CN204472915U - Novel front wheel guard structure - Google Patents

Abstract

The utility model relates to a new front wheel fender structure, comprising a front fender cover and a bracket with a mounting seat at the lower part, the upper part of the front fender cover has a connecting piece protruding inward, and the connecting piece is fixedly connected with the step shaft , the torsion spring is set on the step shaft and arranged in the shaft sleeve, the bottom of the step shaft passes through the bottom plate of the shaft sleeve and is connected with the locking piece, one end of the torsion spring is connected with the shaft sleeve, and the other end is connected with the step shaft; the shaft The sleeve is provided with an adjusting lug along the circumference, and the adjusting piece for adjusting the initial position angle of the bracket and the front fender cover is installed on the top of the bracket, and the adjusting piece is pushed against the radial surface of the adjusting lug. The utility model has a simple and reasonable structure, can not only adjust the initial position angle of the front fender cover, but also does not affect the steering performance of the front wheel, and has better versatility.

Description

New front fender structure

technical field

The utility model relates to a novel front wheel fender structure, which belongs to the technical field of wheeled tractors.

Background technique

A front fender cover needs to be installed on the front wheels of a wheeled tractor, and the front fender cover is installed on the side reducer housing of the front axle of the tractor through a bracket connected to it to improve its safety protection performance. The angle of the front fender cover after installation is fixed. When the front wheels turn, the front fender cover rotates synchronously with the front wheels. When the front fender cover rotates to the extreme position, it will collide with the diesel engine and the frame. And interference, so make the front wheel angle becomes smaller, and affect the steering performance of the tractor. In order to solve the interference problem of the front fender cover, the steering knuckle of the front axle of the existing wheeled tractor is equipped with a mounting plate or a connecting piece assembly, and the front fender cover is installed with the mounting plate or connected with the bracket. On the component assembly, but the elastic rotation device and the limit device are installed on the installation plate, due to the limitation of the installation position, the installation operation is inconvenient. Furthermore, the existing front wheel fender structure is relatively complicated, and the initial position angle of the front fender cover cannot be adjusted, so the versatility is poor.

Contents of the invention

The purpose of the utility model is to provide a new front wheel fender with simple and reasonable structure, which can not only adjust the initial position angle of the front fender cover, but also not affect the steering performance of the front wheel.

The technical scheme of the utility model to achieve the above object is: a new front wheel fender structure, including a front fender cover and a bracket with a mounting seat at the bottom, characterized in that: the upper part of the front fender cover has a The connecting piece protruding from the inner side is fixedly connected with the step shaft. The torsion spring is set on the step shaft and arranged in the rotating shaft sleeve. The lower part of the step shaft passes through the bottom plate of the rotating shaft sleeve to connect with the locking piece. The rotating shaft sleeve is connected, and the other end is connected with the step shaft; the rotating shaft sleeve is provided with an adjusting protrusion along the circumferential direction, and the adjusting piece used to adjust the initial position angle between the bracket and the front fender cover is installed on the upper part of the bracket, and the adjusting piece is pushed against the adjustment radial face of the bump.

The utility model is provided with a connecting piece on the upper part of the front fender cover, and the connecting piece is fixedly connected with the step shaft. The shaft is connected with the shaft sleeve, and the front fender cover returns to the initial position with the steering of the front wheel through the torsion spring, and the adjustment piece is connected to the bracket to push against the radial surface of the adjustment projection on the upper part of the shaft sleeve. When the fender cover rotates relative to the bracket and touches the frame and the diesel engine does not rotate, the shaft sleeve and the step shaft rotate relatively. When the front fender cover does not rotate, the front wheels can continue to turn without affecting the front wheel steering performance, to achieve the ultimate steering purpose, and effectively solve the problem of interference between the front wheel fender and the diesel engine and frame when the front wheel is turning. The utility model is provided with the adjusting lug on the rotating shaft sleeve, so the initial position angle between the bracket and the front fender cover can be adjusted by adjusting the adjusting piece connected to the upper part of the bracket, has better versatility, and is simple and reasonable in structure. The utility model only needs to install the mounting seat at the bottom of the bracket on the side reducer housing of the front axle, and the step shaft and the rotating shaft sleeve are all arranged on the upper part of the bracket, so the installation space is large and the installation and operation are convenient.

Description of drawings

Embodiments of the present utility model are described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the structural representation of front wheel fender of the present utility model.

FIG. 2 is a schematic side view of the structure of FIG. 1 .

FIG. 3 is a schematic top view of the structure in FIG. 1 .

FIG. 4 is a schematic diagram of an enlarged structure at I in FIG. 2 .

Fig. 5 is a three-dimensional structural schematic diagram of the front wheel fender structure of the present invention.

Among them: 1—front fender cover, 2—shaft sleeve, 2-1—adjusting bump, 2-2—positioning hole, 2-3—bottom plate, 3—connecting piece, 4—step shaft, 5—adjusting piece , 6—locking piece, 7—bracket, 7-1—installation seat, 8—torsion spring.

Detailed ways

As shown in Figure 1, the novel front wheel fender structure of the present utility model includes a front fender cover 1 and a bracket 7 with a mounting seat 7-1 at the bottom, as shown in Figures 1, 2 and 5, the utility model The bracket 7 includes a pole with a bent portion in the middle and a mounting base 7-1, and the mounting base 7-1 is arranged on both sides of the pole, so that the bracket 7 has better mechanical strength.

