CN212423321U - Supporting wheel of excavator - Google Patents

Abstract

The utility model discloses an excavator thrust wheel, including base, through-hole, abrasive rubber, gyro wheel and sprocket, both ends all are fixed with the overcoat about the base top, and the overcoat internal fixation has the spring to the spring end is fixed on the fly leaf, is connected with first damping bearing on the fly leaf simultaneously, abrasive rubber sets up in the bulge outside, and abrasive rubber fixes on the movable rod, the gyro wheel is fixed on the fly leaf, just the gyro wheel sets up at the movable rod inboardly, the sprocket sets up directly over the wheel body. This excavator thrust wheel adopts rotatable limiting plate to fix the thrust wheel, makes things convenient for subsequent dismantlement, utilizes vibrations structure cooperation wear-resisting rubber and the movable rod that the spring is constituteed, when the sprocket takes place the skew to rub the wheel body and consume, to wear-resisting rubber wheel body friction speed reduction, puts the positive sprocket under the effect of spring to reduce the friction time and the friction dynamics of sprocket and wheel body, prolong the life of wheel body.

Description

Supporting wheel of excavator

Technical Field

The utility model relates to an excavator technical field specifically is an excavator thrust wheel.

Background

The excavator is a large-scale mechanical device for excavating, and the excavated materials are mostly soil, coal, silt and the like, so that the excavator is higher in efficiency and higher in speed compared with the traditional manual excavating method, and is one of indispensable important mechanical devices for foundation engineering construction at the present stage.

Along with the development of capital construction, the application range of the excavator is wider and wider, the service environment of most excavators is severe, the damage to the thrust wheel of the important structure of the action of the excavator is larger, the thrust wheel needs to be replaced when being worn to a certain degree, the traditional thrust wheel supporting structure has the problems of simple structure, inconvenience in disassembly and single function caused by the fact that the thrust wheel is easy to block, and therefore the supporting structure of the thrust wheel is urgently needed to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an excavator thrust wheel to propose simple structure in solving above-mentioned background art, dismantle inconvenient and the problem of function singleness.

In order to achieve the above object, the utility model provides a following technical scheme: a supporting wheel of an excavator comprises a base, a through hole, wear-resistant rubber, a roller and a chain wheel, wherein the left end and the right end above the base are respectively fixed with a jacket, a spring is fixed in the jacket, the tail end of the spring is fixed on a movable plate, the movable plate is connected with a first damping bearing, the first damping bearing is connected with a limiting plate, the limiting plate is connected with a screw rod, the tail end of the screw rod is fixed with a nut, the screw rod is arranged in the through hole, the through hole is formed in the fixed plate, the fixed plate is connected with a wheel shaft, the outer side of the wheel shaft is provided with a bush, the bush is fixed in the wheel body, a sealing ring is arranged in the wheel body and is connected with the wheel shaft, the edge of the wheel body is provided with a convex circle, the wear-resistant rubber is arranged on the outer side of the convex circle, the wear, the roller is fixed on the movable plate, the roller is arranged on the inner side of the movable rod, and the chain wheel is arranged right above the wheel body.

Preferably, the movable plate and the outer sleeve form a vibration mechanism through a spring, and the vibration amplitude of the movable plate through the spring is smaller than the distance from the outer surface of the roller to the inner surface of the outer sleeve.

Preferably, the limiting plate and the movable plate form a rotating mechanism through the first damping bearing, the rotating amplitude of the limiting plate of the first damping bearing is 0-90 degrees, and the limiting plate is symmetrically distributed around the movable plate.

Preferably, the wheel body is made of high-carbon manganese steel, the hardness of the wheel body is HRC48, and the diameter of the outer side of the wheel body is larger than that of the inner side of the wheel body.

Preferably, wear-resisting rubber is the symmetric distribution about the wheel body, and wear-resisting rubber is the arc structure to wear-resisting rubber inboard diameter size equals with wheel body outside diameter size, and wear-resisting rubber width is greater than wheel body outside width simultaneously.

Preferably, the movable rod and the outer sleeve form a rotating mechanism through a second damping bearing, and the tail end of the movable rod is of an arc structure.

Compared with the prior art, the beneficial effects of the utility model are that: this excavator thrust wheel adopts rotatable limiting plate to fix the thrust wheel, makes things convenient for subsequent dismantlement, utilizes vibrations structure cooperation wear-resisting rubber and the movable rod that the spring is constituteed, when the sprocket takes place the skew to rub the wheel body and consume, to wear-resisting rubber wheel body friction speed reduction, puts the positive sprocket under the effect of spring to reduce the friction time and the friction dynamics of sprocket and wheel body, prolong the life of wheel body.

