CN108895136A - A kind of chip meshing gear stepless transmission of band speed regulation - Google Patents

Abstract

The invention discloses a plate-type meshing gear stepless transmission with speed regulation in the technical field of mechanical transmission, which includes a support frame, a driving arc wheel and a driven arc wheel are rotatably connected to the support frame, and an external transmission device The output end of the first drive is connected with a driving gear, the driving gear meshes with the driven gear, the driving arc wheel and the driven arc wheel are set oppositely, there are several driving slots arranged on the driving arc wheel, and the driven arc wheel There are a number of driven slots arranged on the top, and a number of connecting grooves are arranged on the first roller and the second roller. The first and second rollers are respectively connected to the first shrapnel and the second shrapnel with the same structure through the connecting grooves. Between the first roller and the second roller, at least one shrapnel on the first roller and the second roller is inserted into the driving slot and the driven slot respectively. On; the transmission part of the present invention is not easy to wear, safe and reliable.

Description

A stepless speed changer with plate meshing gears with speed regulation

technical field

The invention belongs to the technical field of mechanical transmission, and in particular relates to a plate-type meshing gear stepless transmission with speed regulation.

Background technique

As a transmission device, the continuously variable transmission meets the requirements of various working conditions during the operation of the machine or production system. Belt, chain and roller transmissions are currently used more, especially the roller transmission is widely used because of its convenient speed regulation.

In the prior art, a Chinese invention patent with the patent name "a driving roller continuously variable transmission" was disclosed, the application date was January 04, 2018, and the publication date was July 06, 2018. The transmission includes a box seat , the box seat is equipped with a driving cone wheel and a driven cone wheel. The input shaft drives the main cone wheel shaft. The main cone wheel shaft can be fixedly connected to the driving cone wheel. There is a driving roller between the wheel and the driven cone wheel, the driving roller is rotatably connected to the slider nut, the slider nut is screw connected with the speed regulating screw, the speed regulating screw is rotatably connected to the sliding seat rail, and the driven cone wheel Through the rotatable connection between the output shaft and the box seat, the directions of the two ends of the driving cone wheel and the driven cone wheel are opposite, the axes of the driving cone wheel and the driven cone wheel are parallel to each other, and the shapes of the driving cone wheel and the driven cone wheel are consistent The size is the same, the driving roller is pressed between the driving cone wheel and the driven cone wheel to realize the transmission from the driving cone wheel to the driven cone wheel, and the speed regulation button is turned to drive the speed regulation through the main adjustment gear, the slave adjustment gear and the universal joint. When the screw rotates, the slider guide rail on the slider nut is slidably connected in the groove of the slideway, and the speed-regulating screw drives the slider nut to move back and forth along the groove of the slideway, changing the relationship between the driving cone wheel, the driving cone wheel and the driven cone wheel. In this transmission, the driving roller slides between the driving cone wheel and the driven cone wheel, and the driving roller is pressed between the driving cone wheel and the driven cone wheel. When the driving roller slides, the transmission The rollers, the driving cone wheel and the driven cone wheel are subject to great sliding friction. The rotation of the driving cone wheel drives the rotation of the driving roller, and when the driving roller drives the rotation of the driven cone wheel, the driving roller, the driving cone wheel and the driven cone wheel Also subjected to a lot of rolling friction, the driving roller, the driving cone wheel and the driven cone wheel are severely worn. After long-term use, the driving roller, the driving cone wheel, and the driven cone wheel are prone to slipping during transmission, and the service life is short. Acceleration is unsafe, and the driving roller, driving cone wheel and driven cone wheel need to be replaced frequently, which is costly.

Contents of the invention

In view of the defects in the prior art, the purpose of the present invention is to solve the technical problem of high wear in the above prior art, and to provide a continuously variable transmission with speed-regulating plate meshing gears. The friction force of the present invention is small, and the transmission parts are not easy to wear ,Safe and reliable.

