CN203009714U - A worm gear reducer - Google Patents

Abstract

The utility model relates to a worm gear speed reducer, including box, base, worm wheel and worm, the worm wheel cover is established on the worm wheel axle, the worm wheel meshes the worm, worm wheel axle both ends are fixed on the box through first bearing and second bearing respectively, worm wheel axle both ends are equipped with worm wheel front end housing and worm wheel rear end housing, the worm wheel both ends respectively with box, worm wheel front end housing between be provided with the worm wheel oil blanket; the worm both ends are fixed on the box through third bearing and fourth bearing respectively, the worm both ends are equipped with worm front end housing and worm rear end cap, be provided with the worm oil blanket between worm and box, the worm front end housing. The utility model discloses simple structure can save installation space, has advantages such as transmission stationarity is good, transmission efficiency is good, the precision is high simultaneously.

Description

A worm gear reducer

technical field

The utility model belongs to the technical field of machinery, and in particular relates to a worm gear reducer. the

Background technique

The reducer is a power transmission mechanism that uses the speed converter of the gear to reduce the number of revolutions of the motor (motor) to the desired number of revolutions and obtain a larger torque. In the mechanism currently used to transmit power and motion, the application range of the reducer is quite wide. It can be seen in almost all kinds of mechanical transmission systems, from ships, automobiles, locomotives, heavy machinery used in construction, processing machinery and automated production equipment used in the machinery industry, to common in daily life. Home appliances, clocks and more. the

The reducer is a relatively precise machine, the purpose of using it is to reduce the speed and increase the torque. It has a wide variety, different models, and different types have different uses. There are many types of reducers, which can be divided into gear reducers, worm reducers and planetary gear reducers according to the transmission type; single-stage and multi-stage reducers according to the number of transmission stages; cylindrical gear reducers according to the gear shape Gear reducer, bevel gear reducer and bevel-cylindrical gear reducer; according to the layout of the transmission, it can be divided into expansion type, shunt type and coaxial type reducer. The main feature of the worm gear reducer is that it has a reverse self-locking function, which can have a large reduction ratio, and the input shaft and output shaft are not on the same axis or on the same plane. However, the volume is generally large, the transmission efficiency is not high, and the precision is not high. the

Utility model content

In order to solve the defects in the existing design, the utility model provides a worm gear reducer. the

A worm gear reducer, including a box body, a base, a worm wheel and a worm, the worm wheel is sleeved on the worm wheel shaft, the worm wheel meshes with the worm wheel, and the two ends of the worm wheel shaft are respectively fixed on the first bearing and the second bearing On the box body, the two ends of the worm shaft are provided with a worm gear front end cover and a worm wheel rear end cover, and a worm gear oil seal is arranged between the two ends of the worm wheel and the box body and the worm wheel front end cover respectively; the two ends of the worm are respectively passed through the third The bearing and the fourth bearing are fixed on the box body, the two ends of the worm are provided with a worm front end cover and a worm rear end cover, and a worm oil seal is arranged between the worm, the box body and the worm front end cover. the

Preferably, the worm wheel is connected to the worm wheel shaft through a key. the

Preferably, an O-ring is provided between the front end cover of the worm gear, the rear end cover of the worm gear and the box body. the

Preferably, an oil inlet is provided at the top of the box, and an oil outlet is provided at the bottom of the box. the

Preferably, the diameter of the protruding end of the worm is 30-40 mm. the

Preferably, the length of the extended end of the worm is 70-80 mm. the

The utility model has the advantages of simple structure, saving installation space, good transmission stability, good transmission efficiency, high precision and the like. the

Description of drawings

Fig. 1 is a structural representation of the utility model. the

Fig. 2 is a left view of the utility model. the

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the utility model is not limited thereto. the

Referring to Fig. 1 and Fig. 2, a worm gear reducer includes a box body 1, a base 2, a worm wheel 3 and a worm 4, the worm wheel 3 is sleeved on the worm shaft 5, the worm wheel 3 meshes with the worm 4, and the The two ends of the worm gear shaft 5 are respectively fixed on the casing 1 through the first bearing 6 and the second bearing 7. The two ends of the worm gear shaft 5 are provided with a worm gear front end cover 8 and a worm gear rear end cover 9. The two ends of the worm gear 3 are respectively A worm gear oil seal 10 is arranged between the box body 1 and the worm wheel front end cover 8; the two ends of the worm 4 are respectively fixed on the box body through the third bearing 11 and the fourth bearing 12, and the two ends of the worm 4 are provided with a worm front end A cover 13 and a worm rear end cover 14 , and a worm oil seal 15 is arranged between the worm 4 , the casing 1 and the worm front end cover 13 . the

The worm wheel 3 and the worm wheel shaft 5 are connected by a key 16, and an O-ring 17 is arranged between the worm wheel front cover 8 and the worm wheel rear end cover 9 and the box body 1, and the top of the box body 1 is provided with an inlet An oil port 18 and an oil outlet 19 are provided at the bottom of the casing 1 . The diameter of the extended end of the worm 4 is 40 mm, and the length of the extended end of the worm is 80 mm. the

Claims (6)

1. worm-gear speed reducer, comprise casing, base, worm gear and worm screw, it is characterized in that: described worm gear set is located on worm-wheel shaft, described wormgear engaging worm, described worm-wheel shaft two ends are fixed on casing by clutch shaft bearing and the second bearing respectively, described worm-wheel shaft two ends are provided with worm gear front cover and worm gear rear end cover, and described worm gear two ends are provided with the worm gear oil sealing respectively and between casing, worm gear front cover; Described worm screw two ends are fixed on casing by the 3rd bearing and the 4th bearing respectively, and described worm screw two ends are provided with worm screw front cover and worm screw rear end cover, are provided with the worm screw oil sealing between described worm screw and casing, worm screw front cover.

2. worm-gear speed reducer according to claim 1 is characterized in that: be connected by key between described worm gear and worm-wheel shaft.

3. worm-gear speed reducer according to claim 1, is characterized in that: be provided with the O RunddichtringO between described worm gear front cover and worm gear rear end cover and casing.

4. worm-gear speed reducer according to claim 1 is characterized in that: described casing top is provided with filler opening, and bottom half is provided with oil outlet.

5. worm-gear speed reducer according to claim 1, it is characterized in that: the overhanging end diameter of described worm screw is 30～40mm.

6. worm-gear speed reducer according to claim 5, it is characterized in that: the overhanging end length of described worm screw is 70～80mm.

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