CN211082333U - Fan transmission device - Google Patents
Fan transmission device Download PDFInfo
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- CN211082333U CN211082333U CN201921682182.XU CN201921682182U CN211082333U CN 211082333 U CN211082333 U CN 211082333U CN 201921682182 U CN201921682182 U CN 201921682182U CN 211082333 U CN211082333 U CN 211082333U
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- fan
- bearing
- transmission
- volute
- impeller
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Abstract
The utility model provides a fan transmission device, which belongs to the technical field of armored vehicles and solves the problems that the clearance between a fan and a fan volute is adjustable, the space and the position are limited, and the maintenance of the fan transmission part is extremely inconvenient due to the space limitation; an adjusting pad is arranged between the connecting disc of the fan impeller and the mixed flow fan impeller; the bearing supporting space is a closed unit to form a closed cavity, two ends of the cavity are sealed by oil seal felt rings, lubricating grease is arranged in the cavity, all supporting bodies and the fan volute are integrated, and the firmness and reliability of supporting are guaranteed.
Description
Technical Field
The utility model relates to a rotating mechanism vertical to the bottom deck of the vehicle body, or a fan transmission device, belonging to the technical field of armored vehicles, which is suitable for vehicles using a motor as power and a fan basically vertical to the bottom deck of the vehicle body; and (4) vehicles.
Background
Due to the foreign trade export demand of the wheeled vehicle, the requirement of the country with higher environmental temperature can be met only by the high-power fan, and the fan power of the vehicle for domestic use can not meet the requirement, so that the fan with higher power (the diameter of the fan blade is 600mm) needs to be replaced at the original fan position of the wheeled vehicle, and the pump with higher power and the motor are used for driving the fan to work.
Under the condition that both the motor and the fan are selected, a fan transmission mechanism needs to be designed, and the fan transmission mechanism is required to be safely used for more than 2000 hours under the condition of meeting the rotating speed and power of the fan.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fan transmission device, the technical problem that solve is that ① transmits the power of motor to the fan, ② the clearance of fan and fan spiral case is adjustable, ③ because space and position restriction, the motor support needs compact structure, occupation space is little, ④ space restriction, the maintenance of fan transmission department is very inconvenient, considers in the vehicle service period, non-maintaining maintenance.
The technical scheme of the utility model is that: a fan transmission device is characterized by comprising a fan volute, a motor bracket, a motor, a fan transmission shaft, a fan impeller connecting disc, a mixed flow fan impeller, an adjusting pad and a bearing supporting space; the transmission support shell is arranged in the fan volute, and the fan volute, the transmission support shell and the motor support are connected into a whole; the motor is arranged on the motor bracket and is connected with a fan transmission shaft which is connected with a fan impeller connecting disc; the mixed-flow fan impeller is connected with a fan impeller connecting disc by an impeller connecting bolt, and an adjusting pad is arranged between the fan impeller connecting disc and the mixed-flow fan impeller; the bearing supporting space is a closed unit which consists of a transmission supporting shell, a bearing seat, an oil seal felt ring, a first bearing, a second bearing, an inner positioning ring and an outer positioning ring; the outer ring of the transmission support shell is matched with the fan volute, two ends of the inner ring are respectively matched with the first bearing and the second bearing, the transmission support shell and the bearing seat form a closed cavity, two ends of the cavity are sealed by oil seal felt rings, and lubricating grease is arranged in the cavity; an inner positioning ring and an outer positioning ring are arranged between the first bearing and the second bearing in the transmission support shell; the inner positioning ring and the outer positioning ring are sleeved on the fan transmission shaft.
Further, the first bearing and the second bearing are respectively a cylindrical roller bearing and a deep groove ball bearing.
Furthermore, the clearance between the mixed flow fan impeller and the conical surface of the fan volute is 1.6 mm-2.5 mm.
Further, the fan volute is made of aluminum alloy.
Further, the transmission support shell is connected with the bearing seat through screws.
Further, the material of the transmission support shell is steel.
Further, it is a rotating mechanism perpendicular to the bottom deck of the car body.
The utility model has the advantages that: all the support bodies are integrated with the fan volute, so that the firmness and reliability of the support are ensured; the fan transmission bearing and other parts are arranged in the transmission support shell, so that the original structure of the fan volute is not required to be changed, and the service life of the fan volute is ensured (the fan volute is made of aluminum alloy, and the transmission support shell is made of steel); the bearing part for the transmission installation of the fan is designed into a completely independent cavity without an oil filling hole, and during assembly, the cavity is filled with lubricating grease, so that the bearing can be lubricated in the whole service life under the normal use state, and the maintenance is not required.
