CN211574171U - Speed reducer with adjustable speed ratio - Google Patents
Speed reducer with adjustable speed ratio Download PDFInfo
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- CN211574171U CN211574171U CN201922224865.7U CN201922224865U CN211574171U CN 211574171 U CN211574171 U CN 211574171U CN 201922224865 U CN201922224865 U CN 201922224865U CN 211574171 U CN211574171 U CN 211574171U
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Abstract
The utility model discloses an adjustable speed ratio speed reducer, including the base with through the top cap of bolt fixed connection on base top outer wall, one side of base top outer wall is rotated through the bearing and is connected with the input shaft, and on the side outer wall of input shaft respectively the key connection have first driving gear and second driving gear, the center department of base top outer wall is rotated through the bearing and is connected with the speed governing axle, and rotate through the bearing on the side outer wall of speed governing axle respectively and be connected with first reduction gear and second reduction gear, key connection has clutch gear on the side outer wall of speed governing axle, and clutch gear is located between first reduction gear and the second reduction gear. When the output torque of the motor is below the threshold value, the output gear can drive the output shaft to rotate, and the output shaft drives other equipment to operate; when the output torque of the motor is above the threshold value, the overrunning clutch is operated, so that the output gear idles, and the motor is prevented from being damaged.
Description
Technical Field
The utility model relates to a reduction gear technical field especially relates to an adjustable speed ratio speed reducer.
Background
The speed reducer is an independent component consisting of gear transmission, worm transmission and gear-worm transmission which are enclosed in a rigid shell, is commonly used as a speed reduction transmission device between a prime mover and a working machine, plays a role in matching rotating speed and transmitting torque between the prime mover and the working machine or an actuating mechanism, and is widely applied to modern machinery.
However, the speed reducer of the present speed reducer with adjustable speed ratio generally has no protection device, and when an operator is unfamiliar with the device and uses an improper speed reduction ratio, the output torque of the motor is too large, so that the motor is damaged. Therefore, it is desirable to design an adjustable speed reducer to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an adjustable speed ratio reducer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an adjustable speed ratio reducer comprises a base and a top cover fixedly connected to the outer wall of the top of the base through bolts, wherein one side of the outer wall of the top of the base is rotatably connected with an input shaft through a bearing, and the outer wall of the side surface of the input shaft is respectively connected with a first driving gear and a second driving gear by keys, the center of the outer wall of the top of the base is rotationally connected with a speed regulating shaft by a bearing, and the outer wall of the side surface of the speed regulating shaft is respectively and rotatably connected with a first reduction gear and a second reduction gear through bearings, the outer wall of the side surface of the speed regulating shaft is in key connection with a clutch gear, and the clutch gear is positioned between the first reduction gear and the second reduction gear, one side of the outer wall of the top of the base is rotationally connected with an output shaft through a bearing, and the outer wall of the side surface of the output shaft is in keyed connection with an overrunning clutch, and the outer wall of the side surface of the overrunning clutch is in keyed connection with an output gear.
Furthermore, the first driving gear is meshed with the first reduction gear, the second driving gear is meshed with the second reduction gear, and the clutch gear is meshed with the output gear.
Furthermore, the clamping grooves which are distributed in an annular structure at equal intervals are formed in the outer wall of one side, close to the clutch gear, of the first reduction gear and the outer wall of one side, close to the clutch gear, of the second reduction gear, clamping blocks which are distributed in an annular structure at equal intervals are welded on the outer walls of the two sides, close to the first reduction gear and the second reduction gear, of the clutch gear, and the clamping blocks are clamped inside the clamping grooves.
Furthermore, the welding has the buckler that the equidistance is horizontal structure and distributes on the top outer wall of top cap, it has the thermovent to open on one side outer wall of buckler, and there is the dust screen inside the thermovent through the screw connection.
Furthermore, the outer wall of the bottom of the base is connected with a mounting plate through bolts, and mounting holes distributed in a rectangular structure at equal intervals are formed in the outer wall of the top of the mounting plate.
