CN219587954U - Power component output shaft lengthening structure - Google Patents

Abstract

The utility model relates to the technical field of power output, and provides a power element output shaft lengthening structure, which comprises a power element main body with an output shaft, wherein the power element main body comprises an adapter, the adapter is sleeved on the output shaft and is circumferentially fixed with the output shaft, and the end face of a first fastener is connected with the end face of the output shaft through the first fastener; and one end of the extension rod is sleeved on the adapter, the side wall of the extension rod is connected with the side wall of the adapter through a second fastener, and the other end of the extension rod is provided with a connecting part. According to the utility model, the extension bar is connected with the output shaft of the power element through the adapter, so that torque can be effectively transmitted, the output shaft of the power element can be prolonged by the aid of the extension bar, the power element can be installed in a long distance by penetrating through a narrow space area, and the applicability of the power element in a limited space is improved.

Description

Power component output shaft lengthening structure

Technical Field

The utility model relates to the field of power output, in particular to a lengthening structure of a power element output shaft.

Background

The power element, such as steering engine, motor, engine, etc., is connected to other components via the output shaft to control the movement of the other components. By taking a steering engine as an example, signals are input through a signal wire, and the output shaft can be controlled to correspondingly rotate, so that the purpose of controlling other parts (mainly a steering engine rocker arm) to move is achieved. The installation mode, position selection and torque transmission of the steering engine are several important factors which must be considered when the steering engine is used, in a relatively spacious space, the steering engine can be directly installed nearby a moving part through a fastener, and then the output shaft is controlled to correspondingly rotate so as to realize torque transmission more efficiently, however, when the space is relatively limited (such as a long and narrow space), the steering engine cannot be directly installed nearby the moving part due to the size of the steering engine, so that how to design an axially lengthened structure capable of being converted in the long and narrow space and effectively transmitting torque is a problem to be solved urgently.

Disclosure of Invention

The utility model aims to provide a power element output shaft lengthening structure which is used for converting and effectively transmitting torque in a long and narrow space.

The embodiment of the utility model is realized by the following technical scheme:

a power element output shaft extension structure comprising a power element body having an output shaft, comprising:

the adapter is sleeved on the output shaft and circumferentially fixed with the output shaft, and the end face of the first fastener is connected with the end face of the output shaft through the first fastener;

and one end of the extension rod is sleeved on the adapter, the side wall of the extension rod is connected with the side wall of the adapter through a second fastener, and the other end of the extension rod is provided with a connecting part.

Optionally, the extension bar includes the body and links to each other with body one end connector, and the connector is located on the adaptor and both pass through the second fastener is connected.

Optionally, the connector is circumferentially fixed with the adapter.

Optionally, at least one side of the outer wall of the adapter is provided with a limiting boss, and the connector is provided with a limiting notch matched with the limiting boss.

Optionally, two opposite sides of the extension bar are connected with the adapter through the second fastener.

Optionally, the second fastener is a screw, and a countersunk hole for accommodating a head of the screw is formed in the side wall of the extension rod.

Optionally, the connecting portion is in a D-shaped structure, a polygonal structure, a threaded structure, a key groove structure or a spline structure.

The utility model has at least the following advantages and beneficial effects: according to the utility model, the extension bar is connected with the output shaft of the power element through the adapter, so that the torque can be effectively transmitted, the output shaft of the power element can be prolonged by the aid of the extension bar, the power element can be installed remotely by penetrating through a narrow space area, and the applicability of the power element in a limited space is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of an elongated power element output shaft structure provided by the present utility model;

FIG. 2 is a schematic view of the structure of an extension bar;

FIG. 3 is a schematic view of an adaptor;

fig. 4 is a schematic structural view of a power element (steering engine) body;

icon: 1-extension bar, 2-first fastener, 3-washer, 4-adapter piece, 5-power element main body, 6-second fastener, 101-spacing breach, 102-inner wall mating surface, 103-counter bore, 104-body, 105-connecting portion, 401-spacing boss, 402-outer wall mating surface, 403-second screw hole, 404-splined hole, 501-spline, 502-first screw hole.

Detailed Description

Referring to fig. 1-4, a power element output shaft extension includes a power element body 5 having an output shaft, including an adapter 4 and an extension bar 1. In this embodiment, the power element is taken as an example of the steering engine, the adapter 4 is sleeved on the output shaft and is circumferentially fixed with the output shaft, the end part of the output shaft of the steering engine is provided with the spline 501 in this embodiment, the adapter 4 is provided with the spline hole 404 matched with the spline 501, and the circumferential fixation is realized by matching the spline 501 with the spline hole 404, i.e. no relative rotation exists between the adapter 4 and the output shaft.

It is easy to understand that, in other embodiments of the present utility model, the circumferential fixing manner between the adapter 4 and the output shaft is adjusted according to the structure of the end of the output shaft of the actual steering engine, for example, the end of the output shaft is in a D-shaped structure, and then the middle of the adapter 4 is a hole with a D-shaped cross section, that is, the adapter is matched with the D-shaped shaft through the D-shaped hole; similarly, both also include, but are not limited to, mating by threads, mating by keyways, mating by a shaft of a polygonal structure with a bore of a polygonal structure, and the like.

