CN211259588U - Automatic lubrication reduction gearbox - Google Patents

Abstract

The utility model relates to a speed reducer, in particular to an automatic lubrication reduction gearbox, which comprises a shell, wherein an input shaft and an output shaft are arranged in the shell, a gear set is arranged between the input shaft and the output shaft, an installation shaft of any gear in the gear set is connected with the shell through a bearing seat, lubricating oil is injected in the shell, a plunger pump is arranged in the shell, an inlet pipe of the plunger pump extends into the lubricating oil layer, an eccentric wheel set for driving the plunger pump is arranged on the output shaft, a distribution valve is arranged outside the shell, an inlet of the distribution valve is communicated with an outlet of the plunger pump, an outlet of the distribution valve is communicated with the bearing seat, automatic lubrication is carried out through the plunger pump, the use stability of the reduction gearbox can be effectively improved, the service life of the reduction gearbox can be effectively prolonged, the rotating speed of the output shaft is slow, the plunger pump is, can effectual protection plunger pump and distribution valve, can avoid oil splash simultaneously.

Description

Automatic lubrication gearbox

technical field

The utility model relates to a speed reducer, in particular to an automatic lubricating speed reducer.

Background technique

The reducer plays the role of matching the rotational speed and transmitting the torque between the prime mover and the working machine or the actuator, and is widely used in modern machinery. The reducer can be divided into two categories: general reducer and special reducer according to the purpose, and the design, manufacture and use characteristics of the two are different.

In the mixing machinery, especially in the mixing of construction projects, it is necessary to mix various materials. Due to the large amount of materials, a large stirring torque is required. Since the output torque of the motor is small, it is necessary to use a reducer to reduce the output speed and increase the speed. The output torque ensures the stability of stirring, and at the same time can well protect the motor.

Since the reducer is driven by gears, and the gears are positioned through bearings and shafts, lubrication is required. The common method is to add lubricating oil in the reducer box and replenish it regularly, which is troublesome to operate. There are also some technical solutions through external The oil circuit is lubricated, the operation is simple, but the maintenance is troublesome and easy to damage.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art and provide an automatic lubricating reduction gearbox with high working stability and automatic lubrication.

The utility model is realized by the following technical solutions: an automatic lubricating reduction box, comprising a casing, an input shaft and an output shaft extending outward are arranged in the casing, and a gear set is arranged between the input shaft and the output shaft , the installation shaft of any gear in the gear set is connected with the casing through the bearing seat, the casing is filled with lubricating oil, the casing is provided with a plunger pump, and the inlet pipe of the plunger pump extends to the lubricating oil layer Inside, the output shaft is provided with an eccentric wheel set for driving the plunger pump, a distribution valve is arranged outside the casing, the inlet of the distribution valve is communicated with the outlet of the plunger pump, and the outlet of the distribution valve is communicated to bearing housing.

Further, the plunger pump includes a casing, an oil cavity is arranged in the casing, one end of the oil cavity is sealed with a push rod, a return spring is arranged between the inner end of the push rod and the end of the oil cavity, and the oil cavity is connected with an inlet. The inlet pipe is provided with an inlet check valve, and the outlet pipe is provided with an outlet check valve.

Further, the eccentric wheel set includes a drive wheel eccentrically sleeved on the output shaft through a key, a drive bearing is sleeved on the outside of the drive wheel with an interference fit, and the outer end of the push rod is perpendicular to the outer side of the drive bearing.

Further, the distribution valve is a valve body with one inlet and multiple outlets.

Further, the inlet of the distribution valve is communicated with the outlet of the plunger pump through an oil pipe, and the outlet of the distribution valve is communicated with the bearing seat through an oil pipe.

Further, the bearing seat is provided with an oil filling port matched with the distribution valve.

The beneficial effect of the utility model is that: the automatic lubrication by the plunger pump can effectively improve the use stability of the reduction box, and at the same time can effectively improve the service life. Combined, it can reduce the working frequency of the plunger pump, and at the same time can avoid the rapid change of the oil pressure in the oil cavity, can effectively protect the plunger pump and the distribution valve, and can avoid oil splashing; the plunger pump is mainly composed of the casing, pusher Rod, return spring, inlet pipe, outlet pipe, inlet check valve and outlet check valve are composed of simple structure and high working stability; the push rod is driven by the driving wheel and the driving bearing, which can reduce friction and ensure stable transition. Plunger pump working stability.

