CN114877027A - Spiral disk type gear transmission device - Google Patents

Abstract

The invention discloses a spiral disc type gear transmission device which comprises a base disc and a plurality of gears, wherein an input shaft for driving the base disc to rotate is fixedly arranged in the middle of the base disc, spiral teeth are arranged on the base disc, each spiral tooth is of a circle of plane spiral annular structure and comprises an entering meshing end, a spiral track and an exiting meshing end, an output shaft is fixedly arranged on each gear, each gear is meshed with the spiral teeth, and each gear rotates by one tooth angle when each spiral tooth rotates by one circle. The spiral disk type gear transmission device provided by the invention solves the technical requirement that a large transmission ratio can be realized by using a simple transmission structure, solves the problem that the whole gear is scrapped due to tooth profile damage in the traditional gear transmission by using a separated structure, solves the problem that the traditional gear box only has a definite and unique transmission ratio, and realizes the capabilities of one input end and output ends with different transmission ratios.

Description

Spiral disk type gear transmission device

Technical Field

The invention belongs to the technical field of gear transmission systems, and particularly relates to a gear transmission device with a large transmission ratio and multi-output.

Background

The gear transmission system is widely applied to industrial products, mainly comprises a one-stage or multi-stage cylindrical gear transmission system, a worm gear transmission system, a one-stage or multi-stage planetary gear transmission system and the like, and can realize the effects of different transmission ratios and transmission powers. However, in general, it is difficult to achieve synchronization with a large transmission ratio and achieve a simple structure. In addition, the gear is a high-precision part and is high in value, and once the gear teeth are glued or the tooth roots are broken, the whole gear is in a complete scrapped state.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a spiral disk type gear transmission device with a large transmission ratio and multi-output.

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

the utility model provides a spiral disk gear transmission, includes basal disc, a plurality of gear, the middle part fixed mounting of basal disc has the input shaft that is used for driving the basal disc rotation, be provided with the helical tooth on the basal disc, the helical tooth is round plane spiral loop configuration, and it is including getting into meshing end, spiral track, withdraw from the meshing end, and equal fixed mounting has the output shaft on every gear, every gear all with the helical tooth meshing, and every rotatory round of helical tooth, the angle of every gear all rotation tooth.

Further, the basal disc and the plurality of gears are arranged in the box body, and the box body comprises a lower box cover and an upper box cover.

Furthermore, a bearing seat F is arranged on the lower box cover, a bearing seat E is arranged on the upper box cover, the input shaft is positioned and installed in the box body through a first bearing and a second bearing, the second bearing is installed in the bearing seat F, and the first bearing is installed in the bearing seat 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 first upper case cover and a second upper case cover which are symmetrically buckled, a bearing seat C and a bearing seat D are arranged on the first upper case cover, a bearing seat a and a bearing seat B are arranged on the second upper case cover, the first output shaft is assembled with the bearing seat B through a third bearing and the bearing seat D through a fourth bearing, and the second output shaft is assembled with the bearing seat a through a fifth bearing and the bearing seat C through a sixth bearing.

Furthermore, the spiral teeth and the base plate adopt a separated assembly structure.

Furthermore, the spiral teeth are fixed with the base plate through screws to form a spiral fluted disc.

Furthermore, the number of teeth of each gear is the same, and the whole device is provided with a plurality of output ends with the same transmission ratio.

Further, the plurality of gears have at least two different numbers of teeth, and the entire device has an input end and an output end with different gear ratios.

Compared with the prior art, the invention has the beneficial effects that:

1) the requirement of large transmission ratio is realized through the structure that the cylindrical gear and the planar spiral gear are in meshing transmission, and the transmission ratio is equal to the number of teeth of the cylindrical gear, so that the structure greatly simplifies the whole structure of a transmission system and reduces the cost;

2) due to the adoption of the disc type structure, multi-path output can be realized, and different transmission ratios of output ends of each path can be realized by changing the number of teeth, so that application occasions with different speed and power requirements can be met;

3) the separated fluted disc structure is adopted, namely the helical teeth and the basal disc adopt an assembled structure, namely when the helical teeth are damaged, the whole fluted disc does not need to be replaced, the product can be updated and maintained only by replacing the helical teeth, and the maintenance difficulty and the cost are obviously reduced.

