CN202690888U

CN202690888U - High-speed gear box

Info

Publication number: CN202690888U
Application number: CN 201220353429
Authority: CN
Inventors: 吴宏登; 董建峰; 刘虎
Original assignee: JIANGSU JINXIANG TRANSMISSION EQUIPMENT CO Ltd
Current assignee: JIANGSU JINXIANG TRANSMISSION EQUIPMENT CO Ltd
Priority date: 2012-07-20
Filing date: 2012-07-20
Publication date: 2013-01-23
Anticipated expiration: 2022-07-20

Abstract

The utility model discloses a high-speed gear box. The high-speed gear box comprises high-speed shafts (1), a box body (2) and a low-speed shaft (4); two ends of each high-speed shaft (1) are arranged on the box body (2) through high-speed shaft sliding bearings (3); two ends of the low-speed shaft (4) are arranged on the box body (2) through low-speed shaft sliding bearings (7); a gear No.1 (5) and a gear No.2 (6) are arranged on the low-speed shaft (4) through keys; the gear No.1 (5) and the gear No.2 (6) are meshed with two ends of a herringbone tooth of the high-speed shaft (1) respectively; and all the parts form the high-speed gear box. Due to the adoption of the structure of the herringbone tooth, the gear box runs stably and is large in bearing capacity; during high-speed running, oil films are produced by the sliding bearings, so that the box gear vibrates slightly, and theoretically, the service life of the sliding bearings is infinite; and the temperature and the output rotation speed of the sliding bearings of the high-speed gear box can be monitored timely by using a platinum resistance thermometer, a speed measurement sensor and other components, so that the high-speed gear box can run reliably.

Description

High-speed gear box

Technical field

The utility model belongs to mechanical field, is specifically related to a kind of high-speed gear box.

Background technique

It is supporting that this product is mainly used in the units such as steam turbine, fuel engine power generation, centrifugal and axial-flow blower, blower.Maximum speed reaches 20000-30000r/min, and peak output reaches 40000-60000KW, and the accuracy of gear reaches the ISO4-5 level, and the gear dynamic balance accuracy reaches ISO 0.4-1.6.The main dependence on import of domestic existing high-speed gear box, along with expanding economy and technological progress, the using scope of high-speed gear box is more and more extensive, the import fast chamber more and more can not adapt to the needs of domestic economy development, its price is high, maintenance and after sales service is untimely, maintenance cost is high, and quality is unstable etc. that problem is outstanding all the more.

Summary of the invention

The purpose of this utility model is: design a kind of high-speed gear box, both guaranteed that manufacture cost is relatively low, conventional equipment can be processed, and invests lessly, and technique is simple, guarantees again to install and use reliable, easy to maintenance.

Technical solution of the present utility model is: this high-speed gear box comprises high speed shaft, casing and lower velocity shaft, the two ends of high speed shaft are installed on the casing through the high speed shaft sliding bearing respectively, the two ends of lower velocity shaft are installed on the casing through the lower velocity shaft sliding bearing respectively, through key a gear and No. two gears are installed on the lower velocity shaft, a gear and No. two gears mesh respectively whole formation high-speed gear box with the herringbone tooth two ends of high speed shaft.

Wherein, at the lower velocity shaft sliding bearing low speed platinum thermoresistance is installed, at the high speed shaft sliding bearing high speed platinum thermoresistance is installed.

Wherein, installation rate sensor on lower velocity shaft.

Wherein, installed thrust bearing axially locating on lower velocity shaft.

The utlity model has following advantage: 1, simple in structure, can satisfy speedup or gearing down; 2, adopt the herringbone tooth structure, operate steadily, bearing capacity is large; 3, adopt sliding bearing, when high speed operation, because sliding bearing produces oil film, so vibrate littlely, and can make in theory sliding bearing infinite life; 4, use the elements such as platinum thermoresistance, tachogenerator that high-speed gear box sliding bearing temperature and output speed are carried out timing monitoring, guarantee that high-speed gear box is reliable; 5, wherein, institute's sprocket drive spindle and gear carry out dynamic balance running, and precision reaches ISO 0.4-1.6; 6,

Wherein, institute's sprocket drive spindle, gear and sliding bearing all adopt the Lubricating-oil Station pressure lubrication, oil product ISO VG32-46 turbine oil, filter precision 0.02mm.

Description of drawings

Fig. 1 is the utility model structural representation.

Among the figure: 1. high speed shaft, 2. casing, 3. high speed shaft sliding bearing, 4. lower velocity shaft, 5. gear, 6. No. two gears, 7. lower velocity shaft sliding bearing, 8. low speed platinum thermoresistance, 9. velocity transducer, 10. thrust-bearing, 11. high speed platinum thermoresistances.

Embodiment

Accompanying drawing discloses the utility model embodiment's concrete structure without limitation, and the utility model is further described below in conjunction with accompanying drawing.

As shown in Figure 1, this high-speed gear box comprises high speed shaft 1, casing 2 and lower velocity shaft 4, the two ends of high speed shaft 1 are installed on the casing 2 through high speed shaft sliding bearing 3 respectively, the two ends of lower velocity shaft 4 are installed on the casing 2 through lower velocity shaft sliding bearing 7 respectively, through key a gear 5 and No. two gears 6 are installed on the lower velocity shaft 4, a gear 5 and No. two gears 6 mesh respectively whole formation high-speed gear box with the herringbone tooth two ends of high speed shaft 1.

Wherein, at lower velocity shaft sliding bearing 7 low speed platinum thermoresistance 8 is installed, at high speed shaft sliding bearing 3 high speed platinum thermoresistance 11 is installed.

Wherein, installation rate sensor 9 on lower velocity shaft 4.

Wherein, installed thrust bearing 10 axially locating on lower velocity shaft 4.

Claims

1. high-speed gear box, it is characterized in that: this high-speed gear box comprises high speed shaft (1), casing (2) and lower velocity shaft (4), the two ends of high speed shaft (1) are installed on the casing (2) through high speed shaft sliding bearing (3) respectively, the two ends of lower velocity shaft (4) are installed on the casing (2) through lower velocity shaft sliding bearing (7) respectively, lower velocity shaft (4) is upper installs a gear (5) and No. two gears (6) through key, a gear (5) and No. two gears (6) mesh with the herringbone tooth two ends of high speed shaft (1) respectively, whole formation high-speed gear box.

2. high-speed gear box according to claim 1 is characterized in that: wherein, at lower velocity shaft sliding bearing (7) low speed platinum thermoresistance (8) is installed, at high speed shaft sliding bearing (3) high speed platinum thermoresistance (11) is installed.

3. high-speed gear box according to claim 1 is characterized in that: wherein, go up installation rate sensor (9) at lower velocity shaft (4).

4. high-speed gear box according to claim 1 is characterized in that: wherein, go up installed thrust bearing (10) axially locating at lower velocity shaft (4).