CN216407626U - Herringbone gear transmission speed reducer - Google Patents
Herringbone gear transmission speed reducer Download PDFInfo
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- CN216407626U CN216407626U CN202122491329.0U CN202122491329U CN216407626U CN 216407626 U CN216407626 U CN 216407626U CN 202122491329 U CN202122491329 U CN 202122491329U CN 216407626 U CN216407626 U CN 216407626U
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- wheel shaft
- herringbone gear
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Abstract
The utility model discloses a herringbone gear transmission speed reducer which comprises a shell, wherein a first shaft hole and a second shaft hole which are parallel to each other are arranged in the shell, a base which is integrated with the shell is arranged at the bottom of the shell, a driving wheel shaft and a driven wheel shaft are respectively positioned in the first shaft hole and the second shaft hole, a driving herringbone gear and a driven herringbone gear which is larger than the driving herringbone gear in diameter are respectively arranged on the driving wheel shaft and the driven wheel shaft, and the driving herringbone gear is meshed with the driven herringbone gear. And bearings are arranged between the driving wheel shaft and the first shaft hole and between the driven wheel shaft and the second shaft hole, shock absorption pads are arranged between the bearings and the first shaft hole and the second shaft hole, and the driving wheel shaft is in transmission connection with the driving device. The herringbone gear is adopted for transmission, the superposition coefficient of the gears is large when the gears are meshed, the transmission is stable, the strength of the gears is high, the herringbone gear is suitable for heavy load, and no axial force is generated in the meshing process; and the whole speed reducer has simple structure and is more convenient to install and manufacture compared with a speed reducer driven by a worm gear.
Description
Technical Field
The utility model relates to a speed reducer, in particular to a speed reducer for carrying out speed change by utilizing herringbone gear transmission.
Background
The speed reducer is a component consisting of gear drive, worm drive and gear-worm drive which are enclosed in a rigid shell, is commonly used as a speed reduction transmission device between a prime mover and a working machine, plays a role in matching rotating speed and transmitting torque between the prime mover and the working machine or an actuating mechanism, and is widely applied to modern machinery.
However, the spur gears adopted by most of the current speed reducers are engaged and withdrawn simultaneously along the tooth width, so that impact, vibration and noise are easily generated; the cylindrical helical gear has the advantages of large coincidence coefficient, stable transmission and high gear strength, and is suitable for heavy load, but compared with straight teeth, the helical teeth can generate axial force in the meshing process, and great adverse effect is caused on the use of the speed reducer. In addition, the sealing and heat dissipation effects of some speed reducers are not good, and the operation of gear pairs is adversely affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, provides a speed reducer for realizing speed change by utilizing herringbone gear transmission, reasonably adjusts the structure of the speed reducer to optimize the sealing and heat dissipation effects of the speed reducer, and can effectively and reasonably overcome the problems caused by the adoption of the gear transmission in the speed reducer.
In order to achieve the purpose, the technical scheme of the utility model is to provide a herringbone gear transmission speed reducer which comprises a shell 1, wherein a first shaft hole and a second shaft hole which are parallel to each other are arranged in the shell 1, a base 2 which is integrated with the shell is arranged at the bottom of the shell, a driving wheel shaft 3 and a driven wheel shaft 4 are respectively positioned in the first shaft hole and the second shaft hole, a driving herringbone gear 5 and a driven herringbone gear 6 which is larger than the driving herringbone gear in diameter are respectively arranged on the driving wheel shaft 3 and the driven wheel shaft 4, and the driving herringbone gear 5 is meshed with the driven herringbone gear 6. And bearings are arranged between the driving wheel shaft 3 and the first shaft hole 8 and between the driven wheel shaft 4 and the second shaft hole 9, shock absorption pads are arranged between the bearings and the first shaft hole and the second shaft hole, and the driving wheel shaft is in transmission connection with the driving device 7. Due to the fact that the herringbone gears are used for transmission, when the gears are meshed, the superposition coefficient is large, transmission is stable, the strength of the gears is high, the herringbone gears are suitable for heavy load, and axial force cannot be generated in the meshing process; and the whole speed reducer has simple structure and is more convenient to install and manufacture compared with a speed reducer driven by a worm gear.
