CN204004250U - A kind of bilateral rotating disk roller reverse unidirectional movement parallel with sour jujube type tooth mechanism that utilizes - Google Patents

Abstract

A parallel and reverse one-way movement mechanism using double-sided turntable rollers and ratchet teeth, mainly including rotating discs, double-sided cylindrical rollers, rolling bearings, double-sided upper ratchet racks and double-sided lower ratchet racks; The rotating disc is connected with the cylindrical rollers on both sides through rolling bearings, and the cylindrical rollers on both sides mesh with the upper ratchet racks on both sides and the lower ratchet racks on both sides; The input drives the rotating disk to rotate, and the double-sided cylindrical rollers connected to the rotating disk through angular contact bearings will also rotate around the central axis of the rotating disk. The double-sided upper ratchet rack and the double-sided lower ratchet rack The contour surface of the upper ratchet teeth is in contact with the curved surface of the double-sided cylindrical rollers on the rotating disc, and the double-sided cylindrical rollers roll on the contours of the double-sided upper ratchet racks and the double-sided lower ratchet racks. When the disk is fixed, the ratchet rack on the side and the lower ratchet rack on both sides move in parallel and reverse horizontally.

Description

A parallel and reverse one-way motion mechanism using double-sided turntable rollers and ratchet teeth

technical field

The utility model relates to a linear transmission, in particular to a parallel and reverse one-way movement mechanism utilizing double-sided turntable rollers and ratchet teeth.

Background technique

The current linear transmission methods are mostly worm gear transmission, screw nut transmission, crank slider transmission, rack and pinion transmission, etc.; the disadvantage of worm transmission is that the transmission efficiency is low, and it is not suitable for long-term continuous work under high power. In order to reduce wear and wear, The worm gear ring gear needs to be made of precious bronze, and the cost is high; the screw nut transmission friction resistance is large, and the transmission efficiency is low; the crank slider transmission distance is limited, and the transmission accuracy is low; relatively speaking, the rack and pinion has large transmission power and high efficiency. At the same time, it has the characteristics of long life, stable operation and high reliability; however, the manufacturing and installation precision of the rack and pinion is high, so the cost is also high, and one-way movement cannot be guaranteed.

Contents of the invention

The purpose of this utility model is to solve the deficiencies in the transmission mode of the existing linear transmission. According to the rack and pinion transmission mode, a parallel and reverse one-way movement mechanism using double-sided turntable rollers and ratchet teeth is developed. The mechanism has a gear In the process of rack and rack transmission, the transmission power is large, the efficiency is high, and the work is stable. At the same time, the accuracy of manufacturing and installation is reduced, and it has the characteristics of reverse self-locking.

In order to achieve the above purpose, the technical solution adopted by the utility model is as follows: it mainly includes a rotating disc, a double-sided cylindrical roller, a rolling bearing, a double-sided upper ratchet rack and a double-sided lower ratchet rack; the rotating disc passes through the rolling bearing It is connected with cylindrical rollers on both sides, and the cylindrical rollers on both sides mesh with the upper ratchet racks on both sides and the lower ratchet racks on both sides.

According to the above scheme, the central axis of the rotating disc is provided with a central hole, and a keyway for cooperating with the motor for transmission is provided in the hole. At the same time, there is an inner hole on the rotating disc, which can be used to reduce the mass of the rotating disc and save material, and a number of outer ring holes connected with double-sided cylindrical rollers are evenly distributed on the outer ring.

According to the above scheme, the double-sided upper ratchet rack and the double-sided lower ratchet rack are provided with a plurality of ratchet teeth, and the rolling bearing is a standard part.

According to the above scheme, the double-sided cylindrical roller is composed of two parts, the flower shaft and the shaft sleeve, and the two parts are connected by splines.

According to the above scheme, the axis of the rotating disc is designed with a keyway connected to the motor. The rotating disc is parallel to the double-sided upper ratchet rack and the bilateral lower ratchet rack. Cylindrical rollers on both sides are connected to the rotating disk through angular contact bearings, and the curved surfaces of the cylindrical rollers on both sides mesh with the contour surfaces of the upper ratchet racks on both sides and the lower ratchet racks on both sides. Angular contact bearings can fix the displacement of the cylindrical rollers on both sides in the axial direction, but it does not affect the circumferential rotation of the cylindrical rollers on both sides.

Due to the adoption of the above technical proposal, the utility model has the characteristics of large transmission power, high efficiency, stable operation, parallel and reverse transmission, and at the same time reduces the manufacturing and installation precision, and has the advantages of reverse self-locking.

Description of drawings

Fig. 1 is a front view of the overall appearance structure of the present utility model.

Fig. 2 is a side view of the overall appearance structure of the utility model.

Fig. 3 is a rear view of the overall appearance structure of the utility model.

Fig. 4 is a schematic diagram of a flower axis of the present invention.

Fig. 5 is a schematic diagram of the shaft sleeve of the present invention.

In the figure: 1. Double-sided upper ratchet rack, 2. Rotating disc, 3. Center hole, 4. Keyway, 5. Ratchet tooth, 6. Double-sided cylindrical roller, 7. Outer ring hole, 8. Inner ring hole, 9. Angular contact bearing, 10. Double-sided lower ratchet rack, 11. Flower shaft, 12. Shaft sleeve.

