CN110159858B - Rotary gas circuit mechanism - Google Patents
Rotary gas circuit mechanism Download PDFInfo
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- CN110159858B CN110159858B CN201810145682.3A CN201810145682A CN110159858B CN 110159858 B CN110159858 B CN 110159858B CN 201810145682 A CN201810145682 A CN 201810145682A CN 110159858 B CN110159858 B CN 110159858B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
- F16L39/06—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies of the multiline swivel type, e.g. comprising a plurality of axially mounted modules
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Abstract
The invention belongs to the technical field of automation, and particularly discloses a rotary gas circuit mechanism which comprises a gas inlet, a gas outlet, a fixed seat and a rotary piece rotating relative to the fixed seat; the gas path fixing part is fixedly connected with the fixing seat and is provided with at least one gas inlet; the gas path rotating part is fixedly connected with the rotating part and is provided with at least one gas outlet; the air inlet and the air outlet are communicated through an air passage. According to the rotary gas circuit mechanism disclosed by the invention, the gas inlet is arranged on the gas circuit fixing part, and the gas outlet is arranged on the gas circuit rotating part, so that the gas pipe is prevented from rotating along with the gas circuit rotating part, the phenomena of gas pipe replacement and winding can be effectively prevented, and the reliability and flexibility of the rotary gas circuit mechanism are improved.
Description
Technical Field
The invention relates to the technical field of automation, in particular to a rotary gas circuit mechanism.
Background
In the fields of automatic production, industrial robots and the like, rotary motion is a common motion mode. And under many operating modes, the rotary motion in-process needs the gas circuit to move along with the rotating member, like current pneumatic double-layered material manipulator, installs a plurality of trachea and is used for admitting air, when pressing from both sides the rotatory material of snatching of material manipulator, the trachea also need produce thereupon and rotate.
According to the position relation of gas circuit and rotation axis, the operating mode that the gas circuit moved along with the rotating member can be divided into two kinds: firstly, the rotary air path is positioned at the axis position of a rotating shaft of the rotating part, the air pipe can be arranged at the axis position of the rotating shaft by adopting a rotary air pipe joint under the working condition, when the rotating part rotates, the rotating part of the rotating structure moves along with the rotating shaft, and the air pipe is arranged at the fixed part of the rotating joint, so that the air pipe cannot rotate, and the air path rotates along with the rotating part through the rotating air pipe; and secondly, the rotary air path is located at a non-axial position of the rotary part, the axial position of the rotary shaft is occupied by other parts at the moment, and the rotary air path cannot be arranged at the axial position of the rotary part, such as a rotary air path of a manipulator, an air path of a turntable and the like.
However, the mode of arranging the air pipe at one side of the rotating shaft is adopted, a larger rotating pipe passing space needs to be reserved for the rotating air pipe, otherwise, other pipes are easy to generate, the rotating air pipe is wound or broken, and the reliability and the service life of the device are influenced; and the rotating stroke is also limited, for example, the stroke range of the rotation of the mechanical arm is +/-270 degrees due to the limitation of the stroke of the rotating air pipe, so that the flexibility of the mechanical arm is influenced.
Disclosure of Invention
The invention provides a rotary air path mechanism, which is used for preventing air pipes from being blocked or wound in the air path rotation process and improving the reliability and flexibility of a device with the rotary air path mechanism.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a rotatory gas circuit mechanism, includes air inlet and gas outlet, still includes:
the rotary part rotates relative to the fixed seat;
the gas path fixing part is fixedly connected with the fixing seat and is provided with at least one gas inlet;
the gas path rotating part is fixedly connected with the rotating part and is provided with at least one gas outlet;
the air inlet and the air outlet are communicated through an air passage.
Further, the rotating part is sleeved outside the fixing seat, the gas circuit rotating part is sleeved outside the gas circuit fixing part, and the gas circuit fixing part is connected with the gas circuit rotating part in a sealing mode.
The driving transmission assembly comprises a motor and a driving gear connected to an output shaft of the motor;
further, the gas circuit rotating part is fixedly connected to the end face of the driven gear.
Furthermore, the gas circuit fixing part and the fixing seat are both of a cylindrical structure with a containing cavity, the inner side wall of the gas circuit fixing part is provided with the gas inlet, and a gas pipe interface and a gas pipe which are connected with the gas inlet are located in the containing cavity.
