CN215171481U - Driving shaft convenient to replace - Google Patents

Abstract

The utility model discloses a driving shaft convenient to change, including first driving shaft, second driving shaft and extension strip piece, first driving shaft in-connection has the connecting axle, and the other end of connecting axle is connected with the second driving shaft, first driving shaft surface is connected with and extends the strip piece, and is equipped with the tooth piece in the extension strip piece, first driving shaft internal surface is connected with the rack, and the rack surface has seted up flutedly, the front end of first driving shaft is equipped with the sleeve, and telescopic in-connection has the stopper, be equipped with the movable groove in the first driving shaft, and the movable groove in-connection has the cardboard. This driving shaft convenient to change sets up the cardboard through the output at the driving shaft to the cardboard carries out the interlock with a plurality of connecting rods, makes the cardboard be convenient for stretch out and draw back, and the cardboard is connected with the power supply, can accomplish the axial fixity, and wherein the connected mode of drive connecting rod and extension strip piece is convenient for adjust control to the cardboard, thereby has increased the holistic dismouting efficiency of driving shaft.

Description

Driving shaft convenient to replace

Technical Field

The utility model relates to a driving shaft technical field specifically is a driving shaft convenient to change.

Background

The driving shaft is the shaft closest to the power source, the shaft is a cylindrical object penetrating in the middle of a bearing or in the middle of a wheel or in the middle of a gear, but a small part of the shaft is square, the shaft is a mechanical part which supports a rotating part and rotates together with the rotating part to transfer motion, torque or bending moment, the driving shaft is a shaft directly connected with a driving device, generally in a metal round rod shape, each section can have different diameters, the part which rotates in the machine is arranged on the driving shaft, the metal driving shaft is strong in rigidity and is commonly used in each mechanical device, a model generally adopts a plastic driving shaft, and the metal driving shaft has the characteristics of heavy weight, high cost and light weight and low cost.

However, the driving shaft is wide in use, different lengths are used in different mechanical transmission devices, the existing driving shaft is inconvenient to adjust the length of the driving shaft, the driving shaft and a power source connecting structure are complex, the dismounting is troublesome, and the replacement is inconvenient, so that the overall practicability is reduced, and therefore, the driving shaft convenient to replace is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a driving shaft convenient to change to it is not convenient for adjust the length of driving shaft to propose current driving shaft among the above-mentioned background art to the driving shaft is comparatively complicated with power supply connection structure, and the dismouting is troublesome, is not convenient for change, thereby has reduced the problem of holistic practicality.

In order to achieve the above object, the utility model provides a following technical scheme: a driving shaft convenient to replace comprises a first driving shaft, a second driving shaft and extension strips, wherein a connecting shaft is connected in the first driving shaft, the other end of the connecting shaft is connected with the second driving shaft, the outer surface of the first driving shaft is connected with the extension strips, tooth blocks are arranged in the extension strips, a rack is connected to the inner surface of the first driving shaft, a groove is formed in the outer surface of the rack, a sleeve is arranged at the front end of the first driving shaft, a limiting block is connected in the sleeve, a movable groove is formed in the first driving shaft, a clamping plate is connected in the movable groove, a connecting block is arranged at the bottom end of the clamping plate, a spring is connected to the bottom surface of the connecting block, a driven connecting rod is connected in the connecting block, one end of the driven connecting rod is connected with a movable connecting rod, one end of the movable connecting rod is connected with a driving connecting rod, and a movable shaft is connected in the driving connecting rod, and the movable shaft is connected to the inner surface of the first driving shaft.

Preferably, the first driving shaft and the second driving shaft are in the same structure, and the first driving shaft and the second driving shaft are movably connected with the connecting shaft.

Preferably, the inner surface of the first driving shaft is provided with racks at equal intervals, and the racks are connected with the extension bar block in a fitting manner.

Preferably, the left end and the right end of the connecting shaft are symmetrically provided with extension bar blocks, and tooth blocks are distributed on the outer surface of each extension bar block at equal intervals.

Preferably, the sleeve is internally provided with limiting blocks at equal intervals, the limiting blocks are rotatably connected with the sleeve, and the limiting blocks are attached to the tooth blocks.

Preferably, the connecting block is in sliding connection with the first driving shaft, and the connecting block is in rotating connection with the driven connecting rod.

Preferably, the driving connecting rod is movably connected with the extension bar block, and the driving connecting rod, the moving connecting rod and the driven connecting rod form a rotating structure.

