An automatic transmission planetary gear mechanism operating bench

Abstract

The present invention discloses an automatic transmission planetary gear mechanism operating platform, comprising a main structure, a mating structure and a demonstration structure, wherein the mating structure is detachably mounted on the main structure, and the demonstration structure is detachably mounted between the main structure and the mating structure. The present invention relates to the technical field of teaching aids. The main structure of the present invention facilitates carrying and placement for use, and can rotate 360 ​​degrees for students to watch. By installing the sun gear and the planetary gear in the demonstration structure between the mating structure and the first support frame and the second support frame in the main structure, the sun gear and the planetary gear can be engaged with the internal gear to form a reduction transmission, so as to provide students with observation of the differential between the input rotation speed of the sun gear and the inner ring gear or the planetary gear. By fixing the planetary frame, the planetary gear can drive the inner ring gear to rotate to demonstrate the first differential, and the inner ring gear can also be fixed so that the planetary frame rotates to demonstrate the second transmission.

Description

Technical Field

[0001] The invention relates to the technical field of teaching tools, in particular to an automatic transmission planetary gear mechanism operating platform. Background Art

[0002] Usually when teaching automobile mechanisms, teachers can only use projection equipment or blackboards for lectures. The automatic transmission planetary gear mechanism operating bench is mainly used when the automatic transmission is disassembled and assembled, which is convenient for teachers to conduct intuitive demonstrations during theoretical or practical operations. It is convenient to explain the intuitive demonstration of the speed change effect of the Volkswagen automatic transmission planetary gear. During the teaching process, students can intuitively see the transmission ratio, that is, the speed difference of the planetary gear transmission. Therefore, an automatic transmission planetary gear mechanism operating bench is designed. Summary of the Invention

[0003] The object of the present invention is to provide an automatic transmission planetary gear mechanism operating platform to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic transmission planetary gear mechanism operating test bench, comprising a main structure, a mating structure and a demonstration structure, wherein the mating structure can be detachably mounted on the main structure, and the demonstration structure can be detachably mounted between the main structure and the mating structure.

[0005] Preferably, the main structure includes a base, a turntable, a first support frame, a pair of limiting rods, a pair of limiting nuts, a pair of first springs and a pair of exchange screws;

[0006] The cam is fixedly mounted on the left side of the turntable, and the cam is fixedly mounted on the left side of the turntable, wherein the cam is fixedly mounted on the left side of the turntable, and the cams are respectively arranged on the front and rear sides of the center line of the right end of the turntable. The two ends of the bottom of the first support frame are fixedly mounted on the upper wall of the left end of the turntable, and are respectively opposite to the sliding grooves. A first bearing is provided at the center of the top of the first support frame, and a first threaded hole is provided on the front and rear sides of the bottom of the first bearing. A second threaded hole is provided near the bottom of the first support frame, and one end of a pair of limit rods is movably screwed into the second threaded hole and passes through the first support frame. A pair of limit nuts are movably screwed onto the other end of the limit rod, and a pair of first springs are movably sleeved on the other end of the limit rod and are located on the left side of the limit nut. One end of a pair of replacement screws is movably screwed into the first threaded hole.

[0007] Preferably, the fitting structure includes a second support frame, a pair of brackets, a pair of first limiting rollers, a pair of fastening screws, an inner gear ring and a pair of pressing components;

[0008] The second support frame has the same structure as the first support frame, and a second bearing is embedded in the center of the top. Limit blocks are provided on the lower walls at both ends of the bottom of the second support frame, and a first through hole is opened on both sides near the front and rear of the top. The bottom end of the second support frame is movably inserted in the sliding groove, and is movably sleeved on the limit rod, and is located on the left side of the first spring. One end of a pair of the brackets is respectively tilted and fixedly arranged on the left side wall of the second support frame near the top, and is respectively located symmetrically on the front and rear sides of the second bearing. A third threaded hole is opened on the other end of a pair of the brackets near the top center line. A pair of the first limiting rollers are respectively movably arranged on the other end of the bracket, and a pair of the fastening screws are respectively detachable and screwed in the third threaded holes at the other end of the bracket. The inner gear ring is detachably arranged between the pair of first limiting rollers, and a pair of the pressing assemblies are respectively detachably arranged on the right side wall of the second support frame near the top, and are respectively located symmetrically on the front and rear sides of the center line.

