CN208539294U - A kind of conducting slip ring and conductive swivel joint - Google Patents
A kind of conducting slip ring and conductive swivel joint Download PDFInfo
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- CN208539294U CN208539294U CN201821266161.5U CN201821266161U CN208539294U CN 208539294 U CN208539294 U CN 208539294U CN 201821266161 U CN201821266161 U CN 201821266161U CN 208539294 U CN208539294 U CN 208539294U
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- terminals
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- conductive
- rotary body
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Abstract
The utility model relates to electrical component apparatus fields, disclose a kind of conducting slip ring and conductive swivel joint, conducting slip ring includes conductive shaft and shell, the conductive shaft includes the axial fixed body and rotary body being mutually clamped, two conductive channels are divided into after the fixed body and rotary body clamping, are separately filled with liquid metal in two conductive channels；The end of the fixed body is connected with two first terminals, and two first terminals it is corresponding extend into two conductive channels with liquid metal contacts, the end of the rotary body is connected with two second terminals, and two second terminals are corresponding extends into liquid metal contacts in two conductive channels, the conductive shaft is installed in shell by the fixed body.The problem of it is big using mercury formula collecting ring harm to the human body that the utility model is able to solve existing conducting slip ring, and the slip rings such as brush are prone to wear under long-term rotary work situation.
Description
Technical field
The utility model relates to electrical component apparatus fields, more particularly to a kind of conducting slip ring and conductive swivel joint.
Background technique
In electrical communications, the electrical components such as the collector ring of brush, multiple spot ring-like contact are mostly used to realize two opposite rotations
The transmitting of the signals such as electric current, power, temperature between rotation member.
Brush or collecting ring, it is easy for installation but be easy to produce electric arc, influence current signal transmission quality.And it is such
Slip ring is prone to wear under the rotating condition for a long time, and service life is short, and maintenance cost is high, influences work limitation.And mercury slip ring
Contact resistance is small and stablizes, and adapts to general measure requirement, but the greatest problem of mercury slip ring is that the volatile formation mercury of mercury steams
Gas has severe toxicity, larger harm can be generated to human body, simultaneously as the thermal expansion coefficient of mercury is larger, workable for mercury slip ring
Environment temperature is lower.
Utility model content
(1) technical problems to be solved
The utility model aims to solve at least one of technical problems existing in the prior art or related technologies.
Purpose of the utility model is to solve in traditional technology between two relative rotation components electric current, power,
Brush or collecting ring are used in the transmitting of the signals such as temperature, are easy to produce electric arc, are influenced current signal transmission quality；And
It is prone to wear under the rotating condition for a long time, service life is short, and maintenance cost is high；And the volatile formation mercury of mercury steams in mercury slip ring
Gas is harmful to the human body, and adapts to the problems such as environment temperature is low.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of conducting slip ring comprising conductive shaft and shell, institute
Stating conductive shaft includes the axial fixed body and rotary body being mutually clamped, and is divided into two after the fixed body and rotary body clamping and leads
Electric channel is separately filled with liquid metal in two conductive channels；The end of the fixed body is connected with two first and connects
Line end, and two first terminals it is corresponding extend into two conductive channels with liquid metal contacts, the rotation
The end of body is connected with two second terminals, and two second terminals correspondences extend into two conductive channels
With liquid metal contacts, the conductive shaft is installed in shell by the fixed body.
Wherein, the end of the fixed body/rotary body is circumferentially with the outer latch of a circle and is coaxially disposed with the outer latch
One enclose in latch, the end of the rotary body/fixed body be equipped with a circle exterior bayonet slot and with exterior bayonet slot coaxial arrangement one
Inner card cage is enclosed, the outer latch is plugged in the exterior bayonet slot, and the interior latch is plugged in the inner card cage, to form two
A conductive channel.
Wherein, the end of the fixed body is there are the mounting hole of first terminals, the end of the rotary body there are
The mounting hole of second terminals；The outer end of the fixed body and rotary body is equipped with hollow shaft, first terminals and
Second terminals both pass through the corresponding hollow shaft and are mounted in corresponding mounting hole.
Wherein, the rotary body is connect by bearing with the shell；The inner ring of the bearing and the rotary body interference
The inner peripheral surface of cooperation, the outer ring of the bearing and the shell is interference fitted.
It wherein, further include the end cap being connect with the shell, the end cap is connected through a screw thread with the shell, the rotation
The hollow shaft of swivel extends the end cap.
Wherein, the hollow shaft of the fixed body extends the shell.
