Vertical input and horizontal included angle output transmission gear box

Abstract

The utility model provides a transmission gear box with vertical input and horizontal included angle output, which relates to the technical field of gear boxes and comprises a bottom plate, a box body is mounted on the upper surface of the bottom plate, a first bearing seat is mounted on the upper side of the interior of the box body, and a second bearing seat is further mounted on one side of the interior of the box body. And an input shaft is mounted in the first bearing seat. A first four-point ball bearing, a first cylindrical roller bearing, a second four-point ball bearing, a second cylindrical roller bearing, a third four-point ball bearing and a fourth cylindrical roller bearing are installed at the two ends of an input shaft, a first intermediate shaft and a hollow shaft gear respectively, the cylindrical roller bearings can bear radial force, and the four-point ball bearings can bear axial force. The input shaft, the first intermediate shaft and the hollow shaft gear have a better supporting effect and are more stable in the rotating process, abrasion of the bearing in the using process can be effectively reduced, and the service life of the bearing is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a transmission gear box with vertical input and horizontal angle output. Background Art

[0002] The engine test bench is a testing platform for testing the engine. It is necessary to install a gearbox on the test bench for use. The gearbox is a common mechanical transmission component that can be used to increase or decrease the speed, such as a gearbox proposed in the patent with application number 202211183071.0. The gearbox includes: a housing; a motor, the motor is arranged on one side of the housing, and the rotor of the motor extends into the housing; an input shaft, the input shaft is arranged on the side of the housing close to the motor, and is connected to the rotor of the motor; a first gear is also arranged on the input shaft, and the first gear is a gear with a helical gear structure; an intermediate shaft, the intermediate shaft is arranged in the housing, and is spaced from the input shaft, and a second gear is arranged on the intermediate shaft, the second gear is meshed with the first gear, and the second gear is a gear with a helical gear structure; an output shaft, the output shaft is arranged in the housing away from the input shaft, and a third gear is arranged on the output shaft, and is meshed with the second gear, and the third gear is a gear with a helical gear structure; wherein the motor drives the input shaft and the first gear to rotate simultaneously; the first gear drives the second gear and the intermediate shaft to rotate; the second gear drives the third gear and the output shaft to rotate.

[0003] The bearings on the various shafts inside the existing gearbox are subject to greater wear and tear during use, are easily damaged, have a short service life, and need to be replaced frequently. Therefore, we have made improvements to this and proposed a vertical input horizontal angle output transmission gearbox. Utility Model Content

[0004] The main purpose of the utility model is to provide a vertical input and horizontal angle output transmission gearbox, which can effectively solve the problem that the bearings on various shafts inside the gearbox are subject to heavy wear during use, are easily damaged, have a short service life, and need to be replaced frequently.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A vertical input and horizontal angle output transmission gearbox comprises a base plate, a box body is installed on the upper surface of the base plate, a first bearing seat is installed on the upper inner side of the box body, a second bearing seat is also installed on one inner side of the box body, an input shaft is installed inside the first bearing seat, one end of the input shaft is arranged on the outer side of the box body, a first intermediate shaft is installed inside the second bearing seat and on one side of the bottom of the input shaft, a second intermediate shaft is installed in the middle of the second bearing seat, a hollow shaft gear is also arranged on one inner side of the second bearing seat, and an output shaft is installed on one end of the hollow shaft gear.

[0007] Preferably, a first bevel gear is fixedly mounted on the bottom shaft body of the input shaft, and a first four-point ball bearing and a first cylindrical roller bearing are respectively mounted on one side shaft body of the input shaft.

[0008] Preferably, a second bevel gear is fixedly mounted on one side of the shaft body of the first intermediate shaft, the second bevel gear is meshed with the first bevel gear, and a first transmission gear is also fixedly mounted on one side of the shaft body of the first intermediate shaft.

[0009] Preferably, second cylindrical roller bearings are installed on both end shafts of the first intermediate shaft, and a second four-point ball bearing is installed on one end shaft of the first intermediate shaft and on one side of the second cylindrical roller bearing.

[0010] Preferably, a second transmission gear is fixedly mounted on the shaft body of the second intermediate shaft, and the second transmission gear is meshed with the first transmission gear.

