Tractor

Abstract

The utility model provides a tractor. Comprising a portal frame, a hood and a pivot, the portal frame is located on the front side of a tractor cab, the hood is arranged on the front side of the portal frame, the hood comprises a shaft sleeve which is arranged at the tail end of the hood and stretches across a preset distance in the left-right direction of the hood, the pivot is arranged on the portal frame, and the pivot is arranged in the shaft sleeve in a sleeved mode. And the hood is rotationally mounted on the portal frame. The pivot sequentially penetrates through the first mounting seat, the shaft sleeve and the second mounting seat, the hood is rotatably mounted on the portal frame, the mounting concentricity of the hood is guaranteed, the bushing is mounted in the pivot, the whole rotation is smoother, the clamping groove parts are arranged at the two ends of the pivot, the clamping spring is used for limiting, the mounting is convenient, and the precision is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment technical field especially a tractor. BACKGROUND

[0002] In prior art, the hood and the tractor body are generally connected by two pivots, which is not easy to guarantee the concentricity of the two pivots. In actual operation, the bolt is usually used as the pivot, and the nut is used to fix and limit the left and right sides. However, the user can only apply force to one side of the hood to close the hood, which will cause the hood to tilt and shake unevenly, increasing the risk of nut loosening. Therefore, it is necessary to provide a tractor to overcome the above-mentioned defects. SUMMARY

[0003] The utility model aims at providing a tractor.

[0004] According to the utility model, a tractor is provided, which comprises a portal frame, a hood, a pivot and a connecting piece. The portal frame is located on the front side of the tractor cab. The hood is arranged on the front side of the portal frame and comprises a shaft sleeve arranged at the tail end of the hood and spanning a predetermined distance in the left-right direction of the hood. The pivot is arranged on the portal frame, and the pivot sleeve is arranged in the shaft sleeve to rotate the hood on the portal frame.

[0005] Preferably, the portal frame is provided with a first mounting seat and a second mounting seat at a predetermined distance, and the pivot is arranged between the first mounting seat and the second mounting seat.

[0006] Preferably, the pivot is provided with a mounting part at both ends, and the mounting part is provided with a flat groove in the circumferential direction.

[0007] Preferably, the first mounting seat is provided with a mounting hole, and the mounting hole comprises a first through hole allowing the mounting part to pass in only a predetermined direction and a second through hole located below the first through hole and communicating with the first through hole.

[0008] Preferably, the width of the first through hole is greater than the outer diameter of the radial direction of the flat groove of the mounting part and less than the outer diameter of the radial direction of the non-flat groove of the mounting part.

[0009] Preferably, the mounting part and the first mounting seat and / or the second mounting seat are connected by a connecting piece to limit the rotation of the pivot relative to the first mounting seat and the second mounting seat.

[0010] Preferably, the connecting piece comprises a body part, a flat hole arranged at one end of the body part and matched with the outer contour of the mounting part, and a bolt hole arranged at the other end of the body part and fixed with the mounting part.

[0011] Preferably, the shaft sleeve is provided with an annular groove at each end, and a bushing is arranged between the annular groove and the pivot shaft.

[0012] Preferably, the pivot shaft comprises a shaft body, two clamping groove portions arranged on the shaft body and corresponding to the two ends of the shaft sleeve respectively, and the clamping groove portions are provided with clamping springs to limit the position of the bushing relative to the shaft sleeve and the position of the shaft sleeve relative to the pivot shaft.

[0013] Preferably, the bonnet comprises a framework, side cover plates welded on both sides of the framework, a top plate arranged above the framework and fixed to the side cover plates by bolts, and a front wall arranged in front of the side cover plates and connected to the side cover plates by bolts.

[0014] Compared with the prior art, the tractor provided by the utility model has the following beneficial effects: the utility model discloses a pivot shaft which sequentially penetrates through a first mounting seat, a shaft sleeve and a second mounting seat, and the bonnet is rotatably mounted on the portal frame, the concentricity of the bonnet installation is guaranteed, a bushing is arranged in the pivot shaft, the whole rotation is smoother, clamping groove portions are arranged at both ends of the pivot shaft, and clamping springs are used for limiting the position, so that the installation is convenient and the precision is higher. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in detail in combination with the drawings and specific embodiments:

[0016] Figure 1 It is a structure schematic view of bonnet assembly in the utility model;

[0017] Figure 2 It is a side view of bonnet assembly in the utility model;

[0018] Figure 3 It is a cross section schematic view of bonnet assembly in the utility model;

[0019] Figure 4 It is a cross section schematic view of the mounting structure of pivot shaft in the utility model;

[0020] Figure 5 It is an explosion structure schematic view of the mounting structure of pivot shaft in the utility model.

