WO2017202030A1

WO2017202030A1 - Driving belt auxiliary pressing conical disk belt-type transmission

Info

Publication number: WO2017202030A1
Application number: PCT/CN2017/000255
Authority: WO
Inventors: 钟晓悦
Original assignee: 钟晓悦
Priority date: 2016-05-27
Filing date: 2017-03-23
Publication date: 2017-11-30
Also published as: CN105782376B; CN105782376A

Abstract

Disclosed is a driving belt auxiliary pressing conical disk belt-type transmission. The driving belt auxiliary pressing conical disk belt-type transmission comprises spline shafts (1), conical disks (2), a driving belt (3), a conical disk displacement control sleeve (20), a support sleeve (19), a servo motor shaft gear (22), a stress application chain (4), a double-piston tensioning assembly (5), a caliper (12), a double ring tooth-shaped positioning spring (13), an arc pressure block assembly (15), and a carriage body (11), wherein, a back stress application mechanism is arranged on the outer back side of the driving belt (3) at the conical disk contact section of the conical disk (2), or a side stress application mechanism is arranged on each of the two sides of the driving belt (3) at the conical disk contact section of the conical disk (2); the driving belt (3) is clamped between two sliding conical disks (2) which are oppositely arranged on the same spline shaft, and are connected with the two groups of conical disks (2); and under the action of a conical disk movement control mechanism, along with the moving of the coaxial conical disk (2), the diving belt is changed in diameter on the conical surface of the conical disk (2), so that the transmission ratio can be changed in a continuous manner or in a constant-value manner.

Description

Drive belt auxiliary extrusion cone and belt type shifting device

Technical field

The invention patent belongs to the technical field of transmission shifting, and particularly relates to a belt-assisted extrusion cone-and-belt type shifting device.

Background technique

Ordinary cone steel belt with stepless speed change device (CVT), the steel belt with the cone contact section has no additional pressing force, and the cone between the cone and the steel belt is easy to slip, which not only affects the transmission efficiency and transmission capacity, but also affects the life of the steel strip. .

The invention patents exerts an additional pressing force on the outer back side or both sides of the belt of the cone contact section, thereby reducing the slip phenomenon between the cone and the belt, not only improving the transmission efficiency and the transmission capacity, but also passing the urging mechanism and the cone. The disc control system cuts off or engages power transmission and can also be used in combination with other shifting devices.

Summary of the invention

In order to solve the above problems, the present invention relates to a belt auxiliary scrolling belt type shifting device, which comprises a spline shaft, a cone disk, a transmission belt, a cone displacement control sleeve, a support sleeve, a servo motor shaft gear, and an afterburner. Chain, double piston tensioning assembly, caliper, double annular toothed positioning spring, curved briquetting assembly, car body, etc. The utility model is characterized in that the outer back side of the belt of the cone contact section is provided with a back urging mechanism or a side urging mechanism on both sides to limit the relative sliding between the belt and the cone surface of the cone; the belt is clamped on the same spline shaft, Between the two sliding cones arranged opposite each other, and connecting the two sets of cones; under the action of the cone movement control mechanism, with the movement of the coaxial cone, the belt is tapered on the cone surface of the cone, which can be continuous or fixed The value changes the gear ratio.

The transmission belt of the device is characterized in that the transmission belt is an annular laminated steel belt or other tension belt, and a misaligned stop pin is arranged between the belt layers.

The cone disk of the device is characterized in that the cone disk is a conical disk body, and the cone disks are arranged in pairs and facing each other to form a cone disk group; the cone disk group is mounted on the central spline shaft and can be synchronized on the spline shaft, Moving in opposite directions; two cone sets, which form the input cone set and the output cone set, respectively. The contact portion between the center of the cone body and the spline shaft is designed as a spline shaft sleeve. The outer cylindrical surface of one end of the spline shaft sleeve is designed with an outer annular groove, and the end surface of the same end is designed with an end annular groove.

The axial movement control of the cone of the device is controlled by the cone displacement control sleeve and the support sleeve and the servo motor shaft gear which are arranged on the optical axis section of the spline shaft and the outer side of the cone. The inner part of the cone disc displacement control sleeve is designed as a stepped hole, and the large hole is a light hole and is sleeved at one end of the spline shaft sleeve at the center of the cone disc, and is connected with the outer annular groove of the spline disc spline shaft sleeve through the pin; An annular groove is formed on the inner annular end surface, and the annular groove is arranged with the annular groove of the end face of the spline shaft sleeve at the center of the cone disk, and the roller plate is axially supported; the cone displacement control sleeve is small The hole is designed as an internal thread and is connected to a support sleeve fixed to the car body; the outer cylindrical surface of the cone displacement control sleeve is designed as a gear, and the gear meshes with a servo motor shaft gear fixed to the car body.

