CN110285212A - A kind of circulation oil jet lubrication vertical speed reducer - Google Patents

Abstract

The invention discloses a circulating oil injection lubrication vertical reducer, which belongs to the technical field of reducers. The speed reducer includes an input shaft, a box body and an output shaft, the two ends of the input shaft are installed on the box body through rolling bearings respectively, and the two ends of the output shaft are respectively installed on the box body through rolling bearings. There are oil passages, oil inlets and oil outlets arranged on the box body. The lubricating oil enters the oil passage in the box through the oil inlet. The oil passage is divided into three parts. The lubricating oil passes through the upper oil passage and the lower oil passage to lubricate the bearings at both ends of the shaft. , the lubricating oil is sprayed and lubricated to the gear through the nozzle through the middle road, and then the lubricating oil is returned to the oil through the oil outlet to realize the cycle oil spray lubrication of the reducer, so that the reducer can run at high speed and meet the reduction transmission.

Description

A circulating oil injection lubrication vertical reducer

technical field

The invention relates to the technical field of reducers, in particular to a circulating oil injection lubricated vertical reducer.

Background technique

The reducer is an independent closed transmission device between the prime mover and the working machine, which can be used to reduce the speed and increase the torque to meet the needs of various working machines. The gear reducer has high transmission efficiency and reliability, long service life and convenient maintenance, so it has a wide range of applications. Gear reducers can be divided into single-stage, two-stage, three-stage and multi-stage according to the number of gear stages; vertical and horizontal according to the arrangement of their shafts in space; type, coaxial type and shunt type, etc.

Most of the current vertical reducers are lubricated with bath oil. However, when the reducer works at high speed, the reducer will generate a lot of heat. The traditional bath oil lubrication cannot effectively cool the reducer. It will affect the normal operation of the reducer and reduce the service life of the reducer.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention proposes a circulating oil injection lubricated vertical reducer with good lubricating and cooling effects, which has a scientific and reasonable design, a simple structure and is easy to use.

Technical scheme of the present invention is:

The vertical reducer with circulating oil injection lubrication includes a box body, an input shaft, an output shaft, and gears; the input shaft and the output shaft are respectively installed in the box body through bearings in parallel, and the reduction transmission is realized through gears between them, forming a vertical deceleration structure;

It is characterized by:

There is an oil circuit in the box, and the oil circuit adopts a single oil inlet and a single oil outlet design, in which the oil inlet is arranged on the side wall of the box, and the oil outlet is arranged on the bottom of the box, respectively connected to the external pipeline through the adapter ;

The oil circuit in the box body is divided into three parts: the upper oil circuit, the lower oil circuit and the middle oil circuit; the cooling and lubricating oil outlet of the upper oil circuit is located at the upper part of the input shaft and the output shaft where the bearing is installed, which can The upper bearing of the reducer is cooled and lubricated; the cooling and lubricating oil outlet of the lower oil circuit is located at the lower installation bearing of the input shaft and the output shaft, which can cool and lubricate the lower bearing in the reducer; the cooling and lubricating oil outlet of the middle oil circuit is located A nozzle is installed near the gear between the input shaft and the output shaft, and the gear is sprayed and lubricated for cooling.

A further preferred solution, the circulating oil injection lubrication vertical reducer is characterized in that: the box body is made of cast iron, and the oil circuit inside the box body is formed by integral casting.

A further preferred solution, the above-mentioned circulating oil injection lubrication vertical reducer is characterized in that: the dynamic seal of the shaft end of the input shaft and the output shaft is sealed by an oil seal; The body is sealed with an O-ring.

A further preferred solution, the above-mentioned circulating oil injection lubrication vertical reducer is characterized in that: an oil pool is designed around the bearing seat where the bearing is installed on the lower part of the input shaft and the output shaft.

A further preferred solution, the above-mentioned circulating oil injection lubrication vertical reducer is characterized in that: a vent plug and a lifting ring are installed on the top of the box.

Beneficial effect

The beneficial effects of the present invention are:

1. An oil circuit is set in the reducer box body, and the gears and bearings of the reducer can be lubricated well through circulating oil injection lubrication, and the reducer can work normally at high speed.

2. The reducer has only one oil inlet and one oil outlet, which makes the reducer simple in structure and easy to use.

3. The design of the present invention is scientific and reasonable, and the maintenance is convenient.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a structural schematic diagram of the reducer of the present invention.

Fig. 2 is a plan view showing main parts of the reducer.

Fig. 3 is a side view showing main parts of the reducer.

Detailed ways

Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

As shown in Figure 1, the circulating oil injection lubrication reducer in this embodiment includes an input shaft 1, a lower oil seal 2, a box body 3, a pinion 4, a lifting ring 5, a first O-ring 6, a vent plug 7, a first Bearing 8, upper oil seal 9, second O-ring 10, second bearing 11, large gear 12, output shaft 13.

