CN114877027A - Spiral disk type gear transmission device - Google Patents

Abstract

The invention discloses a helical disk gear transmission device, comprising a base plate and a plurality of gears, an input shaft for driving the base plate to rotate is fixedly installed in the middle of the base plate, and helical teeth are arranged on the base plate, so The helical teeth are a circle of plane helical annular structures, which include an entry meshing end, a helical track, and an exit meshing end, each gear is fixedly installed with an output shaft, each gear is meshed with the helical teeth, and the helical teeth are For each revolution, each gear rotates by the angle of one tooth. The helical disk gear transmission device of the present invention solves the technical requirement that a large transmission ratio can be achieved by using a simple transmission structure, and solves the problem that the entire gear will be scrapped due to damage to the tooth shape in the traditional gear transmission by using the separate structure. The traditional gearbox only has the problem of certain and unique transmission ratio, which realizes the ability of one input end and output end of different transmission ratios.

Description

A helical disc gear transmission

technical field

The invention belongs to the technical field of gear transmission systems, in particular to a gear transmission device with a large transmission ratio and multiple outputs.

Background technique

Gear transmission system has a wide range of applications in industrial products, the main types include one-stage or multi-stage cylindrical gear transmission system, worm gear transmission and one-stage or multi-stage planetary gear transmission system, etc., which can achieve the effect of different transmission ratios and transmission power . But in general, it is difficult to achieve the requirement of simple structure synchronously in the case of large transmission ratio. In addition, since the gear is a high-precision component with a great value, once the gear teeth are glued or the tooth root is broken, the entire gear is in a state of complete scrapping.

SUMMARY OF THE INVENTION

In view of the above problems existing in the prior art, the present invention provides a helical disk gear transmission device with a large transmission ratio and multiple outputs.

To achieve the above object, the present invention provides the following technical solutions:

A helical disk gear transmission device includes a base plate and several gears, an input shaft for driving the base plate to rotate is fixedly installed in the middle of the base plate, and helical teeth are arranged on the base plate, and the helical teeth are A circle of plane helical ring structure, which includes an entry meshing end, a helical track, and an exit meshing end, an output shaft is fixedly installed on each gear, and each gear is meshed with the helical teeth, and the helical teeth rotate each turn , each gear rotates by the angle of one tooth.

Further, the base plate and the plurality of gears are installed in a box body, and the box body includes a lower box cover and an upper box cover.

Further, the lower case cover is provided with a bearing seat F, the upper case cover is provided with a bearing seat E, the input shaft is positioned and installed in the case body through a first bearing and a second bearing, wherein the second bearing Mounted in bearing housing F, the first bearing is mounted in bearing housing E.

Further, when the output shaft includes two output shafts, namely a first output shaft and a second output shaft, the upper case cover includes a left-right symmetrically buckled first upper case cover and a second upper case cover, the first A bearing seat C and a bearing seat D are arranged on the first upper box cover, and a bearing seat A and a bearing seat B are arranged on the second upper box cover. The first output shaft passes through the third bearing and the bearing seat B, and passes through the fourth bearing. Assembled with bearing seat D, the second output shaft is assembled with bearing seat A through a fifth bearing and with bearing seat C through a sixth bearing.

Further, the helical teeth and the base plate adopt a separate assembly structure.

Further, the helical teeth are fixed with the base plate by screws to form a helical toothed plate.

Further, the number of teeth of each gear is the same, and the whole device has several output ends with the same transmission ratio.

Further, several gears have at least two different numbers of teeth, and the whole device has an input end and an output end with different transmission ratios.

Compared with the prior art, the beneficial effects of the present invention are:

1) Through the structure of the cylindrical gear and the plane helical gear meshing transmission, the requirement of a large transmission ratio is realized, and the transmission ratio is equal to the number of teeth of the cylindrical gear. This structure greatly simplifies the overall structure of the transmission system and reduces the cost;

2) Due to the disc structure, multiple outputs can be realized, and by changing the number of teeth, each output end can have different transmission ratios, which can meet the application occasions of different speed and power requirements;

3) A separate chainring structure is adopted, that is, the helical teeth and the base plate adopt an assembled structure, that is, when the helical teeth are damaged, there is no need to replace the entire chainring. Reduce maintenance difficulty and cost.