Further, the air passage comprises an air inlet passage, an annular air passage and an air outlet passage which are communicated in sequence, and the air inlet passage is communicated with the air inlet; the inlet channel is followed the gas circuit fixed part or the circumference direction setting of gas circuit fixed part, annular air flue is followed the radial direction setting of gas circuit rotating part, the outlet channel is followed the axial direction setting of gas circuit rotating part.
Furthermore, the gas circuit fixed part is provided with the multilayer air inlet layer along its axis direction interval, every layer the air inlet layer is provided with at least one the air inlet, adjacent two-layer air inlet layer the air inlet dislocation set.
Further, the gas circuit rotating part is kept away from fixedly connected with installed part on the terminal surface of rotating part, seted up on the installed part at least one communicate in the venthole of gas outlet.
Furthermore, at least one air guide hole is formed in the mounting piece along the radial direction of the rotating shaft of the mounting piece, a plurality of air outlet holes are formed in the position, corresponding to the air guide hole, of the upper end face of the mounting piece at intervals, and the air guide holes are communicated with the air outlet holes and the corresponding air outlet holes respectively.
Furthermore, the gas circuit rotating part with the gas circuit fixed part adopts the spring energy storage sealing washer rotary seal, every annular air flue all is provided with at least one along its axis direction's both sides spring energy storage sealing washer.
Furthermore, the gas circuit rotating part and the gas circuit fixing part are sealed by magnetic fluid.
The invention has the beneficial effects that:
according to the rotary gas circuit mechanism provided by the invention, the gas inlet is arranged on the gas circuit fixing part, and the gas outlet is arranged on the gas circuit rotating part, so that the gas pipe is prevented from rotating along with the gas circuit rotating part, the phenomena of gas pipe replacement and winding can be effectively prevented, and the reliability and flexibility of the rotary gas circuit mechanism are improved.
Drawings
Fig. 1 is a top view of a rotary air path mechanism according to a first embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 3 at I;
FIG. 5 is a top view of the rotary air path mechanism with the mounting member removed according to the second embodiment of the present invention;
FIG. 6 is a cross-sectional view of the complete rotary air path mechanism taken along the direction C-C in FIG. 5;
FIG. 7 is a cross-sectional view of the complete rotary air path mechanism taken along line D-D of FIG. 5;
FIG. 8 is an enlarged view of a portion of FIG. 7 at J;
fig. 9 is a schematic structural diagram of a rotary seal structure provided in the third embodiment of the present invention.
The figures are labeled as follows:
1-a fixed seat; 2-a rotating member; 3-a gas path rotating part; 31-air outlet; 311-first outlet port; 312-a second air outlet; 321-a first air outlet channel; 322-a second outlet channel; 33-an annular air passage; 331-a first annular air passage; 332-a second annular air passage; 4-gas path fixing part; 41-air inlet; 411 — first air inlet; 412-a second inlet; 42-an intake passage; 421-a first air intake passage; 422-second intake passage; 5-a mounting member; 51-air outlet holes; 511-a first outlet hole; 512-a second air outlet; 52-gas-guide hole; 6-a bearing; 7-a drive transmission assembly; 71-a motor; 72-a drive gear; 8-a gas pipe joint; 9-O type sealing ring; 10-spring energy storage sealing ring; 11-an adapter plate; 12-a magnetic fluid sealing structure; 121-upper pole shoe; 122-lower pole piece; 123-non-magnetic conductive seat; 124-permanent magnet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a top view of a rotary air path mechanism according to an embodiment of the present invention, and fig. 2 is a sectional view taken along a-a direction in fig. 1. Referring to fig. 1 and 2, an embodiment of the present invention provides a rotary air path mechanism, which includes a driving transmission assembly 7, a fixed seat 1, a rotating member 2, an air path rotating portion 3, and an air path fixing portion 4. Wherein gas circuit rotating part 3 and rotating member 2 fixed connection, gas circuit fixed part 4 and 1 fixed connection of fixing base, drive transmission assembly 7 drive rotating member 2 relative fixing base 1 and rotate to drive gas circuit rotating part 3 and rotate. The gas path fixing portion 4 is provided with a plurality of gas inlets 41, and the gas path rotating portion 3 is provided with a gas outlet 31 communicated with the gas inlets 41. The rotatory gas circuit mechanism that this embodiment provided, because the air inlet 41 of connecting the air pipe joint 8 sets up on gas circuit fixed part 4, therefore, when rotating member 2 drives gas circuit rotating part 3 and rotates, only make the air flue that sets up at gas circuit rotating part 3 rotate along with rotating member 2, and connect the trachea that 8 departments of air pipe joint can not produce the follow-up, thereby the trachea can not take place the condition that influences rotatory gas circuit performance such as other pipe and winding, and can not influence 2 pivoted strokes of rotating member, thereby improve the reliability and the flexibility of rotatory gas circuit mechanism and the equipment that sets up this rotatory gas circuit mechanism.