Wherein, the first rubber sheet gasket, the end face of the rotary body are equipped between the end face of the fixed body and the shell
The second rubber sheet gasket is equipped between the bearing.
Wherein, rubber washer and felt collar are successively arranged between the bearing and the end cap.
Wherein, the shell, end cap, the first terminals and the second terminals are made of red copper；The fixed body and rotation
Swivel is made of polytetrafluoroethylene (PTFE).
The utility model also provides a kind of conductive swivel joint comprising conducting slip ring as described in the above technical scheme,
First terminals connect and fix with the first workpiece, and second terminals connect with second workpiece and carried out by bearing
Rotary motion.
(3) beneficial effect
Compared with prior art, the utility model has the advantage that
A kind of conducting slip ring provided by the utility model, wherein conductive shaft includes the axial fixed body being mutually clamped and rotation
Two conductive channels are divided into after swivel, the fixed body and rotary body clamping, are separately filled in two conductive channels
Liquid metal is as conductive fluid medium；The end of the fixed body is connected with two first terminals, and two described first
Terminals are corresponding to be extended into liquid metal contacts in two conductive channels, and the end of the rotary body is connected with two pieces the
Two terminals, and two second terminals are corresponded to and are extended into two conductive channels with liquid metal contacts, are formed
Two electrode transmission, to be suitable for the occasion of bipolar electrode；Using liquid metal as conducting medium, instead of traditional mercury slip ring
In mercury, it is nontoxic not volatile, it is highly-safe；Electric conductivity is strong, and thermal expansion coefficient is small；Its structure is simple, easy to assembly, and performance is steady
It is fixed, it can be widely used for the various occasions, such as joint of robot connector, electroplating industry etc. for needing high speed rotation to be electrically connected.
A kind of conductive swivel joint provided by the utility model, the first terminals connect and fix with the first workpiece, the
Two terminals are connect with second workpiece can be rotated by bearing, for realizing two the first workpiece of relative rotation component
The transmitting of the signals such as electric current, power, temperature between second workpiece.
Detailed description of the invention
Fig. 1 is a kind of diagrammatic cross-section of conducting slip ring of the utility model.
Fig. 2 is the diagrammatic cross-section of the utility model conductive shaft.
Fig. 3 is the real work schematic diagram of the utility model conductive swivel joint.
In figure: 1- shell；2- conductive shaft；The first rubber sheet gasket of 3-；The second rubber sheet gasket of 4-；5- bearing；6- rubber washer；
7- felt collar；8- end cap；21- fixed body；22- rotary body；23- liquid metal；The first terminals of 24-；The second terminals of 25-；9:
Rotary shaft；10: electric wire.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it is above-mentioned that concrete condition understanding can be regarded
The concrete meaning of term in the present invention.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multiple groups " are meant that two
It is a or more than two.
It as shown in Figs. 1-2, is a kind of conducting slip ring provided by the embodiment of the utility model comprising conductive shaft 2 and shell
1, the conductive shaft 2 includes the axial fixed body 21 and rotary body 22 being mutually clamped, and the fixed body 21 and rotary body 22 are clamped
After be divided into two conductive channels, be separately filled with liquid metal 23 in two conductive channels；The end of the fixed body 21
Portion is connected with two first terminals 24, and two first terminals 24 it is corresponding extend into two conductive channels with
Liquid metal 23 contacts, and the end of the rotary body 22 is connected with two second terminals 25, and two second terminals
25 corresponding extend into two conductive channels contact with liquid metal 23, form two electrode transmission, to be suitable for double
The occasion of electrode, conductive fluid medium of the liquid metal 23 as conducting the first terminals 24 and the second terminals 25, instead of passing
Mercury in system mercury slip ring, it is nontoxic not volatile, it is highly-safe；Electric conductivity is strong, and thermal expansion coefficient is small；Its structure is simple, assembles
Convenient, performance is stablized, and can be widely used for the various occasions for needing high speed rotation electric connector, such as joint of robot connector,
Electroplating industry etc.；It solves in the transmitting of signals such as electric current, power, the temperature in traditional technology between two relative rotation components
The problem of using brush or collecting ring, being easy to produce electric arc, influencing current signal transmission quality.
It is installed in order to facilitate conductive shaft 2 and fixed, the conductive shaft 2 is installed in shell 1 by the fixed body 21, is led
Electric axis 2 and shell 1 are coaxially disposed, and the two is using interference fit, or is aided with adhesive.
