CN218063260U - Speed reducer - Google Patents
Speed reducer Download PDFInfo
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- CN218063260U CN218063260U CN202221679504.7U CN202221679504U CN218063260U CN 218063260 U CN218063260 U CN 218063260U CN 202221679504 U CN202221679504 U CN 202221679504U CN 218063260 U CN218063260 U CN 218063260U
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- speed
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Abstract
The utility model relates to a speed reducer technical field, concretely relates to speed reducer. Comprises a slide block which is fixedly connected with a main shaft of a rotation source; an electric slip ring is sleeved on the main shaft; a sliding groove is processed in the sliding block, a screw rod is installed in the sliding groove, one end of the screw rod is connected with an output shaft of a speed reducing motor, and the speed reducing motor is electrically connected with an electric slip ring; one end of the connecting rod is provided with a first bearing, a nut is installed in the first bearing, and the nut is meshed with the lead screw; the position of the nut is adjusted through a speed reducing motor, and a second bearing is arranged at the other end of the connecting rod; the two ends of the rack are provided with box type sliding blocks, the rack is arranged on the optical axis through the box type sliding blocks, and one end of the rack is connected with the second bearing through a connecting shaft; the optical axis is arranged on the optical axis bracket; and the gear is meshed with the rack and is arranged on the one-way bearing, and a shaft is arranged in the one-way bearing. Through the adjusting mode of the screw rod and the screw nut, the rotating radius of the sliding block can be adjusted at will, and the speed after speed reduction can reach the required speed from zero.
Description
Technical Field
The utility model relates to a speed reducer technical field, concretely relates to speed reducer.
Background
The speed reducer is a mechanical transmission device in various fields of national economy, and the product category related to the industry comprises various gear speed reducers, wherein the ratio of the number of teeth of a large gear and a small gear of the gear speed reducer is the transmission ratio, so the speed range which can be adjusted by the transmission of the gear speed reducers is limited to the size and the number of the gears. The precise adjustment of the transmission speed cannot be satisfied.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a speed reducer to solve among the prior art speed reducer and can not adjust the problem of speed after slowing down at will.
In order to realize the purpose, the utility model discloses a technical scheme as follows: a speed reducer comprises a slide block, a driving shaft and a driving shaft, wherein the slide block is fixedly connected with a main shaft of a rotation source; an electric slip ring is sleeved on the main shaft;
a sliding groove is processed in the sliding block, a screw rod is installed in the sliding groove, one end of the screw rod is connected with an output shaft of a speed reducing motor, and the speed reducing motor is electrically connected with an electric slip ring;
one end of the connecting rod is provided with a first bearing, a nut is installed in the first bearing, and the nut is meshed with the lead screw; the position of the nut is adjusted through a speed reducing motor, and a second bearing is arranged at the other end of the connecting rod;
the two ends of the rack are provided with box type sliding blocks, the rack is arranged on the optical axis through the box type sliding blocks, and one end of the rack is connected with the second bearing through a connecting shaft; the optical axis is arranged on the optical axis bracket;
and the gear is meshed with the rack and is arranged on a one-way bearing, and a shaft is arranged in the one-way bearing.
Furthermore, third bearings are arranged at two ends of the sliding groove, and two ends of the screw rod are installed on the third bearings.
Furthermore, a sliding block cover is arranged on the sliding block, and limiting devices are arranged on the sliding block covers on the two sides of the screw rod.
Furthermore, the number of the one-way bearings is 2, and the one-way bearings are installed on the second bearing seat in the same direction.
Furthermore, the two racks are arranged in a vertically staggered manner, box-type sliding blocks are mounted at two ends of each rack, the racks are mounted on the optical axis through the box-type sliding blocks, tooth surfaces of the two racks are opposite, the number of the gears is two, and each gear is meshed with one rack.
Further, the output shaft of the speed reducing motor is fixedly connected with the screw rod through a coupler.
Furthermore, the rack is provided with a mounting hole corresponding to the connecting shaft, the side wall of the mounting hole is provided with a threaded hole which is radially communicated, and a fastening screw is screwed into the threaded hole to fix the connecting shaft.
Further, the rotation source, the optical axis bracket and the second bearing block are mounted on the housing.
Furthermore, two transverse sides of the nut are provided with limit screws.
Further, a transformer and a reversing switch are arranged at the front end of the shell.
