CN219154574U - Front axle locking mechanism for tractor - Google Patents

Abstract

The utility model relates to a front axle locking mechanism for a tractor, which belongs to the technical field of hilly and mountain tractors, and comprises a hilly and mountain tractor frame, a leaf spring support, a leaf spring and a front axle tube, wherein two ends of the leaf spring are respectively connected to the bottom surface of one side beam of the hilly and mountain tractor frame through the leaf spring support, and the front axle tube is arranged in the middle of the leaf spring and further comprises: and the upper end of the locking structure is connected to the bottom surface of the hilly and mountain tractor frame, and the lower end of the locking structure is connected to the leaf spring. The locking structure is arranged, and the locking piece is a rigid piece, so that the front axle tube is in locking connection with the frame of the hilly and mountain tractor, the requirement that the axle is in rigid locking connection with the vehicle body when the hilly and mountain tractor is in field operation is met, and the effect that the hilly and mountain tractor is stable and reliable when the hilly and mountain tractor is in field operation is achieved.

Description

Front axle locking mechanism for tractor

Technical Field

The utility model relates to the technical field of hilly and mountain tractors, in particular to a front axle locking mechanism for a tractor.

Background

Hilly and mountain areas are important production bases of food and special agricultural products in China, the cultivation area of the hilly and mountain areas accounts for 1/3 of the whole country, and the population of farmers is nearly 3 hundred million. Aiming at special topography of hilly and mountain areas, the tractor for hilly and mountain areas is required to have the functions of elastic connection of an axle and a vehicle body during road transportation and rigid connection of the axle and the vehicle body during field operation, so that the tractor achieves the effects of buffering and vibration reduction during road transportation operation and is stable and reliable during field operation.

At present, no structure suitable for locking the front axle of the tractor exists. The automobile industry has a mode of locking a plate spring by adopting an oil cylinder, for example, as described in a Chinese patent with publication number CN104477831A, namely, a locking mechanism for a plate spring of a front axle of an overhead working truck, wherein two ends of the oil cylinder are respectively connected with an I-shaped beam of the plate spring and a girder of a frame, and the I-shaped beam arranged on the plate spring is locked by a locking vertical plate so as to lock the plate spring; in addition, there is a limiting mode of locking the leaf spring by a mechanical structure, for example, as described in "rigid locking mechanism of vehicle suspension system" of chinese patent publication No. CN201659860U, a telescopic device is mounted on a frame girder, and a push rod penetrates into a joint hole of a supporting seat fixed on an axle, so as to realize mechanical limiting. For hilly and mountain tractors, the front axle locking mode by using the oil cylinder locking mode requires adding related electro-hydraulic elements, which can certainly increase the cost and has complex mechanism; and because the hilly and mountain land tractors are special in working condition, the impact vibration is large in working, and the common push rod type mechanical limiting and locking mode cannot meet the reliability requirement.

In summary, we provide a front axle locking mechanism for a tractor.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a front axle lock mechanism for a tractor.

The utility model realizes the above purpose through the following technical scheme:

the utility model provides a front axle locking mechanical system for tractor, includes hilly mountain region tractor frame, leaf spring support, leaf spring and front axle pipe, leaf spring both ends pass through one respectively the leaf spring support connect in hilly mountain region tractor frame one side roof beam bottom surface, the front axle pipe is located leaf spring middle part, its characterized in that still includes:

the locking structure is characterized in that the upper end of the locking structure is connected to the bottom surface of the hilly and mountain tractor frame, the lower end of the locking structure is connected to the leaf spring, so that the hilly and mountain tractor frame and the leaf spring are correspondingly connected, and the hilly and mountain tractor frame and the front axle tube are correspondingly connected.

Preferably, the plate spring is provided with two symmetrical U-shaped bolts at the front and rear sides of the front axle tube so as to realize the corresponding and fixed connection of the front axle tube and the plate spring.

