Speed reducer

Abstract

According to the speed reducer, the power input part is driven to work by starting the power motor, and when the power input part works, the power output part is synchronously driven to work through the switching part. When the switching part is in the locking state, the relative angle between the power input part and the power output part is fixed, and then the output angle of the power output part is fixed. When the switching part is in the unlocking state, the power input part and the power output part are subjected to angle rotation through the switching part so that the relative angle between the power input part and the power output part can be adjusted, and the switching part is in the locking state again so that the relative angle between the power input part and the power output part can be locked. And therefore, the speed reducer can be suitable for different working environments.

Description

Technical Field

[0001] The present application relates to the technical field of reducers, and in particular to a reducer. Background Art

[0002] Reducers are generally used in low-speed, high-torque transmission equipment. The power of electric motors, internal combustion engines or other high-speed running engines is decelerated by meshing the gear with fewer teeth on the input shaft of the reducer with the larger gear on the output shaft. Ordinary reducers also have several pairs of gears with the same principle to achieve the ideal deceleration effect. The ratio of the number of teeth of the large and small gears is the transmission ratio.

[0003] Currently, most reducer structures consist of a reduction motor connected to a reduction gearbox, with an output shaft inserted into a sleeve at the output end of the reduction gearbox. This technical solution results in uneven stress distribution between the output shaft and the output end of the reduction gearbox, affecting the service life of the reduction gearbox and the output shaft, as well as the output torque limit of the entire reducer. Because the reduction motor and the output shaft are essentially at a relatively fixed angle, the entire reducer has high requirements for installation position, often requiring a certain amount of space to be reserved for the reducer installation, resulting in low space utilization. Summary of the Invention

[0004] Based on this, it is necessary to provide a reducer to address the problems of uneven stress distribution between the output shaft of the traditional reducer and the output end of the reduction gearbox, and the reducer having too high requirements on the installation position, which often requires reserving a certain space for installing the reducer.

[0005] The present application provides a reducer, comprising:

[0006] Power motor;

[0007] A reduction gearbox, the power motor is fixedly connected to the reduction gearbox;

[0008] The reduction gearbox comprises:

[0009] A power input part, the power motor is fixedly connected to the power input part;

[0010] A power output part is provided on one side of the power input part;

[0011] an adapter portion, disposed between the power input portion and the power output portion, the power input portion and the power output portion being connected via the adapter portion, one end of the adapter portion being fixedly connected to the power input portion, and the other end of the adapter portion being fixedly connected to the power output portion;

[0012] The transfer part has a locked state and an unlocked state. When the transfer part is in the locked state, the relative angle between the power input part and the power output part is fixed; when the transfer part is in the unlocked state, the power input part is rotatably connected to the transfer part, and the power output part is rotatably connected to the transfer part.

[0013] Furthermore, the transfer part includes:

[0014] A first transfer member is disposed between the power input part and the power output part. One end of the first transfer member is fixedly connected to the power input part, and the other end of the first transfer member is fixedly connected to the power output part;

[0015] A second transfer member is rotatably disposed inside the first transfer member. One end of the second transfer member is in gear transmission cooperation with the power input part, and the other end of the second transfer member is in gear transmission cooperation with the power output part.

[0016] Furthermore, the first transfer member includes:

[0017] A support cylinder is disposed between the power input part and the power output part. One end of the support cylinder is rotatably connected to the power input part, and the other end of the support cylinder is rotatably connected to the power output part;

[0018] Locking members are provided in plurality. The plurality of locking members are all disposed on the support cylinder. The plurality of locking members are equidistantly arranged along the circumferential direction of the support cylinder. One end of each locking member is inserted into the power input part, and the other end of each locking member is inserted into the power output part;

[0019] A driving member is slidably disposed on the support cylinder, and each locking member is fixedly connected to the driving member. [[ID=XX]] [[ID=XX]]