The purpose of the present invention is achieved in the following way: a continuously variable transmission with speed-regulating plate meshing gears, including a support frame and two concentric and spaced rollers 1 and 2 that are rotatable and horizontally oscillating synchronously, The structure of the first roller and the second roller is the same, the support frame is rotatably connected with a driven gear and a driven arc wheel, the output end of the external transmission device 1 is connected with a driving gear, and the driving gear and the driven gear are connected with the driven gear. The driven gear is meshed, and the driven gear is fixedly connected with a driving arc wheel coaxial with the driven gear. The driving arc wheel and the driven arc wheel are arranged oppositely, and the driving arc wheel is arranged There are a number of active slots, a number of driven slots are arranged on the driven arc wheel, a number of connection grooves are arranged on the first roller and the second roller, and the first roller and the second roller are respectively connected to each other through the connecting grooves. Shrapnel 1 and Shrapnel 2 with the same structure, the active curved wheel is between the first and second rollers, at least one shrapnel at one end of the first roller is inserted into the active slot to contact the active arc-shaped wheel, the other of the first roller One end has at least one shrapnel inserted into the driven slot to contact the driven arc wheel, one end of the roller two has at least one shrapnel inserted into the active slot to contact the driving arc wheel, and the other end of the roller two has at least A shrapnel 2 is inserted into the driven slot to contact the driven arc wheel, the width of the driving slot and the driven slot is not less than the width of the shrapnel 1, the driving arc wheel and the driven arc wheel The outer circumference is arc surface 1, the arc generatrices corresponding to the outer circumferences of the active arc wheel and the driven arc wheel are on the same circle, and the circles corresponding to the outer circumferences of the active arc wheel and the driven arc wheel arranged relative to the roller shaft one The center of (circle A) is on the central axis of the transmission shaft 1, and the center of the circle (circle B) corresponding to the outer circumference of the driving arc wheel and the driven arc wheel arranged relative to the roller shaft 2 is on the central axis of the transmission shaft 2 One end of the first roller set relative to the active arc wheel is arc surface two, and one end of the roller two opposite the active arc wheel is arc surface three, and the arc surface two and arc surface three are respectively connected to The arc surface is tangent.

When the present invention works, when the external transmission device moves, the output end of the external transmission device one rotates, the rotation of the output end drives the rotation of the driving gear, the rotation of the driving gear drives the rotation of the driven gear, and the rotation of the driven gear drives the driving arc. The rotation of the wheel, the rotation of the active arc wheel drives the rotation of roller one and roller two, and the rotation of roller one and roller two drives the rotation of the driven arc wheel; when it is necessary to adjust the speed of the driven arc wheel, the roller one and Roller 2 swings synchronously and in the same direction at the same time, and the contact positions of shrapnel 1 and shrapnel 2 with the active arc wheel change, so that the transmission ratio between the active arc wheel and the driven arc wheel changes, thereby changing the driven arc wheel. The rotating speed of the shape wheel can achieve the purpose of speed change; in the present invention, only one shrapnel needs to be inserted in the slot to realize the transmission, the friction force is small, the transmission parts are not easy to wear, and the transmission is safe and reliable; the first roller and the second roller are not in contact with the arc. Roller 1 and Roller 2 will not be worn out. When parts need to be replaced, only the shrapnel needs to be replaced, and the cost is low; the transmission torque between the driving arc wheel, the driven arc wheel, and shrapnel 1 or shrapnel 2 Smaller, the transmission is more stable; by changing the contact position between the first and second rollers and the driving arc wheel, the output speed of the driven arc wheel is changed, and the structure is ingenious; it can be applied to the speed regulation of mechanical transmission.

In order to realize the rotation and horizontal swing of roller 1 and roller 2, the output end of the external transmission device 2 is connected with worm 1 and worm 2 which are integrated and coaxial, and the worm 1 and worm 2 can be rotatably connected to the On the supporting frame, the supporting frame is rotatably connected with a transmission shaft 1 and a transmission shaft 2 which are vertically arranged. connected, the transmission shaft 2 is connected to one end of the roller shaft 2, and the other end of the roller shaft 2 is rotatably connected to the roller 2, and the rotation directions of the worm 1 and worm 2 are opposite.