Preferably, the locking structure includes:

the locking mounting plates are provided with through holes sleeved on the U-shaped bolts at positions corresponding to the two U-shaped bolts, and fastening nuts are arranged at positions of the U-shaped bolts above and below the through holes so as to realize horizontal fixation of the locking mounting plates;

the locking piece is detachably connected between the hilly mountain tractor frame and the locking mounting plate.

Preferably, the locking member is an elastic member.

Preferably, the position of the bottom surface of the hilly and mountain tractor frame, which is positioned in the middle of the top surface of the locking mounting plate, is provided with a first mounting plate, and the locking piece is detachably connected to the bottom surface of the first mounting plate.

Preferably, the locking member is a rigid member, and the thickness of the locking member is smaller than the distance between the bottom surface of the side beam of the hilly and mountain tractor frame and the top surface of the locking mounting plate when the hilly and mountain tractor is under the maximum use mass.

Preferably, the bottom surface of the side beam of the hilly and mountain tractor frame is provided with a second mounting plate corresponding to the front end and the rear end of the locking piece, and the front end and the rear end of the locking piece are detachably connected between the second mounting plate and the locking mounting plate.

Preferably, each end portion of the second mounting plate is provided with a vertical threaded hole, the positions of the front end portion and the rear end portion of the locking piece, which correspond to the threaded holes, are provided with unthreaded holes which are coaxial and matched with the threaded holes, and the unthreaded holes of the locking mounting plate and the unthreaded holes of the locking piece are sequentially penetrated through the threaded holes of the corresponding second mounting plate by bolts, so that the rigid connection of the locking mounting plate, the locking piece and the second mounting plate is realized.

Preferably, the ends of the two second mounting plates, which are correspondingly connected with the locking pieces, are respectively positioned at two sides of the bottom surface of the side beam of the hilly and mountain tractor frame.

Preferably, a space for the locking member to penetrate is provided between the front end portion of the leaf spring and the inner top surface of the corresponding leaf spring bracket.

The beneficial effects are that:

1. due to the arrangement of the locking structure and the fact that the locking piece is a rigid piece, the front axle tube and the frame of the hilly and mountain tractor can be locked and connected, the requirement that an axle and a vehicle body are rigidly locked and connected when the hilly and mountain tractor works in fields is met, and the effects of stability and reliability when the hilly and mountain tractor works in fields are achieved;

2. due to the arrangement of the locking structure and the fact that the locking piece is an elastic piece, the front axle tube and the frame of the hilly and mountain tractor can be elastically locked and connected, the requirement that an axle and a vehicle body are elastically locked and connected when the hilly and mountain tractor is in highway transportation is met, and the effects of buffering and vibration reduction when the hilly and mountain tractor is in highway transportation operation are achieved;

3. the locking piece is convenient to assemble and disassemble, and the function of switching between the two states of rigid locking connection and elastic locking connection of the front axle and the frame can be realized.

Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a top view of the present utility model;

FIG. 2 is a schematic view of the structure of the first state of the utility model;

FIG. 3 is a schematic view of the structure of the second state of the utility model;

fig. 4 is a schematic structural view of the locking member of the present utility model as a rigid member.

The reference numerals are explained as follows:

1. hilly mountain tractor frame; 2. a leaf spring support; 3. a leaf spring; 4. a front axle tube; 5. a locking structure; 501. a locking mounting plate; 502. a locking member; 6. u-shaped bolts; 7. a first mounting plate; 8. and a second mounting plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the present utility model, unless expressly stated or limited otherwise, a first feature may include first and second features directly contacting each other, either above or below a second feature, or through additional features contacting each other, rather than directly contacting each other. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.

