CN111677866A - External drive type sealing element - Google Patents

External drive type sealing element Download PDF

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Publication number
CN111677866A
CN111677866A CN202010533823.6A CN202010533823A CN111677866A CN 111677866 A CN111677866 A CN 111677866A CN 202010533823 A CN202010533823 A CN 202010533823A CN 111677866 A CN111677866 A CN 111677866A
Authority
CN
China
Prior art keywords
ring body
ring
periphery
rod
driving
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.)
Withdrawn
Application number
CN202010533823.6A
Other languages
Chinese (zh)
Inventor
陶伟
陆晖绣
汪子昂
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.)
Dongtai Yuedong Rubber Sealing Member Factory
Original Assignee
Dongtai Yuedong Rubber Sealing Member Factory
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 Dongtai Yuedong Rubber Sealing Member Factory filed Critical Dongtai Yuedong Rubber Sealing Member Factory
Priority to CN202010533823.6A priority Critical patent/CN111677866A/en
Publication of CN111677866A publication Critical patent/CN111677866A/en
Withdrawn legal-status Critical Current

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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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
    • F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)

Abstract

The invention discloses an external driving type sealing element which comprises a hard ring body, an inner side ring body, a connecting ring body, a sealing ring body and an external adjusting mechanism, wherein the hard ring body is arranged on the inner side of the connecting ring body; the invention rotates the outer end of the external driving rod at one side of the hard ring body, so that the toggle head at the inner end of the external driving rod rotates to abut against the toggle block at the upper end of the inner part of the arc-shaped toggle groove of the driving ring, and simultaneously, the outer end of the external driving rod at the other side of the hard ring body reversely rotates, so that the toggle head at the inner end of the external driving rod is far away from the toggle block at the upper end of the inner part of the arc-shaped toggle groove, and a space is reserved for the rotation of the driving ring.

