CN214305172U

CN214305172U - Speed reducer with variable wheel base

Info

Publication number: CN214305172U
Application number: CN202120286073.7U
Authority: CN
Inventors: 王丽娜; 张曦浠
Original assignee: Guodian Longda Power Equipment Tianjin Co ltd
Current assignee: Guodian Longda Power Equipment Tianjin Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-28
Anticipated expiration: 2031-01-28

Abstract

The utility model provides a speed reducer of variable wheel base, including base, speed reducer, input shaft and output shaft, the speed reducer is installed on the base, input shaft and output shaft all connect to be established on the speed reducer, connect through fixed establishment on the output shaft and be equipped with the countershaft, install on the countershaft and can carry out gliding adjustment mechanism along the gliding butt joint axle of countershaft, still install on the countershaft and be used for the drive to carry out gliding adjustment mechanism for the countershaft. Utilize the utility model discloses the speed reducer of variable wheel base of technical scheme preparation can establish the countershaft through connecing on the output shaft to can be further drive the butt joint axle through the sleeve pipe and slide in the countershaft, change the wheel base with this, this kind of regulative mode can make the wheel base carry out linear change, eliminate the limitation that fixed variable adjusted, simultaneously, dock countershaft and output shaft through dovetail piece and dovetail, it is more convenient and stable to make the butt joint, guarantee the stability of speed reducer output.

Description

Speed reducer with variable wheel base

Technical Field

The utility model belongs to the technical field of the speed reducer, especially, relate to a speed reducer of variable wheel base.

Background

The speed reducer is generally used for a transmission device with a low rotation speed and a large torque, and the power of a motor or an internal combustion engine or other high-speed operation is reduced by the speed reducer to output at an ideal rotation speed, so that the application of the speed reducer in modern machinery is very wide, and the development and research of the speed reducer technology is never stopped.

In the prior art, the application range of the speed reducer can be expanded by changing the wheelbase of the output shaft of the speed reducer, for example, in a patent document with the publication number of CN211398520U, a speed reducer with a variable wheelbase is disclosed, the wheelbase of the speed reducer is increased by additionally installing a plurality of connecting shafts on the output shaft of the speed reducer, so that the adaptability of the speed reducer is improved, but the mode of changing the wheelbase is single and simple, the change of the wheelbase is not linear, after the connecting shafts are additionally installed each time, the variable of the wheelbase is the length of the connecting shafts, so that the limitation is large, the requirement on adjusting the wheelbase under various conditions cannot be adapted and met, and the improvement is still needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a speed reducer with a variable wheel base is designed.

The technical scheme of the utility model be, a variable wheel base's speed reducer, including base, speed reducer, input shaft and output shaft, the speed reducer is installed on the base, input shaft and output shaft all connect to establish on the speed reducer, connect through fixed establishment on the output shaft and be equipped with the countershaft, install on the countershaft and can carry out gliding adjustment mechanism along the gliding butt joint axle of countershaft, still install on the countershaft and be used for the drive to carry out gliding adjustment mechanism for the countershaft.

The fixing mechanism comprises a sleeve joint part arranged at one end of the auxiliary shaft and a plug-in part arranged at the end part of the output shaft, the sleeve joint part is provided with a dovetail groove, the plug-in part is provided with a dovetail block capable of being inserted into the dovetail groove, the dovetail groove is provided with a through hole, and the dovetail block is provided with a positioning assembly corresponding to the through hole.

The positioning assembly comprises a spring and a positioning block, the dovetail block is provided with a positioning groove corresponding to the through hole, the positioning block is embedded in the positioning groove in a sliding mode, and the spring is connected between the positioning block and the inner end face of the positioning groove.

The butt joint shaft is inserted in the auxiliary shaft, and a sliding structure is arranged between the outer wall of the butt joint shaft and the inner wall of the auxiliary shaft.

The sliding structure comprises a guide block and a guide groove, the guide groove is formed in the inner wall of the auxiliary shaft, and the guide block is installed on the outer wall of the butt joint shaft and is embedded in the guide groove in a sliding mode.