1. When the sprocket takes place to squint left, the wheel body compresses the left side spring under the effect of sprocket, tensile right side spring, and the spring is out of shape this moment, makes the fly leaf positive under the spring force effect to make the sprocket positive, thereby reach absorbing effect.

2. When the chain wheel deviates leftwards and the spring deforms, the movable plate moves to drive the movable rod to rotate, so that the wear-resistant rubber locks the wheel body, the rotating speed of the wheel body is reduced, the chain wheel is waited to be aligned under the action of the spring, and the effect of reducing the friction between the wheel body and the chain wheel is achieved,

drawings

FIG. 1 is a schematic view of the front view structure of the base of the present invention;

FIG. 2 is a schematic top view of the wheel body according to the present invention;

FIG. 3 is a schematic side view of the wheel body of the present invention;

fig. 4 is a schematic view of the front view structure of the movable rod of the present invention.

In the figure: 1. a base; 2. a jacket; 3. a spring; 4. a movable plate; 5. a first damping bearing; 6. a limiting plate; 7. a screw; 8. a nut; 9. a through hole; 10. a fixing plate; 11. a wheel axle; 12. a bushing; 13. a wheel body; 14. a seal ring; 15. convex round; 16. wear-resistant rubber; 17. a movable rod; 18. a second damping bearing; 19. a roller; 20. and a sprocket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a supporting wheel of an excavator comprises a base 1, an outer sleeve 2, a spring 3, a movable plate 4, a first damping bearing 5, a limiting plate 6, a screw 7, a nut 8, a through hole 9, a fixed plate 10, a wheel shaft 11, a bush 12, a wheel body 13, a sealing ring 14, a convex circle 15, wear-resistant rubber 16, a movable rod 17, a second damping bearing 18, a roller 19 and a chain wheel 20, wherein the outer sleeve 2 is fixed at the left end and the right end above the base 1, the spring 3 is fixed in the outer sleeve 2, the tail end of the spring 3 is fixed on the movable plate 4, the movable plate 4 is connected with the first damping bearing 5, the first damping bearing 5 is connected with the limiting plate 6, the limiting plate 6 is connected with the screw 7, the nut 8 is fixed at the tail end of the screw 7, the screw 7 is arranged in the through hole 9, the through hole 9 is arranged on the fixed plate 10, the fixed plate 10 is connected with the, the bush 12 is fixed in the wheel body 13, and a seal ring 14 is arranged in the wheel body 13, and the seal ring 14 is connected with the wheel shaft 11, and simultaneously the wheel body 13 edge is provided with a convex circle 15, the wear-resistant rubber 16 is arranged outside the convex circle 15, and the wear-resistant rubber 16 is fixed on the movable rod 17, and the movable rod 17 is connected with the outer sleeve 2 through a second damping bearing 18, the roller 19 is fixed on the movable plate 4, and the roller 19 is arranged inside the movable rod 17, and the sprocket 20 is arranged right above the wheel body 13.

The movable plate 4 and the jacket 2 form a vibration mechanism through the spring 3, and the vibration amplitude of the movable plate 4 through the spring 3 is smaller than the distance from the outer surface of the roller 19 to the inner surface of the jacket 2, so that the roller 19 on the movable plate 4 cannot collide with the jacket 2 when the spring 3 is compressed or stretched.

The limiting plate 6 forms a rotating mechanism with the movable plate 4 through the first damping bearing 5, the rotating amplitude of the limiting plate 6 with the first damping bearing 5 is 0-90 degrees, the limiting plate 6 is symmetrically distributed relative to the movable plate 4, the wheel body 13 is convenient to disassemble and assemble, when the wheel body 13 needs to be replaced, only the screw rod 7 needs to be loosened, and the wheel body 13 can be taken out by rotating the limiting plate 6.

The material of wheel body 13 is high carbon manganese steel, and wheel body 13 hardness is HRC48 to wheel body 13 outside diameter is greater than the inboard diameter, and the material of high hardness can increase the wearability of wheel body 13, and wheel body 13 outside diameter is greater than the inboard diameter and can prevent that sprocket 20 from sideslipping excessively and breaking away from wheel body 13, guarantees excavator's safety.

The wear-resistant rubber 16 is symmetrically distributed about the wheel body 13, the wear-resistant rubber 16 is of an arc-shaped structure, the inner diameter of the wear-resistant rubber 16 is equal to the outer diameter of the wheel body 13, meanwhile, the width of the wear-resistant rubber 16 is larger than the outer width of the wheel body 13, the wear-resistant rubber 16 can be fully clamped on the wheel body 13 when the chain wheel 20 deviates, and the rotating speed of the wheel body 13 is reduced.

