CN212985953U

CN212985953U - Gear transmission speed reducer

Info

Publication number: CN212985953U
Application number: CN202021174708.6U
Authority: CN
Inventors: 梁雁昆; 袁玉鹏; 杨林杰; 张旭东; 孔阳阳
Original assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Current assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-04-16
Anticipated expiration: 2030-06-23

Abstract

The utility model relates to a gear transmission speed reducer, through rotating the second driving handle, the driving fixture block slides vertically and vertically, realize the fixing to planet carrier or ring gear, thereby transmit power to first jackshaft or planet carrier, through rotating first lead screw, the duplicate gear on the first output shaft can be engaged with two gears of first jackshaft selectively, output different drive ratios, the first gear on the planet carrier is decelerated to the second output shaft through two-stage gear, be connected with toper friction shaft coupling between the second output shaft and the first output shaft, when driving the second handle, a worm wheel is fixedly connected on the upper end of the driving handle, be transmitted to the lead screw shaft through worm and gear belt transmission, the lead screw shaft drives the third shift fork translation, realize the opening and closing to toper friction shaft coupling, can produce the linkage, this device can output three kinds of different drive ratios, the operation is simple, high efficiency, strong practicability and suitability for popularization and use.

Description

Gear transmission speed reducer

Technical Field

The utility model belongs to the technical field of decelerator, especially, relate to a gear drive decelerator.

Background

The gear transmission speed reducer uses gear transmission of all levels to achieve the purpose of speed reduction, the gear transmission speed reducer is composed of gear pairs of all levels, for example, a pinion drives a gearwheel to achieve a certain speed reduction purpose, then a multi-level structure is adopted to greatly reduce the rotating speed, the gear transmission speed reducer is generally used for transmission equipment with low rotating speed and large torque, the power of a motor, an internal combustion engine or other high-speed running is reduced by a gear with small number of teeth on an input shaft of the gear speed reducer and large number of teeth on an engaged output shaft, the common speed reducer can also achieve ideal speed reduction effect by a plurality of pairs of gears with the same principle, the ratio of the number of teeth of the large gear and the small gear is the transmission ratio, the gear transmission speed reducer is a power transmission mechanism, the speed converter of the gear is used for reducing the number of revolutions of the motor to the required number of revolutions, the gear speed reducer has the advantages that a mechanism with larger torque is obtained, the output torque is improved while the speed is reduced, the gear speed reducer is various in types, different in types and different in purposes. The speed reducers are various in types, can be divided into gear speed reducers, worm speed reducers and planetary gear speed reducers according to transmission types, can be divided into single-stage speed reducers and multi-stage speed reducers according to different transmission stages, can be divided into cylindrical gear speed reducers, conical gear speed reducers and conical-cylindrical gear speed reducers according to gear shapes, and can be divided into expanded type speed reducers, split type speed reducers and coaxial type speed reducers according to transmission arrangement forms.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a gear drive decelerator has solved the problem that follow-up jointing equipment needs different rotational speeds and moment of torsion.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a gear transmission speed reducer comprises an outer shell and is characterized in that the lower end of the left side inside the outer shell is longitudinally connected with an input shaft in a rotating mode, the end portion of the input shaft is fixedly connected with a sun gear, the input shaft is coaxially connected with a planet carrier in a rotating mode, the planet carrier is connected with three groups of planet gears meshed with the sun gear in a rotating mode, the three groups of planet gears are externally meshed with an inner gear ring rotatably connected to the bottom of the outer shell, the end portion of the planet carrier is fixedly connected with a first gear, the outer side wall of the inner gear ring is coaxially and fixedly connected with a first intermediate shaft, the first intermediate shaft is fixedly connected with a second gear and a third gear, the outer shell is rotatably connected with a first output shaft parallel to the first intermediate shaft, the first output shaft is connected with a double-coupling gear in a splined mode, and the upper end of the double-coupling gear is, the adjusting structure satisfies that the drive duplicate gear slides along first output shaft axial direction to make the duplicate gear mesh with second gear and third gear respectively in the position department that the axial is different, first gear connection one install the gear reduction unit on the shell body, gear reduction unit's second output shaft and first output shaft between be connected a connecting axle device, satisfy the connecting axle device and realize the power transmission or the separation between second output shaft and the first output shaft, shell body upper end connect a linkage adjusting device, satisfy the linkage adjusting device and can restrict the rotation of ring gear or the rotation of planet carrier respectively, can adjust the connecting axle device again and carry out work.