Description

External drive type sealing element
Technical Field
The invention relates to an external driving type sealing element.
Background
Most of sealing rings are made of soft materials such as rubber, sealing force is provided by the elasticity of the materials to achieve a sealing effect, the cross section of the existing sealing ring is mostly in a standard circle shape or an oval shape, the inner and outer circumferential surfaces of the existing sealing ring are extruded to form inner and outer sealing surfaces, and the sealing ring with the structure is convenient to manufacture and low in cost and is widely applied to various industries. However, after the sealing ring is abutted against the rotating shaft for a long time, the sealing ring is deformed and further is abutted infirm, and in addition, the sealing ring is generally manufactured in a certain size, the sealing caliber cannot be finely adjusted, and the application range is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the external driving type sealing element can be adjusted at any time, is firm in butt joint, good in sealing performance and capable of finely adjusting the butt joint caliber.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
an external driving type sealing element comprises a hard ring body, an inner side ring body, a connecting ring body, a sealing ring body and an external adjusting mechanism; the hard ring body is arranged on the outer side of the periphery of the inner ring body; the middle of the outer side of the periphery of the sealing ring body is connected with the middle of the inner side of the periphery of the inner side ring body through a connecting ring body; the upper part and the lower part of the sealing ring body are of arc-shaped ring body structures bent towards the center axis; the periphery of the inside of the sealing ring body is provided with a concealed annular cavity; the upper end and the lower end of the sealing ring body are respectively provided with an abutting ring; the abutting ring is made of a high-elasticity rubber material; the external adjusting mechanism comprises a positioning rod, a driving ring, a driven ring, a guide cylinder, a guide post, an external driving rod and a shifting block; two positioning rods are respectively arranged on two sides of the sealing ring body; the outer end of the positioning rod is connected to the inner side surface of the hard ring body, and the inner end of the positioning rod sequentially penetrates through the inner side ring body, the connecting ring body and the sealing ring body and then extends into the sealing ring body; the driving ring is arranged in the concealed annular cavity of the sealing ring body; the outer sides of the periphery of the driving ring are rotatably clamped on the inner end of the positioning rod; annular grooves are formed in the periphery of the upper end and the periphery of the lower end of the driving ring; the ring grooves at the periphery of the upper end and the periphery of the lower end of the driving ring are internally provided with internal thread ring surfaces with threads oppositely arranged; the periphery of the inner side of the driven ring is provided with an external thread ring surface; the annular grooves on the periphery of the upper end and the periphery of the lower end of the driving ring are respectively connected with a driven ring in a threaded manner; two sides of the driven ring are respectively provided with a guide post; the upper end and the lower end of the two sides of the positioning rod are respectively provided with a guide cylinder; the guide posts on the two sides of the driven ring are respectively inserted into the guide cylinders in a sliding manner; the outer ends of the driven rings are respectively connected to the inner sides of the upper end and the lower end of the sealing ring body; the outer sides of the periphery of the driving ring are provided with annular clamping grooves; the inner end of the positioning rod is provided with arc-shaped clamping teeth; the driving ring is rotatably clamped on the arc-shaped clamping teeth at the inner end of the positioning rod through annular clamping grooves on the outer sides of the periphery; two ends of the inner side of the annular clamping groove of the driving ring are respectively communicated with an arc-shaped toggle groove; the upper end of the interior of the arc-shaped toggle groove is provided with a toggle block; two sides of the hard ring body are respectively provided with an adjusting groove; a cross-connecting channel is arranged inside the positioning rod; two ends of the cross-connecting channel of the positioning rod are respectively communicated with the adjusting groove of the hard ring body and the arc-shaped toggle groove of the driving ring; an external driving rod is rotationally clamped in the through channel in the positioning rod; the outer end of the external driving rod is arranged in the locking groove of the hard ring body, and the inner end of the external driving rod extends into the arc-shaped toggle groove of the driving ring; a toggle head is vertically arranged at the inner end of the external driving rod; the poking head is abutted against the rear side of the poking block.
Further, the device also comprises a positioning screw rod; the upper ends of the adjusting grooves on the two sides of the hard ring body are provided with positioning grooves; a thread channel is arranged between the positioning groove and the adjusting groove; the positioning screw rod is in threaded connection with the threaded through hole; the upper end of the positioning screw rod is positioned in the positioning groove, and the lower end of the positioning screw rod is rotatably connected to the upper side of the outer end of the external driving rod in an abutting or separating mode.
Further, an annular rotary clamping groove is formed in the penetrating channel of the positioning rod; a rotary snap ring is arranged on the outer side of the periphery of the external driving rod; the external driving rod is rotationally clamped on an annular rotary clamping groove in the cross-connecting channel of the positioning rod through rotary clamping rings on the outer sides of the periphery.
Furthermore, a plurality of connecting buckles are uniformly arranged on the periphery of the inner sides of the upper end and the lower end of the sealing ring body respectively; the outer end of the driven ring is uniformly connected to the connecting buckle at the end part of the sealing ring body through a plurality of steel wires.
Further, the inner ring body, the connecting ring body and the sealing ring body are all made of rubber materials.
Further, the hard ring body is made of stainless steel material.
The invention has the advantages of
1. The adjusting structure is externally arranged on the hard ring body, the toggle head at the inner end of the external driving rod is enabled to rotate to press the toggle block at the upper end of the inner part of the arc-shaped toggle groove of the driving ring by rotating the outer end of the external driving rod at one side of the hard ring body, meanwhile, the outer end of the external driving rod at the other side of the hard ring body is reversely rotated, the toggle head at the inner end of the external driving rod is enabled to be far away from the toggle block at the upper end of the inner part of the arc-shaped toggle groove, a space is reserved for the rotation of the driving ring, so that the whole driving ring is driven to be clamped and rotated at the inner end of the positioning rod by the pressing of the toggle head of the external driving rod at one side of the hard ring body, when the toggle head at the inner end of the external driving rod at the other side of the hard ring body is contacted, can be adjusted at any time and is very convenient.