Drawings
The utility model discloses there are 3 drawings.
Fig. 1 is a detailed structural view of the fan drive.
Fig. 2 is a view of the motor bracket portion a.
Fig. 3 is a perspective view of the motor bracket.
1 motor, 2 motor support, 3 fan volute, 4 mixed flow fan impeller, 5 adjusting pad, 6 fan impeller connecting pad, 7 backstop washer, 8 locknut, 9 fan transmission shaft, 10 impeller connecting bolt, 11 oil seal felt ring, 12 transmission support shell, 13 cylindrical roller bearing, NU210ECJ (SKF), 14 outer positioning ring, 15 inner positioning ring, 16 deep groove ball bearing, 6210(SKF), 17 bearing seat, 18 connecting bolt, 19 screw
Detailed Description
The present invention will be described in further detail below.
The utility model discloses a fan transmission device, which is characterized in that the device comprises a fan volute 3, a motor bracket 2, a motor 1, a fan transmission shaft 9, a fan impeller connecting disc 6, a mixed flow fan impeller 4, an adjusting pad 5 and a bearing supporting space; the transmission support shell 12 is arranged in the fan volute 3, the transmission support shell 12 and the motor support 2 are connected into a whole, the motor 1 is arranged on the motor support 2, the motor 1 is connected with the fan transmission shaft 9, and the fan transmission shaft 9 is connected with the fan impeller connecting disc 6; the mixed flow fan impeller 4 is connected with a fan impeller connecting disc 6 by an impeller connecting bolt 10, and an adjusting pad 5 is arranged between the fan impeller connecting disc 6 and the mixed flow fan impeller 4.
The bearing supporting space is a closed unit which consists of a transmission supporting shell 12, a bearing seat 17, an oil seal felt ring 11, a first bearing 13, a second bearing 16, an inner positioning ring 14 and an outer positioning ring 15; the outer ring of the transmission support shell 12 is matched with the fan volute 3, two ends of the inner ring are respectively matched with the first bearing 13 and the second bearing 16, the transmission support shell 12 and the bearing seat 17 form a closed cavity, two ends of the cavity are sealed by an oil seal felt ring 11, and lubricating grease is arranged in the cavity; an inner positioning ring 14 and an outer positioning ring 15 are arranged between a first bearing 13 and a second bearing 16 in the transmission support shell 12; the inner positioning ring 14 and the outer positioning ring 15 are sleeved on the fan transmission shaft 9.
The utility model discloses a fan drive: in order to ensure small occupied space and reliable strength, the fan volute 3, the transmission support shell 12 and the motor bracket 2 are connected into a whole to be used as a support body for the transmission of the whole fan; in order to ensure that the gap between the mixed-flow fan impeller 4 and the fan volute 3 is adjustable, an adjusting pad 5 is additionally arranged between the fan impeller connecting disc 6 and the mixed-flow fan impeller 4; in order to ensure maintenance-free maintenance of the fan transmission part, during assembly, lubricating grease is filled in a cavity of a fan transmission bearing, the size of the cavity is enough to accommodate the whole-life lubrication of the fan transmission, an oil filling port is not designed, and the lubricating grease is not required to be added in the using process of the fan.
The fan transmission device is characterized in that a transmission support shell 12 is arranged in a fan volute 3, a motor support 2, the fan volute 3 and the transmission support shell 12 are connected into a whole by a connecting bolt 18 to serve as a support body for the transmission of the whole fan, a motor 1 is arranged on the motor support 2, and the power of the motor is transmitted to a fan impeller connecting disc 6 through a fan transmission shaft 9; the mixed-flow fan impeller 4 is connected with a fan impeller connecting disc 6 by an impeller connecting bolt 10, and an adjusting pad 5 is added between the mixed-flow fan impeller 4 and the fan impeller connecting disc 6 and is used for adjusting the clearance (the clearance between conical surfaces) between the mixed-flow fan impeller 4 and the fan volute 3 (the clearance is required to be 1.6 mm-2.5 mm);
in the fan transmission, a bearing supporting space is designed into a relatively independent closed unit, the unit consists of a transmission supporting shell 12, a bearing seat 17, an oil seal felt ring 11, a first bearing 13, a second bearing 16, an inner positioning ring 14 and an outer positioning ring 15, the transmission supporting shell 12 is made of steel, the outer ring of the transmission supporting shell is matched with the fan volute 3, the inner ring of the transmission supporting shell is matched with the bearing 13 and the bearing 16, the original structure of the fan volute is not required to be changed, and the service life of the fan volute 3 is ensured (the fan volute is made of aluminum alloy); the transmission support shell 12 is connected with a bearing seat 17 by a screw 19 to form an independent cavity, two ends of the cavity are sealed by an oil seal felt ring 11, and the cavity is filled with enough lubricating grease to ensure the whole-life lubrication of two bearings (a cylindrical roller bearing and a deep groove ball bearing). (Right end cylindrical roller bearing, left end deep groove ball bearing)
A fan transmission device, which can safely and reliably transmit the power of a motor to a fan; the motor bracket, the transmission support shell and the transmission element are all integrated with the fan volute, so that the reliability of support and the minimization of structure are ensured; the bearing supporting space is designed into a relatively independent closed unit to form an independent cavity, sufficient lubricating grease is filled in the cavity to ensure the whole-life lubrication of the two bearings (cylindrical roller bearing and deep groove ball bearing), a special oil filling port and an oil duct are not designed, and the maintenance is not needed in the use process of the fan; an adjusting pad is added between the connecting disc of the fan impeller and the mixed-flow fan impeller and is used for adjusting the gap between the mixed-flow fan impeller and the fan volute.