Preferably, the adjusting structure include fixed connection at duplicate gear both ends and with the coaxial rotation sleeve of being connected of first output shaft, the sleeve lateral wall rotate and connect first shift fork and second shift fork, first shift fork and second shift fork lateral wall with the horizontal sliding fit in shell body upper end, first shift fork and second shift fork upper end screwed connection a first lead screw that transversely sets up, the first actuating handle of first lead screw tip fixed connection.

Preferably, the linkage adjusting device including connecting the vertical spout in the shell body upper end, the vertical rotation of vertical spout connect a second lead screw, second lead screw threaded connection slider, the vertical sliding connection of slider in vertical spout, slider one end fixed connection fixture block, fixture block upper end fixed connection vertical cylinder, the lower extreme is opened there is rectangular groove, ring gear upper end fixed connection L type fixed block, fixed block upper end open and to have spacing hole, cylinder and spacing hole cooperation restriction ring gear's rotation, rectangular groove and planet carrier cooperation restriction planet carrier's rotation. Preferably, the lower end of the worm wheel is fixedly connected with a second driving handle, a worm meshed with the worm wheel is arranged on a screw rod shaft in a radial belt transmission mode, one end of the screw rod shaft is in threaded connection with a third shifting fork, and the side wall of the third shifting fork is in sliding fit with the upper end of the outer shell through a sliding groove. And the third shifting fork is rotationally connected with a shaft connecting device at one end of the second output shaft.

Preferably, the shaft connecting device comprises a conical rubber wedge fixedly connected to one end of the first output shaft and a conical rubber sleeve connected to the second output shaft through a spline, the conical rubber wedge is matched with the conical rubber sleeve, and the conical rubber sleeve is connected with the linkage adjusting device.

Preferably, the gear reduction unit comprises a second intermediate shaft transversely and rotatably connected in the outer shell, the second intermediate shaft is coaxially provided with a fourth gear meshed with the first gear, the fourth gear is coaxially connected with a fifth gear, the fifth gear is meshed with a sixth gear arranged on the second output shaft, and the radius of the fourth gear is larger than that of the fifth gear.

The utility model has the advantages that: when the utility model is used, the second driving handle is rotated, the driving clamping block vertically slides up and down, the fixing of the planet carrier or the inner gear ring is realized, thereby the power is transmitted to the first intermediate shaft or the planet carrier, the duplicate gear on the first output shaft can be selectively meshed with the two gears of the first intermediate shaft by rotating the first lead screw, different transmission ratios are output, the first gear on the planet carrier is decelerated to the second output shaft by two-stage gears, a conical friction coupling is connected between the second output shaft and the first output shaft, when the second handle is driven, the upper end of the driving handle is fixedly connected with a worm gear, the power is transmitted to the lead screw shaft by worm gear and belt transmission, the lead screw shaft drives the third shifting fork to translate, the opening and closing of the conical friction coupling are realized, the linkage can be generated, the device can output three different transmission ratios, the operation is simple, the efficiency is high, the practicability, is suitable for popularization and application.

Drawings

Fig. 1 is a perspective view of the first three-dimensional structure of the present invention.

Fig. 2 is a perspective view of the second stereoscopic structural diagram of the present invention.

Fig. 3 is a perspective view of the present invention with the right side portion of the outer housing removed.

Fig. 4 is a perspective view of the present invention with the right part of the outer casing removed.

Fig. 5 is a perspective view of the present invention with the outer casing three-dimensional structure removed.

Fig. 6 is a perspective view two of the present invention with the outer casing three-dimensional structure removed.