[0020] Furthermore, the locking member includes:

[0021] A first locking rod is slidably connected to the support cylinder, and the first locking rod is inserted into the power input part;

[0022] A second locking rod is slidably connected to the support cylinder, and the second locking rod is inserted into the power output part;

[0023] A transfer rod is rotatably disposed on the support cylinder. The transfer rod is disposed between the first locking rod and the second locking rod. One end of the first locking rod is inserted into the transfer rod, and the other end of the second locking rod is inserted into the transfer rod;

[0024] A limiting rod is fixedly disposed on the support cylinder, and the limiting rod is inserted into the second locking rod;

[0025] A return spring is sleeved on the limiting rod. One end of the return spring is fixedly connected to the second locking rod, and the other end of the return spring is fixedly connected to the support cylinder;

[0026] The driving member is fixedly connected to the second locking rod.

[0027] Further, a first limiting groove is formed at one end of the adapter rod, and the first locking rod is inserted into the first limiting groove;

[0028] A second limiting groove is formed at the other end of the adapter rod, and the second locking rod is inserted into the second limiting groove.

[0029] Further, the second adapter includes:

[0030] A first support shaft is rotatably arranged in the support cylinder, and the first support shaft is connected to the support cylinder through a bearing;

[0031] A first gear is fixedly connected to one end of the first support shaft, and the first gear is in gear transmission cooperation with the power input part;

[0032] A second gear is fixedly connected to the other end of the first support shaft, and the second gear is in gear transmission cooperation with the power output part.

[0033] Further, the power input part includes:

[0034] A first housing, the power motor is fixedly connected to the first housing, and the support cylinder is rotatably connected to the first housing;

[0035] A first rotating shaft is rotatably arranged inside the first housing;

[0036] A third gear is fixedly sleeved on the first rotating shaft. The third gear is in gear transmission cooperation with the power motor, and the third gear is also in gear transmission cooperation with the first gear.

[0037] Further, the power input part further includes:

[0038] A first bearing part is fixedly arranged at one end of the first rotating shaft, and the first bearing part is fixedly sleeved on the first rotating shaft;

[0039] A second bearing part is fixedly arranged at the other end of the first rotating shaft, and the second bearing part is fixedly sleeved on the first rotating shaft.

[0040] Further, the power output part includes:

[0041] A second housing, the support cylinder is rotatably connected to the second housing;

[0042] The second rotating shaft is inserted into the second housing;

[0043] The fourth gear is arranged inside the second housing. The fourth gear is fixedly sleeved on the second rotating shaft, and the fourth gear is in gear transmission cooperation with the second gear.

[0044] Furthermore, the power output part further includes:

[0045] The third bearing part is fixedly arranged inside the second housing. The third bearing part is fixedly sleeved on the second rotating shaft;

[0046] The fourth bearing part is fixedly arranged on the second housing. The fourth bearing part is fixedly sleeved on the second rotating shaft.

[0047] This application relates to a speed reducer. By starting the power motor, the power input part is driven to work. When the power input part works, it will drive the power output part to work synchronously through the transfer part. Among them, when the transfer part is in the locked state, the relative angle between the power input part and the power output part is fixed, so that the output angle of the power output part is fixed. When the transfer part is in the unlocked state, the angle between the power input part and the power output part rotates through the transfer part, so that the relative angle between the power input part and the power output part is adjusted. By making the transfer part in the locked state again to lock the relative angle between the power input part and the power output part, the speed reducer can be applied to different working environments. Description of the Drawings

[0048] Figure 1 It is a schematic structural diagram of the speed reducer provided by an embodiment of this application.

[0049] Figure 2 It is a schematic diagram of the positional relationship between the first transfer member and the second transfer member in the speed reducer provided by an embodiment of this application.

[0050] Figure 3 It is a schematic diagram of the positional relationship between the support cylinder of the speed reducer and the driving member provided by an embodiment of this application.

