Double-shaft helical tooth synchronous transmission mechanism

Abstract

The invention discloses a double-shaft helical tooth synchronous transmission mechanism which comprises an outer shell, an inner shell is fixedly connected to the inner side of the outer shell, two helical tooth idle wheels are rotatably connected to the inner side of the inner shell, one end of each helical tooth idle wheel is fixedly connected with a first circular shaft, one end of each first circular shaft is fixedly connected with a connecting shaft, and the other end of each first circular shaft is fixedly connected with a second circular shaft. One end of the connecting shaft is fixedly connected with a second circular shaft, and one end of the second circular shaft is fixedly connected with a connecting piece; by arranging the buffering mechanism, when a user closes a notebook computer, hydraulic oil on the inner side of the first annular groove can be pushed to move, so that inertial impact force generated when a screen is closed is effectively absorbed, instant stress of a rotating shaft and a gear is reduced, hinge deformation or gear tooth breakage is avoided, and protection on the device is improved; and therefore, the overall practicability of the device is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of transmission mechanisms, and specifically relates to a double-shaft helical synchronous transmission mechanism. Background Art

[0002] As a core tool for modern work, study, and entertainment, a laptop, as a small and portable personal computer, requires its screen and keyboard to be folded together when carried, and unfolded when working. Therefore, a dedicated transmission mechanism is needed.

[0003] According to the publication number "CN 214788533 U" disclosed on the Chinese Patent Network, for "a 360-degree double-shaft helical synchronous transmission mechanism", it includes a first connecting member, a second connecting member, and a gear base. The first connecting member and the second connecting member are arranged in parallel on opposite sides of the gear base. An helical idler gear is installed on the gear base, and active helical gears are provided on both the first connecting member and the second connecting member. The two active helical gears are respectively meshed with the helical idler gear. This transmission mechanism has a compact structure and is easy to install, can achieve 360-degree rotation and opening / closing of the double shafts synchronously, and can effectively reduce the dead stroke, with smooth and stable operation.

[0004] Although the above patent solves the problems of reducing the dead stroke and having smooth and stable operation, when the user closes the laptop with excessive force, over time, it is likely to cause the gears inside the transmission structure to be overloaded and damaged or the rotating shafts to be deformed, thus affecting the normal operation of the device and the unfolding and folding of the laptop. For this reason, we have designed a double-shaft helical synchronous transmission mechanism to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a double-shaft helical synchronous transmission mechanism to solve the problem proposed in the above background art that excessive force exerted by the user is likely to cause the gears inside the moving structure to be overloaded and damaged or the rotating shafts to be deformed, thus affecting the unfolding and folding of the laptop.

[0006] A biaxial helical synchronous transmission mechanism, comprising: a housing, an inner housing is fixedly connected to the inner side of the housing, two helical idler gears are rotatably connected to the inner side of the inner housing, a first circular shaft is fixedly connected to one end of each of the two helical idler gears, a connecting shaft is fixedly connected to one end of the first circular shaft, a second circular shaft is fixedly connected to one end of the connecting shaft, and a connecting member is fixedly connected to one end of the second circular shaft; a buffer mechanism, which is arranged at one end of the first circular shaft and is used for buffering the acting force for rotating the connecting member. The buffer mechanism includes two groups of inner housings fixedly connected to one side of the inner housing, with two in each group, a fixed shaft is fixedly connected between every two of the inner housings, a fixing plate is fixedly connected to the inner side of the fixed shaft, a first movable plate is fixedly connected to the outer wall of the connecting shaft, and a first annular groove is formed between the fixed shaft and the connecting shaft; an adaptive voltage-changing mechanism, which is arranged inside the fixed shaft and is used for changing the pressure inside the first annular groove; a lubrication mechanism, which is arranged inside the inner housing and is used for lubricating the parts inside the inner housing; a reflux mechanism, which is arranged inside the fixed shaft and is used for recycling the hydraulic oil for lubrication.

[0007] Further technical solution, the adaptive voltage-changing mechanism includes a second annular groove opened inside the fixed shaft, a second circular plate is fixedly connected to the inner side of the second annular groove, a plurality of limiting sliding grooves are opened inside the second circular plate, a movable piece is slidably connected to the inner side of each limiting sliding groove, a limiting column is fixedly connected to the top of the movable piece, a first circular plate is arranged at the top of the movable piece, a plurality of arc grooves are opened inside the first circular plate, and the plurality of arc grooves are sleeved on the outer wall of the limiting column.

