CN211820462U - 3T wheel loader gearbox clutch hub assembly structure - Google Patents
3T wheel loader gearbox clutch hub assembly structure Download PDFInfo
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- CN211820462U CN211820462U CN201922437328.0U CN201922437328U CN211820462U CN 211820462 U CN211820462 U CN 211820462U CN 201922437328 U CN201922437328 U CN 201922437328U CN 211820462 U CN211820462 U CN 211820462U
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- clutch
- sealing ring
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- clutch shell
- hole
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- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000003466 welding Methods 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 21
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a 3T wheel loader gearbox clutch hub assembly structure, which comprises a clutch gear ring, a steel ball, an end cap, a clutch shell, an outer sealing ring, an inner sealing ring, a welding seam, a piston and an oil drainage hole; an oil drain hole is formed in the clutch shell, a steel ball is filled in the oil drain hole, and a plug is pressed in the oil drain hole; the clutch gear ring is matched with the clutch shell through a spigot and then welded to form weld joint connection, so that the oil drainage hole is far away from the weld joint to form a hole ellipse; the inner sealing ring is assembled on the clutch shell, the piston assembled with the outer sealing ring is pressed into the clutch shell, so that the contact positions of the inner sealing ring and the outer sealing ring are arranged on the clutch shell, and the sealing coaxiality is ensured. The utility model provides a current clutch hub body assembly cause the clutch subassembly oil pressure to be low, the vice wearing and tearing that skids of friction cause the unable problem of normally working of clutch subassembly because of structural design is unreasonable.
Description
Technical Field
The utility model relates to a clutch hub body assembly in wheel loader gearbox, concretely relates to 3T wheel loader gearbox clutch hub body assembly structure.
Background
A fixed-shaft type gearbox is commonly adopted in domestic 3T wheel loaders, wherein a gear 428 type gearbox is used most widely, and the gearbox becomes the first choice of various main engine plants due to the advantages of compact structure, low failure rate and high cost performance. The gearbox of the type consists of three clutch assemblies, and 2 forward gears and 1 reverse gear are realized. The clutch hub assembly is a key component of the clutch assembly and the design thereof is of critical importance. The existing clutch hub assembly has the following defects in design: 1. the contact position of the outer sealing ring of the piston is on the gear ring of the clutch, and the inner sealing ring of the piston is on the clutch shell, so that the coaxiality deviation exists between the inner sealing ring and the outer sealing ring, and the piston is eccentric when moving; 2. the clutch hub assembly is formed by welding a clutch gear ring and a clutch shell, two parts are welded, and a welding seam is positioned at a sealing position, so that leakage is easy to occur, and the phenomenon of low gear pressure is caused; 3. in order to ensure the normal work of the clutch assembly, an oil drainage hole is needed to be processed on the clutch shell so as to facilitate the pressure relief of hydraulic oil, but the oil drainage hole is too close to a welding seam, and the oil drainage hole is easy to deform after welding to cause hole ellipse, so that the leakage occurs after the plug is assembled. The problems can cause the oil pressure of the clutch assembly to be low, and the friction pair to slip and wear, so that the clutch assembly cannot work normally.
Disclosure of Invention
The utility model aims at overcoming above-mentioned defect, provide a simple structure compactness, preparation and maintenance cost are low, use safe and reliable's 3T wheel loader gearbox clutch hub body assembly structure to it is low to solve current clutch hub body assembly because of structural design unreasonable clutch assembly oil pressure that causes, and the vice wearing and tearing that skids of friction causes the unable problem of normally working of clutch assembly.
In order to realize the purpose, the clutch hub body assembly structure of the gearbox of the 3T wheel loader comprises a clutch gear ring, a steel ball, an end cap, a clutch shell, an outer sealing ring, an inner sealing ring, a welding line, a piston and an oil drainage hole; an oil drain hole is formed in the clutch shell, a steel ball is filled in the oil drain hole, and a plug is pressed in the oil drain hole; the clutch gear ring is matched with the clutch shell through a spigot and then welded to form weld joint connection, so that the oil drainage hole is far away from the weld joint to form a hole ellipse; the inner sealing ring is assembled on the clutch shell, the piston assembled with the outer sealing ring is pressed into the clutch shell, so that the contact positions of the inner sealing ring and the outer sealing ring are arranged on the clutch shell, and the sealing coaxiality is ensured.
The 3T wheel loader gearbox clutch hub body assembly structure with the structure has the following technical characteristics and beneficial effects:
1. the contact positions of the inner sealing ring and the outer sealing ring are arranged on the clutch shell, the sealing coaxiality is good, and the eccentricity of the piston during movement is avoided;
2. after the position of the welding seam is adjusted, the oil drainage hole in the clutch shell is far away from the welding seam, and the problem of leakage caused by the fact that the oil drainage hole is easily deformed into a hole ellipse after welding is solved;
3. after the position of the welding seam is improved, the welding seam only plays a role in connection, and does not need to bear a sealing effect, so that the problem of welding seam leakage is solved;
4. the improved tooth profile in the clutch gear ring can be processed by tooth broaching, so that the tooth profile has higher precision, high processing efficiency and low cost.