[0051] Figure 4 It is a schematic diagram of the positional relationship between the power input part and the power output part in the speed reducer provided by an embodiment of this application.

[0052] Figure 5 It is Figure 4 the enlarged view of part a in

[0053] Figure 6 It is a schematic diagram of the positional relationship between the first gear and the second gear in the speed reducer provided by an embodiment of this application.

[0054] Figure 7 Schematic diagram of the positional relationship between the third bearing portion and the fourth bearing portion in the reducer provided in one embodiment of the present application

[0055] Figure 8 Schematic diagram of the positional relationship between the oil seal and the fifth bearing portion in the reducer provided in one embodiment of the present application

[0056] Reference numerals:

[0057] 11. Power motor; 12. Reducer; 121. Power input unit; 121a. First housing;

[0058] 121b, first rotating shaft; 121c, third gear; 121d, first bearing;

[0059] 121e, second bearing portion; 122, power output portion; 122a, second housing;

[0060] 122b, second rotating shaft; 122c, fourth gear; 122d, third bearing;

[0061] 122e, fourth bearing portion; 123, adapter portion; 123a, first adapter; 123b, second adapter;

[0062] 13. Support cylinder; 14. Locking member; 141. First locking rod; 142. Second locking rod;

[0063] 143, transfer rod; 143a, first limiting groove; 143b, second limiting groove; 144, limiting rod;

[0064] 145. Return spring; 15. Driving member; 16. First support shaft; 17. First gear;

[0065] 18. Second gear; 19. Flange; 20. Oil seal; 21. Fifth bearing. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0067] like Figures 1 to 4 As shown, in one embodiment of the present application, the reducer includes: a power motor 11 and a reduction box 12

[0068] The power motor 11 is fixedly connected to the reduction box 12 .

[0069] The speed reducer 12 includes: a power input part 121, a power output part 122, and a transfer part 123.

[0070] The power motor 11 is fixedly connected to the power input part 121.

[0071] The power output part 122 is arranged on one side of the power input part 121.

[0072] The transfer part 123 is arranged between the power input part 121 and the power output part 122. The power input part 121 and the power output part 122 are connected through the transfer part 123. One end of the transfer part 123 is fixedly connected to the power input part 121, and the other end of the transfer part 123 is fixedly connected to the power output part 122.

[0073] The transfer part 123 has a locked state and an unlocked state. When the transfer part 123 is in the locked state, the relative angle between the power input part 121 and the power output part 122 is fixed; when the transfer part 123 is in the unlocked state, the power input part 121 is rotatably connected to the transfer part 123, and the power output part 122 is rotatably connected to the transfer part 123.

[0074] Specifically, the output shaft of the power motor 11 is inserted into the interior of the power input part 121 and is in gear transmission cooperation with the power input part 121; the power motor 11 is fixed to the power input part 121 by bolts. The output end of the traditional speed reducer is the cooperation of a shaft sleeve and a bearing, while the present application uses an integral shaft directly in cooperation with the bearing. Compared with the installation method of the traditional output shaft, the integral shaft in the present application will not have the phenomenon of stress concentration, and the upper limit of the output torque of the integral shaft during use is higher and the service life is longer.

[0075] In this embodiment, by starting the power motor 11 to drive the power input part 121 to work, when the power input part 121 works, it will synchronously drive the power output part 122 to work through the transfer part 123. Among them, when the transfer part 123 is in the locked state, the relative angle between the power input part 121 and the power output part 122 is fixed, so that the output angle of the power output part 122 is fixed. When the transfer part 123 is in the unlocked state, the power input part 121 and the power output part 122 rotate in angle through the transfer part 123 to adjust the relative angle between the power input part 121 and the power output part 122, and by making the transfer part 123 in the locked state again to lock the relative angle between the power input part 121 and the power output part 122, so that the speed reducer can be applicable to different working environments.