As shown in fig. 1-4, a front axle locking mechanism for a tractor comprises a hilly and mountain tractor frame 1, a plate spring bracket 2, a plate spring 3, a front axle tube 4 and a locking structure 5, wherein the front end and the rear end of the plate spring 3 are connected to the bottom surface of one side beam of the hilly and mountain tractor frame 1 through one plate spring bracket 2, and the connection relation between the front part of the plate spring 3 and the plate spring bracket 2 is not described in detail in the prior art; the front axle tube 4 is installed at leaf spring 3 middle part through two U type bolts 6, wherein two U type bolts 6 are located front axle tube 4 front and back both sides respectively, locking structure 5 lower extreme corresponds to install in U type bolt 6 top, the upper end corresponds to install in hilly mountain tractor frame 1 bottom surface, in order to realize the corresponding connection between U type bolt 6 and hilly mountain tractor frame 1, because U type bolt 6 corresponds the rigid coupling with leaf spring 3, front axle tube 4 corresponds the rigid coupling with leaf spring 3, therefore the corresponding connection between hilly mountain tractor frame 1 and front axle tube 4 has been realized, and then the function of rigid locking connection between axle and the automobile body when hilly mountain tractor in field operation can be guaranteed, reach stable and reliable's effect when field operation.

Specifically, the locking structure 5 includes a locking mounting plate 501 and a locking member 502, where the locking mounting plate 501 is provided with a through hole corresponding to the upper portion of the U-shaped bolt 6, so that the locking mounting plate 501 is sleeved on the U-shaped bolt 6, and then a fastening nut is screwed at the position of the U-shaped bolt 6 located above and below the locking mounting plate 501, so as to fix the locking mounting plate 501 on the U-shaped bolt 6 horizontally.

In some embodiments, as shown in fig. 2, the locking member 502 is an elastic member, such as made of rubber material, specifically, the locking member 502 is cylindrical, and the middle of the top has a screw; the first mounting plate 7 is welded at the position of the bottom surface of the hilly and mountain tractor frame 1 corresponding to the middle part of the locking mounting plate 501, a screw hole matched with the screw rod is formed in the middle part of the first mounting plate 7, and the screw rod in the locking piece 502 is screwed into the screw hole so as to realize the installation of the locking piece 502.

Further, the bottom surface of the locking member 502 has a certain clearance from the top surface of the locking mounting plate 501.

The locking piece 502 has certain elasticity, so that the front axle tube 4 and the hilly and mountain tractor frame 1 can be elastically locked and connected according to the characteristics, and the axle and the vehicle body can be elastically locked and connected when the hilly and mountain tractor is in road transportation, so that the effects of buffering and vibration reduction of the hilly and mountain tractor in road transportation operation can be achieved.

In some embodiments, as shown in fig. 3-4, the locking piece 502 is a rigid piece that is disposed front and back, specifically, the front and back ends of the locking mounting plate 501 are provided with light holes, meanwhile, the front and back ends of the locking piece 502 are provided with light holes that can be coaxial with the light holes of the locking mounting plate 501, then, a second mounting plate 8 with a threaded hole is welded at a position of the bottom surface of the hillside tractor frame 1 corresponding to the end of the locking mounting plate 501, the end of the second mounting plate 8 is provided with a threaded hole coaxial with the corresponding light hole, then, the light holes of the locking mounting plate 501, the light holes of the locking piece 502 and the threaded hole of the second mounting plate 8 are correspondingly connected by bolts, and then, the locking mounting plate 501, the locking piece 502 and the second mounting plate 8 are correspondingly connected, according to the above characteristics, the rigid locking connection between the front axle pipe 4 and the hillside tractor frame 1 is realized, and the rigid locking connection between the axle and the vehicle body can be ensured when the hillside tractor has field operation, and the stable and reliable effect of the hillside tractor can be ensured when the field operation.

According to the requirement, the threaded holes of the two second mounting plates 8 are respectively positioned at two sides of the bottom surface of the side beam of the hilly and mountain tractor frame 1, so that the locking mounting plates 501 and the locking pieces 502 are obliquely arranged along the front-back direction, the middle part of the top surface of the locking pieces 502 is positioned at the bottom surface of the side beam of the hilly and mountain tractor frame 1, and the middle part of the top surface of the locking pieces 502 is attached to the bottom surface of the side beam of the hilly and mountain tractor frame 1; while the operator can observe above whether the light hole in the locking member 502 has been coaxial with the threaded hole of the second mounting plate 8.

