CN212155537U

CN212155537U - Universal shaft structure

Info

Publication number: CN212155537U
Application number: CN202020516138.8U
Authority: CN
Inventors: 刘红英
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-12-15
Anticipated expiration: 2030-04-10

Abstract

The utility model provides an universal shaft structure relates to universal shaft technical field, including the transmission shaft, the equal fixedly connected with second link in both ends of transmission shaft, the one end that two second links kept away from each other is rotated and is connected with first link, and the equal fixedly connected with of one end that the transmission shaft was kept away from to two first links even axle, still includes lubricating arrangement and connecting device, and two lubricating arrangement are located the position that is close to two second links. The utility model discloses, utilize inlet case liquid storage tank inside to add lubricated fluid, install and follow the transmission shaft rotation at the liquid storage tank on transmission shaft surface, the inside lubricated fluid of liquid storage tank sets up the pipe along the slope under the effect of centrifugal force and gets into circular-arc even intraductal, make lubricated fluid have even intraduct, through opening miniature solenoid valve, make to have even intraduct lubricating oil liquid drop to connecting device on to avoid the universal shaft to carry out the torsion again and can produce wearing and tearing in the direction conversion process, thereby reduce its life's problem.

Description

Universal shaft structure

Technical Field

The utility model relates to an cardan shaft technical field especially relates to an cardan shaft structure.

Background

The universal shaft is an important component in a screw drill, the upper end of the universal shaft is connected with a rotor in a drill motor assembly of the screw in the screw drill, the lower end of the universal shaft is connected with a transmission shaft of an output end, the universal shaft has the function of transmitting mechanical motion converted by the motor assembly to the output end so as to drive a drill bit to rotate, and the universal shaft not only bears output torque, axial pressure and transmission output rotating speed, but also converts the eccentric rotation form of the rotor into the rotation form of the centering of the transmission shaft.

The prior universal shaft has the following defects in the using process: the cardan shaft will produce wearing and tearing in the torsion direction switching process again to reduce its life.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a universal shaft structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an universal shaft structure, includes the transmission shaft, the equal fixedly connected with second link in both ends of transmission shaft, two the one end that the second link was kept away from each other is rotated and is connected with first link, two the equal fixedly connected with of one end that the transmission shaft was kept away from to first link links the axle, still includes lubricating arrangement and connecting device, lubricating arrangement is two, and two lubricating arrangement are located the position that is close to two second links, lubricating arrangement includes the liquid reserve tank, the lateral wall intercommunication of liquid reserve tank has the pipe, the other end intercommunication of pipe has the connecting pipe, the fixed surface of pipe is connected with the mounting panel, the surface and the transmission shaft fixed connection of mounting panel, the other end intercommunication of connecting pipe has miniature solenoid valve, the surface intercommunication of liquid reserve tank has the inlet.

Preferably, the liquid storage tank is of a hollow circular ring-shaped structure, the liquid storage tank is sleeved on the surface of the transmission shaft, and a plug block is arranged between the liquid storage tank and the transmission shaft in a plugging mode.

Preferably, the chock is wedge-shaped structure, and the chock is four to four chock evenly distributed is between the liquid reserve tank and the transmission shaft two.

Preferably, the guide pipe is obliquely arranged away from the transmission shaft, and a connecting pipe communicated with the guide pipe is of an arc-shaped structure.

Preferably, connecting device includes the connecting axle, the both ends and the first link inner wall fixed connection of connecting axle, the surface cover of connecting axle is equipped with the bearing, the position and the second link of bearing outer wall perpendicular to connecting axle rotate to be connected, the upper and lower both ends of bearing all are equipped with cushion and fastening nut.

Preferably, the fastening nut and the rubber mat are sleeved on the surface of the connecting shaft, the inner wall of the fastening nut is in threaded connection with the connecting shaft, and the rubber mat is located between the fastening nut and the bearing.

Advantageous effects

1. The utility model discloses in, utilize inlet case liquid storage tank inside to add lubricating oil, install and follow the transmission shaft rotation at the liquid storage tank on transmission shaft surface, the inside lubricating oil of liquid storage tank sets up the pipe along the slope under the effect of centrifugal force and gets into circular-arc even intraductal, make lubricating oil have even intraductal, through opening miniature solenoid valve, make to have even intraductal lubricating oil liquid drop to connecting device on, thereby avoid the universal shaft to carry out the torsion again and can produce wearing and tearing in the direction conversion process, thereby reduce its life's problem.

2. The utility model discloses in, drive first link through the connecting axle and make, first link drives the bearing and carries out the direction regulation, utilizes first bearing to drive the connecting axle, makes the connecting axle drive the second link and rotates to reach the effect of adjusting the direction.

Drawings

Fig. 1 is a schematic perspective view of a cardan shaft structure according to the present invention;

fig. 2 is a front view of the universal shaft structure of the present invention;

fig. 3 is a schematic structural diagram of a connecting device in a cardan shaft structure according to the present invention;

fig. 4 is the utility model provides a structure diagram of a place of fig. 1 in a cardan shaft structure.

