CN219176757U

CN219176757U - Blind hole output shaft capable of improving transmission efficiency

Info

Publication number: CN219176757U
Application number: CN202223419814.8U
Authority: CN
Inventors: 项亮
Original assignee: Zhangjiagang Jintu Precision Forging Technology Co ltd
Current assignee: Zhangjiagang Jintu Precision Forging Technology Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-13
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a blind hole output shaft capable of improving transmission efficiency, which comprises an output shaft main body and an axial blind hole formed in the output shaft main body, wherein a protective sleeve is sleeved outside the axial blind hole, a filling rod is movably inserted in the protective sleeve, the top end of the filling rod is fixed with a connecting rod, both sides of the connecting rod are provided with buckling grooves, and the bottom end of the filling rod is provided with an extension assembly. Through being provided with the protective sheath outside the axial blind hole, let the protective sheath can form the sealed effect to the axial blind hole, avoid the axial blind hole to expose in daily transportation outside, effectively prevent that external object from directly colliding to the axial blind hole, the detachable filling rod of again cooperates simultaneously, let the filling rod can insert in the axial blind hole, contact to the axial blind hole inner wall, avoided the surface adhesion steam of axial blind hole to take place the corrosion, guaranteed the effective cooperation of axial blind hole and assembly part.

Description

Blind hole output shaft capable of improving transmission efficiency

Technical Field

The utility model relates to the technical field of motors, in particular to a blind hole output shaft capable of improving transmission efficiency.

Background

For the output shaft with the blind hole, the technical scheme of electroplating the surface of the shaft hole in place is adopted in consideration of the condition of preventing the blind hole of the output shaft from rusting, so that the problem that the interior of the shaft hole is easy to rust when the output shaft is exposed to air for a long time or used in an environment with higher humidity can be solved.

The output shaft with the blind hole in the prior art is subjected to surface electroplating treatment, and is improved in a mode of vacuum oil immersion or oil injection in the shaft hole, but the problem that the inside of the shaft hole is rusted cannot be thoroughly solved at the same time, so that rust generated by rusting in the shaft hole can cause size deviation of the threaded hole, and the output shaft is assembled on a component, thereby causing low transmission efficiency.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a blind hole output shaft capable of improving transmission efficiency so as to solve the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a blind hole output shaft that can improve transmission efficiency, includes the output shaft main part and sets up the axial blind hole in the output shaft main part, the outside cover of axial blind hole is equipped with the protective sheath, the activity is pegged graft in the protective sheath has the filling rod, the filling rod top is fixed with the connecting rod, the catching groove has all been seted up to the connecting rod both sides, the filling rod bottom is provided with the extension subassembly.

As a preferable technical scheme of the utility model, the extension assembly comprises a guide chute arranged at the bottom end of the filling rod, guide sliding blocks arranged at two ends of the guide chute, a push block fixed on the outer wall of the bottom end of the guide sliding blocks and a reset spring arranged between the two groups of guide sliding blocks.

As a preferable technical scheme of the utility model, the outer wall of the filling rod is attached to the inner wall of the axial blind hole, and a rubber sleeve is arranged outside the filling rod.

As a preferable technical scheme of the utility model, two ends of the return spring are respectively connected to the outer walls of the two groups of guide sliding blocks, and the two groups of guide sliding blocks are elastically connected through the return spring.

As a preferable technical scheme of the utility model, the width of the guide sliding block is the same as the width of the inner wall of the guide sliding groove, and the guide sliding block is in sliding connection with the guide sliding groove.

As a preferable technical scheme of the utility model, anti-skid grooves are formed in the outer walls of the pushing blocks, and anti-skid lines are formed in the outer walls of the anti-skid grooves.

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

1. through being provided with the protective sheath in the outside of axial blind hole, let the protective sheath can form the closure effect to axial blind hole, avoid the axial blind hole to expose in the external world in daily transportation, effectively prevent that external object from directly colliding to axial blind hole, the detachable filling rod of again cooperatees simultaneously, let the filling rod can insert in the axial blind hole, contact to axial blind hole inner wall, avoided the surface of axial blind hole to adhere steam to take place to rust, guaranteed the effective cooperation of axial blind hole and assembly part;

2. through setting up the mutually supporting at guide chute, guide slider, ejector pad and the reset spring of filling rod bottom, let two sets of guide slider can stretch out and draw back fast, form fast or remove the spacing effect of activity to the filling rod bottom, avoided the filling rod to leave inside the axial blind hole in the use by accident, ensured the normal use of filling rod.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of an active state structure of the present utility model;

FIG. 3 is a schematic view of a partial structure of the present utility model;

FIG. 4 is a schematic view of a partial cross-sectional structure of the present utility model;

FIG. 5 is an enlarged view of FIG. 4A in accordance with the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. an output shaft main body; 2. an axial blind hole; 3. a protective sleeve; 4. a filler rod; 5. a connecting rod; 6. a buckling groove; 7. a guide chute; 8. a guide slide block; 9. a pushing block; 10. a return spring; 11. an anti-skid slot.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

Examples:

as shown in fig. 1-5, a blind hole output shaft capable of improving transmission efficiency comprises an output shaft main body 1 and an axial blind hole 2 formed in the output shaft main body 1, wherein a protective sleeve 3 is sleeved outside the axial blind hole 2, a filling rod 4 is movably inserted in the protective sleeve 3, a connecting rod 5 is fixed at the top end of the filling rod 4, buckling grooves 6 are formed in both sides of the connecting rod 5, and an extension assembly is arranged at the bottom end of the filling rod 4;

through being provided with protective sheath 3 in axial blind hole 2 outside, let protective sheath 3 can form sealed effect to axial blind hole 2, avoid axial blind hole 2 to expose in the daily transportation outside, effectively prevent that external object from directly colliding to axial blind hole 2, cooperate detachable filling rod 4 again simultaneously, let filling rod 4 can insert in the axial blind hole 2, contact to axial blind hole 2 inner wall, avoided axial blind hole 2 surface adhesion steam to take place the corrosion, guaranteed the effective cooperation of axial blind hole 2 and assembly part.