As a further improvement of the present invention, the first shaft hole 8 is a blind hole, one end of the driving wheel shaft 3 extends into the first shaft hole 8 and is provided with a shoulder adapted to the first shaft hole 8, a sliding bearing 19 or a needle bearing is arranged between the first shaft hole 8 and the driving wheel shaft 3, the other end of the driving wheel shaft is provided with a rolling bearing and is provided with a motor hole on an end face, the driving device is a motor, and an output shaft of the motor is connected with the motor hole. Adopt slide bearing to make the driving wheel axle rotate nimble and steady, the shaft hole adopts the blind hole to strengthen the leakproofness of casing 1, and the motor hole makes motor output shaft and driving wheel axle 3 be connected more convenient, and the connection scheme of connecting hole can also be replaced by the keyway connection.
As a further improvement of the utility model, the driven wheel shaft 4 is provided with a sliding bearing 19 or a needle bearing respectively at two end surfaces of the second shaft hole 9 close to the second shaft hole, and a floating oil seal is arranged at one end of the second shaft hole on the same side with the blind hole. The sliding bearing enables the driving wheel shaft to rotate flexibly and stably, and the floating oil seal greatly improves the sealing performance of the second shaft hole.
As a further improvement of the utility model, the end parts of the first shaft hole and the second shaft hole, which are positioned opposite to the floating oil seal 10, are provided with rotary shaft lip-shaped sealing rings 11. The lip-shaped sealing ring of the rotating shaft enables the sealing performance of the first shaft hole and the second shaft hole to be better.
As a further improvement of the utility model, two ends of the shell are provided with dust covers 12 which are detachably connected with the shell, and a damping gasket 14 is arranged below the base, so that the dust covers can prevent dust from entering the interior of the speed reducer from the shaft hole to pollute lubricating oil, and the lubricating effect of a gear pair and a bearing is poor; the shock absorption pad 14 can absorb part of the shock of the speed reducer, and the speed reducer is ensured to run more stably.
As a further improvement of the utility model, the driving wheel shaft 3 and the driven wheel shaft 4 are hollow shafts, and a plurality of connecting holes 13 which are uniformly distributed in the circumferential direction are arranged at two ends of the driven wheel shaft. The hollow shaft can reduce the dead weight of the speed reducer; the connecting holes uniformly distributed in the circumferential direction of the driven wheel shaft are convenient for outputting torque to the working shaft, and the connecting mode is simplified.
As a further improvement of the utility model, the base is provided with an oil sump 20 at the top, which is provided with a baffle 18 integral with the sump adjacent the motor side. By adopting the structure, the gear pair and the bearing can be lubricated more conveniently, and the lubricating effect is better.
As a further improvement of the present invention, the two side faces of the housing perpendicular to the driving wheel shaft are provided with cover plates 15, the cover plates are provided with holes for the driving wheel shaft and the driven wheel shaft to pass through, and the cover plates are matched with the shape of the housing 1 and detachably connected to the base. The cover plate can protect operators.
As a further improvement of the utility model, a sound-absorbing material layer 16 is provided on the side of the cover plate facing the housing. The sound absorbing material layer 16 can reduce a part of noise generated during operation.
As a further improvement of the utility model, the base is provided with support frames 17 positioned at two ends of the driven wheel shaft, two ends of the driven wheel shaft penetrate through the support frames, the support frames are provided with bearings matched with the driven wheel shaft, the support frames are detachably fixed on the base, and a damping gasket 14 is arranged between the support frames and the base. The support frame can make driven wheel axle more steady in the rotation process, and shock attenuation gasket 14 can absorb the vibrations of partial reduction gear, guarantees that the reduction gear is more steady when moving.