[0076] Such as Figure 2As shown, in an embodiment of the present application, the adapter portion 123 includes: a first adapter 123a and a second adapter 123b.

[0077] The first adapter 123a is disposed between the power input portion 121 and the power output portion 122. One end of the first adapter 123a is fixedly connected to the power input portion 121, and the other end of the first adapter 123a is fixedly connected to the power output portion 122.

[0078] The second adapter 123b is rotatably disposed inside the first adapter 123a. One end of the second adapter 123b is in gear transmission cooperation with the power input portion 121, and the other end of the second adapter 123b is in gear transmission cooperation with the power output portion 122.

[0079] In this embodiment, the two ends of the first adapter 123a are respectively connected to the power input portion 121 and the power output portion 122, so that the relative position and relative angle between the power input portion 121 and the power output portion 122 are fixed. The two ends of the second adapter 123b are respectively in transmission cooperation with the power input portion 121 and the power output portion 122, so that power transmission is achieved between the power input portion 121 and the power output portion 122.

[0080] As Figure 3 shown, in an embodiment of the present application, the first adapter 123a includes: a support cylinder 13, a plurality of locking members 14, and a driving member 15.

[0081] The support cylinder 13 is disposed between the power input portion 121 and the power output portion 122. One end of the support cylinder 13 is rotatably connected to the power input portion 121, and the other end of the support cylinder 13 is rotatably connected to the power output portion 122.

[0082] A plurality of locking members 14 are provided. The plurality of locking members 14 are all disposed on the support cylinder 13. The plurality of locking members 14 are equidistantly arranged along the circumferential direction of the support cylinder 13. One end of each locking member 14 is inserted into the power input portion 121, and the other end of each locking member 14 is inserted into the power output portion 122.

[0083] The driving member 15 is slidably disposed on the support cylinder 13, and each locking member 14 is fixedly connected to the driving member 15.

[0084] Specifically, both ends of the support cylinder 13 are hermetically connected to the power input part 121 and the power output part 122 respectively. Pushing the driving part 15 to move can make the locking part 14 synchronously withdraw from the power input part 121 and the power output part 122, and when the driving part 15 is released, the locking part 14 synchronously inserts into the power input part 121 and the power output part 122.

[0085] In this embodiment, both ends of the support cylinder 13 are rotatably connected to the power input part 121 and the power output part 122 respectively, so that the power input part 121 and the power output part 122 can rotate relative to each other. By pushing the driving part 15 to make the locking part 14 insert into the power input part 121 and the power output part 122 at the same time, the relative angle between the power input part 121 and the power output part 122 is locked. By pushing the driving part 15 to make the locking part 14 disengage from the power input part 121 and the power output part 122 at the same time, the locking of the relative angle between the power input part 121 and the power output part 122 is unlocked.

[0086] As Figure 5 shown, in an embodiment of the present application, the locking part 14 includes: a first locking rod 141, a second locking rod 142, a connecting rod 143, a limiting rod 144 and a return spring 145.

[0087] The first locking rod 141 is slidably connected to the support cylinder 13, and the first locking rod 141 is inserted into the power input part 121.

[0088] The second locking rod 142 is slidably connected to the support cylinder 13, and the second locking rod 142 is inserted into the power output part 122.

[0089] The connecting rod 143 is rotatably arranged on the support cylinder 13, the connecting rod 143 is arranged between the first locking rod 141 and the second locking rod 142, one end of the first locking rod 141 is inserted into the connecting rod 143, and the other end of the second locking rod 142 is inserted into the connecting rod 143.

[0090] The limiting rod 144 is fixedly arranged on the support cylinder 13, and the limiting rod 144 is inserted into the second locking rod 142.

[0091] The return spring 145 is sleeved on the limiting rod 144, one end of the return spring 145 is fixedly connected to the second locking rod 142, and the other end of the return spring 145 is fixedly connected to the support cylinder 13.

