CN213655522U

CN213655522U - Ball cage coupling capable of automatically returning

Info

Publication number: CN213655522U
Application number: CN202022375383.4U
Authority: CN
Inventors: 张晓东
Original assignee: Wuxi Zejia Technology Co ltd
Current assignee: Wuxi Zejia Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-07-09
Anticipated expiration: 2030-10-22

Abstract

The application discloses but ball cage shaft coupling of automatic playback, including spline housing, integral key shaft, connection reset spring, connection spindle nose, steel ball, endotheca axle, outer sleeve shaft and spacing mounting structure, the spline housing has been cup jointed in the outside slip of integral key shaft, the one end fixedly connected with of the one end department of integral key shaft connects reset spring's one end, the other end fixedly connected with of connecting reset spring's inner chamber lateral wall department of spline housing, the equal fixedly connected with of one end department of integral key shaft and spline housing connects the spindle nose, two connect the equal fixedly connected with steel ball of spindle nose department. This device is rational in infrastructure, convenient to use, and the volume is less, and the torque is higher, is fit for being used for mechanical equipment's miniaturization, has automatic playback effect simultaneously, and it is more convenient to use, and this device has spacing mounting structure, can be comparatively convenient carry out fixed connection with this shaft coupling and axle through spacing mounting structure, connects easy operation, is fit for using widely.

Description

Ball cage coupling capable of automatically returning

Technical Field

The application relates to a ball cage coupler, in particular to a ball cage coupler capable of automatically returning.

Background

The coupling is also called coupling. Mechanical parts for firmly coupling the driving shaft and the driven shaft in different mechanisms to rotate together and transmitting motion and torque. Sometimes also to couple the shaft with other parts (e.g. gears, pulleys, etc.). Usually, the two halves are combined and fastened to the two shaft ends by a key or a tight fit, and then the two halves are connected in a certain way. The coupling can compensate the offset (including axial offset, radial offset, angular offset or comprehensive offset) between the two shafts due to inaccurate manufacture and installation, deformation or thermal expansion in work and the like; and shock mitigation and absorption.

The existing ball cage coupler and the shaft body are troublesome to fix and inconvenient to disassemble and assemble, so that the replacement and the maintenance are troublesome. Therefore, the ball cage coupling capable of automatically returning is provided for solving the problems.

Disclosure of Invention

A ball cage coupler capable of automatically returning comprises a spline housing, a spline shaft, a connecting reset spring, a connecting shaft head, a steel ball, an inner sleeve shaft, an outer sleeve shaft and a limiting mounting structure;

the outer part of the spline shaft is sleeved with a spline housing in a sliding manner, one end of the spline shaft is fixedly connected with one end of a connecting reset spring, the other end of the connecting reset spring is fixedly connected to the side wall of an inner cavity of the spline housing, one end of the spline shaft and one end of the spline housing are both fixedly connected with connecting shaft heads, steel balls are both fixedly connected to the two connecting shaft heads, an inner sleeve shaft is fixedly arranged inside the outer sleeve shaft, the steel balls are in contact with the inner surface of the inner sleeve shaft, and limiting mounting structures are both fixedly mounted on the two outer sleeve shafts;

the limiting installation structure comprises a cylindrical fixed shell, a limiting fixed spring, a sliding sheet, a thread limiting cap, a guiding sliding rod, an installation rod and a guiding sliding groove, the outer surface of the outer sleeve shaft is fixedly connected with the cylindrical fixed shell, the inner cavity of the cylindrical fixed shell is internally and slidably connected with the sliding sheet, the upper surface of the sliding sheet is fixedly connected with one end of the limiting fixed spring, the other end of the limiting fixed spring is fixedly connected to the upper wall of the inner cavity of the cylindrical fixed shell, the lower surface of the sliding sheet is fixedly connected with the installation rod, the inner cavity walls at two sides of the cylindrical fixed shell are respectively provided with the guiding sliding groove, the side walls at two sides of the sliding sheet are respectively and fixedly connected with one end of the guiding sliding rod, the other ends of the two guiding sliding rods extend to the outside of the wall of the cylindrical fixed shell through the guiding sliding grooves, and the guiding sliding rod is in sliding connection, the arc-shaped wall of the guide sliding rod is provided with a thread groove, and the guide sliding rod is in threaded connection with a thread limiting cap.

Further, mounting hole sites are formed in two sides of the two outer sleeve shafts.

