Planetary gear transmission structure

Abstract

The utility model discloses a planetary gear transmission structure which comprises a supporting plate, a central gear rotationally arranged at the top of the supporting plate and a plurality of transmission gears, and further comprises a limiting ring and an inner gear ring rotationally arranged on the inner wall of the limiting ring, and the inner gear ring is located on the outer sides of the multiple transmission gears and makes engaged contact with the multiple transmission gears, the bottom end of the center gear is coaxially and fixedly connected with a reciprocating lead screw, the reciprocating lead screw is sleeved with a T-shaped lifting plate in a threaded mode, and the bottom of the supporting plate is fixedly connected with a guide rod. The reciprocating lead screw is driven to rotate, the T-shaped lifting plate is driven to move up and down in the vertical direction, when the T-shaped lifting plate moves upwards and makes contact with the check block, the push rod is pushed to move upwards, lubricating oil is discharged through the second one-way valve, the purpose of lubricating the rotating center gear, the transmission gear and the inner gear ring is achieved, and shutdown for disassembly and lubrication is not needed; the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary gears, in particular to a planetary gear transmission structure. Background Art

[0002] Planetary gears are gear systems that, in addition to rotating around their own axes like fixed-axis gears, also follow the planetary carrier's rotation around the axes of other gears. Rotation around their own axes is called "rotation," while rotation around the axes of other gears is called "revolution," much like the planets in the solar system, hence the name.

[0003] During operation, the planetary gears have an extremely high rotation speed, which greatly increases the heat generation and requires sufficient lubricating oil for lubrication. Currently, when adding lubricating oil to the planetary gears, it is necessary to manually stop the planetary gears and add lubricating oil to them. It cannot be added by yourself while the planetary gears are working, which makes the operation more troublesome. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a planetary gear transmission structure, which solves the problems raised in the above-mentioned background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a planetary gear transmission structure, including a support plate, a center gear rotatably set on the top of the support plate and multiple transmission gears, the transmission gears are all meshed and contacted with the center gear, and also include a limiting ring and an inner gear ring rotatably set on the inner wall of the limiting ring, the inner gear ring is located on the outside of the multiple transmission gears and meshed and contacted with the multiple transmission gears, the bottom end of the center gear is coaxially fixedly connected to a reciprocating screw, the reciprocating screw is threadedly sleeved with a T-shaped lifting plate, the bottom of the support plate is fixedly connected to a guide rod, the lower end of the guide rod is movably passed through the T-shaped lifting plate, and two groups of spray assemblies are provided on the support plate. When the T-shaped lifting plate contacts the spray assembly, the lubricating oil inside the spray assembly is discharged and sprayed onto the transmission gear.

[0008] Preferably, the liquid spray assembly includes a conduit fixed to the bottom of the support plate, a second one-way valve fixed to the top of the conduit, and a first one-way valve fixed on the circumferential side wall of the conduit. The other end of the first one-way valve is fixedly connected to an oil storage cylinder. A push rod is movably inserted inside the conduit, and a block is fixedly connected to the lower end of the push rod. A spring is fixedly connected between the block and the bottom end of the conduit.

[0009] Preferably, an annular sealing ring is fixedly connected to the upper end of the push rod, and the sealing ring is in contact with the inner wall of the catheter.

[0010] Preferably, when the T-shaped lifting plate moves upward and contacts the stopper, it pushes the push rod to move upward, and discharges the lubricating oil through the second one-way valve.

[0011] Preferably, a connecting rod is fixedly connected between the support plate and the limiting ring, and the number of the connecting rods is two and they are symmetrically distributed.

[0012] Preferably, the number of the transmission gears is three, and the transmission gears are distributed equidistantly around the circumference with the axis of the central gear as the center.

