CN218145299U - Special tool for lifting mechanical seal of kettle and tank - Google Patents

Abstract

The utility model discloses a special tool for lifting mechanical seals of kettles and tanks, which comprises a lifting arm, wherein one end of the lifting arm is fixed with a lifting lug, the other end of the lifting arm is fixed with two lug plates arranged along the axis direction of the lifting arm, and a pin shaft is arranged between the two lug plates in a penetrating way; two supporting plates which are respectively arranged at the two sides of the lug plate are arranged around the pin shaft in a rotating way; the hoisting arm is sleeved with a baffle which is arranged in a sliding mode, and a plurality of clamping blocks are fixed on the surface, facing the ear plate, of the baffle along the circumferential direction. The advantages are that: the ear plate end of the hoisting arm penetrates through the mechanical seal, and the two support plates swing around the pin shaft and lean against the hoisting arm at the same time; after the supporting plates of the hoisting arm penetrate out of the mechanical seal, the two supporting plates are unfolded and support the bottom end of the mechanical seal, and the baffle is pressed on the mechanical seal through the wedge-shaped block; rethread lifting device passes through the hoist and mount mechanical seal that the lug can be convenient, from this, through the utility model discloses hoist and mount process labour saving and time saving does not need the operation personnel to assist among the hoist and mount process, avoids the potential safety hazard.

Description

Special tool for lifting mechanical seal of kettle and tank

The technical field is as follows:

the utility model relates to a mechanical seal dismouting overhauls technical field, in particular to cauldron, groove class mechanical seal hoist and mount specialized tool.

Background art:

the mechanical seal used in industry is a shaft seal device of rotating machinery, such as the mechanical seal used on a reaction kettle and a centrifugal groove; in the process of replacing the mechanical seal of the centrifugal groove, the mechanical seal needs to be lifted out and lifted in, the common lifting method is that a steel pipe is supported at the bottom of the mechanical seal, and then a steel wire rope passes through the middle of the steel pipe to carry out the lifting operation of the mechanical seal, and in the lifting process, two workers are needed to assist in righting the mechanical seal, which wastes time and labor; in addition, the hoisting method is not easy to find the gravity center position of the mechanical seal, so that the phenomenon of gravity center offset of the mechanical seal occurs in the hoisting process, the hoisting difficulty is increased, the overhauling efficiency is low, and meanwhile, hidden dangers are hidden for the safety of operators; in addition, when the mechanical seal is installed, the mechanical seal is inclined, so that the contact and cutting of the mechanical seal O-shaped ring and the edge of the flange at the bottom of the groove are easily caused, the service cycle of the mechanical seal is shortened, and after the O-shaped ring is damaged, the PVC slurry in the centrifugal groove leaks into the mechanical seal cavity and then is subjected to cohesion, so that the mechanical seal is difficult to disassemble when the mechanical seal is replaced next time.

The utility model has the following contents:

an object of the utility model is to provide a labour saving and time saving is favorable to improving cauldron, groove class mechanical seal hoist and mount specialized tool of maintenance efficiency.

The utility model discloses implement by following technical scheme: the special tool for lifting the mechanical seal of the kettle and the tank comprises a lifting arm, wherein a lifting lug is fixed at one end of the lifting arm, two lug plates arranged along the axial direction of the lifting arm are fixed at the other end of the lifting arm, and the plate surfaces of the two lug plates are arranged oppositely; a pin shaft penetrates between the two lug plates, and the pin shaft is perpendicular to and intersected with the axis of the hoisting arm; two supporting plates which are respectively arranged on two sides of the lug plate are arranged around the pin shaft in a rotating mode, and when the supporting plates rotate to be perpendicular to the axis of the hoisting arm, opposite end faces of the two supporting plates are attached; a baffle which is arranged in a sliding manner is sleeved on the hoisting arm, and a plurality of clamping blocks are fixed on the surface of the baffle, facing the ear plate, along the circumferential direction; the hoisting arm is provided with a wedge-shaped hole, a wedge-shaped block is movably arranged in the wedge-shaped hole in a penetrating mode, and the other side plate surface of the baffle is in movable contact with the wedge-shaped block.

Furthermore, the hoisting arm is a hollow pipe.

Furthermore, the lifting lug is a steel plate with a U-shaped structure, the opening of the lifting lug faces the end part of the lifting arm, the two sides of the lifting lug are fixedly welded with the outer wall of the lifting arm, and the axis of the lifting arm is arranged on the plane where the lifting lug is located.

Furthermore, two openings communicated with the central hole of the baffle are symmetrically formed in the baffle, and the two openings correspond to the two sides of the lifting lug.