Drawings

FIG. 1 is a schematic structural view of a helical disk gear transmission;

FIG. 2 is an exploded view of a helical disk gear assembly;

FIG. 3 is a schematic structural view of a spiral fluted disc;

FIG. 4 is a top view of a helical toothed disc.

The labels in the figure are: 1. a second upper cover; 2. a first screw; 3. a pin; 4. a fifth bearing; 5. a second gear; 6. a second output shaft; 7. a sixth bearing; 8. a first bearing; 9. a third bearing; 10. an input shaft; 11. a second bearing; 12. a lower box cover; 13. a first gear; 14. a first output shaft; 15. a first upper case cover; 16. a fourth bearing; 17. a second screw; 18. a base plate; 19. helical teeth; 19.1, entering the meshing end; 19.2, a spiral track; 19.3, withdrawing the meshing end; 20. a bearing seat F; 21. a bearing seat E; 22. a bearing seat B; 23. a bearing seat D; 24. a bearing seat A; 25. and a bearing seat C.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is an assembly diagram of a spiral disk type gear transmission device, and it can be seen that the gear box mainly comprises an input shaft 6, a lower box cover 12, a second upper box cover 1 and a first upper box cover 15, a second output shaft 6 and a first output shaft 14, and an internal transmission system. The second upper cover 1 and the first upper cover 15 are assembled together by the first screws 2 and the pins 3. The second upper case lid 1 and the first upper case lid 15 are each assembled with the lower case lid 12 by second screws 17.

Fig. 2 is an exploded view of a helical disk gear transmission, and it can be seen that the input shaft 10 is fixedly mounted with the base plate 18 and is positioned and mounted on the housing by the first bearing 8 and the second bearing 11. The second bearing 11 is mounted in a bearing seat F20 of the lower cover 12 and the first bearing 8 is mounted in a bearing seat E21 of the second upper cover 1 and the first upper cover 15. The first output shaft 14 is fixedly mounted with the first gear 13 and is assembled with the second upper case cover 1 and the first upper case cover 15 through a third bearing 9 and a fourth bearing 16, wherein the third bearing 9 is mounted in a bearing seat B22 of the second upper case cover 1, and the fourth bearing 16 is transferred in a 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 a fifth bearing 4 and a sixth bearing 7, wherein the fifth bearing 4 is installed in a bearing seat a24 of the second upper case cover 1, and the sixth bearing 7 is rotatably assembled in a bearing seat C25 of the first upper case cover 15.

After the installation is finished, the second gear 5 and the first gear 13 are meshed with the spiral teeth 19 in the spiral fluted disc, and the tooth shapes of the second gear 5 and the first gear 13 need to be designed and manufactured in a matching way with the spiral teeth 19.

Fig. 3-4 are structural diagrams of a spiral fluted disc, as can be seen, a spiral tooth 19 in the spiral fluted disc includes an engaging end 19.1, a spiral track 19.2 and an engaging end 19.3, the spiral tooth 19 has only one turn, when the second gear 5 or the first gear 13 enters the engaging end, the spiral tooth 19 drives the gear to rotate, after one turn of the fluted disc rotates, the currently engaged tooth of the second gear 5 and the first gear 13 exits the engagement at the engaging end of the spiral tooth 19, the next tooth profile of the second gear 5 and the first gear 13 starts to perform meshing transmission through the engaging end of the spiral tooth 19, that is, the spiral fluted disc completes one turn of the spiral fluted disc, and the second gear 5 and the first gear 13 rotate by an angle of one tooth. Through the structure that cylindrical gear and plane helical tooth meshing transmission, realized the requirement of big drive ratio, and drive ratio equals cylindrical gear's the number of teeth, this structure is very big has simplified transmission system's overall structure, the cost is reduced.

