CN215617838U

CN215617838U - Device for disassembling and assembling mechanical seal

Info

Publication number: CN215617838U
Application number: CN202121636467.7U
Authority: CN
Inventors: 鲜伟
Original assignee: Chengdu Shunjie Industry Co ltd
Current assignee: Chengdu Shunjie Industry Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-25
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses a device for mechanical seal disassembly and assembly, which comprises a rectangular base, and a first fixing ring and a second fixing ring which are symmetrically arranged at two ends along the axial direction of the rectangular base, wherein the first fixing ring comprises a first arc-shaped plate and a second arc-shaped plate which can be spliced into a circular ring, limiting through holes are symmetrically arranged at two ends of the arc direction of the first arc-shaped plate and the second arc-shaped plate, a positioning screw rod penetrating through the limiting through holes is connected to the limiting through holes in a threaded manner, one side of the second fixing ring in the annular direction is fixedly connected with the base, one end of the second fixing ring, which is far away from the first fixing ring, is connected to a fixing plate, which is vertical to the second fixing ring, an adjusting screw rod penetrating through the fixing plate is connected to the center of the fixing plate in a threaded manner, a fixing beam is coaxially sleeved on the adjusting screw rod, L-shaped hook plates are symmetrically arranged at two ends of the fixing beam, the mechanical seal is pulled out through a screw rod nut pair, rotating shafts with different sizes can be adapted through the positioning screw rod, the use flexibility and the use safety can be improved.

Description

Device for disassembling and assembling mechanical seal

Technical Field

The utility model relates to the field of equipment maintenance tools, in particular to a device for disassembling and assembling mechanical seal.

Background

The mechanical seal is a device for solving the problem of sealing between a rotating shaft and a machine body, at least a pair of fluid pressure vertical to the axial end face of the rotating shaft and the combined action of compensation elasticity keep fit and relatively slide under the cooperation of auxiliary seal, so as to form a device for preventing fluid from leaking, which is commonly used for sealing the shaft ends of rotating fluid machines such as pumps, compressors, reaction kettles and the like, therefore, the mechanical seal is a universal shaft seal device in the chemical industry, the general mechanical seal is composed of a shaft sleeve, a movable ring and a static ring, the shaft sleeve is generally rotatably connected with the rotating shaft on the rotating shaft, the movable ring and the static ring are connected with the rotating shaft through the shaft sleeve, a certain compression deformation is generated on the radial outer circular surface of the shaft sleeve through the movable ring and the shaft sleeve to ensure that the movable ring and the static ring are fit to realize sealing, and due to the existence of compression amount, a certain friction force exists in the process of disassembly and assembly, moreover, the existing mechanical seal dismounting device is a special tool, can only be used for equipment with a specified model, and can seriously increase the maintenance cost due to the fact that the special dismounting tool needs to be customized when different sizes or equipment is remodeled.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the utility model provides a device for disassembling and assembling a mechanical seal, which has the advantages of simple structure, convenience in assembly and disassembly and no damage to a rotating shaft.

The technical scheme of the utility model is as follows:

a device for mechanical seal disassembly and assembly comprises a rectangular base, and a first fixing ring and a second fixing ring which are symmetrically arranged at two ends along the axial direction of the length direction of the rectangular base, wherein the axial direction of the first fixing ring and the axial direction of the second fixing ring are parallel to the length direction of the base, the first fixing ring comprises a first arc-shaped plate and a second arc-shaped plate which can be spliced into a circular ring, one end of the arc-shaped direction of the first arc-shaped plate is hinged with one end of the arc-shaped direction of the second arc-shaped plate, the center of the arc-shaped direction of the first arc-shaped plate is fixedly connected with the base, first limiting through holes are symmetrically arranged at two ends of the arc-shaped direction of the first arc-shaped plate, second limiting through holes are symmetrically arranged at two ends of the arc-shaped direction of the second arc-shaped plate, a first positioning screw rod penetrating through the first limiting through holes is in threaded connection at the first limiting through holes, a second positioning screw rod penetrating through the second limiting through holes is in threaded connection at the second limiting through holes, the utility model discloses a solid fixed ring type solid fixed plate type solid fixed ring type solid fixed plate type solid fixed ring type solid fixed plate is fixed plate type solid.

And rubber blocks are arranged at the end parts of the first positioning screw rod and the second positioning screw rod.

The utility model discloses a double-end adjusting device, including fixed beam, double-end adjusting screw, sliding tray, L type that the symmetry set up colludes board and double-end adjusting screw's both ends difference threaded connection, the sliding tray both ends are provided with spacing card, double-end adjusting screw runs through the sliding tray, double-end screw both ends symmetry coaxial coupling hand wheel.

The L-shaped hook plate comprises a connecting rod and an operating rod perpendicular to the connecting rod, a rubber layer is coated on the outer surface of the operating rod, one end of the connecting rod is connected with a double-end adjusting screw on the fixed beam, and the other end of the connecting rod is connected with the operating rod.

