Thrust wheel for engineering machinery excavator

Abstract

The utility model discloses a thrust wheel for an engineering machinery excavator, which relates to the technical field of excavator accessories, and comprises a thrust wheel body and a thrust wheel shaft, positioning plates are respectively arranged on the left side and the right side of the thrust wheel body, a wear-resistant outer ring layer is arranged on the outer surface of the thrust wheel body, and floating oil seal seats are arranged on the outer sides of the positioning plates. A mounting plate is arranged on the outer side of the floating oil seal seat, fixing shafts are arranged on the upper side and the lower side of the mounting plate, fixing holes are formed in the fixing shafts, a sealing cover is arranged on the outer side of the thrust wheel shaft, a wear-resisting inner ring layer is arranged between the thrust wheel body and the thrust wheel shaft, a floating seal ring is arranged between the positioning plate and the wear-resisting inner ring layer, and an oil injection groove is formed in the middle of the thrust wheel shaft in a penetrating mode. A plurality of oil guide grooves are formed in the oil injection groove; a sealing ring is arranged between the mounting plate and the wear-resistant inner ring layer; the thrust wheel has the advantages of being simple in structure, good in sealing performance, capable of effectively preventing the oil leakage phenomenon and improving the lubricating effect, good in abrasion resistance and toughness and capable of prolonging the service life of the thrust wheel.

Description

TECHNICAL FIELD

[0001] The utility model belongs to excavator accessories field especially relates to a support wheel for engineering machinery excavator. BACKGROUND

[0002] The support wheel is used for supporting the weight of the excavator and rolling on the guide rail (track link) or track plate surface of the track, and is also used for limiting the track to prevent lateral slipping, and forces the track to slide on the ground when the excavator turns. The support wheel is often in mud and dust and bears strong impact, and therefore requires reliable sealing and wear-resistant rim.

[0003] With the development of science and technology and the progress of people's life, people have higher and higher requirements for the convenience of things. The sealing of the previous support wheel of the excavator is not strong, which leads to that people cannot quickly disassemble and assemble the support wheel for use, the support wheel is not easy to replace and is easy to enter dust, affects the service life of the support wheel, and the wear resistance and toughness of the support wheel are poor.

[0004] Based on this, the utility model discloses a support wheel for engineering machinery excavator to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to make the technical problems, technical schemes and advantages of the utility model clearer, specific embodiments will be described in detail below with reference to the drawings.

[0006] The specific technical scheme of the support wheel for engineering machinery excavator of the utility model is as follows:

[0007] A support wheel for engineering machinery excavator, comprising a support wheel body and a support wheel shaft arranged in the support wheel body, the left and right sides of the support wheel body are respectively provided with positioning plates, the outer surface of the support wheel body is provided with a wear-resistant outer ring layer, the positioning plates are provided with floating oil seal seats outward, the outer side of the floating oil seal seat is provided with a mounting plate, the upper and lower sides of the mounting plate are both provided with fixed shafts, the fixed shafts are provided with fixed holes, the outer side of the support wheel shaft is provided with a sealing cover, a wear-resistant inner ring layer is arranged between the support wheel body and the support wheel shaft, a floating seal ring is arranged between the positioning plate and the wear-resistant inner ring layer, an oil injection groove is arranged through the middle of the support wheel shaft, a plurality of oil guide grooves are arranged on the oil injection groove, and a sealing ring is arranged between the mounting plate and the wear-resistant inner ring layer.

[0008] Further, the wear-resistant outer ring layer is sequentially provided with double-layer graphene, chromium metal material and high-manganese steel material from top to bottom.

[0009] Further, the support wheel body is made of titanium alloy material.

[0010] Further, the surface of the positioning plate is coated with a corrosion-resistant material.

[0011] Further, the floating oil seal seat is elliptical.

[0012] Further, the mounting plate is cylindrical.

[0013] Further, the oil guide groove is semicircular.

[0014] Further, the sealing ring is cylindrical.

