Tractor axle with anti-skid structure

Abstract

The utility model relates to the technical field of wheel axles, and provides a tractor wheel axle with an anti-skid structure, which comprises an axle rod, two ends of the axle rod are fixedly connected with fixing rings, one end of each fixing ring is fixedly connected with a wheel seat, the surface of each wheel seat is fixedly connected with a flat key, one end of each wheel seat is fixedly connected with a journal, and the journal is fixedly connected with an anti-skid structure. The fixing grooves are formed in the flat key at equal intervals, reset springs are movably connected to the middle positions of the interiors of the fixing grooves, sliding columns extending to the exterior of the flat key are fixedly connected to the two ends of the reset springs, and anti-skid pieces are fixedly connected to one ends of the sliding columns. When the flat key is inserted into the hub key groove, the anti-skid piece can move relatively, at the moment, the sliding column can move to drive one end of the anti-skid piece to be tightly attached to the inner wall of the key groove through the elastic force of the reset spring, the gap between the flat key and the key groove caused by production errors is made up, and the anti-skid effect of installation and fixation between the wheel seat and the hub is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel axles, in particular to a traction wheel axle with an anti-skid structure. Background Art

[0002] The front of the vehicle with driving capability is called a tractor. It is often used to transport large quantities of goods within or between workshops. The demand for it is huge nowadays. The wheel axle is an important component of the tractor. It can change the torque of the torque, thereby changing the size of the torque, and then ensure the normal transmission of the tractor's power.

[0003] After searching, the existing patent (Announcement No.: CN219989186U) discloses a traction wheel axle with an anti-skid structure, including an axle and a wheel, the wheel is arranged at one end of the axle through a spline fit, the outer side of the axle is rotatably connected with a fixed collar, the top of the fixed collar is fixedly connected with an L-shaped plate, the inner side of the L-shaped plate is provided with an adjustment assembly, the bottom of the adjustment assembly is provided with three cleaning rods, the outer side of the wheel is equidistantly provided with annular grooves, and one end of the cleaning rod extends to the inside of the annular groove. The utility model solves the problem that during driving, some small stones on the road surface are easily stuck in the inside of the pattern groove. At this time, when skidding occurs, the pattern block cannot obtain a large tangential elastic deformation, thereby reducing the tangential force, and the tangential deformation is reduced accordingly, which in turn causes the friction of the contact surface to be reduced, which is further prone to skidding and is not conducive to actual use.

[0004] However, in the above scheme, the anti-skid performance is poor, and the connection between the wheel axle and the wheel hub is not tight enough. It usually uses a flat key on the wheel axle for initial engagement, and then is locked and fixed by external bolts. However, due to factors such as production errors, the gap between the wheel axle flat key and the wheel hub keyway is large, making it inconvenient to ensure the tight and firm engagement between the two, which leads to poor anti-skid performance of the engagement between the two.

[0005] In view of this, the utility model provides a traction wheel axle with an anti-skid structure. Utility Model Content

[0006] The utility model provides a traction wheel axle with an anti-skid structure, which solves the problem of poor anti-skid performance in the related technology.

[0007] The technical solution of the utility model is as follows: a traction wheel axle with an anti-skid structure, comprising an axle rod, both ends of the axle rod are fixedly connected with fixing rings, one end of the fixing ring is fixedly connected with a wheel seat, a flat key is fixedly connected to the surface of the wheel seat, anti-skid components are arranged on both sides of the flat key, and one end of the wheel seat is fixedly connected with a shaft neck.

[0008] The anti-skid component includes a fixing groove, which is arranged at equal intervals inside the flat key. A return spring is movably connected at the middle position inside the fixing groove. Both ends of the return spring are fixedly connected with sliding columns extending to the outside of the flat key. One end of the sliding column is fixedly connected with an anti-skid sheet. When the flat key is inserted into the keyway of the wheel hub, the anti-skid sheet will move relatively. At this time, the elastic force of the return spring can be used to make the sliding column move and drive one end of the anti-skid sheet to stick to the inner wall of the keyway, thereby compensating for the gap between the flat key and the keyway caused by production errors and improving the anti-skid effect of the installation and fixation between the wheel seat and the wheel hub.