The utility model discloses 3T wheel loader gearbox clutch hub body assembly structure is structural at present clutch hub body assembly, under the condition that keeps clutch hub body assembly interchangeability, through adjustment clutch ring gear and clutch housing welded position, simultaneously with in the piston, external seal ring contact position all establishes on clutch housing, it is unreasonable to cause the clutch subassembly oil pressure to be low because of present clutch hub body assembly structural design, the vice wearing and tearing that skids of friction, lead to the unable normal work's of clutch subassembly problem, gearbox reliability and life have been improved, the maintenance cost of equipment has been reduced.
Drawings
FIG. 1 is a schematic illustration of a prior art 3T wheel loader transmission clutch hub assembly construction.
Fig. 2 is a schematic structural view of a clutch hub assembly of the transmission of the 3T wheel loader of the present invention.
Reference numerals: the clutch comprises a clutch gear ring 1, a steel ball 2, a plug 3, a clutch shell 4, an outer sealing ring 5, an inner sealing ring 6, a welding line 7, a piston 8 and an oil drainage hole 9.
Detailed Description
The structure of the clutch hub assembly of the 3T wheel loader transmission according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2, the clutch hub assembly structure of the gearbox of the 3T wheel loader of the present invention comprises a clutch gear ring 1, a steel ball 2, a plug 3, a clutch housing 4, an outer sealing ring 5, an inner sealing ring 6, a welding seam 7, a piston 8, and an oil drainage hole 9; an oil drain hole 9 is formed in the clutch shell 4, a steel ball 2 is filled in the oil drain hole, and meanwhile, the steel ball is pressed into the plug 3; the clutch gear ring 1 is matched with the clutch shell 4 through a spigot and then is connected with the clutch shell through a welding seam 7 formed by welding, so that the oil drainage hole is far away from the welding seam to form a hole ellipse; the inner sealing ring 6 is assembled on the clutch housing 4, the piston 8 assembled with the outer sealing ring 5 is pressed into the clutch housing 4, so that the contact positions of the inner sealing ring and the outer sealing ring are arranged on the clutch housing, and the sealing coaxiality is ensured.
Because the sealing of the piston 8 is arranged on the clutch shell 4, the coaxiality of the piston during movement can be ensured, and the eccentricity is avoided; the relative position of the welding seam 7 and the oil drainage hole 9 is far away, so that the oil drainage hole is not influenced by deformation after welding, the sealing requirement of the welding seam 7 is not required to be emphasized, and the welding seam only plays a role in connecting the clutch gear ring 1 and the clutch shell 4; in addition, due to the optimization of the structure, the clutch gear ring 1 can be processed by tooth broaching, so that the tooth profile precision is higher, the efficiency is high, and the cost is low.
The utility model discloses 3T wheel loader gearbox clutch hub body assembly structure is structural at present clutch hub body assembly, under the condition that keeps clutch hub body assembly interchangeability, through adjustment clutch ring gear and clutch housing welded position, simultaneously with in the piston, external seal ring contact position all establishes on clutch housing, it is unreasonable to cause the clutch subassembly oil pressure to be low because of present clutch hub body assembly structural design, the vice wearing and tearing that skids of friction, lead to the unable normal work's of clutch subassembly problem, gearbox reliability and life have been improved, the maintenance cost of equipment has been reduced.
Claims (1)
1. A3T wheel loader gearbox clutch hub body assembly structure comprises a clutch gear ring, a steel ball, a plug, a clutch shell, an outer sealing ring, an inner sealing ring, a welding line, a piston and an oil drainage hole; an oil drain hole is formed in the clutch shell, a steel ball is filled in the oil drain hole, and a plug is pressed in the oil drain hole; the method is characterized in that: the clutch gear ring is matched with the clutch shell through a spigot and then welded to form weld joint connection, so that the oil drainage hole is far away from the weld joint to form a hole ellipse; the inner sealing ring is assembled on the clutch shell, the piston assembled with the outer sealing ring is pressed into the clutch shell, so that the contact positions of the inner sealing ring and the outer sealing ring are arranged on the clutch shell, and the sealing coaxiality is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922437328.0U CN211820462U (en) | 2019-12-30 | 2019-12-30 | 3T wheel loader gearbox clutch hub assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922437328.0U CN211820462U (en) | 2019-12-30 | 2019-12-30 | 3T wheel loader gearbox clutch hub assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211820462U true CN211820462U (en) | 2020-10-30 |
Family
ID=73036678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922437328.0U Active CN211820462U (en) | 2019-12-30 | 2019-12-30 | 3T wheel loader gearbox clutch hub assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211820462U (en) |
-
2019
- 2019-12-30 CN CN201922437328.0U patent/CN211820462U/en active Active
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