The back urging mechanism of the device comprises an afterburning chain and a double piston tensioning assembly, and the double piston tensioning assembly comprises a cylinder body, a compression spring, a piston rod, a sealing ring and the like. The utility model is characterized in that the outer side of the belt of the cone contact section is provided with a force chain, and the two ends of the chain are respectively connected with the rod end of the piston of the double piston tensioning assembly supported on the car body. The chain is composed of a plurality of chain links, and the diameter of the pressure roller of the chain link is larger than the width of the side chain plate of the chain, so that the outer cylindrical surface of the pressure roller is in contact with the outer back surface of the belt. The double piston tensioning assembly has two wings supported on the car and is slidable on its support surface. When the chain is forced, the piston is tensioned by the compression spring, so that the chain drives the pressure roller to squeeze the transmission belt from the cone. When the chain is not forced, the piston is relieved by the hydraulic pressure to relax the chain, so that the chain drives the pressure roller and The drive belt is not in pressure contact.

The side urging mechanism of the device comprises a caliper, a double annular toothed positioning spring, and an arc-shaped pressure block assembly. The curved pressure block assembly comprises a cylinder block, an arc-shaped pressure block, a compression spring, a sealing ring and the like. The utility model is characterized in that the movable caliper set is arranged annularly on the cone disk body, and the calipers on both sides of the transmission belt of the contact section of the cone disk are acted by the arc-shaped pressure block assembly, and can protrude from the cone surface of the cone disk and press against the side of the transmission belt. The caliper can slide axially in the caliper hole on the cone body, and the caliper end is a tongue-shaped jaw end, and the jaw end can protrude from the cone surface of the cone to contact the side and the outer side of the belt, or can exit the cone surface and The drive belt is disengaged; the other end of the caliper is a bearing end, the bearing end is in contact with the curved pressing block, the side of the bearing end is grooved, the double annular toothed positioning spring is embedded in the groove, and the positioning spring is on the cone surface of the cone fixed. Arc The shaped block assembly is fixed on the car body of the arc between the cone and the belt. The working caliper, under the action of the curved briquetting assembly, overcomes the double annular toothed positioning spring elastic force to press the side and the outer back of the transmission belt; the caliper in the non-working state is not affected by the curved briquetting, in the double annular tooth shape Under the action of the positioning spring, the cone surface of the cone is exited.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing the structure of a specific embodiment of the present invention taken along line B-B.

Figure 2 is a cross-sectional view showing the structure of the embodiment of the present invention, taken along the line A-A.

Figure 3 is a cross-sectional view showing the structure of a C-C of a specific embodiment of the present invention.

In the figure, 1 is a spline shaft, 2 is a cone, 3 is a transmission belt, 4 is a force chain, 5 is a double piston tensioning assembly, 6 is a cylinder of a double piston tensioning assembly, and 7 is a double piston pulling The piston seal of the tight assembly, 8 is the piston rod of the double piston tensioning assembly, 9 is the compression spring of the double piston tensioning assembly, 10 is the displacement of the transmission belt, 11 is the car body, 12 is the caliper, 13 is Double annular toothed positioning spring, 14 is an arc-shaped pressing block of the arc-shaped pressing block assembly, 15 is an arc-shaped pressing block assembly, 16 is a cylinder block of the curved pressing block assembly, and 17 is an arc-shaped pressing block assembly. The compression spring, 18 is a piston seal ring of the arc-shaped clamp assembly, 19 is a support sleeve, 20 is a cone displacement control sleeve, 21 is a pin, 22 is a servo motor shaft gear, and 23 is a ball.

detailed description

The basic scheme of the invention patent is to provide a back urging mechanism on the outer side of the belt of the cone-and-belt belt type transmission and the cone contact section or a side urging mechanism on both sides to limit the relative sliding between the belt and the tapered surface of the cone; The drive belt is clamped between the two sliding cones on the same spline shaft and opposite to each other, and connects the two sets of cones; under the action of the cone movement control mechanism, the belt is driven by the cone and the cone The taper surface is reduced in diameter, and the transmission ratio is changed continuously or at a fixed value. In order to be able to clearly illustrate the technical features of the present solution, the present embodiment will be described below through specific embodiments and in conjunction with the accompanying drawings.

