Gear reducer with lubricating structure

By installing a cooling mechanism and an oil injection circulation mechanism inside the reducer, the problem of reduced lubricating oil performance caused by excessive temperature is solved, achieving effective cooling and recycling of the lubricating oil and extending the service life of the internal components of the reducer.

CN223662518UActive Publication Date: 2025-12-12QINGDAO HAILIDA GEAR CASE CO LTD
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Patent Information

Application Number
CN202520235127.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-12-12
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

The existing speed reducer has an excessively high internal temperature during operation, which causes the lubricating oil temperature to rise, reduces the lubrication effect, and affects the service life of internal components.

Method used

A cooling mechanism is installed to exchange heat between the coolant flowing inside the heat exchange tubes and the lubricating oil. Combined with an oil injection circulation mechanism and a measuring mechanism, the lubricating oil is cooled and recycled.

Benefits of technology

It improves the lubrication effect of the lubricating oil, extends the service life of the internal components of the reducer, and makes it easier for operators to monitor the oil condition.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of speed reducers, and particularly relates to a gear speed reducer with a lubricating structure, which comprises a speed reducer shell, a lubricating device is arranged in the speed reducer shell, the lubricating device comprises a cooling mechanism, an oil injection circulating mechanism and a measuring mechanism, the cooling mechanism is arranged at the lower end in the speed reducer shell, and the oil injection circulating mechanism is arranged in the speed reducer shell. The oil injection circulating mechanism is arranged on the back face of the speed reducer shell, and the measuring mechanism is arranged on the back face of the speed reducer shell. According to the gear speed reducer with the lubricating structure, the cooling mechanism is arranged, cooling liquid flows in the heat exchange pipe and exchanges heat with lubricating oil, cooling of the lubricating oil is achieved, the lubricating effect of the lubricating oil is improved, and the problem that in the background technology, in the using process, due to the fact that the internal temperature of the speed reducer is too high during operation, and the lubricating oil lubricates the speed reducer is solved. When the lubricating oil is recycled again, the lubricating effect is reduced due to the fact that the temperature of the lubricating oil is too high, and the service life of internal elements of the speed reducer is affected.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of speed reducer, concretely is a gear speed reducer with lubricating structure. BACKGROUND

[0002] The surface of the existing speed reducer will be worn after a long time of use, and in order to make the speed reducer last longer, the instrument needs to be lubricated to reduce the friction between the instruments.

[0003] However, the existing lubricating structure can not be used repeatedly when lubricating the speed reducer, which not only causes waste, but also causes damage to the speed reducer due to the accumulation of too much lubricating oil inside the speed reducer, thus there is room for improvement.

[0004] As disclosed in the publication No. CN219366768U, a speed reducer with internal lubricating structure is provided, which comprises a filter structure, a guide plate, an oil collection pipe, an oil pump, an oil inlet of the oil pump, an oil extraction pipe, a filter screen, an oil inlet pipe, an oil tank, a sealing screw, a drive rod, a connecting rod and a scraper.

[0005] However, the device has the problem that the surface temperature of the speed reducer will rise when the lubricating oil is used again, which will affect the service life of the internal components of the speed reducer.

[0006] Therefore, it is necessary to provide a gear speed reducer with lubricating structure. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a gear speed reducer with lubricating structure to solve the problem of the service life of the internal components of the speed reducer being affected by the high temperature of the lubricating oil when it is used again.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a gear reducer with lubricating structure, including the reducer shell, the inside of reducer shell is provided with lubricating device, lubricating device includes cooling mechanism, oil injection circulation mechanism and measuring mechanism.

[0009] Cooling mechanism sets up in the inside lower extreme of reducer shell, oil injection circulation mechanism sets up in the back of reducer shell, measuring mechanism sets up in the back of reducer shell.