The adjusting mechanism comprises a sleeve, the sleeve is sleeved on the auxiliary shaft, the inner wall of the sleeve is matched with the outer wall of the auxiliary shaft through threads, and one end, far away from the output shaft, of the sleeve is rotatably sleeved on the butt joint shaft.

The adjusting mechanism is characterized by further comprising a limiting assembly, the limiting assembly comprises a synchronizing gear and a limiting part, the synchronizing gear is sleeved on the butt joint shaft and can move synchronously with the butt joint shaft, and the limiting part is embedded on the sleeve and can prevent the sleeve from rotating relative to the synchronizing gear.

The two sides of the limiting part are connected with clamping blocks, the sleeve is provided with clamping grooves matched with the clamping blocks, and the clamping blocks and the clamping grooves are fixed through screws.

The limiting part is provided with limiting teeth on a part body close to the synchronizing gear, the limiting teeth can be meshed with the synchronizing gear, and a pull ring is mounted on the part body of the limiting part far away from the synchronizing gear.

The end of the butt joint shaft, which is far away from the output shaft, is provided with a joint, and the joint is provided with a butt joint groove.

Utilize the utility model discloses variable wheel base's speed reducer of technical scheme preparation, its beneficial effect is:

1. the distance between the output shaft and the joint shaft can be changed by connecting the auxiliary shaft to the output shaft, and the distance between the joint on the joint shaft and the output shaft can be further changed by driving the joint shaft to slide in the auxiliary shaft through the sleeve, so that the distance between the joint on the joint shaft and the output shaft can be changed;

2. the auxiliary shaft and the output shaft are in butt joint through the fixed structure, the butt joint operation is more convenient due to the cooperation of the dovetail block and the dovetail groove, the butt joint position is more stable due to the cooperation of the through hole and the positioning block, and the output stability of the speed reducer is guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is a schematic view of a socket and spigot configuration;

fig. 3 is a schematic view of the respective structures at the output shaft.

In the figure: 1. a base; 2. a speed reducer; 3. an input shaft; 4. an output shaft; 5. a counter shaft; 6. a butt joint shaft; 7. a socket joint part; 8. a plug-in part; 9. a dovetail groove; 10. a dovetail block; 11. a through hole; 12. a spring; 13. positioning blocks; 14. positioning a groove; 15. a guide block; 16. a guide groove; 17. a sleeve; 18. a synchronizing gear; 19. a limiting member; 20. a clamping block; 21. a card slot; 22. limiting teeth; 23. a pull ring; 24. a joint; 25. and (4) butting the grooves.

Detailed Description

The following detailed description of the embodiments of the present invention is made in conjunction with the accompanying drawings, as shown in fig. 1, 2, and 3, a variable-wheelbase speed reducer 2 includes a base 1, a speed reducer 2, an input shaft 3 and an output shaft 4, the speed reducer 2 is installed on the base 1, the input shaft 3 and the output shaft 4 are all connected and established on the speed reducer 2, an auxiliary shaft 5 is connected and arranged on the output shaft 4 through a fixing mechanism, a butt joint shaft 6 capable of sliding along the auxiliary shaft 5 is installed on the auxiliary shaft 5, an adjusting mechanism for driving the butt joint shaft 6 to slide relative to the auxiliary shaft 5 is further installed on the auxiliary shaft 5, one end of the butt joint shaft 6 far away from the output shaft 4 is connected and provided with a joint 24, and a butt joint groove 25 is opened on the joint 24.

