CN214742859U

CN214742859U - Spline shaft of booster pump

Info

Publication number: CN214742859U
Application number: CN202120814002.XU
Authority: CN
Inventors: 朱晓勇
Original assignee: Ruian Xiangyang Machinery Parts Co ltd
Current assignee: Ruian Xiangyang Machinery Parts Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-16
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to a spline shaft of a power-assisted pump, which comprises a body, wherein the two ends of the body are respectively provided with an internal spline and an external spline, the body is divided into a left end and a right end, the surface opposite to one end is provided with a convex column, the surface opposite to the other end is provided with a groove for accommodating the convex column, and the cross section of the convex column is a polygon; the outer surface of the body is provided with a strip-shaped groove, the bottom surface of the strip-shaped groove is provided with two limiting grooves, and the two limiting grooves are respectively positioned on the left end and the right end; the strip-shaped groove is provided with a clamping strip matched with the strip-shaped groove, two ends of the clamping strip are respectively provided with an integrated lug, and the lugs are matched with the limiting grooves; and a middle section is arranged between the left end and the right end. Through setting up the key shaft segmentation, and adjacent section junction is equipped with the card strip, not only with adjacent week longitudinal fixation, still plays the straightness accuracy that detects adjacent section, guarantees the performance of key shaft.

Description

Spline shaft of booster pump

Technical Field

The utility model belongs to the technical field of the key shaft technique and specifically relates to a booster pump integral key shaft.

Background

Used integral key shaft is used for mechanical transmission in the helping hand pump, transmits mechanical torque, and the link of current integral key shaft, the keyway is the wearing and tearing most easily promptly, and the keyway after the impaired influences the performance of integral key shaft, generally need change the integral key shaft, if one end keyway damages to change whole easy wasting of resources. Meanwhile, the length of the conventional key shaft is not adjustable, so that spline shafts with different lengths are required to be equipped for different models or products, the use is inconvenient, and the application range of the key shaft is limited.

SUMMERY OF THE UTILITY MODEL

To the not enough in the background art, the utility model provides a booster pump integral key shaft to overcome above defect.

The utility model provides a technical scheme that its technical problem adopted is:

a spline shaft of a power-assisted pump comprises a body, wherein an inner spline and an outer spline are respectively arranged at two ends of the body, the body is divided into a left end and a right end, a convex column is arranged on the surface opposite to one end of the body, a groove for accommodating the convex column is arranged on the surface opposite to the other end of the body, and the cross section of the convex column is polygonal; the outer surface of the body is provided with a strip-shaped groove, the bottom surface of the strip-shaped groove is provided with two limiting grooves, and the two limiting grooves are respectively positioned on the left end and the right end; the strip-shaped groove is provided with a clamping strip matched with the strip-shaped groove, two ends of the clamping strip are respectively provided with an integrated lug, and the lugs are matched with the limiting grooves; and a middle section is arranged between the left end and the right end.

The end faces of the connecting ends of the left end and the right end are in a tooth shape.

The left end and the right end of the middle section are both in tooth shape, and the two ends are respectively a convex column and a groove.

The convex column is internally provided with a magnetic material, and the clamping strip is made of an iron-containing material. Preferably, the magnetic material is a magnet block.

Due to the adoption of the technical scheme, the problems that one end of the existing spline shaft needs to be integrally replaced when damaged and the application range is limited due to the fact that the length of the spline shaft is fixed are effectively solved. Through setting up the key shaft segmentation, and adjacent section junction is equipped with the card strip, not only with adjacent week longitudinal fixation, still plays the straightness accuracy that detects adjacent section, guarantees the performance of key shaft.

Drawings

Fig. 1 is a schematic structural diagram of the utility model.

Fig. 2 is a schematic view of a sectioning structure of the utility model.

Fig. 3 is a schematic diagram of a multi-section connection state reference structure of the utility model.

Fig. 4 is a schematic view of a partial structure of the utility model.