Furthermore, the supporting plate is connected with the pin shaft through a connecting arm, one end of the connecting arm is sleeved on the pin shaft, and the other end of the connecting arm is fixed with the plate surface of the supporting plate.

Furthermore, the other ends of the two supporting plates are fixed with limiting blocks which are bent upwards.

Furthermore, the end of the wedge block penetrating through the wedge hole is provided with a limiting bolt in a penetrating mode.

The utility model has the advantages that: when the mechanical seal is disassembled and hoisted through the utility model, the ear plate end of the hoisting arm penetrates into the shaft sleeve of the mechanical seal, the two supporting plates swing around the pin shaft and lean against the hoisting arm at the same time, so that the hoisting arm can conveniently penetrate into one end of the mechanical seal and penetrate out from the other end; when the supporting plates of the hoisting arm penetrate out of the mechanical seal, the two supporting plates are unfolded and support the bottom end of the mechanical seal, and are clamped on the outer wall of a shaft sleeve of the mechanical seal through a limiting block; the baffle is slid along the hoisting arm until the baffle is attached to the top surface of the mechanical seal, and then the baffle can be tightly pressed on the mechanical seal through the wedge-shaped block; from this, through the utility model discloses hoist and mount process labour saving and time saving does not need the operation personnel to assist among the hoist and mount process, avoids the potential safety hazard, when installing mechanical seal moreover, through the utility model discloses hoist and mount can effectively guarantee that mechanical seal is in vertical state, avoids mechanical seal's "O" type circle to bump at the tank bottom flange edge of centrifugation groove and damaged.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a view taken along direction a of fig. 1.

Fig. 3 is a bottom view of the baffle plate fixed with the fixture block of the present invention.

Fig. 4 is a first usage state diagram of the present invention.

Fig. 5 is a second usage state diagram of the present invention.

The parts in the drawings are numbered as follows: the lifting device comprises a lifting arm 1, a wedge-shaped hole 1.1, a lifting lug 2, an ear plate 3, a pin shaft 4, a supporting plate 5, a baffle 6, a notch 6.1, a fixture block 7, a wedge-shaped block 8, a limiting block 9, a limiting bolt 10, a mechanical seal 11, a shaft sleeve 11.1 and a connecting arm 12.

The specific implementation mode is as follows:

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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.

As shown in fig. 1 to 5, the embodiment provides a special tool for lifting a mechanical seal of a kettle or a tank; the device comprises a hoisting arm 1, wherein the hoisting arm 1 is a hollow pipe; hoist and mount arm 1's one end is fixed with lug 2, and lug 2 is the steel sheet of U shape structure, and lug 2's opening towards the tip of hoist and mount arm 1, and lug 2's both sides and hoist and mount arm 1's outer wall welded fastening, on the plane at lug 2 place was arranged in to hoist and mount arm 1's axis, on the central line of hoist and mount arm 1 can be arranged in to the assurance hoist and mount point, it is right to be convenient for utilize lifting device through lug 2 the utility model discloses hoist and mount the operation.

The other end of the hoisting arm 1 is fixed with two lug plates 3 arranged along the axial direction of the hoisting arm 1, and the surfaces of the two lug plates 3 are arranged oppositely; a pin shaft 4 penetrates between the two lug plates 3, and the pin shaft 4 is vertical to and intersected with the axis of the hoisting arm 1; two supporting plates 5 respectively arranged at two sides of the ear plate 3 are rotatably arranged around the pin shaft 4, the supporting plates 5 are connected with the pin shaft 4 through connecting arms 12, one end of each connecting arm 12 is sleeved on the pin shaft 4, and the other end of each connecting arm 12 is fixed with the plate surface of the corresponding supporting plate 5; when the end of the ear plate 3 of the hoisting arm 1 penetrates into the shaft sleeve 11.1 of the mechanical seal 11, the two supporting plates 5 swing around the pin shaft 4 and lean against the hoisting arm 1 at the same time, so that the hoisting arm 1 can conveniently penetrate from the top end of the mechanical seal 11 and penetrate out from the bottom end.

When the support plates 5 rotate to be vertical to the axis of the hoisting arm 1, the opposite end faces of the two support plates 5 are attached, the two support plates 5 are symmetrical relative to the pin shaft 4, and the other ends of the two support plates 5 are fixed with limit blocks 9 bent upwards; when two backup pads 5 expand for the horizontality, be convenient for support and hold mechanical seal 11's bottom, through stopper 9 joint at mechanical seal 11's axle sleeve 11.1 outer wall, further guarantee hoist and mount in-process mechanical seal 11's stability.