In order to facilitate the disassembly and assembly of roller shaft one and transmission shaft one and the disassembly and assembly of roller shaft two and transmission shaft two, one end of the roller shaft one is provided with a clamping groove and a clamping hole communicating with the clamping groove. Shaft 1 is connected to roller shaft 1 through the clamping hole, and at least one connection hole is opened on the roller shaft 1 on both sides of the clamping groove; the structure of the roller shaft 2 and the roller shaft 1 is the same.

In order to realize the power output of the transmission, a transmission gear is fixedly connected to the end of the driven arc wheel away from the driving arc wheel, and an output gear is meshed on the transmission gear, and an output shaft for transmitting power is connected to the output gear .

Description of drawings

Fig. 1 is the front view of the present invention.

Fig. 2 is a three-dimensional structure diagram 1 of the present invention.

Fig. 3 is the second perspective structure diagram of the present invention.

Fig. 4 is a three-dimensional structural diagram of the present invention.

Fig. 5 is a three-dimensional structure diagram 1 in which the roller 1 and the roller shaft 1 are connected together in the present invention.

Fig. 6 is a three-dimensional structure diagram 2 in which the roller 1 and the roller shaft 1 are connected together in the present invention.

FIG. 7 is a partial enlarged view of A in FIG. 6 .

Fig. 8 is a side view of the roller 1 and the shrapnel pressure ring connected together in the present invention.

Fig. 9 is a B-B arrow view in Fig. 8 .

Fig. 10 is a three-dimensional structure diagram of the elastic piece 1 in the present invention.

Fig. 11 is a three-dimensional structure diagram of the driving arc wheel in the present invention.

Fig. 12 is a structural schematic view of the first roller and the second roller in contact with the driving arc wheel and the driven arc wheel respectively in the present invention.

Among them, 1 support frame, 2 transmission gear, 3 driven arc wheel, 4 worm wheel, 5 driving gear, 6 connecting shaft, 7 driving arc wheel, 8 roller, 9 output shaft, 10 worm, 11 output gear , 12 two-way thrust ball bearing, 13 driving shaft, 14 driven shaft, 15 worm two, 16 transmission shaft two, 17 worm gear two, 18 roller shaft two, 19 roller two, 20 connecting hole, 21 clamping groove, 22 clamping Hole, 23 roller shaft 1, 24 shrapnel 1, 25 angular contact ball bearing, 26 arc surface 2, 27 connection groove, 28 transmission shaft 1, 29 shrapnel pressure ring, 30 metal wire, 31 series connection hole, 32 active slot , 33 arc surface two, 34 driven slots.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