Compared with the prior art, the beneficial effects of the utility model are that: through the adjusting mode of the screw rod and the screw nut, the rotating radius of the sliding block can be adjusted at will, and the speed after speed reduction can reach the required speed from zero.
Drawings
Fig. 1 is a sectional view of the speed reducer of the present invention;
fig. 2 is a schematic diagram of a slide block of the speed reducer of the present invention;
fig. 3 is a schematic diagram of a connecting rod of the speed reducer of the present invention;
fig. 4 is a schematic view of a rack of the speed reducer of the present invention;
fig. 5 is a sectional view of the rack of the speed reducer of the present invention;
fig. 6 is a schematic view of a housing of the speed reducer of the present invention;
wherein: the device comprises a main shaft 1, an electric slip ring 2, a first transparent cover 3, a screw rod 4, a shell 5, a spacer 6, a first bearing seat 7, a sliding chute 8, a sliding block 9, a coupler 10, a speed reducing motor 11, a sliding block cover 12, a limiter 13, a connecting rod 14, a first bearing 15, a shaft baffle 16, a connecting shaft 17, a second bearing 18, a shaft 19, a flat pad 20, a gear 21, a one-way bearing 22, an optical axis 23, an optical axis support 24, a third bearing 25, a fastening screw 26, a second bearing seat 27, a nut 28, a through hole 29 with a platform, a limiting screw 30, a second transparent cover 31, a rack 32, a transformer 33, a reversing switch 34, a mounting hole 35, a threaded hole 36, a fourth bearing 37, a fifth bearing 38 and a box-type sliding block 39
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1 to 6, the present embodiment provides a speed reducer, including a slider 9, where the slider 9 is rectangular in shape, one end of the slider 9 is fixedly connected to a main shaft 1 of a rotation source through a screw, two fourth bearings 37 are installed on the main shaft 1, a spacer 6 is sleeved between the two fourth bearings 37, and the fourth bearings 37 are installed on a first bearing seat 7; a first transparent cover 3 is fixed on the outer side of the main shaft 1, a gap between the main shaft 1 far away from one side of the first transparent cover 3 and a first bearing seat 7 is sealed through a hole block, and an electric slip ring 2 is sleeved on the main shaft 1 on the outer side of the first transparent cover 3; the main shaft 1 rotates to drive the sliding block 9 to rotate;
a strip-shaped sliding groove 8 is processed in the sliding block 9, the sliding groove 8 is arranged along the radial direction of the rotation of the sliding block 9, a screw rod 4 is installed in the sliding groove 8, third bearings 25 are arranged at two ends of the sliding groove 8, two ends of the screw rod 4 in the length direction are polished rods and are installed on the third bearings 25, and the outer side of each third bearing 25 is fixedly sealed through a cover; one end of the screw rod 4 extends out of the sliding chute and is connected with an output shaft of a speed reducing motor 11 through a coupler 10, and the speed reducing motor 11 is electrically connected with the electric slip ring 2;
a connecting rod 14, wherein through holes 29 with platforms are processed at two ends of the connecting rod 14, and the axial line of each through hole 29 with a platform is parallel to the axial line of the main shaft 1; a first bearing 15 is arranged in one through hole 29 with a platform, a nut 28 is arranged in the first bearing 15, and the nut 28 is meshed with the screw rod 4; the screw rod 4 is driven to rotate through the speed reducing motor 11, so that the position of a nut 28 is adjusted, a second bearing 18 is installed in the other through hole 29 with the platform, and both the first bearing 15 and the second bearing 18 can use needle bearings;
the end of the first bearing 15 far away from the nut 28 is provided with a shaft stop 16, and one end surface of the second bearing 18 is also provided with the shaft stop 16;
two racks 32 which are arranged up and down, and box-type sliding blocks 39 are arranged at two ends of the racks 32 in the length direction; the two racks 32 are arranged on the two optical axes 23 through box-type sliding blocks 39, the tooth surfaces of the two racks 32 are opposite and are arranged in a staggered mode, and each rack 32 is meshed with the gear 21; one end of the rack 32 is connected with the second bearing 18 through the connecting shaft 17, and two ends of the optical axis 23 are fixedly arranged on the optical axis bracket 24;
two gears 21, each gear 21 is meshed with a rack 32 and rotates along with the transverse movement of the rack 32, the gears 21 are arranged on one-way bearings 22, the rotating directions of the two gears 21 are opposite, one is positive rotation, the other is negative rotation, and power is transmitted alternately; a shaft 19 is fixedly arranged in the one-way bearing 22, and the shaft 19 is driven to rotate through a gear 21;
the slide block 9 rotates to drive the connecting rod 14 to act, the connecting rod 14 drives the rack 32 to transversely reciprocate, so that the shaft 19 rotates, and the position of the screw nut 28 is adjusted through the speed reducing motor 11, so that the speed reducing effect of the speed reducer is adjusted.