Compared with the prior art, the beneficial effects of the utility model are that: this driving shaft convenient to change:

1. the clamping plate is arranged at the output end of the driving shaft and is linked with the connecting rods, so that the clamping plate is convenient to stretch and retract, the clamping plate is connected with the power source, axial fixation can be completed, and the clamping plate is convenient to adjust and control in a connecting mode of the driving connecting rods and the extending strips, so that the overall assembly and disassembly efficiency of the driving shaft is improved;

2. through setting up the driving shaft into split type to use connecting axle interconnect, can adjust control to the length of driving shaft, can make the driving shaft adapt to different mechanical equipment, and under the connection of tooth piece and rack, can carry out the axial spacing while, can also make driving shaft and connecting axle carry out horizontal spacing fixed.

Drawings

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

FIG. 2 is an enlarged schematic view of the area A of FIG. 1 according to the present invention;

FIG. 3 is a schematic side view of the first driving shaft and the extension bar of the present invention;

fig. 4 is a schematic view of the structure of the rack and the tooth block in a top view.

In the figure: 1. a first drive shaft; 2. a connecting shaft; 3. a second driving shaft; 4. an extension bar block; 5. a sleeve; 6. a limiting block; 7. a movable groove; 8. clamping a plate; 9. connecting blocks; 10. a spring; 11. a driven connecting rod; 12. moving the connecting rod; 13. a drive link; 14. a movable shaft; 15. a rack; 16. a groove; 17. a tooth block.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a driving shaft convenient to replace comprises a first driving shaft 1, a second driving shaft 3 and extension blocks 4, wherein a connecting shaft 2 is connected in the first driving shaft 1, the other end of the connecting shaft 2 is connected with the second driving shaft 3, the outer surface of the first driving shaft 1 is connected with the extension blocks 4, the extension blocks 4 are internally provided with tooth blocks 17, the inner surface of the first driving shaft 1 is connected with a rack 15, the outer surface of the rack 15 is provided with a groove 16, the front end of the first driving shaft 1 is provided with a sleeve 5, the inner part of the sleeve 5 is connected with a limiting block 6, the first driving shaft 1 is internally provided with a movable groove 7, the movable groove 7 is internally connected with a clamping plate 8, the bottom end of the clamping plate 8 is provided with a connecting block 9, the bottom surface of the connecting block 9 is connected with a spring 10, the connecting block 9 is internally connected with a driven connecting rod 11, one end of the driven connecting rod 11 is connected with a movable connecting rod 12, one end of the movable connecting rod 12 is connected with a driving connecting rod 13, and a movable shaft 14 is connected to the inside of the driving link 13, and the movable shaft 14 is connected to the inner surface of the first motive shaft 1.

The first driving shaft 1 and the second driving shaft 3 are in the same structure, the first driving shaft 1 and the second driving shaft 3 are movably connected with the connecting shaft 2, and the first driving shaft 1 and the second driving shaft 3 can respectively slide on the outer surface of the connecting shaft 2, so that the length of the whole driving shaft can be conveniently adjusted, and the driving shaft is symmetrical in position and uniform in stress, can well complete the transmission work of the driving shaft, and improves the stability of the whole driving shaft;

the racks 15 are distributed on the inner surface of the first driving shaft 1 at equal intervals, the racks 15 are connected with the extension bar blocks 4 in an attaching mode, the racks 15 on the inner surface of the first driving shaft 1 are attached to the extension bar blocks 4, the first driving shaft 1 can be axially fixed, the axial transmission force of the first driving shaft 1 is increased, the connecting mode is simple, and the first driving shaft 1 can be conveniently disassembled and assembled;

the left end and the right end of the connecting shaft 2 are symmetrically provided with the extending strip blocks 4, the outer surfaces of the extending strip blocks 4 are equidistantly distributed with the tooth blocks 17, the connecting shaft 2 can be conveniently connected with the first driving shaft 1 and the second driving shaft 3 by arranging the extending strip blocks 4 at the left end and the right end, axial limiting and fixing are carried out, meanwhile, the tooth blocks 17 are arranged on the outer surfaces of the extending strip blocks 4, the tooth blocks 17 are connected with the limiting blocks 6, transverse horizontal fixing can be carried out on the connecting shaft 2 and the first driving shaft 1 and the second driving shaft 3, and therefore connecting stability is improved;

the limiting blocks 6 are distributed in the sleeve 5 at equal intervals, the limiting blocks 6 are rotatably connected with the sleeve 5, the limiting blocks 6 are connected with the tooth blocks 17 in a fitting manner, the sleeve 5 is arranged at the tail end positions of the first driving shaft 1 and the second driving shaft 3, the limiting blocks 6 rotate along the outer surface of the sleeve 5, the position of the extension strip block 4 can be positioned and fixed, and meanwhile, the extension strip block can be separated in a rotating manner, so that the connection stability is improved;

the connecting block 9 is in sliding connection with the first driving shaft 1, the connecting block 9 is in rotating connection with the driven connecting rod 11, and under the influence of the driven connecting rod 11, the connecting block 9 can slide along the inner surface of the first driving shaft 1, so that the clamping plate 8 stretches into the first driving shaft 1, the connection and the disconnection of the output end of the first driving shaft 1 are facilitated, and meanwhile, the resetting of the clamping plate 8 is facilitated under the action of the spring 10;

drive connecting rod 13 is swing joint with extending a piece 4, and drive connecting rod 13 constitutes rotating-structure with removal connecting rod 12 and driven connecting rod 11, and drive connecting rod 13 can use loose axle 14 to rotate as the central point under the extrusion of extending a piece 4 to link driven connecting rod 11 and extrude connecting block 9, control the flexible of cardboard 8 through the extruded mode, thereby increased the whole dismouting convenience of driving shaft.