The spiral disk type gear transmission device of the embodiment can realize multi-path output due to the adoption of a disk type structure, and can realize that each output end has different transmission ratios by changing the number of teeth, thereby being capable of meeting application occasions with different speed and power requirements. The characteristics of the different ratio outputs 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, i.e. the spiral fluted disc rotates n times, and the output shaft rotates 1 time. The two outputs 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, the system now has two different gear ratios, x and y respectively. This design can accommodate peripherals with different speed ratios and power requirements.

The power transmission route of the system is as follows: (1) external power is transmitted to the spiral fluted disc through the input shaft 10; (2) the rotation of the helical teeth 19 drives the second gear 5 and the first gear 13 in rotation; (3) the second gear 5 and the first gear 13 realize 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 spiral teeth 19 are usually the latest damaged spiral teeth 19 in the gear transmission process, so the spiral teeth 19 and the base plate 8 adopt a separate assembly structure, that is, the spiral teeth 19 are fixed with the base plate 11 by means of screws or the like to form a spiral fluted disc, and the structure can realize that the spiral teeth 19 can be replaced quickly when the damage occurs. This embodiment is through adopting disconnect-type fluted disc structure, and helical tooth and basal disc adopt the assembled structure promptly, when the helical tooth produced the destruction, need not to change whole fluted disc, only need change the helical tooth and can realize the renewal and the maintenance of product, are showing and are reducing the maintenance degree of difficulty and cost.

In addition, the present embodiment adopts a two-way output structure, however, the design requirements for different transmission ratio outputs are not limited thereto, and the capability of one-way input, multiple-way different transmission ratios and power output is realized.

In conclusion, the spiral disc type gear transmission device disclosed by the invention solves the technical requirement that a large transmission ratio can be realized by using a simple transmission structure, solves the problem that the whole gear is scrapped due to tooth profile damage in the traditional gear transmission by using a separated structure, solves the problem that only a certain and unique transmission ratio exists in a traditional gear box, and realizes the capabilities of one input end and different transmission ratio output ends.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a spiral disk gear transmission, its characterized in that includes basal disc, a plurality of gear, the middle part fixed mounting of basal disc has the input shaft that is used for driving the basal disc rotatory, be provided with the helical tooth on the basal disc, the helical tooth is round plane spiral ring structure, and it is including getting into meshing end, spiral track, withdraw from the meshing end, and equal fixed mounting has an output shaft on every gear, every gear all with the helical tooth meshing, and every rotatory round of helical tooth, the angle that every gear all rotated a tooth.

2. A spiral disk gear transmission as claimed in claim 1, wherein the base disk and the plurality of gears are mounted in a housing, the housing including a lower cover and an upper cover.

3. A spiral disk gear transmission according to claim 2, wherein the lower casing cover is provided with a bearing seat F, the upper casing cover is provided with a bearing seat E, and the input shaft is positioned and mounted in the casing through a first bearing and a second bearing, wherein the second bearing is mounted in the bearing seat F and the first bearing is mounted 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, i.e., a first output shaft and a second output shaft, the upper case cover includes a first upper case cover and a second upper case cover which are buckled symmetrically left and right, the first upper case cover is provided with a bearing seat C and a bearing seat D, the second upper case 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 a third bearing and with the bearing seat D through a fourth bearing, and the second output shaft is assembled with the bearing seat a through a fifth bearing and with the bearing seat C through a sixth bearing.

5. A spiral disk gear system as claimed in claim 1, wherein the helical teeth and the base disk are of a split-mount configuration.

6. A spiral disk gear transmission according to claim 5 wherein the spiral teeth are secured to the base disk by screws to form a spiral toothed disk.

7. A spiral disk gear transmission as claimed in claim 1, wherein each gear has the same number of teeth, and the entire transmission has several outputs of the same transmission ratio.

8. A spiral gear transmission as claimed in claim 1 wherein the plurality of gears have at least two different numbers of teeth, the overall transmission having an input and outputs of different ratios.

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