Further, one end of the mounting rod penetrates through the outer wall of the outer sleeve shaft and extends to the inside of the mounting hole.

Furthermore, the limiting installation structure is provided with a plurality of groups, and the limiting installation structure is fixedly installed on the arc-shaped outer wall of the outer sleeve shaft in a cross shape.

Further, the steel ball is made of chromium steel materials.

Further, a lubricant with strong viscosity is coated and arranged at the joint of the steel balls.

The beneficial effect of this application is: the application provides a ball cage coupling that makes things convenient for dismouting to return to original position automatically.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of an internal structure of an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1 according to an embodiment of the present disclosure;

fig. 3 is a schematic side connection structure diagram of a limiting installation structure according to an embodiment of the present application.

In the figure: 1. spline housing, 2, spline shaft, 3, connecting reset spring, 4, connecting shaft head, 5, steel ball, 6, inner sleeve shaft, 7, outer sleeve shaft, 8, mounting hole site, 9, cylindrical fixed shell, 10, spacing fixed spring, 11, slide sheet, 12, screw thread spacing cap, 13, direction slide bar, 14, mounting bar, 15, direction spout.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-3, a ball cage coupling capable of automatic homing comprises a spline housing 1, a spline shaft 2, a connecting reset spring 3, a connecting shaft head 4, a steel ball 5, an inner sleeve shaft 6, an outer sleeve shaft 7 and a limiting installation structure;

the outer part of the spline shaft 2 is sleeved with a spline housing 1 in a sliding manner, one end of the spline shaft 2 is fixedly connected with one end of a connecting reset spring 3, the other end of the connecting reset spring 3 is fixedly connected to the side wall of an inner cavity of the spline housing 1, one end of the spline shaft 2 and one end of the spline housing 1 are both fixedly connected with connecting shaft heads 4, steel balls 5 are fixedly connected to the two connecting shaft heads 4, an inner housing shaft 6 is fixedly arranged inside the outer housing shaft 7, the steel balls 5 are in contact with the inner surface of the inner housing shaft 6, and limiting mounting structures are fixedly mounted on the two outer housing shafts 7;

the limiting installation structure comprises a cylindrical fixed shell 9, a limiting fixed spring 10, a sliding sheet 11, a threaded limiting cap 12, a guiding sliding rod 13, an installation rod 14 and a guiding sliding groove 15, the cylindrical fixed shell 9 is fixedly connected to the outer surface of the outer sleeve shaft 7, the sliding sheet 11 is slidably connected to the inner cavity of the cylindrical fixed shell 9, one end of the limiting fixed spring 10 is fixedly connected to the upper surface of the sliding sheet 11, the other end of the limiting fixed spring 10 is fixedly connected to the upper wall of the inner cavity of the cylindrical fixed shell 9, the installation rod 14 is fixedly connected to the lower surface of the sliding sheet 11, the guiding sliding grooves 15 are formed in the inner cavity walls of the two sides of the cylindrical fixed shell 9, one end of the guiding sliding rod 13 is fixedly connected to the side walls of the two sides of the sliding sheet 11, the other ends of the two guiding sliding rods 13 extend out of the wall of the cylindrical fixed shell 9 through the guiding sliding grooves, the guide sliding rod 13 is connected with the cylindrical fixing shell 9 in a sliding mode through a guide sliding groove 15, a thread groove is formed in the arc-shaped wall of the guide sliding rod 13, and a thread limiting cap 12 is connected to the guide sliding rod 13 in a threaded mode.

Mounting hole positions 8 are formed in the two sides of the two outer sleeve shafts 7; one end of the mounting rod 14 penetrates through the outer wall of the outer sleeve shaft 7 and extends into the mounting hole position 8; the limiting mounting structures are arranged in a plurality of groups, and the limiting mounting structures in the plurality of groups are fixedly mounted on the arc-shaped outer wall of the outer sleeve shaft 7 in a cross shape; the steel ball 5 is made of chromium steel; and a strong viscous lubricant is coated at the joint of the steel ball 5.

