CN203628092U - Rotating joint for single shaft machine - Google Patents

Rotating joint for single shaft machine Download PDF

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Publication number
CN203628092U
CN203628092U CN201320872704.9U CN201320872704U CN203628092U CN 203628092 U CN203628092 U CN 203628092U CN 201320872704 U CN201320872704 U CN 201320872704U CN 203628092 U CN203628092 U CN 203628092U
Authority
CN
China
Prior art keywords
housing
main shaft
door
single shaft
block cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201320872704.9U
Other languages
Chinese (zh)
Inventor
薛睿斌
陈钢
董迎春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANXI CHANG CHENG MICROLIGHT EQUIPMENT CO Ltd
Original Assignee
SHANXI CHANG CHENG MICROLIGHT EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANXI CHANG CHENG MICROLIGHT EQUIPMENT CO Ltd filed Critical SHANXI CHANG CHENG MICROLIGHT EQUIPMENT CO Ltd
Priority to CN201320872704.9U priority Critical patent/CN203628092U/en
Application granted granted Critical
Publication of CN203628092U publication Critical patent/CN203628092U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a rotating joint for a single shaft machine. The rotating joint for the single shaft machine comprises a housing and a hollow rotating main shaft, wherein a block cover I and a block cover II are respectively arranged at the front end and the rear end of the housing, a through hole communicated with the interior of the housing is formed in the middle of the block cover I, three bearings are fixed in the housing along the axial direction, a first blocking cavity is formed between the bearing at the forefront of the housing and the inner wall of the block cover I at the front end of the housing, the rotating main shaft passes through the block cover II at the rear end of the housing and is installed in the housing, the bearings and a contact surface of the inner wall of the housing and the rotation main shaft are sealed, and the front end of the rotation main shaft is located inside the first blocking cavity. The rotating joint for the single shaft machine achieves negative pressure transfer or transmission through relative rotation of the rotating main shaft and the housing, achieves a sealing function due to the fact that the three level bearings are installed, and reduces loss of negative pressure to the minimum extent. Furthermore, the rotating joint for the single shaft machine is simple to manufacture, low in manufacturing cost, reliable in working, long in life, and suitable for mass use in actual production.

