CN217583179U - Mechanical sealing device for viscous materials - Google Patents

Abstract

The utility model discloses a mechanical seal device for viscous material, relate to mechanical seal technical field, this mechanical seal device is including installing at the terminal impeller of axle sleeve, impeller rotates along with axle sleeve and axle, impeller comprises a plurality of stirring teeth in the collar at middle part and the collar outside, the collar suit is epaxial, a plurality of stirring tooth equidistance, the radial edge at the collar of setting of level, a plurality of mounting holes have been seted up to the symmetry on the collar, the position that the axle sleeve corresponds the mounting hole has seted up threaded hole, it is fixed through mounting screw between mounting hole and the screw hole. Compared with the prior art, the device adds an impeller device at the machine seal front end of medium side, and when the sand mill is worked, this device can stir aforementioned blind area, makes the material of here get up, reduces the probability that this type of material condenses at the sealing ring periphery to protect original mechanical seal structure, avoid sealed moving and static ring to be sealed the damage or the inefficacy that causes by the rotation by force.

Description

Mechanical sealing device for viscous materials

Technical Field

The utility model relates to a mechanical seal technical field, concretely relates to mechanical seal device for viscous material.

Background

The sand mill is widely applied to stirring and polishing operations in industries such as food, petrifaction, emulsification, paint, new energy lithium battery materials and the like, and the traditional sealing is a packing, single-end-face or double-end-face spring type mechanical sealing device. However, when wet grinding some viscous materials and easily polymerized and solidified materials, the existing mechanical seal mainly has the following problems:

1) The materials are near the front end of the mechanical seal, generally are dead zones of material flow, are easy to gather at the periphery of the sealing dynamic and static rings at the front end of the mechanical seal, adhere to the sealing surface and influence the sealing effect.

2) Before the sand mill shut down, under the condition of the machine that fails to be washed fully, these materials solidify and the sealing end face periphery after shutting down, when starting up the operating device again, sealed quiet ring is rotated by force, can cause the sealing ring to damage, sealed inefficacy.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a mechanical seal device for viscous material to improve the aforesaid not enough, at the machine seal front end of medium side, add impeller device one, the sand mill during operation, the aforesaid blind area can be stirred to this device, makes the material flow here, reduces the probability that this type of material condenses at the sealing ring periphery, thereby protects original mechanical seal structure, avoids sealed quiet ring to be rotated the sealed damage or the inefficacy that cause by force.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

the utility model provides a mechanical seal device for viscous material which characterized in that, is including installing the impeller at the axle sleeve end, impeller rotates along with axle sleeve and axle, wherein: impeller comprises the collar at middle part and a plurality of stirring teeth in the collar outside, the collar suit is epaxial, and is a plurality of stirring tooth equidistance, the radial edge at the collar of setting of level, a plurality of mounting holes have been seted up to the symmetry on the collar, and the position that the axle sleeve corresponds the mounting hole is seted up threaded hole, and is fixed through mounting screw between mounting hole and the screw hole, one side that the collar contacts the axle sleeve is provided with the seal groove, install stirring seal circle in the seal groove.

Preferably, the stirring teeth are inwards arranged and can wrap the shaft sleeve, the top sides of the stirring teeth are of rectangular structures, and the two sides of the stirring teeth are of surface inclined plane structures.

Preferably, still include gland, rotating ring seat, rotating ring, quiet ring and spring, wherein: the gland is connected with the bearing carrier through a flange plate, a through hole is formed in the center of the gland, an inner spiral sleeve is installed on the through hole, mounting platforms for mounting static rings are arranged at two ends of the gland, one or more annular grooves are formed in the side walls of the mounting platforms, and O-shaped sealing rings are arranged in the annular grooves; the movable ring seat is arranged on the shaft sleeve through an axial screw; the movable ring is arranged on the movable ring seat, a movable sealing ring and a clamp spring are arranged between the movable ring and the movable ring seat, and the end face of the movable ring is in contact sealing with the end face of the static ring; a static sealing ring and a lip blocking ring are arranged between the static ring and the gland; one end of the spring is arranged in a spring hole of the gland, and the other end of the spring is in contact with the static ring.