[0092] The driving part 15 is fixedly connected to the second locking rod 142.

[0093] One end of the adapter rod 143 is provided with a first limiting groove 143a, and the first locking rod 141 is inserted into the first limiting groove 143a.

[0094] The other end of the adapter rod 143 is provided with a second limiting groove 143b, and the second locking rod 142 is inserted into the second limiting groove 143b.

[0095] Specifically, when the driving member 15 is pushed to drive the second locking rod 142 to move, the second locking rod 142 slides along the limiting rod 144, and the second locking rod 142 compresses the return spring 145. When the driving member 15 is released, the driving member 15 is reset under the elastic force of the return spring 145.

[0096] In this embodiment, by pushing the driving member 15, the second locking rod 142 is synchronously driven to slide along the support cylinder 13. At this time, the second locking rod 142 is in the process of withdrawing from the power output part 122. While the second locking rod 142 slides along the support cylinder 13, the second locking rod 142 drives the adapter rod 143 to rotate. At this time, the adapter rod 143 drives the first locking rod 141 to slide along the support cylinder 13. At this time, the first locking rod 141 is in the process of withdrawing from the power input part 121. When the driving member 15 cannot be pushed, the first locking rod 141 completely withdraws from the power input part 121, and the second locking rod 142 completely withdraws from the power output part 122. At this time, the rotational locking between the power input part 121 and the power output part 122 is released.

[0097] When the angle between the power input part 121 and the power output part 122 is adjusted, the driving member 15 is released at this time, and the driving member 15 is reset under the action of the elastic restoring force of the return spring 145. At this time, the first locking rod 141 is inserted into the power input part 121 again, and the second locking rod 142 is inserted into the power output part 122 again. At this time, the relative angle between the power input part 121 and the power output part 122 is fixed.

[0098] As Figure 6 shown, in an embodiment of the present application, the second adapter 123b includes: a first support shaft 16, a first gear 17 and a second gear 18.

[0099] The first support shaft 16 is rotatably arranged in the support cylinder 13, and the first support shaft 16 is connected to the support cylinder 13 through a bearing.

[0100] The first gear 17 is fixedly connected to one end of the first support shaft 16, and the first gear 17 is in gear transmission cooperation with the power input part 121.

[0101] The second gear 18 is fixedly connected to the other end of the first support shaft 16, and the second gear 18 is in gear transmission cooperation with the power output portion 122.

[0102] In this embodiment, the power input portion 121 drives the first gear 17 to rotate, thereby synchronously driving the first support shaft 16 and the second gear 18 to rotate, and the rotation of the second gear 18 synchronously drives the power output portion 122 to work.

[0103] Such as Figure 7 As shown, in an embodiment of the present application, the power input portion 121 includes: a first housing 121a, a first rotating shaft 121b, and a third gear 121c.

[0104] The power motor 11 is fixedly connected to the first housing 121a, and the support cylinder 13 is rotatably connected to the first housing 121a.

[0105] The first rotating shaft 121b is rotatably disposed inside the first housing 121a.

[0106] The third gear 121c is fixedly sleeved on the first rotating shaft 121b, the third gear 121c is in gear transmission cooperation with the power motor 11, and the third gear 121c is also in gear transmission cooperation with the first gear 17.

[0107] The power input portion 121 further includes: a first bearing portion 121d and a second bearing portion 121e.

[0108] The first bearing portion 121d is fixedly disposed at one end of the first rotating shaft 121b, and the first bearing portion 121d is fixedly sleeved on the first rotating shaft 121b.

[0109] The second bearing portion 121e is fixedly disposed at the other end of the first rotating shaft 121b, and the second bearing portion 121e is fixedly sleeved on the first rotating shaft 121b.

[0110] Specifically, the positions of both ends of the first rotating shaft 121b are respectively defined by the first bearing portion 121d and the second bearing portion 121e, so that the stability of the third gear 121c during rotation is higher.