[0008] Further technical solution, the adaptive voltage-changing mechanism further includes a spur gear fixedly connected to the outer wall of the first circular plate, a limiting strip is fixedly connected to the inner side of the second annular groove, a trapezoidal block is slidably connected to the outer wall of the limiting strip, a straight rack is fixedly connected to one end of the trapezoidal block, and the straight rack meshes with the spur gear. A return spring is installed between the trapezoidal block and the inner side of the second annular groove, and a power assembly is arranged at the bottom of the trapezoidal block.

[0009] Further technical solution, the power assembly includes an inclined surface opened at the bottom of the trapezoidal block, a circular groove is opened inside the fixed shaft, a second movable plate is slidably connected to the inner side of the circular groove, a spherical rod is fixedly connected to the top of the second movable plate, and the end of the spherical rod is spherical. The spherical rod penetrates into the inner side of the second annular groove and abuts against the inclined surface.

[0010] According to a further technical solution, the lubrication mechanism includes a first connecting tube installed on the top of the first circular plate, and one end of the first connecting tube passes through the inner side of the inner shell, and four toggle plates are fixedly connected to the inner side of the first connecting tube.

[0011] A further technical solution is that the reflux mechanism includes a rubber soft shell fixedly connected to the top of the fixed shaft, a conical surface is provided on the inner side of the inner shell, a backflow circular groove is provided on the inner side of the conical surface, a second reflux pipe is fixedly connected to the top of the backflow circular groove, two first reflux pipes are fixedly connected to the outer wall of the second reflux pipe, and the two first reflux pipes are respectively connected to the oil inlet of the rubber soft shell.

[0012] According to a further technical solution, the reflux mechanism also includes a movable groove provided on the inner side of the fixed shaft, a baffle block is slidably connected to the inner side of the movable groove, a tension spring is installed between the baffle block and the movable groove, a retention bin is provided on the inner side of the inner shell, a one-way valve is installed on the top of the retention bin, and the one-way valve is communicated with the inner side of the rubber soft shell, and an extrusion assembly is provided on the top of the rubber soft shell.

[0013] According to a further technical solution, the extrusion assembly includes a connecting bin fixedly connected to the top of the fixed shaft, a driving plate is slidably connected to the inner side of the connecting bin, and the driving plate is fixedly connected to the rubber soft shell, an annular clamping strip is fixedly connected to the inner side of the connecting block, an annular limiting groove is provided on the inner side of the annular limiting groove, a power block is rotatably connected to the inner side of the annular limiting groove, and the power block is fixedly connected to the annular clamping strip, a second connecting pipe is installed at the air outlet of the annular limiting groove, and the other end of the second connecting pipe is installed at the air inlet of the connecting bin.

[0014] Beneficial effects of the present invention:

[0015] 1. By setting a buffer mechanism, when the user closes the notebook, the hydraulic oil inside the first ring groove can be pushed to move, thereby effectively absorbing the inertial impact force when the screen is closed, reducing the instantaneous stress of the shaft and the gear, and avoiding hinge deformation or gear tooth collapse, thereby improving the protection of the device and the overall practicality of the device;

[0016] 2. By setting an adaptive variable pressure mechanism, when the user closes the screen with too much force, multiple movable pieces can move along the inner side of the limiting slide grooves respectively, so as to reduce the gaps between the multiple limiting slide grooves, thereby increasing the flow resistance of the oil, thereby improving the buffering force of the device, thereby effectively reducing the closing speed of the screen, thereby improving the overall practicality of the device;

[0017] 3. By setting up a lubrication mechanism, the hydraulic oil inside the first annular groove can flow out through the end of the first connecting pipe. Thus, when the screen of the notebook is being closed, the device can automatically lubricate the parts inside the inner shell, enabling the hydraulic oil to cover the helical gear meshing surface when flowing, forming a continuous oil film, reducing the direct friction between parts, thereby increasing the service life of the parts and enhancing the overall practicality of the device.

[0018] 4. By setting up a reflux mechanism, the hydraulic oil that flows to the circular groove of the parts can flow back to the inside of the reverse flow retention chamber. Meanwhile, under the action of the first movable plate, the flow-blocking block is pushed to move, thereby opening the oil outlet of the retention chamber. Then, the hydraulic oil inside the retention chamber can flow into the inside of the first annular groove, thus forming a cycle of the hydraulic oil. This enables the device to reciprocally protect the screen while lubricating the parts inside the inner shell, further enhancing the lubrication and buffering effect of the device, and thus improving the overall practicality of the device.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Schematic structural diagram of the present invention.