Preferably, the gland is internally provided with a spacer fluid channel.

The utility model discloses a mechanical seal device for viscous material has following beneficial effect:

this mechanical seal device is including installing at the terminal impeller of axle sleeve, impeller rotates along with axle sleeve and axle, impeller comprises the collar at middle part and a plurality of stirring teeth in the collar outside, the collar suit is epaxial, a plurality of stirring tooth equidistance, the radial edge at the collar of setting of level, a plurality of mounting holes have been seted up to the symmetry on the collar, the position that the axle sleeve corresponds the mounting hole sets up threaded hole, pass through mounting screw fixed between mounting hole and the threaded hole. Compared with the prior art, the device is additionally provided with the impeller device at the front end of the machine seal on the medium side, when the sand mill works, the device can stir the blind area to enable the material at the blind area to flow, and the probability of condensation of the material at the periphery of the sealing ring is reduced, so that the original mechanical sealing structure is protected, and the sealing damage or failure caused by forced rotation of the sealing dynamic and static rings is avoided.

Drawings

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

fig. 2 is a schematic view of a first structure of the stirring impeller of the present invention;

fig. 3 is a second structural schematic diagram of the stirring impeller of the present invention;

fig. 4 is a schematic view of a third structure of the stirring impeller of the present invention;

fig. 5 is a schematic view of the internal structure of the present invention.

In the figure, 1-stirring impeller, 101-mounting ring, 102-stirring tooth, 103-mounting hole, 104-mounting screw, 105-stirring sealing ring, 2-shaft sleeve, 201-threaded hole, 3-shaft, 4-gland, 401-inner screw sleeve, 402-mounting table, 403-ring groove, 404-isolating liquid channel, 5-moving ring seat, 501-moving sealing ring, 502-snap spring, 503-axial screw, 6-moving ring, 7-static ring, 701-static sealing ring, 702-lip sealing retainer ring and 8-spring.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 5, the mechanical sealing device for viscous materials includes a stirring impeller 1 installed at the end of a shaft sleeve 2, the stirring impeller 1 rotates along with the shaft sleeve 2 and a shaft 3, in the drawing, the stirring impeller 1 is composed of a mounting ring 101 at the middle part and a plurality of stirring teeth 102 at the outer side of the mounting ring 101, the mounting ring 101 is sleeved on the shaft 3, the plurality of stirring teeth 102 are arranged at equal intervals and horizontally arranged at the edge of the mounting ring 101, a plurality of mounting holes 103 are symmetrically formed in the mounting ring 101, a threaded hole 201 is formed in the position of the shaft sleeve 2 corresponding to the mounting hole 103, the mounting hole 103 and the threaded hole 201 are fixed by a mounting screw 104, a sealing groove is formed in one side of the mounting ring 101 contacting the shaft sleeve 2, and a stirring sealing ring 105 is installed in the sealing groove.

In this embodiment, stirring tooth 102 inwards sets up, and can wrap up axle sleeve 2 and rotating ring 6, and the top side of stirring tooth 102 is the rectangle structure, and stirring tooth 102 both sides are the face inclined plane structure, and its cross section is the isosceles trapezoid structure, and during the practical application, the shape of stirring tooth also can adopt other common structures, and above-mentioned structure is preferred structure.

During practical application, this impeller 1 sets up the machine seal front end at the medium side, and the sand mill during operation, this device can stir aforementioned blind area, makes the material of this place flow, reduces the probability that this type of material condenses at the sealing ring periphery to protect original mechanical seal structure, avoid sealed quiet ring to be rotated by force and cause sealed damage or inefficacy.

