CN218780668U

CN218780668U - Radial pin coupling

Info

Publication number: CN218780668U
Application number: CN202223232330.2U
Authority: CN
Inventors: 王文娜; 王金辉; 赵彪; 魏琪
Original assignee: Shanghai Beishi Electromechanical Technology Co ltd
Current assignee: Shanghai Beishi Electromechanical Technology Co ltd
Priority date: 2022-12-04
Filing date: 2022-12-04
Publication date: 2023-03-31
Anticipated expiration: 2032-12-04

Abstract

The application discloses a radial pin coupling. The radial pin coupling includes: the claw disc group comprises a first claw disc and a second claw disc, and a plurality of column pin holes arranged along the circumferential direction of the claw disc group are arranged between the first claw disc and the second claw disc; a pin, one pin hole for receiving at least one pin; the number of the pressing sheets is at least two, and each pressing sheet is arranged on the claw disk group in the circumferential direction and is connected with one of the first claw disk or the second claw disk in the claw disk group; one pressing plate is used for abutting against one end of at least one pin close to the outer circle of the claw disk group and used for limiting the pin to move in the radial pressing plate direction. The utility model provides a radial pin shaft coupling carries out the fixed of pin through the mode that sets up a plurality of preforming, adopts this kind of structure, when changing the pin at every turn, can only dismantle the preforming that the pin that needs to be changed put, need not dismantle whole preforming.

Description

Radial pin coupling

Technical Field

The application relates to the technical field of couplings, in particular to a radial pin coupling.

Background

The outer ring of the pin can be provided with a limiting ring in order to prevent the pin from radially falling off in the existing radial pin coupler, and the limiting ring is installed on a wheel hub.

The existing radial pin coupler has the following problems that when the coupler is installed, a plurality of pins which are uniformly distributed on the circumference need to be inserted into pin holes, and then a limiting ring needs to be installed. However, when the pin is mounted, the pin located below the circumference is not positioned and is easily detached, and a plurality of persons are required to assist the mounting.

In addition, the limiting ring is a whole ring, the limiting ring and the hub need to have a certain matching relationship, the matching clearance is too large, the limiting ring is easy to shake, light people generate noise, and serious people easily move axially, so that the pin falls off. Too small a fit clearance will affect the radial error compensation capability of the coupling.

It is therefore desirable to have a solution that overcomes or at least alleviates at least one of the above-mentioned drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to provide a radial pin coupling which overcomes or at least mitigates at least one of the above-mentioned disadvantages of the prior art.

To achieve the above object, the present application provides a radial pin coupling, which includes:

the claw disc group comprises a first claw disc and a second claw disc, and a plurality of column pin holes arranged along the circumferential direction of the claw disc group are arranged between the first claw disc and the second claw disc;

a pin hole for receiving at least one pin;

the number of the pressing sheets is at least two, and each pressing sheet is arranged on the claw disk group in the circumferential direction and is connected with one of the first claw disk or the second claw disk in the claw disk group; wherein the content of the first and second substances,

and one pressing plate is used for abutting against one end of at least one pin close to the outer circle of the claw disk group and used for limiting the pin to move in the radial pressing direction.

Optionally, the set of dog discs comprises:

the first claw disc comprises a first claw disc body and a plurality of first claws extending from one surface of the first claw disc body to the direction far away from the surface, and a first space is formed between every two adjacent first claws;

and the second claw disc comprises a second claw disc body and a plurality of second claws extending from one surface of the second claw disc body to the direction far away from the surface, one second claw extends into one first space, one pin hole is formed between the second claw and one of the two adjacent first claws, and the other pin hole is formed between the second claw and the other of the two adjacent first claws.

Optionally, one pin abuts only one of the press plates or one pin abuts both of the press plates.

Optionally, one pressure plate has a spacing from its adjacent pressure plate in the circumferential direction of the set of dog disks.

Optionally, a receiving groove is arranged on the first claw and/or the second claw;

the part of the pressing sheet, which is contacted with the first claw, is positioned in the accommodating groove of the first claw;

the part of the pressing sheet contacting with the second claw is positioned in the accommodating groove of the second claw.

Optionally, the pressing sheet comprises a pressing sheet body and an extension portion, the pressing sheet body is an arc section, and the extension portion is located on one axial side of the pressing sheet body and connected with the pressing sheet body (31).