[0010] Cooling mechanism includes water tank, pump body no. 1, inlet pipe, heat exchange pipe, outlet pipe and valve, water tank is installed in the back lower extreme of reducer shell, pump body no. 1 is installed in the right side of water tank, inlet pipe is connected to the output end of pump body no. 1, heat exchange pipe is connected to the one end of inlet pipe away from pump body no. 1 and is located in the inside lower extreme of reducer shell, outlet pipe is connected to the one end of heat exchange pipe away from inlet pipe, valve is installed in the outside of outlet pipe.

[0011] Preferably, the inside of the water tank contains cooling liquid, which is pumped into the heat exchange pipe through the inlet pipe, thereby cooling the lubricating oil inside the reducer shell.

[0012] Preferably, the heat exchange pipe is curved and distributed at the bottom of the reducer shell, increasing the length of the heat exchange pipe inside the reducer shell and thereby improving the heat exchange efficiency of the lubricating oil.

[0013] Preferably, the oil injection circulation mechanism includes an oil tank, a pump body no. 2, an oil outlet pipe, a spray head, a flow guide cover, a filter screen, a pump body no. 3, and a return pipe. The oil tank is installed on the back of the reducer shell. The pump body no. 2 is installed on the top of the oil tank. The oil outlet pipe is connected to the output end of the pump body no. 2. The spray head is installed at the bottom of the oil outlet pipe and located at the upper end inside the reducer shell. The flow guide cover is installed at the lower end inside the reducer shell. The filter screen is installed inside the flow guide cover. The pump body no. 3 is installed on the right side of the oil tank. The return pipe is connected to the output end of the pump body no. 3.

[0014] Preferably, the one end of the return pipe away from the pump body no. 3 is connected to the lower end of the reducer shell. By starting the pump body no. 3, the lubricating oil cooled inside the reducer shell is pumped into the oil tank through the return pipe, realizing the circulation use of the lubricating oil.

[0015] Preferably, the measuring mechanism includes a connecting port, a measuring scale, and a top cap. The connecting port is fixedly installed on the top of the oil tank. The measuring scale is installed inside the oil tank. The top cap is fixedly installed on the top of the measuring scale.

[0016] Preferably, the connecting port is provided with external threads. The top cap is provided with internal threads, and the top cap is threadedly connected with the connecting port. By connecting the top cap with the connecting port, the measuring scale is installed in the oil tank, and the connecting port is sealed.

[0017] Compared with the prior art, the gear reducer with the lubricating structure has the beneficial effects that:

[0018] 1. The gear reducer with the lubricating structure, by setting the cooling mechanism, the cooling liquid flows in the heat exchange pipe and exchanges heat with the lubricating oil, realizes the cooling of the lubricating oil, improves the lubricating effect of the lubricating oil, solves the problem of the service life of the internal components of the reducer in the background art that the surface temperature of the reducer is increased after being lubricated by the lubricating oil due to the high internal temperature of the reducer during operation, and the lubricating effect of the lubricating oil is reduced due to the high temperature when the lubricating oil is used again, thereby affecting the service life of the internal components of the reducer.

[0019] 2. The gear reducer with the lubricating structure, by setting the measuring mechanism, the liquid level of the lubricating oil in the oil tank is measured by the measuring ruler, so that the operator can know the oil condition at any time. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a sectional view of the internal structure of the reducer shell of the utility model;

[0021] Figure 2 is a rear view of the reducer shell of the utility model;

[0022] Figure 3 is a split view of the connection between the measuring mechanism and the oil tank of the utility model;

[0023] Figure 4 is a partial structure schematic view of the oil injection circulating mechanism of the utility model.