2. The invention changes the structure of the traditional sealing ring, the upper part and the lower part of the sealing ring body of the invention are in an arc ring body structure which is bent towards the middle axis, the upper end and the lower end of the sealing ring body are tightly abutted to the periphery of the rotating shaft to realize double sealing effect, meanwhile, the upper part and the lower part of the sealing ring body are of a structure bending towards the middle axis, so that a concealed annular cavity is formed around the inside of the sealing ring body, an installation space of an external adjusting mechanism is provided, the driving ring drives the driven ring to move up and down by rotating the driving ring, the sealing ring body is pulled to perform bending motion at the upper end and the lower end, so that the abutting sealing degree of the upper end and the lower end of the sealing ring body to the periphery of an external rotating shaft is improved, the sealing performance is improved, the caliber size of the upper end and the lower end of the sealing ring body can be finely adjusted, the sealing ring body is adaptive to rotating shafts with different diameters, and the use is more flexible.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic side view of the seal ring body and external adjustment mechanism of the present invention.
Fig. 3 is a partially enlarged schematic structural diagram of the external adjusting mechanism of the present invention.
FIG. 4 is an enlarged schematic structural view of the toggle head and the toggle block at the upper end inside the arc-shaped toggle groove at the position A in FIG. 2.
FIG. 5 is a schematic view of the top view of the toggle head and the toggle block at the upper end of the interior of the arc-shaped toggle groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, an external driving type sealing member includes a hard ring body 1, an inner side ring body 2, a connecting ring body 3, a sealing ring body 4, and an external adjusting mechanism 5; the hard ring body 1 is arranged on the outer side of the periphery of the inner ring body 2; the middle of the outer side of the periphery of the sealing ring body 4 is connected with the middle of the inner side of the periphery of the inner side ring body 2 through a connecting ring body 3; the upper part and the lower part of the sealing ring body 4 are of arc-shaped ring body structures bent towards the center axis; the inner periphery of the sealing ring body 4 is provided with a concealed annular cavity 41; the upper end and the lower end of the sealing ring body 4 are respectively provided with an abutting ring 42; the abutment collar 42 is made of a highly elastic rubber material; the external adjusting mechanism 5 comprises a positioning rod 51, a driving ring 52, a driven ring 53, a guide cylinder 55, a guide post 54, an external driving rod 56 and a shifting block 57; two sides of the sealing ring body 4 are respectively provided with a positioning rod 51; the outer end of the positioning rod 51 is connected to the inner side surface of the hard ring body 1, and the inner end of the positioning rod sequentially penetrates through the inner side ring body 2, the connecting ring body 3 and the sealing ring body 4 and then extends into the sealing ring body 4; the driving ring 52 is arranged in the concealed annular cavity 41 of the sealing ring body 4; the outer sides of the periphery of the driving ring 52 are rotatably clamped on the inner end of the positioning rod 51; annular grooves 524 are formed in the periphery of the upper end and the periphery of the lower end of the driving ring 52; the ring grooves 524 on the periphery of the upper end and the periphery of the lower end of the driving ring 52 are internally provided with internal thread ring surfaces with opposite threads; the periphery of the inner side of the driven ring 53 is provided with an external thread ring surface; the annular grooves 524 on the periphery of the upper end and the periphery of the lower end of the driving ring 52 are respectively in threaded connection with a driven ring 53; two sides of the driven ring 53 are respectively provided with a guide post 54; the upper end and the lower end of the two sides of the positioning rod 51 are respectively provided with a guide cylinder 55; the guide posts 54 on both sides of the driven ring 53 are respectively inserted and connected into the guide cylinders 55 in a sliding manner; the outer ends of the driven rings 53 are connected to the inner sides of the upper and lower ends of the sealing ring body 4, respectively. The outer side of the periphery of the driving ring 52 is provided with an annular clamping groove 523; the inner end of the positioning rod 51 is provided with an arc-shaped clamping tooth 511; the driving ring 52 is rotatably clamped on the arc clamping teeth 511 at the inner end of the positioning rod 51 through annular clamping grooves 523 at the outer sides of the periphery; two ends of the inner side of the annular clamping groove 523 of the driving ring 52 are respectively communicated with an arc-shaped toggle groove 522; the upper end inside the arc-shaped toggle groove 522 is provided with a toggle block 57; two sides of the hard ring body 1 are respectively provided with an adjusting groove 11; a cross-connecting channel 512 is arranged in the positioning rod 51; two ends of the through channel 512 of the positioning rod 51 are respectively communicated with the adjusting groove 11 of the hard ring body 1 and the arc toggle groove 522 of the driving ring 52; the through channels 512 in the positioning rod 51 are respectively and rotationally clamped with an external driving rod 56; the outer end 561 of the external driving rod 56 is arranged in the locking groove 11 of the hard ring body 1, and the inner end of the external driving rod 56 extends into the arc-shaped toggle groove 522 of the driving ring 52; a toggle head 562 is vertically arranged at the inner end of the external driving rod 56; the toggle head 562 abuts against the rear side of the toggle block 57.
As shown in fig. 1 to 5, it is further preferable that a positioning screw 6 is further included; the upper ends of the adjusting grooves 11 on the two sides of the hard ring body 1 are provided with positioning grooves 12; a thread channel is arranged between the positioning groove 12 and the adjusting groove 11; the positioning screw rod 6 is in threaded connection with the threaded through hole; the upper end of the positioning screw 6 is located in the positioning groove 12, and the lower end is connected to the upper side of the outer end 561 of the external driving rod 56 in a rotating abutting or separating manner. Further, an annular rotary clamping groove 519 is arranged in the penetrating channel 512 of the positioning rod 51; a rotary snap ring 568 is arranged on the outer side of the periphery of the external driving rod 56; the external driving rod 56 is rotatably clamped on the annular rotary clamping groove 519 in the through channel 512 of the positioning rod 51 through the rotary clamping ring 568 on the outer side of the periphery. Furthermore, a plurality of connecting buckles 43 are respectively and uniformly arranged on the periphery of the inner sides of the upper end and the lower end of the sealing ring body 4; the outer end of the driven ring 53 is uniformly connected to the connecting buckle 43 at the end of the sealing ring body 4 through a plurality of steel wires 44. Further, the inner ring body 2, the connecting ring body 3 and the sealing ring body 4 are all made of rubber materials. Further, the hard ring body 1 is made of stainless steel material.