Specifically, as shown in fig. 2, the fixing base 1, the rotating member 2, the air path rotating portion 3, and the air path fixing portion 4 are all cylindrical structures with cavities, the rotating member 2 is sleeved on the fixing base 1, and a bearing 6 is disposed between the fixing base 1 and the rotating member 2. Wherein, the outer lane of bearing 6 and the inner wall interference fit of rotating member 2, the inner circle of bearing 6 and the outer wall interference fit of fixing base 1. The terminal surface that fixing base 1 was kept away from to gas circuit rotating part 3 is connected with installed part 5, and installed part 5 is the effect piece that can adopt the pneumatic drive action, if installed part 5 is the sucking disc, then accessible evacuation makes the sucking disc adsorb the material, if installed part 5 is pneumatic tongs, then the action etc. are released with snatching of accessible pneumatic drive tongs, and the type of installed part 5 should be selected according to the concrete purpose that will realize, and this embodiment does not restrict the concrete structure and the type of installed part 5.
Through setting up gas circuit rotating part 3 in the periphery of gas circuit fixed part 4, can increase the terminal surface area of gas circuit rotating part 3 to the increase sets up in the area of the installed part 5 of 3 terminal surfaces of gas circuit rotating part, can improve the adsorption efficiency to the material of great area, and the size of increase adsorption material, can increase gas circuit rotary mechanism's effect object quantity on the basis of guaranteeing overall structure compactness.
The driving transmission assembly 7 includes a motor 71 and a driving gear 72 connected to an output shaft of the motor 71, and the rotary member 2 is a driven gear engaged with the driving gear 72. Gas circuit rotating part 3 fixed connection is on driven gear's terminal surface, and gas circuit fixed part 4 is connected with the terminal surface of fixing base 1. The connection between the gas circuit rotating portion 3 and the rotating member 2 and the connection between the gas circuit fixing portion 4 and the fixing base 1 may be a threaded connection as shown in fig. 2, or may be other connection methods, and the specific connection method is not limited in this embodiment.
When the motor 71 rotates to drive the driving gear 72 to rotate, the driving gear 72 drives the driven gear (i.e. the rotary member 2) engaged with the driving gear to rotate, so that the gas circuit rotary part 3 fixedly linked with the driven gear rotates, and the gas channel arranged on the gas circuit rotary part 3 rotates along with the rotary member 2.
In this embodiment, the driving transmission assembly 7 is a motor 71 and a gear, so that the rotating member 2 is a driven gear, on one hand, torque transmission is realized through the engagement of the driving gear 72 and the driven gear, on the other hand, the end surface of the driven gear can be used for connecting the mounting air circuit rotating part 3, and the inner ring of the driven gear provides a mounting interface of the bearing 6, so that the whole structure of the whole rotating air circuit mechanism is more compact. The drive transmission assembly 7 may also be of other construction which can bring the rotary member 2 into rotation about its axis. Meanwhile, the present embodiment does not limit the specific drive transmission assembly 7 as long as the structure capable of torque transmission is implemented.
In order to control and monitor the rotation of the rotating member 2, the motor 71 is connected with an encoder, and the encoder converts the rotation angular displacement into a pulse digital signal, so that the rotation angular velocity and the angular displacement of the motor 71 are accurately calculated, and the rotation of the rotating member 2 is regulated. Meanwhile, the encoder can position and track the rotating position of the air path rotating mechanism, and the reliability of the air path rotating mechanism is improved.