It should be noted that the structure further comprises a gland 4, a moving ring seat 5, a moving ring 6, a stationary ring 7 and a spring 8, in the figure, the gland 4 is connected with a bearing carrier through a flange, a through hole is arranged at the central position of the gland 4, an inner spiral sleeve 401 is installed on the through hole, mounting platforms 402 for mounting the stationary ring 7 are arranged at the two ends of the gland 4, a ring groove 403 and a ring groove 403 are arranged on the side wall of the mounting platform 402 and used for collecting leakage liquid of the mechanical seal, and an O-shaped sealing ring is arranged in the ring groove 403; the movable ring seat 5 is arranged on the shaft sleeve 2 through an axial screw 503; the rotating ring 6 is installed on the rotating ring seat 5, and in the figure, a plurality of positioning pins are arranged between the rotating ring 6 and the rotating ring seat 5. A dynamic sealing ring 501 and a clamp spring 502 are arranged between the dynamic ring 6 and the dynamic ring seat 5 to ensure floating connection. The end surface of the movable ring 6 is in contact seal with the end surface of the static ring 7; a static sealing ring 701 and a lip sealing ring 702 are arranged between the static ring 7 and the gland 4, and a plurality of positioning pins are arranged between the static ring 7 and the gland 4 to realize floating connection. One end of the spring 8 is arranged in a spring hole of the gland 4, and the other end of the spring 8 contacts the static ring 7. In the figure, a spacer fluid channel 404 is arranged in the gland 4, one end of the spacer fluid channel 404 is provided with a spacer fluid inlet, a multi-head spiral forming machine sealing spacer fluid circulating device is formed by the inner spiral sleeve 401 and the shaft sleeve 2, and the other end of the spacer fluid channel is provided with a spacer fluid outlet and a leakage hole.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (4)

1. A mechanical seal device for viscous materials, characterized by, including installing stirring impeller (1) at axle sleeve (2) terminal, stirring impeller (1) rotates with axle sleeve (2) and axle (3), wherein:

impeller (1) comprises a plurality of stirring teeth (102) in the collar (101) and collar (101) outside at middle part, collar (101) suit is on axle (3), and is a plurality of stirring teeth (102) equidistance, the radial edge that sets up at collar (101) of level, a plurality of mounting holes (103) have been seted up to symmetry on collar (101), and screw hole (201) have been seted up to the position that axle sleeve (2) correspond mounting hole (103), and is fixed through mounting screw (104) between mounting hole (103) and screw hole (201), one side of collar (101) contact axle sleeve (2) is provided with the seal groove, install stirring sealing washer (105) in the seal groove.

2. The mechanical sealing device for viscous materials according to claim 1, characterized in that the rabble tooth (102) is disposed inward and can wrap the shaft sleeve (2), the top side of the rabble tooth (102) has a rectangular structure, and two sides of the rabble tooth (102) have a plane bevel structure.

3. The mechanical seal for viscous materials according to claim 1, further comprising a gland (4), a moving ring seat (5), a moving ring (6), a stationary ring (7) and a spring (8), wherein:

the gland (4) is connected with a bearing carrier through a flange plate, a through hole is formed in the center of the gland (4), an inner spiral sleeve (401) is installed on the through hole, installation platforms (402) for installing static rings (7) are arranged at two ends of the gland (4), one or more annular grooves (403) are formed in the side wall of each installation platform (402), and O-shaped sealing rings are arranged in the annular grooves (403);

the movable ring seat (5) is arranged on the shaft sleeve (2) through an axial screw (503);

the movable ring (6) is installed on the movable ring seat (5), a movable sealing ring (501) and a clamp spring (502) are arranged between the movable ring (6) and the movable ring seat (5), and the end face of the movable ring (6) is in contact seal with the end face of the static ring (7);

a static sealing ring (701) and a lip sealing baffle ring (702) are arranged between the static ring (7) and the gland (4);

one end of the spring (8) is arranged in a spring hole of the gland (4), and the other end of the spring (8) is in contact with the static ring (7).

4. The mechanical seal for viscous materials according to claim 3, characterized in that the gland (4) is internally provided with a spacer fluid channel (404).

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