CN113483063A

CN113483063A - Gear transmission structure

Info

Publication number: CN113483063A
Application number: CN202110897883.0A
Authority: CN
Inventors: 何青松; 汤云; 刘后祥; 王小亮; 万成; 任亚杰
Original assignee: Chongqing Gearbox Co Ltd
Current assignee: Chongqing Gearbox Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-10-08

Abstract

The invention relates to a gear transmission structure, which comprises an input shaft, an auxiliary input shaft, a first intermediate shaft, a first conical gear, a second conical gear and a third conical gear, wherein the third conical gear is sleeved on the first intermediate shaft through a bearing, the first conical gear and the second conical gear are symmetrically arranged on two sides of the first intermediate shaft, the first conical gear and the second conical gear are both meshed with the third conical gear, the input shaft and the auxiliary input shaft are respectively used for driving the first conical gear and the second conical gear to rotate so as to drive the first intermediate shaft to rotate along a central shaft of the first conical gear, the invention adjusts the rotating speed of the first conical gear by adjusting the rotating speed of the auxiliary input shaft, further adjusts the rotating speed of the first intermediate shaft, does not stop, realizes stepless speed regulation in the operating process of a gear box, the production efficiency is improved.

Description

Gear transmission structure

Technical Field

The invention relates to the technical field of gear transmission, in particular to a gear transmission structure.

Background

With the wide application of gear transmission in various industries, the traditional gear transmission has constant speed ratio and can not completely meet the use requirement of production on large-range output torque. At present, a high-power gearbox is generally designed to have a two-gear speed change function, speed change is completed by a gear shifting fork mechanism, and a gear shifting process can be completed only at a low speed or in a stop state. Therefore, although the transmission range of the output torque is expanded to a certain extent, the structure has certain limitation because the stepless speed change under the operation state cannot be realized, and the use requirements of high efficiency and high reliability of the gearbox on the production site cannot be completely met, so that the whole structure of the gearbox needs to be further improved and designed.

Disclosure of Invention

The invention aims to: aiming at the problem that the gear shifting and speed changing can only be completed when the existing high-power gear box is in a low-speed or shutdown state, and the production efficiency is influenced, a gear transmission structure is provided.

In order to achieve the purpose, the invention adopts the technical scheme that:

a gear transmission structure comprises an input shaft, an auxiliary input shaft, a first intermediate shaft, a first conical gear, a second conical gear and a third conical gear, wherein the third conical gear is sleeved on the first intermediate shaft through a bearing, the first conical gear and the second conical gear are symmetrically arranged on two sides of the first intermediate shaft, the first conical gear and the second conical gear are meshed with the third conical gear, and the input shaft and the auxiliary input shaft are respectively used for driving the first conical gear and the second conical gear to rotate so as to drive the first intermediate shaft to rotate along an OP (operational center) shaft of the first conical gear.

By adopting the technical scheme, the rotating speed of the first conical gear is adjusted by adjusting the rotating speed of the auxiliary input shaft, and then the rotating speed of the first intermediate shaft is adjusted under the combined action of the first conical gear and the second conical gear.

Furthermore, the bevel gear assembly further comprises a fourth bevel gear, the fourth bevel gear is sleeved on the first intermediate shaft through a bearing, and the first bevel gear and the second bevel gear are meshed with the third bevel gear and the fourth bevel gear simultaneously, so that meshing transmission is more stable and reliable, and the mass center of the first intermediate shaft is prevented from deviating from the rotating shaft when rotating.

Further, still include first axle and second axle, the fixed cover of first conical gear is in on the first axle, the input shaft with the first axle passes through gear drive and connects, just the transmission is connected and is made the rotational speed of first axle is less than the input shaft, the fixed cover of second conical gear is in on the second axle, supplementary input shaft with the second axle passes through gear drive and connects, just the transmission is connected and is made the rotational speed of second axle is less than supplementary input shaft, increases input torque, guarantees to finally reach great output torque.

