Planetary gear device

Abstract

The utility model discloses a planetary gear device, and relates to the technical field of planetary gears. The planetary reducer comprises an inner gear ring, mounting shells are arranged on the two sides of the inner gear ring in a mirroring mode, a driving wheel is arranged in the center of the inner gear ring, planetary gears are meshed between the driving wheel and the inner gear ring in a circumferential array mode, and support plates are arranged on the two sides of the driving wheel and the two sides of the planetary gears. A supporting shaft is fixedly installed between the support plates, and the planetary gear is movably connected to the side face of the supporting shaft in a sleeving mode. According to the utility model, the trigger rod in the trigger assembly triggers to be separated from the matching block, so that the trigger groove at the meshing part of the planetary gear, the driving wheel and the inner gear ring extrudes lubricating oil for fixed-point lubrication, the lubricating effect at the meshing part is ensured, the trigger assembly is matched with the oil injection assembly in a triggering manner, the lubricating effect is ensured, and the waste of the lubricating oil is reduced; and moreover, the viscosity of the meshing parts among the planetary gear, the driving wheel and the inner gear ring is not too large while lubrication is ensured, and the energy consumption of the motor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary gears, and particularly relates to a planetary gear device. Background Art

[0002] When transmitting power, planetary gear transmission can perform power splitting, and the input shaft and the output shaft are on the same horizontal line. Therefore, planetary gear transmission has now been widely used in reducers, speed increasers, and variable speed devices in various mechanical transmission systems. During the continuous operation of the planetary gear device, it is necessary to add lubricating oil between the gears in a timely manner to ensure smooth meshing between the gears. However, when adding lubricating oil, it is necessary to manually open the outer frame and add lubricating oil to its interior. It cannot add lubricating oil automatically when the planetary gears are working, resulting in the situation that the equipment must be shut down, or injecting lubricating oil into its interior through an oil pipe when it is working. Such a method cannot ensure that the lubricating oil effectively lubricates the gear meshing position, causing waste of lubricating oil use. Moreover, too much lubricating oil inside the device will also cause greater viscosity between gear meshing, and the external energy consumption loss requires the motor to release a greater power to drive. For this reason, a planetary gear device is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a planetary gear device to solve the problems of the planetary gear device.

[0004] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0005] A planetary gear device includes an internal gear ring. Installation shells are arranged on both sides of the internal gear ring in a mirror image manner. A driving wheel is arranged at the central position of the internal gear ring. Planetary gears are meshed in a circumferential array between the driving wheel and the internal gear ring. Support plates are arranged on both sides of the driving wheel and the planetary gears. A support shaft is fixedly installed between the support plates, and the planetary gears are movably sleeved on the side position of the support shaft. A first connecting shaft penetrating the installation shell is fixedly installed on the side of a group of support plates. A second connecting shaft penetrating the installation shell is fixedly installed on the side of the other group of support plates, and the driving wheel is fixedly sleeved on the side position of the second connecting shaft. An oil injection assembly capable of injecting oil is arranged at the side of the installation shell corresponding to the position of the second connecting shaft. A triggering assembly capable of triggering lubrication is arranged on the side of the planetary gear.

[0006] Further, the oil injection assembly includes a connecting cavity opened on the side of the support plate. A connecting plate is movably installed inside the connecting cavity. A fixing plate is fixedly installed on the side of the connecting plate. An oil injection block is threadedly installed on the side of the fixing plate. An extrusion plate is movably installed inside the fixing plate. Support plates are symmetrically and fixedly installed between the side of the extrusion plate and the inner side of the fixing plate. A conveying groove is opened on the side of the connecting plate.

[0007] Furthermore, the connecting plate extends through the installation shell, the fixing plate is fixedly installed on the side position of the installation shell, the oil injection block penetrates through the fixing plate to its internal position, the extrusion plate is attached to the inner wall position of the fixing plate, the extrusion plate is a circular ring plate made of hard rubber, and the support plate is a circular ring plate made of spring steel with a continuous "W"-shaped cross section.

[0008] Furthermore, the triggering assembly includes a cavity opened inside the support shaft, a connecting groove is opened on the inner wall of the cavity, a storage cavity is opened inside the planetary gear, and a linkage groove is opened on the inner wall of the storage cavity.

[0009] Furthermore, the triggering assembly further includes a triggering groove opened on the inner wall of the storage cavity, a triggering rod is movably installed inside the triggering groove, a matching block is fixedly installed on the inner wall of the triggering groove, and a support cylinder is fixedly connected between the side surface of the triggering rod and the inner wall of the triggering groove.

