Lubricating structure for speed reducer

Abstract

The utility model discloses a lubricating structure for a speed reducer. The lubricating structure comprises a speed reducer main body, the lubricating mechanism is arranged on one side of the top of the speed reducer body and used for automatically injecting lubricating oil into the speed reducer body, the lubricating mechanism comprises a mounting plate mounted on one side of the top of the speed reducer body, and an electric telescopic rod is mounted on one side of the top of the mounting plate; by means of the arrangement of the lubricating mechanism, when oil is injected into the speed reducer body, an electric telescopic rod drives a connecting plate and a piston rod to move downwards, a piston plate moves downwards in a piston barrel, lubricating oil in the piston barrel is extruded, so that the pressure in the piston barrel is increased, and when the pressure reaches the threshold value of a filling pipe, the filling pipe is automatically opened; and the lubricating oil in the piston cylinder is automatically injected into the speed reducer main body, so that the lubricating oil is automatically injected into the speed reducer main body, and the situation that the lubricating oil is scattered due to the fact that hole positions are inconvenient to align during oil injection is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lubricating structure for speed reducer belongs to speed reducer lubricating technical field. BACKGROUND

[0002] Speed reducer is a common transmission device, used to reduce the speed of motor and provide greater torque output. During the operation of the speed reducer, the lubricating oil needs to be replaced frequently to reduce the friction between the teeth, ensure its normal operation and prolong its service life. Therefore, whether the oil change maintenance of the speed reducer is efficient and convenient, whether it can reduce the oil spillage and improve the cleanliness, directly affects the maintenance cycle of the speed reducer and the cleanliness of the equipment environment.

[0003] But the prior art still has great deficiencies, such as:

[0004] In the prior art: the commonly used speed reducer is filled by opening an oil injection hole on the box body, which is not only easy to process, but also has low processing cost; but since the oil injection hole is located at the top of the box body, it is not convenient to align the hole position when filling oil, and the lubricating oil is easy to spill, resulting in waste of lubricating oil. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a lubricating structure for speed reducer to solve the problems raised in the above background.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a lubricating structure for speed reducer, comprising:

[0007] Speed reducer body;

[0008] Lubricating mechanism, arranged on one side of the top of the speed reducer body, for automatically injecting lubricating oil into the interior of the speed reducer body, and comprising a mounting plate mounted on one side of the top of the speed reducer body, one side of the top of the mounting plate being mounted with an electric telescopic rod, the telescopic end of the electric telescopic rod being fixedly mounted with a connecting plate, one side of the bottom of the connecting plate being mounted with an injection assembly for injecting lubricating oil into the speed reducer body.

[0009] Preferably, the injection assembly comprises a piston cylinder mounted on one side of the top of the mounting plate, the top end of the piston cylinder being penetrated and mounted with a piston rod, one end of the piston rod located outside the piston cylinder being fixedly connected with one side of the bottom of the connecting plate, one end of the piston rod located inside the piston cylinder being fixedly mounted with a piston plate, the bottom end of the piston cylinder being communicated with an injection pipe, the bottom end of the injection pipe penetrating the mounting plate and extending into the interior of the speed reducer body.

[0010] Preferably, the bottom of the piston barrel inner cavity is rotatably provided with a rotating rod, the top end of the rotating rod penetrates the piston plate and the piston rod in sequence and extends to the inside of the piston rod, the bottom of the surface of the rotating rod is fixedly provided with a stirring blade, the top of the piston plate is provided with a through hole, the surface of the rotating rod is provided with an arc-shaped groove, one side of the inner wall of the through hole is fixedly provided with a protrusion, and the protrusion and the arc-shaped groove are in sliding connection.

[0011] Preferably, the bottom of the main body of the speed reducer is fixedly provided with a guide receiving shell, one side of the guide receiving shell is communicated with a second connecting pipe, one end of the second connecting pipe away from the guide receiving shell penetrates the main body of the speed reducer and extends to the outside of the main body of the speed reducer, and one end of the second connecting pipe outside the main body of the speed reducer is communicated with a collecting box.

[0012] Preferably, the top of one side of the piston barrel is communicated with a one-way valve, the one-way valve is flange-connected with a first connecting pipe away from the piston barrel, and one end of the first connecting pipe away from the one-way valve is in communication with an external lubricating oil delivery pipe.