Liquid metal 23 is in liquid condition, predominantly 23 alloy of gallium base liquid metal at room temperature, including mass fraction is
The gallium of 72%-78% and the indium of 22%-28% or mass fraction are the indium and 8%- of the gallium of 60%-70%, 20%-30%
16% tin or mass fraction is the gallium of 60%-69%, the indium of 20%-29%, the tin of 8%-15% and the zinc of 0.1%-3%.
It is, of course, also possible to be matched using other liquid metals 23.Liquid metal 23 is used as a kind of new material, is in a liquid state at room temperature, has
There are good mobility and greasy property, compared with mercury, boiling point is high and not volatile, density is low, thermal expansion coefficient is small, it
Apply to conducting slip ring, advantage is as follows: (1) for liquid metal 23 at normal temperature in liquid condition, boiling point is high and not volatile, uses
In instead of mercury, asepsis environment-protecting；(2) liquid metal 23 is the best material of electric conductivity in liquid, thermal conductivity, and is had good
Mobility and greasy property, contact resistance is small and stablizes, and device is not easy to wear, enhances service life；(3) liquid metal 23 is opposite
In mercury, thermal expansion coefficient is smaller, and use environment temperature is higher, can work at 100 DEG C or so.
Specifically, in order to realize that fixed body 21 and rotary body 22 are clamped, the end of 21/ rotary body 22 of fixed body is circumferential
Interior latch is enclosed equipped with the outer latch of a circle and with the one of the outer latch coaxial arrangement, interior latch is set in outer latch, the rotation
The end of 22/ fixed body 21 of body is equipped with a circle exterior bayonet slot and the circle inner card cage with exterior bayonet slot coaxial arrangement, inner card cage position
In in exterior bayonet slot, the outer latch is plugged in the exterior bayonet slot, and the interior latch is plugged in the inner card cage, to be formed
Two conductive channels, two conductive channels are mutually indepedent.
It is installed for the ease of the first terminals 24 and the second terminals 25, there are described first for the end of the fixed body 21
The mounting hole of terminals 24, there are the mounting holes of second terminals 25 for the end of the rotary body 22；The fixed body 21
It is equipped with hollow shaft with the outer end of rotary body 22, first terminals 24 and the second terminals 25 both pass through the corresponding sky
Mandrel is mounted in corresponding mounting hole, thus, so that being not take up outside after the first terminals 24 and the installation of the second terminals 25
Space.
Wherein, the rotary body 22 is connect by bearing 5 with the shell 1；Specifically, the inner ring of the bearing 5 and institute
State the interference fit of rotary body 22, the inner peripheral surface interference fit of the outer ring of the bearing 5 and the shell 1.
Wherein, the shell 1 is uncovered structure, in order to which certain closing and fixation are played in the open end to the shell 1
Effect, convenient for sealing, which further includes the end cap 8 connecting with the shell 1, and the end cap 8 passes through with the shell 1
It is threadedly coupled, the hollow shaft of the rotary body 22 extends the end cap 8.
Similarly, the hollow shaft of the fixed body 21 extends the shell 1.
Wherein, it is equipped with the first rubber sheet gasket 3 between the end face and the shell 1 of the fixed body 21 and is used as sealing element, institute
It states and is equipped with the second rubber sheet gasket 4 between the end face of rotary body 22 and the bearing 5 as sealing element, thus, in conductive channel
Liquid metal 23 play the role of better seal, prevent liquid metal 23 leak.It is conductive using dual-seal liquid metal 23
Working medium can be applied to the extreme environments such as dust, underwater, greatly improves the stability of conducting slip ring, reliability and uses the longevity
Life.
Wherein, it is successively arranged rubber washer 6 and felt collar 7 between the bearing 5 and the end cap 8, is used for conducting slip ring end
The sealing in portion.
In the embodiments of the present invention, the shell 1, end cap 8, the first terminals 24 and the second terminals 25 are using purple
Copper at；The fixed body 21 and rotary body 22 are made of polytetrafluoroethylene (PTFE).
As shown in figure 3, the utility model also provides a kind of conductive swivel joint comprising as described in the above technical scheme
Conducting slip ring, first terminals 24 connect and fix with the first workpiece, and rotary shaft 9 and 1 interference of shell of the first workpiece are matched
It closes；Second terminals 25 connect with second workpiece and pass through bearing 5 and are rotated, when the first workpiece need to rotate work
To make, the second terminals 25 are connect with second workpiece to be passed through electric wire 10 and holds, when second workpiece needs to rotate, then the first workpiece and the
One terminals 24 are held by electric wire；Cup body structure is cooperatively formed by fixed body 21 and 22 card slot of rotary body, in cup body structure
23 fluid media (medium) of liquid metal complete two electrode conductions, it can realize two the first workpiece of relative rotation component and the second work
The transmitting of the signals such as electric current, power, temperature between part.