Description of drawings

1 is a schematic diagram of a partial cross-sectional view of Embodiment 1;

Fig. 2 is the schematic diagram of the structure of the plunger pump;

Among them: 1-housing, 2-input shaft, 3-gear, 4-piston pump, 5-output shaft, 6-bearing seat, 7-distribution valve, 8-oil pipe, 9-eccentric wheel set, 10-drive wheel , 11 - drive bearing, 12 - key, 13 - housing, 14 - push rod, 15 - return spring, 16 - inlet check valve, 17 - outlet check valve, 18 - inlet pipe, 19 - outlet pipe.

Detailed ways

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

As shown in Figure 1-2, an automatic lubricating gearbox includes a casing 1, which is welded by steel plates, and an input shaft 2 and an output shaft 5 extending outward are installed in the casing. A gear set is installed, the installation shaft of any gear 3 in the gear set is connected to the casing through the bearing seat 6, lubricating oil is injected into the casing, a plunger pump fixing plate is installed in the casing, and a plunger is installed on the plunger pump fixing plate Pump 4, the plunger pump includes a stainless steel casing 13, an oil cavity is arranged in the casing, one end of the oil cavity is sealed with a push rod 14, a return spring 15 is installed between the inner end of the push rod and the end of the oil cavity, and the oil cavity is connected with a The inlet pipe 18 and the outlet pipe 19, an inlet check valve 16 is installed at the inlet pipe, an outlet check valve 17 is installed at the outlet pipe, the inlet pipe of the plunger pump extends into the lubricating oil, and a drive column is installed on the output shaft. The eccentric wheel set 9 of the plug pump, the eccentric wheel set includes a drive wheel 10 eccentrically sleeved on the output shaft through a key 12, a drive bearing 11 is sleeved with an interference fit on the outside of the drive wheel, and the outer end of the push rod is perpendicular to the outer side of the drive bearing. , The outer end of the push rod is hemispherical, the push rod is quenched, and the surface hardness is high. During the rotation of the output shaft, the push rod can be pushed back and forth through the eccentric wheel group, thereby making the plunger pump work. Distribution valve 7, the distribution valve is a valve body with one inlet and multiple outlets. The inlet of the distribution valve is communicated with the outlet of the plunger pump through the oil pipe 8, and the outlet of the distribution valve is connected to the bearing seat through the oil pipe. The oil filling port matched with the valve can inject lubricating oil into the bearing seat through the oil filling port, and then infiltrate into the casing to complete the lubrication, improve the working stability of the reduction box, and further improve the service life. In this embodiment, because the output shaft The speed of the pump is slow. Combining the plunger pump with the output shaft can reduce the working frequency of the plunger pump, and at the same time, it can avoid the rapid change of the oil pressure in the oil cavity, and can effectively protect the plunger pump and the distribution valve. The distribution valve has many connections. One outlet pipe, the oil pressure at the outlet pipe is low, which can avoid oil splashing at the oil filling port and ensure the service life.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model, All should be included within the protection scope of the present invention.

Claims (6)

1. An automatic lubricating reduction gearbox, characterized in that: comprising a casing, an input shaft and an output shaft extending outward are provided in the casing, a gear set is arranged between the input shaft and the output shaft, and the gear set is The installation shaft of any one of the gears is connected to the casing through the bearing seat, the casing is filled with lubricating oil, the casing is provided with a plunger pump, and the inlet pipe of the plunger pump extends into the lubricating oil layer, and the output An eccentric wheel set for driving the plunger pump is arranged on the shaft, a distribution valve is arranged outside the casing, the inlet of the distribution valve is communicated with the outlet of the plunger pump, and the outlet of the distribution valve is communicated with the bearing seat. 2. The automatic lubricating gearbox according to claim 1, wherein the plunger pump comprises a casing, an oil cavity is arranged in the casing, one end of the oil cavity is sealed with a push rod, and the inner end of the push rod is connected to the oil A return spring is arranged between the ends of the cavity, the oil cavity is connected with an inlet pipe and an outlet pipe, an inlet check valve is arranged at the inlet pipe, and an outlet check valve is arranged at the outlet pipe. 3. The automatic lubricating gearbox according to claim 2, characterized in that: the eccentric wheel set comprises a driving wheel eccentrically sleeved on the output shaft through a key, and a driving bearing is sleeved on the outer interference fit of the driving wheel, so The outer end of the push rod is perpendicular to the outer side of the drive bearing. 4 . The automatic lubricating reduction box according to claim 1 , wherein the distribution valve is a valve body with one inlet and multiple outlets. 5 . 5 . The automatic lubricating reduction box according to claim 1 , wherein the inlet of the distribution valve is communicated with the outlet of the plunger pump through an oil pipe, and the outlet of the distribution valve is communicated with the bearing seat through an oil pipe. 6 . 6 . The automatic lubricating reduction box according to claim 5 , wherein the bearing seat is provided with an oil filling port matched with the distribution valve. 7 .

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