The utility model has the advantages and beneficial effects that:
the herringbone gear is adopted for transmission, the superposition coefficient of the gears is large when the gears are meshed, the transmission is stable, the strength of the gears is high, the herringbone gear is suitable for heavy load, and no axial force is generated in the meshing process; the whole speed reducer is simple in structure and more convenient to install and manufacture compared with a speed reducer driven by a worm gear; the sliding bearing enables the driving wheel shaft to rotate flexibly and stably, and the floating oil seal greatly improves the sealing performance of the second shaft hole; the lip-shaped sealing ring of the rotating shaft enables the sealing performance of the first shaft hole and the second shaft hole to be better; the shock absorption gasket can absorb part of the shock of the speed reducer, so that the speed reducer is more stable in operation; connecting holes are uniformly distributed in the circumferential direction of the driven wheel shaft, so that torque is output to the working shaft conveniently, and the connecting mode is simplified; the sound absorption material layer can reduce part of noise generated in operation; the support frame can make driven wheel axle more steady in the rotation process.
Drawings
FIG. 1 is a schematic illustration of an embodiment 1 of a herringbone gear reduction;
FIG. 2 is a schematic illustration of embodiment 2 of a herringbone gear reduction;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic illustration of embodiment 3 of a herringbone gear reduction.
In the figure: 1-shell 2-base 3-driving axle 4-driven axle 5-driving herringbone gear 6-driven herringbone gear 7-driving device 8-shaft hole one 9-shaft hole two 10-floating oil seal 11-rotating shaft lip seal ring 12-dustproof cover 13-connecting hole 14-damping gasket 15-cover plate 16-sound absorbing material layer 17-support frame 18-baffle plate 19-sliding bearing 20-oil groove
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby. Parts are not shown for ease of illustration.
Example 1:
as shown in figure 1, the driving herringbone gear transmission device comprises a shell 1, wherein a first shaft hole and a second shaft hole which are parallel to each other are arranged in the shell 1, a base 2 which is integrated with the shell is arranged at the bottom of the shell, a driving wheel shaft 3 and a driven wheel shaft 4 are respectively positioned in the first shaft hole and the second shaft hole, a driving herringbone gear 5 and a driven herringbone gear 6 which is larger than the driving herringbone gear in diameter are respectively arranged on the driving wheel shaft 3 and the driven wheel shaft 4, and the driving herringbone gear 5 is meshed with the driven herringbone gear 6. And bearings are arranged between the driving wheel shaft and the first shaft hole 8 and between the driven wheel shaft and the second shaft hole, damping pads are arranged between the bearings and the first shaft hole 8 and the second shaft hole 9, and the driving wheel shaft 3 is in transmission connection with the driving device 7. The first shaft hole 8 is a blind hole, one end of the driving wheel shaft 3 extends into the first shaft hole 8 and is provided with a shaft shoulder matched with the first shaft hole 8, a sliding bearing 19 or a needle bearing is arranged between the first shaft hole 8 and the driving wheel shaft 3, the other end of the driving wheel shaft is provided with a rolling bearing, a motor hole is formed in the end face of the rolling bearing, the driving device is a motor, and an output shaft of the motor is connected with the motor hole. And two end faces of the driven wheel shaft 4, which are close to the second shaft hole, in the second shaft hole are respectively provided with a sliding bearing 19, and one end of the second shaft hole, which is on the same side with the blind hole, is provided with a floating oil seal. Dust covers 12 are arranged at two ends of the shell and detachably connected with the shell, and a damping gasket 14 is arranged below the base; the driving wheel shaft 3 and the driven wheel shaft 4 are hollow shafts, and a plurality of connecting holes 13 which are uniformly distributed in the circumferential direction are formed in the two ends of the driven wheel shaft. The base top is provided with an oil sump 20, which is provided with a baffle 18 integral with the sump on the side near the motor. And cover plates 15 are arranged on two side faces, perpendicular to the driving wheel shaft, of the shell, holes for the driving wheel shaft and the driven wheel shaft to penetrate through are formed in the cover plates, and the cover plates are matched with the shell 1 in appearance and detachably connected to the base.
Example 2
As shown in fig. 2, the difference from embodiment 1 is that: and the end parts of the first shaft hole and the second shaft hole, which are opposite to the floating oil seal 10, are provided with rotary shaft lip-shaped sealing rings 11. A sound-absorbing material layer 16 is provided on the side of the cover plate facing the housing. The sound absorbing material layer 16 can reduce a part of noise generated during operation.