[0011] Preferably, third cylindrical roller bearings are installed on both end shafts of the second intermediate shaft and inside the second bearing seat.

[0012] Preferably, the hollow shaft gear is meshed with the second transmission gear, and a third four-point ball bearing and a fourth cylindrical roller bearing are installed on both end shafts of the hollow shaft gear.

[0013] Preferably, an ultra-precision high-speed bearing is installed on the shaft body of the output shaft and inside the second bearing seat.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The first four-point ball bearing, the first cylindrical roller bearing, the second four-point ball bearing, the second cylindrical roller bearing, the third four-point ball bearing and the fourth cylindrical roller bearing are respectively installed at both ends of the input shaft, the first intermediate shaft and the hollow shaft gear. The cylindrical roller bearings can withstand radial forces, and the four-point ball bearings can withstand axial forces, so that the input shaft, the first intermediate shaft and the hollow shaft gear have better supporting effects, are more stable during rotation, can effectively reduce the wear of the bearings during use, and extend the service life of the bearings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 For the utility model Figure 1 Sectional view at AA;

[0019] Figure 4 For the utility model Figure 3 Cross-section view at the middle BB.

[0020] In the figure: 1, bottom plate; 2, housing; 3, input shaft; 301, first bevel gear; 302, first four-point ball bearing; 303, first cylindrical roller bearing; 4, first intermediate shaft; 401, second bevel gear; 402, first transmission gear; 403, second four-point ball bearing; 404, second cylindrical roller bearing; 5, second intermediate shaft; 501, second transmission gear; 502, third cylindrical roller bearing; 6, hollow shaft gear; 601, third four-point ball bearing; 602, fourth cylindrical roller bearing; 7, first bearing seat; 8, second bearing seat; 9, output shaft; 901, ultra-precision high-speed bearing. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, a vertical input horizontal angle output transmission gearbox includes a base plate 1, a box body 2 is installed on the upper surface of the base plate 1, a first bearing seat 7 is installed on the upper side of the interior of the box body 2, a second bearing seat 8 is also installed on one side of the interior of the box body 2, an input shaft 3 is installed inside the first bearing seat 7, one end of the input shaft 3 is arranged on the outside of the box body 2, a first intermediate shaft 4 is installed inside the second bearing seat 8 and on one side of the bottom of the input shaft 3, a second intermediate shaft 5 is installed in the middle of the second bearing seat 8, a hollow shaft gear 6 is also arranged on one side of the interior of the second bearing seat 8, and an output shaft 9 is installed on one end of the hollow shaft gear 6.

[0023] like Figures 1 to 4As shown, a first bevel gear 301 is fixedly mounted on the bottom shaft of the input shaft 3, a first four-point ball bearing 302 and a first cylindrical roller bearing 303 are respectively mounted on one side shaft of the input shaft 3, a second bevel gear 401 is fixedly mounted on one side shaft of the first intermediate shaft 4, the second bevel gear 401 meshes with the first bevel gear 301, a first transmission gear 402 is also fixedly mounted on one side shaft of the first intermediate shaft 4, second cylindrical roller bearings 404 are mounted on both ends of the shaft of the first intermediate shaft 4, and a second cylindrical roller bearing 404 is also mounted on one end shaft of the first intermediate shaft 4 and on one side of the second cylindrical roller bearing 404. A second four-point ball bearing 403 is installed, and a second transmission gear 501 is fixedly installed on the shaft of the second intermediate shaft 5. The second transmission gear 501 is meshed with the first transmission gear 402. Third cylindrical roller bearings 502 are installed on the shafts at both ends of the second intermediate shaft 5 and inside the second bearing seat 8. The hollow shaft gear 6 is meshed with the second transmission gear 501. A third four-point ball bearing 601 and a fourth cylindrical roller bearing 602 are installed on the shafts at both ends of the hollow shaft gear 6. An ultra-precision high-speed bearing 901 is installed on the shaft of the output shaft 9 and inside the second bearing seat 8.