The first shell is wrapped on the outer side of the first intermediate shaft and fixedly connected with the end portion of the first intermediate shaft, the second shell is wrapped on the outer side of the second intermediate shaft and fixedly connected with the end portion of the second intermediate shaft, the first shell is connected with the second shell through gear transmission, the first shell can transmit the rotation of the first intermediate shaft to the second shell, the second intermediate shaft is driven to rotate, and the structure transmits the rotation of the first intermediate shaft with variable rotation speed to the second intermediate shaft, so that the second intermediate shaft can also rotate at variable speed.

Furthermore, the power input device further comprises a fifth conical gear, a seventh conical gear and a third shaft, wherein the fifth conical gear is sleeved on the second intermediate shaft through a bearing, the seventh conical gear is fixedly sleeved on the third shaft, the fifth conical gear is meshed with the seventh conical gear, the rotation of the second intermediate shaft can be transmitted to the third shaft, and therefore the power input of the first input shaft and the power input of the second input shaft can be output to the third shaft.

Further, still include fourth axle and eighth conical gear, the fixed cup of eighth conical gear is in on the fourth axle, eighth conical gear with seventh conical gear axle symmetry set up in the both sides of second jackshaft, fifth conical gear with eighth conical gear meshes mutually, guarantees that output torque is equallyd divide for third axle and fourth axle have avoided the uneven phenomenon of carrying of transmission moment of torsion.

Furthermore, the gear transmission device also comprises a sixth conical gear, wherein the sixth conical gear is sleeved on the second intermediate shaft through a bearing, and the seventh conical gear and the eighth conical gear are simultaneously meshed with the fifth conical gear and the sixth conical gear, so that the meshing transmission is more stable and reliable, and the mass center is prevented from deviating from the rotating shaft when the second intermediate shaft rotates.

The invention has the beneficial effects that: the stepless speed regulation can be realized in the running process of the gear box without stopping and shifting, so that the production efficiency is improved; the double-input shaft is arranged, and the two motors with smaller power are adopted for converging the input power, so that the cost is saved compared with the prior art in which a high-power motor with higher cost is adopted; the double-output shaft is arranged, the requirement of the double-output shaft in production and use is met, the transmission structure can evenly distribute the torques of the two output ends, and the phenomenon of uneven load of the transmission torques is avoided.

Description of the drawings:

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

The labels in the figure are: 1-input shaft, 2-first helical gear, 3-second helical gear, 4-first shaft, 5-fifth bearing housing, 6-first bearing housing, 7-fifth helical gear, 8-sixth helical gear, 9-plain key, 10-third shaft, 11-ninth bevel gear, 12-eleventh bevel gear, 13-first output shaft, 14-third bearing housing, 15-seventh bevel gear, 16-second housing, 17-second intermediate shaft, 18-fifth bevel gear, 19-sixth bevel gear, 20-eighth bevel gear, 21-second output shaft, 22-twelfth bevel gear, 23-tenth bevel gear, 24-fourth shaft, 25-sixth bearing housing, 26-fourth bearing housing, 27-fourth conical gear, 28-second shaft, 29-fourth helical gear, 30-auxiliary input shaft, 31-third helical gear, 32-second bearing sleeve, 33-second conical gear, 34-third conical gear, 35-first intermediate shaft, 36-first housing, 37-first conical gear.