Detailed Description

Referring to fig. 1-4, the present invention: a spline shaft of a power-assisted pump comprises a body 1, wherein an inner spline 11 and an outer spline 12 are respectively arranged at two ends of the body 1, the body 1 is divided into a left end 2 and a right end 3, a convex column 4 is arranged on the surface opposite to one end of the body, a groove for accommodating the convex column 4 is arranged on the surface opposite to the other end of the body, and the section of the convex column 4 is polygonal; the outer surface of the body 1 is provided with a strip-shaped groove 5, the bottom surface of the strip-shaped groove 5 is provided with two limiting grooves 6, and the two limiting grooves 6 are respectively positioned on the left end 2 and the right end 3; the strip-shaped groove 5 is provided with a clamping strip 7 matched with the strip, two ends of the clamping strip 7 are respectively provided with an integrated lug 71, and the lugs 71 are matched with the limiting grooves 6; and a middle section 8 is arranged between the left end 2 and the right end 3.

The end face of the connecting end of the left end 2 and the right end 3 is in a tooth shape 31.

The left end and the right end of the middle section 8 are both provided with tooth profiles 31, and the two ends are respectively provided with a convex column 4 and a groove. The tooth-shaped surface is arranged between the adjacent sections to be longitudinally connected, and the longitudinal direction of the tooth-shaped surface is the direction vertical to the central line of the spline shaft, so that the force of the axial torque of only the convex column 4 is relieved.

The convex column 4 is internally provided with a magnetic material, and the clamping strip 7 is made of an iron-containing material. Card strip 7 adsorbs through the magnetism principle of adsorbing to be fixed in bar groove 5, and the position that sets up card strip 7 when the installation is fixed is the bearing junction, and consequently the card strip 7 is arranged in bar groove 7 internal fixation firmly, can not deviate from. Generally, if the shaft is too long, a support seat or a plate is selected to support and fix the spline shaft, and a bearing is arranged between the support seat or the plate and the spline shaft and is arranged outside the clamping strip 7.

The utility model discloses the effectual current integral key shaft one end that has improved damages and needs whole change to and integral key shaft length is fixed leads to the limited problem of application scope. The key shaft subsection setting is used for deciding whether the middle section 8 needs to be connected or not according to the actual requirement, or selecting the middle section 8 with the required length. When the integral key shaft has the damage, can realize local change, make full use of avoids the wasting of resources, and practical flexibility is strong. And the joint of the adjacent sections is provided with a clamping strip 7, so that the adjacent sections are longitudinally fixed, the straightness of the adjacent sections is detected, and the service performance of the spline shaft is ensured.

It is to be understood that the above examples are merely illustrative for clarity of description and are not limiting on the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. The utility model provides a booster pump integral key shaft, includes body (1), and the both ends of body (1) are equipped with internal spline (11) and external spline (12) respectively, its characterized in that: the body (1) is divided into a left end (2) and a right end (3), wherein a convex column (4) is arranged on the surface opposite to one end of the body, a groove for accommodating the convex column (4) is arranged on the surface opposite to the other end of the body, and the cross section of the convex column (4) is polygonal; the outer surface of the body (1) is provided with a strip-shaped groove (5), the bottom surface of the strip-shaped groove (5) is provided with two limiting grooves (6), and the two limiting grooves (6) are respectively positioned on the left end (2) and the right end (3); the strip-shaped groove (5) is provided with a clamping strip (7) matched with the strip-shaped groove, two ends of the clamping strip (7) are respectively provided with an integrated lug (71), and the lugs (71) are matched with the limiting grooves (6); a middle section (8) is arranged between the left end (2) and the right end (3).

2. A power assist pump spline shaft as defined in claim 1, wherein: the end face of the connecting end of the left end (2) and the right end (3) is in a tooth shape (31).

3. A power pump spline shaft according to claim 2, wherein: the left end and the right end of the middle section (8) are both provided with tooth shapes (31), and the two ends are respectively provided with a convex column (4) and a groove.

4. A power pump spline shaft according to claim 1, wherein: the convex column (4) is internally provided with a magnetic material, and the clamping strip (7) is made of an iron-containing material.