Fig. 7 is an enlarged view of the locking device of the present invention.

Fig. 8 is a perspective view of a second output shaft and its connection portion according to the present invention.

Fig. 9 is a perspective view of a second output shaft and its connection portion according to the present invention.

In the figure, 1 outer shell; 2 a first input shaft; 3 a sun gear; 4 a planet carrier; 5 a first gear; 6, an inner gear ring; 7 a first intermediate shaft; 8 a second gear; 9 a third gear; 10 a first output shaft; 11 duplicate gears; 12 a sleeve; 13 a first fork; 14 a second fork; 15 a first lead screw; 16 a first drive handle; 17 a second lead screw; 18 a slide block; 19 a fixture block; 20 limiting holes; 21 a second drive handle; 22 a worm gear; 23 a worm; 24 a second output shaft; 25 screw shaft; 26 conical rubber wedges; 27 conical rubber sleeve; 28 a second intermediate shaft; 29 third fork.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Embodiment one, combine fig. 1-9, a gear transmission reduction gear, characterized by, include outer casing 1, outer casing 1 is the cuboid cavity structure, outer casing 1 inside left side lower extreme vertically rotate connect an input shaft, input shaft end fixedly connected with a sun gear 3, sun gear 3 be the shaft gear, sun gear 3 outside connect a planetary gear train, the planet wheel is three, fixed connection is at the planet shaft end, the radial equipartition of planet wheel is at sun gear 3 periphery, be convenient for sun gear 3 evenly transmit the moment of torsion, planet carrier 4 of planetary gear train rotate connect on the input shaft, the end fixed connection of three planet shafts has a disc, disc center fixed connection has a long section of thick bamboo, long section of thick bamboo and disc center have seted up the round hole, the input shaft pass from the round hole of seting up, planet carrier 4 end fixed connection first gear 5, the first gear 5 is a shaft gear and is arranged at the end part of the long cylinder, the inner gear ring 6 of the planetary gear train is rotationally connected on the outer shell 1, the outer side of the inner gear ring 6 is rotationally connected with a bearing, the bearing is in interference fit with the circular structure of the outer shell 1, the outer side wall of the inner gear ring 6 is in a flat cone shape, the center of the outer side wall of the inner gear ring 6 is fixedly connected with a first intermediate shaft 7, the conical center of the outer gear ring extends out of the first intermediate shaft 7, the input shaft is used for transmitting torque to the first intermediate shaft 7 through the planetary gear train in a speed reduction way, the first intermediate shaft 7 is fixedly connected with a second gear 8 and a third gear 9, the second gear 8 and the third gear 9 are connected on the first intermediate shaft 7 through keys, the number of teeth of the second gear 8 is different from that of the first gear 5, a first output shaft 10 is radially arranged on the second gear 8 and the third gear 9, and, the output shaft is connected with a duplicate gear 11 through a spline, an adjusting structure is arranged at the upper end of the duplicate gear 11, the adjusting structure satisfies that the duplicate gear 11 slides along the axial direction of the output shaft, so that the duplicate gear 11 is engaged with a matched second gear 8 or a matched third gear 9, when the duplicate gear 11 slides towards the outer end of the outer shell 1, a pinion of the duplicate gear 11 is engaged with the first gear 5, when the outer shell 1 of the duplicate gear 11 slides inside, a large gear of the duplicate gear 11 is engaged with the third gear 9, two transmission ratios and two torques are output, the first gear 5 is radially connected with a gear reducer, a connecting shaft device is connected between a second output shaft 24 and a first output shaft 10 of the gear reducer, the first output shaft 10 and the second output shaft 24 are coaxially arranged, a linkage adjusting device is arranged at the upper end of the planetary gear system, the linkage adjusting device can respectively limit the rotation of the outer gear ring or the revolution of the planet carrier 4, and the separation and combination of the connecting shaft device can be adjusted, when the linkage adjusting device limits the rotation of the outer gear ring, the connecting shaft device is closed, power is transmitted to the first gear 5 of the planet carrier 4 from the input shaft, the first gear 5 is transmitted to the second output shaft 24 through the gear reduction device, the second output shaft 24 is transmitted to the first output shaft 10 through the connecting shaft device, when the linkage adjusting device limits the rotation of the planet carrier 4, the power is transmitted to the inner gear ring 6 from the input shaft, the first intermediate shaft 7 fixedly connected with the inner gear ring 6 is transmitted to the first output shaft 10 through the meshing of the duplicate gear 11, and at the moment, the connecting shaft device between the first output shaft 10 and the second output shaft 24 is disconnected.