The utility model has the beneficial effects that:

1. the bottom plate is sequentially provided with an openable first fixing ring and a closed second fixing ring along the length direction, one end of the bottom plate can be fixed through the first fixing ring according to the installation position of a rotating shaft of the mechanical seal to be disassembled, the other end of the bottom plate can be fixed through the second fixing ring, the second fixing ring is propped against the adjusting screw, the adjusting screw is rotated to ensure that a fixing beam and an L-shaped hook plate sleeved on the adjusting screw slide on the adjusting screw, the mechanical seal is disassembled through the L-shaped hook plate, the assembling and disassembling difficulty can be effectively reduced, the hook head position of the L-shaped hook plate can be flexibly adjusted according to the mechanical seals with different sizes, the use range can be improved, and the use flexibility can be increased;

2. the rubber blocks are arranged at the end parts of the first positioning screw rod and the second positioning screw rod, so that the first positioning screw rod and the second positioning screw rod can be ensured not to wear the surface of the rotating shaft, and the use safety is improved;

3. the fixed beam and the L-shaped hook plate form a screw rod nut transmission pair through a double-end screw rod in the sliding groove to move relatively, the distance between the L-shaped hook plates can be flexibly adjusted through a hand wheel, the L-shaped hook plates can be flexibly adjusted according to the outer diameter of the end face of the mechanical seal to be disassembled, and the adjustment flexibility, the disassembly stability and the disassembly reliability can be improved;

4. the rubber layer is coated at the operating rod at one end of the L-shaped hook plate, so that the stability of the disassembly process can be improved, and the sliding is prevented.

Drawings

FIG. 1 is a front view of an apparatus for mechanical seal disassembly and assembly according to an embodiment of the present invention;

FIG. 2 is a top view of an apparatus for mechanical seal disassembly and assembly according to an embodiment of the present invention;

FIG. 3 is a view of the apparatus for mechanical seal disassembly and assembly according to an embodiment of the present invention;

fig. 4 is a view in the direction B of an apparatus for mechanical seal disassembly and assembly according to an embodiment of the present invention.

Description of reference numerals:

1 is the base, 2 is first spacing through-hole, 3 is the second spacing through-hole, 4 is the rotation axis, 11 is first solid fixed ring, 12 is the second solid fixed ring, 13 is the fixed plate, 14 is adjusting screw, 15 is the fixed beam, 16 is the L type colludes the board, 21 is first positioning screw, 31 is the second positioning screw, 111 is first arc, 112 is the second arc, 121 is the fixed stop, 151 is the sliding tray, 152 is double-end adjusting screw, 153 is spacing card, 154 is the hand wheel, 161 is the connecting rod, 162 is the action bars.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

Example (b):

as shown in figures 1-4, a device for mechanical seal disassembly and assembly comprises a rectangular base 1, and a first fixing ring 11 and a second fixing ring 12 symmetrically arranged along two ends of the length direction of the rectangular base, wherein the axis direction of the first fixing ring 11 and the second fixing ring 12 is parallel to the length direction of the base 1, the first fixing ring 11 comprises a first arc-shaped plate 111 and a second arc-shaped plate 112 which can be spliced into a circular ring, one end of the arc direction of the first arc-shaped plate 11 is hinged with one end of the arc direction of the second arc-shaped plate 112, the center of the arc direction of the first arc-shaped plate 111 is fixedly connected with the base 1, two ends of the arc direction of the first arc-shaped plate 111 are symmetrically provided with first limiting through holes 2, two ends of the arc direction of the second arc-shaped plate 112 are symmetrically provided with second limiting through holes 3, a first positioning screw 21 penetrating through the first limiting through holes 2 is in threaded connection with the first limiting through holes 2, a second positioning screw 31 penetrating through the second limiting through holes 3 is in threaded connection with the second limiting through holes 3, the solid fixed ring of second 12 annular direction one side and base 1 fixed connection, the solid fixed ring of second 12 openings department is provided with fixed stop 121, the solid fixed ring of second 12 one end of keeping away from first solid fixed ring 11 is connected with on base 1 with the solid fixed ring of second 12 vertically fixed plate 13, fixed plate 13 center department threaded connection has adjusting screw 14 that runs through fixed plate 13, coaxial cover is equipped with fixed beam 15 on adjusting screw 14, fixed beam 15 both ends symmetry is provided with L type and colludes board 16.

The working principle of the technical scheme is as follows:

when the mechanical seal on the rotating shaft needs to be disassembled, the first fixing ring 11 on the bottom plate 1 is opened, the bottom plate 1 and the first arc-shaped plate 111 of the first fixing ring 11 are pushed into the lower part of the rotating shaft 4, the axis direction of the rotating shaft 4 is ensured to be parallel to the length direction of the bottom plate, the second fixing ring 12 is abutted against one end of the rotating shaft 4, the second arc-shaped plate 112 of the first fixing ring 11 and the first arc-shaped plate 111 are closed into a circular shape, the first positioning screw 21 and the second positioning screw 31 on the first arc-shaped plate and the second arc-shaped plate 112 are rotated and abutted against the rotating shaft 4, the axis of the rotating shaft 4 and the axis of the first fixing ring 11 are ensured to be on the same straight line, the adjusting screw 14 is fixed through the fixing plate 13 at the back part of the second fixing ring 12, the adjusting screw 14 penetrates through the fixing plate and abuts against the fixing baffle 121 of the second fixing ring 12, the L-shaped hook plate 16 is hooked with the outer end face of the mechanical seal, through rotatory adjusting screw 14, drive fixed beam 15 and slide on adjusting screw 14, and then drive the L type and collude 16 pulling mechanical seal of board and break away from rotation axis 4, can effectual improvement dismouting efficiency, reduce the operation degree of difficulty, can collude the position of board 16 and the fixed size of first solid fixed ring 11 according to the rotation axis 4 of unidimensional and the nimble regulation L type of mechanical seal, can improve the flexibility and the security of using.