[0009] Preferably, in order to intuitively demonstrate the internal principle of the gearbox, the inner gear ring can be limited and rotated, and can also be tightened and locked.

[0010] Preferably, the pressing assembly includes a turning frame, a second limiting roller, a mounting bolt, a mounting nut and a second spring;

[0011] One end of the flip frame is detachably mounted on the right side wall of the front end of the second support frame, and is located at the first through-hole, and the other end is located on the left side of the second support frame. The second limiting roller is movably mounted on the other end of the flip frame, and is fitted on the right side wall of the inner gear ring near the top. One end of the mounting bolt is movably inserted through the first through-hole of the second support frame and one end of the flip frame. The mounting nut is movably screwed on the mounting bolt and is located on the right side of the second support frame. One end of the second spring is detachably connected to the lower wall near the center of the flip frame, and the other end is detachably connected to the right side wall of the second support frame near the top.

[0012] Preferably, the demonstration structure includes a planet carrier, a crank, three planetary gears, a drive shaft, a sun gear and fan blades;

[0013] The planetary carrier is a triangular structure, and a fourth threaded hole corresponding to the first threaded hole is opened near the three ends. A transmission shaft is provided at the center of the left side wall of the planetary carrier, and a sleeve rod is provided on the right side walls of the three ends. The planetary carrier passes through the first bearing of the first support frame through the transmission shaft and is located in the inner gear ring. One end of the crank can be removably mounted on the other end of the transmission shaft. The three planetary gears are respectively movably mounted on the sleeve rod and are respectively located in the inner gear ring and meshed with the inner gear ring. One end of the drive shaft can be removably mounted on the second bearing of the second support frame. The sun gear can be removably mounted on one end of the drive shaft and is located between the three planetary gears. The fan blade can be removably mounted on the other end of the drive shaft.

[0014] Preferably, the crank can be mounted on the other end of the driving shaft.

[0015] Preferably, the planet carrier can be locked by replacing the screw.

[0016] The present invention provides an automatic transmission planetary gear mechanism operating test bench, which has the following beneficial effects:

[0017] 1. The present invention is easy to carry and place through the main structure, and can be rotated 360 degrees for students to watch;

[0018] 2. The present invention, by installing the sun gear and planetary gear in the demonstration structure between the first support frame and the second support frame in the fitting structure and the main structure, can mesh with the internal gear to form a reduction transmission, allowing students to observe the differential speed between the input rotation speed of the sun gear and the internal gear ring or planetary gear;

[0019] 3. The present invention can demonstrate the first differential by fixing the planetary carrier and allowing the planetary gears to drive the inner gear ring to rotate. Alternatively, the inner gear ring can be fixed and the planetary carrier can be rotated to demonstrate the second transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the assembly structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the split structure of the main structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the split structure of the matching structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the split structure of the demonstration structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the partially enlarged structure of point A of the present invention;

[0025] Figure 6 It is a schematic diagram of the partially enlarged structure of point B of the present invention.

[0026] In the figure: 1. Main structure, 11. Base, 12. Turntable, 13. First support frame, 14. Limit rod, 15. Limit nut, 16. First spring, 17. Replacement screw, 2. Fitting structure, 21. Second support frame, 22. Bracket, 23. First limit roller, 24. Fastening screw, 25. Internal gear ring, 26. Pressing assembly, 61. Turning frame, 62. Second limit roller, 63. Mounting bolt, 64. Mounting nut, 65. Second spring, 3. Demonstration structure, 31. Planetary frame, 32. Crank handle, 33. Planetary gear, 34. Drive shaft, 35. Sun gear, 36. Fan blade. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-6 The present invention provides a technical solution: an automatic transmission planetary gear 33 mechanism operating test bench, including a main structure 1, a fitting structure 2 and a demonstration structure 3, wherein the fitting structure 2 can be detachably placed on the main structure 1, and the demonstration structure 3 can be detachably placed between the main structure 1 and the fitting structure 2.