[0009] Preferably, one side of the anti-skid sheet is beveled, and the anti-skid sheet is symmetrically distributed about the vertical center axis of the flat key, so that when the hub keyway is clamped to the flat key, the anti-skid sheet is more likely to move.

[0010] Preferably, one end of the anti-skid sheet is fixedly connected with anti-skid protrusions at equal intervals, and the shape of the anti-skid protrusions in a top view is arc-shaped, which further improves the frictional fastening between one end of the anti-skid sheet and the keyway.

[0011] Preferably, one end of the sliding column and one end of the anti-skid sheet are welded into an integrated structure, and the shape of the sliding column in a top view is an inverted T shape, thereby ensuring a tight and firm connection between the anti-skid sheet and the sliding column.

[0012] Preferably, limiting grooves are provided on both sides of the inner wall of the fixing groove, and limiting blocks slidably matched with the inside of the limiting grooves are fixedly connected to both sides of one end of the sliding column, so that the sliding column can slide back and forth more smoothly.

[0013] Preferably, the cross-section of the flat key is in the shape of an inverted I-shape, and there are three flat keys distributed at equal angles on the surface of the wheel seat, which facilitates the engagement between the flat key and the key slot and provides space for the anti-slip sheet to slide.

[0014] Preferably, oil storage grooves are opened on both sides of the shaft neck surface, and the inner wall of the oil storage groove is fixedly connected with a fixed block. The space formed by the oil storage groove and the fixed block can store corresponding lubricating grease, thereby facilitating smoother rotation between the shaft neck and the external bearing seat.

[0015] Preferably, the cross-section of the fixing block is in an arc shape, and there are three fixing blocks distributed at equal angles, so that the residual grease in the oil storage tank can be cleaned out more conveniently, reducing the residual grease.

[0016] Preferably, one end of the shaft neck is provided with shaft end screw holes at equal angles, and there are three shaft end screw holes distributed at equal angles, so as to facilitate the installation of one end of the shaft neck with the bearing front cover or the pressure plate.

[0017] Preferably, a center hole is opened in the middle of one end of the journal, and the cross-section of the center hole is O-shaped, so that it can be used as a fulcrum for the pinhole of the machine tool during processing and assembling of the axle, and can be used as a center for calibrating the roundness of the journal and wheel.

[0018] The working principle and beneficial effects of the utility model are:

[0019] 1. In the utility model, by providing the flat key and the anti-skid assembly, when the flat key is inserted into the keyway of the wheel hub, the anti-skid sheet will move relatively. At this time, the elastic force of the reset spring can be used to make the sliding column move to drive one end of the anti-skid sheet to be close to the inner wall of the keyway, and the arc-shaped anti-skid protrusion can be used to further improve the friction tightness of the clamping of the two, thereby improving the firmness of the clamping of the flat key and the keyway, and can make up for the gap between the flat key and the keyway caused by production errors, improve the anti-skid effect of the installation and fixation between the wheel seat and the wheel hub, ensure the firmness and stability of the installation of the two, improve its practicality, and thus achieve the effect of better anti-skid performance;

[0020] 2. In the utility model, an oil storage groove and a fixed block are provided. The fixed block is used to divide the interior of the oil storage groove into three spaces. The oil storage groove is then used to store corresponding lubricating grease after the shaft neck and the bearing seat are installed, thereby facilitating smoother rotation between the shaft neck and the external bearing seat, avoiding the cumbersome inconvenience of frequent addition of lubricating grease due to the smooth surface of the shaft neck, reducing the number of additions, improving its practicability, and thus achieving the effect of improving the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0024] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0025] Figure 4 It is an enlarged structural diagram of the fixing ring of the utility model;

[0026] Figure 5 For the utility model Figure 3 Enlarged structural diagram at A in the middle.

[0027] In the figure: 1. shaft rod; 2. fixing ring; 3. flat key; 4. shaft neck; 5. shaft end screw hole; 6. center hole; 7. wheel seat; 8. anti-skid assembly; 801. anti-skid protrusion; 802. anti-skid sheet; 803. sliding column; 804. fixing groove; 805. return spring; 806. limit block; 807. limit groove; 9. oil storage tank; 10. fixing block. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] The preferred embodiment of the traction wheel axle with anti-skid structure provided by the utility model is as follows: Figures 1 to 5 As shown: a traction wheel axle with an anti-skid structure, including an axle rod 1, two ends of the axle rod 1 are fixedly connected with fixing rings 2, one end of the fixing ring 2 is fixedly connected with a wheel seat 7, a flat key 3 is fixedly connected to the surface of the wheel seat 7, anti-skid components 8 are arranged on both sides of the flat key 3, and one end of the wheel seat 7 is fixedly connected with a shaft neck 4.

