阅读说明：本技术 一种可变转向减速机 (Variable steering speed reducer ) 是由 戴敏 于 2021-07-28 设计创作，主要内容包括：本发明公开了一种可变转向减速机,机器壳体前端安装有传动轴,且机器壳体后端安装有从动轴,机器壳体内部下方两侧均安装有轴承座,机器壳体内部下方安装有底部传动装置,且底部传动装置通过两侧轴承座安装固定,机器壳体内部安装有连杆,且连杆前后两端分别与传动轴和从动轴相连接,机器壳体内部位于连杆前后两端均安装有顶部传动装置,所述连杆中部位于顶部传动装置之间安装有变向装置,所述机器壳体内部上方安装有滑杆,所述变向装置顶部安装在滑杆上,所述机器壳体顶部安装有变向拨片,且变向拨片与变向装置相连接。本发明结构稳定可靠,在正常使用时可改变电机转动方向,还可同过减缓转速提高扭矩。(The invention discloses a variable steering speed reducer, wherein a transmission shaft is arranged at the front end of a machine shell, a driven shaft is arranged at the rear end of the machine shell, bearing seats are respectively arranged on two sides below the inner part of the machine shell, a bottom transmission device is arranged below the inner part of the machine shell and fixedly installed through the bearing seats on two sides, a connecting rod is arranged in the machine shell, the front end and the rear end of the connecting rod are respectively connected with the transmission shaft and the driven shaft, top transmission devices are respectively installed at the front end and the rear end of the connecting rod in the machine shell, a direction changing device is installed between the top transmission devices in the middle of the connecting rod, a sliding rod is installed above the inner part of the machine shell, the top of the direction changing device is installed on the sliding rod, a direction changing plectrum is installed at the top of the machine shell, and the direction changing plectrum is connected with the direction changing device. The invention has stable and reliable structure, can change the rotation direction of the motor during normal use, and can also reduce the rotation speed and improve the torque.)

1. The utility model provides a variable speed reducer that turns to, includes machine housing (1), transmission shaft (2), driven shaft (3), bearing frame (4), bottom transmission (5), connecting rod (6), top transmission (7), deviator (8), slide bar (9), diversion plectrum (10), its characterized in that: the transmission shaft (2) is installed at the front end of the machine shell (1), the driven shaft (3) is installed at the rear end of the machine shell (1), bearing seats (4) are installed on two sides of the inner portion of the machine shell (1), the bottom transmission device (5) is installed on the inner portion of the machine shell (1), the bottom transmission device (5) is fixedly installed through the bearing seats (4) on two sides, a connecting rod (6) is installed inside the machine shell (1), the front end and the rear end of the connecting rod (6) are respectively connected with the transmission shaft (2) and the driven shaft (3), the top transmission device (7) is installed at the front end and the rear end of the connecting rod (6) inside the machine shell (1), the turning device (8) is installed in the middle of the connecting rod (6) between the top transmission device (7), and a sliding rod (9) is installed above the inner portion of the machine shell (1), the top of the direction changing device (8) is installed on the sliding rod (9), the top of the machine shell (1) is provided with a direction changing shifting piece (10), and the direction changing shifting piece (10) is connected with the direction changing device (8).

2. The variable steering reducer according to claim 1, characterized in that: bottom transmission (5) still includes pivot A (11), pivot B (12), gear A (13), gear B (14), gear C (15) and pinion (16), install pivot A (11) and pivot B (12) on machine housing (1) inside both sides bearing frame (4) respectively, gear A (13) are installed to pivot A (11) front end, and pivot A (11) mid-mounting has gear B (14), pivot B (12) mid-mounting has gear C (15), and pivot B (12) rear end installs pinion (16).

3. The variable steering reducer according to claim 1, characterized in that: top transmission (7) are still including gear D (17), drive wheel (18), tooth's socket (19) and gear wheel (20), gear D (17) are installed to connecting rod (6) front end, and connecting rod (6) rear end installs gear wheel (20), drive wheel (18) are all installed to gear D (17) and gear wheel (20) inboard, a plurality of tooth's sockets (19) have been seted up to drive wheel (18) inboard equidistance.