The hoisting arm 1 is sleeved with a baffle 6 which is arranged in a sliding manner, in the embodiment, the baffle 6 is a disc, the middle part of the baffle 6 is provided with a central hole, the baffle 6 is sleeved on the hoisting arm 1 through the central hole, and four clamping blocks 7 which are uniformly distributed are fixed on the surface of the baffle 6 facing the lug plate 3 along the circumferential direction; when the two supporting plates 5 penetrate through the mechanical seal 11 and expand to support the bottom end of the mechanical seal 11, the baffle 6 is slid along the hoisting arm 1 until the clamping block 7 penetrates into and is clamped in a shaft sleeve 11.1 of the mechanical seal 11, so that the hoisting arm 1 and the mechanical seal 11 are ensured to be coaxial, and at the moment, the baffle 6 is attached to the top surface of the mechanical seal 11; therefore, the utility model realizes the clamping of the mechanical seal 11 through the support plate 5 and the baffle 6; seted up wedge 1.1 on the hoist and mount arm 1, wear to be equipped with wedge 8 at wedge 1.1 internalization, the opposite side face and the 8 movable contact of wedge of baffle 6, can compress tightly baffle 6 on mechanical seal 11 through wedge 8, at this moment, hoist and mount arm 1 keeps coaxial state with mechanical seal 11 to press from both sides mechanical seal 11 through baffle 6 and backup pad 5 tightly, by this, through the utility model discloses hoist and mount process labour saving and time saving, do not need the operation personnel to assist in the hoist and mount process, avoid the potential safety hazard, and when installing mechanical seal 11, through the utility model discloses hoist and mount can effectively guarantee that mechanical seal 11 is in vertical state, avoid "O" type circle of mechanical seal 11 to bump at the tank bottom flange edge in centrifugal groove and damaged.

The end part of the wedge block 8 penetrating through the wedge hole 1.1 is provided with a limiting bolt 10 in a penetrating way, and the wedge block 8 can be effectively prevented from being separated from the wedge hole 1.1 through the limiting bolt 10 in the process of hoisting the mechanical seal 11; two notches 6.1 which are communicated with the central hole of the baffle 6 are symmetrically arranged on the baffle 6, and the two notches 6.1 correspond to the two sides of the lifting lug 2; when the baffle 6 is rotated to enable the gap 6.1 to correspond to the lifting lug 2, the baffle 6 is convenient to detach from the lifting arm 1.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The special tool for mechanically sealing and hoisting the kettle and the tank is characterized by comprising a hoisting arm, wherein a lifting lug is fixed at one end of the hoisting arm, two lug plates arranged along the axial direction of the hoisting arm are fixed at the other end of the hoisting arm, and the plate surfaces of the two lug plates are arranged oppositely; a pin shaft penetrates between the two lug plates, and the pin shaft is perpendicular to and intersected with the axis of the hoisting arm; two supporting plates which are respectively arranged on two sides of the lug plate are arranged around the pin shaft in a rotating mode, and when the supporting plates rotate to be perpendicular to the axis of the hoisting arm, opposite end faces of the two supporting plates are attached; the lifting arm is sleeved with a baffle which is arranged in a sliding manner, and a plurality of clamping blocks are fixed on the surface of the baffle facing the ear plate along the circumferential direction; the hoisting arm is provided with a wedge-shaped hole, a wedge-shaped block is movably arranged in the wedge-shaped hole in a penetrating mode, and the other side plate surface of the baffle is in movable contact with the wedge-shaped block.

2. The special tool for hoisting the mechanical seals of kettles and tanks, according to claim 1, wherein the hoisting arm is a hollow tube.

3. The special tool for mechanically sealing and hoisting the kettle or the groove according to claim 1, wherein the lifting lug is a steel plate with a U-shaped structure, the opening of the lifting lug faces the end of the hoisting arm, two sides of the lifting lug are welded and fixed with the outer wall of the hoisting arm, and the axis of the hoisting arm is placed on the plane where the lifting lug is located.

4. The special tool for mechanically sealing and hoisting the kettle or the tank as claimed in claim 3, wherein the baffle plate is symmetrically provided with two openings communicated with the central hole of the baffle plate, and the two openings correspond to the two sides of the lifting lug.

5. The special tool for mechanically sealing and hoisting kettles and tanks, as claimed in any one of claims 1 to 4, wherein the supporting plate is connected with the pin shaft through a connecting arm, one end of the connecting arm is sleeved on the pin shaft, and the other end of the connecting arm is fixed with the plate surface of the supporting plate.

6. The special tool for hoisting the mechanical seals of kettles and tanks, according to claim 5, wherein the other ends of the two supporting plates are fixed with limit blocks which are bent upwards.

7. The special tool for hoisting the mechanical seals of the kettles and the troughs as claimed in claim 5, wherein the wedge-shaped block is provided with a limit bolt through the end of the wedge-shaped hole.

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