[0010] Furthermore, the linkage groove penetrates through the planetary gear, the support shaft to the inside of the cavity, the triggering groove is a cylindrical groove with a cross section in the shape of a cross, the triggering rod is a "T"-shaped rod with rectangular grooves equidistantly arranged on the side surface, the matching block is snap-fitted inside the rectangular groove of the triggering rod, the matching block is a circular ring block with continuous protrusions on the side surface, and the support cylinder is a cylindrical tube made of spring steel with a continuous "W"-shaped cross section.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the second connecting shaft is driven to make the driving wheel rotate. The driving wheel meshes with the planetary gear and is constrained by the internal gear ring to perform a meshing rotational motion. Through the provided oil injection assembly, external lubricating oil can be stored. When triggered, the extrusion plate inside the oil injection assembly is elastically supported by the support plate to squeeze the lubricating oil inside the fixing plate, so that the lubricating oil can be adaptively and evenly extruded. Through the provided triggering assembly, when the planetary gear meshes with the driving wheel and the internal gear ring, the triggering rod inside the triggering assembly is triggered to disengage from the matching block, so that the triggering groove at the meshing part of the planetary gear, the driving wheel and the internal gear ring extrudes lubricating oil for fixed-point lubrication, ensuring the lubrication effect at the meshing part. The triggering assembly cooperates with the triggering of the oil injection assembly, ensuring the lubrication effect, reducing the waste of lubricating oil, and ensuring that the viscosity at the meshing part between the planetary gear, the driving wheel and the internal gear ring is not too large, reducing the energy consumption of the motor. Description of the Drawings

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a partial exploded structural schematic diagram of the present utility model;

[0015] Figure 3 is a partial exploded structural schematic diagram of the oil injection assembly of the present utility model;

[0016] Figure 4 is a partial structural schematic diagram of the mounting case of the present utility model;

[0017] Figure 5 is the present utility model Figure 4 an enlarged structural schematic diagram of part A in;

[0018] Figure 6 is a partial structural schematic diagram of the planetary gear of the present utility model;

[0019] Figure 7 is the present utility model Figure 6 an enlarged structural schematic diagram of part B in.

[0020] Reference numerals: 1, internal gear ring; 2, mounting case; 3, driving wheel; 4, planetary gear; 5, support plate; 51, support shaft; 6, first connecting shaft; 7, second connecting shaft; 8, oil injection assembly; 801, connecting cavity; 802, connecting plate; 803, fixing plate; 804, oil injection block; 805, extrusion plate; 806, support plate; 807, conveying groove; 9, trigger assembly; 901, inner cavity; 902, connecting groove; 903, storage cavity; 904, linkage groove; 905, trigger groove; 906, trigger rod; 907, mating block; 908, support cylinder. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, 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 present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0023] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] As Figures 1 to 2 shown, a planetary gear device includes an internal gear ring 1, the internal gear ring 1 is a circular ring with teeth provided on the inner side. On both sides of the internal gear ring 1, mounting shells 2 are mirror-symmetrically arranged, and the mounting shells 2 are fixedly installed on the side position of the internal gear ring 1 through bolts. The mounting shells 2 are circular shells. At the central position of the internal gear ring 1, a driving wheel 3 is provided. The driving wheel 3 is a ring gear. Between the driving wheel 3 and the internal gear ring 1, planetary gears 4 are meshed in a circumferential array. The planetary gears 4 are ring gears. On both sides of the driving wheel 3 and the planetary gears 4, support plates 5 are provided. The support plates 5 are triangular plates. Between the support plates 5, a support shaft 51 is fixedly installed, and the planetary gears 4 are movably sleeved on the side position of the support shaft 51. The support shaft 51 is a cylindrical shaft with a cross-section in the shape of a cross. On the side of a group of support plates 5, a first connecting shaft 6 passing through the mounting shell 2 is fixedly installed. The first connecting shaft 6 is a cylindrical shaft with a cross-section in the shape of a convex character. On the side of the other group of support plates 5, a second connecting shaft 7 passing through the mounting shell 2 is fixedly installed, and the driving wheel 3 is fixedly sleeved on the side position of the second connecting shaft 7. The second connecting shaft 7 is a cylindrical shaft with a cross-section in the shape of a cross. At the position corresponding to the second connecting shaft 7 on the side of the mounting shell 2, an oil injection assembly 8 capable of injecting oil is provided. On the side of the planetary gears 4, a trigger assembly 9 capable of triggering lubrication is provided;

[0026] Specifically, through the provided oil injection assembly 8, oil can be injected and stored for self-adaptive extrusion and use of lubricating oil. Through the provided trigger assembly 9, when the planetary gears 4 are meshed with the driving wheel 3 and the internal gear ring 1, lubricating oil can be extruded in a trigger manner for lubrication, ensuring that the meshing parts of the planetary gears 4 with the driving wheel 3 and the internal gear ring 1 are lubricated in real time.