4. The variable steering reducer according to any one of the preceding claims, wherein: the transmission shaft (2) drives the gear D (17) to rotate through the motor, the gear D (17) is meshed with the gear A (13), the gear A (13) is connected with the gear B (14) through the rotating shaft A (11), the gear B (14) is meshed with the gear C (15), the gear C (15) is connected with the pinion (16) through the rotating shaft B (12), the pinion (16) is meshed with the gearwheel (20), and the gearwheel D (20) drives the driven shaft (3) to rotate in a speed reducing mode in the opposite direction.

5. The variable steering reducer according to claim 1, characterized in that: connecting rod (6) are still including location strip (21) and rolling bearing (22), equal integrated into one piece has location strip (21) about connecting rod (6) middle part, rolling bearing (22) are installed to connecting rod (6) front end, make connecting rod (6) both ends rotate wantonly.

6. The variable steering reducer according to claim 1, characterized in that: turning device (8) are still including annular groove (23), fixture block (24), circular reservation groove (25), spout (26), annular stationary blade (27) and connection piece (28), annular groove (23) have been seted up on turning device (8), and both ends outside has all been seted up fixture block (24) around turning device (8), circular reservation groove (25) have been seted up to turning device (8) inside, spout (26) have all been seted up at both ends about circular reservation groove (25), annular stationary blade (27) are installed on annular groove (23), connection piece (28) are installed at annular stationary blade (27) top, connection piece (28) are installed on slide bar (9), and connection piece (28) top is connected with diversion plectrum (10).

7. The variable steering reducer according to any one of claims 1 to 3, wherein: the pinion (16) is in the form of a ratchet such that the pinion (16) drives the bull gear (20) and the bull gear (20) does not back-drive the pinion (16).

8. The variable steering reducer according to claim 1, characterized in that: when the direction changing device (8) is connected with the front end top transmission device (7) through the clamping block (24), the rear end of the connecting rod (6) drives the positioning strip (21) to synchronously rotate with the front end connecting rod through the inner sliding groove (26) of the direction changing device (8), and at the moment, the large gear D (20) drives the driven shaft (3) and the transmission shaft (2) to move at the same direction and speed.

Technical Field

The invention relates to a variable steering speed reducer, and belongs to the field of electromechanics.

Background

The speed reducer is an independent component consisting of gear transmission, worm transmission, gear and 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 existing speed reducer has too single function, can not change the rotation direction, can not cancel speed reduction as required, and can synchronously rotate along with the motor.

Disclosure of Invention

The present invention is directed to a variable steering reduction gear, which solves the above problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

a variable steering speed reducer comprises a machine shell, a transmission shaft, a driven shaft, bearing seats, a bottom transmission device, a connecting rod, a top transmission device, a direction changing device, a sliding rod and a direction changing shifting piece, wherein the transmission shaft is installed at the front end of the machine shell, the driven shaft is installed at the rear end of the machine shell, the bearing seats are installed on two sides of the inner lower portion of the machine shell, the bottom transmission device is installed on the inner lower portion of the machine shell, the bottom transmission device is fixedly installed through the bearing seats on two sides, the connecting rod is installed inside the machine shell, the front end and the rear end of the connecting rod are respectively connected with the transmission shaft and the driven shaft, the top transmission device is installed inside the machine shell and located on the front end and the rear end of the connecting rod, the direction changing device is installed between the top transmission devices, the sliding rod is installed above the inner portion of the machine shell, the top of the direction changing device is installed on the sliding rod, and the top of the machine shell is provided with a direction-changing shifting piece, and the direction-changing shifting piece is connected with a direction-changing device.

Preferably: bottom transmission still includes pivot A, pivot B, gear A, gear B, gear C and pinion, install pivot A and pivot B on the inside both sides bearing frame of machine housing respectively, gear A is installed to pivot A front end, and pivot A mid-mounting has gear B, pivot B mid-mounting has gear C, and the pinion is installed to pivot B rear end.

Preferably: the top transmission device further comprises a gear D, a transmission wheel, tooth sockets and a large gear, the gear D is installed at the front end of the connecting rod, the large gear is installed at the rear end of the connecting rod, the transmission wheel is installed on the inner sides of the gear D and the large gear, and the tooth sockets are equidistantly formed in the inner side of the transmission wheel.