[0021] Figure 2 : Partial structural schematic diagram of the buffer mechanism of the present invention.

[0022] Figure 3 : Cross-sectional view of the buffer mechanism of the present invention.

[0023] Figure 4 : Exploded view of parts such as the fixed shaft, first circular shaft, second circular shaft, etc. of the present invention.

[0024] Figure 5 : Cross-sectional view of the reflux mechanism of the present invention.

[0025] Figure 6 : Schematic structural diagram of the power assembly of the present invention.

[0026] Figure 7 : Exploded view of parts such as the first circular plate, movable piece, second circular plate, etc. of the present invention.

[0027] Figure 8 : Cross-sectional view of the extrusion assembly of the present invention.

[0028] Figure 9 : Cross-sectional view of the lubrication mechanism of the present invention.

[0029] Figure numerals: 1, outer shell; 2, first circular shaft; 3, second circular shaft; 4, connecting piece; 5, inner shell; 6, connecting block; 7, fixed shaft; 8, first annular groove; 9, fixed plate; 10, first movable plate; 11, connecting shaft; 12, circular groove; 13, first connecting pipe; 14, second movable plate; 15, second annular groove; 16, spherical rod; 17, limit bar; 18, trapezoidal block; 19, return spring; 20, spur rack; 21, spur gear; 22, first circular plate; 23, movable sheet; 24, first Two circular plates; 25, arc groove; 26, limit column; 27, limit slide groove; 28, one-way valve; 29, rubber soft shell; 30, toggle plate; 31, movable groove; 32, flow blocking block; 33, tension spring; 34, retention bin; 35, second connecting pipe; 36, connecting bin; 37, first return pipe; 38, annular clamping strip; 39, annular limit groove; 40, power block; 41, second return pipe; 42, conical surface; 43, backflow circular groove; 44, helical idler wheel; 45, inclined surface; 46, drive plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] See also Figures 1 to 9, this embodiment provides a dual-axis helical synchronous transmission mechanism, including: a housing 1, an inner housing 5 is fixedly connected to the inner side of the housing 1, two helical idler gears 44 are rotatably connected to the inner side of the inner housing 5, one end of each of the two helical idler gears 44 is fixedly connected to a first circular shaft 2, one end of the first circular shaft 2 is fixedly connected to a connecting shaft 11, one end of the connecting shaft 11 is fixedly connected to a second circular shaft 3, and one end of the second circular shaft 3 is fixedly connected to a connecting member 4; a buffer mechanism, which is arranged at one end of the first circular shaft 2 and is used for buffering the acting force on the rotating connecting member 4. The buffer mechanism includes two groups of inner housings 5 fixedly connected to one side of the inner housing 5, with two in each group. A fixed shaft 7 is fixedly connected between every two inner housings 5. A fixing plate 9 is fixedly connected to the inner side of the fixed shaft 7. A first movable plate 10 is fixedly connected to the outer wall of the connecting shaft 11. A first annular groove 8 is formed between the fixed shaft 7 and the connecting shaft 11. An adaptive voltage-changing mechanism, which is arranged inside the fixed shaft 7 and is used for changing the pressure inside the first annular groove 8; the adaptive voltage-changing mechanism includes a second annular groove 15 formed inside the fixed shaft 7. A second circular plate 24 is fixedly connected to the inner side of the second annular groove 15. A plurality of limiting sliding grooves 27 are formed inside the second circular plate 24. A movable piece 23 is slidably connected to the inner side of each limiting sliding groove 27. A limiting column 26 is fixedly connected to the top of the movable piece 23. A first circular plate 22 is arranged at the top of the movable piece 23. A plurality of arc-shaped grooves 25 are formed inside the first circular plate 22, and the plurality of arc-shaped grooves 25 are sleeved on the outer wall of the limiting column 26; the adaptive voltage-changing mechanism further includes a spur gear 21 fixedly connected to the outer wall of the first circular plate 22. A limiting strip 17 is fixedly connected to the inner side of the second annular groove 15. A trapezoidal block 18 is slidably connected to the outer wall of the limiting strip 17. A straight rack 20 is fixedly connected to one end of the trapezoidal block 18, and the straight rack 20 meshes with the spur gear 21. A return spring 19 is installed between the trapezoidal block 18 and the inner side of the second annular groove 15. A power assembly is arranged at the bottom of the trapezoidal block 18. The power assembly includes an inclined surface 45 formed at the bottom of the trapezoidal block 18. A circular groove 12 is formed inside the fixed shaft 7. A second movable plate 14 is slidably connected to the inner side of the circular groove 12. A spherical rod 16 is fixedly connected to the top of the second movable plate 14, and the end of the spherical rod 16 is spherical. The spherical rod 16 penetrates into the inner side of the second annular groove 15 and abuts against the inclined surface 45.