Optionally, the number of the extending portions is at least two, and each extending portion on the same tabletting body is connected with the first claw or each extending portion on the same tabletting body is connected with the second claw.

Optionally, the first jaw is provided with a connecting hole for connecting with an extending part through a screw, and the connecting hole is arranged at a position of the first jaw close to the end part of the first jaw disc body;

the second claw is provided with a connecting hole used for being connected with the extending portion through a screw, and the connecting hole is formed in the position, close to the end portion of the second claw disc body, of the second claw.

Optionally, the extension part is connected with a connecting hole on the first claw through the screw or the extension part is connected with a connecting hole on the second claw through the screw;

the radial pin coupling further includes a washer disposed between the extension and the first jaw or the washer disposed between the extension and the second jaw.

Optionally, the radial pin coupling further comprises two hubs, one hub is used for connecting with the first claw disk, and the other hub is used for connecting with the second claw disk; a hub connected with the first claw disc at least partially penetrates through the inner hole of the first claw disc body and/or a hub connected with the second claw disc at least partially penetrates through the inner hole of the second claw disc body, and the part of the hub penetrating through the inner hole of the first claw disc body and/or the part of the hub penetrating through the inner hole of the second claw disc body are called supporting parts;

one end of the pin far away from the pressing sheet abuts against the supporting portion.

The utility model provides a radial pin shaft coupling carries out the fixed of pin through the mode that sets up a plurality of preforming, for prior art, has following advantage:

(1) When the pin is replaced each time, only the pressing sheet at the position of the pin to be replaced can be detached, and all the pressing sheets do not need to be detached;

(2) Compared with the prior art, this application adopts the preforming of sectional type, can solve prior art, before the spacing ring installation, when the installation pin, the pin that is located the below falls out the problem easily.

Drawings

Fig. 1 is a schematic structural view of a radial pin coupling according to a first embodiment of the present application.

Fig. 2 is a schematic view of the first dog plate of the radial pin coupling of fig. 1.

Fig. 3 is a schematic view of the structure of the second dog plate in the radial pin coupling shown in fig. 1.

Fig. 4 is a schematic view of a radial pin coupling according to a second embodiment of the present application.

Fig. 5 is a schematic view of the radial pin coupling of fig. 4 after the hub has been installed.

Fig. 6 is another schematic view of a radial pin coupling according to a third embodiment of the present application.

Fig. 7 is a schematic view of the connection structure of the first claw disk and the hub of the radial pin coupling of the embodiment shown in fig. 6.

Fig. 8 is a schematic cross-sectional view of a radial pin coupling according to the radial pin coupling shown in fig. 7.

Reference numerals

1	Pin hole	2	Pin pin
				3	Tablet press	4	First claw disk
41	First claw disk body	42	First jaw
				5	Second claw disk	51	Second claw disk body
52	Second jaw	6	Accommodating tank
				31	Tablet body	32	Extension part
7	Connecting hole	8	Wheel hub
				9	Supporting part

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. 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. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be considered limiting of the scope of the present application.

Fig. 1 is a schematic structural view of a radial pin coupling according to a first embodiment of the present application. Fig. 2 is a schematic view of the first dog plate of the radial pin coupling of fig. 1. Fig. 3 is a schematic view of the structure of the second dog plate in the radial pin coupling shown in fig. 1. Fig. 4 is a schematic view of a radial pin coupling according to a second embodiment of the present application. Fig. 5 is another schematic view of the radial pin coupling of fig. 4. Fig. 6 is another schematic view of the radial pin coupling of fig. 5. Fig. 7 is a schematic view of a first dog plate of a radial pin coupling according to a third embodiment of the present application. Fig. 8 is a schematic cross-sectional view of a radial pin coupling according to the radial pin coupling shown in fig. 7.

The radial pin coupling shown in fig. 1 to 7 comprises a claw disc group, a pin 2 and a pressing plate 3, wherein the claw disc group comprises a first claw disc and a second claw disc, and a plurality of pin holes 1 arranged along the circumferential direction of the claw disc group are arranged between the first claw disc and the second claw disc; a pin bore for receiving at least one pin; the number of the pressing sheets 3 is at least two, and each pressing sheet 3 is circumferentially arranged on the claw disk group and is connected with one of the first claw disk or the second claw disk in the claw disk group; wherein one presser plate 3 is used for abutting against one end of at least one pin 2 close to the outer circle of the claw disc group and used for limiting the pin 2 to move towards the presser plate in the radial direction.

