Distributed electric drive speed reducer lubricating structure

Abstract

The utility model relates to the technical field of speed reducer lubrication, in particular to a distributed electric drive speed reducer lubrication structure which comprises a speed reducer shell, and a front side lubrication structure, a middle side lubrication structure and a rear side lubrication structure are installed in the speed reducer shell. The front side lubricating structure comprises a front end cover, an input shaft oil spraying pipe, a first-stage gear and a first-stage bearing. The interior of the speed reducer shell is divided into the front side lubricating structure, the middle side lubricating structure and the rear side lubricating structure, the lubricating structures at the corresponding positions are all provided with the directional oil spraying pipelines, lubricating oil can be accurately and rapidly conveyed to a machine part needing to be lubricated for active lubrication, the time of the lubricating oil conveying process can be saved, and the lubricating efficiency is improved. According to the speed reducer, the lubricating operation efficiency is improved, the loss during oil stirring can be reduced, the structure is simple and easy to understand, multiple components in the shell can be lubricated more sufficiently, and the efficiency and reliability of the speed reducer are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reducer lubrication technical field especially relates to a kind of distributed electric drive reducer lubrication structure. BACKGROUND

[0002] Speed reducer is important mechanical component between prime mover and working machine or actuator, and is widely used in modern machinery. The lubrication system of the reducer on the market is to add quantitative lubricating oil in the reducer, and the gear pair is rotated at high speed by immersing in oil, to form splash oil, to achieve the effect of lubricating the internal parts of reducer assembly.

[0003] But the reducer of prior art usually adopts the way of stirring oil lubrication, and its inside will be thrown up and splash to each lubricating part lubrication, which, when the internal gear stirs oil transmission, cannot quickly input lubricating oil to corresponding machine parts, but needs a transmission process to lubricate corresponding machine parts, so that the amount of oil required by the way is large, not only waste lubricating oil, but also transmission process needs certain time, lubrication efficiency is poor, and there is the hidden trouble of machine lubrication.

[0004] Based on the above background, a kind of distributed electric drive reducer lubrication structure is proposed to solve the problems. INVENTION CONTENTS

[0005] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and the drawings attached to the written description.

[0006] The utility model aims at overcoming the above-mentioned insufficient, provide a kind of distributed electric drive reducer lubrication structure.

[0007] To achieve the above object, the technical scheme of the utility model is: a lubricating structure of a distributed electric drive speed reducer, comprising: a reducer housing, the reducer housing is respectively provided with front side lubricating structure, middle side lubricating structure and rear side lubricating structure; wherein the front side lubricating structure comprises a front end cover, an input shaft oil injection pipe, a primary gear and a primary bearing, the input shaft oil injection pipe is inserted into the front end cover and the oil injection port is opposite to the primary bearing, and the primary gear is arranged on the front end cover and is coaxially arranged with the primary bearing; the middle side lubricating structure comprises an intermediate shaft oil injection pipe, a secondary gear and an intermediate shaft, the intermediate shaft oil injection pipe is inserted into the reducer housing and the oil injection port is opposite to the meshing position of the secondary gear and the gear on the intermediate shaft; the rear side lubricating structure comprises a gear ring support, a reducer housing oil hole, an output shaft oil injection pipe and a planetary gear set, the planetary gear set is arranged on the gear ring support, the gear ring support is provided with the reducer housing oil hole, and the output shaft oil injection pipe is arranged around the reducer housing oil hole and the oil injection port of the output shaft oil injection pipe is opposite to the planetary gear set.

[0008] In some embodiments, the front end cover is arranged at the front end of the reducer housing.

[0009] In some embodiments, the input shaft oil injection pipe is fixedly arranged on the front end cover by means of bolt insertion.

[0010] In some embodiments, the intermediate shaft is arranged at the middle part of the reducer housing.

[0011] In some embodiments, the gear ring support is arranged at the rear side inside the reducer housing.

[0012] In some embodiments, the output shaft oil injection pipe has three and is arranged around the reducer housing oil hole.

[0013] In some embodiments, the planetary gear set comprises a gear ring, a planetary carrier oil collecting ring, a secondary bearing, a planetary carrier bearing, a planetary wheel pin shaft, a planetary wheel and a planetary carrier, the planetary carrier is arranged on the gear ring support, the planetary wheel is rotatably arranged on the planetary carrier, the planetary wheel pin shaft is connected with the planetary wheel, the planetary carrier bearing is connected with the planetary carrier, the secondary bearing is arranged at one side of the gear ring, and the planetary carrier oil collecting ring is arranged on the planetary carrier.