[0013] Preferably, the top of the mounting plate is provided with bolts around, and the mounting plate and the main body of the speed reducer are connected through the bolts.

[0014] Preferably, a rotary seal is arranged at the penetration position of the piston barrel and the piston rod, and the rotary seal is made of rubber.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. By arranging the lubricating mechanism, when the inside of the main body of the speed reducer is filled with oil, the electric telescopic rod drives the connecting plate and the piston rod to move downward, the piston plate moves downward in the inside of the piston barrel, the lubricating oil in the inside of the piston barrel is extruded to increase the pressure in the inside of the piston barrel, when the pressure reaches the threshold value of the filling pipe, the filling pipe is automatically opened, and the lubricating oil in the inside of the piston barrel is automatically filled into the inside of the main body of the speed reducer, so that the main body of the speed reducer is automatically filled with lubricating oil, and the hole position is not inconvenient to align when filling oil, so that the lubricating oil is not spilled;

[0017] 2. When the piston plate descends, the protrusion in the through hole cooperates with the arc-shaped groove, so that the piston plate drives the rotating rod and the stirring blade to rotate when the piston plate descends, the lubricating oil in the inside of the piston barrel is stirred, so that the lubricating oil in the inside of the piston barrel is not deposited, and the lubricating performance is not affected;

[0018] 3. When the inside of the speed reducer main body is filled with lubricating oil, too much lubricating oil on the gear surface inside the speed reducer main body will automatically drip into the inside of the guide receiving shell, and the lubricating oil is guided through the slope design at the bottom of the guide receiving shell, so that the lubricating oil automatically flows into the inside of the collection box through the second connecting pipe, thereby collecting the injected too much lubricating oil, and facilitating the subsequent workers to uniformly process. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the lubricating mechanism in the utility model;

[0021] Figure 3 It is a sectional view structural schematic diagram of the piston cylinder in the utility model;

[0022] Figure 4 It is a sectional view structural schematic diagram of the piston rod in the utility model;

[0023] Figure 5 It is an enlarged structural schematic diagram of A in the utility model; Figure 4

[0024] Figure 6 It is a sectional view structural schematic diagram of the speed reducer main body in the utility model.

[0025] In the drawing: 1, speed reducer main body; 2, lubricating mechanism; 21, mounting plate; 22, electric telescopic rod; 23, connecting plate; 24, filling assembly; 241, piston cylinder; 242, piston rod; 243, piston plate; 244, filling pipe; 245, rotating rod; 246, stirring blade; 247, through hole; 248, arc-shaped groove; 249, protruding block; 2401, one-way valve; 2402, first connecting pipe; 25, guide receiving shell; 26, second connecting pipe; 27, collection box; 28, bolt; 29, rotary seal. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a lubricating structure for speed reducer, comprising:

[0028] speed reducer main body 1;​

[0029] The lubricating mechanism 2 is arranged on one side of the top of the reducer body 1, and is used for automatically injecting lubricating oil into the interior of the reducer body 1, and comprises a mounting plate 21 mounted on one side of the top of the reducer body 1, a motorized telescopic rod 22 mounted on one side of the top of the mounting plate 21, a connecting plate 23 fixedly mounted at the telescopic end of the motorized telescopic rod 22, and a filling assembly 24 mounted on one side of the bottom of the connecting plate 23 and used for filling the lubricating oil into the reducer body 1.

[0030] Referring to Figure 2 and Figure 3 , the filling assembly 24 comprises a piston cylinder 241 mounted on one side of the top of the mounting plate 21, a piston rod 242 penetratingly mounted at the top end of the piston cylinder 241, one end of the piston rod 242 located outside the piston cylinder 241 being fixedly connected with one side of the bottom of the connecting plate 23, and a piston plate 243 fixedly mounted at one end of the piston rod 242 located inside the piston cylinder 241, and a filling pipe 244 in communication with the bottom end of the piston cylinder 241, the bottom end of the filling pipe 244 penetratingly passing through the mounting plate 21 and extending into the interior of the reducer body 1.

[0031] In this embodiment, the motorized telescopic rod 22 drives the connecting plate 23 to move downward, and drives the piston plate 243 to move inside the piston cylinder 241 through the fixed connection between the connecting plate 23 and the piston rod 242, so as to extrude the lubricating oil inside the piston cylinder 241 to increase the pressure inside the piston cylinder 241, and when the pressure reaches the threshold value of the filling pipe 244, the filling pipe 244 is automatically opened to automatically inject the lubricating oil inside the piston cylinder 241 into the interior of the reducer body 1.