[0029] As a preferred solution, further, the main structure 1 includes a base 11, a turntable 12, a first support frame 13, a pair of limiting rods 14, a pair of limiting nuts 15, a pair of first springs 16 and a pair of exchange screws 17;

[0030] The base 11 is a rectangular structure, and a rotatable shaft column is provided at the center of the upper wall. The turntable 12 is fixedly placed on the shaft column, and sliding grooves are provided on the front and rear sides of the center line of the right end of the turntable 12. The two ends of the bottom of the first support frame 13 are fixedly placed on the upper wall of the left end of the turntable 12, and are respectively opposite to the sliding grooves. A first bearing is provided at the center of the top of the first support frame 13, and a first threaded hole is provided on the front and rear sides of the bottom of the first bearing. A second threaded hole is provided near the bottom of the first support frame 13. One end of a pair of limiting rods 14 is movably screwed into the second threaded hole and passes through the first support frame 13. A pair of limiting nuts 15 are movably screwed on the other end of the limiting rod 14. A pair of first springs 16 are movably sleeved on the other end of the limiting rod 14 and are located on the left side of the limiting nut 15. One end of a pair of replacement screws 17 is movably screwed into the first threaded hole.

[0031] As a preferred solution, further, the fitting structure 2 includes a second support frame 21, a pair of brackets 22, a pair of first limiting rollers 23, a pair of fastening screws 24, an inner gear ring 25 and a pair of pressing components 26;

[0032] The second support frame 21 has the same structure as the first support frame 13, and a second bearing is embedded in the center of the top. Limit blocks are provided on the lower walls at both ends of the bottom of the second support frame 21, and first through holes are opened on both sides near the front and rear of the top. The bottom end of the second support frame 21 is movably inserted in the sliding groove, and is movably sleeved on the limit rod 14, and is located on the left side of the first spring 16. One end of a pair of the brackets 22 is respectively tilted and fixed on the left side wall near the top of the second support frame 21, and is symmetrically located on the front and rear sides of the second bearing. A third threaded hole is opened on the other end of a pair of the brackets 22 near the top center line. A pair of first limiting rollers 23 are respectively movably arranged on the other end of the bracket 22. A pair of fastening screws 24 are respectively detachably screwed into the third threaded holes at the other end of the bracket 22. The inner gear ring 25 is detachably arranged between the pair of first limiting rollers 23. A pair of pressing assemblies 26 are respectively detachably arranged on the right side wall of the second support frame 21 near the top, and are respectively symmetrically located on the front and rear sides of the center line.

[0033] As a preferred solution, further, the pressing assembly 26 includes a turning frame 61, a second limiting roller 62, a mounting bolt 63, a mounting nut 64 and a second spring 65;

[0034] One end of the flip frame 61 is detachably mounted on the right side wall of the front end of the second support frame 21, and is located at the first through-hole position, and the other end is located on the left side of the second support frame 21. The second limiting roller 62 is movably mounted on the other end of the flip frame 61, and is attached to the right side wall of the inner gear ring 25 near the top. One end of the mounting bolt 63 is movably inserted into the first through-hole of the second support frame 21 and one end of the flip frame 61. The mounting nut 64 is movably screwed onto the mounting bolt 63 and is located on the right side of the second support frame 21. One end of the second spring 65 is detachably connected to the lower wall of the flip frame 61 near the center, and the other end is detachably connected to the right side wall of the second support frame 21 near the top.

[0035] As a preferred solution, further, the demonstration structure 3 includes a planet carrier 31, a crank 32, three planetary gears 33, a drive shaft 34, a sun gear 35 and fan blades 36;

[0036] The planetary carrier 31 is a triangular structure, and a fourth threaded hole corresponding to the first threaded hole is opened near the three ends. A transmission shaft is provided at the center of the left side wall of the planetary carrier 31, and a sleeve rod is provided on the right side walls of the three ends. The planetary carrier 31 passes through the first bearing of the first support frame 13 through the transmission shaft and is located in the inner gear ring 25. One end of the crank 32 can be detachably mounted on the other end of the transmission shaft. The three planetary gears 33 are respectively movably mounted on the sleeve rod and are respectively located in the inner gear ring 25 and engaged with the inner gear ring 25. One end of the drive shaft 34 can be detachably mounted on the sleeve rod and are respectively located in the inner gear ring 25 and engaged with the inner gear ring 25. One end of the drive shaft 34 can be detachably mounted on the second bearing of the second support frame 21. The sun gear 35 can be detachably mounted on one end of the drive shaft 34 and is located between the three planetary gears 33. The fan blade 36 can be detachably mounted on the other end of the drive shaft.