[0014] In some embodiments, one of the three output shaft oil injection pipes has an oil injection port opposite to the planetary carrier oil collecting ring, the lubricating oil collected by the planetary carrier oil collecting ring flows into the inner hole of the planetary wheel pin shaft, another oil injection port is opposite to the bearing at the rear end of the reducer housing, and the other oil injection port is opposite to the secondary bearing.

[0015] By adopting the technical scheme, the beneficial effects of the utility model are that: the utility model has three structures of front side lubricating structure, middle side lubricating structure and rear side lubricating structure in the reducer shell, the lubricating structure of the corresponding position has directional oil injection pipeline, can accurately and quickly deliver lubricating oil to the required lubricating machine part for its active lubrication, which not only can save the time of lubricating oil transmission process, increase lubricating operation efficiency, but also can reduce the loss when stirring oil, the structure is simple and easy to understand, can make the shell more fully lubricated, effectively improve the efficiency and reliability of the reducer.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0017] It is obvious that the above purposes and other purposes of the utility model will become more apparent after the description of the preferred embodiments of the utility model in the following various drawings and drawings.

[0018] In order to make the above beneficial effects and other purposes, features and advantages of the utility model more apparent, easy to understand, one or more preferred embodiments are described below, and the drawings are shown, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation of the utility model.

[0020] In the drawings, the same parts use the same reference signs, and the drawings are schematic, and are not necessarily drawn according to the actual proportion.

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description can obtain other drawings according to the drawings for the ordinary skilled in the art without creating labor.

[0022] Main drawing mark explanation:

[0023] Figure 1 It is the structure schematic view of the middle side lubricating structure of the reducer of the utility model;

[0024] Figure 2 It is the structure schematic view of the rear side lubricating structure of the reducer of the utility model;

[0025] Figure 3 It is the structure schematic view of the front side lubricating structure of the reducer of the utility model; Figure 2 It is the local enlarged structure schematic view of A in the utility model;

[0026] Figure 4 It is the cross section structure schematic drawing of planetary row assembly of the utility model;

[0027] Figure 5 It is the structure schematic drawing of front side lubricating structure of the utility model speed reducer.

[0028] Main figure mark explanation: speed reducer shell-1, front end cover-2, input shaft oil injection pipe-3, primary gear-4, primary bearing-5, intermediate shaft oil injection pipe-6, secondary gear-7, intermediate shaft-8, gear ring support-9, speed reducer shell oil hole-10, output shaft oil injection pipe-11, planetary row assembly-12, gear ring-13, planet carrier oil collecting ring-14, secondary bearing-15, planet carrier bearing-16, planet wheel pin shaft-17, planet wheel-18, planet carrier-19. DETAILED DESCRIPTION

[0029] The implementation of the utility model will be explained in detail in combination with the drawings and examples, by which the process of how to apply technical means to solve technical problems and achieve technical effects of the utility model can be fully understood and implemented. It should be noted that, as long as there is no conflict, each embodiment in the utility model and each feature in each embodiment can be combined with each other, and the formed technical scheme is within the protection scope of the utility model.

[0030] Meanwhile, in the following description, many specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. However, it is apparent to one skilled in the art that the utility model can be implemented without the specific details or in a manner different from the specific ways described.

[0031] Please refer to Figures 1-5The utility model provides a kind of distributed electric drive reduction gear lubrication structure, comprising: reduction gear casing 1, reduction gear casing 1 is respectively equipped with front side lubrication structure, middle side lubrication structure, rear side lubrication structure;Wherein, front side lubrication structure includes front end cover 2, input shaft oil injection pipe 3, primary gear 4, primary bearing 5, input shaft oil injection pipe 3 is inserted on front end cover 2 and oil injection port is opposite primary bearing 5, primary gear 4 is arranged on front end cover 2 and is coaxially installed with primary bearing 5;Middle side lubrication structure includes intermediate shaft oil injection pipe 6, secondary gear 7, intermediate shaft 8, intermediate shaft oil injection pipe 6 is inserted into reduction gear casing 1 and oil injection port is opposite secondary gear 7 and the gear meshing place on intermediate shaft 8;Rear side lubrication structure includes gear ring support 9, reduction gear casing oil hole 10, output shaft oil injection pipe 11, planetary row assembly 12, planetary row assembly 12 is installed on gear ring support 9, gear ring support 9 is equipped with reduction gear casing oil hole 10, reduction gear casing oil hole 10 periphery is equipped with output shaft oil injection pipe 11 and output shaft oil injection pipe 11 oil injection port is opposite planetary row assembly 12.