[0031] The anti-skid component 8 includes a fixing groove 804, which is evenly spaced inside the flat key 3. A return spring 805 is movably connected at the middle position inside the fixing groove 804. Both ends of the return spring 805 are fixedly connected with sliding columns 803 extending to the outside of the flat key 3. One end of the sliding column 803 is fixedly connected with an anti-skid sheet 802. When the flat key 3 is inserted into the keyway of the wheel hub, the anti-skid sheet 802 will move relatively. At this time, the elastic force of the return spring 805 can be used to make the sliding column 803 move to drive one end of the anti-skid sheet 802 to be close to the inner wall of the keyway, thereby improving the anti-skid effect of the fixed installation between the wheel seat 7 and the wheel hub.

[0032] In this embodiment, one side of the anti-skid sheet 802 is beveled, and the anti-skid sheet 802 is symmetrically distributed about the vertical center axis of the flat key 3. By using the beveled anti-skid sheet 802, when the hub keyway is clamped to the flat key 3, the anti-skid sheet 802 is easier to move, thereby improving the clamping of the two to be smoother.

[0033] In this embodiment, one end of the anti-skid sheet 802 is fixedly connected with anti-skid protrusions 801 at equal intervals, and the shape of the anti-skid protrusions 801 in a top view is arc-shaped. The arc-shaped anti-skid protrusions 801 are used to further improve the frictional tightness between one end of the anti-skid sheet 802 and the key slot.

[0034] In this embodiment, one end of the sliding column 803 and one end of the anti-slip sheet 802 are welded into an integrated structure, and the shape of the sliding column 803 in a top view is an inverted T shape. The welding between the anti-slip sheet 802 and the sliding column 803 is utilized to ensure the tightness and firmness of the connection between the two, thereby improving the mechanical strength of the connection between the two.

[0035] In this embodiment, limiting grooves 807 are provided on both sides of the inner wall of the fixed groove 804, and limiting blocks 806 that slide in cooperation with the inside of the limiting groove 807 are fixedly connected on both sides of one end of the sliding column 803. The sliding of the limiting blocks 806 in the limiting groove 807 makes the sliding back and forth of the sliding column 803 more stable, thereby improving the stability of the sliding of the anti-slip sheet 802 under force.

[0036] In this embodiment, the cross-section of the flat key 3 is in the shape of an inverted I-shape, and there are three flat keys 3 distributed at equal angles on the surface of the wheel seat 7. The three inverted I-shaped flat keys 3 distributed at equal angles can facilitate the engagement between the flat key 3 and the key slot, and can provide space for the anti-slip sheet 802 to slide.

[0037] Example 2

[0038] On the basis of Example 1, a preferred embodiment of the traction wheel axle with an anti-skid structure provided by the utility model is as follows: Figures 1 to 5 As shown: oil storage grooves 9 are opened on both sides of the surface of the journal 4, and the inner wall of the oil storage groove 9 is fixedly connected with a fixing block 10. By utilizing the opened oil storage grooves 9, after the journal 4 and the bearing seat are installed, the corresponding lubricating grease can be stored inside, thereby facilitating smoother rotation between the journal 4 and the external bearing seat.

[0039] In this embodiment, the cross-section of the fixing block 10 is arc-shaped, and there are three fixing blocks 10 distributed at equal angles. By using the arc-shaped fixing block 10, when cleaning the inside of the oil storage tank 9, the residual lubricating grease inside can be cleaned out more conveniently, thereby reducing the residual lubricating grease.

[0040] Furthermore, one end of the shaft neck 4 is provided with shaft end screw holes 5 at equal angles, and there are three shaft end screw holes 5 distributed at equal angles. The three shaft end screw holes 5 distributed at equal angles facilitate the installation of one end of the shaft neck 4 and the bearing front cover or pressure plate, preventing the rolling bearing from moving outward or jumping out.

