CN216733908U

CN216733908U - Full-hydraulic single-axle driving mechanism of road roller

Info

Publication number: CN216733908U
Application number: CN202122910974.1U
Authority: CN
Inventors: 李英峰; 李俊鹏; 金雁波
Original assignee: Luoyang Lutong Heavy Industry Machinery Co ltd
Current assignee: Luoyang Lutong Heavy Industry Machinery Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-06-14
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a full-hydraulic single axle actuating mechanism of road roller relates to engineering machine tool technical field, including driving motor, driving motor's bottom is connected with bearing frame centring means, and bearing frame centring means's bottom swing joint has first transmission shaft fork, the external connection of first transmission shaft fork has the universal joint transmission shaft. The utility model discloses in, driving motor drives first transmission shaft fork and rotates, and then can drive the universal joint transmission shaft and rotate, thereby can drive arresting gear and rotate, arresting gear transmits the moment of torsion for differential mechanism converts the rotation of semi-axis into through differential mechanism, finally drive wheel hub and tire and rotate, realize the drive of road roller, with driving motor's rotation directly through differential mechanism transmission to the tire on, realize the tire and rotate, connect simply reliably, the impact to hydraulic component and hydraulic system has been reduced, fine guard action has been played to hydraulic component and hydraulic system, hydraulic component's life has been prolonged.

Description

Full-hydraulic single-axle driving mechanism of road roller

Technical Field

The utility model relates to an engineering machine tool technical field especially relates to a full-hydraulic single axle actuating mechanism of road roller.

Background

The road roller is widely used for the filling and compacting operation of large engineering projects such as high-grade highways, stadiums and the like, can roll sandy, semi-viscous and viscous soil, roadbed stabilizing soil and asphalt concrete pavement layers, and provides a full-hydraulic single-axle driving mechanism of the road roller.

The rear axle of the existing road roller is directly connected with a driving motor or connected with a driving axle through a speed reduction braking device with a complex structure, the requirement on the machining precision of connecting parts is high, and the impact on a hydraulic element is large, so that the service life of the hydraulic element is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the rear axle of current road roller and all adopting the reduction arresting gear that the driving motor lug connection perhaps structure is complicated to connect the transaxle, require highly to the machining precision of connecting part to it is big to hydraulic component's impact, makes the shortcoming that hydraulic component's life reduces, and the full-hydraulic single axle actuating mechanism of a road roller that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a full hydraulic single axle driving mechanism of a road roller, comprising:

the bottom of the driving motor is connected with a bearing seat centering device, the bottom of the bearing seat centering device is movably connected with a first transmission shaft fork, the outside of the first transmission shaft fork is connected with a universal joint transmission shaft, the bottom end of the universal joint transmission shaft is provided with a second transmission shaft fork, cross shafts are arranged inside the second transmission shaft fork and the first transmission shaft fork, and the tail ends of the cross shafts are connected with fixing bolts;

the second transmission shaft fork is connected with a braking device through a cross shaft, the bottom end of the braking device is connected with a differential mechanism, half shafts are installed on two sides of the interior of the differential mechanism, a wheel hub is installed at the tail end of each half shaft, and a tire is installed outside each wheel hub.

Preferably, the first springs are sleeved on the left side and the right side of the outer portion of the cross shaft, the two ends of each first spring are connected with first lantern rings, the second springs are sleeved on the upper side and the lower side of the outer portion of the cross shaft, and the two ends of each second spring are connected with second lantern rings.

Preferably, the first transmission shaft fork is rotationally connected with the driving motor, and the central axis of the driving motor coincides with the central axis of the bearing seat centering device.

Preferably, the second transmission shaft fork and the braking device form movable connection through a cross shaft, and the second transmission shaft fork and the universal joint transmission shaft are in electric welding connection.

Preferably, the inner wall of the first lantern ring is attached to the outer wall of the cross shaft, and an elastic structure is formed between the first lantern ring and the cross shaft through the first spring.

