CN213575521U

CN213575521U - Improved mechanical seal of stirrer

Info

Publication number: CN213575521U
Application number: CN202022163684.0U
Authority: CN
Inventors: 陈建华
Original assignee: Zhangjiagang Free Trade Zone Jiaruide Mechanical Equipment Co ltd
Current assignee: Zhangjiagang Free Trade Zone Jiaruide Mechanical Equipment Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-06-29
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a modified agitator mechanical seal, including fixed lid, a sealing ring, the butt piece, agitator box and solid fixed ring, logical groove has been seted up on the agitator box, it has a fixed section of thick bamboo to lead to the inslot cooperation, the one end structure of a fixed section of thick bamboo has fixed lid, fixed lid is located the outside of agitator box and is provided with the first bolt of multiunit, first bolt screw thread passes fixed lid and penetrates in the agitator box, with fixed lid fastening on the agitator box, and lead to one side of groove contact on a fixed section of thick bamboo and the agitator box and seted up the multiunit ring channel, the gomphosis has first rubber ring in the ring channel, the outer fringe face butt agitator box's of first rubber ring logical groove wall, the logical inslot of agitator box still is provided with the (mixing) shaft. This modified agitator mechanical seal can directly dismantle, and the maintenance of being convenient for, and can keep good sealed effect when the (mixing) shaft rotates and produces the vibration, can weaken the vibration range of (mixing) shaft simultaneously, has prolonged mechanical seal's life.

Description

Improved mechanical seal of stirrer

Technical Field

The utility model belongs to the technical field of mechanical seal, concretely relates to modified agitator mechanical seal.

Background

The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.

Present mechanical seal is not convenient for maintain, needs split (mixing) shaft and agitator when dismantling, then dismantles mechanical seal and gets off to maintain, and its dismouting step is comparatively loaded down with trivial details, consuming time power, and the (mixing) shaft is when rotating, and the vibration of skew axle center can take place for the (mixing) shaft tip, can influence sealed effect, and the too big wearing and tearing that still can increase between (mixing) shaft and the mechanical seal of range of vibration have shortened mechanical seal's life simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modified agitator mechanical seal to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a modified agitator mechanical seal, includes fixed lid, sealing ring, butt piece, agitator box and solid fixed ring, logical groove has been seted up on the agitator box, it has a solid fixed cylinder to lead to the inslot cooperation, the one end of solid fixed cylinder is constructed and is had a fixed lid, gu fixed lid is located the outside of agitator box and is provided with the first bolt of multiunit, first bolt screw thread passes the solid fixed lid and penetrates in the agitator box, gu the solid fixed lid is on the agitator box, and the solid fixed cylinder has seted up the multiunit ring channel with the one side of leading to the groove contact on the agitator box, the gomphosis has first rubber ring in the ring channel, the logical groove wall of the outer fringe face butt agitator box of first rubber ring, the logical inslot of agitator box still is provided with the (mixing) shaft, the (mixing) shaft is located solid fixed cylinder, just sealing ring, butt piece and solid fixed.

Preferably, the sealing ring comprises a butt-joint ring and an embedding ring, the embedding ring is arranged at one end of the butt-joint ring, a sliding groove is formed in one end, away from the embedding ring, of the butt-joint ring, a through hole with the same diameter is formed in the butt-joint ring and the embedding ring, a stirring shaft passes through the through hole, the embedding ring is embedded into a corresponding through groove formed in the fixed cover, a second rubber ring is arranged between the butt-joint ring and the fixed cover, and the second rubber ring is sleeved on the embedding ring.

Preferably, the bilateral symmetry of solid fixed ring and (mixing) shaft junction is provided with multiunit installation piece, and the installation piece welds on solid fixed ring, is provided with the second bolt on the installation piece, the second bolt screw pass the installation piece and with the (mixing) shaft on correspond the screw hole cooperation of seting up, and solid fixed ring keeps away from one side of (mixing) shaft and has seted up multiunit groove, the tank bottom is fixed with first spring, first spring coupling has the butt post, the one end of butt post stretches out solid fixed ring and installs the ball, the lateral wall butt in ball and the solid fixed cylinder.