Detailed Description

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

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present embodiment provides a gear transmission structure, as shown in fig. 1, an input shaft 1 rotates and drives a first shaft 4 to rotate through a first helical gear 2 and a second helical gear 3 which are engaged with each other, an auxiliary input shaft 30 rotates and drives a second shaft 28 to rotate through a third helical gear 31 and a fourth helical gear 29 which are engaged with each other, the number of teeth of the first helical gear 2 is less than that of the second helical gear 3, the number of teeth of the third helical gear 31 is less than that of the fourth helical gear 29, the axial lines of the input shaft 1 and the auxiliary input shaft 30 are overlapped, and the rotation speeds thereof may be set to be different; the axial leads of the first shaft 4 and the second shaft 28 are coincident and are sleeved in a fifth bearing sleeve 5 through bearings, a first conical gear 37 is arranged at the right end of the first shaft 4, the first conical gear 37 is connected with the first shaft 4 through a flat key, a second conical gear 33 is arranged at the left end of the second shaft 28, and the second conical gear 33 is connected with the second shaft 28 through a flat key; the third conical gear 34 and the fourth conical gear 27 are respectively sleeved at the upper end and the lower end of the first intermediate shaft 35 through bearings, the first conical gear 37 is simultaneously in meshing transmission with the third conical gear 34 and the fourth conical gear 27, the second conical gear 33 is also simultaneously in meshing transmission with the third conical gear 34 and the fourth conical gear 27, the first intermediate shaft 35 rotates along the axial lead OP under the simultaneous action of the first conical gear 37 and the second conical gear 33, and the first housing 36, the first intermediate shaft 35, the first bearing sleeve 6 and the second bearing sleeve 32 are fixedly connected through bolts, so that the first bearing sleeve 6 and the second bearing sleeve 32 both rotate along the axial lead, and further the fifth helical gear 7 fixedly connected with the first bearing sleeve 6 through a flat key is driven to rotate.

The fifth helical gear 7 and the sixth helical gear 8 are in meshing transmission, the sixth helical gear 8 and the third bearing sleeve 14 are in fastening connection through a flat key 9, the third bearing sleeve 14 is in bolted connection with the second shell 16, and the second shell 16 is fixedly connected with the second intermediate shaft 17 through a bolt, so that the rotation of the fifth helical gear 7 drives the second shell 16 to rotate, and further drives the second intermediate shaft 17 to rotate along the shaft MN.

The sixth conical gear 19 and the fifth conical gear 18 are respectively sleeved at the upper end and the lower end of the second intermediate shaft 17 through bearings, the third shaft 10 and the fourth shaft 24 are arranged at the left side and the right side of a central shaft XY of the second intermediate shaft 17 in an axisymmetric manner, the central shafts of the third shaft 10 and the fourth shaft 24 are both MN and are sleeved in a sixth bearing sleeve 25 through bearings, the left end of the third shaft 10 is provided with a ninth conical gear 11 connected with a flat key, the right end of the third shaft is provided with a seventh conical gear 15 connected with a flat key, the left end of the fourth shaft 24 is provided with an eighth conical gear 20 connected with a flat key, the right end of the fourth shaft is provided with a tenth conical gear 23 connected with a flat key, the seventh conical gear 15 is simultaneously in meshed transmission with the fifth conical gear 18 and the sixth conical gear 19, the eighth conical gear 20 is also simultaneously in meshed transmission with the fifth conical gear 18 and the sixth conical gear 19, the first output shaft 13 and the second output shaft 21 are symmetrically arranged around the axis XY, the axes of the first output shaft 13 and the second output shaft 21 are along the vertical direction, the upper end of the first output shaft 13 is provided with an eleventh conical gear 12 connected with a flat key, the eleventh conical gear 12 is in meshing transmission with the ninth conical gear 11, the upper end of the second output shaft 21 is provided with a twelfth conical gear 22 connected with a flat key, and the twelfth conical gear 22 is in meshing transmission with a tenth conical gear 23.

The second intermediate shaft 17 rotates along the axis MN to drive the third shaft 10 and the fourth shaft 24 to rotate, the rotating speeds of the third shaft 10 and the fourth shaft 24 are the same, and then the first output shaft 13 and the second output shaft 21 are driven to rotate along the vertical axial direction, and the rotating speeds of the first output shaft 13 and the second output shaft 21 are the same.

The rotating speed of the second conical gear 33 is adjusted by adjusting the rotating speed of the auxiliary input shaft 30, and then the rotating speed of the first intermediate shaft 35 is adjusted under the combined action of the first conical gear 37, compared with the problem that the high-power gearbox in the prior art can only complete gear shifting and speed changing at low speed or in a shutdown state, and the production efficiency is affected, the invention does not need to stop for gear shifting, and can realize stepless speed regulation by adjusting the rotating speed of the auxiliary input shaft in the running process of the gearbox, so that the production efficiency is improved; by arranging the double input shafts and adopting the two motors with smaller power to carry out confluence of input power, compared with the prior art in which a high-power motor with higher cost is adopted, the cost is saved; through setting up dual output shaft, satisfy the demand of dual output shaft in the process of the production, and this transmission structure can carry out the average distribution to two output end moments of torsion, has avoided the phenomenon of transmission moment of torsion uneven load to take place.