Description of drawings

Fig. 1 is the structural representation of helical disc gear transmission;

Figure 2 is an exploded view of the helical disk gear transmission;

Fig. 3 is the structural representation of helical toothed disc;

Fig. 4 is a top view of the helical gear plate.

Markings in the figure: 1. The second upper cover; 2. The first screw; 3. The pin; 4. The fifth bearing; 5. The second gear; 6. The second output shaft; 7. The sixth bearing; A bearing; 9, the third bearing; 10, the input shaft; 11, the second bearing; 12, the lower case cover; 13, the first gear; 14, the first output shaft; 15, the first upper case cover; 16, the first Four bearings; 17, the second screw; 18, base plate; 19, helical teeth; 19.1, entering the meshing end; 19.2, helical track; 19.3, exiting the meshing end; 20, bearing seat F; 21, bearing seat E; 22, Bearing seat B; 23, bearing seat D; 24, bearing seat A; 25, bearing seat C.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings.

Figure 1 is the assembly diagram of the helical disk gear transmission device. It can be seen from the figure that the gear box is mainly composed of the input shaft 6, the lower case cover 12, the second upper case cover 1 and the first upper case cover 15, the second output The shaft 6, the first output shaft 14, and the internal transmission system are composed. The second upper case cover 1 and the first upper case cover 15 are assembled together by the first screws 2 and the pins 3 . The second upper case cover 1 and the first upper case cover 15 are assembled together with the lower case cover 12 by the second screws 17 .

FIG. 2 is an exploded view of the helical disc gear transmission. It can be seen from the figure that the input shaft 10 is fixedly installed with the base plate 18 , and is positioned and installed on the casing through the first bearing 8 and the second bearing 11 . The second bearing 11 is installed in the bearing seat F20 of the lower case cover 12 , and the first bearing 8 is installed in the bearing seat E21 of the second upper case cover 1 and the first upper case cover 15 . The first output shaft 14 is fixedly installed with the first gear 13, and is assembled with the second upper case cover 1 and the first upper case cover 15 through the third bearing 9 and the fourth bearing 16, wherein the third bearing 9 is installed In the bearing seat B22 of the second upper case cover 1 , the fourth bearing 16 is transferred to the bearing seat D23 of the first upper case cover 15 . Similarly, the second output shaft 6 is fixedly assembled with the second gear 5, and is assembled with the second upper case cover 1 and the first upper case cover 15 through the fifth bearing 4 and the sixth bearing 7, wherein the fifth The bearing 4 is installed in the bearing seat A24 of the second upper case cover 1 , and the sixth bearing 7 is transferred to the bearing seat C25 of the first upper case cover 15 .

After installation, the second gear 5 and the first gear 13 are meshed with the helical teeth 19 in the helical gear plate.

Figure 3-4 is a structural diagram of the helical toothed plate. It can be seen from the figure that the spiral tooth 19 in the spiral toothed plate includes an entering meshing end 19.1, a spiral track 19.2, and an exiting meshing end 19.3. The spiral tooth 19 has only one circle. After the second gear 5 or the first gear 13 enters the meshing end, the helical teeth 19 will drive the gears to rotate. After the toothed plate rotates one round, the current meshing teeth of the second gear 5 and the first gear 13 will be at the exit meshing end of the helical teeth 19. Out of meshing, the next tooth profile of the second gear 5 and the first gear 13 starts to mesh and drive through the meshing end of the helical tooth 19, that is, the helical gear plate completes one rotation, and the second gear 5 and the first gear 13 rotate. The angle of a tooth. Through the structure of meshing transmission between the cylindrical gear and the plane helical teeth, the requirement of large transmission ratio is achieved, and the transmission ratio is equal to the number of teeth of the cylindrical gear. This structure greatly simplifies the overall structure of the transmission system and reduces the cost.