Furthermore, a slot is formed in the outer wall of the bottom of the base, a connecting block is welded at one end of the mounting plate, and the connecting block is connected to the inside of the slot through a bolt.
Furthermore, one end of the speed regulating shaft is rotatably connected with a handle through a bearing, and anti-skid grooves distributed in an annular structure at equal intervals are formed in the outer wall of the side face of the handle.
The utility model has the advantages that:
1. through the arranged overrunning clutch, when the output torque of the motor is below a threshold value, the output gear can drive the output shaft to rotate, and the output shaft drives other equipment to operate; when the output torque of the motor is above the threshold value, the overrunning clutch is operated, so that the output gear idles, and the motor is prevented from being damaged.
2. Through the mounting panel that sets up, the mounting panel passes through the bolt and installs on the base, and the motor passes through the bolt and installs on the mounting panel for reduction gear and motor relatively fixed prevents that motor and reduction gear from receiving vibrations or causing relative motion because of self vibrations in the course of the work, makes the output shaft of motor or the input shaft of speed reducer damage.
3. Through thermovent and the buckler that sets up, because the top cap of motor is the slope structure, the thermovent opens in the lower one side of buckler, can prevent that moisture from getting into the inside of speed reducer through the thermovent, causes the corrosion of internals to the thermovent can be for the inside heat dissipation of speed reducer, prevents that the unable effluvium of heat that the motion produced from causing the damage of speed reducer internals.
Drawings
Fig. 1 is a schematic structural diagram of an adjustable speed reducer according to the present invention;
fig. 2 is a schematic view of an internal structure of an adjustable speed reducer according to the present invention;
fig. 3 is a schematic structural view of a speed adjusting shaft of the speed reducer with an adjustable speed ratio according to the present invention;
fig. 4 is the utility model provides an output shaft schematic diagram of adjustable speed ratio speed reducer.
In the figure: the device comprises a base 1, a top cover 2, a heat dissipation port 3, a waterproof cover 4, a mounting plate 5, a mounting hole 6, an input shaft 7, a first driving gear 8, a second driving gear 9, a speed regulating shaft 10, a handle 11, an anti-skidding groove 12, an output shaft 13, a first reduction gear 14, a second reduction gear 15, a clutch gear 16, a clamping groove 17, a clamping block 18, an output gear 19, an overrunning clutch 20, a slot 21 and a connecting block 22.
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 work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, an adjustable speed ratio reducer comprises a base 1 and a top cover 2 fixedly connected to the top outer wall of the base 1 through bolts, one side of the top outer wall of the base 1 is rotatably connected with an input shaft 7 through a bearing, the side outer wall of the input shaft 7 is respectively in key connection with a first driving gear 8 and a second driving gear 9, the first driving gear 8 is smaller than the second driving gear 9, the center of the top outer wall of the base 1 is rotatably connected with a speed regulating shaft 10 through a bearing, the side outer wall of the speed regulating shaft 10 is respectively in key connection with a first reduction gear 14 and a second reduction gear 15 through a bearing, the first reduction gear 14 is larger than the second reduction gear 15, the side outer wall of the speed regulating shaft 10 is in key connection with a clutch gear 16 which can move along with the speed regulating shaft 10, and the clutch gear 16 is positioned between the first reduction gear 14 and, one side of the outer wall of the top of the base 1 is rotatably connected with an output shaft 13 through a bearing, the outer wall of the side face of the output shaft 13 is in key connection with an overrunning clutch 20, and the outer wall of the side face of the overrunning clutch 20 is in key connection with an output gear 19.
Further, the first driving gear 8 is engaged with the first reduction gear 14, the second driving gear 9 is engaged with the second reduction gear 15, and the clutch gear 16 is engaged with the output gear 19, so as to form two pairs of kinematic pairs with different reduction ratios.