[0111] In this embodiment, by starting the power motor 11 to drive the first rotating shaft 121b to rotate, thereby synchronously driving the third gear 121c to rotate, and the rotation of the third gear 121c will synchronously drive the first gear 17 to rotate.

[0112] Such as Figure 7As shown, in an embodiment of the present application, the power output unit 122 includes: a second housing 122a, a second rotating shaft 122b, and a fourth gear 122c.

[0113] The support cylinder 13 is rotatably connected to the second housing 122a.

[0114] The second rotating shaft 122b is inserted into the second housing 122a.

[0115] The fourth gear 122c is disposed inside the second housing 122a. The fourth gear 122c is fixedly sleeved on the second rotating shaft 122b, and the fourth gear 122c is in gear transmission cooperation with the second gear 18.

[0116] The power output unit 122 further includes: a third bearing portion 122d and a fourth bearing portion 122e.

[0117] The third bearing portion 122d is fixedly disposed inside the second housing 122a. The third bearing portion 122d is fixedly sleeved on the second rotating shaft 122b.

[0118] The fourth bearing portion 122e is fixedly disposed on the second housing 122a. The fourth bearing portion 122e is fixedly sleeved on the second rotating shaft 122b.

[0119] Specifically, the positions of both ends of the second rotating shaft 122b are defined by the third bearing portion 122d and the fourth bearing portion 122e respectively, so that the second rotating shaft 122b has higher stability when rotating.

[0120] In this embodiment, the second gear 18 rotates to drive the fourth gear 122c to rotate synchronously, and the rotation of the fourth gear 122c will drive the second rotating shaft 122b to rotate synchronously.

[0121] As Figure 8 shown, in an embodiment of the present application, the speed reducer further includes: a flange 19, a seal member 20, and a fifth bearing portion 21.

[0122] The flange 19 is disposed at the bottom of the second housing 122a, and the flange 19 is fixedly connected to the second housing 122a.

[0123] The seal member 20 is disposed at the bottom of the third bearing portion 122d. The seal member 20 is sleeved on the second rotating shaft 122b, and the seal member 20 is fixedly connected to the flange 19.

[0124] The fifth bearing portion 21 is disposed at the bottom of the oil seal 20. The fifth bearing portion 21 is sleeved on the second rotating shaft 122b, and the fifth bearing portion 21 is fixedly connected to the flange 19.

[0125] Specifically, the oil seal 20 is a rotary shaft lip seal, and two oil seals are stacked and sleeved on the second rotating shaft 122b.

[0126] In this embodiment, it is fixedly connected to the bottom of the second housing 122a through the flange 19, so that the oil seal 20 is fixedly connected to the flange 19 and sleeved on the second rotating shaft 122b to achieve oil sealing. And the fourth bearing portion 122e, the third bearing portion 122d, and the second bearing portion 121e are respectively sleeved at different positions on the second rotating shaft 122b, thereby fixing the position of the second rotating shaft 122b to make the rotation of the second rotating shaft 122b more stable.

[0127] The technical features of the above-described embodiments can be combined arbitrarily, and there is no limitation on the execution order of the method steps. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0128] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A speed reducer, characterized in that, The speed reducer includes: A power motor; A reduction gearbox, with the power motor fixedly connected to the reduction gearbox; The reduction gearbox includes: A power input part, with the power motor fixedly connected to the power input part; A power output part, arranged on one side of the power input part; A transfer part, arranged between the power input part and the power output part. The power input part and the power output part are connected through the transfer part. One end of the transfer part is fixedly connected to the power input part, and the other end of the transfer part is fixedly connected to the power output part; The transfer part has a locked state and an unlocked state. When the transfer part is in the locked state, the relative angle between the power input part and the power output part is fixed; when the transfer part is in the unlocked state, the power input part is rotatably connected to the transfer part, and the power output part is rotatably connected to the transfer part; The power output part includes: A second housing, with the transfer part rotatably connected to the second housing; A second rotating shaft, inserted into the second housing; A fourth gear, arranged inside the second housing, with the fourth gear fixedly sleeved on the second rotating shaft.