Preferably, solid fixed ring has seted up ball type groove towards one side of sealing ring, and inslot movable mounting has the butt king post, and the butt king post is kept away from solid fixed ring's one end and is seted up the deep trouth that supplies the installation of butt king post, and the deep trouth bottom is fixed with the second spring, and second spring coupling is in the one end of butt king post, and the one end that the second spring was kept away from to the butt king post stretches out the butt king post and with butt piece swing joint.

Preferably, the butt piece welded fastening is on the (mixing) shaft, and the butt piece has seted up multiunit ball type groove towards the quantity that solid fixed ring's one side corresponds the butt deputy post, and the butt deputy post is kept away from solid fixed ring's one end and is constructed the ball-type lug and activity and be fixed in the inslot that sets up on the butt piece, and the butt piece is kept away from one side of butt deputy post and is constructed annular arris and with sealing ring swing joint.

The utility model discloses a technological effect and advantage: this modified agitator mechanical seal benefits from fixed lid, a fixed cylinder, the setting of first rubber ring, can install this mechanical seal in a fixed cylinder, the direct dismantlement maintenance of being convenient for, and benefit from the butt principal post, the vice post of butt, the cooperation of second spring, make the butt piece also can extrude the sealing ring all the time when the (mixing) shaft rotates, make the good sealed effect of keeping between sealing ring and the fixed lid, benefit from the butt post simultaneously, the cooperation of first spring and ball, can weaken the vibration range of (mixing) shaft. This modified agitator mechanical seal, it is rational in infrastructure, can directly dismantle, the maintenance of being convenient for, and can keep good sealed effect when the (mixing) shaft rotates and produces the vibration, can weaken the vibration range of (mixing) shaft simultaneously, prolonged mechanical seal's life.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the sealing ring of the present invention;

fig. 3 is an enlarged view of a structure in fig. 1.

In the figure: the device comprises a fixed cover 1, a first bolt 101, a fixed cylinder 102, a first rubber ring 103, a sealing ring 2, a butting ring 201, a nesting ring 202, a sliding groove 203, a second rubber ring 3, a butting block 4, a stirring shaft 5, a stirrer box 6, a fixed ring 7, a butting column 701, a first spring 702, a ball 703, an installation block 704, a second bolt 705, a main column 8, an auxiliary column 801 and a second spring 802.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides an improved mechanical seal of a stirrer as shown in figures 1-3, which comprises a fixed cover 1, a sealing ring 2, a butt block 4, a stirrer box body 6 and a fixed ring 7, wherein the stirrer box body 6 is provided with a through groove, a fixed cylinder 102 is matched in the through groove, one end of the fixed cylinder 102 is constructed with the fixed cover 1, the fixed cover 1 is positioned outside the stirrer box body 6 and is provided with a plurality of groups of first bolts 101, the threads of the first bolts 101 pass through the fixed cover 1 and penetrate into the stirrer box body 6, the fixed cover 1 is fastened on the stirrer box body 6, one side of the fixed cylinder 102, which is contacted with the through groove on the stirrer box body 6, is provided with a plurality of groups of annular grooves, a first rubber ring 103 is embedded in the annular grooves, the outer edge surface of the first rubber ring 103 is butted with the wall of the through groove of the stirrer box body 6, a stirring shaft 5 is also arranged in the through groove of the stirrer box body 6, and the sealing ring 2, the abutting block 4 and the fixing ring 7 are all sequentially sleeved on the stirring shaft 5, and when the stirring device is used, the gaps between the fixing cylinder 102 and the stirrer box body 6 can be sealed by the multiple groups of first rubber rings 103.

Specifically, the sealing ring 2 includes a butt ring 201 and a tabling ring 202, the tabling ring 202 is constructed at one end of the butt ring 201, a sliding groove 203 is opened at one end of the butt ring 201 away from the tabling ring 202, a through hole with the same diameter is opened on the butt ring 201 and the tabling ring 202, the through hole is used for the stirring shaft 5 to pass through, the tabling ring 202 is embedded in the through groove correspondingly opened on the fixing cover 1, a second rubber ring 3 is arranged between the butt ring 201 and the fixing cover 1, and the second rubber ring 3 is sleeved on the tabling ring 202.