The designed fan transmission structure realizes the minimization of fan transmission; an adjusting pad 5 is added between the connecting disc 6 of the fan impeller and the mixed-flow fan impeller 4 for adjusting the gap between the mixed-flow fan impeller 4 and the fan volute 3; the bearing supporting space is designed into a relatively independent closed unit, the cavity is filled with enough lubricating grease, a special oil filling port and an oil passage are not designed, and maintenance is not needed in the use process of the fan.
The fan drive can be used in any rotating mechanism which is basically vertical to the bottom deck of the car body.
Claims (7)
1. A fan transmission device is characterized by comprising a fan volute (3), a motor bracket (2), a motor (1), a fan transmission shaft (9), a fan impeller connecting disc (6), a mixed flow fan impeller (4), an adjusting pad (5) and a bearing supporting space;
the transmission support shell (12) is arranged in the fan volute (3), the transmission support shell (12) and the motor bracket (2) are connected into a whole,
the motor (1) is arranged on the motor support (2), the motor (1) is connected with a fan transmission shaft (9), and the fan transmission shaft (9) is connected with a fan impeller connecting disc (6); the mixed-flow fan impeller (4) is connected with a fan impeller connecting disc (6) by an impeller connecting bolt (10), and an adjusting pad (5) is arranged between the fan impeller connecting disc (6) and the mixed-flow fan impeller (4);
the bearing supporting space is a closed unit which consists of a transmission supporting shell (12), a bearing seat (17), an oil seal felt ring (11), a first bearing (13), a second bearing (16), an inner positioning ring (14) and an outer positioning ring (15);
the outer ring of the transmission support shell (12) is matched with the fan volute (3), two ends of the inner ring are respectively matched with the first bearing (13) and the second bearing (16), the transmission support shell (12) and the bearing seat (17) form a closed cavity, two ends of the cavity are sealed by an oil seal felt ring (11), and lubricating grease is arranged in the cavity;
an inner positioning ring (14) and an outer positioning ring (15) are arranged between a first bearing (13) and a second bearing (16) in the transmission support shell (12); the inner positioning ring (14) and the outer positioning ring (15) are sleeved on the fan transmission shaft (9).
2. The fan drive of claim 1,
the first bearing (13) and the second bearing (16) are respectively a cylindrical roller bearing and a deep groove ball bearing.
3. The fan transmission device as claimed in claim 1, wherein the clearance between the mixed flow fan impeller (4) and the conical surface of the fan volute (3) is 1.6 mm-2.5 mm.
4. The fan drive of claim 1, wherein the fan volute is made of an aluminum alloy.
5. A fan drive as claimed in claim 1, characterised in that the drive support housing (12) is connected to the bearing block (17) by screws (19).
6. A fan drive as claimed in claim 1, characterised in that the material of the drive support housing (12) is steel.
7. The fan drive of claim 1, wherein the fan drive is a rotary mechanism perpendicular to a bottom deck of the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921682182.XU CN211082333U (en) | 2019-10-10 | 2019-10-10 | Fan transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921682182.XU CN211082333U (en) | 2019-10-10 | 2019-10-10 | Fan transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211082333U true CN211082333U (en) | 2020-07-24 |
Family
ID=71630914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921682182.XU Active CN211082333U (en) | 2019-10-10 | 2019-10-10 | Fan transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211082333U (en) |
-
2019
- 2019-10-10 CN CN201921682182.XU patent/CN211082333U/en active Active
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