CN213017594U

CN213017594U - Double-shaft high-low speed input worm gear box

Info

Publication number: CN213017594U
Application number: CN202021728914.7U
Authority: CN
Inventors: 林琴蕾
Original assignee: Wenzhou Weibo Transmission Technology Co ltd
Current assignee: Wenzhou Weibo Transmission Technology Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-04-20
Anticipated expiration: 2030-08-18

Abstract

The utility model discloses a biax high-low speed input worm-gear case, including the worm wheel box, be equipped with the worm wheel in the worm wheel box and with worm wheel meshed's worm, it is provided with many input shafts, every to rotate on the worm wheel box all be equipped with between input shaft and the worm and can drive worm pivoted drive assembly, every drive ratio between the drive assembly is different. The problem of when the valve is opened, the light-load operation time is greatly reduced and the waste of time and manpower is reduced is solved.

Description

Double-shaft high-low speed input worm gear box

Technical Field

The utility model relates to a worm gear case technical field, more specifically say, it relates to a high low-speed valve worm gear case of biax.

Background

The valve worm gear box is an actuating mechanism for opening and closing the valve at present and consists of a worm gear, a shaft, a bearing, a box body and the like.

When a customer opens a large-diameter valve, the number of turns of a hand wheel is too many, and time and labor are wasted when the valve is opened and runs under light load.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high low-speed input worm gear case of biax that it is more convenient to open the valve.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a high low-speed input worm-gear case of biax, includes the worm-gear box body, be equipped with the worm wheel in the worm-gear box body and with worm wheel meshing's worm, characterized by: the worm gear box body is provided with a plurality of input shafts in a rotating mode, each input shaft and the worm are provided with transmission assemblies capable of driving the worm to rotate, and transmission ratios of the transmission assemblies are different.

Through adopting above-mentioned technical scheme, the too much condition of light load operation number of turns appears when avoiding the valve to open.

The utility model discloses further set up to: the worm gear box is characterized in that the number of the input shafts is two, the two transmission assemblies correspond to the two input shafts one to one, a transmission shaft is rotatably arranged in the worm gear box, and the transmission shaft and the worm form linkage.

By adopting the technical scheme, different input shafts can drive the worm to rotate.

The utility model discloses further set up to: two the input shaft is high-speed input shaft and low-speed input shaft, two respectively transmission assembly is first transmission, second transmission respectively, first transmission includes along with transmission shaft pivoted gear wheel and along with high-speed input shaft rotate and with gear wheel engagement's first gear, the second transmission includes along with transmission shaft pivoted pinion and along with low-speed input shaft rotate and with pinion engagement's second gear, gear wheel and pinion fixed connection and syntropy rotate.

By adopting the technical scheme, the transmission ratio of the high input shaft and the low input shaft is different, and the worm wheel is utilized to a greater extent.

The utility model discloses further set up to: the transmission assembly comprises a speed reduction assembly arranged between a transmission shaft and a worm, the speed reduction assembly comprises an inner gear ring, a planet carrier and a driving gear arranged on a rotating shaft, a plurality of driven gears respectively meshed with the inner gear ring are arranged in the inner gear ring, the driving gear is meshed with each driven gear simultaneously, and the planet carrier is fixedly connected with the worm and simultaneously fixes each driven gear.

Through adopting above-mentioned technical scheme, better driving force uses the worm wheel more steady operation.

The utility model discloses further set up to: the driven gear is provided with a connecting plate which is matched with the planet carrier to limit the driven gear to be separated from the planet carrier, and the connecting plate is provided with a through hole for the rotating shaft to pass through.

Through adopting above-mentioned technical scheme, guarantee that the operation of speed reduction subassembly is stable.

The utility model discloses further set up to: the worm wheel box is internally provided with a plurality of limiting rods which limit the rotation angle of the worm wheel and are perpendicular to the screw rod, the limiting rods are in threaded connection with the worm wheel box, and the worm wheel is in a semi-arc shape, and the single-side rotation angle of the worm wheel is additionally adjusted within the range of plus or minus 1 ten degrees at ninety degrees.

By adopting the technical scheme, the rotation angle of the worm is limited while the worm is protected.

The utility model discloses further set up to: the one end that transmission shaft and worm are connected is equipped with the recess that supplies the transmission shaft to insert the cooperation, the cover is equipped with first bearing on the transmission shaft, first bearing is located the recess.

Through adopting above-mentioned technical scheme, simple structure makes the power of transmission shaft to the worm more stable.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

fig. 2 is an exploded view of the transmission assembly.

In the figure: 1. a worm gear box body; 11. a limiting rod; 12. a drive shaft; 2. a worm gear; 21. a worm; 3. an input shaft; 31. a high speed input shaft; 32. a low speed input shaft; 4. a transmission assembly; 41. a first transmission; 42. a second transmission; 43. a bull gear; 44. a first gear; 45. a pinion gear; 46. a second gear; 5. a speed reduction assembly; 51. an inner gear ring; 52. a planet carrier; 53. a driving gear; 54. a driven gear; 6. a connecting plate; 61. a through hole; 7. a groove; 71. a first bearing.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 2.

The utility model provides a high low-speed input worm-gear case of biax, includes worm-gear box 1, is equipped with worm wheel 2 in the worm-gear box 1 and with worm wheel 2 meshed worm 21, characterized by: the worm gear box body 1 is provided with a plurality of input shafts 3 in a rotating mode, a transmission assembly 4 capable of driving the worm 21 to rotate is arranged between each input shaft 3 and the worm 21, and the transmission ratio between each transmission assembly 4 is different.

