CN219692230U - Gear reducer - Google Patents

Abstract

The utility model relates to the technical field of speed reducers, in particular to a gear speed reducer, which comprises an outer shell, a first cover shell, a second cover shell, an input end, an output end and a planetary speed reducing mechanism, wherein the first cover shell and the second cover shell are respectively arranged on the front end surface and the rear end surface of the outer shell, an annular oil duct is arranged in the side wall of the outer shell, a plurality of through holes communicated with the inside of the oil duct are formed in the inner side wall of the outer shell, at least one buffering pressure relief module is arranged on the outer side wall of the outer shell, and the buffering pressure relief module is communicated with the inside of the oil duct.

Description

Gear reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a gear speed reducer.

Background

The speed reducer is an independent component consisting of a gear drive, a worm drive, and a gear-worm drive enclosed in a rigid housing, and is commonly used as a speed reduction transmission between the driving element and the working machine. The function of matching rotational speed and transmitting torque between a prime motor and a working machine or an actuating mechanism is widely applied to modern machines. The planetary gear reducer is one kind of reducer and has the main features of small size, great bearing capacity and stable operation.

The existing planetary gear reducer generally achieves the aim of reducing speed through meshing of gears and gear rings, the gearbox is a sealed box body, when the gearbox works, the gears and gears are meshed with the gears and the gear rings, heat can be generated, the temperature of the gearbox is gradually increased along with the extension of working time, however, the volume of the gearbox is unchanged, pressure in the gearbox is increased, lubricating oil in the gearbox splashes onto the inner wall of the gearbox, because the permeability of the oil is strong, when the box body is pressurized, the lubricating oil can leak out from a part which is not tightly sealed, and the workload of the later period is increased.

Disclosure of Invention

The utility model aims to provide a gear reducer to solve the problem that lubricating oil is easy to leak during working in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gear reducer, includes the shell body, installs first housing and second housing, input, output and the planetary reduction mechanism on the both ends face around the shell body respectively, the inside of shell body lateral wall is provided with annular oil duct, and is provided with a plurality of through-holes with the inside intercommunication of oil duct on the inside wall of shell body, be provided with at least one buffering pressure release module on the shell body lateral wall, and the inside intercommunication of buffering pressure release module and oil duct.

Further, buffering pressure release module includes the cushion chamber, slides and is provided with the piston push pedal in the cushion chamber inside and sets up the elastic return piece that is kept away from shell body one end at the piston push pedal, the one end and the inside intercommunication of oil duct in cushion chamber, run through on the lateral wall in cushion chamber and be provided with a plurality of ventilation holes, and the ventilation hole sets up the one end that is close to elastic return piece at the piston push pedal.

Further, a connecting port is formed in the outer side wall of the outer shell, the connecting port is communicated with the oil duct, and the buffer cavity is detachably connected with the connecting port.

Further, an end cover is detachably mounted at one end of the buffer cavity away from the outer shell.

Further, the top of piston push pedal is provided with the direction slide bar, elasticity restoring piece is the spring, and elasticity restoring piece cup joints in the outside of direction slide bar, run through on the end cover and be provided with the through-hole that holds the direction slide bar and pass.

Further, one end of the guide sliding rod, which is close to the piston pushing plate, is coated with fluorescent paint.

Further, a cooling liquid channel is arranged in the inner side wall of the outer shell, and a liquid inlet and a liquid outlet which are communicated with the cooling liquid channel are arranged on the outer side wall of the outer shell.

Compared with the prior art, the utility model has the beneficial effects that: the gear reducer

Through setting up oil duct and buffering pressure release module, during operation, when the inside pressure of shell body increases, the inside lubricating oil of shell body inside gets into the inside of buffering chamber, plays the effect of pressure release, and when inside pressure reduced, promote the lubricating oil backward flow to the inside of shell body under the elasticity effect of elasticity restoring piece, reduce the leakage of lubricating oil;

through setting up coolant liquid way, inlet and liquid outlet, when the inside temperature of shell body is too high, constantly let in coolant liquid to the inside of coolant liquid way, cool down the reduction gear, avoid the high temperature, accelerate the wearing and tearing of inside transmission component.