Example 3:
as shown in fig. 3, the difference from embodiment 2 is that: the base is provided with support frames 17 positioned at two ends of a driven wheel shaft, two ends of the driven wheel shaft penetrate through the support frames, the support frames are provided with bearings matched with the driven wheel shaft, the support frames can be detachably fixed on the base, and a damping gasket 14 is arranged between the support frames and the base.
Example 4:
the difference from the embodiment 2 is that: the motor shaft and the driving wheel shaft are not coaxial, the motor shaft and the driving wheel shaft are driven by a small belt pulley and a large belt pulley which are respectively arranged on the motor shaft and the driving wheel shaft, the transmission ratio of the small belt pulley to the large belt pulley is 1: 3, and the sliding bearing 19 is replaced by a needle bearing.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A herringbone gear transmission speed reducer is characterized in that: the double-shaft.
2. A herringbone gear drive reducer of claim 1, wherein: the driving device is characterized in that the first shaft hole (8) is a blind hole, one end of the driving wheel shaft (3) extends into the first shaft hole (8) and is provided with a shaft shoulder matched with the first shaft hole (8), a sliding bearing (19) or a needle bearing is arranged between the first shaft hole (8) and the driving wheel shaft (3), the other end of the driving wheel shaft is provided with a rolling bearing, a motor hole is formed in the end face of the rolling bearing, the driving device is a motor, and an output shaft of the motor is connected with the motor hole.
3. A herringbone gear drive reducer as described in claim 2, wherein: and two end faces of the driven wheel shaft (4) close to the second shaft hole (9) in the second shaft hole are respectively provided with a sliding bearing (19) or a needle bearing, and one end of the second shaft hole, which is at the same side with the blind hole, is provided with a floating oil seal.
4. A herringbone gear drive reducer of claim 3, wherein: and the end parts of the first shaft hole and the second shaft hole, which are opposite to the floating oil seal (10), are provided with rotary shaft lip-shaped sealing rings (11).
5. A herringbone gear drive reducer of claim 4, wherein: dust covers (12) are arranged at two ends of the shell and detachably connected with the shell, and a damping gasket (14) is arranged below the base.
6. A herringbone gear transmission speed reducer according to claim 5, characterized in that the driving wheel shaft (3) and the driven wheel shaft (4) are both hollow shafts, and both ends of the driven wheel shaft are provided with a plurality of connecting holes (13) which are uniformly distributed in the circumferential direction.
7. Herringbone gear reduction unit according to claim 6, characterized in that the base top is provided with an oil sump (20) which is provided with a baffle (18) integrated with the oil sump close to the motor side.
8. A herringbone gear transmission reducer according to claim 7, characterized in that the two sides of the housing perpendicular to the driving wheel shaft are provided with cover plates (15) which are provided with holes for the driving wheel shaft and the driven wheel shaft to pass through, the cover plates are matched with the outer shape of the housing (1) and are detachably connected to the base.
9. Herringbone gear reduction unit according to claim 8, characterized in that a sound absorbing material layer (16) is provided on the side of the cover plate facing the housing.
10. The herringbone gear transmission reducer according to claim 9, wherein the base is provided with support frames (17) at both ends of the driven wheel shaft, both ends of the driven wheel shaft penetrate through the support frames, the support frames are provided with bearings matched with the driven wheel shaft, the support frames are detachably fixed on the base, and a damping gasket (14) is arranged between the support frames and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122491329.0U CN216407626U (en) | 2021-10-16 | 2021-10-16 | Herringbone gear transmission speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122491329.0U CN216407626U (en) | 2021-10-16 | 2021-10-16 | Herringbone gear transmission speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216407626U true CN216407626U (en) | 2022-04-29 |
Family
ID=81296628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122491329.0U Active CN216407626U (en) | 2021-10-16 | 2021-10-16 | Herringbone gear transmission speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216407626U (en) |
-
2021
- 2021-10-16 CN CN202122491329.0U patent/CN216407626U/en active Active
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