The number of the input shafts 3 is two, the two transmission assemblies 4 correspond to the two input shafts 3 one by one, the transmission shafts 12 are rotatably arranged in the worm gear box body 1, and the transmission shafts 12 and the worm 21 form linkage.

The two input shafts 3 are respectively a high-speed input shaft 31 and a low-speed input shaft 32, the two transmission assemblies 4 are respectively a first transmission 41 and a second transmission 42, the first transmission 41 comprises a large gear 43 rotating along with the transmission shaft 12 and a first gear 44 rotating along with the high-speed input shaft 3 and meshed with the large gear 43, the second transmission 42 comprises a small gear 45 rotating along with the transmission shaft 12 and a second gear 46 rotating along with the low-speed input shaft 32 and meshed with the small gear 45, and the large gear 43 and the small gear 45 are fixedly connected and rotate in the same direction.

The transmission assembly 4 comprises a speed reduction assembly 5 arranged between the transmission shaft 12 and the worm, the speed reduction assembly 5 comprises an inner gear ring 51, a planet carrier 52 and a driving gear 54 arranged on a rotating shaft, three driven gears 54 respectively meshed with the inner gear ring 51 are arranged in the inner gear ring 51, the driving gear 53 is simultaneously meshed with the three driven gears 54, and the planet carrier 52 is fixedly connected with the worm 21 and simultaneously fixes the three driven gears 54.

The driven gear 54 is provided with a connecting plate 6 which is matched with the planet carrier 52 to limit the driven gear 54 to be separated, and the connecting plate 6 is provided with a through hole 61 for the rotating shaft 35 to pass through.

The worm gear box is internally provided with a plurality of limiting rods 11 which limit the rotation angle of the worm gear 2 and are perpendicular to the screw rod, the limiting rods 11 are in threaded connection with the worm gear box, and the worm gear is in a semi-arc shape and the single-side rotation angle of the worm gear is additionally adjusted within the range of plus or minus 1 ten degrees from zero to ninety degrees.

One end of the transmission shaft 12 connected with the worm 21 is provided with a groove 7 for the insertion of the transmission shaft 12, the transmission shaft 12 is sleeved with a first bearing 71, and the first bearing 71 is positioned in the groove 7.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a high low-speed input worm-gear case of biax, includes worm-gear box body (1), be equipped with in worm-gear box body (1) worm wheel (2) and with worm wheel (2) meshed worm (21), characterized by: the worm gear box body (1) is provided with a plurality of input shafts (3) in a rotating mode, each input shaft (3) and the worm (21) are provided with transmission assemblies (4) capable of driving the worm (21) to rotate, and each transmission ratio between the transmission assemblies (4) is different.

2. The twin-shaft high-low speed input worm gear case as set forth in claim 1, wherein: the worm gear box is characterized in that the number of the input shafts (3) is two, the transmission assemblies (4) correspond to the two input shafts (3) one by one, transmission shafts (12) are arranged in the worm gear box body (1) in a rotating mode, and the transmission shafts (12) are linked with the worm (21) through a planetary structure.

3. The twin-shaft high-low speed input worm gear case as set forth in claim 2, wherein: two input shaft (3) are high-speed input shaft (31) and low-speed input shaft (32), two respectively transmission assembly (4) are first transmission (41), second transmission (42) respectively, first transmission (41) include rotate and with gear wheel (43) first gear (44) of meshing along with transmission shaft (12) pivoted gear wheel (43) and along with high-speed input shaft (3), second transmission (42) include rotate and with pinion (45) second gear (46) of meshing along with transmission shaft (12) pivoted pinion (45) and along with low-speed input shaft (32), gear wheel (43) and pinion (45) fixed connection and syntropy rotate.

4. The twin-shaft high-low speed input worm gear case as set forth in claim 2, wherein: the transmission assembly (4) comprises a speed reduction assembly (5) arranged between a transmission shaft (12) and a worm, the speed reduction assembly (5) comprises an inner gear ring (51), a planet carrier (52) and a driving gear (53) arranged on a rotating shaft, a plurality of driven gears (54) respectively meshed with the inner gear ring (51) are arranged in the inner gear ring (51), the driving gear (53) is meshed with each driven gear (54), and the planet carrier (52) is fixedly connected with the worm (21) and is fixed with each driven gear (54).

5. The twin-shaft high-low speed input worm gear case as set forth in claim 4, wherein: the driven gear (54) is provided with a connecting plate (6) which is matched with the planet carrier (52) to limit the driven gear (54) to be separated, and the connecting plate (6) is provided with a through hole (61) for the rotating shaft (35) to pass through.

6. The twin-shaft high-low speed input worm gear case as set forth in claim 1, wherein: the worm gear box is internally provided with a plurality of limiting rods (11) which limit the rotation angle of the worm gear (2) and are perpendicular to the screw rod, the limiting rods (11) are in threaded connection with the worm gear box, and the worm gear is in a semi-arc shape and has a worm gear single-side rotation angle which is additionally adjusted within a range of plus or minus 1 ten degrees at ninety degrees.

7. The twin-shaft high-low speed input worm gear case as set forth in claim 2, wherein: one end that transmission shaft (12) and worm (21) are connected is equipped with recess (7) that confession transmission shaft (12) were inserted and are joined in marriage, the cover is equipped with first bearing (71) on transmission shaft (12), first bearing (71) are located recess (7).