Preferably, the cross shaft, the second transmission shaft fork and the braking device form a detachable structure through fixing bolts, and the width of the left side and the width of the right side of the cross shaft are smaller than the width of the inner side of the second transmission shaft fork.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, driving motor drives first transmission shaft fork and rotates, and then can drive the universal joint transmission shaft and rotate, thereby can drive arresting gear and rotate, arresting gear transmits the moment of torsion for differential mechanism converts the rotation of semi-axis into through differential mechanism, finally drive wheel hub and tire and rotate, realize the drive of road roller, with driving motor's rotation directly through differential mechanism transmission to the tire on, realize the tire and rotate, connect simply reliably, the impact to hydraulic component and hydraulic system has been reduced, fine guard action has been played to hydraulic component and hydraulic system, hydraulic component's life has been prolonged.

2. The utility model discloses in, after installing the second transmission shaft fork, first spring can play the effect of buffering to the both sides of second transmission shaft fork, avoid starting in the twinkling of an eye, take place the striking and damage between cross and the second transmission shaft fork, the effect of buffering can be played to the both sides of cross and arresting gear's junction to the second spring of the same reason, avoid starting in the twinkling of an eye, take place the striking and damage between cross and arresting gear's the junction, this is lifted and can be played the effect of protection to the cross effectively, avoid the cracked phenomenon to appear in the cross.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the present invention;

FIG. 2 is a schematic view of a local connection structure of a middle universal joint transmission shaft of the present invention;

fig. 3 is a schematic view of the external connection structure of the middle cross shaft of the present invention.

Illustration of the drawings:

1. a drive motor; 2. a bearing seat centering device; 3. a universal joint drive shaft; 4. a braking device; 5. a half shaft; 6. a tire; 7. a hub; 8. a first drive shaft yoke; 9. fixing the bolt; 10. a second drive shaft yoke; 11. a cross shaft; 12. a first collar; 13. a first spring; 14. a second collar; 15. a second spring; 16. a differential gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a full hydraulic single axle driving mechanism of a road roller comprises a driving motor 1, a bearing seat centering device 2 is connected to the bottom of the driving motor 1, a first transmission shaft fork 8 is movably connected to the bottom of the bearing seat centering device 2, a universal joint transmission shaft 3 is connected to the outside of the first transmission shaft fork 8, a second transmission shaft fork 10 is installed at the bottom end of the universal joint transmission shaft 3, the first transmission shaft fork 8 is rotatably connected with the driving motor 1, the central axis of the driving motor 1 coincides with the central axis of the bearing seat centering device 2, the driving motor 1 can drive the first transmission shaft fork 8 to rotate, and further can drive the universal joint transmission shaft 3 to rotate, so as to drive a braking device 4 to rotate, the braking device 4 transmits torque to a differential mechanism 16, and converts the torque into rotation of a half axle 5 through the differential mechanism 16, and finally drives a wheel hub 7 and a tire 6 to rotate, the driving of the road roller is realized;

the second transmission shaft fork 10 and the braking device 4 are movably connected through a cross shaft 11, the second transmission shaft fork 10 and the universal joint transmission shaft 3 are in electric welding connection, the second transmission shaft fork 10 and the braking device 4 can be connected together through the cross shaft 11, the electric welding connection ensures that the second transmission shaft fork 10 can be driven to synchronously rotate in the rotation process of the universal joint transmission shaft 3, the cross shafts 11 are arranged in the second transmission shaft fork 10 and the first transmission shaft fork 8, the tail ends of the cross shafts 11 are connected with fixing bolts 9, the cross shafts 11, the second transmission shaft fork 10 and the braking device 4 respectively form a detachable structure through the fixing bolts 9, the widths of the left side and the right side of the cross shafts 11 are smaller than the width of the inner side of the second transmission shaft fork 10, the cross shafts 11, the second transmission shaft fork 10 and the braking device 4 can be respectively connected together through the fixing bolts 9, the installation and the disassembly are convenient, the width of the left side and the right side of the cross shaft 11 is smaller than the width of the inner side of the second transmission shaft fork 10, and the cross shaft 11 can smoothly enter the inner side of the second transmission shaft fork 10;

the second transmission shaft fork 10 is connected with a braking device 4 through a cross shaft 11, the bottom end of the braking device 4 is connected with a differential mechanism 16, half shafts 5 are installed on two sides inside the differential mechanism 16, wheel hubs 7 are installed at the tail ends of the half shafts 5, tires 6 are installed outside the wheel hubs 7, the braking device 4 transmits torque to the differential mechanism 16, the torque is converted into rotation of the half shafts 5 through the differential mechanism 16, and finally the wheel hubs 7 and the tires 6 are driven to rotate, so that the driving of the road roller is realized;