The input shaft 1 is installed on the box body 3 through the first bearing 8 , and the output shaft 13 is installed on the box body 3 through the second bearing 11 . The first O-ring 6 and the second O-ring 10 are respectively installed between the end cover of the bearing and the casing to prevent oil from leaking from the end cover. The lower oil seal 2 and the upper oil seal 9 are respectively installed on the shaft ends of the input shaft 1 and the output shaft 13 extending out of the casing, the vent plug 7 is installed on the top of the casing, and the lifting ring 5 is installed on the top of the casing.

The input shaft 1 and the output shaft 13 are parallel shafts, and the reduction transmission is realized through the pinion gear 4 and the bull gear 12 to form a vertical deceleration structure; the pinion gear 4 and the bull gear 12 are cylindrical gears.

The reducer box is provided with an oil passage, and the oil passage of the box adopts the design of a single oil inlet and a single oil outlet, wherein the oil inlet is arranged on the side wall of the box, and the oil outlet is arranged on the bottom of the box. The joint is connected to the external pipeline; the other end of the adapter at the oil inlet is connected to the oil inlet pipe, the other end of the adapter at the oil outlet is connected to the oil outlet pipe, and the oil inlet pipe and the oil outlet pipe are respectively connected to the oil station to realize the circular injection of the reducer lubricating.

As shown in Figure 2 and Figure 3, lubricating oil enters the reducer case 3 through the oil inlet 18, and the oil passage in the case is divided into three parts: the upper oil passage, the lower oil passage and the middle oil passage. In this embodiment The box body is made of cast iron, and the oil circuit inside the box body is also integrally cast. The hole diameter of the oil passage is also calculated and determined according to the flow rate of the lubricating oil and the amount of oil required for the gears and bearings.

The cooling and lubricating oil outlet of the upper oil circuit 15 is located at the upper installation bearing of the input shaft and the output shaft, which can cool and lubricate the upper bearing in the reducer; the cooling and lubricating oil outlet of the lower oil circuit 14 is located at the input shaft and the output shaft The bearing installed at the lower part of the reducer can cool and lubricate the lower bearing in the reducer; the nozzle 17 is installed at the cooling and lubricating oil outlet of the intermediate oil circuit, which is located near the gear between the input shaft and the output shaft, and sprays oil on the gear After lubricating and cooling, the lubricating oil returns to the oil through the oil outlet 16 to ensure good lubrication of the reducer and ensure the normal operation of the gears and bearings. An oil pool is designed around the bearing seat where the bearings are installed on the lower part of the input shaft and the output shaft, so that the lubricating oil of the lower bearing can be circulated to prevent dead oil.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limitations to the present invention. Variations, modifications, substitutions, and modifications to the above-described embodiments are possible within the scope of the present invention.

Claims (5)

1. a kind of circulation oil jet lubrication vertical speed reducer, including cabinet, input shaft, output shaft, gear；Input shaft and output shaft point Be not installed in parallel in cabinet by bearing, between by gear realize deceleration transmission, form vertical slowing-down structure；

It is characterized by:

Oil circuit is provided in cabinet, oil circuit is using single oil inlet and single oil outlet design, and wherein oil inlet is arranged in wall box, Oil outlet is arranged in the bottom of box, is connect respectively by adapter with exterior line；

The oil circuit is divided into upper oil circuit, lower oil circuit and intermediate oil circuit three parts in box house；The wherein cooling and lubricating of upper oil circuit Oil outlet is located at the top installation bearing of input shaft and output shaft, and cooling profit can be carried out to the upper bearing in retarder It is sliding；The cooling and lubricating oil outlet of lower oil circuit is located at the lower part installation bearing of input shaft and output shaft, can be in retarder Lower bearing carries out cooling and lubricating；The cooling and lubricating oil outlet of intermediate oil circuit is equipped with nozzle, is located at input shaft and output shaft Between gear near, it is cooling that oil jet lubrication is carried out to gear.

2. a kind of circulation oil jet lubrication vertical speed reducer according to claim 1, it is characterised in that: cabinet uses cast iron quality Casting, wherein box house oil circuit uses integral casting forming.

3. a kind of circulation oil jet lubrication vertical speed reducer according to claim 2, it is characterised in that: input shaft and output shaft Shaft end moving seal passes through oil sealing sealing；It is close using O-ring between input shaft and the bearing (ball) cover and cabinet of output shaft bearings at both ends Envelope.

4. a kind of circulation oil jet lubrication vertical speed reducer according to claim 2, it is characterised in that: under input shaft and output shaft Design has oil sump around the bearing block of portion's installation bearing.

5. a kind of circulation oil jet lubrication vertical speed reducer according to claim 2, it is characterised in that: top of the box is equipped with logical Vent plug and hanging ring.