[0032] The above-mentioned filling pipe 244 is jointly constituted by a pipeline and a pressure opening valve, so as to avoid the leakage of the reducer body 1 when it is not necessary to fill the lubricating oil, and to avoid the waste of the lubricating oil.

[0033] Referring to Figure 3 , Figure 4 , and Figure 5 , a rotating rod 245 is rotatably mounted at the bottom of the inner cavity of the piston cylinder 241, the top end of the rotating rod 245 penetratingly passes through the piston plate 243 and the piston rod 242 in sequence and extends into the interior of the piston rod 242, stirring blades 246 are fixedly mounted on the surface of the rotating rod 245 at the bottom, a through hole 247 is formed at the top of the piston plate 243, an arc-shaped groove 248 is formed on the surface of the rotating rod 245, a protruding block 249 is fixedly mounted on one side of the inner wall of the through hole 247, and the protruding block 249 and the arc-shaped groove 248 are in sliding connection.

[0034] In the embodiment, when the piston plate 243 is lowered, the protrusion 249 inside the through hole 247 cooperates with the arc-shaped groove 248 to drive the rotating rod 245 and the stirring blade 246 to rotate, so that the lubricating oil inside the piston cylinder 241 is stirred to avoid the lubricating oil inside the piston cylinder 241 from being deposited and affecting the lubricating performance.

[0035] Referring to Figure 1 and Figure 6 As shown in the figure, the bottom of the inner cavity of the speed reducer body 1 is fixedly provided with a guide receiving shell 25. One side of the guide receiving shell 25 is communicated with a second connecting pipe 26. One end of the second connecting pipe 26 away from the guide receiving shell 25 penetrates through the speed reducer body 1 and extends to the outside of the speed reducer body 1. One end of the second connecting pipe 26 located outside the speed reducer body 1 is communicated with a collection box 27.

[0036] In the embodiment, after the inside of the speed reducer body 1 is filled with lubricating oil, the excessive lubricating oil on the gear surface in the inside of the speed reducer body 1 will automatically drip into the inside of the guide receiving shell 25, and the lubricating oil will be guided by the slope design at the bottom of the guide receiving shell 25, so that the lubricating oil automatically flows into the inside of the collection box 27 through the second connecting pipe 26 for collection.

[0037] Referring to Figure 2 As shown in the figure, the top of one side of the piston cylinder 241 is communicated with a one-way valve 2401. The flange of one end of the one-way valve 2401 away from the piston cylinder 241 is connected with a first connecting pipe 2402. One end of the first connecting pipe 2402 away from the one-way valve 2401 is communicated with an external lubricating oil conveying pipe.

[0038] In the embodiment, the one-way design of the first connecting pipe 2402 can avoid the leakage of the gas inside the piston plate 243 when the piston plate 243 is lowered, so that the pressure in the inside of the piston cylinder 241 is not affected. The first connecting pipe 2402 can be communicated with the external lubricating oil conveying pipe, so that the device can automatically fill the speed reducer body 1 with lubricating oil.

[0039] Referring to Figure 2 As shown in the figure, the periphery of the top of the mounting plate 21 is penetrated by a bolt 28. The mounting plate 21 and the speed reducer body 1 are connected through the bolt 28.

[0040] In the embodiment, when the lubricating mechanism 2 is damaged or blocked, the staff can disassemble and assemble the lubricating mechanism 2, so as to maintain the lubricating mechanism 2.

[0041] Referring to Figure 3 As shown in the figure, a rotary seal 29 is installed at the penetration of the piston cylinder 241 and the piston rod 242. The rotary seal 29 is made of rubber.

[0042] In the embodiment, the rotary seal 29 belongs to one kind of dynamic seal, and the rotary seal 29 is composed of a sliding ring filled with polytetrafluoroethylene and a rubber O-shaped ring providing elasticity, and is used for sealing rods, shafts, pins, rotary joints and the like with rotary or swing motion;

[0043] The through hole of the piston cylinder 241 and the piston rod 242 can be sealed, so that the lubricating oil does not leak through the gap between the two, and the internal pressure of the piston cylinder 241 is not affected.