[0032] Hydraulic oil is arranged inside the first annular groove 8, and the keyboard and the screen of the notebook are respectively connected to the two connecting members 4. When the user applies a force to the screen to close the notebook, at this time, the connecting member 4 will be driven to rotate under the action of the screen, thereby driving the second circular shaft 3 to rotate, and then driving the first movable plate 10 to rotate, so as to push the hydraulic oil inside the first annular groove 8 to move, thereby effectively absorbing the inertial impact force when the screen is closed, reducing the instantaneous stress of the rotating shaft and the gear, avoiding the deformation of the hinge or the tooth breakage of the gear, thereby improving the protection of the device and thus improving the overall practicality of the device;

[0033] At the same time, when the user exerts too much force, the hydraulic oil inside the first annular groove 8 will be further pushed to move under the action of the second circular shaft 3, thereby pushing the second movable plate 14 to move in the direction of the trapezoidal block 18, thereby driving the spherical rod 16 to move in the direction of the trapezoidal block 18, so that under the action of the spherical rod 16, the trapezoidal block 18 is pushed to move along the limit bar 17, thereby driving the spur rack 20 to move, thereby driving the first circular plate 22 to rotate, and under the action of the arc groove 25, driving multiple movable plates 23 to move along the inner side of the limit slide groove 27 respectively, thereby reducing the gap between the multiple limit slide grooves 27, thereby increasing the oil flow resistance, thereby improving the buffering force of the device, thereby effectively reducing the closing speed of the screen, thereby improving the overall practicality of the device.

[0034] See also Figures 2 to 9 , a lubrication mechanism, which is arranged on the inner side of the inner shell 5 and is used to lubricate the parts on the inner side of the inner shell 5; the lubrication mechanism includes a first connecting tube 13 installed on the top of the first circular plate 22, and one end of the first connecting tube 13 penetrates the inner side of the inner shell 5, and four toggle pieces 30 are fixedly connected to the inner side of the first connecting tube 13;

[0035] When the first movable plate 10 rotates to push the hydraulic oil inside the first annular groove 8 to move, the hydraulic oil inside the first annular groove 8 enters the inner side of the first connecting tube 13 through the circular groove 12, and then flows out through the end of the first connecting tube 13, so that when the screen of the notebook is closed, the device can automatically lubricate the parts inside the inner shell 5, so that the hydraulic oil covers the helical gear meshing surface when flowing, forming a continuous oil film, reducing the direct friction between the parts, thereby increasing the service life of the parts, thereby improving the overall practicality of the device;

[0036] The paddle plate 30 is made of a plastic soft film, so that the hydraulic oil inside the first connecting tube 13 can only flow upward from the bottom. Therefore, when the screen is opened, when a negative pressure state is briefly formed on the inner side of the first annular groove 8, the hydraulic oil will not flow back into the inner side of the first annular groove 8, thereby improving the stability of the device and thus improving the overall practicality of the device.

[0037] See also Figures 3 to 9, the reflux mechanism includes a rubber soft shell 29 fixedly connected to the top of the fixed shaft 7. A conical surface 42 is provided on the inner side of the inner shell 5. A reverse flow circular groove 43 is provided on the inner side of the conical surface 42. A second reflux pipe 41 is fixedly connected to the top of the reverse flow circular groove 43. Two first reflux pipes 37 are fixedly connected to the outer wall of the second reflux pipe 41. The two first reflux pipes 37 are respectively connected to the oil inlet of the rubber soft shell 29. The reflux mechanism further includes a moving groove 31 provided inside the fixed shaft 7. A flow blocking block 32 is slidably connected to the inside of the moving groove 31. A tension spring 33 is installed between the flow blocking block 32 and the moving groove 31. A retention chamber 34 is provided on the inner side of the inner shell 5. A one-way valve 28 is installed at the top of the retention chamber 34, and the one-way valve 28 communicates with the inside of the rubber soft shell 29. An extrusion assembly is provided on the top of the rubber soft shell 29. The extrusion assembly includes a connection chamber 36 fixedly connected to the top of the fixed shaft 7. A driving plate 46 is slidably connected to the inside of the connection chamber 36, and the driving plate 46 is fixedly connected to the rubber soft shell 29. An annular clamping strip 38 is fixedly connected to the inside of the connecting block 6. An annular limiting groove 39 is provided on the inner side of the annular clamping strip 38. A power block 40 is rotatably connected to the inside of the annular limiting groove 39, and the power block 40 is fixedly connected to the annular clamping strip 38. A second connecting pipe 35 is installed at the air outlet of the annular limiting groove 39, and the other end of the second connecting pipe 35 is installed at the air inlet of the connection chamber 36;