2. The speed reducer according to claim 1, characterized in that The transfer part includes: A first transfer member, arranged between the power input part and the power output part. One end of the first transfer member is fixedly connected to the power input part, and the other end of the first transfer member is fixedly connected to the power output part; A second transfer member, rotatably arranged inside the first transfer member. One end of the second transfer member is in gear transmission cooperation with the power input part, and the other end of the second transfer member is in gear transmission cooperation with the power output part.

3. The speed reducer according to claim 2, wherein, The first transfer member includes: A support cylinder, arranged between the power input part and the power output part. One end of the support cylinder is rotatably connected to the power input part, and the other end of the support cylinder is rotatably connected to the power output part; Locking members, provided in multiple numbers. All the multiple locking members are arranged on the support cylinder, and the multiple locking members are equidistantly arranged along the circumferential direction of the support cylinder. One end of each locking member is inserted into the power input part, and the other end of each locking member is inserted into the power output part; A driving member, slidably arranged on the support cylinder, and each locking member is fixedly connected to the driving member.

4. The speed reducer according to claim 3, wherein The locking member includes: A first locking rod, slidably connected to the support cylinder, with the first locking rod inserted into the power input part; A second locking rod, slidably connected to the support cylinder, with the second locking rod inserted into the power output part; A transfer rod, rotatably arranged on the support cylinder, with the transfer rod arranged between the first locking rod and the second locking rod. One end of the first locking rod is inserted into the transfer rod, and the other end of the second locking rod is inserted into the transfer rod; A limiting rod, fixedly arranged on the support cylinder, with the limiting rod inserted into the second locking rod; A return spring, sleeved on the limiting rod, with one end of the return spring fixedly connected to the second locking rod and the other end of the return spring fixedly connected to the support cylinder; The driving member is fixedly connected to the second locking rod.

5. The speed reducer according to claim 4, characterized in that, One end of the adapter rod is provided with a first limiting groove, and the first locking rod is inserted into the first limiting groove; The other end of the adapter rod is provided with a second limiting groove, and the second locking rod is inserted into the second limiting groove.

6. The speed reducer according to claim 5, characterized in that, The second adapter includes: A first support shaft rotatably arranged in the support cylinder, and the first support shaft is connected to the support cylinder through a bearing; A first gear fixedly connected to one end of the first support shaft, and the first gear is in gear transmission cooperation with the power input part; A second gear fixedly connected to the other end of the first support shaft, and the second gear is in gear transmission cooperation with the power output part.

7. The speed reducer according to claim 6, characterized in that, The power input part includes: A first housing, the power motor is fixedly connected to the first housing, and the support cylinder is rotatably connected to the first housing; A first rotating shaft rotatably arranged inside the first housing; A third gear fixedly sleeved on the first rotating shaft, the third gear is in gear transmission cooperation with the power motor, and the third gear is also in gear transmission cooperation with the first gear.

8. The speed reducer according to claim 7, wherein The power input part further includes: A first bearing part fixedly arranged at one end of the first rotating shaft, and the first bearing part is fixedly sleeved on the first rotating shaft; A second bearing part fixedly arranged at the other end of the first rotating shaft, and the second bearing part is fixedly sleeved on the first rotating shaft.

9. The speed reducer according to claim 8, characterized in that, The fourth gear is in gear transmission cooperation with the second gear.

10. The speed reducer according to claim 9, wherein The power output part further includes: A third bearing part fixedly arranged inside the second housing, and the third bearing part is fixedly sleeved on the second rotating shaft; A fourth bearing part fixedly arranged on the second housing, and the fourth bearing part is fixedly sleeved on the second rotating shaft.

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