CN218197816U - Balance shaft end bearing locking device for dump truck - Google Patents
Balance shaft end bearing locking device for dump truck Download PDFInfo
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- CN218197816U CN218197816U CN202222616265.7U CN202222616265U CN218197816U CN 218197816 U CN218197816 U CN 218197816U CN 202222616265 U CN202222616265 U CN 202222616265U CN 218197816 U CN218197816 U CN 218197816U
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- balance shaft
- bearing
- pressing block
- ring
- locking device
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Abstract
The utility model discloses a balance shaft end bearing locking device for a dump truck, which comprises a balance shaft, a balance shaft bracket, a balance shaft shell, an inner bearing, an outer bearing, a spacing sleeve, a spacing ring and a bearing pressing block, wherein the center of the end part of the balance shaft is provided with a connecting internal thread, and the end surface of the balance shaft is evenly provided with six fastening connection threaded holes; the bearing pressing block is a T-shaped cylinder, and is provided with a connecting external thread and six long arc-shaped connecting holes; the balance shaft is arranged on the balance shaft support, the end part of the balance shaft is positioned in the balance shaft shell, the spacer ring is arranged on the balance shaft, the end surface of the spacer ring is abutted against the balance shaft support, the inner bearing, the spacer sleeve and the outer bearing are sequentially arranged on the balance shaft, the bearing pressing block is used for pressing the outer bearing, is connected with the inner thread through the connecting external thread and is fastened with the balance shaft through the fastening piece group of the bearing pressing block. The utility model discloses ensured bearing briquetting and tip bearing's positional stability, reduced the fault rate of balance shaft bearing, ensured the vehicle safety of traveling.
Description
Technical Field
The utility model relates to a balance shaft end bearing locking device for dump truck belongs to vehicle chassis suspension technical field.
Background
The core component of the rear balance suspension system of the mining dump truck is a balance shaft assembly, and the mining dump truck is used under severe working conditions such as potholes, uphill and downhill, dirt roads and the like in a mining area all the year round, so that the requirement on the performance of the balance shaft assembly in the rear balance suspension system is high, and the balance shaft assembly bears additional loads under complex working conditions such as vehicle impact, axle distortion and the like besides vertical loads. Traditional tipper balance shaft tip is equipped with the bearing briquetting, the bearing is spacing to be passed through bolt group by the tip bearing briquetting and balance shaft tip screw hole by the tip bearing briquetting and be connected, there is the clearance in fastening connection rear bearing briquetting and balance shaft tip, this structure is when the balance shaft shell bears great axial force and radial force, the bolt fragile of fastening bearing briquetting tip, in order to cause the bearing to damage, balanced axle oil leak scheduling problem, the fault rate is higher always, seriously influence the user and use the rate of attendance.
Disclosure of Invention
The utility model aims to solve the technical problem that the defect to prior art exists provides a balance shaft end bearing locking device for tipper, solves the fragile technical problem of spare parts such as the balance shaft end bearing of tipper.
In order to solve the technical problem, the utility model provides a balance shaft end bearing locking device for a dump truck, which comprises a balance shaft, a balance shaft bracket, a balance shaft shell, an inner bearing, an outer bearing, a spacing sleeve, a spacing ring and a bearing pressing block, wherein the center of the end part of the balance shaft is provided with a connecting internal thread, and the end surface of the balance shaft end bearing locking device is uniformly provided with six fastening connection threaded holes; the bearing pressing block is a T-shaped cylinder, and is provided with a connecting external thread and six long arc-shaped connecting holes; the balance shaft is arranged on the balance shaft support, the end part of the balance shaft is positioned in the balance shaft shell, the spacer ring is arranged on the balance shaft, the end surface of the spacer ring is abutted against the balance shaft support, the inner bearing, the spacer sleeve and the outer bearing are sequentially arranged on the balance shaft, the bearing pressing block is used for pressing the outer bearing, is connected with the inner thread through the connecting external thread and is fastened with the balance shaft through the fastening piece group of the bearing pressing block.
And a sealing ring is arranged between the balance shaft shell and the spacer ring.
And a first radial limiting ring is arranged on the outer side of the shaft end of the balance shaft.
And the root of the bearing pressing block connecting external thread is provided with a radial limiting ring II.
And the bearing pressing block is provided with a matching ring matched with the bearing inner ring and a pressing surface matched with the bearing.
The bearing pressing block is processed by adopting a quenching and tempering heat treatment process.
