CN211162874U - Single-channel high-speed rotating joint - Google Patents

Abstract

The utility model discloses a high-speed rotary joint of single channel, including rotation axis, rotary joint seat and elastic sealing element, the rotary joint seat is provided with changes the hole, changes the hole and is provided with annular channel, and two elastic sealing element are located annular channel upper and lower both ends respectively and cup joint in the rotation axis upper end, and this high-speed rotary joint of single channel can realize good sealed effect, can prevent again that the workstation from high-speed when rotatory, and elastic sealing element is easily burnt out because of holding the contact tightly, guarantees the normal work of lathe.

Description

Single-channel high-speed rotating joint

Technical Field

The utility model relates to a machine tool equipment technical field, in particular to high-speed rotary joint of single channel.

Background

The five-axis linkage numerical control machine tool is generally provided with a cradle and a workbench, a pneumatic or hydraulic clamp is generally arranged on the workbench, and a workpiece is clamped through the pneumatic or hydraulic clamp. The clamp clamps the workpiece under the action of the spring in a normal state, and when high-pressure gas or liquid is introduced, the spring is jacked up to loosen the workpiece, so that the operation of unloading the workpiece is realized. The workstation is installed on the rotary joint usually, however, current rotary joint sealing effect is relatively poor, takes place the sealing member to burn out easily when the workstation rotates at a high speed moreover and leads to sealed the inefficacy, influences the normal work of lathe.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a high-speed rotary joint of single channel, it can realize good sealed effect, when can preventing the high-speed rotation of workstation again, elastic sealing element is easily burnt out because of holding the contact piece tightly, guarantees the normal work of lathe.

According to the utility model discloses a single-channel high-speed rotary joint of the first aspect embodiment, including the rotation axis, be equipped with along its axial arrangement, be used for carrying the first transfer passage of working medium; the rotary joint seat is rotatably sleeved at the upper end of the rotating shaft and used for supporting a workbench, a second conveying channel for conveying a working medium is arranged on the rotary joint seat, a rotary hole connected with the rotating shaft is further formed in the rotary joint seat, an annular channel is formed in the rotary hole, and the first conveying channel and the second conveying channel are respectively communicated with the annular channel; elastic sealing element is provided with two, two elastic sealing element is located respectively annular channel upper and lower both ends and cup joint in the rotation axis upper end, elastic sealing element be equipped with the first fender ring of rotation axis outer wall butt and with the second fender ring of commentaries on classics downthehole wall butt, first fender ring with the second fender is formed with the orientation between the ring annular channel open-ended ring channel.

According to the utility model discloses high-speed rotary joint of single channel and washing equipment have following beneficial effect at least: the single-channel high-speed rotary joint is provided with the rotary hole through the rotary joint seat, the rotary hole is provided with the annular channel, and the two elastic sealing elements are respectively positioned at the upper end and the lower end of the annular channel and are sleeved at the upper end of the rotary shaft, so that in the working process, when the rotary joint seat rotates at a high speed, a working medium does not need to be introduced into the first conveying channel of the rotary shaft, at the moment, the elastic sealing elements can enable the first retaining ring and the second retaining ring to be respectively abutted against the rotary shaft and the rotary hole under the action of self elasticity to realize sealing, the friction force ratio is smaller, and the elastic sealing elements are not easy; when the work piece is lifted off to needs, the rotary joint seat stops operating, the first conveying passage of rotation axis lets in working medium and carries out corresponding drive to the anchor clamps of workstation behind annular channel and the second conveying passage, the annular groove through elastic sealing spare extrudees elastic sealing spare when the pressure of working medium passes through annular channel, thereby make first fender ring and second fender ring push up tight rotation axis and commentaries on classics hole respectively, thereby can realize good sealed effect, simultaneously this moment because there is not relative motion between elastic sealing spare and the rotary joint seat, consequently can not produce the phenomenon that the friction generates heat and burns out elastic sealing spare.

According to some embodiments of the utility model, install the bearing in the pivot hole, the rotation axis is rotatable to be installed in the bearing.

According to some embodiments of the utility model, change the hole and be located the bearing below is provided with the bearing and ends the packing ring.

According to some embodiments of the utility model, change the hole and be located the bearing top is provided with the hole retaining ring.

According to some embodiments of the utility model, the downthehole upper end of commentaries on classics is installed the rotary joint closing cap.

According to some embodiments of the utility model, the second conveying passage is provided with the drain, the drain is installed and is blockked up.

According to some embodiments of the invention, the connector is installed to the export of second transfer passage.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

Fig. 1 is a schematic structural diagram of a single-channel high-speed rotary joint according to an embodiment of the present invention;

Fig. 2 is an enlarged view of a structure a in fig. 1.

Reference numerals:

A rotating shaft 100; a first conveyance path 110; a rotary joint base 200; a second conveyance path 210; an annular channel 220; a rotating hole 230; an elastic sealing member 300; a first baffle ring 310; a second retainer ring 320; an annular groove 330; a work table 400; a rotary joint cover 500; plugging 600; a connector 700; a bearing 800; bearing stop washer 900.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 2, a single-channel high-speed rotary joint according to an embodiment of the present invention includes a rotary shaft 100, a rotary joint base 200, and an elastic sealing member 300. The rotating shaft 100 is provided with a first feeding passage 110 arranged along an axial direction thereof for feeding a working medium, which may be gas or liquid. The rotary joint seat 200 is used for supporting the workbench 400, the workbench 400 can be fixed on the rotary joint seat 200 through a threaded connection and the like, the rotary joint seat 200 is driven by a motor to be rotatably sleeved at the upper end of the rotating shaft 100, the rotary joint seat 200 is provided with a second conveying channel 210 for conveying a working medium, the rotary joint seat 200 is further provided with a rotary hole 230 connected with the rotating shaft 100, the rotary hole 230 is provided with an annular channel 220, the first conveying channel 110 and the second conveying channel 210 are respectively communicated with the annular channel 220, and therefore when the rotary joint seat 200 rotates to any position, the first conveying channel 110 can be communicated with the second conveying channel 210 through the annular channel 220. The number of the elastic sealing elements 300 is two, the two elastic sealing elements 300 are respectively located at the upper end and the lower end of the annular channel 220 and are sleeved at the upper end of the rotating shaft 100, the elastic sealing element 300 is provided with a first retaining ring 310 abutted against the outer wall of the rotating shaft 100 and a second retaining ring 320 abutted against the inner wall of the rotating hole 230, an annular groove 330 opening towards the annular channel 220 is formed between the first retaining ring 310 and the second retaining ring 320, the elastic sealing element 300 can be integrally formed by plastic and other materials, and can be in the form of a framework oil seal and the like.