In the second embodiment, on the basis of the first embodiment, with reference to fig. 1-9, two ends of the dual gear 11 are respectively and fixedly connected with a sleeve 12 coaxially and rotatably connected with the first output shaft 10, the middle part of the dual gear 11 is fixedly connected with a cylinder, the dual gear 11 is connected with the first output shaft 10 through a spline, the outer side wall of the sleeve 12 is connected with a first shifting fork 13 and a second shifting fork 14 in a rolling manner, the upper ends of the first shifting fork 13 and the second shifting fork 14 are cuboid-shaped, the lower ends of the first shifting fork 13 and the second shifting fork 14 are circular-hole-shaped, the outer side walls of the sleeves 12 at the two ends are respectively provided with a bearing, the outer ring of the bearing is in interference fit with the circular holes at the lower ends of the first shifting fork 13 and the second shifting fork 14, the side walls of the first shifting fork 13 and the second shifting fork 14 are in sliding connection with the side wall of the outer shell 1, the upper ends of the first shifting fork 13 and the second shifting fork 14 are in threaded connection with a first lead screw 15, the end part of the first lead screw 15 is fixedly connected with a first driving handle 16, and the first lead screw 15 drives the first shifting fork 13 and the second shifting fork 14 to slide left and right along the axial direction of a first output shaft 10 by driving the first handle, so that a duplicate gear 11 is driven to slide left and right on the axial direction of the output shaft, and the duplicate gear 11 is meshed with a second gear 8 or a third gear 9 respectively.

In the third embodiment, on the basis of the first embodiment, with reference to fig. 1-9, the outer casing 1 at the upper end of the planet carrier 4 is provided with a rectangular chute, the chute is vertically and spirally connected with a second lead screw 17, the second lead screw 17 is spirally connected with a slide block 18, the slide block 18 is in a rectangular shape and is in clearance fit with the chute, the slide block 18 is slidably connected with the chute, one end of the slide block 18 is fixedly connected with a fixture block 19, the upper end of the fixture block 19 is fixedly connected with a vertical cylinder and is matched with a limit hole 20 on an L-shaped fixture block fixedly connected with the upper end of the inner gear ring 6, a rectangular groove at the lower end of the fixture block is matched with the planet carrier 4, when the second lead screw 17 is rotated to enable the slide block 18 to move upwards, the cylinder at the upper end of the fixture block 19 enters the limit hole 20 on the L-shaped fixture block fixedly connected with the upper, the rotation of the inner gear ring 6 is limited, when the second screw rod 17 is rotated to enable the sliding block 18 to move downwards, the rectangular groove at the lower end of the clamping block 19 is clamped into the planet shaft of the planet carrier 4, and the rotation of the planet carrier 4 is limited, so that two transmission directions of the power of the input shaft are realized.