The rubber blocks are arranged at the end parts of the first positioning screw rod 21 and the second positioning screw rod 31, so that the first positioning screw rod and the second positioning screw rod can be prevented from wearing the surface of the rotating shaft, and the use safety is improved.

Fixed beam 15 is provided with sliding tray 151 along its length direction, be provided with double-end adjusting screw 152 along fixed beam 15 length direction in the sliding tray 151, the L type that the symmetry set up colludes board 16 and double-end adjusting screw 152's both ends respectively threaded connection, sliding tray 151 both ends are provided with spacing card 153, double-end adjusting screw 152 runs through sliding tray 151, double-end adjusting screw 152 both ends symmetry coaxial coupling hand wheel 154, fixed beam and L type collude the board and form the vice relative movement that carries out of screw-nut transmission through the double-end screw in the sliding tray, can collude the distance between the board through the nimble regulation L type of hand wheel, can be according to waiting nimble regulation of the terminal surface external diameter of the mechanical seal who dismantles, can increase the flexibility of regulation and the stability and the reliability of dismouting.

L type colludes board 16 and includes connecting rod 161 and with connecting rod 161 vertically action bars 162, the outer surface cladding of action bars 162 has the rubber layer, and connecting rod 161 one end links to each other with double-end adjusting screw 152 on the fixed beam 15, and the other end links to each other with action bars 162, can improve the stability of dismantling the process, prevents to skid.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The device for mechanical seal disassembly and assembly is characterized by comprising a rectangular base (1), and a first fixing ring (11) and a second fixing ring (12) which are symmetrically arranged along two ends of the rectangular base, wherein the axis directions of the first fixing ring (11) and the second fixing ring (12) are parallel to the length direction of the base (1), the first fixing ring (11) comprises a first arc-shaped plate (111) and a second arc-shaped plate (112) which can be spliced into a circular ring, one end of the arc direction of the first arc-shaped plate (111) is hinged with one end of the arc direction of the second arc-shaped plate (112), the center of the arc direction of the first arc-shaped plate (111) is fixedly connected with the base (1), two ends of the arc direction of the first arc-shaped plate (111) are symmetrically provided with first limiting through holes (2), two ends of the arc direction of the second arc-shaped plate (112) are symmetrically provided with second limiting through holes (3), a first positioning screw rod (21) penetrating through the first limiting through hole (2) is connected with the first limiting through hole (2) in a threaded manner, a second positioning screw rod (31) penetrating through the second limiting through hole (3) is connected with the second limiting through hole (3) in a threaded manner, one side of the second fixing ring (12) in the annular direction is fixedly connected with the base (1), a fixed baffle (121) is arranged at the opening of the second fixed ring (12), a fixed plate (13) which is vertical to the second fixed ring (12) is connected on the base (1) at one end of the second fixed ring (12) far away from the first fixed ring (11), the center of the fixed plate (13) is in threaded connection with an adjusting screw (14) penetrating through the fixed plate (13), the adjusting screw (14) is coaxially sleeved with a fixed beam (15), and L-shaped hook plates (16) are symmetrically arranged at two ends of the fixed beam (15).

2. The device for mechanical seal disassembly and assembly of claim 1, wherein the ends of the first positioning screw (21) and the second positioning screw (31) are provided with rubber blocks.

3. The device for mechanical seal disassembly and assembly of claim 1, wherein the fixed beam (15) is provided with a sliding groove (151) along the length direction thereof, the sliding groove (151) is internally provided with a double-head adjusting screw (152) along the length direction of the fixed beam (15), the symmetrically arranged L-shaped hook plate (16) is in threaded connection with two ends of the double-head adjusting screw (152) respectively, two ends of the sliding groove (151) are provided with limit clamps (153), the double-head adjusting screw (152) penetrates through the sliding groove (151), and two ends of the double-head adjusting screw (152) are symmetrically and coaxially connected with a hand wheel (154).

4. The device for mechanical seal disassembly and assembly as claimed in claim 3, wherein the L-shaped hook plate (16) comprises a connecting rod (161) and an operating rod (162) perpendicular to the connecting rod (161), the outer surface of the operating rod (162) is coated with a rubber layer, one end of the connecting rod (161) is connected with the double-end adjusting screw (152) on the fixed beam (15), and the other end of the connecting rod is connected with the operating rod (162).