Furthermore, clamping grooves 17 which are distributed in an annular structure at equal intervals are formed in the outer walls of one side, close to the clutch gear 16, of the first reduction gear 14 and the second reduction gear 15, clamping blocks 18 which are distributed in an annular structure at equal intervals are welded on the outer walls of two sides, close to the first reduction gear 14 and the second reduction gear 15, of the clutch gear 16, and the clamping blocks 18 are clamped inside the clamping grooves 17, so that the clutch gear 16 can rotate along with the first reduction gear 14 or the second reduction gear 15 through the clamping blocks 18.
Further, the welding has the buckler 4 that the equidistance is the horizontal structure and distributes on the top outer wall of top cap 2, and it has thermovent 3 to open on one side outer wall of buckler 4, and thermovent 3 opens in the lower one side of buckler 4, can prevent that moisture from getting into the inside of speed reducer through thermovent 3, and there is the dust screen in the inside of thermovent 3 through bolted connection, prevents that the dust from getting into the inside of speed reducer.
Further, there is mounting panel 5 on the bottom outer wall of base 1 through bolted connection for reduction gear and motor are relatively fixed, prevent that motor and reduction gear from receiving vibrations or causing relative motion because of self vibrations in the course of the work, and open on the top outer wall of mounting panel 5 and have the equidistance to be the mounting hole 6 that the rectangle structure distributes.
Furthermore, the bottom outer wall of the base 1 is provided with a slot 21, one end of the mounting plate 5 is welded with a connecting block 22, and the connecting block 22 is connected inside the slot 21 through a bolt, so that the mounting plate 5 and the base 1 are further fixed.
Furthermore, one end of the speed regulating shaft 10 is rotatably connected with a handle 11 through a bearing, so that an operator can move the speed regulating shaft 10 conveniently, and the outer wall of the side surface of the handle 11 is provided with anti-skid grooves 12 which are distributed in an annular structure at equal intervals.
The working principle is as follows: when the electric motor is used, an operator firstly fixes and installs the electric motor on the outer wall of the top of the mounting plate 5 through the bolt and the mounting hole 6, then fixes and connects the output shaft of the electric motor with the input shaft 7 of the speed reducer through the coupler, and then connects the output shaft 13 of the speed reducer with other equipment; when the speed regulating device works, an operator firstly determines the transmission ratio according to the type of the motor and the types of other equipment, if the required transmission ratio is large, the operator can push the speed regulating shaft 10 through the handle 11, the speed regulating shaft 10 drives the clutch gear 16 to move, a clamping block of the clutch gear 16 is clamped inside the second reduction gear 15, at the moment, an operator turns on the motor, the motor drives the input shaft 7 to rotate, the input shaft 7 drives the first driving gear 8 and the second driving gear 9 to rotate, the first driving gear 8 drives the first reduction gear 14 to rotate, the second driving gear 9 drives the second reduction gear 15 to rotate, the second reduction gear 15 drives the clutch gear 16 to rotate through the clamping block 18 and the clamping groove 17, the clutch gear 16 drives the output gear 19 to rotate, the output gear 19 drives the output shaft 13 to rotate, and the output shaft 13 transmits torque to other equipment; if the required transmission is small, an operator can pull the speed regulating shaft 10 through the handle 11, the speed regulating shaft 10 drives the clutch gear 16 to move, so that a clamping block of the clutch gear 16 is clamped inside the first reduction gear 14, at the moment, the operator turns on the motor, the motor drives the input shaft 7 to rotate, the input shaft 7 drives the first driving gear 8 and the second driving gear 9 to rotate, the first driving gear 8 drives the first reduction gear 14 to rotate, the second driving gear 9 drives the second reduction gear 15 to rotate, the first reduction gear 14 drives the clutch gear 16 to rotate through the clamping block 18 and the clamping groove 17, the clutch gear 16 drives the output gear 19 to rotate, the output gear 19 drives the output shaft 13 to rotate, and the output shaft 13 transmits the torque to other equipment; when the output torque of the motor is below the threshold value, the output gear 19 can drive the output shaft 13 to rotate, and the output shaft 13 drives other equipment to operate; when the output torque of the motor is equal to or higher than the threshold value, the overrunning clutch 20 is operated to idle the output gear 19, thereby preventing the motor from being damaged.