 , Figure 7As shown, the crawler tractor frame also includes a mounting assembly 4 obliquely arranged on the rear frame 2. The mounting assembly 4 includes a first mounting seat 41 and a second mounting seat 44. The first mounting seat 41 and the second mounting seat 44 are symmetrical structures. The first mounting seat 41 is described as an example. The first mounting seat 41 is plate-shaped, and a first mounting groove 42 with a semicircular cross-section is constructed in the middle thereof, and a plurality of fixing holes 43 are constructed at both ends thereof. Similarly, the second mounting seat 44 is constructed with a second mounting groove 45, and a plurality of fixing holes 43 are constructed at both ends thereof. The second mounting seat 44 is detachably connected to the first mounting seat 41 by bolts. The mounting assembly 4 is arranged at one end of the rear frame 2 away from the front frame 1. There are two groups of mounting assemblies 4, and the two groups of mounting assemblies 4 are respectively arranged on two second longitudinal beams 22. Taking one group of mounting assemblies 4 as an example, a mounting bracket is arranged on one second longitudinal beam 22 of the rear frame 2, and the end of the mounting bracket away from the second longitudinal beam 22 is fixedly connected to the middle of the first mounting seat 41. There is an angle α between the plane where the notch of the first mounting groove 42 is located and the top surface of the second longitudinal beam 22, and the angle α is 45°, which can be regarded as the plane where the notch of the first mounting groove 42 is located and the top surface of the rear frame 2 is set at 45°. The second mounting seat 44 is set on the first mounting seat 41, and the second mounting groove 45 of the second mounting seat 44 and the first mounting groove 42 of the first mounting seat 41 jointly form a mounting hole 46 for mounting the transmission housing. Bolts are sequentially penetrated through the fixing holes 43 of the second mounting seat 44 and the fixing holes 43 of the first mounting seat 41 to complete the detachable connection between the first mounting seat 41 and the second mounting seat 44. The gearbox of the tractor is connected to the final transmission housing of the tractor, and the final transmission housing is installed on the rear frame 2 in an axle-holding installation manner through the mounting assembly 4, and is tilted on the rear frame 2 at an angle of 45° through the mounting assembly 4. When the tractor gearbox is disassembled in the later stage, it does not need to be lifted upward, but only needs to be moved horizontally backward, which saves trouble and labor, and also solves the problem that the existing tractor gearbox is difficult to lift upward when disassembled. The engine of the tractor located on the front frame 1 is detachably connected to the gearbox of the tractor located on the rear frame 2 .

[0043] The utility model also discloses a crawler tractor, comprising the crawler tractor frame as described in any one of the above embodiments.

[0044] The above description and the accompanying drawings fully illustrate the embodiments of the utility model so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the utility model are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. A crawler tractor frame, characterized in that: include: A front frame (1) comprises a front support plate (11), a first cross beam (12) and a first longitudinal beam (13), wherein the first longitudinal beam (13) is arranged between the front support plate (11) and the first cross beam (12); The rear frame (2) comprises a second cross beam (21) and a second longitudinal beam (22) connected to the second cross beam (21), wherein a plurality of limiting plates (23) are provided on the second longitudinal beam (22); A plurality of hoop assemblies (3), a portion of the hoop assemblies (3) being arranged on the first longitudinal beam (13) and the second longitudinal beam (22), the portion of the hoop assemblies (3) being located between two adjacent limit plates (23), and simultaneously being located between the front support plate (11) and the first fixing seat (14) of the front frame (1); another portion of the hoop assemblies (3) being arranged on the first cross beam (12) and the second cross beam (21).

2. The crawler tractor frame according to claim 1, characterized in that: The clamp assembly (3) comprises: A U-shaped screw (31) sleeved on the first longitudinal beam (13) and the second longitudinal beam (22); a backing plate (32) disposed between the first longitudinal beam (13) and the U-shaped screw (31), or disposed between the second longitudinal beam (22) and the U-shaped screw (31); A pressing plate (33) is provided at both ends of the U-shaped screw (31); Anti-loosening locking nuts (34) are arranged at both ends of the U-shaped screw rod (31).

3. The crawler tractor frame according to claim 1, characterized in that: The clamp assembly (3) comprises: A U-shaped screw (31) sleeved on the first crossbeam (12) and the second crossbeam (21); a backing plate (32) disposed between the first crossbeam (12) and the U-shaped screw (31), or disposed between the second crossbeam (21) and the U-shaped screw (31); A pressing plate (33) is provided at both ends of the U-shaped screw (31); Anti-loosening locking nuts (34) are arranged at both ends of the U-shaped screw rod (31).

4. The crawler tractor frame according to any one of claims 1 to 3, characterized in that: Also includes: The mounting assembly (4) is obliquely arranged on the rear frame (2).

5. The crawler tractor frame according to claim 4, characterized in that: The installation component (4) comprises: A first mounting seat (41) is provided with a first mounting groove (42); the first mounting seat (41) is arranged on the rear frame (2); A second mounting seat (44) is provided with a second mounting groove (45); the second mounting seat (44) is detachably connected to the first mounting seat (41); When the second mounting seat (44) is arranged on the first mounting seat (41), the first mounting groove (42) and the second mounting groove (45) together form a mounting hole (46) for mounting the transmission housing.

6. The crawler tractor frame according to claim 5, characterized in that: The plane where the notch of the first installation slot (42) is located is arranged at 45 degrees to the top surface of the rear frame (2).

7. The crawler tractor frame according to claim 1, characterized in that: The front frame (1) is arranged above the rear frame (2).

8. The crawler tractor frame according to claim 1, characterized in that: There are a plurality of the first longitudinal beams (13), and the plurality of the first longitudinal beams (13) are arranged parallel to each other.

9. The crawler tractor frame according to claim 1, characterized in that: There are a plurality of the second longitudinal beams (22), and the plurality of the second longitudinal beams (22) are arranged parallel to each other.

10. A crawler tractor, characterized in that: include: A crawler tractor frame as claimed in any one of claims 1 to 9.

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