Specifically, a plurality of groups of mounting blocks 704 are symmetrically arranged on two sides of the joint of the fixing ring 7 and the stirring shaft 5, the mounting blocks 704 are welded on the fixing ring 7, a second bolt 705 is arranged on the mounting blocks 704, the second bolt 705 penetrates through the mounting blocks 704 in a threaded manner and is matched with a threaded hole correspondingly formed in the stirring shaft 5, and one side of the fixing ring 7, which is far away from the stirring shaft 5, is provided with a plurality of groups of grooves, the bottom of the groove is fixed with a first spring 702, the first spring 702 is connected with a butting column 701, one end of the butting column 701 extends out of the fixing ring 7 and is provided with a ball 703, the ball 703 is butted with the side wall in the fixing cylinder 102, the first spring 702 is in a compressed state, ensuring that the abutment column 701 always abuts against the inner wall of the fixed cylinder 102, carry out buffering damping to (mixing) shaft 5, and the setting of ball 703 has avoided the direct contact between butt post 701 and the fixed cylinder 102, has reduced frictional force for solid fixed ring 7 can follow (mixing) shaft 5 and rotate.

Specifically, solid fixed ring 7 has seted up the ball type groove towards one side of sealing ring 2, inslot movable mounting has butt king post 8, the deep trouth that supplies the installation of butt king post 801 is seted up to the one end that butt king post 8 kept away from solid fixed ring 7, the deep trouth bottom is fixed with second spring 802, second spring 802 is connected in the one end of butt king post 801, the one end that second spring 802 was kept away from to butt king post 801 stretches out butt king post 8 and with butt piece 4 swing joint, during the concrete implementation, butt king post 801 all comes the activity with the cooperation of butt king post 8 through ball type groove with the ball-type lug to be fixed, and the connection structure that butt king post 8 and butt king post 801 constitute is for being by solid fixed ring 7 towards the direction slope of butt piece 4.

Specifically, butt 4 welded fastening is on (mixing) shaft 5, butt 4 has seted up many groups ball type groove towards the quantity that solid fixed ring 7's one side of fixed ring corresponds butt auxiliary column 801, butt auxiliary column 801 keeps away from the one end of solid fixed ring 7 and is constructed the ball-type lug and the activity is fixed in the inslot of seting up on butt 4, and butt 4 keeps away from one side of butt auxiliary column 801 and is constructed annular arris and with sealing ring 2 swing joint, during the concrete implementation, the sliding tray 203 cooperation of seting up on annular arris on the butt 4 and the butt ring 201 for butt 4 can follow (mixing) shaft 5 and rotate, and can smear lubricating oil on the face of butt 4 and the butt ring 201 butt and reduce the friction.