As can be seen from the above embodiments, the utility model is able to solve in traditional technology between two relative rotation components
The transmitting of signals such as electric current, power, temperature in use brush or collecting ring, be easy to produce electric arc, influence current signal
Transmission quality；And it is prone to wear under the rotating condition for a long time, service life is short, and maintenance cost is high；And mercury is easy in mercury slip ring
Volatilization forms mercury vapour, is harmful to the human body, and adapts to the problems such as environment temperature is low.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of conducting slip ring, which is characterized in that including conductive shaft and shell, the conductive shaft include it is axial be mutually clamped consolidate
Determine body and rotary body, two conductive channels are divided into after the fixed body and rotary body clamping, are divided in two conductive channels
It Tian Chongyou not liquid metal；The end of the fixed body is connected with two first terminals, and two first terminals pair
It should extend into liquid metal contacts in two conductive channels, the end of the rotary body is connected with two second wiring
End, and two second terminals it is corresponding extend into two conductive channels with liquid metal contacts, the conductive shaft
It is installed in shell by the fixed body.
2. conducting slip ring according to claim 1, which is characterized in that the end of the fixed body/rotary body is circumferentially with
Latch in the outer latch of one circle and the circle being coaxially disposed with the outer latch, the end of the rotary body/fixed body is equipped with a circle
Exterior bayonet slot and the circle inner card cage being coaxially disposed with the exterior bayonet slot, the outer latch is plugged in the exterior bayonet slot, described interior
Latch is plugged in the inner card cage, to form two conductive channels.
3. conducting slip ring according to claim 1, which is characterized in that there are first wiring for the end of the fixed body
The mounting hole at end, there are the mounting holes of second terminals for the end of the rotary body；The fixed body and rotary body it is outer
End is equipped with hollow shaft, and first terminals and the second terminals both pass through the corresponding hollow shaft and are mounted on corresponding peace
It fills in hole.
4. conducting slip ring according to claim 3, which is characterized in that the rotary body is connected by bearing and the shell
It connects；The inner ring of the bearing and the rotary body are interference fitted, and the outer ring of the bearing and the inner peripheral surface interference of the shell are matched
It closes.
5. conducting slip ring according to claim 4, which is characterized in that it further include the end cap being connect with the shell, it is described
End cap is connected through a screw thread with the shell, and the hollow shaft of the rotary body extends the end cap.
6. conducting slip ring according to claim 3, which is characterized in that the hollow shaft of the fixed body extends the shell
Body.
7. conducting slip ring according to claim 4, which is characterized in that set between the end face of the fixed body and the shell
There is the first rubber sheet gasket, the second rubber sheet gasket is equipped between the end face of the rotary body and the bearing.
8. conducting slip ring according to claim 5, which is characterized in that be successively arranged rubber between the bearing and the end cap
Rubber gasket and felt collar.
9. conducting slip ring according to claim 5, which is characterized in that the shell, end cap, the first terminals and second connect
Line end is made of red copper；The fixed body and rotary body are made of polytetrafluoroethylene (PTFE).
10. a kind of conductive swivel joint, which is characterized in that described including such as described in any item conducting slip rings of claim 1-9
First terminals connect and fix with the first workpiece, and second terminals, which connect with second workpiece and pass through bearing, to be rotated
Movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821266161.5U CN208539294U (en) | 2018-08-07 | 2018-08-07 | A kind of conducting slip ring and conductive swivel joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821266161.5U CN208539294U (en) | 2018-08-07 | 2018-08-07 | A kind of conducting slip ring and conductive swivel joint |
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| Publication Number | Publication Date |
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| CN208539294U true CN208539294U (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821266161.5U Active CN208539294U (en) | 2018-08-07 | 2018-08-07 | A kind of conducting slip ring and conductive swivel joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021062695A1 (en) * | 2019-09-30 | 2021-04-08 | 西门子（中国）有限公司 | Robot joint connecting structure and robot |
-
2018
- 2018-08-07 CN CN201821266161.5U patent/CN208539294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021062695A1 (en) * | 2019-09-30 | 2021-04-08 | 西门子（中国）有限公司 | Robot joint connecting structure and robot |
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