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A speed reducer with an adjustable speed ratio comprises a base (1) and a top cover (2) fixedly connected to the outer wall of the top of the base (1) through bolts, and is characterized in that one side of the outer wall of the top of the base (1) is rotatably connected with an input shaft (7) through a bearing, the outer wall of the side face of the input shaft (7) is respectively in key connection with a first driving gear (8) and a second driving gear (9), the center of the outer wall of the top of the base (1) is rotatably connected with a speed adjusting shaft (10) through a bearing, the outer wall of the side face of the speed adjusting shaft (10) is respectively in key connection with a first reduction gear (14) and a second reduction gear (15) through a bearing, the outer wall of the side face of the speed adjusting shaft (10) is in key connection with a clutch gear (16), the clutch gear (16) is located between the first reduction gear (14) and the second reduction gear (15), one side of the outer, the outer wall of the side face of the output shaft (13) is in keyed connection with an overrunning clutch (20), and the outer wall of the side face of the overrunning clutch (20) is in keyed connection with an output gear (19).
2. An adjustable speed reducer according to claim 1 in which the first drive gear (8) is in mesh with a first reduction gear (14) and the second drive gear (9) is in mesh with a second reduction gear (15), the clutch gear (16) being in mesh with the output gear (19).
3. The speed reducer according to claim 1, wherein clamping grooves (17) which are distributed in an annular structure at equal intervals are formed in the outer walls of the first reduction gear (14) and the second reduction gear (15) close to one side of the clutch gear (16), clamping blocks (18) which are distributed in an annular structure at equal intervals are welded on the outer walls of the two sides of the clutch gear (16) close to the first reduction gear (14) and the second reduction gear (15), and the clamping blocks (18) are clamped inside the clamping grooves (17).
4. The speed reducer according to claim 1, wherein the top outer wall of the top cover (2) is welded with waterproof covers (4) which are distributed in a horizontal structure at equal intervals, the outer wall of one side of each waterproof cover (4) is provided with a heat dissipation opening (3), and the interior of each heat dissipation opening (3) is connected with a dustproof net through a screw.
5. The speed reducer with the adjustable speed ratio according to claim 1, wherein the bottom outer wall of the base (1) is connected with a mounting plate (5) through a bolt, and mounting holes (6) which are distributed in a rectangular structure at equal intervals are formed in the top outer wall of the mounting plate (5).
6. The speed reducer according to claim 5, wherein the bottom outer wall of the base (1) is provided with a slot (21), one end of the mounting plate (5) is welded with a connecting block (22), and the connecting block (22) is connected to the inside of the slot (21) through a bolt.
7. The speed reducer with the adjustable speed ratio according to claim 5, wherein one end of the speed regulating shaft (10) is rotatably connected with a handle (11) through a bearing, and anti-skid grooves (12) which are distributed in an annular structure at equal intervals are formed in the outer wall of the side face of the handle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224865.7U CN211574171U (en) | 2019-12-12 | 2019-12-12 | Speed reducer with adjustable speed ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922224865.7U CN211574171U (en) | 2019-12-12 | 2019-12-12 | Speed reducer with adjustable speed ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574171U true CN211574171U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922224865.7U Active CN211574171U (en) | 2019-12-12 | 2019-12-12 | Speed reducer with adjustable speed ratio |
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| Country | Link |
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| CN (1) | CN211574171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183503A (en) * | 2021-12-15 | 2022-03-15 | 浙江恒齿传动股份有限公司 | Four-shunt speed reducer for crusher |
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2019
- 2019-12-12 CN CN201922224865.7U patent/CN211574171U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183503A (en) * | 2021-12-15 | 2022-03-15 | 浙江恒齿传动股份有限公司 | Four-shunt speed reducer for crusher |
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