The adjusting structure is externally arranged on the hard ring body 1, the toggle head 562 at the inner end of the external driving rod 56 rotates to press the toggle block 57 at the upper end inside the arc-shaped toggle groove 522 of the driving ring 52 by rotating the outer end 561 of the external driving rod 56 at one side of the hard ring body 1, and the outer end 561 of the external driving rod 56 at the other side of the hard ring body 1 rotates reversely, so that the toggle head 562 at the inner end of the external driving rod 56 is far away from the toggle block 57 at the upper end inside the arc-shaped toggle groove 522, a space is reserved for the rotation of the driving ring 52, the whole driving ring 52 is driven to be clamped and rotated at the inner end of the positioning rod 51 by the pressing of the toggle head 562 of the external driving rod 56 at one side of the hard ring body 1, when the toggle head 562 at the inner end of the external driving rod 56 at the other side of the hard, reverse operation can realize opposite regulation effect, thereby realized adjusting externalization through the rotation of two external actuating levers 56 like this, can adjust at any time and convenience very.
The invention changes the structure of the traditional sealing ring, the upper part and the lower part of the sealing ring body 4 of the invention are of arc ring body structures bending towards the middle axis, the periphery of the rotating shaft is tightly abutted by the upper end and the lower end of the sealing ring body 4, thereby realizing double sealing effect, simultaneously, the upper part and the lower part of the sealing ring body 4 are of structures bending towards the middle axis, thereby forming a concealed annular cavity 41 on the inner periphery of the sealing ring body 4, providing an installation space of an external adjusting mechanism 5, the driving ring 52 drives a driven ring 53 to move up and down by rotating the driving ring 52, thereby pulling the upper end and the lower end of the sealing ring body 4 to perform bending movement, further improving the abutting sealing degree of the upper end and the lower end of the sealing ring body 4 on the periphery of the external rotating shaft, improving the sealing performance, and the other invention can finely adjust the caliber size of the upper end and the, the use is more flexible.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. An external driving type sealing element is characterized by comprising a hard ring body, an inner side ring body, a connecting ring body, a sealing ring body and an external adjusting mechanism; the hard ring body is arranged on the outer side of the periphery of the inner ring body; the middle of the outer side of the periphery of the sealing ring body is connected with the middle of the inner side of the periphery of the inner side ring body through a connecting ring body; the upper part and the lower part of the sealing ring body are of arc-shaped ring body structures bent towards the center axis; the periphery of the inside of the sealing ring body is provided with a concealed annular cavity; the upper end and the lower end of the sealing ring body are respectively provided with an abutting ring; the abutting ring is made of a high-elasticity rubber material; the external adjusting mechanism comprises a positioning rod, a driving ring, a driven ring, a guide cylinder, a guide post, an external driving rod and a shifting block; two positioning rods are respectively arranged on two sides of the sealing ring body; the outer end of the positioning rod is connected to the inner side surface of the hard ring body, and the inner end of the positioning rod sequentially penetrates through the inner side ring body, the connecting ring body and the sealing ring body and then extends into the sealing ring body; the driving ring is arranged in the concealed annular cavity of the sealing ring body; the outer sides of the periphery of the driving ring are rotatably clamped on the inner end of the positioning rod; annular grooves are formed in the periphery of the upper end and the periphery of the lower end of the driving ring; the ring grooves at the periphery of the upper end and the periphery of the lower end of the driving ring are internally provided with internal thread ring surfaces with threads oppositely arranged; the periphery of the inner side of the driven ring is provided with an external thread ring surface; the annular grooves on the periphery of the upper end and the periphery of the lower end of the driving ring are respectively connected with a driven ring in a threaded manner; two sides of the driven ring are respectively provided with a guide post; the upper end and the lower end of the two sides of the positioning rod are respectively provided with a guide cylinder; the guide posts on the two sides of the driven ring are respectively inserted into the guide cylinders in a sliding manner; the outer ends of the driven rings are respectively connected to the inner sides of the upper end and the lower end of the sealing ring body; the outer sides of the periphery of the driving ring are provided with annular clamping grooves; the inner end of the positioning rod is provided with arc-shaped clamping teeth; the driving ring is rotatably clamped on the arc-shaped clamping teeth at the inner end of the positioning rod through annular clamping grooves on the outer sides of the periphery; two ends of the inner side of the annular clamping groove of the driving ring are respectively communicated with an arc-shaped toggle groove; the upper end of the interior of the arc-shaped toggle groove is provided with a toggle block; two sides of the hard ring body are respectively provided with an adjusting groove; a cross-connecting channel is arranged inside the positioning rod; two ends of the cross-connecting channel of the positioning rod are respectively communicated with the adjusting groove of the hard ring body and the arc-shaped toggle groove of the driving ring; an external driving rod is rotationally clamped in the through channel in the positioning rod; the outer end of the external driving rod is arranged in the locking groove of the hard ring body, and the inner end of the external driving rod extends into the arc-shaped toggle groove of the driving ring; a toggle head is vertically arranged at the inner end of the external driving rod; the poking head is abutted against the rear side of the poking block.
2. The outboard drive seal of claim 1, further comprising a set screw; the upper ends of the adjusting grooves on the two sides of the hard ring body are provided with positioning grooves; a thread channel is arranged between the positioning groove and the adjusting groove; the positioning screw rod is in threaded connection with the threaded through hole; the upper end of the positioning screw rod is positioned in the positioning groove, and the lower end of the positioning screw rod is rotatably connected to the upper side of the outer end of the external driving rod in an abutting or separating mode.
3. The external driven seal of claim 1, wherein the cross-over channel of the positioning rod is provided with an annular rotary slot; a rotary snap ring is arranged on the outer side of the periphery of the external driving rod; the external driving rod is rotationally clamped on an annular rotary clamping groove in the cross-connecting channel of the positioning rod through rotary clamping rings on the outer sides of the periphery.
4. The external drive type sealing element according to claim 1, wherein a plurality of connecting buckles are respectively and uniformly arranged on the inner periphery of the upper end and the lower end of the sealing ring body; the outer end of the driven ring is uniformly connected to the connecting buckle at the end part of the sealing ring body through a plurality of steel wires.
5. The outboard drive seal of claim 1, wherein said inner ring, said connecting ring, and said seal ring are all made of a rubber material.
6. The outboard drive seal of claim 1, wherein said hard ring is made of a stainless steel material.
CN202010533823.6A 2020-06-12 2020-06-12 External drive type sealing element Withdrawn CN111677866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010533823.6A CN111677866A (en) 2020-06-12 2020-06-12 External drive type sealing element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010533823.6A CN111677866A (en) 2020-06-12 2020-06-12 External drive type sealing element