As shown in Figures 1 to 12, a plate-type meshing gear continuously variable transmission with speed regulation includes a support frame 1 and two coaxial and spaced rollers 8 and 8 that are rotatable and horizontally oscillating synchronously. Two 19, the structure of the roller one 8 and the roller two 19 is the same, the support frame 1 is rotatably connected with the driven gear and the driven arc wheel 3, the output end of the external transmission device one is connected with the driving gear 5, the driving gear 5 is meshed with the driven gear, and the driven gear is fixedly connected with the driving arc wheel 7 coaxially arranged with the driven gear, the driving arc wheel 7 and the driven arc wheel 3 are oppositely arranged, and the driving arc wheel 7 Some active slots 32 are arranged on the top, some driven slots 34 are arranged on the driven arc wheel 3, some connecting grooves 27 are arranged on the first roller 8 and the second roller 19, and the first roller 8 and the second roller 19 are respectively connected with the elastic sheet 1 24 and the elastic sheet 2 with the same structure through the connection groove 27, the active arc wheel 7 is between the roller 1 8 and the roller 2 19, and one end of the roller 8 has at least one elastic sheet 24 inserted into the active slot 32 In contact with the driving arc wheel 7, the other end of the roller one 8 has at least one shrapnel-24 inserted into the driven slot 34 to contact with the driven arc wheel 3, and one end of the roller two 19 has at least one shrapnel-24 inserted into the active plug The groove 32 is in contact with the driving arc wheel 7, and the other end of the roller 2 19 has at least one shrapnel 2 inserted into the driven slot 34 to contact the driven arc wheel 3, the width of the driving slot 32 and the driven slot 34 No less than the width of shrapnel 1 24, the width of active slot 32 is 0.5-2mm, and the width of shrapnel 1 24 is 0.3-2mm; the outer circumference of driving arc wheel 7 and driven arc wheel 3 are arc surfaces, The arc generatrix corresponding to the outer circumference of the active arc wheel 7 and the driven arc wheel 3 is on the same circle, and the arc corresponding to the active arc wheel 7 arranged relative to the roller one 8 and an end of the driven arc wheel 3 form The center of the circle (referred to as circle A for the convenience of description) is on the central axis of the transmission shaft one 28, and the arc formed by the corresponding arc of the driving arc wheel 7 and the other end of the driven arc wheel 3 arranged relative to the roller two 19 The center of the circle (referred to as circle B for the convenience of description) is on the central axis of the transmission shaft 2 16, the end of the roller 18 relative to the active arc wheel 7 is the arc surface 2 3326, and the roller 2 19 is opposite to the active arc wheel 7. One end provided is arc surface three, shrapnel one 24 stretches out of arc surface two 3326, shrapnel two stretches out of arc surface three, and arc surface two 3326 and arc surface three are respectively tangent to arc surface one Roller one 8 is in the place ahead of roller two 19; The driven arc wheel 3 place one end away from active arc wheel 7 is fixedly connected with transmission gear 2, is meshed with output gear 11 on the transmission gear 2, is connected with will on the output gear 11 The output shaft 9 through which the power is transmitted.

Realize the structure of the rotation and synchronous horizontal swing of the roller one 8 and the roller two 19, specifically, the output end of the external transmission device two is connected with a worm one 10 and a worm two 15 which are integrated and coaxial, and the worm one 10 and the worm screw two 15 can be rotatably connected on the support frame 1, and the support frame 1 is rotatably connected with a transmission shaft one 28 and a transmission shaft two 16 arranged vertically, and the transmission shaft one 28 is connected to one end of the roller shaft one 23, The other end of the roller shaft one 23 is provided with a shrapnel pressure ring 29, as shown in Figure 8-10, one end (A end) of the shrapnel one 24 is outside the arc surface two 3326, and the other end (B end) of the shrapnel one 24 passes through The connection groove 27 is pressed in the shrapnel pressure ring 29, the shrapnel 1 24 has a serial connection hole 31 near the B end, and the metal wire 30 is used to pass through the serial connection holes 31 of all the shrapnel 1 24 to connect them in series, and the transmission shaft 2 16 is connected to the roller One end of shaft two 18, the other end of roller shaft two 18 is rotatably connected with roller two 19, the direction of rotation of worm one 10 and worm two 15 is opposite, roller shaft one 23 and roller shaft two 18 are all horizontally arranged, and roller shaft one The structure of 23 and roller shaft two 18 is identical, and the structure that connects on roller one 8 and roller two 19 is also identical.

In order to facilitate the disassembly and assembly of roller shaft one 23 and transmission shaft one 28 and the disassembly and assembly of roller shaft two 18 and transmission shaft two 16, one end of roller shaft one 23 has a clamping groove 21 and a clamping groove 21 communicated with the clamping groove 21. Hole 22, roller shaft one 23 is connected with roller shaft one 23 through clamping hole 22, all has at least one connecting hole 20 on the roller shaft one 23 of clamping groove 21 both sides, uses clamping screw to pass through connecting hole 20 to make The gap between the clamping hole 22 and the clamping groove 21 becomes smaller, the roller shaft 1 23 is clamped and fixed on the transmission shaft 1 28 , and the roller shaft 2 18 is clamped and fixed on the transmission shaft 2 16 .