The transmission belt 3 of the present solution is an annular laminated steel belt or other tension belt, and a misaligned stop pin 10 is disposed between the belt layers.

The cone 2 of the present scheme is a conical disc body, and the cone discs are arranged in pairs and oppositely to form a cone disc group; the cone disc group is mounted on the central spline shaft 1 and can be synchronously and moved on the spline shaft 1; Cone disk set, respectively forming an input cone Disk set and output cone set. The contact portion between the center of the cone body and the spline shaft 1 is designed as a spline shaft sleeve. The outer cylindrical surface of one end of the spline shaft sleeve is designed with an outer annular groove, and the end surface of the same end is designed with an end annular groove.

The axial movement control mechanism of the cone 2 of the present embodiment includes a spline shaft 1, a cone 2, a cone displacement control sleeve 20, a support sleeve 19, a servo motor shaft gear 22, and the like. Specifically, the axial precision displacement control of the cone 2 is performed by the cone displacement control sleeve 20 and the support sleeve 19 and the servo motor shaft gear 22 which are disposed on the optical axis section of the spline shaft 1 and the outer side of the cone 2 . The inside of the cone displacement control sleeve 20 is designed as a stepped hole, and the large hole is a light hole and is sleeved on one end of the spline shaft sleeve on the cone 2, and is connected with the outer annular groove of the spline shaft sleeve on the cone 2 through the pin 21. An annular annular groove is formed on the inner annular end surface formed between the large and small holes, and the annular groove is arranged between the annular groove and the annular groove on the end surface of the spline shaft sleeve on the cone 2, and the cone 2 is axially supported; The inner small hole of the cone disc displacement control sleeve 20 is designed as an internal thread and is connected to the support sleeve 19 fixed to the car body 11; the outer cylindrical surface of the cone disc displacement control sleeve 20 is designed as a gear, and the gear is fixed to The servo motor shaft gear 22 on the car body 11 is engaged.

The back urging mechanism of the present solution comprises an afterburning chain 4 and a double piston tensioning assembly 5, and the double piston tensioning assembly 5 comprises a cylinder 6, a sealing ring 7, a piston rod 8, a compression spring 9, and the like. Specifically, the afterburner chain 4 is disposed on the contact section area of the cone 2 and the belt 3, and on the outer back side of the belt 3, and the two ends of the chain 4 are respectively connected to the piston rod of the double piston tensioning assembly 5 supported on the car body 11. 8 connections. The chain 4 is composed of a plurality of chain links, and the diameter of the pressure roller of the chain link is larger than the width of the side chain plate of the chain, so that the outer cylindrical surface of the pressure roller is in contact with the outer back surface of the transmission belt 3. The two wings on the cylinder 6 of the double piston tensioning assembly 5 are supported on the car body 11 and can slide on the supporting surface thereof; when the chain 4 is applied, the piston rod 8 is compressed by the compression spring 9 to tighten the chain 4 The chain 4 drives the pressure roller to radially press the transmission belt 3 from the cone 2; when the chain 4 is not forced, the piston rod 8 is released by the hydraulic pressure to relax the chain 4, so that the chain 4 drives the pressure roller and the transmission belt 3 to be in non-pressure contact.

The side force applying mechanism of the present invention comprises a caliper 12, a double annular toothed positioning spring 13, and an arcuate pressing block assembly 15. The curved pressing block assembly 15 comprises an arc-shaped pressing block 14, a cylinder block 16, a compression spring 17, Sealing ring 18 and the like. Specifically, the caliper set consisting of the movable calipers 12 disposed annularly on the disk body of the cone 2, and the calipers 12 on both sides of the transmission belt 3 contacting the cone 2 are acted upon by the curved clamp assembly 15 to protrude the cone The disk 2 is tapered and pressed against the side of the belt 3 surface. The caliper 12 can slide axially in the caliper hole on the disc body of the cone 2, and the caliper 12 has a tongue-shaped jaw end at one end, and the nip end can protrude from the tapered surface of the cone 2 to contact the side and the outer back of the belt 3 , or the taper surface of the taper disc 2 can be disengaged from the driving belt 3; the other end of the caliper 12 is a bearing end, the bearing end is in contact with the arc-shaped pressing block 14, the side of the bearing end is grooved, and the groove is embedded with a double ring. The toothed positioning spring 13 is fixed to the tapered surface of the cone 2 . The curved briquetting assembly 15 is fixed to the car 11 in which the cone 2 and the belt 3 are in contact with the arc. The caliper 12 in the working state, under the action of the curved pressing block 14, overcomes the side and the outer back of the transmission belt 3 by the elastic force of the double annular toothed positioning spring 13; the caliper 12 in the non-working state is not affected by the curved pressing block 14, Under the action of the double annular toothed positioning spring 13, the tapered surface of the cone 2 is withdrawn.