[0038] When the second circular shaft 3 rotates, the first circular shaft 2 rotates synchronously with the second circular shaft 3, thereby driving the power block 40 to rotate, so as to push the air inside the annular limiting groove 39 into the inside of the driving plate 46 through the second connecting pipe 35, thereby pushing the driving plate 46 to move downward, so as to extrude the rubber soft shell 29, so as to squeeze the hydraulic oil inside the rubber soft shell 29 into the inside of the retention chamber 34, so as to facilitate the hydraulic oil to flow into the inside of the first annular groove 8 for the next buffering, thereby improving the overall practicality of the device;

[0039] When the hydraulic oil inside the rubber soft shell 29 is squeezed into the inside of the retention chamber 34, the flow blocking block 32 will abut against the oil outlet of the retention chamber 34 under the action of the tension spring 33, so as to prevent the hydraulic oil from flowing into the inside of the first annular groove 8 and affecting the operation of the device, thereby improving the overall stability of the device, thereby improving the overall practicality of the device;

[0040] When the user turns on the screen, the first circular shaft 2 rotates reversely synchronously with the second circular shaft 3 at this time, so as to suck the gas inside the driving plate 46 into the inside of the annular limiting groove 39, thereby resetting the driving plate 46, driving the rubber soft shell 29 to reset. At the same time, the hydraulic oil inside the first annular groove 8 flows from the end of the first connecting pipe 13 to the parts inside the inner shell 5, and then flows from the parts to the conical surface 42, and finally flows into the inside of the circular groove 43. At this time, under the action of the rubber soft shell 29, the hydraulic oil inside the reverse flow circular groove 43 is sucked into the inside of the rubber soft shell 29 through the first return pipe 37. At the same time, when the first movable plate 10 is reset, when the end of the first movable plate 10 abuts against the bottom of the flow blocking block 32, under the action of the first movable plate 10, the flow blocking block 32 is pushed to move, thereby opening the oil outlet of the retention bin 34, so that the hydraulic oil inside the retention bin 34 can flow into the inside of the first annular groove 8, thus forming a cycle of hydraulic oil. Thereby, while the device can reciprocally protect the screen, it lubricates the parts inside the inner shell 5, further improving the lubrication and buffering effect of the device, and thus enhancing the overall practicality of the device.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0042] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A dual-axis helical gear synchronous transmission mechanism, characterized in that: include: An outer shell (1), the inner side of the outer shell (1) being fixedly connected to an inner shell (5), the inner side of the inner shell (5) being rotatably connected to two helical idler wheels (44), one end of each of the two helical idler wheels (44) being fixedly connected to a first circular shaft (2), one end of the first circular shaft (2) being fixedly connected to a connecting shaft (11), one end of the connecting shaft (11) being fixedly connected to a second circular shaft (3), and one end of the second circular shaft (3) being fixedly connected to a connecting piece (4); a buffer mechanism, the buffer mechanism being arranged at one end of the first circular shaft (2) and being used for buffering the force acting on the rotating connecting member (4), the buffer mechanism comprising two groups of inner shells (5) fixedly connected to one side of the inner shell (5), each group being provided with two inner shells, a fixed shaft (7) being fixedly connected between each two inner shells (5), a fixed plate (9) being fixedly connected to the inner side of the fixed shaft (7), a first movable plate (10) being fixedly connected to the outer wall of the connecting shaft (11), and a first annular groove (8) being provided between the fixed shaft (7) and the connecting shaft (11); an adaptive pressure changing mechanism, the adaptive pressure changing mechanism being arranged on the inner side of the fixed shaft (7) and being used to change the pressure on the inner side of the first annular groove (8); a lubrication mechanism, the lubrication mechanism being arranged on the inner side of the inner shell (5) and being used for lubricating parts on the inner side of the inner shell (5); A reflux mechanism is arranged on the inner side of the fixed shaft (7) and is used to recover hydraulic oil for lubrication.