[0027] As Figure 2 - Figure 5As shown in the figure, the oil injection assembly 8 includes a connection cavity 801 formed on the side surface of the support plate 5 corresponding to the position of the second connecting shaft 7. The connection cavity 801 is an annular groove. A connection plate 802 is movably installed inside the connection cavity 801, and the connection plate 802 penetrates through the installation shell 2 and extends out. The connection plate 802 is an annular plate with a convex cross-section. A fixing plate 803 is fixedly installed on the side surface of the connection plate 802, and the fixing plate 803 is fixedly installed at the side position of the installation shell 2. The fixing plate 803 is an annular plate with a hollow interior. An oil injection block 804 is threadedly installed on the side surface of the fixing plate 803, and the oil injection block 804 penetrates through the fixing plate 803 to its internal position. The oil injection block 804 is a circular threaded block. An extrusion plate 805 is movably installed inside the fixing plate 803, and the extrusion plate 805 is attached to the inner wall of the fixing plate 803. The extrusion plate 805 is an annular plate made of hard rubber. Support plates 806 are symmetrically and fixedly installed between the side surface of the extrusion plate 805 and the inner side of the fixing plate 803. The support plates 806 are annular plates made of spring steel with a continuous "W" cross-section. Through grooves 807 are formed in a circumferential array and equidistantly on the side surface of the connection plate 802, penetrating through the fixing plate 803 to the inside of the fixing plate 803. The through grooves 807 are cylindrical grooves;

[0028] Specifically, by setting the oil injection block 804 to be detachable, lubricating oil is injected into the inside of the fixing plate 803 through a tool. The lubricating oil squeezes the extrusion plate 805 to slide, causing the support plate 806 to deform. During use, the extrusion plate 805 injects the lubricating oil into the inside of the connection cavity 801 through the through grooves 807 under the elastic support of the support plate 806, achieving an automatic and uniform oil injection operation.

[0029] Such as Figure 5 - Figure 7As shown, the trigger assembly 9 includes an inner cavity 901 opened inside the support shaft 51. The inner cavity 901 is a cylindrical cavity with a convex-shaped cross-section. A connecting groove 902 that penetrates the support shaft 51, the support plate 5 to the inside of the connecting cavity 801 is provided on the inner wall of the inner cavity 901. The connecting groove 902 is a cylindrical groove. A storage cavity 903 is opened inside the planetary gear 4. The storage cavity 903 is an annular cavity. Linkage grooves 904 are equidistantly arranged in a circumferential array on the inner wall of the storage cavity 903, and the linkage grooves 904 penetrate the planetary gear 4, the support shaft 51 to the inside of the inner cavity 901. The linkage grooves 904 are rectangular grooves. Trigger grooves 905 that penetrate the planetary gear 4 are equidistantly arranged in a circumferential array at the positions corresponding to the tooth roots of the planetary gear 4 on the inner wall of the storage cavity 903. The trigger grooves 905 are cylindrical grooves with a cross-section in the shape of a cross. A trigger rod 906 is movably installed inside the trigger grooves 905. The trigger rod 906 is a "T"-shaped rod with rectangular grooves equidistantly arranged on the side. A mating block 907 is fixedly installed on the inner wall of the trigger grooves 905, and the mating block 907 is snap-fitted inside the rectangular grooves of the trigger rod 906. The mating block 907 is an annular block with continuous protrusions on the side. A support cylinder 908 is fixedly connected between the side of the trigger rod 906 and the inner wall of the trigger grooves 905. The support cylinder 908 is a cylindrical tube made of spring steel with a cross-section in the shape of a continuous "W".

[0030] Specifically, when the trigger rod 906 is set and the planetary gear 4 meshes with the driving wheel 3 and the internal gear ring 1, the trigger rod 906 at the meshing position is squeezed and slides inside the trigger grooves 905, and the trigger rod 906 is separated from the mating block 907. The lubricating oil inside the connecting cavity 801 is introduced into the inner cavity 901 through the connecting groove 902. When the planetary gear 4 rotates on the side of the support shaft 51, the lubricating oil is gradually injected into the position inside the storage cavity 903 through the linkage grooves 904. When the trigger rod 906 is separated from the mating block 907, the trigger grooves 905 at this position are in a communicating state, and the lubricating oil is extruded from the corresponding trigger grooves 905 to lubricate the meshing positions of the planetary gear 4, the driving wheel 3, and the internal gear ring 1.