[0015] The engineering machinery excavator supporting wheel has the following advantages:

[0016] 1. The wear-resistant inner ring layer is arranged between the supporting wheel body and the supporting wheel shaft, thereby improving the wear resistance of the friction between the supporting wheel body and the supporting wheel shaft.

[0017] 2. The wear-resistant outer ring layer is arranged on the upper surface of the supporting wheel body, thereby effectively improving the impact resistance of the supporting wheel body.

[0018] 3. The oil injection groove is arranged through the middle part of the supporting wheel shaft, and a plurality of oil guide grooves are arranged on the oil injection groove, thereby improving the lubrication of the inside of the supporting wheel, reducing the wear of the supporting wheel, and improving the service life of the supporting wheel.

[0019] 4. The floating seal ring is arranged between the wear-resistant inner ring layer and the positioning plate, the floating oil seal seat is arranged outside the positioning plate, and the sealing ring is arranged between the supporting wheel shaft and the mounting plate, thereby solving the lubricating oil leakage of the supporting wheel, achieving the sealing effect of the supporting wheel, and improving the service life of the supporting wheel. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a supporting wheel structure schematic view of the utility model;

[0021] Fig. 2 It is a supporting wheel internal structure schematic view of the utility model;

[0022] Fig. 3 It is a wear-resistant outer ring layer structure schematic view of the utility model;

[0023] The drawing mark: 1, supporting wheel body; 2, supporting wheel shaft; 3, wear-resistant outer ring layer; 4, fixed shaft; 5, fixed hole; 6, floating oil seal seat; 7, positioning plate; 8, sealing ring; 9, sealing cover; 10, mounting plate; 11, oil injection groove; 12, oil guide groove; 13, floating seal ring; 14, wear-resistant inner ring layer; 15, double-layer graphene; 16, chromium metal material; 17, high-meng metal material. DETAILED DESCRIPTION

[0024] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In order to better understand the purpose, structure and function of the present application, the present application will be further described in detail below in combination with the drawings.

[0026] As shown in the drawings, Figs. 1-3 A support wheel for an engineering mechanical excavator, comprising a support wheel body 1 and a support wheel shaft 2, the inside of the support wheel body 1 is fixedly connected with the support wheel shaft 2, wherein the support wheel body 1 and the support wheel shaft 2 are connected by welding, the support wheel body 1 is made of titanium alloy material, the left and right sides of the support wheel body 1 are respectively provided with positioning plates 7, wherein the surface of the positioning plate 7 is coated with a corrosion-resistant material, and the outer surface of the support wheel body 1 is provided with a wear-resistant outer ring layer 3, the positioning plate 7 is provided with a floating oil seal seat 6 outward, wherein the floating oil seal seat 6 is elliptical, the outer side of the floating oil seal seat 6 is provided with a mounting plate 10, wherein the mounting plate 10 is a cylinder, the upper and lower sides of the mounting plate 10 are provided with fixed shafts 4, the fixed shafts 4 are provided with fixed holes 5, the outer side of the support wheel shaft 2 is provided with a sealing cover 9, the support wheel body 1 and the support wheel shaft 2 are provided with a wear-resistant inner ring layer 14, the positioning plate 7 and the wear-resistant inner ring layer 14 are provided with a floating seal ring 13, wherein the middle part of the support wheel shaft 2 is provided with an oil injection groove 11, and a plurality of oil injection grooves 12 are arranged on the oil injection groove 11, wherein the oil injection groove 12 is semicircular, the sealing ring 8 is arranged between the support wheel shaft 2 and the mounting plate 10, and the sealing ring 8 is cylindrical. The excavator support wheel, by arranging the floating seal ring 13 between the positioning plate 7 and the wear-resistant inner ring layer 14, and arranging the sealing ring 8 between the mounting plate 10 and the oil injection groove 11, can effectively prevent foreign matter from entering the inside of the support wheel, by arranging the wear-resistant inner ring layer 14 on the outer surface of the support wheel shaft 2, the wear resistance and pressure resistance of the support wheel can be effectively increased, then by arranging the floating oil seal seat on the outer surface of the positioning plate 7, the leakage of lubricating oil can be effectively prevented, and the sealing effect is achieved, wherein by arranging the wear-resistant outer ring layer 3 on the outer surface of the support wheel body 1, the wear resistance and impact resistance of the support wheel can be effectively increased, thereby solving the problem of poor sealing effect and poor wear resistance of the support wheel affecting the service life.