Fig. 3 is a sectional view taken along the direction B-B in fig. 1, and referring to fig. 2 and 3, the gas path fixing portion 4 is a cylindrical structure with a cavity, and preferably has an inner diameter equal to that of the fixing base 1 and an outer diameter matching with that of the gas path rotating portion 3. The inner wall of gas circuit fixed part 4 is provided with the multilayer air inlet layer along its axis direction, is provided with a plurality of air inlets 41 along its even interval of circumference on every layer of air inlet layer, and the air inlet 41 dislocation set on the adjacent two-layer air inlet layer, and for making things convenient for the installation of air pipe connector 8 and tracheal arranging, the projection of air inlet 41 on the multilayer air inlet layer on 4 terminal surfaces of gas circuit fixed part is located same circumference, and even interval distribution. In this embodiment, the inner wall of the air path fixing portion 4 is provided with a first air inlet layer and a second air inlet layer along the axial direction thereof, the first air inlet layer is provided with two first air inlets 411, the second air inlet layer is provided with two second air inlets 412, the connecting line of the two first air inlets 411 and the connecting line of the two second air inlets 412 are perpendicular to each other, and the included angle between the adjacent first air inlets 411 and the adjacent second air inlets 412 is 90 °.
Because set up air inlet 41 on the inner wall of gas circuit fixed part 4, connect in air pipe joint 8 and the trachea of air inlet 41 and can place in the cavity of fixing base 1 and gas circuit fixed part 4 to make the trachea can concentrate the setting in the cavity of rotatory gas circuit mechanism, be favorable to strengthening overall structure's compact structure type and clean and tidy nature. And through setting up the multilayer air inlet layer, set up a plurality of air inlets 41 on every layer of air inlet 41, can realize the quick gassing of filling of gas in the rotatory gas circuit mechanism, improved the flexibility of rotatory gas circuit mechanism action.
As shown in fig. 2 and 3, the air path fixing portion 4 is provided with an air inlet passage communicated with the air inlet 41, and the air inlet passage includes a first air inlet passage 421 communicated with the first air inlet 411 and a second air inlet passage 422 communicated with the second air inlet 412. The first air inlet channel 421 and the second air inlet channel 422 are both arranged along the radial direction of the circumferential surface where the first air inlet channel 421 and the second air inlet channel 422 are located, and the first air inlet channel 421 or the second air inlet channel 422 of the same layer of air inlet layer are located on the same circumferential surface.
The gas circuit rotating part 3 is provided with a plurality of gas outlets 31 and the air outlet channel of connecting gas outlets 31 on the terminal surface of connecting installed part 5, and gas outlets 31 and air outlet channel one-to-one set up. In this embodiment, the air outlet 31 includes a first air outlet 311 communicated with the first air inlet and a second air outlet 312 communicated with the second air inlet, and the air outlet channel includes a first air outlet channel 321 communicated with the first air outlet 311 and the first air inlet channel 421 and a second air outlet channel 322 communicated with the second air outlet 312 and the second air inlet channel 422.
In order to ensure that the air path rotating portion 3 always keeps a communicating state with the air inlet channel when rotating relative to the air path fixing portion 4, an annular air passage 33 is arranged between the air outlet channel and the air inlet channel, the annular air passage 33 comprises a first annular air passage 331 communicating with a first air inlet channel 421 and a first air outlet channel 321, and a second annular air passage 332 communicating with a second air inlet channel 422 and a second air outlet channel 322, and the plurality of first air inlets 411 and the plurality of first air outlets 311 are communicated with the same first annular air passage 331, and the plurality of second air inlets 412 and the plurality of second air outlets 312 are communicated with the same second annular air passage 332.
In this embodiment, the annular air passage 33 is disposed on the air passage rotating portion 3, and at this time, the annular air passage 33 is opened on the inner side wall of the air passage rotating portion 3, and the first air outlet passage 321 and the second air outlet passage 322 are both disposed along the axial direction of the air passage rotating portion 3. The annular air passage 33 can also be arranged on the air passage fixing part 4, at this time, the annular air passage 33 is arranged on the outer side wall of the air passage fixing part 4, the first air outlet channel 321 and the second air outlet channel 322 are both in an L shape, the horizontal section of the L-shaped air outlet channel is arranged along the radial direction of the air passage rotating part 3 and is communicated with one end of the annular air passage 33, and the other end of the annular air passage 33 is communicated with the air inlet channel; the vertical section of "L" type air outlet channel sets up along the axial of gas circuit rotating part 3, and communicates gas outlet 31.
The air inlet channel, the air outlet channel and the annular air passage 33 are simple and convenient to process, simple and effective, and can effectively realize corresponding communication of the air inlets 41 and the air outlets 31, and the annular air passage 33 is arranged on the air passage fixing part 4 to be more favorable for processing the annular air passage 33. In addition to the communication between the air inlet 41 and the air outlet 41 shown in fig. 2 and 3, other types of communication passages may be provided.