The movable rod 17 and the outer sleeve 2 form a rotating mechanism through the second damping bearing 18, and the tail end of the movable rod 17 is of an arc-shaped structure, so that the movable rod 17 can rotate through the roller 19 when the movable plate 4 moves, and the limiting effect of the wear-resistant rubber 16 on the wheel body 13 is realized.

The working principle is as follows: firstly, loosening the nut 8 to unlock the limit plate 6 and the fixing plate 10, taking out the screw 7, rotating the limit plate 6 through the first damping bearing 5 to take out the damaged wheel body 13, and installing a new wheel body 13 according to the principle, as shown in fig. 1;

after the wheel body 13 is installed, during the operation of the excavator, the sprocket 20 slightly slides to the left due to the external environment, thereby pressing the inner wall of the wheel body 13, the wheel body 13 is pressed to further press the movable plate 4, the left end spring 3 is contracted, the right end spring 3 is stretched, when the flap 4 moves, the rollers 19 at both ends of the flap 4 roll on the movable rod 17, thereby rotating the movable rod 17 through the second damping bearing 18, so that the wear-resistant rubber 16 at the tail end of the movable rod 17 is attached to the edge convex circle 15 of the wheel body 13, thereby reducing the rotating speed of the wheel body 13, reducing the friction damage caused by the chain wheel 20 extruding the wheel body 13, prolonging the service life of the wheel body 13, then aligning the chain wheel 20 through the action of the spring 3, the wheel body 13 is normally operated according to the principle, so that the effects of shock absorption and friction loss reduction are achieved, and the working principle of the thrust wheel of the excavator is the principle.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an excavator thrust wheel, includes base (1), through-hole (9), wear-resisting rubber (16), gyro wheel (19) and sprocket (20), its characterized in that: the left end and the right end above the base (1) are both fixed with outer sleeves (2), springs (3) are fixed in the outer sleeves (2), the tail ends of the springs (3) are fixed on the movable plate (4), meanwhile, the movable plate (4) is connected with first damping bearings (5), the first damping bearings (5) are connected with the limiting plates (6), the limiting plates (6) are connected with the screw rods (7), nuts (8) are fixed at the tail ends of the screw rods (7), the screw rods (7) are arranged in the through holes (9), the through holes (9) are arranged on the fixing plates (10), the fixing plates (10) are connected with the wheel shafts (11), meanwhile, bushings (12) are arranged on the outer sides of the wheel shafts (11), the bushings (12) are fixed in the wheel bodies (13), sealing rings (14) are arranged in the wheel bodies (13), and the sealing rings (14) are connected with the wheel shafts (11), wheel body (13) edge is provided with bulge (15) simultaneously, wear-resisting rubber (16) set up in bulge (15) outside, and wear-resisting rubber (16) fix on movable rod (17) to movable rod (17) are through second damping bearing (18) and overcoat (2) interconnect, gyro wheel (19) are fixed on fly leaf (4), just gyro wheel (19) set up in movable rod (17) inboard, sprocket (20) set up directly over wheel body (13).

2. The supporting wheel for the excavator according to claim 1, wherein: the movable plate (4) and the outer sleeve (2) form a vibration mechanism through the spring (3), and the vibration amplitude of the movable plate (4) through the spring (3) is smaller than the distance from the outer surface of the roller (19) to the inner surface of the outer sleeve (2).

3. The supporting wheel for the excavator according to claim 1, wherein: the limiting plate (6) and the movable plate (4) form a rotating mechanism through the first damping bearing (5), the rotating amplitude of the limiting plate (6) with the first damping bearing (5) is 0-90 degrees, and the limiting plate (6) is symmetrically distributed relative to the movable plate (4).

4. The supporting wheel for the excavator according to claim 1, wherein: the material of the wheel body (13) is high carbon manganese steel, the hardness of the wheel body (13) is HRC48, and the diameter of the outer side of the wheel body (13) is larger than that of the inner side of the wheel body.

5. The supporting wheel for the excavator according to claim 1, wherein: the wear-resistant rubber (16) is symmetrically distributed about the wheel body (13), the wear-resistant rubber (16) is of an arc structure, the diameter of the inner side of the wear-resistant rubber (16) is equal to the diameter of the outer side of the wheel body (13), and the width of the wear-resistant rubber (16) is larger than the width of the outer side of the wheel body (13).

6. The supporting wheel for the excavator according to claim 1, wherein: the movable rod (17) and the outer sleeve (2) form a rotating mechanism through a second damping bearing (18), and the tail end of the movable rod (17) is of an arc-shaped structure.

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