[0024] The first four-point ball bearing 302, the first cylindrical roller bearing 303, the second four-point ball bearing 403, the second cylindrical roller bearing 404, the third four-point ball bearing 601, and the fourth cylindrical roller bearing 602 are respectively installed at both ends of the input shaft 3, the first intermediate shaft 4 and the hollow shaft gear 6. The cylindrical roller bearings can withstand radial forces, and the four-point ball bearings can withstand axial forces, so that the input shaft 3, the first intermediate shaft 4 and the hollow shaft gear 6 have better supporting effects, are more stable during rotation, can effectively reduce the wear of the bearings during use, and extend the service life of the bearings.

[0025] The working principle of a vertical input and horizontal angle output transmission gearbox:

[0026] Power is connected to the end of the input shaft 3. Through the meshing transmission between the first bevel gear 301 and the second bevel gear 401, the rotation of the input shaft 3 can drive the first intermediate shaft 4 to rotate. Under the meshing action between the first transmission gear 402 and the second transmission gear 501 and the second transmission gear 501 and the hollow shaft gear 6, the second intermediate shaft 5 and the hollow shaft gear 6 can be rotated. The rotation of the hollow shaft gear 6 can drive the output shaft 9 to rotate together, so that the vertical input power can be converted into a horizontal angle output. The gearbox adopts a centralized oil supply from a thin oil station, and the bearings and gears are forced to be lubricated by oil injection. Each bearing and gear is designed with multiple oil injection points to ensure sufficient lubrication and avoid high temperature inside the gearbox.

[0027] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A vertical input and horizontal angle output transmission gearbox, comprising a base plate (1), Features: A box body (2) is mounted on the upper surface of the bottom plate (1), a first bearing seat (7) is mounted on the upper side of the box body (2), a second bearing seat (8) is mounted on one side of the inside of the box body (2), an input shaft (3) is mounted inside the first bearing seat (7), one end of the input shaft (3) is arranged outside the box body (2), a first intermediate shaft (4) is mounted inside the second bearing seat (8) and on one side of the bottom of the input shaft (3), a second intermediate shaft (5) is mounted in the middle of the second bearing seat (8), a hollow shaft gear (6) is also mounted on one side of the inside of the second bearing seat (8), and an output shaft (9) is mounted on one end of the hollow shaft gear (6).

2. A vertical input and horizontal angle output transmission gearbox according to claim 1, Features: A first bevel gear (301) is fixedly mounted on the bottom shaft body of the input shaft (3), and a first four-point ball bearing (302) and a first cylindrical roller bearing (303) are respectively mounted on one side shaft body of the input shaft (3).

3. A vertical input and horizontal angle output transmission gearbox according to claim 1, Features: A second bevel gear (401) is fixedly mounted on one side of the shaft body of the first intermediate shaft (4), the second bevel gear (401) meshing with the first bevel gear (301), and a first transmission gear (402) is also fixedly mounted on one side of the shaft body of the first intermediate shaft (4).

4. A vertical input and horizontal angle output transmission gearbox according to claim 1, Features: Second cylindrical roller bearings (404) are installed on both end shafts of the first intermediate shaft (4), and a second four-point ball bearing (403) is also installed on one end shaft of the first intermediate shaft (4) and on one side of the second cylindrical roller bearing (404).

5. A vertical input and horizontal angle output transmission gearbox according to claim 1, Features: A second transmission gear (501) is fixedly mounted on the shaft body of the second intermediate shaft (5), and the second transmission gear (501) and the first transmission gear (402) are meshed with each other.

6. A vertical input and horizontal angle output transmission gearbox according to claim 1, Features: Third cylindrical roller bearings (502) are installed on the shaft bodies at both ends of the second intermediate shaft (5) and inside the second bearing seat (8).

7. A vertical input and horizontal angle output transmission gearbox according to claim 1, Features: The hollow shaft gear (6) and the second transmission gear (501) are meshed with each other, and a third four-point ball bearing (601) and a fourth cylindrical roller bearing (602) are mounted on the shaft bodies at both ends of the hollow shaft gear (6).

8. A vertical input and horizontal angle output transmission gearbox according to claim 1, Features: An ultra-precision high-speed bearing (901) is installed on the shaft body of the output shaft (9) and inside the second bearing seat (8).

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