[0013] (3) Beneficial effects

[0014] The utility model provides a planetary gear transmission structure, which has the following beneficial effects:

[0015] 1. In the utility model, the reciprocating screw is driven to rotate, driving the T-shaped lifting plate to move up and down in the vertical direction. When the T-shaped lifting plate moves upward and contacts the block, it pushes the push rod to move upward, and the lubricating oil is discharged through the second one-way valve, thereby achieving the purpose of lubricating the rotating center gear, transmission gear and inner gear ring. There is no need to stop the machine for disassembly and lubrication, thereby improving work efficiency.

[0016] 2. In the present invention, when the T-shaped lifting plate moves downward, the spring releases its elastic force, pushing the stopper and the push rod downward, sucking the lubricating oil inside the oil reservoir into the conduit, preparing for the next round of lubricating oil delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front perspective structural diagram of a planetary gear transmission structure proposed in the present invention;

[0018] Figure 2 This is a bottom-up perspective structural diagram of a planetary gear transmission structure proposed in the present invention;

[0019] Figure 3 This is a structural diagram of the liquid spraying component of a planetary gear transmission structure proposed by the present invention.

[0020] In the figure: 1. Support plate; 2. Center gear; 3. Transmission gear; 4. Internal gear ring; 5. Limit ring; 6. Reciprocating screw; 7. Guide rod; 8. T-type lifting plate; 9. Spray assembly; 91. Oil storage cylinder; 92. One-way valve 1; 93. Conduit; 94. One-way valve 2; 95. Push rod; 96. Spring; 97. Stop block; 10. Connecting rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] See also Figures 1 to 3 The utility model provides a technical solution: a planetary gear transmission structure, including a support plate 1, a center gear 2 rotatably arranged on the top of the support plate 1 and multiple transmission gears 3, the transmission gears 3 are all in meshing contact with the center gear 2, and also include a limiting ring 5 and an inner gear ring 4 rotatably arranged on the inner wall of the limiting ring 5. The inner gear ring 4 is located on the outside of the multiple transmission gears 3 and in meshing contact with the multiple transmission gears 3. The bottom end of the center gear 2 is coaxially fixedly connected to a reciprocating screw rod 6, and a T-shaped lifting plate 8 is threadedly sleeved on the reciprocating screw rod 6. A guide rod 7 is fixedly connected to the bottom of the support plate 1, and the lower end of the guide rod 7 is movably inserted through the T-shaped lifting plate 8. Two groups of spray assemblies 9 are provided on the support plate 1. When the T-shaped lifting plate 8 contacts the spray assembly 9, the lubricating oil inside the spray assembly 9 is discharged and sprayed onto the transmission gear 3.

[0023] The reciprocating screw 6 is driven to rotate, driving the coaxial center gear 2 to rotate, the center gear 2 drives multiple transmission gears 3 to rotate, and the transmission gear 3 pushes the inner gear ring 4 to perform circular motion; at the same time, the reciprocating screw 6 drives the T-shaped lifting plate 8 to move. When the T-shaped lifting plate 8 contacts the spray component 9, the lubricating oil inside the spray component 9 is discharged and sprayed onto the transmission gear 3.

[0024] The liquid spraying assembly 9 includes a conduit 93 fixed to the bottom of the support plate 1, a one-way valve 2 94 fixed to the top of the conduit 93, and a one-way valve 1 92 fixed on the circumferential side wall of the conduit 93. The other end of the one-way valve 1 92 is fixedly connected to the oil storage cylinder 91. A push rod 95 is movably inserted into the conduit 93. The lower end of the push rod 95 is fixedly connected to a stopper 97. A spring 96 is fixedly connected between the stopper 97 and the bottom end of the conduit 93.

[0025] The reciprocating screw 6 is driven to rotate, driving the T-shaped lifting plate 8 to move up and down in the vertical direction. When the T-shaped lifting plate 8 moves upward and contacts the stopper 97, it pushes the stopper 97 and the push rod 95 to move upward, and finally the lubricating oil is discharged through the second one-way valve 94, thereby achieving the purpose of lubricating the rotating central gear 2, the transmission gear 3 and the inner gear ring 4. There is no need to stop the machine for disassembly and lubrication, thereby improving work efficiency.