The end face of the first fastener 2 is connected with the end face of the output shaft through the first fastener 2, specifically, the end face of the output shaft is provided with a first threaded hole 502, the first fastener 2 penetrates through the center of the adapter 4 to be connected in the first threaded hole, the adapter 4 is tightly pressed, and the axial fixation of the adapter 4 is achieved, in this embodiment, the first fastener 2 is used by adopting an inner hexagonal socket head cap screw to be matched with the plain washer 3, a person skilled in the art should know that in practical application, a proper bolt or screw can be selected as required, and the elastic washer 3 is prepared to improve the connection tightness and the looseness resistance.

The extension bar 1 comprises a body 104 and a connector connected with one end of the body 104, and it is easy to understand that the diameter of the body 104 can be designed smaller on the premise of meeting the strength requirement so as to be better suitable for a narrow space, the section of the body 104 is generally cylindrical, and the length and the shape of the body 104 can be changed according to practical conditions (for example, the section is square and D-shaped).

The connector is located on the adaptor 4, is connected through the second fastener 6 between the lateral wall of connector and the lateral wall of adaptor 4, and the other end of extension bar 1 is equipped with connecting portion 105, and it is easy to understand that connecting portion 105 is used for connecting the part that needs drive in practical application, and this embodiment is steering wheel rocking arm, and connecting portion 105 can design into other structures such as D style of calligraphy structure, polygonal structure, helicitic texture, keyway structure, spline 501 structure according to actual demand.

It is worth noting that, connect extension bar 1 and power component (steering wheel)'s output shaft through adaptor 4 in this embodiment, can effective transmission moment, the extension bar 1 of setting makes power component's output shaft prolonged moreover, can borrow extension bar 1 to pass the narrow and small region in space, realizes installing power component (steering wheel) remotely, increases power component (steering wheel) in the suitability in the limited space. Secondly, through adaptor 4 and extension bar 1 combination, can change power component (steering wheel) output interface type, in addition, the disconnect-type structure of extension bar 1 and adaptor 4 can greatly reduce its processing degree of difficulty, can finely tune the tolerance of the inside splined hole 404 of adaptor 4, makes it more inseparable with steering wheel output shaft cooperation.

The outer wall mating surface 402 of the adaptor 4 is mated with the inner wall mating surface 102 of the connector, further, the outer wall mating surface 402 of the adaptor 4 is circumferentially fixed with the inner wall mating surface 102 of the connector, specifically, the circumferential fixing manner of this embodiment is as follows, at least one side of the outer wall of the adaptor 4 is provided with a limit boss 401, the connector is provided with a limit notch 101 mated with the limit boss 401, both opposite sides of the adaptor 4 are provided with limit bosses 401, and in other embodiments, the number of the limit bosses 401 can be increased or decreased.

In other embodiments of the present utility model, if the space is limited, the space between the outer wall mating surface 402 of the adapter 4 and the inner wall mating surface 102 of the connector may be implemented in other manners, for example, the outer wall mating surface 402 of the adapter 4 and the inner wall mating surface 102 of the connector are designed to be a polygonal structure or a D-shaped structure.

The two opposite sides of the connector in this embodiment are connected with the adaptor 4 through the second fastener 6, so as to realize the axial fixation of the extension bar 1, specifically, the second fastener 6 adopts an inner hexagonal countersunk head screw, the outer wall of the adaptor 4 is provided with a second threaded hole 403, the side wall of the connector is provided with a countersunk head hole 103 for accommodating the head of the screw, and similarly, those skilled in the art should know that in practical application, a suitable bolt or screw can be selected as appropriate, and an elastic washer 3 is configured to improve the connection tightness and the anti-loose property.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. A power element output shaft extension structure including a power element body having an output shaft, comprising:

the adapter is sleeved on the output shaft and circumferentially fixed with the output shaft, and the end face of the first fastener is connected with the end face of the output shaft through the first fastener;

and one end of the extension rod is sleeved on the adapter, the side wall of the extension rod is connected with the side wall of the adapter through a second fastener, and the other end of the extension rod is provided with a connecting part.

2. The power element output shaft extension structure according to claim 1, wherein: the extension bar comprises a body and a connector connected with one end of the body, wherein the connector is arranged on the adapter and is connected with the adapter through the second fastener.

3. The power element output shaft extension structure according to claim 2, wherein: the connector and the adapter are circumferentially fixed.

4. A power element output shaft extension structure according to claim 3 wherein: the outer wall of the adapter is provided with a limit boss on at least one side, and the connector is provided with a limit notch matched with the limit boss.

5. A power element output shaft extension structure according to any one of claims 1-4 wherein: and two opposite sides of the extension rod are connected with the adapter through the second fastening piece.

6. A power element output shaft extension structure according to any one of claims 1-4 wherein: the second fastening piece is a screw, and a countersunk hole for accommodating the head of the screw is formed in the side wall of the extension rod.

7. A power element output shaft extension structure according to any one of claims 1-4 wherein: the connecting part is in a D-shaped structure, a polygonal structure, a threaded structure, a key groove structure or a spline structure.