(1) When the pin is replaced each time, only the pressing sheet at the pin position to be replaced can be detached, and all the pressing sheets do not need to be detached;

(2) Compared with the prior art, the sectional type pressing sheet is adopted, and the problem that a pin located below is easy to fall out in the prior art can be solved.

In the present embodiment, the claw disc group includes the first claw disc 4 and the second claw disc 5, the first claw disc 4 includes a first claw disc body 41 and a plurality of first claws 42 extending from one face of the first claw disc body 41 in a direction away from the face, and a first space is formed between each two adjacent first claws 42;

the second claw disk 5 includes a second claw disk body 51 and a plurality of second claws 52 extending from one surface of the second claw disk body 51 in a direction away from the surface, one second claw 52 extending into one of the first spaces, one pin hole 1 being formed between the second claw 52 and one of the two first claws adjacent thereto, and the other pin hole 1 being formed between the second claw and the other of the two first claws adjacent thereto.

Referring to fig. 5, in the embodiment shown in fig. 5, one pin 2 abuts only one presser plate 3.

In this embodiment, one tab may abut against multiple pins, and one tab covers at least two adjacent fingers on a single finger plate. In other embodiments, it is also possible that one press plate abuts only one pin.

When a pressing sheet abuts against a pin, the pin can be replaced, and the pressing sheet can be detached more pertinently.

In this embodiment, the pressing piece is detachably connected to the first claw or the second claw, for example, by a screw.

Referring to fig. 1, in the embodiment shown in fig. 1, a pin 2 abuts two press plates 3. In this way, when one pressing sheet is loosened to some extent, the other pressing sheet can be prevented from being capable of ensuring that the position of the pin is limited, so that the pin is prevented from being loosened.

Referring to fig. 1 and 4, in the present embodiment, one pressing piece 3 has a space from the pressing piece 3 adjacent thereto in the circumferential direction of the claw disc group. In this way, the distance between two adjacent pressing sheets in the circumferential direction is known, when the pin is worn, the distance between the two adjacent pressing sheets in the circumferential direction becomes smaller (things clamped between two objects are small, and the two objects are certainly closer), the wear loss of the pin can be obtained in this way, and when the wear loss is larger, the pin can be replaced in time.

Referring to the embodiment shown in fig. 1, in this embodiment, the distance between two adjacent pressing plates in the circumferential direction can be set according to the wear amount allowed by the pin, for example, the wear amount allowed by the pin is 0.2mm, the distance between the pressing plate a and the pressing plate B in the circumferential direction is 0.2mm, when the pin is worn by 0.2mm, the two adjacent pressing plates start to contact in the circumferential direction, which indicates that the wear of the pin has reached the extent that needs to be replaced. By adopting the mode, workers can see the abrasion condition of the pin by a naked eye detection method, the overhaul of the workers is convenient, and the requirement on the technical level of the workers is low.

It is understood that the wear amounts of the plurality of pins on the circumference are not necessarily uniform, and if the pressing plate is provided on each of the claws, the distance between the circumferences of the two pressing plates corresponding to the pins which are worn more is smaller, and therefore, in another embodiment, the distance between the pressing plate a and the pressing plate B in the circumferential direction can be appropriately adjusted.

In the present embodiment, the first claw 42 and/or the second claw 52 are provided with receiving grooves 6;

the contact part of the pressing sheet 3 and the first claw 42 is positioned in the accommodating groove 6 of the first claw 42;

the portion of the pressing piece 3 contacting the second claw 52 is located in the receiving groove 6 of the second claw 52.

Referring to fig. 1 and 4, since the pressing sheet is fixed by a single screw, the screw is easy to rotate, and after the groove is formed, the two side surfaces (left and right directions in fig. 4) of the pressing sheet can be limited by the accommodating groove, so that the pressing sheet is prevented from rotating unnecessarily.

Referring to fig. 4 and 5, in the embodiment shown in fig. 4 and 5, the pressing plate 3 includes a pressing plate body 31 and an extending portion 32, and the extending portion 32 is located on one axial side of the pressing plate body 31 and connected to the pressing plate body 31. In the present embodiment, the pressing sheet body 31 is a circular arc segment.