[0024] In the figure: 1, reducer shell; 201, water tank; 202, pump body one; 203, water inlet pipe; 204, heat exchange pipe; 205, water outlet pipe; 206, valve; 301, oil tank; 302, pump body two; 303, oil outlet pipe; 304, spray head; 305, fairing; 306, filter screen; 307, pump body three; 308, return pipe; 401, connecting port; 402, measuring ruler; 403, top hat. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] Embodiment one;

[0027] Based on the prior art, the temperature of the lubricating oil is too high when the lubricating oil lubricates the reducer, which affects the service life of the internal components of the reducer. Referring to Figures 1-4 The embodiment provides a gear reducer with a lubricating structure, which can cool the lubricating oil and improve the lubricating effect of the lubricating oil. The gear reducer with the lubricating structure comprises a reducer shell 1, a lubricating device arranged in the reducer shell 1, and the lubricating device comprises a cooling mechanism, an oil injection circulation mechanism and a measuring mechanism.

[0028] The cooling mechanism is arranged at the lower end of the reducer shell 1, the oil injection circulation mechanism is arranged on the back of the reducer shell 1, and the measuring mechanism is arranged on the back of the reducer shell 1.

[0029] The cooling mechanism comprises a water tank 201, a pump body 202, a water inlet pipe 203, a heat exchange pipe 204, a water outlet pipe 205 and a valve 206. The water tank 201 is installed at the lower end of the back of the reducer shell 1, and the water tank 201 contains cooling liquid. The cooling liquid in the water tank 201 flows into the heat exchange pipe 204 through the water inlet pipe 203 by starting the pump body 202, so that the lubricating oil in the reducer shell 1 is heat exchanged, thereby realizing the cooling of the lubricating oil. The pump body 202 is installed on the right side of the water tank 201. The water inlet pipe 203 is connected to the output end of the pump body 202. The heat exchange pipe 204 is connected to one end of the water inlet pipe 203 away from the pump body 202 and is located at the lower end of the reducer shell 1. The heat exchange pipe 204 is arranged in a curved shape at the bottom of the reducer shell 1, so that the length of the heat exchange pipe 204 in the reducer shell 1 is increased, thereby improving the heat exchange efficiency of the lubricating oil. The water outlet pipe 205 is connected to one end of the heat exchange pipe 204 away from the water inlet pipe 203. The valve 206 is installed on the outside of the water outlet pipe 205.

[0030] Embodiment two:

[0031] On the basis of embodiment one, referring to Figures 1-4, in order to realize the recycling of lubricating oil, improve the utilization of lubricating oil, the device is also provided with a spray oil circulation mechanism, the spray oil circulation mechanism includes oil tank 301, pump body two 302, oil outlet pipe 303, spray head 304, flow guide cover 305, filter screen 306, pump body three 307 and backflow pipe 308, oil tank 301 is installed on the back of the speed reducer shell 1, pump body two 302 is installed on the top of oil tank 301, oil outlet pipe 303 is connected to the output end of pump body two 302, spray head 304 is installed at the bottom of oil outlet pipe 303 and located in the upper end of the speed reducer shell 1, flow guide cover 305 is installed at the lower end of the speed reducer shell 1, filter screen 306 is installed inside the flow guide cover 305, the used lubricating oil is filtered through the filter screen 306, to prevent impurities from entering the gear meshing surface and other parts, aggravate the wear, improve the lubricating effect and the service life of the gear reducer, pump body three 307 is installed on the right side of oil tank 301, backflow pipe 308 is connected to the output end of pump body three 307, the end of backflow pipe 308 away from pump body three 307 is connected with the lower end of speed reducer shell 1, by starting pump body three 307, the lubricating oil cooled in the speed reducer shell 1 is pumped into the oil tank 301 through backflow pipe 308, realizing the recycling of lubricating oil.

[0032] Example three:

[0033] On the basis of example one, please refer to Figures 1-4 , in order to facilitate the observation of the internal lubricating oil of oil tank 301, the lubricating oil level needs to be measured, therefore the device is also provided with a measuring mechanism, the measuring mechanism includes connecting port 401, scale 402 and top cap 403, connecting port 401 is fixedly installed on the top of oil tank 301, scale 402 is installed inside oil tank 301, top cap 403 is fixedly installed on the top of scale 402, connecting port 401 is provided with external thread, top cap 403 is provided with internal thread, and top cap 403 is threadedly connected with connecting port 401, by connecting top cap 403 with connecting port 401, scale 402 is installed in oil tank 301, and connecting port 401 is sealed at the same time.