[0041] In addition, a center hole 6 is opened in the middle position of one end of the journal 4, and the cross-section of the center hole 6 is O-shaped. The O-shaped center hole 6 can be used as a fulcrum for the pinhole of the machine tool during the processes of processing the axle and assembling, and can be used as a center for calibrating the roundness of the journal 4 and the wheel.

[0042] The working principle and use process of the utility model are as follows: first, when the flat key 3 is inserted into the keyway of the wheel hub, the anti-skid sheet 802 moves to drive the sliding column 803 to slide inside the fixed groove 804 to compress the reset spring 805, and then the elastic force of the reset spring 805 can be used to make the sliding column 803 move to drive one end of the anti-skid sheet 802 to be close to the inner wall of the keyway, and the arc-shaped anti-skid protrusion 801 is used to further improve the frictional fastening of the two, thereby improving the firmness of the clamping of the flat key 3 and the keyway, and can make up for the gap between the flat key 3 and the keyway caused by production errors, thereby improving the anti-skid effect of the installation and fixation between the wheel seat 7 and the wheel hub;

[0043] After the wheel hub is installed, the rolling bearing seat is installed on the surface of the shaft neck 4. At this time, the oil storage groove 9 is opened so that after the shaft neck 4 and the bearing seat are installed, the corresponding lubricating grease can be stored inside, thereby facilitating smoother rotation between the shaft neck 4 and the external bearing seat. Then, three shaft end screw holes 5 distributed at equal angles are used to facilitate the installation of one end of the shaft neck 4 and the bearing front cover or pressure plate, preventing the rolling bearing from moving outward or jumping out, thereby facilitating the normal use of the shaft rod 1.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tractor wheel axle with an anti-skid structure, comprising an axle rod (1), characterized in that: The two ends of the shaft rod (1) are fixedly connected to fixing rings (2), one end of the fixing ring (2) is fixedly connected to a wheel seat (7), a flat key (3) is fixedly connected to the surface of the wheel seat (7), anti-slip components (8) are arranged on both sides of the flat key (3), and one end of the wheel seat (7) is fixedly connected to a shaft neck (4); The anti-slip assembly (8) comprises a fixing groove (804) which is arranged at equal intervals inside the flat key (3); a return spring (805) is movably connected at a middle position inside the fixing groove (804); both ends of the return spring (805) are fixedly connected to a sliding column (803) extending to the outside of the flat key (3); and one end of the sliding column (803) is fixedly connected to an anti-slip sheet (802).

2. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: One side of the anti-slip sheet (802) is beveled, and the anti-slip sheet (802) is symmetrically distributed about the vertical center axis of the flat key (3).

3. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: One end of the anti-slip sheet (802) is fixedly connected with anti-slip protrusions (801) at equal intervals, and the shape of the anti-slip protrusions (801) in a top view is arc-shaped.

4. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: One end of the sliding column (803) and one end of the anti-slip sheet (802) are welded into an integrated structure, and the shape of the sliding column (803) in a top view is an inverted T shape.

5. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: The inner wall of the fixing groove (804) is provided with limiting grooves (807) on both sides, and limiting blocks (806) that are slidably matched with the inside of the limiting groove (807) are fixedly connected to both sides of one end of the sliding column (803).

6. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: The cross-section of the flat key (3) is in the shape of an inverted I-shape, and three flat keys (3) are distributed at equal angles on the surface of the wheel seat (7).

7. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: Oil storage grooves (9) are provided on both sides of the surface of the journal (4), and a fixing block (10) is fixedly connected to the inner wall of the oil storage groove (9).

8. The tractor wheel axle with an anti-skid structure according to claim 7, characterized in that: The cross-section of the fixing block (10) is in an arc shape, and there are three fixing blocks (10) distributed at equal angles.

9. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: One end of the shaft neck (4) is provided with shaft end screw holes (5) at equal angles, and three shaft end screw holes (5) are distributed at equal angles.

10. The tractor wheel axle with an anti-skid structure according to claim 1, characterized in that: A central cavity (6) is provided at the middle position of one end of the journal (4), and the cross-section of the central cavity (6) is in an O-shape.

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