Wherein, the supporting frame 1 is rotatably connected with a driving shaft 13 and a driven shaft 14, the driving arc wheel 7 is installed on the driving shaft 13 through a two-way thrust ball bearing 12, and the driven arc wheel 3 is also mounted on the driving shaft 13 through a two-way thrust ball bearing. 12 is installed on the driven rotating shaft 14, and the first roller 8 and the second roller 19 are respectively connected to the first roller axle 23 and the second roller axle 18 through angular contact ball bearings 25; The gear 5 is installed on the connecting shaft 6; in addition, the external transmission device one and the external transmission device two are not drawn, and the external transmission device one and the external transmission device two are respectively the drive driving gear 5 and the worm screw one 10 which are arranged on the outside of the present invention. Rotating parts, such as external transmission device 1 and external transmission device 2, can be motors, the output shaft 9 of one motor is connected with the connecting shaft 6 through a coupling, and the output shaft 9 of the other motor is connected with the worm one 10 through a coupling .

As shown in Figure 12, the boundary contour of the active arc wheel 7 coincides with the circle whose radius is R, the center point of the roller one 8 is O, and the roller one 8 is in contact with the active arc wheel 7 and the driven arc wheel 3 simultaneously, The contact point is on a circle with radius R, the distance between two contact points is L, and the range of L is 0.5R≤L≤2R.

When the present invention works, when the external transmission device moves, the output end of the external transmission device 1 rotates, the rotation of the output end drives the rotation of the driving gear 5, the rotation of the driving gear 5 drives the rotation of the driven gear, and the rotation of the driven gear drives the driving gear. The rotation of the arc wheel 7, the rotation of the active arc wheel 7 drives the rotation of the roller one 8 and the roller two 19, the rotation of the roller one 8 and the roller two 19 drives the rotation of the driven arc wheel 3, and the driven arc wheel 3 The rotation of the transmission wheel drives the rotation of the transmission wheel, and the rotation of the transmission wheel drives the rotation of the output wheel, and the output wheel transmits the power through the output shaft 9; when the speed of the output wheel needs to be adjusted, the external transmission device 2 acts, and the output The rotation of the output end drives the rotation of worm one 10 and worm two 15, the rotation of worm one 10 drives the rotation of worm one 4, the rotation of worm two 15 drives the rotation of worm two 17, and the rotation of worm one 4 drives the transmission shaft one The rotation of 28, the rotation of worm gear 2 17 drives the rotation of transmission shaft 2 16, the rotation of transmission shaft 1 28 drives the swing of horizontally arranged roller shaft 1 23, and the rotation of transmission shaft 2 16 drives the swing of horizontally arranged roller shaft 2 18 , roller shaft 1 23 and roller shaft 2 18 simultaneously swing synchronously and in the same direction, and roller shaft 1 8 and roller shaft 2 19 perform synchronous swing in the same direction under the action of roller shaft 1 23 and roller shaft 2 18 respectively, and shrapnel 1 24 and shrapnel Two, the position in contact with the driving arc wheel 7 changes, so that the transmission ratio between the driving arc wheel 7 and the driven arc wheel 3 changes, thereby changing the rotating speed of the driven arc wheel 3 to achieve the purpose of speed change , and the speed is fast; in the present invention, the transmission is realized by embedding the first shrapnel 24 and the second shrapnel in the active slot 32 and the driven slot 34, the friction force is small, and the transmission parts are not easy to wear; the first roller 8 and the second roller 19 are not in contact with the arc Roller 1 8 and Roller 2 19 will not be subject to wear and tear. When parts need to be replaced, only the shrapnel needs to be replaced, and the cost is low. Contact, the contact between roller two 19 and the driving arc wheel 7 and driven arc wheel 3, the transmission torque between the arc wheel and the shrapnel is small, and the transmission is more stable; change the relationship between roller one 8 and roller two 19 and the driving arc The contact position of the wheel 7, so as to realize the variable speed of the output of the driven arc wheel 3, the adjustment is convenient, and the structure is ingenious; the shrapnel is elastic, and when the roller 1 8 or the roller 2 19 swings to the dead point, the shrapnel will be deformed in an appropriate amount to avoid The phenomenon of stuck, the transmission is smoother; all shrapnels one 24 or two shrapnels are connected in series through metal wire 30, and the shrapnels one 24 connected in series are pressed in the shrapnel pressure ring 29 in turn, which is convenient for disassembly and assembly and reliable in structure; It is used in the speed regulation work of mechanical transmission.