first spring 13 has been cup jointed to the outside left and right sides of cross 11, and the both ends of first spring 13 are connected with first lantern ring 12, the inner wall of first lantern ring 12 and the outer wall of cross 11 laminate mutually, and constitute elastic force structure through first spring 13 between first lantern ring 12 and the cross 11, first lantern ring 12 with the outer wall laminating of cross 11 can remove in the outside of cross 11, after second transmission shaft fork 10 has been installed, first spring 13 can play the effect of buffering to the both sides of second transmission shaft fork 10, avoid starting in the twinkling of an eye, take place the striking and damage between second transmission shaft fork 10 and the cross 11, second spring 15 has been cup jointed to both sides about the outside of cross 11, and the both ends of second spring 15 are connected with second lantern ring 14.

The working principle is as follows: the driving motor 1 can drive the first transmission shaft fork 8 to rotate, and further can drive the universal joint transmission shaft 3 to rotate, so as to drive the braking device 4 to rotate, the braking device 4 transmits torque to the differential mechanism 16 to be converted into rotation of the half shaft 5 through the differential mechanism 16, and finally drives the hub 7 and the tire 6 to rotate, so as to realize driving of the road roller, after the second transmission shaft fork 10 is installed, the first spring 13 can play a role of buffering two sides of the second transmission shaft fork 10, so that the phenomenon that the cross shaft 11 and the second transmission shaft fork 10 are damaged due to collision at the moment of starting is avoided, similarly, the second spring 15 can play a role of buffering two sides of the joint of the cross shaft 11 and the braking device 4, so that the joint of the cross shaft 11 and the braking device 4 is prevented from being damaged due to collision at the moment of starting, and the function of effectively protecting the cross shaft 11 can be realized, the phenomenon that the cross shaft 11 is broken is avoided.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A full hydraulic single axle driving mechanism of a road roller is characterized by comprising:

the device comprises a driving motor (1), wherein the bottom of the driving motor (1) is connected with a bearing seat centering device (2), the bottom of the bearing seat centering device (2) is movably connected with a first transmission shaft fork (8), the outside of the first transmission shaft fork (8) is connected with a universal joint transmission shaft (3), the bottom end of the universal joint transmission shaft (3) is provided with a second transmission shaft fork (10), cross shafts (11) are arranged inside the second transmission shaft fork (10) and the first transmission shaft fork (8), and the tail ends of the cross shafts (11) are connected with fixing bolts (9);

the brake device (4) is connected to the second transmission shaft fork (10) through a cross shaft (11), the bottom end of the brake device (4) is connected with a differential mechanism (16), half shafts (5) are installed on two sides of the interior of the differential mechanism (16), a wheel hub (7) is installed at the tail end of each half shaft (5), and a tire (6) is installed outside each wheel hub (7).

2. The full hydraulic single axle driving mechanism of the road roller as claimed in claim 1, wherein: first springs (13) are sleeved on the left side and the right side of the outer portion of the cross shaft (11), two ends of each first spring (13) are connected with first lantern rings (12), second springs (15) are sleeved on the upper side and the lower side of the outer portion of the cross shaft (11), and two ends of each second spring (15) are connected with second lantern rings (14).

3. The full hydraulic single axle driving mechanism of road roller as claimed in claim 1, wherein: the first transmission shaft fork (8) is rotationally connected with the driving motor (1), and the central axis of the driving motor (1) coincides with the central axis of the bearing seat centering device (2).

4. The full hydraulic single axle driving mechanism of road roller as claimed in claim 1, wherein: the second transmission shaft fork (10) and the braking device (4) are movably connected through a cross shaft (11), and the second transmission shaft fork (10) and the universal joint transmission shaft (3) are in electric welding connection.

5. The full hydraulic single axle driving mechanism of the road roller as claimed in claim 2, wherein: the inner wall of the first lantern ring (12) is attached to the outer wall of the cross shaft (11), and an elastic structure is formed between the first lantern ring (12) and the cross shaft (11) through a first spring (13).

6. The full hydraulic single axle driving mechanism of road roller as claimed in claim 1, wherein: the cross shaft (11), the second transmission shaft fork (10) and the braking device (4) form a detachable structure through the fixing bolts (9), and the width of the left side and the width of the right side of the cross shaft (11) are smaller than the width of the inner side of the second transmission shaft fork (10).