Further, a protruding part attached to the bottom surface of the side beam of the hilly and mountain tractor frame 1 can be arranged in the middle of the top surface of the locking piece 502, and the height of the protruding part is the same as the thickness of the second mounting plate 8; like this after locking piece 502 is connected with second mounting panel 8, can guarantee that locking piece 502 top surface tip and the laminating of second mounting panel 8 bottom surface, the bellying at locking piece 502 top surface middle part is laminated with hilly mountain tractor frame 1 bottom surface for locking piece 502 can better whole atress.

Further, the position of the bottom surface of the side beam of the hilly and mountain tractor frame 1 corresponding to the middle part of the top surface of the locking piece 502 is welded with a stress part with the same thickness as the second mounting plate 8, that is to say, the bottom surface of the stress part and the bottom surface of the second mounting plate 8 are positioned on the same horizontal plane, so that after the locking piece 502 is connected with the second mounting plate 8, the end part of the top surface of the locking piece 502 can be guaranteed to be attached to the bottom surface of the second mounting plate 8, the middle part of the top surface of the locking piece 502 is attached to the bottom surface of the stress part, and the locking piece 502 can be better stressed integrally;

the force receiving portion may be replaced by the first mounting plate 7 in the above-described embodiment, as needed.

Still further, the locking member 502 may include a top plate, a bottom plate, and a riser between the top plate and the bottom surface such that the locking member 502 is in an i-shaped configuration in cross-section;

furthermore, the side of the locking piece 502 is provided with a relief groove corresponding to the U-shaped bolt 6 and the position of the fastening nut on the U-shaped bolt 6.

Further, in order to facilitate the placement of the locking piece 502 above the locking mounting plate 501, the height of the inner cavity of the leaf spring support 2 corresponding to the front end of the leaf spring 3 may be increased, so that the locking piece 502 may pass through between the front end of the leaf spring 3 and the top surface of the inner cavity of the leaf spring support 2, that is, a space for the locking piece 502 to pass through is provided between the front end of the leaf spring 3 and the inner top surface of the corresponding leaf spring support 2.

According to the requirement, the locking piece 502 can be provided with a plane symmetrical structure or a center symmetrical structure, preferably, the locking piece 502 is provided with a center symmetrical structure, so that the front and back positions and the downward positions of the locking piece 502 are not needed to be distinguished when the locking piece 502 is installed, and the locking piece 502 is installed more trouble-free, that is, the front end of the locking piece 502 can be positioned at a position close to the front of a hilly and mountain tractor when installed, and can also be positioned at a position close to the rear of the hilly and mountain tractor; the top surface of the locking member 502 may be either upward or downward.

In some embodiments, the locking pieces 502 may have two locking pieces 502, one being the elastic piece in the above embodiment and the other being the rigid piece 502 in the above embodiment, it should be noted that when the hilly and mountain tractor is in the road transportation state, the rigid piece 502 needs to be removed, and when the hilly and mountain tractor is in the field operation state, the elastic piece 502 may be removed, or the rigid piece 502 may have a yielding to the elastic piece 502, where the elastic piece 502 does not need to be removed.

When the tractor is in a road transportation state, the screw rod for assembly on the locking piece 502 which is an elastic piece is arranged in the screw hole on the first mounting plate 7 to be fastened and connected, and a certain space is reserved between the bottom surface of the locking piece 502 which is an elastic piece and the top surface of the locking mounting plate 501. At the moment, the front axle tube 4 is elastically locked and connected with the frame 1 of the hilly and mountain tractor, so that the performance requirement of buffering and vibration reduction when the hilly and mountain tractor runs at a higher speed under the road transportation working condition is met;