As shown in Figures 1 to 5, the upper part of the front fender cover 1 of the present utility model has a connecting piece 3 protruding inwardly. The shaft diameter of the upper part of the stepped shaft 4 of the utility model is larger than the shaft diameter of the lower part, the connecting piece 3 can be welded on the top of the front fender cover 1 and the stepped shaft 4 or fixed by a conventional method, the torsion spring 8 is sleeved on the stepped shaft 4 and Arranged in the rotating shaft sleeve 2, the connecting shaft at the bottom of the step shaft 4 passes through the bottom plate 2-3 of the rotating shaft sleeve 2 to connect with the locking member 6.

As shown in Figure 4, the stepped shaft 4 of the present invention includes a large-diameter shaft whose upper part is fixed with the connecting piece 3, a positioning shaft for positioning, a journal for installing the torsion spring 8 and a connecting shaft at the lower part, and the rotating shaft sleeve 2 There is a positioning hole 2-2 on the top, and the positioning shaft of the step shaft 4 matches the positioning hole 2-2 on the rotating shaft sleeve 2. The rotating shaft sleeve 2 of the utility model can be made of wear-resistant materials, or the positioning hole 2-2 of the rotating shaft sleeve 2 2 places are provided with bearings or bushings, so that they can rotate relatively reliably and have small frictional resistance.

As shown in Figures 1 to 5, the lock member 6 of the present invention is a lock nut or/and a lock pin, and the lock nut or/and the lock pin are installed on the connecting shaft. The connecting shaft of the step shaft 4 of the utility model is provided with threads, and the lock nut is screwed on the connecting shaft; -3 phase connection; the utility model can also screw the lock nut on the connecting shaft, then use the lock pin to pass through the radial pin hole on the connecting shaft and set it in the lock groove of the lock nut, and the step shaft 4 Connect with the shaft sleeve 2. See shown in Figure 4, one end of the torsion spring 8 of the utility model is connected with the rotating shaft sleeve 2, and the other end is connected with the step shaft 4, and one end of the torsion spring 8 can be hooked on the large-diameter shaft of the rotating shaft sleeve 2, and the torsion spring 8 The other end of the hook is hooked on the base plate 2-3 of the rotating shaft sleeve 2, and when turning to reset, the front fender cover 1 returns to the original position by the torsion spring 8.

As shown in Figures 1 to 5, the rotating shaft sleeve 2 of the utility model is provided with an adjusting projection 2-1 along the circumference, and the adjusting part 5 for adjusting the initial position angle between the bracket 7 and the front fender cover 1 is installed on the upper part of the bracket 7. And the adjustment member 5 is on the radial surface of the adjustment protrusion 2-1, and the initial position angle of the bracket 7 and the front fender cover 1 is adjusted by adjusting the extension length of the adjustment member 5. The rotating shaft sleeve 2 of the present utility model The adjustment projection 2-1 on the top is preferably arranged on the top, which can be arranged symmetrically. The adjusting part 5 of the present utility model can adopt a screw rod, or the adjusting part 5 can adopt a screw rod and a nut, the screw rod is screwed on the upper part of the bracket 7 and used to push against the radial surface of the adjusting bump 2-1, and the lock nut is screwed on the screw rod When adjusting, loosen the lock nut and adjust the extension length of the screw until the initial position angle between the required bracket 7 and the front fender cover 1 is reached, and then put the lock nut on the The locking screw rod on the bracket 7 can be applicable to the installation requirements of the front wheel fenders of different models.

Claims (4)

1. a novel front wheel guard structure, comprise the support (7) that front fender apron cover (1) and bottom have mount pad (7-1), it is characterized in that: described front fender apron cover (1) top has the attaching parts (3) stretched out to the inside, attaching parts (3) is fixedly connected with Step Shaft (4), torsion spring (8) is sleeved on Step Shaft (4) and goes up and be arranged in rotating shaft cover (2), the base plate (2-3) that the bottom of Step Shaft (4) passes rotating shaft cover (2) is connected with locking piece (6), one end of torsion spring (8) is connected with rotating shaft cover (2), the other end is connected with Step Shaft (4), described rotating shaft cover (2) is circumferentially provided with and regulates projection (2-1), for regulating support (7) to be arranged on the top of support (7) with the regulating part (5) of front fender apron cover (1) initial position angle, and regulating part (5) withstands on the radial face of adjustment projection (2-1).

2. novel front wheel guard structure according to claim 1, it is characterized in that: described support (7) comprises pole and the mount pad (7-1) that middle part has bending part, and mount pad (7-1) is arranged on the both sides of pole.

3. novel front wheel guard structure according to claim 1, it is characterized in that: described Step Shaft (4) comprises the fixing large journal axle of top and attaching parts (3), for the fix shaft of locating and the adapter shaft for the axle journal and bottom of installing torsion spring (8), rotating shaft cover (2) has knock hole (2-2), knock hole (2-2) on the fix shaft of Step Shaft (4) and rotating shaft cover (2) matches, described locking piece (6) is for jam nut or/and lock pin, and jam nut is or/and lock pin is arranged on adapter shaft.

4. novel front wheel guard structure according to claim 1, it is characterized in that: described regulating part (5) is screw rod, or regulating part (5) is screw rod and nut, screw rod be screwed in support (7) top and with withstand on regulate projection (2-1) radial face on, nut to be screwed on screw rod and to withstand on support (7).