[0031] In summary: By driving the second connecting shaft 7 provided, the driving wheel 3 is rotated. The driving wheel 3 meshes with the planetary gear 4 to make it rotate under the constraint of the internal gear ring 1. The oil injection assembly 8 provided can store lubricating oil externally. When triggered, the pressing plate 805 inside the oil injection assembly 8 is elastically supported by the support plate 806 to squeeze the lubricating oil inside the fixing plate 803, so that the lubricating oil can be extruded adaptively and evenly. By providing the triggering assembly 9, when the planetary gear 4 meshes with the driving wheel 3 and the internal gear ring 1, the triggering rod 906 inside the triggering assembly 9 is triggered to disengage from the mating block 907, so that the triggering groove 905 at the meshing part of the planetary gear 4, the driving wheel 3 and the internal gear ring 1 squeezes out lubricating oil for fixed-point lubrication, ensuring the lubrication effect at the meshing part. The triggering assembly 9 cooperates with the triggering of the oil injection assembly 8, ensuring the lubrication effect, reducing the waste of lubricating oil, and ensuring that the viscosity at the meshing part between the planetary gear 4, the driving wheel 3 and the internal gear ring 1 is not too high, reducing the energy consumption of the motor. <******>The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents. It should be noted that there seems to be an error in the original text where the tag

[0032] is not fully shown. I have translated it as <******> as per the instruction to keep all 7 - digit tags as - is. If this is incorrect, please provide the correct content for a more accurate translation.

Claims

1. A planetary gear device, comprising an internal gear ring (1), characterized in that: Mounting shells (2) are mirror-imaged on both sides of the inner gear ring (1), a driving wheel (3) is provided at the center of the inner gear ring (1), planetary gears (4) are meshed in a circumferential array between the driving wheel (3) and the inner gear ring (1), bracket plates (5) are provided on both sides of the driving wheel (3) and the planetary gears (4), a support shaft (51) is fixedly installed between the bracket plates (5), and the planetary gears (4) are movably sleeved on the side of the support shaft (51), a first connecting shaft (6) penetrating the mounting shell (2) is fixedly installed on the side of one group of bracket plates (5), a second connecting shaft (7) penetrating the mounting shell (2) is fixedly installed on the side of the other group of bracket plates (5), and the driving wheel (3) is fixedly sleeved on the side of the second connecting shaft (7), an oil injection assembly (8) capable of oiling is provided on the side of the mounting shell (2) corresponding to the position of the second connecting shaft (7), and a trigger assembly (9) capable of triggering lubrication is provided on the side of the planetary gear (4).

2. A planetary gear device according to claim 1, characterized in that: The oil injection assembly (8) comprises a connecting cavity (801) provided on the side of the support plate (5); a connecting plate (802) is movably installed inside the connecting cavity (801); a fixing plate (803) is fixedly installed on the side of the connecting plate (802); an oil injection block (804) is threadedly installed on the side of the fixing plate (803); an extrusion plate (805) is movably installed inside the fixing plate (803); a support plate (806) is symmetrically fixedly installed between the side of the extrusion plate (805) and the inner side of the fixing plate (803); and a conveying groove (807) is provided on the side of the connecting plate (802).

3. A planetary gear device according to claim 2, characterized in that: The connecting plate (802) extends through the mounting shell (2), the fixing plate (803) is fixedly mounted on the side of the mounting shell (2), the oil injection block (804) penetrates the fixing plate (803) to its inner position, the extrusion plate (805) is attached to the inner wall of the fixing plate (803), the extrusion plate (805) is a circular plate made of hard rubber, and the support plate (806) is a circular plate made of spring steel with a continuous "W"-shaped cross section.

4. A planetary gear device according to claim 3, characterized in that: The trigger assembly (9) comprises an inner cavity (901) provided inside the support shaft (51), a connecting groove (902) provided on the inner wall of the inner cavity (901), a storage cavity (903) provided inside the planetary gear (4), and a linkage groove (904) provided on the inner wall of the storage cavity (903).

5. A planetary gear device according to claim 4, characterized in that: The trigger assembly (9) further comprises a trigger groove (905) provided on the inner wall of the storage cavity (903); a trigger rod (906) is movably mounted inside the trigger groove (905); a matching block (907) is fixedly mounted on the inner wall of the trigger groove (905); and a support tube (908) is fixedly connected between the side of the trigger rod (906) and the inner wall of the trigger groove (905).

6. A planetary gear device according to claim 5, characterized in that: The linkage groove (904) runs through the planetary gear (4), the support shaft (51) to the inner position of the inner cavity (901). The trigger groove (905) is a cylindrical groove with a cross-shaped cross-section. The trigger rod (906) is a "T"-shaped rod with rectangular grooves equidistantly arranged on the side. The mating block (907) is snap-fitted inside the rectangular groove of the trigger rod (906). The mating block (907) is a circular ring block with continuous protrusions on the side. The support cylinder (908) is a cylinder made of spring steel with a continuous "W"-shaped cross-section.

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