Publications (1)

Publication Number Publication Date
CN111677866A true CN111677866A (en) 2020-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010533823.6A Withdrawn CN111677866A (en) 2020-06-12 2020-06-12 External drive type sealing element

Country Status (1)

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CN (1) CN111677866A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112412351A (en) * 2020-11-29 2021-02-26 江苏力克石油机械有限公司 Oil production pipe anti-disengaging structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201140089Y (en) * 2007-11-27 2008-10-29 中国中材国际工程股份有限公司 Slipper cover sealing structure of large-scale slipper tube mill
CN206449200U (en) * 2017-01-12 2017-08-29 河南东和环保科技股份有限公司 A kind of wide arc gap huge revolving mechanism dynamic sealing means
CN206988425U (en) * 2017-06-07 2018-02-09 济南重工股份有限公司 A kind of grinding machine bearing seal adjustment structure
CN210087997U (en) * 2019-06-24 2020-02-18 成都建筑材料工业设计研究院有限公司 Sealing structure of tube mill sliding shoe cover

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201140089Y (en) * 2007-11-27 2008-10-29 中国中材国际工程股份有限公司 Slipper cover sealing structure of large-scale slipper tube mill
CN206449200U (en) * 2017-01-12 2017-08-29 河南东和环保科技股份有限公司 A kind of wide arc gap huge revolving mechanism dynamic sealing means
CN206988425U (en) * 2017-06-07 2018-02-09 济南重工股份有限公司 A kind of grinding machine bearing seal adjustment structure
CN210087997U (en) * 2019-06-24 2020-02-18 成都建筑材料工业设计研究院有限公司 Sealing structure of tube mill sliding shoe cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112412351A (en) * 2020-11-29 2021-02-26 江苏力克石油机械有限公司 Oil production pipe anti-disengaging structure

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Application publication date: 20200918