Furthermore, there are two one-way bearings 22, and a flat pad 20 is sleeved on the shaft 19 between the two one-way bearings 22 and mounted on the second bearing seat 27 to separate the one-way bearings 22 and prevent friction.
Further, the rack 32 is provided with a mounting hole 35 corresponding to the connecting shaft 17, a screw hole 36 penetrating in the radial direction is provided in a side wall of the mounting hole 35, and the connecting shaft 17 is fixed by screwing the fastening screw 26 into the screw hole 36.
Further, the rotation source, the optical axis holder 24 and the second bearing housing 27 are mounted on the housing, and can be fixed by screws.
Furthermore, a slide block cover 12 is arranged on the slide block 9, a limiting stopper 13 is arranged on the slide block cover 12 on two sides of the screw rod 4, and limiting screws 30 are arranged on two transverse sides of the nut and used for limiting the moving distance of the screw rod 4; the slider 9 is provided with a slider cover 12 for fixing the gear motor 11 and for mounting a stopper 13 and wiring.
Further, a transformer 33 and a reversing switch 34 are provided at the front end of the housing 5 for controlling the gear motor 11.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (10)
1. A speed reducer is characterized in that: comprises a slide block which is fixedly connected with a main shaft of a rotation source; an electric slip ring is sleeved on the main shaft;
a sliding groove is processed in the sliding block, a screw rod is installed in the sliding groove, one end of the screw rod is connected with an output shaft of a speed reducing motor, and the speed reducing motor is electrically connected with an electric slip ring;
one end of the connecting rod is provided with a first bearing, a nut is installed in the first bearing, and the nut is meshed with the lead screw; the position of the nut is adjusted through a speed reducing motor, and a second bearing is arranged at the other end of the connecting rod;
the two ends of the rack are provided with box type sliding blocks, the rack is arranged on the optical axis through the box type sliding blocks, and one end of the rack is connected with the second bearing through a connecting shaft; the optical axis is arranged on the optical axis bracket;
and the gear is meshed with the rack and is arranged on a one-way bearing, and a shaft is arranged in the one-way bearing.
2. The speed reducer according to claim 1, wherein: and third bearings are arranged at two ends of the sliding groove, and two ends of the screw rod are arranged on the third bearings.
3. The speed reducer according to claim 1 or 2, wherein: the sliding block is provided with a sliding block cover, and the sliding block covers on two sides of the screw rod and is provided with a limiter.
4. The speed reducer according to claim 1, wherein: and 2 unidirectional bearings are arranged on the second bearing block in the same direction.
5. The speed reducer according to claim 1, wherein: the two racks are arranged in a vertically staggered mode, box-type sliding blocks are mounted at two ends of each rack, the racks are mounted on the optical axis through the box-type sliding blocks, tooth surfaces of the two racks are opposite, the number of the gears is two, and each gear is meshed with one rack.
6. The speed reducer according to claim 1, wherein: and the output shaft of the speed reducing motor is fixedly connected with the screw rod through a coupler.
7. The speed reducer according to claim 1, wherein: the rack is provided with a mounting hole corresponding to the connecting shaft, the side wall of the mounting hole is provided with a threaded hole which is radially communicated, and a fastening screw is screwed into the threaded hole to fix the connecting shaft.
8. The speed reducer according to claim 1, wherein: the rotation source, the optical axis bracket and the second bearing seat are arranged on the shell.
9. The speed reducer according to claim 1, wherein: and limiting screws are arranged on the two transverse sides of the nut.
10. The speed reducer of claim 8, wherein: and the front end of the shell is provided with a transformer and a reversing switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221679504.7U CN218063260U (en) | 2022-06-30 | 2022-06-30 | Speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221679504.7U CN218063260U (en) | 2022-06-30 | 2022-06-30 | Speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218063260U true CN218063260U (en) | 2022-12-16 |
Family
ID=84435894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221679504.7U Active CN218063260U (en) | 2022-06-30 | 2022-06-30 | Speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218063260U (en) |
-
2022
- 2022-06-30 CN CN202221679504.7U patent/CN218063260U/en active Active
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