Drawings

FIG. 1 is a schematic side view of the present utility model;

FIG. 2 is a schematic perspective view of the present utility model;

FIG. 3 is a schematic diagram of a front cross-sectional structure of a buffer pressure relief module according to the present utility model;

FIG. 4 is a schematic view of the front cross-sectional structure of the outer housing of the present utility model;

fig. 5 is a schematic view showing the front cross-sectional structure of the outer case in embodiment 3 of the present utility model.

In the figure: 1. an outer housing; 101. an oil passage; 102. a connection port; 103. a cooling fluid channel; 104. a liquid inlet; 105. a liquid outlet; 2. a first housing; 3. a second housing; 4. an output end; 5. an input end; 6. a planetary reduction mechanism; 7. a buffer pressure relief module; 701. a buffer chamber; 7011. an end cap; 702. a piston push plate; 703. an elastic reset piece; 704. and (3) a vent hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, the descriptions of the terms "first," "second," and the like are used for descriptive purposes only and are not specifically intended to be order or cis-ient, nor are they intended to limit the present utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying a relative importance or implying a number of technical features in which such a description is indicated, whereby the features defining "first," "second," or the like may explicitly or implicitly include at least one such feature. For the purpose of the present description and claims, and any variations thereof, the term "comprising" and any variations thereof as used in the above-described drawings is intended to cover a non-exclusive inclusion.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "configured" are to be construed broadly, and may be, for example, fixedly connected or detachably connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, in the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

Referring to fig. 1-4, an embodiment of the present utility model is provided: the gear reducer comprises an outer shell 1, a first shell 2 and a second shell 3 which are respectively arranged on the front end surface and the rear end surface of the outer shell 1, an input end 5, an output end 4 and a planetary reduction mechanism 6, in the embodiment, the outer shell 1 is an annular shell, the first shell 2 and the second shell 3 are both fixed on the two end surfaces of the outer shell 1 through bolts, sealing gaskets (not shown in the figure) are arranged on the contact surfaces of the first shell 2 and the second shell 3 with the outer shell 1, so that the leakage of lubricating oil in the inner part is avoided, the planetary reduction mechanism 6 is in the prior art, and mainly comprises a sun gear fixedly connected with the input end 5, a plurality of planet gears connected with the output end 4 through planet carriers and an inner gear ring fixed on the inner side wall of the outer shell 1, during operation, the input end 5 drives the sun gear to rotate, then drives the plurality of planet gears to rotate on the inner side of the inner gear ring, the inner side wall of the inner gear ring is used for reducing, the inner side wall of the outer shell 1 is provided with an annular pressure relief 101, the inner side wall of the outer shell 1 is provided with a plurality of through holes communicated with the inner part of the inner oil duct 101, the inner buffer module 7 is arranged on the outer side wall of the outer shell 1, the inner buffer module 7 is communicated with the inner buffer module 101,

referring to fig. 3, the buffering and pressure releasing module 7 includes a buffering cavity 701, a piston push plate 702 slidably disposed in the buffering cavity 701, and an elastic restoring member 703 disposed at one end of the piston push plate 702 far away from the outer casing 1, where the elastic restoring member 703 may be a spring, the number of the elastic restoring member 703 may be plural, in this embodiment, one end of the buffering cavity 701 is communicated with the inside of the oil duct 101, a plurality of ventilation holes 704 are disposed on the outer side wall of the buffering cavity 701 in a penetrating manner, and the ventilation holes 704 are disposed at one end of the piston push plate 702 near the elastic restoring member 703, when the speed reducer works, the internal pressure is raised, so that the internal lubricating oil enters the inside of the oil duct 101 and then enters the inside of the buffering cavity 701, so as to push the piston push plate 702 to compress the elastic restoring member 703, and the excessive lubricating oil enters the inside of the buffering cavity 701 for storing, thereby avoiding leakage, when the internal pressure of the outer casing 1 is reduced, the lubricating oil is pushed back to the inside under the action of the elastic restoring member 703;

the outer side wall of the outer shell 1 is provided with a connecting port 102, the connecting port 102 is communicated with the oil duct 101, the buffer cavity 701 is detachably connected with the connecting port 102, and the buffer cavity is particularly in threaded connection or flange connection, so that the buffer cavity is convenient to disassemble, assemble, clean and replace, and lubricating oil can be added into the outer shell 1;

the end of the buffer chamber 701 far away from the outer casing 1 is detachably provided with an end cover 7011, which can be specifically in threaded connection or flange connection, etc., and by arranging the end cover 7011, the piston push plate 702 is convenient to replace when worn.