2. A dual-shaft helical gear synchronous transmission mechanism according to claim 1, characterized in that: The adaptive voltage-changing mechanism comprises a second annular groove (15) provided on the inner side of the fixed shaft (7); a second circular plate (24) is fixedly connected to the inner side of the second annular groove (15); a plurality of limiting sliding grooves (27) are provided on the inner side of the second circular plate (24); a movable sheet (23) is slidably connected to the inner side of each limiting sliding groove (27); a limiting column (26) is fixedly connected to the top of the movable sheet (23); a first circular plate (22) is provided on the top of the movable sheet (23); a plurality of arc grooves (25) are provided on the inner side of the first circular plate (22); and the plurality of arc grooves (25) are sleeved on the outer wall of the limiting column (26).

3. A dual-shaft helical gear synchronous transmission mechanism according to claim 2, characterized in that: The adaptive voltage-changing mechanism further comprises a spur gear (21) fixedly connected to the outer wall of the first circular plate (22); a limit strip (17) is fixedly connected to the inner side of the second annular groove (15); a trapezoidal block (18) is slidably connected to the outer wall of the limit strip (17); a spur rack (20) is fixedly connected to one end of the trapezoidal block (18); the spur rack (20) is meshed with the spur gear (21); a return spring (19) is installed between the trapezoidal block (18) and the inner side of the second annular groove (15); and a power assembly is arranged at the bottom of the trapezoidal block (18).

4. A dual-shaft helical gear synchronous transmission mechanism according to claim 3, characterized in that: The power assembly comprises an inclined surface (45) provided at the bottom of the trapezoidal block (18); a circular groove (12) is provided on the inner side of the fixed shaft (7); a second movable plate (14) is slidably connected to the inner side of the circular groove (12); a spherical rod (16) is fixedly connected to the top of the second movable plate (14); an end of the spherical rod (16) is spherical; the spherical rod (16) penetrates the inner side of the second annular groove (15) and abuts against the inclined surface (45).

5. A dual-shaft helical gear synchronous transmission mechanism according to claim 4, characterized in that: The lubrication mechanism comprises a first connecting tube (13) mounted on the top of the first circular plate (22), one end of the first connecting tube (13) passes through the inner side of the inner shell (5), and four shifting plates (30) are fixedly connected to the inner side of the first connecting tube (13).

6. A dual-shaft helical gear synchronous transmission mechanism according to claim 5, characterized in that: The reflux mechanism comprises a rubber soft shell (29) fixedly connected to the top of the fixed shaft (7); a conical surface (42) is provided on the inner side of the inner shell (5); a backflow circular groove (43) is provided on the inner side of the conical surface (42); a second reflux pipe (41) is fixedly connected to the top of the backflow circular groove (43); two first reflux pipes (37) are fixedly connected to the outer wall of the second reflux pipe (41); the two first reflux pipes (37) are respectively connected to the oil inlet of the rubber soft shell (29).

7. A dual-shaft helical gear synchronous transmission mechanism according to claim 6, characterized in that: The reflux mechanism further comprises a movable groove (31) provided on the inner side of the fixed shaft (7), a flow block (32) being slidably connected to the inner side of the movable groove (31), a tension spring (33) being installed between the flow block (32) and the movable groove (31), a retention bin (34) being provided on the inner side of the inner shell (5), a one-way valve (28) being installed on the top of the retention bin (34), and the one-way valve (28) being communicated with the inner side of the rubber soft shell (29), and an extrusion assembly being provided on the top of the rubber soft shell (29).

8. A dual-shaft helical gear synchronous transmission mechanism according to claim 7, characterized in that: The extrusion assembly comprises a connection chamber (36) fixedly connected to the top of the fixed shaft (7); a driving plate (46) is slidably connected to the inner side of the connection chamber (36), and the driving plate (46) is fixedly connected to the rubber soft shell (29); an annular clamping strip (38) is fixedly connected to the inner side of the connection block (6); an annular limiting groove (39) is provided on the inner side of the annular limiting groove (39); a power block (40) is rotatably connected to the inner side of the annular limiting groove (39), and the power block (40) is fixedly connected to the annular clamping strip (38); a second connection pipe (35) is installed at the air outlet of the annular limiting groove (39), and the other end of the second connection pipe (35) is installed at the air inlet of the connection chamber (36).

Images