Because the annular air passage 33 is arranged on the air passage rotating part 3, the number and the arrangement mode of the air outlets 31 are not limited to the positions and the modes of the air inlets 41, the air outlets 31 can be communicated with the corresponding air inlets 41 only by arranging the air outlet channels communicated with the air outlets 31 and the annular air passage 33, and the number and the position of the air outlets 31 can be specifically set according to specific use requirements. In the present embodiment, as shown in fig. 1, the number of the air outlets 31 is twelve, wherein six of the first air outlets 311 and six of the second air outlets 312 are provided. The six first air outlets 311 are uniformly arranged on the same circumference at intervals, the six second air outlets 312 are uniformly arranged on the other circumference at intervals, the angles between two adjacent first air outlets 311 and between two adjacent second air outlets 312 are both 60, and the angle between two adjacent first air outlets 311 and the angle between two adjacent second air outlets 312 is 30 degrees. In order to conduct the air flow from the air outlet 31 to the end surface of the mounting member 5, an air outlet hole 51 communicating with the air outlet 31 is correspondingly arranged at the position of the mounting member 5 corresponding to the air outlet 31.
For guaranteeing the sealing of rotatory gas circuit mechanism, gas circuit rotating part 3 and gas circuit fixed part 4 adopt to rotate the sealing member and seal, adopt quiet sealing member to seal between gas circuit rotating part 3 and the installed part 5 to gas in avoiding the air flue spills through the clearance between gas circuit rotating part 3 and gas circuit fixed part 4 and gas circuit rotating part 3 and the installed part 5. Fig. 4 is a partial enlarged view of a portion I in fig. 3, and as shown in fig. 4, two O-ring seals 9 disposed on both sides of the air outlet 31 are used for sealing between the air path rotating portion 3 and the mounting portion 5, and a plurality of spring energy storage seal rings 10 are used for dynamic sealing between the air path rotating portion 3 and the air path fixing portion 4. The spring energy storage sealing ring 10 is composed of a polymeric material shell and a built-in metal energy storage spring, when the spring energy storage sealing ring is arranged in a sealing groove formed between the gas circuit rotating part 2 and the gas circuit fixing part, the built-in metal energy storage spring bears certain pressure due to interference fit with the sealing groove, so that a lip edge of the polymeric material shell is tightly attached to the sealing groove, and sealing is formed. And the spring can provide the shell with continuous elastic force, and can make up for material abrasion and offset or eccentricity between matched parts, thereby prolonging the service life of the rotary air path. Meanwhile, the system pressure also has an auxiliary effect on the sealing effect. The material belt of the shell of the special sealing structural component has self-lubricating property, the sealing property is not influenced by insufficient lubrication during starting, and the abrasion and the friction resistance are effectively reduced; the sealing material is made of polytetrafluoroethylene or other high-performance materials, is clean and environment-friendly, and does not cause pollution. As shown in fig. 4, three spring energy storage sealing rings 10 are arranged along the axial direction of the gas circuit rotating portion 3, and one spring energy storage sealing ring 10 is arranged on each of two sides of each annular gas passage 33 in the axial direction.
According to the rotary gas circuit mechanism provided by the embodiment of the invention, the gas inlet 41 is arranged on the gas circuit fixing part 4, and the gas outlet 31 is arranged on the gas circuit rotating part 3, so that the gas pipe is prevented from rotating along with the gas circuit rotating part 3, the phenomenon that the gas pipe is separated from the pipe and wound can be effectively prevented, and the reliability and flexibility of the rotary gas circuit mechanism are improved; the gas path rotating part 3 is arranged on the outer side of the gas path fixing part 4, so that the adsorption area of the mounting part 5 is increased, the adsorption capacity of the mounting part 5 is improved, and the acting area of the mounting part 5 is enlarged; the air inlet 41, the air inlet interface connected with the air inlet 41 and the air pipe are arranged on the inner side of the air path fixing part 4, so that the air pipe can be arranged in a concentrated manner, the occupied space of the air pipe is reduced, and the whole structure is more compact and tidy; the rotary part 2 is set as a driven gear, and the gas circuit rotary part 3 is arranged on the end face of the driven gear, so that the volume of the whole rotary gas circuit mechanism is reduced, and the compactness of the whole structure is improved; by arranging the multiple air inlet layers, the air can be quickly charged and discharged, and the flexibility of the rotary air path mechanism is improved; through set up spring energy storage sealing washer 10 between gas circuit rotating part 3 and gas circuit fixed part 4, can provide effective seal for rotatory gas circuit mechanism, improve the performance of rotatory gas circuit mechanism, prolong the life of rotatory gas circuit mechanism.