Referring to fig. 4, in the embodiment shown in fig. 4, the number of the extending portions is two, and it is understood that in other embodiments, the number of the extending portions may also be set according to needs, for example, the number of the extending portions may also be one or other numbers.

Referring to fig. 4, in this embodiment, each extension on the same wafer body is connected to the first finger 42 or each extension on the same wafer body is connected to the second finger 52. Specifically, because the first jaw 42 and the second jaw 52 need to be able to move relative to each other, the extensions on the same wafer body need to be connected to not only the first jaw 42, but also the second jaw 52, and not to the first jaw, and to the second jaw. In this embodiment, when the extension portion of the pressing plate body is connected with the first claw, one first claw is connected with only one extension portion of the pressing plate body; when the extension part of the tablet pressing body is connected with the second claws, one second claw is connected with only one extension part of the tablet pressing body.

In the present embodiment, the first claw 42 is provided with a connection hole 7 for screw connection with the extension portion 32, the connection hole 7 being provided at a position of the first claw 42 near the end of the first claw disk body 41;

the second claw 52 is provided with a connecting hole 7 for connecting the extending portion 52 by a screw, and the connecting hole 7 is provided at a position of the second claw 52 near an end of the second claw disk body 51.

Referring to fig. 5, in the present embodiment, the number of the extended portions 32 of the pressing sheet is the same as the number of the claws on the claw disk covered by the pressing sheet, and the circumferential angle of two adjacent extended portions is the same as the angle of two adjacent first claws (or second claws) on the claw disk.

In the present embodiment, the connecting hole is installed at the above position, which has the advantage that the connecting hole corresponding to the pressing piece is installed at the position of the second claw 52 close to the end of the second claw disk body 51 (or the position of the first claw close to the end of the first claw disk body) with the center line of the pin hole as the axial center and the center position as the theoretical maximum stress point, so that the loosening of the screw can be effectively prevented. (if the force is greatest in the middle of the second jaw 52 or the first jaw, it is easily loosened, and if the jaws behave as cantilever beams on the side away from the second jaw plate body, it is easily deformed, which may also lead to loosening of the screw).

In the present embodiment, the extension portion 32 is connected to the connection hole 7 of the first claw 42 by a screw or the extension portion 32 is connected to the connection hole 7 of the second claw 52 by a screw;

the radial pin coupling further comprises a washer arranged between the extension 32 and the first jaw 42 or between said extension 32 and the second jaw 52.

In this application, it is desirable that the wafer be connected only to the jaw to which it is connected (either the first jaw or the second jaw), and the wafer can be lifted by providing a spacer so that it does not interfere with the jaw that is not connected.

In this embodiment, the first claw disk and the second claw disk may have the same or different structures.

Referring to fig. 2, in the embodiment shown in fig. 2, the inner ring of the first claw disk body of the first claw disk is provided with a support part extending in the extending direction of the first claw, and in the embodiment, one end of the pin far away from the pressing plate is abutted by the support part, so that the pressing plate and the support part form a limit in the radial direction of the pin.

It will be appreciated that in other embodiments, the support portion may also be provided on the second jaw plate body.

Referring to fig. 5, the radial pin coupling of the present application further comprises hubs 8, in this embodiment a first dog disk body is connected to one hub 8 and a second dog disk body is connected to the other hub 8.

Referring to fig. 6 to 8, in this embodiment, the hub 8 connected to the first claw disk at least partially passes through the inner hole of the first claw disk body 41 and/or the hub 8 connected to the second claw disk at least partially passes through the inner hole of the second claw disk body 51, and a portion of the hub 8 passing through the inner hole of the first claw disk body 41 and/or a portion of the hub 8 passing through the inner hole of the second claw disk body 51 is referred to as a support portion 9;

the end of the pin 2 remote from the pressure plate 3 abuts against the support 9.

By adopting the mode, the first claw disc and the second claw disc can be conveniently machined, the supporting part does not need to be specially machined, and the cylindrical surface of the hub is used as the supporting part.

It will be appreciated that in various embodiments, the two hubs of the present application do not interfere with each other, i.e., do not interfere with the relative rotation of the two.

It will be appreciated that in one embodiment, the first dog collar may be integrally formed with the hub.