[0044] Working principle: when the inside of the speed reducer main body 1 is filled with oil, the electric telescopic rod 22 works to drive the connecting plate 23 to move downward, and the connecting plate 23 is fixedly connected with the piston rod 242, so as to drive the piston plate 243 to move in the inside of the piston cylinder 241, so as to extrude the lubricating oil in the inside of the piston cylinder 241, so as to increase the pressure in the inside of the piston cylinder 241, and when the pressure reaches the threshold value of the filling pipe 244, the filling pipe 244 is automatically opened, and the lubricating oil in the inside of the piston cylinder 241 is automatically filled into the inside of the speed reducer main body 1, so as to fill the lubricating oil in the inside of the speed reducer; and when the piston plate 243 descends, the protrusion 249 in the through hole 247 cooperates with the arc-shaped groove 248, so that the piston plate 243 drives the rotating rod 245 and the stirring blade 246 to rotate when descending, and the lubricating oil in the inside of the piston cylinder 241 is stirred;

[0045] After the inside of the speed reducer main body 1 is filled with lubricating oil, the excessive lubricating oil on the gear surface in the inside of the speed reducer main body 1 is automatically dropped into the inside of the guide containing shell 25, and the lubricating oil is guided through the inclined surface design at the bottom of the guide containing shell 25, so that the lubricating oil is automatically flowed into the inside of the collecting box 27 through the second connecting pipe 26 and is collected.

[0046] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A lubricating structure for a speed reducer characterized by comprising: Include: Speed reducer body (1); Lubricating mechanism (2) is arranged on one side of the top of the speed reducer body (1) for automatically injecting lubricating oil into the speed reducer body (1), and comprises a mounting plate (21) mounted on one side of the top of the speed reducer body (1), one side of the top of the mounting plate (21) is mounted with an electric telescopic rod (22), the telescopic end of the electric telescopic rod (22) is fixedly mounted with a connecting plate (23), one side of the bottom of the connecting plate (23) is mounted with a filling assembly (24) for filling lubricating oil into the speed reducer body (1); The filling assembly (24) comprises a piston cylinder (241) mounted on one side of the top of the mounting plate (21), the top end of the piston cylinder (241) penetrates and is mounted with a piston rod (242), one end of the piston rod (242) located outside the piston cylinder (241) is fixedly connected with one side of the bottom of the connecting plate (23), one end of the piston rod (242) located inside the piston cylinder (241) is fixedly mounted with a piston plate (243), the bottom end of the piston cylinder (241) is communicated with a filling pipe (244), the bottom end of the filling pipe (244) penetrates the mounting plate (21) and extends into the speed reducer body (1); The bottom of the inner cavity of the piston cylinder (241) is rotatably mounted with a rotating rod (245), the top end of the rotating rod (245) penetrates the piston plate (243) and the piston rod (242) in sequence and extends into the inside of the piston rod (242), the bottom of the surface of the rotating rod (245) is fixedly mounted with a stirring blade (246), the top of the piston plate (243) is provided with a through hole (247), the surface of the rotating rod (245) is provided with an arc-shaped groove (248), one side of the inner wall of the through hole (247) is fixedly mounted with a protrusion (249), and the protrusion (249) and the arc-shaped groove (248) are in sliding connection.

2. The lubrication structure for a speed reducer according to claim 1, characterized by: The bottom of the inner cavity of the speed reducer body (1) is fixedly mounted with a guide receiving shell (25), one side of the guide receiving shell (25) is communicated with a second connecting pipe (26), one end of the second connecting pipe (26) away from the guide receiving shell (25) penetrates the speed reducer body (1) and extends to the outside of the speed reducer body (1), and one end of the second connecting pipe (26) located outside the speed reducer body (1) is communicated with a collecting box (27).

3. The lubrication structure for a speed reducer according to claim 1, characterized by: The top of one side of the piston cylinder (241) is communicated with a one-way valve (2401), one end of the one-way valve (2401) away from the piston cylinder (241) is flange-connected with a first connecting pipe (2402), and one end of the first connecting pipe (2402) away from the one-way valve (2401) is communicated with an external lubricating oil conveying pipe.

4. The lubrication structure for a speed reducer according to claim 1, characterized by: The mounting plate (21) is connected with the speed reducer body (1) through the bolts (28).

5. The lubrication structure for a speed reducer according to claim 1, characterized by: The penetration between the piston cylinder (241) and the piston rod (242) is mounted with a rotary seal (29), and the material of the rotary seal (29) is a rubber member.

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