In the fourth embodiment, on the basis of the third embodiment, with reference to fig. 1 to 9, the upper end of the second lead screw 17 is fixedly connected with a worm wheel 22, the worm wheel 22 and the second lead screw 17 are coaxially arranged, the lower end of the worm wheel 22 is fixedly connected with a second driving handle 21, a worm 23 engaged with the worm wheel 22 is radially arranged on a lead screw shaft 25 in a belt transmission manner, the worm 23 is parallel to the long side of the outer housing 1, one end of the worm 23 is arranged on a belt wheel, one end of the worm 23 radially arranged on the lead screw shaft 25 is also arranged on a belt wheel, the worm 23 transmits power to the lead screw shaft 25 through the belt transmission manner, one end of the lead screw shaft 25 is spirally connected with a third shift fork 29, the upper end of the third shift fork 29 is rectangular and the lower end thereof is circular hole-shaped, the side wall of the third shift fork 29 is in sliding fit with the upper end of the outer housing 1, the rectangular upper end of the, the third shifting fork 29 is rotatably connected to a shaft connecting device at one end of the second output shaft 24, the outer side wall of the shaft connecting device on the second output shaft 24 is connected with a bearing, the outer ring of the bearing is in interference fit with a round hole at the lower end of the third shifting fork 29, the second driving handle 21 is rotated to drive the fixture block 19 to move up and down, the planet carrier 4 or the inner gear ring 6 which needs to be fixed is clamped tightly, and the shaft connecting device can be driven to open and close through the worm wheel 22, the worm 23, the belt transmission, the screw rod shaft 25 and the third shifting fork 29, so that the linkage effect is achieved.

In the fifth embodiment, on the basis of the fourth embodiment, with reference to fig. 1 to 9, one end of the first output shaft 10 is fixedly connected with a conical rubber wedge, and one end of the second output shaft 24 is in spline connection with a conical rubber sleeve. Conical toper rubber wedge lateral wall and conical rubber sleeve inside wall can closely cooperate, transmit the power on the second output shaft 24 for first output shaft 10 through frictional force, conical rubber sleeve and 24 spline sliding connection of second output shaft, third shift fork 29 can drive conical rubber sleeve along the axial horizontal slip, realize opening and shutting of shaft joint.

Sixth embodiment, on the basis of the first embodiment, with reference to fig. 1 to 9, the first gear 5 is radially disposed with a second intermediate shaft 28, the intermediate shaft is radially disposed with the second output shaft 24, the carrier 4 is transmitted to the second output shaft 24 through two-stage gear reduction, the first gear 5 at the end of the carrier 4 is meshed with a gear at the right end of the second intermediate shaft 28, so as to form a one-stage reduction, and a gear at the left end of the second intermediate shaft 28 is meshed with a gear on the second output shaft 24, so as to form a two-stage reduction.

When the utility model is used, the second driving handle 21 is rotated to drive the clamping block 19 to vertically slide up and down to fix the planet carrier 4 or the inner gear ring 6, thereby transmitting power to the first intermediate shaft 7 or the planet carrier 4, the duplicate gear 11 on the first output shaft 10 can be selectively meshed with the two gears of the first intermediate shaft 7 by rotating the first lead screw 15 to output different transmission ratios, the first gear 5 on the planet carrier 4 is decelerated to the second output shaft 24 by two-stage gears, a conical friction coupling is connected between the second output shaft 24 and the first output shaft 10, when the second handle is driven, the upper end of the driving handle is fixedly connected with a worm wheel 22, the second gear 22 is transmitted to the lead screw shaft 25 by worm wheel 22 and worm 23, belt transmission is carried out, the lead screw shaft 25 drives the third shifting fork 29 to translate, the conical friction coupling is opened and closed, and linkage can be generated, the device can output three different transmission ratios, is simple to operate, high in efficiency and strong in practicability, and is suitable for popularization and use.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear transmission speed reducer comprises an outer shell (1) and is characterized in that the lower end of the left side inside the outer shell (1) is longitudinally connected with an input shaft (2) in a rotating mode, the end portion of the input shaft (2) is fixedly connected with a sun gear (3), the input shaft (2) is coaxially connected with a planet carrier (4) in a rotating mode, the planet carrier (4) is connected with three sets of planet gears (30) meshed with the sun gear in a rotating mode, the three sets of planet gears (30) are externally meshed with one inner gear ring (6) rotatably connected to the bottom of the outer shell (1), the end portion of the planet carrier (4) is fixedly connected with a first gear (5), the outer side wall of the inner gear ring (6) is coaxially and fixedly connected with a first intermediate shaft (7), and the first intermediate shaft (7) is fixedly connected with a second gear (8) and a third gear (9), the outer shell (1) is connected with a first output shaft (10) which is parallel to the first intermediate shaft (7) in a rotating mode, the first output shaft (10) is connected with a duplicate gear (11) in a spline mode, the upper end of the duplicate gear (11) is connected with an adjusting structure, the adjusting structure meets the requirement that the duplicate gear (11) is driven to slide along the axial direction of the first output shaft (10), so that the duplicate gear (11) is meshed with the second gear (8) and the third gear (9) at different axial positions respectively, the first gear (5) is connected with a gear speed reducing device which is installed on the outer shell (1), a connecting shaft device is connected between the second output shaft (24) of the gear speed reducing device and the first output shaft (10), and the connecting shaft device meets the requirement that the power transmission or separation between the second output shaft (24) and the first output shaft (10) is realized, the upper end of the outer shell (1) is connected with a linkage adjusting device, the linkage adjusting device can respectively limit the rotation of the inner gear ring (6) or the rotation of the planet carrier (4), and the connecting shaft device can be adjusted to work.