Example two
Fig. 5 is a top view of the rotary air-path mechanism provided by the second embodiment of the invention, with the mounting member removed, fig. 6 is a sectional view of the complete rotary air-path mechanism taken along the direction C-C in fig. 5, and fig. 7 is a sectional view of the complete rotary air-path mechanism taken along the direction D-D in fig. 5. As shown in fig. 5-7, this second embodiment provides a rotary air channel mechanism, including drive transmission assembly 7, fixing base 1, rotating part 2, air channel rotating part 3 and air channel fixing part 4, wherein, fixing base 1 covers the outside at rotating part 2, air channel fixing part 4 and fixing base 1 fixed connection, air channel rotating part 3 passes through adaptor plate 11 and rotating part 2 fixed connection, the one end that rotating part 2 was kept away from to air channel rotating part 3 is connected with installed part 5, air channel drive transmission assembly 7 drives rotating part 2 and rotates relative to fixing base 1, thereby drive air channel rotating part 3 and rotate, be provided with a plurality of air inlets 41 on the air channel fixing part 4, be provided with the gas outlet 31 of intercommunication air inlet 41 on the air channel rotating part 3, the up end that the air channel rotating part 3 was kept away from to installed part 5 is provided with.
The connection between the rotary member 2 and the gas circuit rotary part 3 and the connection between the fixed base 1 and the gas circuit fixed part 4 may be a threaded connection as shown in fig. 6 and 7, or may be another connection method.
Fig. 8 is a partial enlarged view of a portion J in fig. 7, and as shown in fig. 6 to 8, in the second embodiment, the gas circuit fixing portion 4 is sleeved on the outer side of the gas circuit rotating portion 3, the outer side wall of the gas circuit fixing portion 4 is provided with a first gas inlet layer and a second gas inlet layer at intervals along the axial direction thereof, the first gas inlet layer is provided with two first gas inlets 411 at intervals along the circumferential direction thereof, the second gas inlet layer is provided with two second gas inlets 412 at intervals along the circumferential direction thereof, each first gas inlet 411 is correspondingly provided with a first gas inlet channel 421, and each second gas inlet 412 is correspondingly provided with a second gas inlet channel 422.
The end face of gas circuit rotating part 3, far away from rotating member 2, is provided with eight gas outlets 31, eight gas outlets 31 all are located same circumference, and set up along its even interval in circumference, and eight gas outlets 31 include four first gas outlets 311 of being connected with first air inlet 411 and four second gas outlets 312 of being connected with second air inlet 412, every first gas outlet 311 all is provided with the first outlet channel 321 of intercommunication first air inlet 411, every second gas outlet 312 all is provided with the second outlet channel 322 of intercommunication second air inlet 412, first annular air flue 331 communicates between first outlet channel 321 and the first inlet channel 421, second annular air flue 332 communicates between second outlet channel 322 and the second inlet channel 422.
The arrangement of the air outlet channel, the air inlet channel 42 and the annular air passage 33 can refer to the arrangement of the first embodiment, and the second embodiment is not described again.
As shown in fig. 6 and 7, in order to enlarge the absorption area of the mounting member 5, an absorption portion is protruded from one end of the mounting member 5 away from the gas path rotating portion 3, the outer diameter of the absorption portion is larger than the outer diameter of the body of the mounting member 5, and a plurality of gas holes 52 communicated with the gas outlet 31 are radially opened, and the plurality of gas holes 52 are uniformly and radially distributed around the axis of the rotating member 2. The plurality of air guide holes 52 include a first air guide hole communicated with the first air outlet 311 and a second air guide hole communicated with the second air outlet 512, the first air guide hole is provided with a plurality of first air outlet 511 at intervals along the length direction thereof, the second air guide hole is provided with a plurality of second air outlet 512 at intervals along the length direction thereof, and the plurality of first air outlet 511 are both located at the inner side of the second air outlet 512.
Above-mentioned absorption portion, air guide hole 52, first venthole 511 and second venthole 512's the mode of setting up have enlarged the adsorption area of installed part 5, have improved the adsorption efficiency of installed part 5, and can make installed part 5 more even to the adsorption affinity of material, have improved the adsorption efficiency and the adsorption reliability of installed part 5.