[0037] As a preferred solution, further, the crank 32 can be mounted on the other end of the drive shaft 34 to rotate and demonstrate the speed ratio of the input and output.

[0038] As a preferred solution, further, the inner gear ring 25 is clamped by the first limiting roller 23 and the second limiting roller 62, and can be rotated by the limiting roller and the second limiting roller 62, so as to realize different transmission speed differences according to design requirements.

[0039] As a preferred solution, further, the inner gear ring 25 can be tightened and locked by the fastening screw 24 to achieve different transmission speed differences according to design requirements.

[0040] As a preferred solution, further, the planet carrier 31 can be locked by replacing the screw 17 to achieve different transmission speed differences according to design requirements.

[0041] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific operations are as follows.

[0042] Example: According to the specification Figure 1-6 It can be seen that first, the planetary gears 33 in the demonstration structure 3 are respectively mounted on the sleeve rods of the planetary carrier 31, and then the planetary carrier 31 is installed on the first support frame 13 in the main structure 1 to limit the load;

[0043] By pulling the second support frame 21 in the fitting structure 2, it slides on the turntable 12 through the limiting rod 14 to the first support frame 13, and then compresses the first spring 16 blocked by the limiting nut 15; the sun gear 35 can then be mounted on the drive shaft 34, and the drive shaft 34 is inserted into the second support frame 21. The sun gear 35 is inserted between the three planetary gears 33 and meshed with each other due to the force of the first spring 16;

[0044] Secondly, while installing the sun gear 35, the flip frame 61 in the pressing assembly 26 is moved to both sides, so that the second spring 65 is stretched, and the bottom of the inner gear ring 25 is seated on the first limiting roller 23 on the bracket 22. Then, the force of the second spring 65 causes the flip frame 61 to flip on the second support frame 21 with the help of the mounting bolts 63 and the mounting nuts 64, so that the second limiting rollers 62 are pressed on both sides of the inner gear ring 25 to clamp and limit it. Then, the inner gear ring 25 can be mounted on the planetary gear 33 as the sun gear 35 moves.

[0045] Finally, the crank handle 32 can be mounted on one end of the planetary frame 31 or on the driving shaft 34 for rotation demonstration, and the rotation speed can be intuitively demonstrated by the rotation speed of the fan blades 36; and in the demonstration: 1) the flip frame 61 can be fastened by the mounting bolts 63 and the mounting nuts 64, and at the same time, the inner gear ring 25 can be tightened on the bracket 22 with the help of the fastening screw 24, and the inner gear ring 25 is limited and locked to prevent rotation, so that the sun gear 35 can be rotated while the planetary gear 33 is subjected to force and drives the planetary frame 31 to transmit in the inner gear ring 25; 2) the inner gear ring 25 can also be unlocked, by rotating the replacement screw 17, passing through the first support frame 13, and then being screwed in the planetary frame 31 to limit the planetary frame 31, the sun gear 35 can be rotated to drive the planetary gear 33 to rotate, and then the inner gear ring 25 can be driven to rotate for demonstration.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic transmission planetary gear mechanism operating test bench, characterized by: The invention comprises a main structure (1), a fitting structure (2) and a demonstration structure (3), wherein the fitting structure (2) is detachably mounted on the main structure (1), and the demonstration structure (3) is detachably mounted between the main structure (1) and the fitting structure (2); The main structure (1) comprises a base (11), a turntable (12), a first support frame (13), a limiting rod (14), a limiting nut (15), a first spring (16) and a replacement screw (17); The base (11) is a rectangular structure, and a rotatable shaft column is provided at the center of the upper wall, the turntable (12) is fixedly arranged on the shaft column, and sliding grooves are provided on the front and rear sides of the center line of the right end of the turntable (12), and the two ends of the bottom of the first support frame (13) are fixedly arranged on the upper wall of the left end of the turntable (12), and are respectively opposite to the sliding grooves, and a first bearing is provided at the center of the top of the first support frame (13), and a through first threaded hole is provided on the front and rear sides of the bottom of the first bearing, and a through second threaded hole is provided near the bottom of the first support frame (13), and one end of the limiting rod (14) is movably screwed into the second threaded hole and passes through the first support frame (13), and the limiting nut (15) is movably screwed on the other end of the limiting rod (14), and the first spring (16) is movably sleeved on the other end of the limiting rod (14) and is located on the left side of the limiting nut (15), and one end of the replacement screw (17) is movably screwed into the first threaded hole; The fitting structure (2) comprises a second support frame (21), a bracket (22), a first limiting roller (23), a fastening screw (24), an inner gear ring (25) and a pressing assembly (26); The second support frame (21) has the same structure as the first support frame (13), and a second bearing is embedded in the center of the top. The lower walls of both ends of the bottom of the second support frame (21) are provided with limit blocks, and first through holes are opened on both sides near the front and back of the top. The bottom end of the second support frame (21) is movably inserted into the sliding groove and movably sleeved on the limit rod (14) and located on the left side of the first spring (16). One end of the bracket (22) is respectively tilted and fixedly placed on the left side wall of the second support frame (21) near the top, and is respectively located on the second bearing. The front and rear sides are symmetrical to each other, and a third threaded hole is provided on the other end of the bracket (22) near the top center line. The first limiting roller (23) is movably arranged on the other end of the bracket (22), and the fastening screw (24) is detachably screwed into the third threaded hole at the other end of the bracket (22). The inner gear ring (25) is detachably arranged between the first limiting rollers (23). The pressing assembly (26) is detachably arranged on the right side wall of the second support frame (21) near the top, and is symmetrically located on the front and rear sides of the center line.