Description

Single shaft machine swivel joint
Technical field
The utility model relates to swivel joint, completes transmission or the negative pressure transmission of air pressure between counterrotating axle and axle.
Background technique
Reaching between counterrotating axle and axle or axle and other rotary part the transmission of air pressure or the major way of negative pressure transmission is to pass through swivel joint.
Swivel joint is element conventional in machine pneumatic mechanism, and axle had both guaranteed the axial position of between centers while connection by swivel joint with axle, also will guarantee the radial position of between centers, also will complete transmission or the negative pressure transmission of air pressure, and guarantee that efficiency of transmission is greater than 85% simultaneously.Transition by flexible pipe between axle and swivel joint connects, and also can reach the non-rectilinear transmission of between centers air pressure.
Transmit for the single shaft machine negative pressure in actual production, as shown in Figure 2, vacuum pump 12 connects by connecting tube 13 with swivel joint 17, realize the non-rectilinear transmission of negative pressure, swivel joint 17 is with equipment rotary work axle 14 by sealed pipe scyewed joint, and vacuum jig 15 connects with equipment rotary work axle 14.All couplings and parts all have hollow channel above, vacuum pump 12 work produce negative pressure, connect by a series of passage, finally produce adsorption force at the vacuum jig 15 of equipment rotary work axle 14, make on the firm vacuum jig 15 that is adsorbed on equipment of workpiece 16.
Swivel joint is important parts, machine spindle is High Rotation Speed state (1000 revs/min), and vacuum pump and connecting tube are staticly not rotate, the function of swivel joint is exactly to realize the effective transmission that should guarantee negative pressure, also will guarantee the rotary work of whole machine spindle.
In actual production work, can use emery, emery can be sucked vacuum line in a large number at vacuum attracting instrument mouth, larger to each component wear, especially causes swivel joint wearing and tearing gas leakage or thrust emery rotating.And buy standard piece be much plastics (or nonmetal) products, after damage, substantially can not keep in repair, renewal cost is also higher.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of single shaft machine swivel joint of good seal.
For solving above technical problem, the utility model adopts following technical characteristics.
A kind of single shaft machine swivel joint, comprise the rotary main shaft of housing and hollow, the front and back ends of housing is respectively equipped with door I and door II, door I middle part is provided with the through hole communicating with enclosure interior, in housing, be fixed with vertically three bearings, between bearing foremost and front end door I inwall, form the first obstruct cavity, rotary main shaft passes and packs enclosure interior into from rear end door II, the surface of contact sealing of bearing and inner walls and rotary main shaft, rotary main shaft front end is at the first obstruct cavity inside.
The utlity model has two counterrotating mechanisms, it is rotating part that rotary main shaft connects by pipe thread with the rotary main shaft of equipment; It is stationary part that door I is connected by connecting tube with vacuum generator.Two-part rotate relatively, complete effective transmission of negative pressure.
As the preferred scheme of one, in order to improve the sealing of door and housing joint, door I and door II and housing are connected by screw, and joint is provided with rubber gasket.
As the preferred scheme of another kind, the surface of contact of bearing and rotary main shaft is provided with circlip for shaft foremost, thus the position of rigid bearing.
The utility model is the relative rotation with housing by rotary main shaft, completes negative pressure transmission or transmission, three grades of bearings are installed are reached the effect of sealing, and minimum degree reaches the loss that reduces negative pressure.Swivel joint is made simple, and manufacturing expense is lower, reliable operation, and the life-span is longer, is applicable to use in batches in actual production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model single shaft machine swivel joint.
Connection schematic diagram when Fig. 2 is swivel joint use.
In figure, 1-housing, 2-rotary main shaft, 3-door I, 4-door II, 5-bearing, 6-first intercepts cavity, and 7-second intercepts cavity, and 8-the 3rd intercepts cavity, 9-screw, 10-rubber gasket, 11-circlip for shaft, 12-vacuum pump, 13-connecting tube, 14-equipment rotary work axle, 15-vacuum jig, 16-workpiece, 17-swivel joint.
Embodiment
As shown in Figure 1, a kind of single shaft machine swivel joint described in the utility model, comprise the rotary main shaft 2 of housing 1 and hollow, before housing 1, rear end is respectively equipped with door I3 and door II4, door I3 middle part is provided with the through hole communicating with housing 1 inside, in housing 1, be fixed with vertically three bearings 5, between bearing 5 foremost and front end door I3 inwall, form the first obstruct cavity 6, rotary main shaft 2 passes and packs housing 1 inside into from rear end door II4, bearing 5 seals with the surface of contact of housing 1 inwall and rotary main shaft 2, rotary main shaft 2 front ends are in the first obstruct cavity 6 inside.
Three bearings form three and intercept cavity in housing: first intercepts cavity 6, the second obstruct cavity 7 and the 3rd obstruct cavity 8, between three obstruct cavitys, intercepted by bearing, prevent the mutual leakage of air-flow, finally guarantee negative pressure in the first obstruct cavity interior 6, guarantee the effective transmission of negative pressure at pipeline.
As shown in Figure 1, door I3 is connected by screw 9 with housing 1 with door II4, and joint is provided with rubber gasket 10.
As shown in Figure 1, bearing 5 is provided with circlip for shaft 11 with the surface of contact of rotary main shaft 2 foremost.
As shown in Figure 2, door I3 connects by connecting tube 13 with vacuum pump 12, this connecting tube 13 can be axle or flexible pipe, rotary main shaft 2 connects by pipe thread with equipment rotary work axle 14, vacuum jig 15 connects with equipment rotary work axle 14, vacuum pump 12 work produce negative pressure, enter the first obstruct cavity 6 from connecting tube 13 through the through hole of door I3, again through the cavity of the hollow cavity access arrangement rotary work axle 14 of rotary main shaft 2, finally produce adsorption force at vacuum jig 15, make on the firm vacuum jig 14 that is adsorbed on equipment of workpiece 16.Transmission efficiency is higher than 85%.
In use, in the first obstruct cavity 6, inevitably can deposit the impurity such as a certain amount of emery, need to regularly open door I3 and clear up; Use after wearing and tearing, easily rotate dumb, this structure is quick detachable, after cleaning, can change at any time bearing or easily worn part, can reuse.

Claims (3)

1. a single shaft machine swivel joint, it is characterized in that: the rotary main shaft (2) that comprises housing (1) and hollow, before housing (1), rear end is respectively equipped with door I(3) and door II(4), door I(3) middle part is provided with the through hole communicating with housing (1) inside, in housing (1), be fixed with vertically three bearings (5), bearing (5) foremost and front end door I(3) form the first obstruct cavity (6) between inwall, rotary main shaft (2) is from rear end door II(4) through packing housing (1) inside into, bearing (5) seals with the surface of contact of housing (1) inwall and rotary main shaft (2), rotary main shaft (2) front end is in the first obstruct cavity (6) inside.
2. single shaft machine swivel joint according to claim 1, is characterized in that: door I(3) with door II(4) be connected by screw (9) with housing (1), joint is provided with rubber gasket (10).
3. single shaft machine swivel joint according to claim 1 and 2, is characterized in that: bearing (5) is provided with circlip for shaft (11) with the surface of contact of rotary main shaft (2) foremost.
CN201320872704.9U 2013-12-28 2013-12-28 Rotating joint for single shaft machine Expired - Lifetime CN203628092U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320872704.9U CN203628092U (en) 2013-12-28 2013-12-28 Rotating joint for single shaft machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320872704.9U CN203628092U (en) 2013-12-28 2013-12-28 Rotating joint for single shaft machine

Publications (1)

Publication Number Publication Date
CN203628092U true CN203628092U (en) 2014-06-04

Family

ID=50814569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320872704.9U Expired - Lifetime CN203628092U (en) 2013-12-28 2013-12-28 Rotating joint for single shaft machine

Country Status (1)

Country Link
CN (1) CN203628092U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107378433A (en) * 2017-07-21 2017-11-24 苏州凯磊胜自动化科技有限公司 Full-automatic pen machine loading device and the method for assembling pen core protective case

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107378433A (en) * 2017-07-21 2017-11-24 苏州凯磊胜自动化科技有限公司 Full-automatic pen machine loading device and the method for assembling pen core protective case

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CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20140604