[0032] When using, reduction gear casing 1 is divided into front side lubrication structure, middle side lubrication structure, rear side lubrication structure three structures, when lubricating the front side internal mechanism, by input shaft oil injection pipe 3 on front end cover 2 injection, input shaft oil injection pipe 3 will be directional to primary bearing 5 Oil injection, the required lubrication mechanism in front side lubrication structure is lubricated correspondingly, when lubricating middle side lubrication structure, by intermediate shaft oil injection pipe 6 on reduction gear casing 1 injection, intermediate shaft oil injection pipe 6 will be directional to the meshing place between intermediate shaft 8 and secondary gear 7 Oil injection, so that the required lubrication mechanism in middle side lubrication structure is lubricated correspondingly, when lubricating rear side lubrication structure, by reduction gear casing oil hole 10 on the outside of reduction gear casing 1 injection, lubricating oil will flow out through reduction gear casing oil hole 10 and divide to peripheral output shaft oil injection pipe 11, output shaft oil injection pipe 11 will be directional to planetary row assembly 12 Oil injection, so that the required lubrication mechanism in rear side lubrication structure is lubricated correspondingly, to realize that the mechanism required to be lubricated in front, middle and rear of reduction gear casing 1 can be directional lubrication.

[0033] According to some embodiments of the application, the front end cover 2 is installed at the front end of the reduction gear casing 1. It has the effect of installing the front side lubrication structure at the front end of the reduction gear casing 1.

[0034] According to some embodiments of the application, the input shaft oil injection pipe 3 is fixed on the front end cover 2 by bolt insertion. It has the effect of enabling the input shaft oil injection pipe 3 to be quickly attached and detached from the front end cover 2, and the lubricating oil can be poured into the input shaft oil injection pipe 3 from the outside of the front end cover 2.

[0035] According to some embodiments of the present application, the intermediate shaft 8 is located in the middle of the reducer housing 1. It has the effect of distributing the intermediate shaft 8 in the side of the reducer housing 1.

[0036] According to some embodiments of the present application, the ring gear support 9 is arranged in the rear side of the reducer housing 1. It has the effect of installing the rear side lubrication structure on the rear side of the reducer housing 1.

[0037] According to some embodiments of the present application, the output shaft oil injection pipe 11 has three and is arranged around the reducer housing oil hole 10. It has the effect of dispersing the lubricating oil flowing out of the reducer housing oil hole 10, thereby delivering the injection to the corresponding machine parts.

[0038] According to some embodiments of the present application, the planetary gear assembly 12 includes a ring gear 13, a planet carrier oil collecting ring 14, a secondary bearing 15, a planet carrier bearing 16, a planet pin shaft 17, a planet wheel 18, and a planet carrier 19. The planet carrier 19 is installed on the ring gear support 9. The planet wheel 18 is rotatably arranged on the planet carrier 19. The planet pin shaft 17 is connected to the planet wheel 18. The planet carrier bearing 16 is connected to the planet carrier 19. The secondary bearing 15 is located on one side of the ring gear 13. The planet carrier oil collecting ring 14 is installed on the planet carrier 19. One of the three output shaft oil injection pipes 11 has an oil injection port respectively opposite to the planet carrier oil collecting ring 14. The lubricating oil collected by the planet carrier oil collecting ring 14 flows into the inner hole of the planet pin shaft 17. Another oil injection port is opposite to the bearing at the rear end of the reducer housing 1. Another oil injection port is opposite to the secondary bearing 15. The lubricating oil flowing out of the reducer housing oil hole 10 passes through the three output shaft oil injection pipes 11 and is directed to the planet carrier oil collecting ring 14, the bearing, and the secondary bearing 15, respectively. It has the effect of realizing multi-directional delivery of one oil path, so that the multiple machine parts required to be lubricated in the planetary gear assembly 12 can be quickly lubricated without the need for additional oil injection ports. The structure is simple and easy to understand, and is more convenient for production.

[0039] It should be understood that the embodiments disclosed in the present application are not limited to the specific processing steps or materials disclosed herein, but should extend to such equivalent alternatives of the features understood by those skilled in the related art. It should also be understood that the terms used herein are for the purpose of describing specific embodiments only and do not mean limitation.