Detailed ways

As shown in Figure 1, Figure 2 and Figure 3, it mainly includes double-sided upper ratchet rack 1 and double-sided lower ratchet rack 10, rotating disc 2, side cylindrical roller 6 and angular contact bearing 9; The disk 2 is connected with the double-sided cylindrical roller 6 through the rolling bearing 9, and the double-sided cylindrical roller 6 meshes with the double-sided upper ratchet rack 1 and the double-sided lower ratchet rack 10.

According to the above scheme, the rotating disc 2 is provided with a central hole 3, and a keyway 4 for cooperating with the motor for transmission is provided in the hole, and an inner ring hole 8 is arranged on the rotating disc at the same time, which can be used to reduce the mass and friction of the rotating disc. Material is saved, and a number of outer ring holes 7 are uniformly distributed on the outer ring at the same time.

According to the above scheme, the double-sided upper ratchet rack 1 and the double-sided lower ratchet rack 10 are provided with a plurality of ratchet teeth 5, and the rolling bearing 9 is a standard part.

According to the above scheme, the double-sided cylindrical roller 6 is composed of two parts, the flower shaft 11 and the shaft sleeve 12, and the two parts are connected by splines.

According to the above scheme, the axis of the rotating disc 2 is designed with a keyway 4 connected to the motor, the rotating disc 2 is parallel to the double-sided upper ratchet rack 1 and the bilateral lower ratchet rack 10, and the rotating disc 2 A number of double-sided cylindrical rollers 6 are evenly distributed in the circumferential direction. The double-sided cylindrical rollers 6 are connected to the rotating disk 2 through angular contact bearings 9. The profile surfaces of the ratchet rack 10 engage. The angular contact bearing 9 can fix the axial displacement of the double-sided cylindrical rollers, but does not affect the circumferential rotation of the double-sided cylindrical rollers 6; The forced movement of the contour surface of the ratchet tooth 5 on the ratchet rack 10 is rolling, and the friction therebetween is rolling friction, which can greatly reduce the friction force and increase the transmission efficiency.

When the utility model is working, firstly, the motor transmits the power by cooperating with the keyway 4 at the center of the rotating disk 2 to drive the rotating disk 2 to rotate, and is connected to both sides of the rotating disk 2 through the angular contact bearing 9 The cylindrical roller 6 will also rotate around the central axis of the rotating disk 2, the contour surface of the ratchet tooth 5 on the double-sided upper ratchet rack 1 and the double-sided lower ratchet rack 10 and the double-sided cylinder on the rotating disk 2 The curved surfaces of the rollers 6 are in contact, and the double-sided cylindrical rollers 6 are forced to roll on the contours of the double-sided upper ratchet rack 1 and the double-sided lower ratchet rack 10, and the two generate relative motion. If the rotating disc is fixed , then the bilateral upper ratchet rack 1 and the bilateral lower ratchet rack 10 move horizontally in parallel and in reverse.

Claims (5)

1. A parallel and reverse one-way movement mechanism using double-sided turntable rollers and ratchet teeth, characterized in that it includes double-sided upper ratchet racks (1) and bilateral lower ratchet racks (10), rotating The disc (2), the double-sided cylindrical roller (6) and the angular contact bearing (9); the rotating disc (2) is connected with the double-sided cylindrical roller (6) through the rolling bearing (9), and the double-sided cylindrical roller ( 6) Mesh with the bilateral upper ratchet rack (1) and the bilateral lower ratchet rack (10). 2. A parallel and reverse one-way movement mechanism using double-sided turntable rollers and ratchet teeth according to claim 1, characterized in that: the rotating disk (2) is provided with a central hole (3), and the central hole ( 3) There is a keyway (4) for cooperating with the motor for transmission, and at the same time, there are inner ring holes (8) on the rotating disc, and a number of outer ring holes (7) are evenly distributed on the outer ring. 3. A parallel and reverse one-way movement mechanism using double-sided turntable rollers and ratchet teeth according to claim 1, characterized in that: the double-sided upper ratchet rack (1) and the double-sided lower ratchet teeth The body of the bar (10) is provided with some ratchet teeth (5), and the rolling bearing (9) is a standard part. 4. A parallel and reverse one-way movement mechanism using double-sided turntable rollers and ratchet teeth according to claim 1, characterized in that: the double-sided cylindrical roller (6) consists of a cylindrical roller shaft body, a cylindrical roller The sub-shaft sleeve is composed of two parts, a spline (11) is provided on one side of the cylindrical roller shaft body, a spline keyway (12) is provided in the middle of the cylindrical roller sleeve, and the two parts are connected by a spline. 5. According to claim 1, a parallel and reverse one-way movement mechanism using double-sided turntable rollers and ratchet teeth, the axis of the rotating disk (2) is designed with a keyway (4) connected to the motor ), the rotating disk (2) is on the same plane as the double-sided upper ratchet rack (1) and the bilateral lower ratchet rack (10), and several double-sided cylindrical rollers are evenly distributed in the circumferential direction of the rotating disk (2) (6), the rotating disc (2) is connected with the double-sided cylindrical roller (6) through the rolling bearing (9), and the curved surface of the double-sided cylindrical roller is connected with the double-sided upper ratchet rack (1) and the double-sided lower ratchet tooth The profiled face of the strip (10) engages.