[0021] Mark explanation: 1, portal frame; 2, bonnet; 21, framework; 22, top plate; 23, side cover plate; 24, front wall; 25, shaft sleeve; 251, annular groove; 3, mounting assembly; 31, first mounting seat; 32, second mounting seat; 311, mounting hole; 311a, first through hole; 311b, second through hole; 4, pivot shaft; 41, shaft body; 42, bushing; 43, clamping groove portion; 44, clamping spring; 45, mounting portion; 451, flat slot; 5, connecting piece; 51, body portion; 52, flat hole; 53, bolt hole. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0023] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0024] It should be further understood that the term "and / or" used in the specification and claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0025] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will describe the specific embodiments of the present application with reference to the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0028] Referring to Figures 1 to 5 The present embodiment discloses a tractor, and particularly relates to a tractor hood mounting structure. The tractor comprises a cab, a portal frame 1, a hood 2, a water tank, a mounting assembly 3 and a pivot 4.

[0029] Referring to Figure 1The gantry 1 is arranged at the front side of the tractor cab, and the gantry 1 is fixedly connected with the cab front panel. An engine is arranged in front of the gantry 1, and the engine is used to realize the whole tractor output. A front bracket is arranged in front of the engine, and a water tank is arranged on the front bracket to cool the engine.

[0030] Referring to Figure 1 , Figure 2 The hood 2 is arranged above the engine and is used to cover the engine, the water tank and other related accessories. The hood 2 comprises a framework 21, a top plate 22 arranged on the framework 21, side cover plates 23 arranged below the top plate 22 and at both sides of the framework 21, a front panel 24 arranged below the top plate 22 and at both sides of the framework 21, and a shaft sleeve 25 arranged at the rear end of the framework 21.

[0031] It is worth mentioning that the hood 2 in the embodiment adopts a split structure. In addition to the welding process connection between the side cover plates 23 and the framework 21, the top plate 22, the front panel 24 and the side cover plates 23 are all fixedly connected through bolts, which avoids the problem that the appearance of the hood 2 is affected by the welding process between the top plate 22 and the side cover plates 23 in the traditional way, and does not need the batch ash process, thereby reducing the manufacturing cost of the hood 2.

[0032] Referring to Figure 3 , Figure 4 The mounting assembly 3 comprises first mounting seats 31 and second mounting seats 32 which are identical in structure. The first mounting seats 31 and the second mounting seats 32 are both arranged on the gantry 1 and are apart from each other by a predetermined distance. In order to obtain better coaxiality, the first mounting seats 31 and the second mounting seats 32 are preferably arranged at both ends of the gantry 1 to obtain a greater predetermined distance. At the same time, a certain operation space should be reserved on both sides of the first mounting seats 31 and the second mounting seats 32 to facilitate the installation of the pivot 4.

[0033] Referring to Figure 5 The pivot 4 is arranged on the gantry 4, and the pivot 4 is sleeved in the shaft sleeve 25 to rotatably mount the hood 2 on the gantry 4. Specifically, the pivot 4 comprises a shaft body 41 and two clamping groove portions 43 arranged on the shaft body 41 and corresponding to both ends of the shaft sleeve 25 respectively. The pivot 4 sequentially penetrates through the first mounting seat 31, the shaft sleeve 25 and the second mounting seat 32 to rotatably mount the hood 2 on the gantry 1. The shaft sleeve 25 is provided with an annular groove 251 at each end. A bushing 42 is arranged between the annular groove 251 and the pivot 4, and a clamping spring 44 is arranged on the clamping groove portion 43 to limit the position of the bushing 42 relative to the shaft sleeve 25 and the position of the shaft sleeve 25 relative to the pivot 4.

[0034] Referring to Figure 4 , Figure 5The mounting portion 45 is provided with a flat groove 451 in the circumferential direction, and two flat grooves 451 are symmetrically arranged on the mounting portion 45 in the embodiment. That is to say, the outer diameter of the mounting portion 45 in the radial direction where the flat groove 451 is located is smaller than the outer diameter of the mounting portion 45 in the radial direction where the non-flat groove 451 is located. Correspondingly, the first mounting seat 31 is provided with a mounting hole 311, which comprises a first through hole 311a allowing the mounting portion 45 to pass in only one fixed direction and a second through hole 311b located below the first through hole 311a and adapted to accommodate the mounting portion 45, and the width of the first through hole 311a is greater than the outer diameter of the mounting portion 45 in the radial direction where the flat groove 451 is located and smaller than the outer diameter of the mounting portion 45 in the radial direction where the non-flat groove 451 is located, the second through hole 311b is a circular hole, and the outer diameter of the second through hole 311b is equal to or slightly greater than the outer diameter of the mounting portion 45 in the radial direction where the flat groove 451 is located.