In the application, the speed reducer 2 is installed on the base 1, the speed reducer 2 can be fixed through the base 1, the speed reducer 2 is connected with an input shaft 3 and an output shaft 4, the input shaft 3 is used for butt joint of power equipment, the output shaft 4 outputs the speed reduced through the speed reducer 2, then, further, the output shaft 4 is connected with a secondary shaft 5 through a fixing mechanism, the secondary shaft 5 is provided with a butt joint shaft 6, one end of the butt joint shaft 6, far away from the output shaft 4, is connected with a joint 24, the joint 24 is provided with a butt joint groove 25, and equipment for receiving power from the outside can be connected through the butt joint groove 25, so that after the secondary shaft 5 is installed, the axial distance of the speed reducer 2 can be increased preliminarily, the speed reducer 2 is convenient to be connected with the external equipment, meanwhile, further, the butt joint shaft 6 can slide along the secondary shaft 5, and the secondary shaft 5 is also provided with an adjusting mechanism for driving the butt joint shaft 6 to slide relative to the secondary shaft 5, therefore, after the auxiliary shaft 5 is connected to the output shaft 4, the butt shaft 6 can be driven to move through the adjusting mechanism, the butt shaft 6 can slide to linearly change the distance between the shafts output by the speed reducer 2, the adaptability of the speed reducer 2 is further improved, and the application range of the speed reducer 2 is expanded.

Fixing mechanism establishes the portion 7 that cup joints at countershaft 5 one end and sets up the grafting portion 8 at the output shaft 4 tip including connecing, the dovetail 9 has been seted up on the portion 7 that cup joints, be provided with the forked tail piece 10 that can the cartridge in dovetail 9 on the grafting portion 8, through-hole 11 has been seted up on the dovetail 9, be provided with the locating component corresponding with through-hole 11 on the forked tail piece 10, locating component includes spring 12 and locating piece 13, set up the constant head tank 14 corresponding with through-hole 11 on the forked tail piece 10, locating piece 13 slides and inlays the dress in constant head tank 14, spring 12 connects to establish between the interior terminal surface of locating piece 13 and constant head tank 14.

The sleeve joint part 7 arranged at one end of the auxiliary shaft 5 and the plug-in part 8 arranged at the end part of the output shaft 4 form a fixing mechanism for fixing the auxiliary shaft 5 and the output shaft 4, the sleeve joint part 7 is provided with a dovetail groove 9, the plug-in part 8 is correspondingly provided with a dovetail block 10, when the output shaft 4 and the auxiliary shaft 5 are butted, the dovetail block 10 on the plug-in part 8 is aligned with the dovetail groove 9 in the sleeve joint part 7, then the plug-in part 8 can be inserted in the sleeve joint part 7, meanwhile, a through hole 11 is further arranged in the dovetail groove 9, a positioning groove 14 is arranged in the dovetail block 10, a positioning component is arranged in the positioning, the positioning component comprises a spring 12 and a positioning block 13, the positioning block 13 is slidably embedded in the positioning groove 14, the spring 12 is connected between the positioning block 13 and the inner end face of the positioning groove 14, when the sleeve joint part 7 and the plug-in part 8 are butted, the positioning block 13 extends out of the positioning groove 14 under the action of the spring 12, therefore, a user needs to firstly press the positioning block 13 into the positioning groove 14, then the inserting part 8 is inserted into the sleeving part 7 through the matching of the dovetail block 10 and the dovetail groove 9, the positioning block 13 enters the sleeving part 7 and still stays in the positioning groove 14 under the action of the inner wall of the sleeving part 7, at the moment, the spring 12 is in a compressed state, and along with the sliding of the inserting part 8 in the sleeving part 7, when the positioning block 13 moves to the through hole 11, the positioning block 13 can slide outwards along the positioning groove 14 under the action of the spring 12 and extends out of the through hole 11, so that the relative movement between the inserting part 8 and the sleeving part 7 is limited, and the positioning is performed.

The butt joint shaft 6 is inserted into the auxiliary shaft 5, a sliding structure is arranged between the outer wall of the butt joint shaft 6 and the inner wall of the auxiliary shaft 5, the sliding structure comprises a guide block 15 and a guide groove 16, the guide groove 16 is formed in the inner wall of the auxiliary shaft 5, the guide block 15 is installed on the outer wall of the butt joint shaft 6 and is embedded in the guide groove 16 in a sliding mode, the adjusting mechanism comprises a sleeve 17, the sleeve 17 is sleeved on the auxiliary shaft 5, the inner wall of the sleeve 17 is matched with the outer wall of the auxiliary shaft 5 through threads, and one end, far away from the output shaft 4, of the sleeve 17 is rotatably sleeved on the butt joint shaft 6.