[0034] In use, when the gear of the speed reducer needs to be lubricated, pump body two 302 is started, the lubricating oil in oil tank 301 is sprayed out by spray head 304 through oil outlet pipe 303, lubricating the gear, at the same time, the lubricating oil flows to the lower end of the speed reducer shell 1 after being filtered by filter screen 306 under the action of gravity, then pump body one 202 is started, the coolant in water tank 201 flows into heat exchange pipe 204 along water inlet pipe 203, heat exchange and cooling of the lubricating oil are carried out with the flow of the coolant, then pump body three 307 is started, the lubricating oil cooled in the speed reducer shell 1 is pumped into oil tank 301 through backflow pipe 308, realizing the recycling of lubricating oil.

[0035] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are used herein merely as labels, and are not intended to impose ordinal import.

Claims

1. A gear reducer with a lubrication structure, comprising a reducer housing (1), characterized in that: The reducer housing (1) is equipped with a lubrication device, which includes a cooling mechanism, an oil injection circulation mechanism and a measuring mechanism. The cooling mechanism is located at the lower end of the inside of the reducer housing (1), the oil injection circulation mechanism is located on the back of the reducer housing (1), and the measuring mechanism is located on the back of the reducer housing (1). The cooling mechanism includes a water tank (201), a pump body (202), an inlet pipe (203), a heat exchange pipe (204), an outlet pipe (205), and a valve (206). The water tank (201) is installed on the lower back of the reducer housing (1). The pump body (202) is installed on the right side of the water tank (201). The inlet pipe (203) is connected to the output end of the pump body (202). The heat exchange pipe (204) is connected to the end of the inlet pipe (203) away from the pump body (202) and located inside the lower end of the reducer housing (1). The outlet pipe (205) is connected to the end of the heat exchange pipe (204) away from the inlet pipe (203). The valve (206) is installed on the outside of the outlet pipe (205).

2. The gear reducer with a lubrication structure according to claim 1, characterized in that: The water tank (201) contains coolant.

3. A gear reducer with a lubrication structure according to claim 1, characterized in that: The heat exchange tubes (204) are distributed in a curved shape at the bottom of the inside of the reducer housing (1).

4. A gear reducer with a lubrication structure according to claim 1, characterized in that: The oil injection circulation mechanism includes an oil tank (301), a second pump body (302), an oil outlet pipe (303), a nozzle (304), a flow guide (305), a filter screen (306), a third pump body (307), and a return pipe (308). The oil tank (301) is installed on the back of the reducer housing (1). The second pump body (302) is installed on the top of the oil tank (301). The oil outlet pipe (303) is connected to the output end of the second pump body (302). The nozzle (304) is installed at the bottom of the oil outlet pipe (303) and located at the upper inside of the reducer housing (1). The flow guide (305) is installed at the lower inside of the reducer housing (1). The filter screen (306) is installed inside the flow guide (305). The third pump body (307) is installed on the right side of the oil tank (301). The return pipe (308) is connected to the output end of the third pump body (307).

5. A gear reducer with a lubrication structure according to claim 4, characterized in that: The end of the return pipe (308) away from the pump body (307) is connected to the lower end of the reducer housing (1).

6. A gear reducer with a lubrication structure according to claim 1, characterized in that: The measuring mechanism includes a connector (401), a measuring scale (402), and a top cap (403). The connector (401) is fixedly installed on the top of the oil tank (301), the measuring scale (402) is installed inside the oil tank (301), and the top cap (403) is fixedly installed on the top of the measuring scale (402).

7. A gear reducer with a lubrication structure according to claim 6, characterized in that: The connector (401) has an external thread, the cap (403) has an internal thread, and the cap (403) is threadedly connected to the connector (401).

Citation Information

Patent Citations

  • Speed reducer with inner lubricating structure

    CN219366768U