Illustration of the drawings: 1. a drive shaft; 2. a connecting shaft; 3. a first connecting frame; 4. a second link frame; 5. a lubricating device; 51. a chock block; 52. a liquid storage tank; 53. a conduit; 54. mounting a plate; 55. connecting pipes; 56. a miniature electromagnetic valve; 57. a liquid inlet; 6. a connecting device; 61. a connecting shaft; 62. fastening a nut; 63. a rubber pad; 64. and a bearing.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

The specific embodiment is as follows:

referring to fig. 1-4, a universal shaft structure comprises a transmission shaft 1, wherein two ends of the transmission shaft 1 are fixedly connected with second connecting frames 4, one ends of the two second connecting frames 4, which are far away from each other, are rotatably connected with first connecting frames 3, one ends of the two first connecting frames 3, which are far away from the transmission shaft 1, are fixedly connected with connecting shafts 2, the universal shaft structure further comprises two lubricating devices 5 and connecting devices 6, the two lubricating devices 5 are located at positions close to the two second connecting frames 4, each lubricating device 5 comprises a liquid storage tank 52, each liquid storage tank 52 is of a hollow circular structure, the liquid storage tank 52 is sleeved on the surface of the transmission shaft 1, plugs 51 are plugged between the liquid storage tank 52 and the transmission shaft 1, the plugs 51 are of a wedge-shaped structure, the plugs 51 are four, the four plugs 51 are uniformly distributed between the liquid storage tank 52 and the transmission shaft 1, the side walls of the liquid storage tank 52 are communicated with guide pipes 53, the guide pipe 53 is obliquely arranged away from the transmission shaft 1, a connecting pipe 55 communicated with the guide pipe 53 is of an arc-shaped structure, the other end of the guide pipe 53 is communicated with the connecting pipe 55, the surface of the guide pipe 53 is fixedly connected with an installation plate 54, the surface of the installation plate 54 is fixedly connected with the transmission shaft 1, the other end of the connecting pipe 55 is communicated with a miniature electromagnetic valve 56, and the surface of the liquid storage box 52 is communicated with a liquid inlet 57.

Connecting device 6 includes connecting axle 61, the both ends of connecting

axle

61 and 3 inner wall fixed connection of first link, the surface cover of connecting axle 61 is equipped with bearing 64, the position and the second link 4 of bearing 64 outer wall perpendicular to connecting axle 61 rotate to be connected, the upper and lower both ends of bearing 64 all are equipped with cushion 63 and fastening nut 62, fastening nut 62 and cushion 63 all overlap and establish the surface at connecting axle 61, fastening nut 62's inner wall and connecting axle 61 threaded connection, cushion 63 is located between the two of fastening nut 62 and bearing 64.

The utility model discloses a theory of operation: lubricating oil is added by utilizing a liquid inlet 57 in the liquid storage tank, the liquid storage tank arranged on the surface of the transmission shaft 1 rotates along with the transmission shaft 1, the lubricating oil in the liquid storage tank enters the inside of the circular arc connecting pipe 55 along the inclined guide pipe 53 under the action of centrifugal force, so that the lubricating oil exists in the connecting pipe 55, the lubricating oil in the connecting pipe 55 drips onto the connecting device 6 by opening the miniature electromagnetic valve 56, the problem that the universal shaft can generate abrasion in the process of converting the direction of the torsion is solved, the service life of the connecting device is reduced, the connecting shaft 2 drives the first connecting frame 3 to drive the bearing 64 to adjust the direction, the bearing 64 drives the connecting shaft 61, the connecting shaft 61 drives the second connecting frame 4 to rotate, the direction adjusting effect is achieved, and the two fastening nuts 62 rotate on the surface threads of the connecting shaft 61, so that the bearing 64 is clamped by the two fastening nuts 62, and the two rubber pads 63 have a protective function.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cardan shaft structure, includes transmission shaft (1), the equal fixedly connected with second link (4) in both ends of transmission shaft (1), two one end that second link (4) kept away from each other is rotated and is connected with first link (3), two the equal fixedly connected with of one end that transmission shaft (1) was kept away from in first link (3) links axle (2), its characterized in that: still include lubricating arrangement (5) and connecting device (6), lubricating arrangement (5) are two, and two lubricating arrangement (5) are located the position that is close to two second link (4), lubricating arrangement (5) include liquid reserve tank (52), the lateral wall intercommunication of liquid reserve tank (52) has pipe (53), the other end intercommunication of pipe (53) has even pipe (55), the fixed surface of pipe (53) is connected with mounting panel (54), the surface and transmission shaft (1) fixed connection of mounting panel (54), the other end intercommunication of even pipe (55) has miniature solenoid valve (56), the surface intercommunication of liquid reserve tank (52) has inlet (57).

2. A cardan shaft structure according to claim 1, wherein: the liquid storage tank (52) is of a hollow circular ring-shaped structure, the liquid storage tank (52) is sleeved on the surface of the transmission shaft (1), and a plug block (51) is arranged between the liquid storage tank (52) and the transmission shaft (1) in a plugging mode.

3. A cardan shaft structure according to claim 2, wherein: the chock blocks (51) are of wedge-shaped structures, the number of the chock blocks (51) is four, and the four chock blocks (51) are uniformly distributed between the liquid storage tank (52) and the transmission shaft (1).

4. A cardan shaft structure according to claim 1, wherein: the guide pipe (53) is arranged away from the transmission shaft (1) in an inclined mode, and a connecting pipe (55) communicated with the guide pipe (53) is of an arc-shaped structure.

5. A cardan shaft structure according to claim 1, wherein: connecting device (6) are including connecting axle (61), the both ends and first link (3) inner wall fixed connection of connecting axle (61), the surface cover of connecting axle (61) is equipped with bearing (64), the position and second link (4) of bearing (64) outer wall perpendicular to connecting axle (61) rotate to be connected, the upper and lower both ends of bearing (64) all are equipped with cushion (63) and fastening nut (62).

6. A cardan shaft structure according to claim 5, wherein: fastening nut (62) and cushion (63) all overlap the surface of establishing at connecting axle (61), the inner wall and connecting axle (61) threaded connection of fastening nut (62), cushion (63) are located between fastening nut (62) and bearing (64) the two.