In other embodiments, the extension assembly comprises a guide chute 7 arranged at the bottom end of the filling rod 4, guide sliding blocks 8 arranged at two ends of the guide chute 7, a push block 9 fixed on the outer wall of the bottom end of the guide sliding blocks 8 and a reset spring 10 arranged between the two groups of guide sliding blocks 8;

when the filling rod 4 needs to be taken out, the two groups of pushing blocks 9 are pushed oppositely, the two groups of guide sliding blocks 8 slide along the guide sliding groove 7, the reset spring 10 is subjected to extrusion deformation storage force of the two groups of guide sliding blocks 8, when the two groups of guide sliding blocks 8 are completely retracted into the guide sliding groove 7, the connecting rod 5 can be pulled upwards at the moment, the filling rod 4 drives the two groups of guide sliding blocks 8 to leave the inside of the axial blind hole 2 under the action of the connecting rod 5, so that the sealing of the filling rod 4 to the inside of the axial blind hole 2 is relieved, the operation is repeated reversely, the two groups of guide sliding blocks 8 can pop up along the guide sliding groove 7 under the action of the elasticity of the guide sliding groove 7, the movable limit to the bottom end of the filling rod 4 is formed, and the filling rod 4 is prevented from leaving the inside of the axial blind hole 2 unexpectedly in the use process, so that the normal use of the filling rod 4 is ensured.

In other embodiments, the outer wall of the filling rod 4 is attached to the inner wall of the axial blind hole 2, and a rubber sleeve is arranged outside the filling rod 4;

through this design, reduce the gap between filling rod 4 and the axial blind hole 2, avoided external object to get into inside the axial blind hole 2, ensured the normal use of axial blind hole 2.

In other embodiments, two ends of the return spring 10 are respectively connected to the outer walls of the two sets of guide sliding blocks 8, and the two sets of guide sliding blocks 8 are elastically connected through the return spring 10;

through the design, the two groups of guide sliding blocks 8 can be pushed outwards under the action of the elastic force of the return spring 10, and the two groups of guide sliding blocks 8 have continuous outwards acting force.

In other embodiments, the width of the guide sliding block 8 is the same as the width of the inner wall of the guide sliding groove 7, and the guide sliding block 8 is in sliding connection with the guide sliding groove 7;

through this design, when direction slider 8 slides in along direction spout 7, can prevent effectively that direction slider 8 from taking place to block at the slip in-process, the smoothness nature when having improved direction slider 8 motion.

In other embodiments, the outer walls of the push blocks 9 are provided with anti-skid grooves 11, and the outer walls of the anti-skid grooves 11 are provided with anti-skid lines;

through this design, can increase the frictional force between hand and the ejector pad 9, be convenient for promote ejector pad 9.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a blind hole output shaft that can improve transmission efficiency, includes output shaft main part (1) and sets up axial blind hole (2) on output shaft main part (1), its characterized in that: the novel anti-theft device is characterized in that a protective sleeve (3) is sleeved outside the axial blind hole (2), a filling rod (4) is movably inserted in the protective sleeve (3), a connecting rod (5) is fixed at the top end of the filling rod (4), buckling grooves (6) are formed in two sides of the connecting rod (5), and an extension assembly is arranged at the bottom end of the filling rod (4).

2. A blind hole output shaft for improving transmission efficiency according to claim 1, wherein: the extension assembly comprises a guide chute (7) arranged at the bottom end of the filling rod (4), guide sliding blocks (8) arranged at two ends of the guide chute (7), a pushing block (9) fixed on the outer wall of the bottom end of the guide sliding blocks (8) and a reset spring (10) arranged between the two groups of guide sliding blocks (8).

3. A blind hole output shaft for improving transmission efficiency according to claim 1, wherein: the outer wall of the filling rod (4) is attached to the inner wall of the axial blind hole (2), and a rubber sleeve is arranged outside the filling rod (4).

4. A blind hole output shaft for improving transmission efficiency according to claim 2, wherein: the two ends of the return spring (10) are respectively connected to the outer walls of the two groups of guide sliding blocks (8), and the two groups of guide sliding blocks (8) are elastically connected through the return spring (10).

5. A blind hole output shaft for improving transmission efficiency according to claim 2, wherein: the width of the guide sliding block (8) is the same as the width of the inner wall of the guide sliding groove (7), and the guide sliding block (8) is in sliding connection with the guide sliding groove (7).

6. A blind hole output shaft for improving transmission efficiency according to claim 2, wherein: anti-skid grooves (11) are formed in the outer walls of the pushing blocks (9), and anti-skid lines are formed in the outer walls of the anti-skid grooves (11).