CN203543511U - Tail pulley for walking tractor - Google Patents

Abstract

The utility model relates to a tail pulley for a walking tractor. The tail pulley comprises a rim and a hub, the rim is formed by welding two inwards-overturned spoke plates, the hub is fixed in the middle of the rim, and the rim is provided with an integrated rubber layer along the radial periphery and the two lateral plates of the rim. The tail pulley is simple in structure, radial welding lines of the rim are protected through the rubber layer, the abrasive resistance of the rim can be improved through elasticity and the rubber layer, shakes of the rim during running are reduced, particularly when the walking tractor runs on a road surface, abrading and cracking of the rim are not caused easily, the service life of the tail pulley is effectively prolonged, and the running stability of the tail pulley is improved.

Description

Tail wheel for walker tractor

Technical field

The utility model relates to a kind of tail wheel for walker tractor, belongs to walker tractor technical field.

Background technology

Lightweight, the advantage such as type is small and exquisite, flexible operation, strong adaptability that walker tractor has, mixes different agricultural machinery and implement, can carry out the multiple farm works such as ploughing, rotary tillage, smooth, hack.And the ploughing tail wheel assembly of supporting walker tractor consists of wheel rim, wheel hub, tail-gear spindle, bearing and oil seal seat, dust boot and tail-wheel fork, bearing, seal ring and oil seal seat are arranged between tail-gear spindle and wheel hub successively, dust boot and tail-wheel fork are installed on tail-gear spindle, and bearing is located by the shaft shoulder of tail-gear spindle and the axle sleeve being arranged in wheel hub.Therefore tail wheel, except playing supporting role, can also assist to turn to by the side force producing after tail wheel deflection, when cultivating operation, also can control by the height of adjusting tail wheel the tilling depth of walker tractor simultaneously.

Conventional wheel rim is in two, to turn over the disc seam that is bathtub construction to form, and the junction of the flange of disc is plane, because of the joint face of weld seam and two disc flange less, and wheel rim is hard contact with ground, be easy to weld seam to wear away, make wheel rim cracking, earlier period damage is serious.For this reason, at present in the junction of two disc flange infolding, form V-shaped groove, to have increased weld seam and two disc, turn over area of contact and the weld penetration at downlink connection place, so the wearing and tearing of wheel rim are no longer the wearing and tearing of weld seam, also solved the serious problem of wheel rim earlier period damage.But because wheel rim adopts welding process, tail wheel soldering member stationarity is poor, and particularly commissure is level and smooth not, produce in motion larger vibrations and noise.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, improves resistance to abrasion, reduces vibrations, improves the tail wheel for walker tractor of tail wheel cruising characteristic.

The utility model is that the technical scheme achieving the above object is: a kind of tail wheel for walker tractor, comprise by two wheel rims that form to the disc seam of in-flanges and be fixed on the wheel hub at wheel rim middle part, it is characterized in that: described wheel rim radially has the rubber layer of one on periphery and biside plate thereof.

The utility model radially has the rubber layer of one on periphery and biside plate thereof at wheel rim; can by rubber layer to wheel rim diameter to weld seam protect; by elasticity people rubber layer, can improve the resistance to abrasion of wheel rim; vibrations when minimizing wheel rim travels; particularly when road traveling; be difficult for causing wearing and tearing and the cracking of wheel rim, effectively raise the service life of tail wheel, improve the stationarity that tail wheel travels.Tail wheel of the present utility model can be used as transportation tail wheel again as ploughing tail wheel.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.

Fig. 1 is that the utility model is for the structural representation of the tail wheel of walker tractor.

Wherein: 1-rubber layer, 2-wheel rim, 3-wheel hub.

The specific embodiment

As shown in Figure 1, the utility model is for the tail wheel of walker tractor, comprise by two wheel rims that form to the disc seam of in-flanges 2 and the wheel hub 3 that is fixed on wheel rim 2 middle parts, wheel hub 3 both sides are provided with bearing hole, tail-gear spindle is bearing on wheel hub 3 by bearing, the junction of this two disc flange forms V-shaped weld, by scolder, fill at V-shaped weld, to increase scolder and two web thickness and width, wheel rim 2 radially has the rubber layer 1 of one on periphery and biside plate thereof, wheel rim after welding 2 and rubber are carried out to sulfuration process, by fixing being connected on wheel rim 2 of rubber.

As shown in Figure 1, the thickness of the utility model rubber layer 1 is at 3-8mm, and this thickness is preferably controlled at 4-6mm, and the length of the rubber layer 1 of wheel rim 2 both sides is at 50～60mm.

Claims (2)

1. the tail wheel for walker tractor, comprise by two wheel rims (2) that form to the disc seam of in-flanges and be fixed on the wheel hub (3) at wheel rim (2) middle part, it is characterized in that: described wheel rim (2) radially has the rubber layer (1) of one on periphery and biside plate thereof.

2. the tail wheel for walker tractor according to claim 1, is characterized in that: the thickness of described rubber layer (1) is at 3-8mm, and the length of the rubber layer (1) of wheel rim (2) both sides is at 50～60mm.

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