Has the advantages that: compared with the prior art, the utility model discloses when the balanced axle housing bears great axial force and radial force, bearing briquetting and the threaded connection and the spacing cooperation of balanced axle have ensured bearing briquetting and tip bearing's positional stability, have greatly reduced balanced axle bearing's fault rate, have ensured the vehicle safety of traveling.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the bearing pressing block of the present invention;
fig. 3 is a schematic structural view of the end of the balance shaft of the present invention.
In the figure: 1. a balance shaft support; 2. a balance shaft; 3. a balance shaft housing; 4. a spacer ring; 5. a spacer sleeve; 6. a seal ring; 7. an inner bearing; 8. an outer bearing; 9. bearing pressing blocks; 10. a fastener group; 21. connecting the internal threads; 22. a first radial limiting ring; 23. fastening and connecting the threaded holes; 91. connecting external threads; 92. a second radial limiting ring; 93. matching rings; 94. a compression surface; 95. and a long arc-shaped connecting hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the utility model provides a balance shaft end bearing locking device for a dump truck, which comprises a balance shaft 2, a balance shaft bracket 1, a balance shaft shell 3, an inner bearing 7, an outer bearing 8, a spacing sleeve 5, a spacing ring 4 and a bearing pressing block 9, wherein the center of the end part of the balance shaft 2 is provided with a connecting internal thread 21, and six fastening connection threaded holes 23 are uniformly distributed on the end surface of the balance shaft; the bearing pressing block 9 is a T-shaped cylinder, and is provided with a connecting external thread 91 and six long arc-shaped connecting holes 95; the balance shaft 2 is arranged on the balance shaft support 1, the end part of the balance shaft is positioned in the balance shaft shell 3, the spacer ring 4 is arranged on the balance shaft 2, the end surface of the spacer ring is abutted against the balance shaft support 1, the inner bearing 7, the spacer sleeve 5 and the outer bearing 8 are sequentially arranged on the balance shaft 2, the bearing pressing block 9 is used for pressing the outer bearing 8, is connected with the connecting inner thread 21 through the connecting outer thread 91 and is fastened with the balance shaft 2 through the bearing pressing block fastening piece group 10; during installation: firstly, positioning and mounting a balance shaft 2 and a balance shaft bracket 1; then the spacer ring 4 is arranged on the balance shaft 2, and then the inner ring of the inner bearing 7 and the spacer sleeve 5 are sequentially arranged; then, the outer rings of the inner bearing 7 and the outer bearing 8 are arranged on the balance shaft shell 3, and the sealing ring 6 is arranged on the balance shaft shell 3; then the well-packaged balance shaft shell 3 is arranged on the balance shaft 2; then the inner ring of the outer bearing 8 is mounted; finally, the bearing pressing block 9 is connected with the internal connecting thread 21 at the end part of the balance shaft through the external connecting thread 91; the shaft pressing surface 94 of the bearing pressing block 9 is enabled to press the outer end surface of the inner ring of the outer bearing 8, then the fastening piece group 10 of the bearing pressing block is installed, and after fastening is in place, the balance shaft shell 3 can rotate freely by hand.
A sealing ring 6 is arranged between the balance shaft shell 3 and the spacer ring 4, so that external dust is prevented from entering the cavity of the balance shaft shell 3, and a sealing effect is achieved.
The outer side of the shaft end of the balance shaft 2 is provided with a first radial limiting ring 22 which is matched with a radial limiting ring 92 on the bearing pressing block 9, and the bearing pressing block 9 plays a role in radial limiting when bearing radial force is borne, so that the connection reliability of the bearing pressing block 9 and the external thread 91 is protected.
The root of the external thread 91 is connected with the bearing pressing block 9, a second radial limiting ring 92 is arranged at the root of the external thread 91, the second radial limiting ring is matched with a first radial limiting ring 22 arranged at the outer side of the shaft end of the balance shaft 2, and the bearing pressing block 9 plays a role in radial limiting when bearing radial force, so that the connection reliability of the external thread 91 connected with the bearing pressing block 9 is protected.
The bearing pressing block 9 is provided with a matching ring 93 matched with the bearing inner ring and a pressing surface 94 matched with the bearing, the matching ring 93 plays a role in radial positioning of the bearing 8, and the pressing surface 94 plays a role in axial positioning and pressing of the bearing 8.
The bearing pressing block 9 is processed by adopting a quenching and tempering heat treatment process, the hardness of the bearing pressing block is adjusted, and the bearing pressing block is prevented from being crushed when the fastener group 10 is screwed down.