For the sealed of guaranteeing rotatory gas circuit mechanism, gas circuit rotating part 3 and gas circuit fixed part 4 adopt the rotating seal spare to seal, adopt quiet sealing member to seal between gas circuit rotating part 3 and the installed part 5, and wherein quiet sealing adopts O type sealing washer 9 to seal, and rotating seal adopts metal energy storage spring to seal, and specific sealed mode can refer to embodiment one, and this embodiment two is no longer repeated.
In the rotary air path sealing mechanism provided by the second embodiment, the air inlet 41 is arranged on the air path fixing part 4, and the air outlet 31 is arranged on the air path rotating part 3, so that the air tube is prevented from rotating along with the air path rotating part 3, the occurrence of air tube separation and winding can be effectively prevented, and the reliability and flexibility of the rotary air path mechanism are improved; through set up the absorption portion on installed part 5 epirelief, set up air guide hole 52 on the absorption portion, can improve the adsorption efficiency and the absorption reliability of installed part 5 to improve the wholeness ability of rotatory gas circuit mechanism.
EXAMPLE III
The third embodiment provides a rotary air path mechanism, the overall mechanical structure of which may refer to the structure of the rotary air path mechanism in the first embodiment or the structure of the rotary air path mechanism in the second embodiment, and the difference between the third embodiment and the second embodiment is that there is a difference in the sealing structure between the air path rotating portion 3 and the air path fixing portion 4.
Specifically, as shown in fig. 9, a schematic diagram of a rotary seal structure provided in the third embodiment is shown, in the third embodiment, a magnetic fluid seal is used between the gas circuit rotating portion 3 and the gas circuit fixing portion 4 instead of the metal energy storage spring seal in the first and second embodiments.
As shown in fig. 9, the magnetic fluid sealing structure 12 includes a non-magnetic seat 123, a permanent magnet 124, an upper pole piece 121, and a lower pole piece 122, wherein the non-magnetic seat 123, the permanent magnet 124, the upper pole piece 121, and the lower pole piece 122 are all disposed in a sealing groove formed between the air circuit rotating portion 3 and the air circuit fixing portion 4, and one end of the annular air duct 33 to be sealed, which is close to the air circuit fixing portion 4, is located in the sealing groove. Taking an air passage needing to be sealed as the first annular air passage 331 as an example, the non-magnetic conductive seat 123 abuts against the air passage fixing portion 4, the upper pole piece 121, the lower pole piece 122 and the permanent magnet 124 are located between the non-magnetic conductive seat 123 and the air passage rotating portion 3, the permanent magnet 124 is connected to the non-magnetic conductive seat 123, the upper pole piece 121 and the lower pole piece 122 are disposed at two ends of the permanent magnet 124, and the first annular air passage 331 is located between the upper pole piece 121 and the permanent magnet 124.
In the magnetic fluid seal provided by the third embodiment, the permanent magnet 124, the pole shoe and the rotating part form a magnetic loop, and under the action of a magnetic field generated by the magnet, the magnetic fluid placed between the gap at the top end of the gas circuit rotating part 3 and the pole shoe is concentrated to form a liquid O-shaped ring, so that the sealing purpose is achieved. And only one magnetic fluid sealing structure 12 is needed to be arranged on one annular air channel 33, and rotary sealing parts do not need to be arranged on two sides of the annular air channel 33 respectively.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. The utility model provides a rotatory gas circuit mechanism, includes air inlet (41) and gas outlet (31), its characterized in that still includes:
the device comprises a fixed seat (1) and a rotating piece (2) rotating relative to the fixed seat (1);
the gas path fixing part (4) is fixedly connected with the fixing seat (1), and at least one gas inlet (41) is arranged on the gas path fixing part (4);
the gas circuit rotating part (3) is fixedly connected with the rotating part (2), and at least one gas outlet (31) is formed in the gas circuit rotating part (3);
the air inlet (41) and the air outlet (31) are communicated through an air passage;
the gas path rotating part (3) is connected with a mounting part (5), the mounting part (5) is provided with an adsorption surface, and the mounting part (5) is provided with at least one gas outlet hole (51) which is communicated with the gas outlet (31) and penetrates through the adsorption surface;
gas circuit fixed part (4) cover is established the outside of gas circuit rotating part (3), rotating member (2) cover is established inside fixing base (1), installed part (5) with the up end of gas circuit rotating part (3) is connected, the lower extreme of gas circuit rotating part (3) with the upper end of rotating member (2) is connected, the up end of installed part (5) forms the adsorption plane, gas circuit fixed part (4) fixing base (1) reaches rotating member (2) all is located the below of installed part (5), gas circuit rotating part (3) with gas circuit fixed part (4) rotate sealedly.