The technical features that are not described in the patent of the present invention can be implemented by the prior art, and are not described herein again. Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions made by those skilled in the art within the scope of the invention may be changed. It should also fall within the scope of protection of the patent of the present invention.

Claims

The utility model relates to a belt auxiliary grinding cone belt type shifting device, which comprises: a spline shaft, a cone disc, a transmission belt, a cone disc displacement control sleeve, a support sleeve, a servo motor shaft gear, an afterburning chain, a double piston pull Tight assembly, caliper, double annular toothed positioning spring, curved briquetting assembly and car; the outer surface of the cone contact belt is provided with a back urging mechanism or two side side urging mechanisms for limiting the belt and Sliding between the tapered surfaces of the cone; the belt is clamped on the same spline shaft, between the two sliding cones arranged opposite each other, and connects the two sets of cones; under the action of the cone movement control mechanism, The movement of the coaxial cone, the belt is tapered on the cone surface of the cone, and the transmission ratio can be changed continuously or at a fixed value.
A belt-assisted squeeze cone-and-belt type shifting device according to claim 1, wherein said back urging mechanism comprises a urging chain disposed on an outer back side of the belt contact section belt, said urging chain two The ends are respectively connected with the piston rod ends of the double piston tensioning assembly supported on the car body; the outer cylindrical surface of the chain pressing roller is in contact with the outer back surface of the transmission belt; the double piston tensioning assembly is supported on the car body and can be in the same Slide on the support surface.
A belt-assisted squeeze cone-and-belt type shifting device according to claim 1, wherein said side urging mechanism comprises a plurality of movable calipers arranged annularly on the cone, and the side of the belt of the cone contact section The caliper is acted upon by the arc-shaped pressing block assembly, and can protrude from the cone surface of the cone and press against the side of the belt; the caliper can slide axially in the caliper hole on the cone body, and the caliper has a tongue-shaped jaw at one end The end of the jaw may protrude from the taper surface of the cone to contact the side and the outer back of the belt or may be separated from the cone of the cone and out of contact with the belt; the other end of the caliper is a bearing end, and the bearing end is in contact with the curved pressing block. A groove is formed on the side of the pressing end, and a double annular toothed positioning spring is embedded in the groove, and the positioning spring is fixed on the tapered surface of the cone; the curved pressing block assembly is fixed on the car body of the arc of the cone and the transmission belt.
The transmission belt auxiliary extrusion cone-and-belt type shifting device according to claim 1, wherein the transmission belt is an annular laminated steel belt or a common tension belt, and a misaligned stop pin is disposed between the belt layers.
A belt auxiliary scrolling belt type shifting device according to claim 1, wherein said cone axial movement control mechanism comprises a cone displacement control sleeve which is sleeved on the spline shaft optical axis section and the outer side of the cone disk. And a support sleeve and a servo motor shaft gear; the cone displacement control sleeve is internally designed as a stepped hole, and the large hole is a light hole And sleeved on one end of the spline shaft sleeve at the center of the cone plate, and is hooked to the outer annular groove of the spline spline shaft sleeve by a pin; the inner annular end surface formed between the large and small holes is designed with an annular groove, the annular groove and the cone Balls are arranged between the annular grooves of the end face of the spline shaft sleeve at the center of the disc, and the cones are axially supported; the small holes in the cone displacement control sleeve are designed as internal threads, and the support sleeve fixed on the car body The cylinder is connected; the outer cylindrical surface of the cone displacement control sleeve is designed as a gear, and the gear meshes with a servo motor shaft gear fixed to the car body.
A belt-assisted extrusion cone-and-belt type shifting device according to claim 1, wherein said cone disk is a conical disk body, and the cone disks are arranged in pairs and oppositely to form two cone-shaped disk sets; They are all mounted on the central spline shaft and can be synchronized and moved on the spline shaft; the two cone sets respectively constitute the input cone set and the output cone set; the central part of the cone body is designed as a spline shaft The outer annular surface of one end of the sleeve and the spline shaft sleeve is provided with an outer annular groove, and the end surface of the same end is provided with an end annular groove.