The single-channel high-speed rotary joint is characterized in that the rotary joint seat 200 is provided with the rotary hole 230, the rotary hole 230 is provided with the annular channel 220, the two elastic sealing elements 300 are respectively positioned at the upper end and the lower end of the annular channel 220 and are sleeved at the upper end of the rotary shaft 100, so that in the working process, when the rotary joint seat 200 rotates at a high speed, the first conveying channel 110 of the rotary shaft 100 does not need to be introduced with a working medium, at the moment, the elastic sealing elements 300 can enable the first retaining ring 310 and the second retaining ring 320 to be respectively abutted against the rotary shaft 100 and the rotary hole 230 under the action of self elasticity to realize sealing, the friction ratio is small, and the elastic sealing elements 300 are not easily; when a workpiece needs to be dismounted, the rotary joint seat 200 stops operating, the first conveying channel 110 of the rotating shaft 100 is filled with working medium and correspondingly drives the clamp of the workbench 400 after passing through the annular channel 220 and the second conveying channel 210, the elastic sealing element 300 is extruded through the annular groove 330 of the elastic sealing element 300 when the pressure of the working medium passes through the annular channel 220, so that the first retaining ring 310 and the second retaining ring 320 respectively prop against the rotating shaft 100 and the rotating hole 230, a good sealing effect can be realized, and meanwhile, because the elastic sealing element 300 and the rotary joint seat 200 do not move relatively, the phenomenon that the elastic sealing element 300 is burnt due to friction and heat cannot be generated. This high-speed rotary joint of single channel can realize good sealed effect, can prevent again that elastic sealing element 300 from being burnt out easily because of holding the contact tightly when the workstation is high-speed rotatory, has effectively guaranteed the normal work of lathe.

In some embodiments, the rotating hole 230 is installed with a bearing 800, the rotating shaft 100 is rotatably installed in the bearing 800, and the bearing 800 may be a ball bearing, so that a good rotational connection between the rotary joint base 200 and the rotating shaft 100 can be achieved.

Specifically, the rotating hole 230 is provided with a bearing stop washer 900 below the bearing 800, so that the lower end of the bearing 800 can be well limited.

Of course, the rotating hole 230 may be further provided with an inner hole retainer ring above the bearing 800, so as to perform a good limiting function on the upper end of the bearing 800, and prevent the bearing 800 from being easily loosened from the rotating hole.

In some embodiments, the rotary joint cover 500 is installed at the upper end of the rotary hole 230, so that dust and other foreign matters can be prevented from falling into the rotary hole 230 to affect the rotation performance of the rotary shaft 100.

In some embodiments, the second conveying path 210 is provided with a leakage opening, and the leakage opening is provided with a plug 600, so that a user can conveniently export the working medium through the leakage opening according to actual conditions, and operations such as maintenance and the like can be performed. Of course, the first conveyance path 210 may be provided with a similar structure.

In some embodiments, the outlet of the second conveying path 210 is provided with a connector 700, and the connector 700 may be in the form of a quick connector, so that a user can conveniently connect and install the connector 700 directly through a connecting pipe.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (7)

1. High-speed rotary joint of single channel, its characterized in that includes:

The rotating shaft is provided with a first conveying channel which is arranged along the axial direction of the rotating shaft and is used for conveying a working medium;

The rotary joint seat is rotatably sleeved at the upper end of the rotating shaft and used for supporting a workbench, a second conveying channel for conveying a working medium is arranged on the rotary joint seat, a rotary hole connected with the rotating shaft is further formed in the rotary joint seat, an annular channel is formed in the rotary hole, and the first conveying channel and the second conveying channel are respectively communicated with the annular channel;

Elastic sealing element is provided with two, two elastic sealing element is located respectively annular channel upper and lower both ends and cup joint in the rotation axis upper end, elastic sealing element be equipped with the first fender ring of rotation axis outer wall butt and with the second fender ring of commentaries on classics downthehole wall butt, first fender ring with the second fender is formed with the orientation between the ring annular channel open-ended ring channel.

2. The single pass high speed rotary union of claim 1, wherein: the rotating hole is internally provided with a bearing, and the rotating shaft is rotatably arranged in the bearing.

3. The single pass high speed rotary union of claim 2, wherein: and a bearing stop washer is arranged below the bearing in the rotating hole.

4. The single pass high speed rotary union of claim 2, wherein: and the rotating hole is positioned above the bearing and is provided with an inner hole retainer ring.

5. The single pass high speed rotary union of claim 1, wherein: and a rotary joint sealing cover is arranged at the upper end of the rotary hole.

6. The single pass high speed rotary union of claim 1, wherein: the second conveying channel is provided with a drain opening, and the drain opening is provided with a plug.

7. The single pass high speed rotary union of any one of claims 1 to 6, wherein: and a connector is arranged at the outlet of the second conveying channel.

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