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 invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A gear transmission structure comprising an input shaft (1), characterized in that: the transmission mechanism is characterized by further comprising an auxiliary input shaft (30), a first intermediate shaft (35), a first conical gear (37), a second conical gear (33) and a third conical gear (34), wherein the third conical gear (34) is sleeved on the first intermediate shaft (35) through a bearing, the first conical gear (37) and the second conical gear (33) are arranged on two sides of the first intermediate shaft (35) in an axisymmetric mode, the first conical gear (37) and the second conical gear (33) are both meshed with the third conical gear (34), the input shaft (1) and the auxiliary input shaft (30) are respectively used for driving the first conical gear (37) and the second conical gear (33) to rotate, and then the first intermediate shaft (35) is driven to rotate along a central axis OP of the first conical gear (37).

2. The gear transmission structure according to claim 1, wherein: the gear transmission mechanism further comprises a fourth conical gear (27), the fourth conical gear (27) is sleeved on the first intermediate shaft (35) through a bearing, and the first conical gear (37) and the second conical gear (33) are meshed with the third conical gear (34) and the fourth conical gear (27) simultaneously.

3. The gear transmission structure according to claim 1, wherein: the transmission device is characterized by further comprising a first shaft (4) and a second shaft (28), wherein the first conical gear (37) is fixedly sleeved on the first shaft (4), the input shaft (1) is in gear transmission connection with the first shaft (4), the transmission connection enables the rotating speed of the first shaft (4) to be lower than that of the input shaft (1), the second conical gear (33) is fixedly sleeved on the second shaft (28), the auxiliary input shaft (30) is in gear transmission connection with the second shaft (28), and the transmission connection enables the rotating speed of the second shaft (28) to be lower than that of the auxiliary input shaft (30).

4. The gear transmission structure according to claim 1, wherein: the novel gear transmission mechanism is characterized by further comprising a second intermediate shaft (17), a first shell (36) and a second shell (16), wherein the first shell (36) is wrapped on the outer side of the first intermediate shaft (35) and fixedly connected with the end portion of the first intermediate shaft (35), the second shell (16) is wrapped on the outer side of the second intermediate shaft (17) and fixedly connected with the end portion of the second intermediate shaft (17), the first shell (36) is connected with the second shell (16) through gear transmission, and the first shell (36) can transmit the rotation of the first intermediate shaft (35) to the second shell (16) so as to drive the second intermediate shaft (17) to rotate.

5. The gear transmission structure according to claim 4, wherein: the novel gear transmission mechanism is characterized by further comprising a fifth conical gear (18), a seventh conical gear (15) and a third shaft (10), wherein the fifth conical gear (18) is sleeved on the second intermediate shaft (17) through a bearing, the seventh conical gear (15) is fixedly sleeved on the third shaft (10), and the fifth conical gear (18) is meshed with the seventh conical gear (15).

6. The gear transmission structure according to claim 5, wherein: the novel gearbox is characterized by further comprising a fourth shaft (24) and an eighth conical gear (20), wherein the eighth conical gear (20) is fixedly sleeved on the fourth shaft (24), the eighth conical gear (20) and the seventh conical gear (15) are arranged on two sides of the second intermediate shaft (17) in an axisymmetric mode, and the fifth conical gear (18) is meshed with the eighth conical gear (20).

7. The gear transmission structure according to claim 6, wherein: the gearbox is characterized by further comprising a sixth conical gear (19), wherein the sixth conical gear (19) is sleeved on the second intermediate shaft (17) through a bearing, and the seventh conical gear (15) and the eighth conical gear (20) are meshed with the fifth conical gear (18) and the sixth conical gear (19) simultaneously.