The working principle of the improved mechanical seal of the stirrer is that the fixed cover 1 and the fixed cylinder 102 can be tightly installed on the stirrer box body 6 through the first bolt 101, and the joint of the fixed cylinder 102 and the stirrer box body 6 is sealed in multiple layers by arranging the plurality of groups of first rubber rings 103, so that the fixed cylinder 102 can be detached through the first bolt 101 directly during detachment and maintenance, the fixed cylinder 102 is fixed in the stirrer box body 6 in a sealing manner, due to the abutting of the abutting auxiliary column 801, the abutting block 4 always pushes the embedded ring 202 into the fixed cover 1 and enables the abutting ring 201 to be tightly attached to the side wall of the fixed cover 1, meanwhile, the joint of the fixed cover 1 and the sealing ring 2 is sealed under the arrangement of the second rubber ring 3, and 803 at the joint of the abutting auxiliary column 801 and the second spring 802 is in a compression state, so that the stirring shaft 5 vibrates along with the stirring shaft 5 no matter how the fixed ring 7 vibrates along with the stirring shaft 5 when rotating, the auxiliary abutting column 801 can always push the abutting block 4 towards the sealing ring 2, so that a good sealing effect is kept, and meanwhile, the vibration amplitude of the stirring shaft 5 can be weakened while the fixing ring 7 and the inner wall of the fixing barrel 102 rotate along with the stirring shaft 5 through the cooperation of the abutting column 701, the first spring 702 and the ball 703. This modified agitator mechanical seal, it is rational in infrastructure, can directly dismantle, the maintenance of being convenient for, and can keep good sealed effect when (mixing) shaft 5 rotates the production vibration, can weaken (mixing) shaft 5's vibration range simultaneously, prolonged mechanical seal's life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a modified agitator mechanical seal, includes fixed lid (1), sealing ring (2), butt piece (4), agitator box (6) and solid fixed ring (7), its characterized in that: a through groove is formed in the stirrer box body (6), a fixing cylinder (102) is matched in the through groove, a fixing cover (1) is constructed at one end of the fixing cylinder (102), the fixing cover (1) is positioned outside the stirrer box body (6) and is provided with a plurality of groups of first bolts (101), the first bolts (101) penetrate through the fixing cover (1) in a threaded manner and penetrate into the stirrer box body (6) to fasten the fixing cover (1) on the stirrer box body (6), and one side of the fixed cylinder (102) contacting with the through groove on the stirrer box body (6) is provided with a plurality of groups of annular grooves, a first rubber ring (103) is embedded in the annular grooves, the outer edge surface of the first rubber ring (103) is abutted against the through groove wall of the stirrer box body (6), a stirring shaft (5) is also arranged in the through groove of the stirrer box body (6), the stirring shaft (5) is positioned in the fixed cylinder (102), and the sealing ring (2), the abutting block (4) and the fixing ring (7) are sequentially sleeved on the stirring shaft (5).

2. An improved mechanical seal for an agitator as defined in claim 1, wherein: sealing ring (2) including butt ring (201) and gomphosis ring (202), the one end structure of butt ring (201) has gomphosis ring (202), and the one end that gomphosis ring (202) were kept away from to butt ring (201) has seted up sliding tray (203), just set up the through-hole that the diameter equals on butt ring (201) and gomphosis ring (202), the through-hole supplies (mixing) shaft (5) to pass, and the inslot that corresponds the seting up is gone up in gomphosis ring (202) embedding fixed cover (1), is provided with second rubber ring (3) between butt ring (201) and fixed cover (1), and second rubber ring (3) are overlapped in gomphosis ring (202).

3. An improved mechanical seal for an agitator as defined in claim 1, wherein: the bilateral symmetry of solid fixed ring (7) and (mixing) shaft (5) junction is provided with multiunit installation piece (704), installation piece (704) welds on solid fixed ring (7), be provided with second bolt (705) on installation piece (704), second bolt (705) screw pass installation piece (704) and with (mixing) shaft (5) on correspond the screw hole cooperation of seting up, and solid fixed ring (7) keep away from (mixing) shaft (5) one side and seted up multiunit groove, the tank bottom is fixed with first spring (702), first spring (702) are connected with butt post (701), the one end of butt post (701) stretches out solid fixed ring (7) and installs ball (703), ball (703) and the lateral wall butt in solid fixed cylinder (102).

4. An improved mechanical seal for an agitator as defined in claim 1, wherein: fixed ring (7) have seted up ball type groove towards one side of sealing ring (2), inslot movable mounting has butt king post (8), the deep trouth that supplies the installation of butt king post (801) is seted up to the one end that fixed ring (7) was kept away from in butt king post (8), deep trouth bottom is fixed with second spring (802), second spring (802) are connected in the one end of butt king post (801), the one end that second spring (802) were kept away from in butt king post (801) stretches out butt king post (8) and with butt piece (4) swing joint.

5. An improved mechanical seal for an agitator as defined in claim 4, wherein: butt joint piece (4) welded fastening is on (mixing) shaft (5), and the one side of solid fixed ring (7) of butt joint piece (4) orientation corresponds the quantity of butt auxiliary column (801) and has seted up many groups of ball type grooves, and the one end that solid fixed ring (7) were kept away from in butt auxiliary column (801) is constructed with the ball-type lug and the activity is fixed in the inslot of seting up on butt joint piece (4), and one side that butt auxiliary column (801) were kept away from in butt joint piece (4) is constructed with annular arris and with sealing ring (2) swing joint.