2. The rotary air channel mechanism as claimed in claim 1, further comprising a drive transmission assembly (7), wherein the drive transmission assembly (7) comprises a motor (71) and a driving gear (72) connected to an output shaft of the motor (71);
the rotating part (2) is a driven gear meshed with the driving gear (72), and the gas circuit rotating part (3) is fixedly connected to the end face of the driven gear.
3. The rotary air path mechanism according to claim 1, wherein the air path fixing part (4) and the fixing seat (1) are both cylindrical structures with accommodating cavities, the air inlet (41) is arranged on the inner side wall of the air path fixing part (4), and an air pipe interface connected with the air inlet (41) and an air pipe are located in the accommodating cavities.
4. The rotary air path mechanism as claimed in claim 1, wherein the air path comprises an air inlet channel (42), an annular air path (33) and an air outlet channel which are communicated in sequence, and the air inlet channel (42) is communicated with the air inlet (41);
air inlet channel (42) are followed the radial direction setting of gas circuit fixed part (4), annular air flue (33) are followed gas circuit rotating part (3) or the circumference direction setting of gas circuit fixed part (4), air outlet channel follows the axial direction setting of gas circuit rotating part (3).
5. The rotary air path mechanism according to claim 1, wherein the air path fixing part (4) is provided with a plurality of air inlet layers at intervals along the axial direction thereof, each air inlet layer is provided with at least one air inlet (41), and the air inlets (41) of two adjacent air inlet layers are arranged in a staggered manner.
6. The rotary air path mechanism according to claim 1, wherein the mounting member (5) is provided with at least one air guide hole (52) along a radial direction of a rotating shaft thereof, the upper end surface of the mounting member (5) is provided with a plurality of air outlet holes (51) at intervals corresponding to positions of the air guide holes (52), and the air guide holes (52) are respectively communicated with the air outlet (31) and the corresponding air outlet holes (51).
7. The rotary air channel mechanism according to claim 4, wherein the air channel rotating part (3) and the air channel fixing part (4) are rotationally sealed by spring energy storage sealing rings (10), and at least one spring energy storage sealing ring (10) is arranged on each side of each annular air channel (33) along the axial direction of the annular air channel.
8. The rotary air path mechanism according to claim 1, wherein a magnetic fluid seal is adopted between the air path rotating part (3) and the air path fixing part (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145682.3A CN110159858B (en) | 2018-02-12 | 2018-02-12 | Rotary gas circuit mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145682.3A CN110159858B (en) | 2018-02-12 | 2018-02-12 | Rotary gas circuit mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159858A CN110159858A (en) | 2019-08-23 |
| CN110159858B true CN110159858B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810145682.3A Active CN110159858B (en) | 2018-02-12 | 2018-02-12 | Rotary gas circuit mechanism |
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| Country | Link |
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| CN (1) | CN110159858B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112692795B (en) * | 2020-12-28 | 2024-05-31 | 江苏集萃精凯高端装备技术有限公司 | Precise air-floatation rotary table with high-vacuum suction disc |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05138580A (en) * | 1991-11-15 | 1993-06-01 | Fanuc Ltd | Power supplying and piping device used in mechanical rotary part |
| CN1896578A (en) * | 2005-10-28 | 2007-01-17 | 中国科学院长春光学精密机械与物理研究所 | Multi-path fluid rotary deflector |
| CN104565628B (en) * | 2013-10-18 | 2017-01-04 | 鸿富锦精密工业（深圳）有限公司 | Swivel joint and use the rotary table of this swivel joint |
| CN103759088A (en) * | 2013-12-23 | 2014-04-30 | 上海打捞局芜湖潜水装备厂 | Gas and liquid transmission slip ring |
| CN104325680B (en) * | 2014-10-07 | 2018-11-09 | 广东鸿铭智能股份有限公司 | Rotary frame |
| CN204819570U (en) * | 2015-07-28 | 2015-12-02 | 浙江瑞宏机器人有限公司 | Antiwind structure of manipulator |
| CN205689974U (en) * | 2016-06-02 | 2016-11-16 | 成都泓睿科技有限责任公司 | Inducing QI slip ring and rotary turnplate clamp device |
| CN106180560A (en) * | 2016-07-21 | 2016-12-07 | 东营市东胜机械自动化有限公司 | A kind of three arm housing apparatus and shell side method processed |
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