[0040] The "embodiments" mentioned in the specification mean that the specific features or characteristics described in connection with the embodiments are included in at least one embodiment of the present application. Therefore, the phrase or "embodiments" appearing throughout the specification does not necessarily mean the same embodiment.

[0041] Moreover, the described features or characteristics can be combined in any other suitable manner in one or more embodiments. In the above description, some specific details are provided for the purpose of providing a thorough understanding of embodiments of the application. However, persons of ordinary skill in the relevant art will appreciate that the application can be practiced without one or more of the specific details, or with other methods, components, materials, etc.

Claims

1. A lubrication structure of a distributed electric drive retarder, characterized by, The application relates to a lubricating structure of a reducer. The lubricating structure comprises a reducer shell (1), front-side lubricating structure, middle-side lubricating structure and rear-side lubricating structure which are respectively arranged in the reducer shell (1); wherein, The front-side lubricating structure comprises a front end cover (2), an input shaft oil injection pipe (3), a first-stage gear (4) and a first-stage bearing (5), the input shaft oil injection pipe (3) is inserted into the front end cover (2) and the oil injection port of the input shaft oil injection pipe (3) is opposite to the first-stage bearing (5), and the first-stage gear (4) is arranged on the front end cover (2) and coaxially arranged with the first-stage bearing (5); The middle-side lubricating structure comprises an intermediate shaft oil injection pipe (6), a second-stage gear (7) and an intermediate shaft (8), the intermediate shaft oil injection pipe (6) is inserted into the reducer shell (1) and the oil injection port of the intermediate shaft oil injection pipe (6) is opposite to the meshing position of the second-stage gear (7) and the gear on the intermediate shaft (8); The rear-side lubricating structure comprises a gear ring support (9), a reducer shell oil hole (10), an output shaft oil injection pipe (11) and a planetary gear set (12), the planetary gear set (12) is arranged on the gear ring support (9), the gear ring support (9) is provided with the reducer shell oil hole (10), the output shaft oil injection pipe (11) is arranged around the reducer shell oil hole (10) and the oil injection port of the output shaft oil injection pipe (11) is opposite to the planetary gear set (12).

2. The lubrication structure of a distributed electric drive reducer according to claim 1, characterized in that, The front end cover (2) is arranged on the front end of the reducer shell (1).

3. The lubrication structure of a distributed electric drive reducer according to claim 1, characterized in that, The input shaft oil injection pipe (3) is fixed on the front end cover (2) by means of bolt insertion.

4. The lubrication structure of a distributed electric drive reducer according to claim 1, characterized in that, The intermediate shaft (8) is arranged in the middle of the reducer shell (1).

5. The lubrication structure of a distributed electric drive reducer according to claim 1, characterized in that, The gear ring support (9) is arranged on the rear side of the reducer shell (1).

6. The lubrication structure of a distributed electric drive reducer according to claim 5, characterized in that, The output shaft oil injection pipe (11) has three pipes and is arranged around the reducer shell oil hole (10).

7. The lubrication structure of a distributed electric drive reducer according to claim 6, characterized in that, The planetary gear set (12) comprises a gear ring (13), a planetary carrier oil collecting ring (14), a second-stage bearing (15), a planetary carrier bearing (16), a planetary wheel pin shaft (17), a planetary wheel (18) and a planetary carrier (19), the planetary carrier (19) is arranged on the gear ring support (9), the planetary wheel (18) is rotatably arranged on the planetary carrier (19), the planetary wheel pin shaft (17) is connected with the planetary wheel (18), the planetary carrier bearing (16) is connected with the planetary carrier (19), the second-stage bearing (15) is arranged on one side of the gear ring (13), and the planetary carrier oil collecting ring (14) is arranged on the planetary carrier (19).

8. The lubrication structure of a distributed electric drive reducer according to claim 7, characterized in that, The oil injection port of one of the three output shaft oil injection pipes (11) is opposite to the planetary carrier oil collecting ring (14), the lubricating oil collected by the planetary carrier oil collecting ring (14) flows into the inner hole of the planetary wheel pin shaft (17), the oil injection port of another output shaft oil injection pipe is opposite to the bearing on the rear end of the reducer shell (1), and the oil injection port of the other output shaft oil injection pipe is opposite to the second-stage bearing (15).

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