2. The automatic transmission planetary gear mechanism operating test bench according to claim 1, characterized in that: The pressing assembly (26) includes a turning frame (61), a second limiting roller (62), a mounting bolt (63), a mounting nut (64) and a second spring (65); One end of the flip frame (61) is detachably mounted on the right side wall of the front end of the second support frame (21) and is located at the first through-hole position, and the other end is located on the left side of the second support frame (21). The second limiting roller (62) is movably mounted on the other end of the flip frame (61) and is fitted on the right side wall of the inner gear ring (25) near the top. One end of the mounting bolt (63) is movably inserted into the first through-hole of the second support frame (21) and one end of the flip frame (61). The mounting nut (64) is movably screwed onto the mounting bolt (63) and is located on the right side of the second support frame (21). One end of the second spring (65) is detachably connected to the lower wall of the flip frame (61) near the center, and the other end is detachably connected to the right side wall of the second support frame (21) near the top.

3. The automatic transmission planetary gear mechanism operating test bench according to claim 2, characterized in that: The demonstration structure (3) includes a planetary carrier (31), a crank (32), a planetary gear (33), a driving shaft (34), a sun gear (35) and a fan blade (36); The planetary frame (31) is a triangular structure, and a fourth threaded hole corresponding to the first threaded hole is opened near the three ends. A transmission shaft is provided at the center of the left side wall of the planetary frame (31), and a sleeve rod is provided on the right side walls of the three ends. The planetary frame (31) passes through the first bearing of the first support frame (13) through the transmission shaft and is located in the inner gear ring (25). One end of the crank (32) is detachably mounted on the other end of the transmission shaft. The planetary gears (33) are movably mounted on the sleeve rod and are respectively located in the inner gear ring (25) and engaged with the inner gear ring (25). One end of the driving shaft (34) is detachably mounted on the sleeve rod and is respectively located in the inner gear ring (25) and engaged with the inner gear ring (25). One end of the driving shaft (34) is detachably mounted on the second bearing of the second support frame (21). The sun gear (35) is detachably mounted on one end of the driving shaft (34) and is located between the three planetary gears (33). The fan blade (36) is detachably mounted on the other end of the driving shaft.

4. The automatic transmission planetary gear mechanism operating test bench according to claim 3, characterized in that: The crank (32) can be mounted on the other end of the driving shaft (34).

5. The automatic transmission planetary gear mechanism operating test bench according to claim 4, characterized in that: The inner gear ring (25) is clamped by a first limiting roller (23) and a second limiting roller (62), and can be rotated by a limiting roller and a second limiting roller (62).

6. The automatic transmission planetary gear mechanism operating test bench according to claim 5, characterized in that: The inner gear ring (25) can be tightened and locked by a fastening screw (24).

7. The automatic transmission planetary gear mechanism operating test bench according to claim 6, characterized in that: The planet carrier (31) can be locked by replacing the screw (17).

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