Examples

In this embodiment, on the basis of embodiment 1, a guide sliding rod (not shown in the figure) is disposed at the top end of the piston push plate 702, the elastic reset member 703 is a spring, the elastic reset member 703 is sleeved on the outer side of the guide sliding rod, and a through hole for receiving the guide sliding rod to pass through is disposed on the end cover 7011, so that the spring can be guided and limited, and deformation and displacement of the spring can be avoided;

one end of the guide slide bar, which is close to the piston push plate 702, is coated with fluorescent paint, and in a normal state or when the internal pressure is smaller, the guide slide bar is positioned in the buffer cavity 701, when the internal pressure of the outer shell 1 is overlarge, the guide slide bar pushes the piston push plate 702 to slide towards the inner part far away from the outer shell 1, so that the fluorescent paint extends to the outside, a certain indication effect can be achieved, a worker is reminded of reducing the rotating speed of the input end 5, and the damage to a machine caused by the overhigh internal temperature of a speed reducer is avoided.

Examples

Referring to fig. 5, in this embodiment, on the basis of embodiment 1, a cooling liquid channel 103 is disposed in the inner side wall of the outer casing 1, and a liquid inlet 104 and a liquid outlet 105 which are communicated with the cooling liquid channel 103 are disposed on the outer side wall of the outer casing 1, the liquid inlet 104 is connected with an external water source, when the internal temperature of the outer casing 1 is too high, cooling liquid can be introduced into the cooling liquid channel 103, thereby assisting in cooling, avoiding the too high temperature, accelerating the abrasion of internal transmission elements, and prolonging the service life of the speed reducer.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a gear reducer, includes shell body (1), installs first housing (2) and second housing (3) on both ends face around shell body (1) respectively, output (4), input (5) and planetary reduction mechanism (6), its characterized in that: the inside of shell body (1) lateral wall is provided with annular oil duct (101), and is provided with a plurality of through-holes with the inside intercommunication of oil duct (101) on the inside wall of shell body (1), be provided with at least one buffering pressure release module (7) on the lateral wall of shell body (1), and the inside intercommunication of buffering pressure release module (7) and oil duct (101).

2. A gear reducer according to claim 1, characterized in that: the buffering pressure release module (7) comprises a buffering cavity (701), a piston push plate (702) arranged in the buffering cavity (701) in a sliding mode and an elastic reset piece (703) arranged at one end of the piston push plate (702) away from the outer shell body (1), one end of the buffering cavity (701) is communicated with the inside of the oil duct (101), a plurality of ventilation holes (704) are formed in the outer side wall of the buffering cavity (701) in a penetrating mode, and the ventilation holes (704) are formed in one end, close to the elastic reset piece (703), of the piston push plate (702).

3. A gear reducer according to claim 2, characterized in that: the outer side wall of the outer shell (1) is provided with a connecting port (102), the connecting port (102) is communicated with the oil duct (101), and the buffer cavity (701) is detachably connected with the connecting port (102).

4. A gear reducer according to claim 2, characterized in that: an end cover (7011) is detachably arranged at one end, away from the outer shell (1), of the buffer cavity (701).

5. A gear reducer according to claim 4, wherein: the top of piston push pedal (702) is provided with the direction slide bar, elasticity return piece (703) are the spring, and elasticity return piece (703) cup joint in the outside of direction slide bar, run through on end cover (7011) and be provided with the through-hole that holds the direction slide bar and pass.

6. A gear reducer according to claim 5, wherein: one end of the guide slide bar, which is close to the piston push plate (702), is coated with fluorescent paint.

7. A gear reducer according to claim 1, characterized in that: a cooling liquid channel (103) is arranged in the inner side wall of the outer shell (1), and a liquid inlet (104) and a liquid outlet (105) which are communicated with the cooling liquid channel (103) are arranged on the outer side wall of the outer shell (1).