In this application, the docking shaft 6 is inserted into the secondary shaft 5, meanwhile, the guide block 15 is installed on the outer wall of the docking shaft 6, the guide groove 16 matched with the guide block 15 is formed in the inner wall of the secondary shaft 5, the guide block 15 is slidably embedded in the guide groove 16, so that the docking shaft 6 can slide along the guide groove 16 through the guide block 15, the adjusting mechanism comprises a sleeve 17 for driving the docking shaft 6 to slide relative to the secondary shaft 5, the sleeve 17 is sleeved on the secondary shaft 5, the inner wall of the sleeve 17 is matched with the outer wall of the secondary shaft 5 through threads, when the sleeve 17 is rotated, the sleeve 17 can move along the secondary shaft 5, and because one end, far away from the output shaft 4, of the sleeve 17 is rotatably sleeved on the docking shaft 6, the docking shaft 6 can move along the secondary shaft 5 along with the sleeve 17.

The adjusting mechanism is still including spacing subassembly, spacing subassembly includes synchronous gear 18 and locating part 19, synchronous gear 18 suit is on butt joint axle 6 and can with butt joint axle 6 synchronous motion, locating part 19 inlays the dress and just can obstruct sleeve pipe 17 and rotate for synchronous gear 18 on the sleeve pipe 17, the both sides of locating part 19 connect and are equipped with fixture block 20, set up the draw-in groove 21 with fixture block 20 looks adaptation on the sleeve pipe 17, it is fixed mutually through the screw between fixture block 20 and the draw-in groove 21, locating part 19 is provided with spacing tooth 22 on being close to synchronous gear 18's the part body, spacing tooth 22 can mesh with synchronous gear 18 mutually, install pull ring 23 on the part body that synchronous gear 18 was kept away from to locating part 19.

In the application, the adjusting mechanism further includes a limiting component, the limiting component includes a synchronous gear 18 and a limiting piece 19, the synchronous gear 18 is sleeved on the butt-joint shaft 6 and can move along with the butt-joint shaft 6, the limiting piece 19 is embedded on the sleeve 17, two sides of the limiting piece 19 are provided with fixture blocks 20, the sleeve 17 is provided with a clamping groove 21 matched with the fixture blocks 20, the fixture blocks 20 are fixed in the clamping groove 21 through screws, a limiting tooth 22 is arranged on a piece body of the limiting piece 19 close to the synchronous gear 18, the limiting tooth 22 can be meshed with the synchronous gear 18, therefore, when the limiting piece 19 is embedded on the sleeve 17, the limiting tooth 22 on the limiting piece 19 is meshed with the synchronous gear 18, and meanwhile, the limiting piece 19 is fixed on the sleeve 17 through screws, so that the sleeve 17 cannot rotate relative to the synchronous gear 18, and the motion states of the synchronous gear 18 and the butt-joint shaft 6 are synchronous, sleeve pipe 17 also can't carry out the pair slip with butt joint axle 6, consequently butt joint axle 6 can't move for sleeve pipe 17 this moment, just also can't slide in countershaft 5, can guarantee the stability of butt joint axle 6 output power, when needs adjusting the wheel base, only need the screw of unscrewing, pull out locating part 19 through the pull ring 23 that sets up on locating part 19, just can carry out the motion through sleeve pipe 17 drive butt joint axle 6 once more, adjust after once more through the fix with screw go up locating part 19 can, it is more convenient also to make the process of locating part 19 installation and dismantlement through pull ring 23.