[0026] When the T-shaped lifting plate 8 moves downward, the spring 96 releases its elastic force, pushing the stopper 97 and the push rod 95 downward, and sucking the lubricating oil inside the oil storage cylinder 91 into the conduit 93 through the one-way valve 92, preparing for the next round of lubricating oil delivery.

[0027] An annular sealing ring is fixedly connected to the upper end of the push rod 95 , and the sealing ring is in contact with the inner wall of the conduit 93 , thereby preventing the lubricating oil from leaking through the bottom end of the conduit 93 .

[0028] When the T-shaped lifting plate 8 moves upward and contacts the stopper 97 , it pushes the push rod 95 to move upward, and the lubricating oil is discharged through the second one-way valve 94 .

[0029] A connecting rod 10 is fixedly connected between the support plate 1 and the limiting ring 5. There are two connecting rods 10, which are symmetrically distributed, connecting the support plate 1 and the limiting ring 5 into a whole.

[0030] In addition, there are three transmission gears 3 , and the transmission gears 3 are distributed equidistantly around the circumference with the axis of the central gear 2 as the center.

[0031] 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 to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A planetary gear transmission structure, characterized in that: The invention comprises a support plate (1), a central gear (2) rotatably arranged on the top of the support plate (1), and a plurality of transmission gears (3), wherein the transmission gears (3) are all in meshing contact with the central gear (2), a limiting ring (5) and an inner gear ring (4) rotatably arranged on the inner wall of the limiting ring (5), wherein the inner gear ring (4) is located outside the plurality of transmission gears (3) and in meshing contact with the plurality of transmission gears (3), a reciprocating screw rod (6) is coaxially fixedly connected to the bottom end of the central gear (2), a T-shaped lifting plate (8) is threadedly sleeved on the reciprocating screw rod (6), a guide rod (7) is fixedly connected to the bottom of the support plate (1), and the lower end of the guide rod (7) is movably inserted through the T-shaped lifting plate (8), and two groups of liquid spraying components (9) are arranged on the support plate (1), and when the T-shaped lifting plate (8) contacts the liquid spraying component (9), the lubricating oil inside the liquid spraying component (9) is discharged and sprayed onto the transmission gear (3).

2. A planetary gear transmission structure according to claim 1, characterized in that: The liquid spraying assembly (9) comprises a conduit (93) fixed to the bottom of the support plate (1), a second one-way valve (94) fixed to the top of the conduit (93), and a first one-way valve (92) fixed to the circumferential side wall of the conduit (93). The other end of the first one-way valve (92) is fixedly connected to an oil storage cylinder (91). A push rod (95) is movably inserted into the interior of the conduit (93). A stopper (97) is fixedly connected to the lower end of the push rod (95). A spring (96) is fixedly connected between the stopper (97) and the bottom end of the conduit (93).

3. A planetary gear transmission structure according to claim 2, characterized in that: An annular sealing ring is fixedly connected to the upper end of the push rod (95), and the sealing ring is in contact with the inner wall of the conduit (93).

4. The planetary gear transmission structure according to claim 2, characterized in that: When the T-shaped lifting plate (8) moves upward and contacts the stopper (97), it pushes the push rod (95) to move upward, and the lubricating oil is discharged through the second one-way valve (94).

5. The planetary gear transmission structure according to claim 1, characterized in that: A connecting rod (10) is fixedly connected between the support plate (1) and the limiting ring (5), and the number of the connecting rods (10) is two and they are symmetrically distributed.

6. The planetary gear transmission structure according to claim 1, characterized in that: The number of the transmission gears (3) is three, and the transmission gears (3) are distributed equidistantly around the circumference with the axis of the central gear (2) as the center.

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