2. A gear transmission speed reducer according to claim 1, wherein the adjusting structure comprises a sleeve fixedly connected to two ends of the dual gear and coaxially and rotatably connected to the first output shaft, the outer side wall of the sleeve (12) is rotatably connected to a first shifting fork (13) and a second shifting fork (14), the side walls of the first shifting fork (13) and the second shifting fork (14) are transversely and slidably matched with the upper end of the outer shell (1), the upper ends of the first shifting fork (13) and the second shifting fork (14) are spirally connected to a transversely arranged first lead screw (15), and the end of the first lead screw (15) is fixedly connected to a first driving handle (16).

3. The gear reduction unit of claim 1, wherein the linkage adjustment means comprises a vertical slide slot connected to an upper end of the outer housing, the vertical sliding groove is vertically and rotatably connected with a second screw rod (17), the second screw rod (17) is in threaded connection with a sliding block (18), the sliding block (18) is vertically and slidably connected in the vertical sliding groove, one end of the sliding block (18) is fixedly connected with a clamping block (19), the upper end of the clamping block (19) is fixedly connected with a vertical cylinder, the lower end is provided with a rectangular groove, the upper end of the inner gear ring is fixedly connected with an L-shaped fixed block, the upper end of the fixed block is provided with a limit hole (20), the cylinder is matched with the limit hole (20) to limit the rotation of the inner gear ring (6), the rectangular groove is matched with the planet carrier (4) to limit the rotation of the planet carrier (4).

4. A gear transmission speed reducer according to claim 3, wherein a worm wheel (22) is fixedly connected to the upper end of the second lead screw (17), the lower end of the worm wheel (22) is fixedly connected to the second driving handle (21), the worm wheel (22) is engaged with a worm (23) rotatably connected to the outer housing (1), the outer housing (1) is transversely and rotatably connected to a lead screw shaft (25), the lead screw shaft (25) and the worm (23) are in transmission connection through a belt, one end of the lead screw shaft (25) is spirally connected to a third shifting fork (29) which is transversely and slidably matched with the outer housing (1), and the third shifting fork (29) is rotatably connected to a coupling device so as to allow the third shifting fork (29) to drive the coupling device to operate.

5. A gear reduction unit according to claim 1, characterised in that the coupling means comprises a conical rubber wedge (26) fixedly connected to one end of the first output shaft (10) and a conical rubber sleeve (27) splined to the second output shaft (24), the conical rubber wedge (26) cooperating with the conical rubber sleeve (27), the conical rubber sleeve (27) being connected to the linkage adjustment means.

6. A gear reduction unit according to claim 1, characterized in that the gear reduction unit comprises a second intermediate shaft (28) laterally rotatably connected in the outer housing, said second intermediate shaft (28) coaxially mounting a fourth gear (31) in engagement with the first gear (5), said fourth gear (31) being coaxially connected to a fifth gear (32), said fifth gear (32) being in engagement with a sixth gear (33) mounted on the second output shaft (24), the radius of said fourth gear (31) being larger than the radius of the fifth gear (32).