[0027] In the present application, the wear-resistant outer ring layer 3 is sequentially provided from top to bottom with: double-layer graphene 15, chromium metal material 16 and high-manganese steel material 17, wherein the double-layer graphene 15 has good firmness, the chromium metal material 16 has high hardness, high toughness and corrosion resistance, and the high-manganese steel material 17 has wear resistance and impact resistance.

[0028] The working principle of the utility model: through setting up wear -resisting inner ring layer 14 between support wheel body 1 and support wheel axle 2, improve the wear resistance of friction between support wheel body 1 and support wheel axle 2, set up wear -resisting outer ring layer 3 on support wheel body 1 upper surface, improve the impact resistance of support wheel body 1, wherein the middle part of support wheel axle 2 is set through oil injection groove 11, is set up several oil injection groove 12 on oil injection groove 11, then injects lubricating oil in oil injection groove 11, then lubricating oil carries out lubrication to inner chamber through oil injection groove 12, reduces friction, improves the service life of support wheel, finally sets up floating seal ring 13 between wear -resisting inner ring layer 14 and positioning plate 7, sets up floating oil seal seat 6 on the outside of positioning plate 7, sets up sealing washer 8 between support wheel axle 2 and mounting plate 10, through floating seal ring 13, floating oil seal seat 6 and sealing washer 8 to solve support wheel lubricating oil leakage, reach the sealing effect of support wheel, improve the service life of support wheel.

[0029] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A support wheel for an excavator, comprising a support wheel body (1) and a support wheel shaft (2) arranged inside the support wheel body (1), the support wheel body (1) being provided with a positioning plate (7) on each of the left and right sides thereof, an outer wear-resistant ring layer (3) being arranged on the outer surface of the support wheel body (1), a floating oil seal seat (6) being arranged on the outer side of the positioning plate (7), an installation plate (10) being arranged on the outer side of the floating oil seal seat (6), a fixing shaft (4) being arranged on each of the upper and lower sides of the installation plate (10), a fixing hole (5) being arranged on the fixing shaft (4), and a sealing cover (9) being arranged on the outer side of the support wheel shaft (2), characterized in that, The wear-resistant inner ring layer (14) is arranged between the supporting wheel body (1) and the supporting wheel shaft (2), the floating seal ring (13) is arranged between the positioning plate (7) and the wear-resistant inner ring layer (14), the oil injection groove (11) is arranged in the middle of the supporting wheel shaft (2), the oil injection groove (11) is provided with a plurality of oil guide grooves (12), and the sealing ring (8) is arranged between the supporting wheel shaft (2) and the mounting plate (10).

2. A support wheel for an excavator according to claim 1, characterized in that The wear-resistant outer ring layer (3) is sequentially provided with a double-layer graphene (15), a chromium metal material (16) and a high-manganese steel material (17) from top to bottom.

3. A support wheel for an excavator according to claim 2, characterised in that, The supporting wheel body (1) is made of titanium alloy material.

4. A support wheel for an excavator according to claim 3, characterised in that, The positioning plate (7) is coated with a corrosion-resistant material on the surface.

5. A support wheel for an excavator according to claim 4, characterised in that, The floating oil seal seat (6) is an oval shape.

6. A support wheel for an excavator according to claim 5, characterised in that, The mounting plate (10) is a cylinder.

7. A support wheel for an excavator according to claim 6, characterised in that, The oil guide groove (12) is a semicircle.

8. A support wheel for an excavator according to claim 7, characterised in that, The sealing ring (8) is a cylinder.

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