when the hilly and mountain tractor is in a field operation state, the locking piece 502 which is an elastic piece is removed from the first mounting plate 7, the locking piece 502 which is a rigid piece is placed between the locking mounting plate 501 and the second mounting plate 8, the light hole on the locking piece 502 which is a rigid piece is coaxial with the light hole on the locking mounting plate 501, then the light hole on the locking mounting plate 501 and the light hole on the locking piece 502 which is a rigid piece are penetrated from bottom to top by bolts, and then the locking fastening connection is made with the locking on the second mounting plate 8. At the moment, the front axle tube 4 is rigidly locked and connected with the hilly and mountain tractor frame 1, so that the stable and reliable performance requirement of the hilly and mountain tractor under the field operation condition is met.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a front axle locking mechanical system for tractor, includes hilly mountain region tractor frame (1), leaf spring support (2), leaf spring (3) and front axle pipe (4), leaf spring (3) both ends respectively through one leaf spring support (2) connect in hilly mountain region tractor frame (1) one side roof beam bottom surface, front axle pipe (4) are located leaf spring (3) middle part, its characterized in that still includes:

the locking structure (5) is connected to the bottom surface of the hilly and mountain tractor frame (1) at the upper end, and the leaf spring (3) at the lower end, so that the hilly and mountain tractor frame (1) and the leaf spring (3) are correspondingly connected, and the hilly and mountain tractor frame (1) and the front axle tube (4) are correspondingly connected.

2. The front axle lock mechanism for a tractor as defined by claim 1 wherein: the plate springs (3) are arranged at the front side and the rear side of the front axle tube (4) and are symmetrically provided with two U-shaped bolts (6) so as to realize corresponding and fixedly connection of the front axle tube (4) and the plate springs (3).

3. The front axle lock mechanism for a tractor as claimed in claim 2, wherein: the locking structure (5) comprises:

the locking mounting plates (501) are provided with through holes sleeved on the U-shaped bolts (6) at positions corresponding to the two U-shaped bolts (6), and fastening nuts are arranged at positions, above and below the through holes, of the U-shaped bolts (6) so as to realize horizontal fixation of the locking mounting plates (501);

and the locking piece (502) is detachably connected between the hilly mountain tractor frame (1) and the locking mounting plate (501).

4. A front axle locking mechanism for a tractor as defined by claim 3 wherein: the locking member (502) is an elastic member.

5. The front axle lock mechanism for a tractor as defined by claim 4 wherein: the position of the bottom surface of the hilly and mountain tractor frame (1) at the middle part of the top surface of the locking mounting plate (501) is provided with a first mounting plate (7), and the locking piece (502) is detachably connected to the bottom surface of the first mounting plate (7).

6. A front axle locking mechanism for a tractor as defined by claim 3 wherein: the locking piece (502) is a rigid piece, and the thickness of the locking piece (502) is smaller than the distance between the bottom surface of the side beam of the hilly and mountain tractor frame (1) and the top surface of the locking mounting plate (501) when the hilly and mountain tractor is used at the maximum quality.

7. The front axle lock mechanism for a tractor as defined by claim 6, wherein: the position of the bottom surface of the side beam of the hilly and mountain tractor frame (1) corresponding to the front end and the rear end of the locking piece (502) is provided with a second mounting plate (8), and the front end and the rear end of the locking piece (502) are detachably connected between the corresponding second mounting plate (8) and the locking mounting plate (501).

8. The front axle lock mechanism for a tractor as defined by claim 7, wherein: every one end of second mounting panel (8) all is equipped with vertical screw hole, locking mounting panel (501) with both ends correspond the position of screw hole around locking piece (502) and be equipped with coaxial and the unthreaded hole of matching with the screw hole to utilize the screw bolt to run through the unthreaded hole of locking mounting panel (501) and the unthreaded hole spiro union of locking piece (502) in proper order in the screw hole of corresponding second mounting panel (8), in order to realize the rigid connection of locking mounting panel (501), locking piece (502) and second mounting panel (8).

9. The front axle lock mechanism for a tractor as defined by claim 7, wherein: the two end parts of the second mounting plates (8) correspondingly connected with the locking pieces (502) are respectively positioned at two sides of the bottom surface of the side beam of the hilly and mountain tractor frame (1).

10. A front axle locking mechanism for a tractor as defined by claim 3 wherein: a space for the locking piece (502) to penetrate is arranged between the front end part of the leaf spring (3) and the inner top surface of the corresponding leaf spring bracket (2).

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