Utilize the utility model discloses a variable wheel base's speed reducer of technical scheme preparation, can change the wheel base through connecing to establish the countershaft on the output shaft, and can be further drive the butt joint axle through the sleeve pipe and slide in the countershaft, change the distance between butt joint epaxial joint and the output shaft, change the wheel base with this, this kind of regulative mode, can make the wheel base carry out linear change, eliminate the limitation that fixed variable adjusted, further application range who enlarges the speed reducer, and simultaneously, through fixed knot structure butt joint countershaft and output shaft, wherein the cooperation of dovetail piece and dovetail makes butt joint operation more convenient, cooperation through-hole and locating piece makes the butt joint more stable simultaneously, guarantee the stability of speed reducer output.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a speed reducer of variable wheel base, includes base (1), speed reducer (2), input shaft (3) and output shaft (4), speed reducer (2) are installed on base (1), input shaft (3) and output shaft (4) all connect to establish on speed reducer (2), its characterized in that: the output shaft (4) is connected with a secondary shaft (5) through a fixing mechanism, the secondary shaft (5) is provided with a butt joint shaft (6) capable of sliding along the secondary shaft (5), and the secondary shaft (5) is further provided with an adjusting mechanism for driving the butt joint shaft (6) to slide relative to the secondary shaft (5).

2. A variable wheelbase reduction gear according to claim 1, characterized in that: fixing mechanism establishes cup joint portion (7) and the grafting portion (8) of setting at output shaft (4) tip at countershaft (5) one end including connecing, dovetail (9) have been seted up on cup joint portion (7), be provided with dovetail block (10) that can the cartridge in dovetail (9) on grafting portion (8), through-hole (11) have been seted up on dovetail (9), be provided with the locating component corresponding with through-hole (11) on dovetail block (10).

3. A variable wheelbase reduction gear according to claim 2, wherein: the positioning assembly comprises a spring (12) and a positioning block (13), a positioning groove (14) corresponding to the through hole (11) is formed in the dovetail block (10), the positioning block (13) is embedded in the positioning groove (14) in a sliding mode, and the spring (12) is connected and arranged between the positioning block (13) and the inner end face of the positioning groove (14).

4. A variable wheelbase reduction gear according to claim 1, characterized in that: the butt joint shaft (6) is inserted in the auxiliary shaft (5), and a sliding structure is arranged between the outer wall of the butt joint shaft (6) and the inner wall of the auxiliary shaft (5).

5. The variable wheelbase speed reducer of claim 4, wherein: the sliding structure comprises a guide block (15) and a guide groove (16), the guide groove (16) is formed in the inner wall of the auxiliary shaft (5), and the guide block (15) is installed on the outer wall of the butt joint shaft (6) and is embedded in the guide groove (16) in a sliding mode.

6. A variable wheelbase reduction gear according to claim 1, characterized in that: the adjusting mechanism comprises a sleeve (17), the sleeve (17) is sleeved on the auxiliary shaft (5), the inner wall of the sleeve (17) is matched with the outer wall of the auxiliary shaft (5) through threads, and one end, far away from the output shaft (4), of the sleeve (17) is rotatably sleeved on the butt joint shaft (6).

7. The variable wheelbase speed reducer of claim 6, wherein: the adjusting mechanism is further provided with a limiting assembly, the limiting assembly comprises a synchronous gear (18) and a limiting piece (19), the synchronous gear (18) is sleeved on the butt joint shaft (6) and can move synchronously with the butt joint shaft (6), and the limiting piece (19) is embedded on the sleeve (17) and can prevent the sleeve (17) from rotating relative to the synchronous gear (18).

8. A variable wheelbase reduction gear according to claim 7, wherein: the two sides of the limiting piece (19) are connected with clamping blocks (20), the sleeve (17) is provided with clamping grooves (21) matched with the clamping blocks (20), and the clamping blocks (20) and the clamping grooves (21) are fixed through screws.

9. A variable wheelbase reduction gear according to claim 8, wherein: spacing tooth (22) are provided with on the body that locating part (19) are close to synchronizing gear (18), spacing tooth (22) can mesh with synchronizing gear (18) mutually, install pull ring (23) on the body that synchronizing gear (18) were kept away from in locating part (19).

10. A variable wheelbase reduction gear according to claim 1, characterized in that: one end of the butt joint shaft (6) far away from the output shaft (4) is connected with a joint (24), and the joint (24) is provided with a butt joint groove (25).