Wet-type drive axle wheel edge dustproof structure of loading machine

Abstract

The utility model discloses a wheel edge dustproof structure of a wet type drive axle of a loading machine. The wheel edge dustproof structure comprises a supporting shaft, a bearing, a wheel shell, a shaft sleeve, an oil seal, a bolt, a first dustproof cover and a second dustproof cover. The bearing is assembled on the wheel shell and limits the shaft sleeve arranged on the supporting shaft in a sleeving mode. The oil seal is assembled on the shaft sleeve and makes contact with the wheel shell to form sealing. The first dustproof cover is fixed on the wheel shell through a bolt and covers most of the exposed oil seal, the second dustproof cover is fixed on the supporting shaft through a bolt, the bending position of the lower end of the second dustproof cover is buckled with the bending position of the upper end of the first dustproof cover, and the gap between the buckling positions of the first dustproof cover and the second dustproof cover is 0.5 mm. The oil seal is simple and compact in structure, convenient and efficient to assemble and good in dustproof effect, and solves the problem that when a loader works in the prior art, an oil seal dustproof lip is not broken and rubbed with sediment particles to cause abrasion, the oil seal is damaged, and oil leaks from the wheel edge.

Description

Technical Field

[0001] The utility model relates to the technical field of a wheel edge assembly of a wet drive axle of a loader, in particular to a dustproof structure of a wheel edge of a wet drive axle of a loader. Background Art

[0002] Wheel loaders in the construction machinery industry often go into mines or into water for operations. Compared with dry drive axles, wet drive axles lack brake discs, which makes it easier for large amounts of sand and mud particles to come into contact with the wheel side oil seals. When the loader is operating, the wheel side oil seals continue to rotate, causing the dustproof lip of the oil seals to constantly rub against sand and other particles, causing wear and tear, which damages the oil seals and causes oil leakage on the wheel side, increasing maintenance costs. Summary of the invention

[0003] The utility model aims to solve the above defects and provide a wheel dustproof structure for a wet drive axle of a loader with a simple and compact structure, convenient and efficient assembly and good dustproof effect, so as to solve the problem that the dustproof lip of the oil seal constantly rubs against the mud and sand particles during the operation of the loader in the prior art, causing wear and damage to the oil seal, resulting in oil leakage on the wheel side.

[0004] To achieve the above purpose, the wheel side dustproof structure of the wet drive axle of the loader of the utility model comprises a support shaft 1, a bearing 2, a wheel housing 3, a bushing 4, an oil seal 5, a bolt 6, a dust cover 1 7 and a dust cover 2 8; the bearing 2 is assembled on the wheel housing 3 and limits the bushing 4 sleeved on the support shaft 1; the oil seal 5 is assembled on the bushing 4 and contacts with the wheel housing 3 to form a seal; the dust cover 1 7 is fixed to the wheel housing 3 by bolts 6 and covers most of the exposed oil seal 5; the dust cover 2 8 is fixed to the support shaft 1 by bolts 6, and the bending part of the lower end thereof is interlocked with the bending part of the upper end of the dust cover 1 7.

[0005] The gap between the dust cover 1 7 and the dust cover 2 8 where they are buckled is 0.5 mm.

[0006] The utility model loader wet drive axle wheel side dustproof structure adopts two interlocking dustproof covers, and has the following technical characteristics and beneficial effects:

[0007] 1. The dust cover 2 8 fixed on the support shaft 1 isolates a large amount of particles, which plays the first dust-proof effect; the dust cover 1 7 is fixed on the wheel shell 3 and interlocked with the dust cover 2 8, and the gap between the two dust covers is only 0.5mm, which plays the second dust-proof effect; the dust cover 1 7 on the wheel shell 3 has covered most of the exposed oil seal 5, so it plays the third dust-proof effect. The three-layer dust-proof can effectively isolate particles, solving the problem of the prior art that the dust-proof lip of the oil seal is constantly rubbed against the sand particles during the operation of the loader, causing wear and tear, which damages the oil seal and causes oil leakage on the wheel side.

[0008] 2. Simple and compact structure, convenient and efficient assembly, good dustproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The utility model is a main cross-sectional structural schematic diagram of a dustproof structure of a wet drive axle wheel side of a loader.

[0010] Figure 2 yes Figure 1 Schematic diagram of the partial enlarged structure of the middle dust cover area.

[0011] Figure numerals: support shaft 1, bearing 2, wheel housing 3, shaft sleeve 4, oil seal 5, bolt 6, dust cover one 7, dust cover two 8. DETAILED DESCRIPTION

[0012] The specific implementation of the wet drive axle wheel edge dust prevention structure of the loader of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Figure 1-Figure 2 As shown, the dustproof structure of the wheel side of the wet drive axle of the loader of the utility model comprises a support shaft 1, a bearing 2, a wheel housing 3, a bushing 4, an oil seal 5, a bolt 6, a dust cover 1 7, and a dust cover 2 8; the bearing 2 is assembled on the wheel housing 3 and limits the bushing 4 sleeved on the support shaft 1; the oil seal 5 is assembled on the bushing 4 and contacts with the wheel housing 3 to form a seal; the dust cover 1 7 is fixed to the wheel housing 3 by bolts 6 and covers most of the exposed oil seal 5, and the dust cover 2 8 is fixed to the support shaft 1 by bolts 6, and the bending part of the lower end thereof is interlocked with the bending part of the upper end of the dust cover 1 7, and the gap between the two at the interlocking part is 0.5 mm.

[0014] The above-mentioned wheel dustproof structure of the wet drive axle of the loader can effectively prevent the wear of particles and oil seals by adopting two interlocking dust covers. When the loader is working, the particles will be blocked by the dust cover 2 8 first, and the remaining particles will be blocked by the connection of the two interlocking dust covers. Since the dust cover 1 7 has covered most of the exposed oil seal, the oil seal wear and oil leakage failure rate can be effectively reduced, greatly improving product quality and reliability, and reducing maintenance costs, thereby solving the problem of the prior art that the dustproof lip of the oil seal constantly rubs against the sand particles during the operation of the loader, causing wear and damage to the oil seal, resulting in oil leakage on the wheel side.

Claims

1. A wheel dustproof structure for a wet drive axle of a loader, comprising a support shaft (1), a bearing (2), a wheel housing (3), a shaft sleeve (4), an oil seal (5) and a bolt (6); the bearing (2) is mounted on the wheel housing (3) and limits the position of the shaft sleeve (4) sleeved on the support shaft (1); the oil seal (5) is mounted on the shaft sleeve (4) and contacts with the wheel housing (3) to form a seal; the characteristics are: It also includes a dust cover 1 (7) and a dust cover 2 (8); the dust cover 1 (7) is fixed to the wheel housing (3) by bolts (6) and covers most of the exposed oil seal (5); the dust cover 2 (8) is fixed to the support shaft (1) by bolts (6), and the lower end bend of the dust cover 1 (7) is interlocked with the upper end bend of the dust cover 1 (7).

2. The wheel dust prevention structure of the wet drive axle of a loader as claimed in claim 1, characterized in that: The gap between the first dust cover (7) and the second dust cover (8) where they are locked is 0.5 mm.

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