Since the helical disk gear transmission in this embodiment adopts a disk structure, it can realize multiple outputs, and by changing the number of teeth, each output end can have different transmission ratios, which can meet the application occasions with different speed and power requirements. . The output characteristics of different gear ratios are as follows:

(1) Assuming that the number of teeth of the second gear 5 and the first gear 13 is the same, and is n, the transmission of the transmission system is n, that is, the helical gear plate rotates n turns, and the output shaft rotates 1 turn. At this time, the two output ends of the system have the same transmission ratio;

(2) Assuming that the number of teeth of the second gear 5 is x, and the number of teeth of the first gear 13 is y, then the system has two different transmission ratios, which are x and y respectively. This design can accommodate external devices with different speed ratios and power requirements.

The power transmission route of the system is: (1) the external power is transmitted to the helical gear plate via the input shaft 10; (2) the rotation of the helical tooth 19 drives the second gear 5 and the first gear 13 to rotate; (3) the second gear 5 and The first gear 13 realizes two-way power output through the second output shaft 6 and the first output shaft 14 .

It should be noted that due to the structural characteristics of the gear box, the helical tooth 19 is usually the most recently damaged during the gear transmission process. Therefore, the helical tooth 19 and the base plate 8 adopt a separate assembly structure, that is, the helical tooth 19 passes through the screw. It is fixed with the base plate 11 by other methods to form a helical toothed plate, and this structure can realize that the helical tooth 19 can be quickly replaced when it is damaged. In this embodiment, a separate toothed plate structure is adopted, that is, the helical tooth and the base plate adopt an assembled structure. When the spiral tooth is damaged, the entire toothed plate does not need to be replaced, and the product can be updated and maintained only by replacing the spiral tooth. Reduce maintenance difficulty and cost.

In addition, the present embodiment adopts a two-way output structure, however, the design requirements for outputs with different transmission ratios may not be limited to this, and the ability to achieve one input, multiple channels of different transmission ratios and power outputs.

To sum up, it can be seen that the helical disc gear transmission device of the present invention solves the technical requirement that a large transmission ratio can be achieved by using a simple transmission structure, and solves the problem of scrapping the entire gear due to damage to the tooth shape in the traditional gear transmission by using the separate structure. It solves the problem that the traditional gearbox only has a certain and unique transmission ratio, and realizes the ability of one input end and output end with different transmission ratios.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. A helical disk gear transmission device is characterized in that, comprising a base plate and several gears, the middle part of the base plate is fixedly mounted with an input shaft for driving the base plate to rotate, and the base plate is provided with a helical tooth , the helical tooth is a circle of plane helical ring structure, which includes an entry meshing end, a helical track, and an exit meshing end, each gear is fixedly installed with an output shaft, and each gear is meshed with the helical teeth, and For each revolution of the helical teeth, each gear rotates by the angle of one tooth. 2 . The helical disk gear transmission device according to claim 1 , wherein the base plate and the plurality of gears are installed in a box body, and the box body includes a lower box cover and an upper box cover. 3 . 3. A helical disk gear transmission device according to claim 2, wherein a bearing seat F is provided on the lower case cover, a bearing seat E is provided on the upper case cover, and the input shaft The first bearing and the second bearing are positioned and installed in the housing, wherein the second bearing is installed in the bearing seat F, and the first bearing is installed in the bearing seat E. 4 . The helical disk gear transmission device according to claim 2 , wherein when the output shaft includes two output shafts, namely a first output shaft and a second output shaft, the upper case cover It includes a first upper box cover and a second upper box cover that are symmetrically buckled. The first upper box cover is provided with a bearing seat C and a bearing seat D, and the second upper box cover is provided with a bearing seat A and a bearing seat B. The first output shaft is assembled with the bearing seat B through the third bearing, with the bearing seat D through the fourth bearing, the second output shaft is assembled with the bearing seat A through the fifth bearing, and through the sixth bearing and the bearing seat C assembled together. 5 . The helical disk gear transmission device according to claim 1 , wherein the helical teeth and the base plate adopt a separate assembly structure. 6 . 6 . The helical disk gear transmission device according to claim 5 , wherein the helical teeth are fixed with the base plate by screws to form a helical toothed disk. 7 . 7 . The helical disk gear transmission device according to claim 1 , wherein the number of teeth of each gear is the same, and the entire device has several output ends with the same transmission ratio. 8 . 8. A helical disk gear transmission device according to claim 1, characterized in that, several gears have at least two different numbers of teeth, and the whole device has an input end and an output end with different transmission ratios.

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