Preferably: the transmission shaft drives the gear D to rotate through the motor, the gear D is meshed with the gear A, the gear A is connected with the gear B through the rotating shaft A, the gear B is meshed with the gear C, the gear C is connected with the small gear through the rotating shaft B, the small gear is meshed with the large gear, and the large gear D drives the driven shaft to rotate in a speed reduction mode in the opposite direction.

Preferably: the connecting rod further comprises a positioning strip and a rotating bearing, the positioning strip is integrally formed at the middle part of the connecting rod from top to bottom, and the rotating bearing is installed at the front end of the connecting rod, so that the two ends of the connecting rod can rotate freely.

Preferably: the direction changing device further comprises an annular groove, a clamping block, a circular reserved groove, a sliding groove, an annular fixing piece and a connecting piece, wherein the annular groove is formed in the direction changing device, the clamping block is formed in the outer sides of the front end and the rear end of the direction changing device, the circular reserved groove is formed in the direction changing device, the sliding groove is formed in the upper end and the lower end of the circular reserved groove, the annular fixing piece is installed on the annular groove, the connecting piece is installed at the top of the annular fixing piece, and the top of the connecting piece is connected with the direction changing shifting piece.

Preferably: the pinion gear is in a ratchet form, so that the pinion gear can drive the bull gear, and the bull gear can not drive the pinion gear reversely.

Preferably: when the direction changing device is connected with the front end top transmission device through the clamping block, the rear end of the connecting rod drives the positioning strip to synchronously rotate with the front end connecting rod through the inner sliding groove of the direction changing device, and at the moment, the large gear D drives the driven shaft and the transmission shaft to move at the same speed in the same direction.

The invention has the beneficial effects that: the invention has stable and reliable structure, can change the rotation direction of the motor during normal use, can also improve the torque by slowing down the rotation speed, and can also synchronously rotate at the same speed along with the motor by adjusting through the direction-changing plectrum when the speed is not required to be changed.

Drawings

FIG. 1 is a schematic structural diagram of a variable steering reducer according to the present invention;

FIG. 2 is a schematic view of the internal structure of the variable steering reducer of the present invention;

FIG. 3 is a schematic structural diagram of a bottom transmission device of the variable steering speed reducer according to the present invention;

FIG. 4 is a schematic structural diagram of a top transmission device of the variable steering reducer according to the present invention;

FIG. 5 is a schematic structural diagram of a connecting rod of the variable steering reducer of the present invention;

FIG. 6 is a schematic structural diagram of a direction changing device of the variable steering reducer of the present invention;

fig. 7 is a schematic structural diagram of a direction changing device of the variable steering speed reducer of the invention.

In the figure: 1. the machine comprises a machine shell, 2, a transmission shaft, 3, a driven shaft, 4, a bearing seat, 5, a bottom transmission device, 6, a connecting rod, 7, a top transmission device, 8, a direction changing device, 9, a sliding rod, 10, a direction changing shifting piece, 11, rotating shafts A, 12, rotating shafts B, 13, gears A, 14, gears B, 15, gears C, 16, a pinion, 17, gears D, 18, a transmission wheel, 19, a tooth groove, 20, a gearwheel, 21, a positioning strip, 22, a rotating bearing, 23, an annular groove, 24, a clamping block, 25, a circular reserved groove, 26, a sliding groove, 27, an annular fixing piece, 28 and a connecting piece.

Detailed Description

The invention will be further elucidated with reference to the following figures and specific embodiments:

as shown in fig. 1-7, a variable steering speed reducer comprises a machine housing 1, a transmission shaft 2, a driven shaft 3, a bearing seat 4, a bottom transmission device 5, a connecting rod 6, a top transmission device 7, a direction changing device 8, a slide rod 9 and a direction changing plectrum 10, wherein the transmission shaft 2 is installed at the front end of the machine housing 1, the driven shaft 3 is installed at the rear end of the machine housing 1, the bearing seats 4 are installed on two sides of the inner lower part of the machine housing 1, the bottom transmission device 5 is installed on the inner lower part of the machine housing 1, the bottom transmission device 5 is fixedly installed through the bearing seats 4 on two sides, the connecting rod 6 is installed in the machine housing 1, the front end and the rear end of the connecting rod 6 are respectively connected with the transmission shaft 2 and the driven shaft 3, the top transmission device 7 is installed at the front end and the rear end of the connecting rod 6 in the machine housing 1, the middle of the connecting rod 6, be located and install deviator 8 between the top transmission 7, slide bar 9 is installed to 1 inside top of machine casing, install on slide bar 9 deviator 8 top, 1 top of machine casing is installed diversion plectrum 10, and diversion plectrum 10 is connected with deviator 8. Bottom transmission 5 still includes pivot A11, pivot B12, gear A13, gear B14, gear C15 and pinion 16, install pivot A11 and pivot B12 on the inside both sides bearing frame 4 of machine housing 1 respectively, gear A13 is installed to pivot A11 front end, and pivot A11 mid-mounting has gear B14, pivot B12 mid-mounting has gear C15, and pinion 16 is installed to pivot B12 rear end. Top transmission 7 is still including gear D17, drive wheel 18, tooth's socket 19 and gear wheel 20, gear D17 is installed to connecting rod 6 front end, and connecting rod 6 rear end installs gear wheel 20, drive wheel 18 is all installed to gear D17 and gear wheel 20 inboard, a plurality of tooth's sockets 19 have been seted up to the inboard equidistance of drive wheel 18. The transmission shaft 2 drives the gear D17 to rotate through the motor, the gear D17 is meshed with the gear A13, the gear A13 is connected with the gear B14 through the rotating shaft A11, the gear B14 is meshed with the gear C15, the gear C15 is connected with the pinion 16 through the rotating shaft B12, the pinion 16 is meshed with the gearwheel 20, and the gearwheel D20 drives the driven shaft 3 to rotate in a speed reduction mode in the opposite direction. The connecting rod 6 further comprises a positioning strip 21 and a rotating bearing 22, the positioning strip 21 is integrally formed on the middle portion of the connecting rod 6 from top to bottom, and the rotating bearing 22 is installed at the front end of the connecting rod 6, so that two ends of the connecting rod 6 can rotate randomly. Turning device 8 is still including annular groove 23, fixture block 24, circular reservation groove 25, spout 26, annular stationary blade 27 and connection piece 28, annular groove 23 has been seted up on turning device 8, and the fixture block 24 has all been seted up in the both ends outside around turning device 8, circular reservation groove 25 has been seted up to turning device 8 inside, spout 26 has all been seted up at both ends about circular reservation groove 25, annular stationary blade 27 is installed on annular groove 23, connection piece 28 is installed at annular stationary blade 27 top, connection piece 28 is installed on slide bar 9, and connection piece 28 top is connected with direction changing plectrum 10. The pinion 16 is in the form of a ratchet such that the pinion 16 can drive the bull gear 20, but the bull gear 20 cannot drive the pinion 16 in reverse. When the direction changing device 8 is connected with the front end top transmission device 7 through the fixture block 24, the rear end of the connecting rod 6 drives the positioning strip 21 to synchronously rotate with the front end connecting rod through the sliding groove 26 in the direction changing device 8, and at the moment, the large gear D20 drives the driven shaft 3 to move at the same direction and speed as the transmission shaft 2.

The working principle of the invention is as follows: when speed reduction is needed, the transmission shaft 2 drives the gear D17 to rotate through the motor, the gear D17 is meshed with the gear A13, the gear A13 is connected with the gear B14 through the rotating shaft A11, the gear B14 is meshed with the gear C15, the gear C15 is connected with the pinion 16 through the rotating shaft B12, the pinion 16 is meshed with the gearwheel 20, the gearwheel D20 drives the driven shaft 3 to rotate in a reverse speed reduction mode, when speed reduction is not needed and the driven shaft 3 and the transmission shaft 2 rotate in the same direction, the rear end of the connecting rod 6 drives the positioning strip 21 and the front end connecting rod to rotate synchronously through the sliding of the direction changing plectrum 10 when the direction changing device 8 is connected with the front end top transmission device 7 through the clamping block 24, and the gearwheel D20 drives the driven shaft 3 and the transmission shaft 2 to move in the same direction and at the same speed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The embodiments are therefore to be considered in all respects as illustrative and all changes which come within the meaning and range of equivalency are therefore intended to be embraced therein.