The working principle is as follows: when the driving shaft convenient to replace is used, firstly, a first driving shaft 1 and a second driving shaft 3 correspond to the position of a power source, then, extending strips 4 at the left end and the right end of a connecting shaft 2 are used for extruding a driving connecting rod 13, the driving connecting rod 13 rotates along the central point of a movable shaft 14 and is used for connecting a movable connecting rod 12 and a driven connecting rod 11, so that the driven connecting rod 11 extrudes a connecting block 9, the connecting block 9 slides along the inner surfaces of movable grooves 7 of the first driving shaft 1 and the second driving shaft 3, the position of a clamping plate 8 corresponds to the connecting position of the power source, then, the extending strips 4 are separated from the driving connecting rod 13, under the action of a spring 10, the positions of the driven connecting rod 11, the movable connecting rod 12 and the driving connecting rod 13 are reset, the clamping plate 8 is clamped to the connecting position of the power source, when the driving shaft is required to be disassembled and assembled, the extending strips 4 extrude the driving connecting rod 13 according to the steps, and take first driving shaft 1 out can, when the length to first driving shaft 1 and second driving shaft 3 was adjusted to needs, control first driving shaft 1 and second driving shaft 3 and slide along extending 4 surfaces of strip, when length adjustment completion back, stopper 6 card of rotating sleeve 5 surface was gone into between two tooth pieces 17, at the pivoted in-process, the recess 16 of rack 15 cooperation surface can provide the activity space for stopper 6 to holistic practicality has been increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a driving shaft convenient to change, includes first driving shaft (1), second driving shaft (3) and extension strip piece (4), its characterized in that: the connecting shaft (2) is connected in the first driving shaft (1), the other end of the connecting shaft (2) is connected with the second driving shaft (3), the outer surface of the first driving shaft (1) is connected with an extension strip block (4), a tooth block (17) is arranged in the extension strip block (4), the inner surface of the first driving shaft (1) is connected with a rack (15), a groove (16) is formed in the outer surface of the rack (15), a sleeve (5) is arranged at the front end of the first driving shaft (1), a limiting block (6) is connected in the sleeve (5), a movable groove (7) is arranged in the first driving shaft (1), a clamping plate (8) is connected in the movable groove (7), a connecting block (9) is arranged at the bottom end of the clamping plate (8), a spring (10) is connected to the bottom surface of the connecting block (9), a driven connecting rod (11) is connected in the connecting block (9), and one end of the driven connecting rod (11) is connected with a movable connecting rod (12), one end of the movable connecting rod (12) is connected with a driving connecting rod (13), a movable shaft (14) is connected in the driving connecting rod (13), and the movable shaft (14) is connected to the inner surface of the first driving shaft (1).

2. A readily replaceable drive shaft according to claim 1 wherein: the first driving shaft (1) and the second driving shaft (3) are of the same structure, and the first driving shaft (1) and the second driving shaft (3) are movably connected with the connecting shaft (2).

3. A readily replaceable drive shaft according to claim 1 wherein: the rack (15) is distributed on the inner surface of the first driving shaft (1) at equal intervals, and the rack (15) is connected with the extension strip block (4) in an attaching mode.

4. A readily replaceable drive shaft according to claim 1 wherein: the left end and the right end of the connecting shaft (2) are symmetrically provided with extension bar blocks (4), and tooth blocks (17) are distributed on the outer surface of each extension bar block (4) at equal intervals.

5. A readily replaceable drive shaft according to claim 1 wherein: equidistant distribution has stopper (6) in sleeve (5), and stopper (6) are connected for rotating with sleeve (5) to stopper (6) are connected for laminating with tooth piece (17).

6. A readily replaceable drive shaft according to claim 1 wherein: the connecting block (9) is in sliding connection with the first driving shaft (1), and the connecting block (9) is in rotating connection with the driven connecting rod (11).

7. A readily replaceable drive shaft according to claim 1 wherein: the driving connecting rod (13) is movably connected with the extension bar block (4), and the driving connecting rod (13), the moving connecting rod (12) and the driven connecting rod (11) form a rotating structure.

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