Use the utility model discloses a locking method, the step is as follows:
1) Firstly, positioning and mounting a balance shaft 2 and a balance shaft bracket 1;
2) Installing a spacer ring 4 on the balance shaft 2, and then sequentially installing an inner ring of an inner bearing 7 and a spacer sleeve 5;
3) Subpackaging the balance shaft housing 3: the outer rings of the inner bearing 7 and the outer bearing 8 are arranged on the balance shaft shell 3, and the sealing ring 6 is arranged on the balance shaft shell 3
4) Mounting the split balance shaft shell 3 on the balance shaft 2;
5) Then the inner ring of the outer bearing 8 is mounted;
6) Mounting a bearing block 9: the bearing pressing block 9 is firstly connected with the internal connecting thread 21 at the end part of the balance shaft through the external connecting thread 91; the shaft pressing surface 94 of the bearing press block 9 is pressed on the outer end surface of the inner ring of the outer bearing 8, then the bearing press block fastening piece group 10 is installed, and the balance shaft shell 3 can freely rotate by hand after being fastened in place.
The utility model provides a spare parts fragile technical problem such as tipper balance shaft tip bearing, when the balance shaft shell bears great axial force and radial force, bearing briquetting and the threaded connection and the spacing cooperation of balance shaft have ensured bearing briquetting and tip bearing's positional stability, have greatly reduced the fault rate of balance shaft bearing.
The above embodiments of the present invention are merely examples, not the only ones, and all changes within the scope of the present invention or the same range of the present invention are all surrounded by the present invention.
Claims (6)
1. The utility model provides a balance shaft tip bearing locking device for tipper which characterized in that: the balance shaft comprises a balance shaft (2), a balance shaft support (1), a balance shaft shell (3), an inner bearing (7), an outer bearing (8), a spacing sleeve (5), a spacing ring (4) and a bearing pressing block (9), wherein the center of the end part of the balance shaft (2) is provided with a connecting internal thread (21), and the end surface of the balance shaft is uniformly provided with six fastening connection threaded holes (23); the bearing pressing block (9) is a T-shaped cylinder, and is provided with a connecting external thread (91) and six long arc-shaped connecting holes (95); balance shaft (2) set up on balance shaft support (1), and its tip is located balance shaft shell (3), and spacer ring (4) set up on balance shaft (2), and its terminal surface conflicts balance shaft support (1), inner bearing (7), spacer sleeve (5) and outer bearing (8) set gradually on balance shaft (2), and bearing briquetting (9) compress tightly outer bearing (8), connect through connecting external screw thread (91) and connecting internal thread (21) to fastener group (10) through the bearing briquetting fastens with balance shaft (2).
2. The balance shaft end bearing locking device for the dump truck according to claim 1, wherein: and a sealing ring (6) is arranged between the balance shaft shell (3) and the spacer ring (4).
3. The balance shaft end bearing locking device for the dump truck according to claim 1, wherein: and a first radial limiting ring (22) is arranged on the outer side of the shaft end of the balance shaft (2).
4. The balance shaft end bearing locking device for the dump truck according to claim 1, wherein: and a second radial limiting ring (92) is arranged at the root of the external thread (91) connected with the bearing pressing block (9).
5. The balance shaft end bearing locking device for the dump truck according to claim 1, wherein: and the bearing pressing block (9) is provided with a matching ring (93) matched with the bearing inner ring and a pressing surface (94) matched with the bearing.
6. The balance shaft end bearing locking device for the dump truck according to any one of claims 1 to 5, wherein: the bearing pressing block (9) is processed by adopting a quenching and tempering heat treatment process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222616265.7U CN218197816U (en) | 2022-09-29 | 2022-09-29 | Balance shaft end bearing locking device for dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222616265.7U CN218197816U (en) | 2022-09-29 | 2022-09-29 | Balance shaft end bearing locking device for dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218197816U true CN218197816U (en) | 2023-01-03 |
Family
ID=84640145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222616265.7U Active CN218197816U (en) | 2022-09-29 | 2022-09-29 | Balance shaft end bearing locking device for dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218197816U (en) |
-
2022
- 2022-09-29 CN CN202222616265.7U patent/CN218197816U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230515 Address after: No. 583, Jiyan Road, Huaiyin District, Jinan City, Shandong Province, 250117 Patentee after: China National Heavy Duty Truck Group Ji'nan Special Vehicle Co.,Ltd. Address before: Shengjing tangwangshan Road North Panwang Road West, Zhangqiu District, Jinan City, Shandong Province 250200 Patentee before: China National Heavy Duty Truck Group Jinan Power Co.,Ltd. |
|
| TR01 | Transfer of patent right |