When the shaft coupling is used, firstly, an installation groove position with the same size as that of an installation rod 14 is arranged on a shaft body to be connected, two ends of the shaft coupling are respectively connected with two shafts, when the shaft coupling is connected, a guide sliding rod 13 is moved upwards firstly, so that the guide sliding rod 13 drives a sliding sheet 11 to move, and further drives the installation rod 14 to move, the installation rod 14 is moved out of an installation hole position 8, the shaft is inserted into the installation hole position 8, the guide sliding rod 13 is loosened, the sliding sheet 11 is driven to move through the resilience effect of a limiting fixing spring 10, and further drives the installation rod 14 to move and be inserted into the installation groove position of the shaft body, the shaft body is subjected to limiting installation and fixation, after fixation, the thread limiting caps 12 on two sides are rotated, so that the thread limiting caps 12 on the two sides are moved, and further the thread limiting caps 12 on the two sides are respectively abutted against and fixed on the side walls on the two sides of, and then carry out spacing fixed to slide 11, and then drive installation pole 14 and carry out spacing fixed, when needs are dismantled, only need shift up guide slide bar 13 once more for installation pole 14 separates with the axis body, can separate axis body and this shaft coupling, and separation installation easy operation is fit for promoting.

The application has the advantages that:

1. the device has the advantages of reasonable structure, convenient use, small volume, high torque, suitability for miniaturization of mechanical equipment, automatic homing effect and more convenient use;

2. this device has spacing mounting structure, can be comparatively convenient carry out fixed connection with this shaft coupling and axle through spacing mounting structure, connects easy operation, is fit for using widely.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a but ball cage shaft coupling of automatic homing which characterized in that: the spline shaft comprises a spline sleeve (1), a spline shaft (2), a connecting reset spring (3), a connecting shaft head (4), a steel ball (5), an inner sleeve shaft (6), an outer sleeve shaft (7) and a limiting installation structure;

the outer portion of the spline shaft (2) is sleeved with a spline sleeve (1) in a sliding mode, one end of the spline shaft (2) is fixedly connected with one end of a connecting reset spring (3), the other end of the connecting reset spring (3) is fixedly connected to the side wall of an inner cavity of the spline sleeve (1), one end of the spline shaft (2) and one end of the spline sleeve (1) are both fixedly connected with connecting shaft heads (4), two connecting shaft heads (4) are both fixedly connected with steel balls (5), an inner sleeve shaft (6) is fixedly arranged inside the outer sleeve shaft (7), the steel balls (5) are in contact with the inner surface of the inner sleeve shaft (6), and limiting mounting structures are fixedly mounted on the two outer sleeve shafts (7);

the limiting installation structure comprises a cylindrical fixed shell (9), a limiting fixed spring (10), a sliding sheet (11), a threaded limiting cap (12), a guiding sliding rod (13), an installation rod (14) and a guiding sliding groove (15), wherein the outer surface of the outer sleeve shaft (7) is fixedly connected with the cylindrical fixed shell (9), the inner cavity of the cylindrical fixed shell (9) is internally and slidably connected with the sliding sheet (11), the upper surface of the sliding sheet (11) is fixedly connected with one end of the limiting fixed spring (10), the other end of the limiting fixed spring (10) is fixedly connected to the upper wall of the inner cavity of the cylindrical fixed shell (9), the lower surface of the sliding sheet (11) is fixedly connected with the installation rod (14), the inner cavity walls of the two sides of the cylindrical fixed shell (9) are respectively provided with the guiding sliding groove (15), the side walls of the two sides of the sliding sheet (11) are respectively and fixedly connected with one end of the guiding sliding rod (13), two outside the wall that direction slide bar (13) other end all extended to cylindricality set casing (9) through direction spout (15), sliding connection between direction slide bar (13) and cylindricality set casing (9) through direction spout (15), the thread groove has been seted up in the arc wall department of direction slide bar (13), direction slide bar (13) department threaded connection has screw thread stop cap (12).

2. An automatically homing ball cage coupling as set forth in claim 1, wherein: mounting hole sites (8) are arranged on two sides of the two outer sleeve shafts (7).

3. An automatically homing ball cage coupling as set forth in claim 1, wherein: one end of the mounting rod (14) penetrates through the outer wall of the outer sleeve shaft (7) and extends into the mounting hole position (8).

4. An automatically homing ball cage coupling as set forth in claim 1, wherein: the limiting installation structure is provided with a plurality of groups, and the limiting installation structure is fixedly installed on the arc-shaped outer wall of the outer sleeve shaft (7) in a cross shape.

5. An automatically homing ball cage coupling as set forth in claim 1, wherein: the steel ball (5) is made of chromium steel materials.

6. An automatically homing ball cage coupling as set forth in claim 1, wherein: and a strong viscous lubricant is coated at the joint of the steel ball (5).