[0035] Referring to Figure 4 , Figure 5 The mounting portion 45 and the first mounting seat 31 and / or the second mounting seat 32 are connected by a connecting piece 5, which limits the rotation of the pivot 4 relative to the first mounting seat 31 and / or the second mounting seat 32. The connecting piece 5 comprises a body portion 51, a flat hole 52 arranged at one end of the body portion 51 and matched with the outer contour of the mounting portion 45, and a bolt hole 53 arranged at the other end of the body portion 51 and fixed with the mounting portion 45.

[0036] During installation, the pivot 4 is rotated to the horizontal direction in the radial direction where the flat groove 451 is located, the width of the first through hole 311a is greater than the outer diameter of the mounting portion 45 in the radial direction where the flat groove 451 is located, the pivot 4 can pass through the first through hole 311a and be inserted into the second through hole 311b, and then the pivot 4 is rotated to the vertical direction in the radial direction where the flat groove 451 is located. At this time, the width of the first through hole 311a is smaller than the outer diameter of the mounting portion 45 in the radial direction where the non-flat groove 451 is located, so as to avoid the pivot 4 from being pulled out, then the flat hole 52 of the connecting portion is sleeved on the mounting portion 45, and the connecting piece 5 is fixed on the first mounting seat 31 and / or the second mounting seat 32 by a bolt, so as to avoid the relative rotation of the pivot 4 and realize the fixation of the pivot 4.

[0037] In addition, a rear strip plate is arranged between the gantry 1 and the tractor cab, and the rear strip plate of the hood 2 covers the periphery of the gantry 1, which is used to compensate the gap between the body of the hood 2 and the front wall of the cab and also plays a role of hiding ugliness.

[0038] It is obvious for those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the utility model without departing from the spirit and scope of the utility model. Therefore, it is intended to cover the modifications and variations of the utility model falling within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A tractor, characterized in that The tractor comprises: a portal frame located at the front side of the tractor cabin; a hood provided at the front side of the portal frame, the hood comprising a shaft sleeve provided at the tail end of the hood and spanning a predetermined distance in the left-right direction of the hood; a pivot shaft provided on the portal frame, the pivot shaft sleeve being provided in the shaft sleeve, and the hood being pivotally mounted on the portal frame.

2. The tractor of claim 1, wherein, The portal frame is provided with a first mounting seat and a second mounting seat at a predetermined distance apart, and the pivot shaft is provided between the first mounting seat and the second mounting seat.

3. The tractor of claim 2, wherein, The pivot shaft is provided with a mounting portion at each end, and the mounting portion is provided with a flat groove in the circumferential direction.

4. The tractor of claim 3, wherein, The first mounting seat is provided with a mounting hole, the mounting hole comprising a first through hole allowing the mounting portion to pass in only a predetermined direction, and a second through hole located below the first through hole and communicating with the first through hole.

5. The tractor of claim 4, wherein, The width of the first through hole is greater than the outer diameter of the radial direction of the flat groove of the mounting portion and less than the outer diameter of the radial direction of the non-flat groove of the mounting portion.

6. The tractor of claim 3, wherein, The mounting portion is connected to the first mounting seat and / or the second mounting seat by a connecting piece, which limits the rotation of the pivot shaft relative to the first mounting seat and the second mounting seat.

7. The tractor of claim 6, wherein, The connecting piece comprises a body portion, a flat hole provided at one end of the body portion and matched with the outer contour of the mounting portion, and a bolt hole provided at the other end of the body portion and fixed to the mounting portion.

8. The tractor of claim 1, wherein, The shaft sleeve is provided with an annular groove at each end, and a bushing is provided between the annular groove and the pivot shaft.

9. The tractor of claim 8, wherein, The pivot shaft comprises a shaft body, two clamping groove portions provided on the shaft body and corresponding to the two ends of the shaft sleeve, and the clamping groove portions are each provided with a clamping spring, which limits the position of the bushing relative to the shaft sleeve and the position of the shaft sleeve relative to the pivot shaft.

10. The tractor of claim 1, wherein, The hood comprises a framework, side cover plates welded on both sides of the framework, a top plate provided above the framework and fixed to the side cover plates by bolts, and a front wall provided at the front side of the side cover plates and connected to the side cover plates by bolts.

Images