The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and modifications to some of the technical features according to the disclosed technical content without creative work. Deformation, these substitutions and deformations are all within the protection scope of the present invention.

Claims (4)

1. a kind of chip meshing gear stepless transmission of band speed regulation, it is characterised in that：It is concentric including support frame and two and The spaced idler wheel one and idler wheel two that can be rotated and do level of synchronization swing, the structure phase of the idler wheel one and idler wheel two Together, driven gear and driven arc wheel, the output end transmission of external transmission device one have been rotatably coupled on support frame as described above It is connected with driving gear, the driving gear is engaged with driven gear, is fixed on the driven gear coaxial with driven gear The active arc wheel of heart setting, active arc wheel and driven arc wheel face are arranged, and are placed on the active arc wheel several Active slot is placed with several driven slots on the driven arc wheel, is placed on the idler wheel one and idler wheel two several Link slot, idler wheel one and idler wheel two are connected separately with the identical elastic slice one of structure and elastic slice two, the active arc through link slot Between idler wheel one and idler wheel two, at least one elastic slice one of one end of idler wheel one is inserted into active slot and active arc wheel wheel Contact, described at least one elastic slice one of one other end of idler wheel are inserted into driven slot and contact with driven arc wheel, the idler wheel It is contacted at least one elastic slice one of two one end insertion active slot with active arc wheel, the other end of idler wheel two at least one A elastic slice two is inserted into driven slot and contacts with driven arc wheel, and the width of the active slot and driven slot is not less than bullet The periphery of the width of piece one, the active arc wheel and driven arc wheel is arc surface one, active arc wheel and driven arc wheel The corresponding arc bus in periphery on same circle, counter roller axis one be arranged active arc wheel and driven arc wheel periphery The center of circle of corresponding circle is on the central axis of transmission shaft one, active arc wheel and driven arc wheel that counter roller axis two is arranged The corresponding circle in periphery the center of circle on the central axis of transmission shaft two, one end of the opposite active arc wheel setting of the idler wheel one One end for arc surface two, the opposite active arc wheel setting of the idler wheel two is arc surface three, the arc surface two and arc surface Three is tangent with arc surface one respectively.

2. a kind of chip meshing gear stepless transmission of band speed regulation according to claim 1, it is characterised in that：Outside passes The output end of dynamic device two, which is sequentially connected with, can be integrated and concentric worm screw one and worm screw two, the worm screw one and worm screw two It is rotatably connected on support frame, the transmission shaft one and transmission shaft two being vertically arranged is rotatably coupled on support frame, The transmission shaft one connects one end of roller shaft one, and the other end of the roller shaft one is rotatably connect with idler wheel one, described Transmission shaft two connects one end of roller shaft two, and the other end of the roller shaft two is rotatably connect with idler wheel two, the worm screw One and worm screw two it is oppositely oriented.

3. a kind of chip meshing gear stepless transmission of band speed regulation according to claim 2, it is characterised in that：The rolling The holes for clamping that one end of wheel shaft one is provided with clamping slot and is connected to clamping slot, the roller shaft connect once holes for clamping and roller shaft one It connects, is provided at least one connecting hole on the roller shaft one of clamping slot two sides；The structure phase of the roller shaft two and roller shaft one Together.

4. a kind of chip meshing gear stepless transmission of described in any item band speed regulation, feature exist according to claim 1~3 In：Driven arc wheel far from the active arc wheel is fixed with transmission gear at one end, is engaged on the transmission gear Output gear is connected with the output shaft that power transmission is gone out on output gear.