In this embodiment, the first claw disc and the second claw disc may be respectively connected to the flange hub through bolts to form a half-coupling, and the flange hub is provided with a hole that can be installed on a shaft extension of the driving end or the driven end.

By adopting the mode, the fluted disc can be processed into a standard part, and the aperture and the length of the flange hub only need to be changed according to different installation shaft diameters.

Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A radial pin coupling, comprising:

the claw disc set comprises a first claw disc and a second claw disc, and a plurality of column pin holes (1) arranged along the circumferential direction of the claw disc set are arranged between the first claw disc and the second claw disc;

a pin (2), one pin hole for receiving at least one pin;

the number of the pressing sheets (3) is at least two, and each pressing sheet (3) is arranged on the claw disk group in the circumferential direction and is connected with one of the first claw disk or the second claw disk in the claw disk group; wherein the content of the first and second substances,

one pressing plate (3) is used for abutting against one end of at least one pin (2) close to the outer circle of the claw disc group and used for limiting the pin (2) to move in the radial pressing direction.

2. The radial pin coupling of claim 1, wherein said set of dog disks comprises:

a first jaw plate (4), the first jaw plate (4) comprising a first jaw plate body (41) and a plurality of first jaws (42) extending from one face of the first jaw plate body (41) in a direction away from the face, a first space being formed between each two adjacent first jaws (42);

a second claw disk (5), wherein the second claw disk (5) comprises a second claw disk body (51) and a plurality of second claws (52) extending from one surface of the second claw disk body (51) to the direction far away from the surface, one second claw (52) extends into one first space, one pin hole (1) is formed between the second claw (52) and one of the two adjacent first claws, and the other pin hole (1) is formed between the second claw and the other of the two adjacent first claws.

3. A radial pin coupling according to claim 2, characterized in that one pin (2) abuts only one pressure plate (3) or one pin (2) abuts two pressure plates (3).

4. A radial pin coupling according to claim 3, characterized in that one pressing plate (3) is spaced from the pressing plate (3) adjacent thereto in the circumferential direction of the set of dog discs.

5. A radial stud coupling according to claim 4, wherein the first and/or second jaws (42, 52) are provided with a receiving groove (6);

the contact part of the pressing sheet (3) and the first claw (42) is positioned in the accommodating groove (6) of the first claw (42);

the contact part of the pressing sheet (3) and the second claw (52) is positioned in the accommodating groove (6) of the second claw (52).

6. The radial pin coupling according to claim 5, wherein the pressing plate (3) comprises a pressing plate body (31) and an extension portion (32), the pressing plate body (31) is a circular arc segment, and the extension portion (32) is located on one axial side of the pressing plate body (31) and connected with the pressing plate body (31).

7. The radial pin coupling of claim 6, wherein the number of extensions is at least two, each extension on the same wafer body being connected to the first jaw (42) or each extension on the same wafer body being connected to the second jaw (52).

8. The radial stud coupling according to claim 7, characterized in that the first pawl (42) is provided with a coupling hole (7) for screw coupling with the extension (32), the coupling hole (7) being provided at an end of the first pawl (42) close to the first pawl plate body (41);

the second claw (52) is provided with a connecting hole (7) for connecting with an extension part (32) through a screw, and the connecting hole (7) is arranged at the position of the end part of the second claw (52) close to the second claw disc body (51).

9. The radial stud coupling of claim 8, wherein the extension (32) is connected to a connection hole (7) on the first jaw (42) by means of the screw or the extension (32) is connected to a connection hole (7) on the second jaw (52) by means of the screw;

the radial pin coupling further comprises a washer disposed between the extension (32) and the first jaw (42) or the washer disposed between the extension (32) and the second jaw (52).

10. The radial stud coupling of claim 9, further comprising two hubs (8), one hub for connection with a first dog plate and the other hub for connection with a second dog plate; a hub (8) connected with the first claw disc at least partially penetrates through the inner hole of the first claw disc body (41) and/or a hub (8) connected with the second claw disc at least partially penetrates through the inner hole of the second claw disc body (51), and the part of the hub (8) penetrating through the inner hole of the first claw disc body (41) and/or the part of the hub (8) penetrating through the inner hole of the second claw disc body (51) is called a support part (9); one end of the pin (2) far away from the pressing sheet (3) abuts against the supporting part (9).