SUMMERY OF THE UTILITY MODEL
It is an object of the present disclosure to provide a drive spindle end seal box to at least partially address the problems presented in the related art.
In order to realize above-mentioned purpose, the present disclosure provides a transmission main shaft end seal box for seal transmission main shaft and main part support between the clearance, be formed with the confession on the main part support the trompil that the transmission main shaft passed, transmission main shaft end seal box establishes including the cover on the transmission main shaft, and with transmission main shaft clearance fit's seal box main part, being close to of seal box main part the one end of main part support is equipped with the convex extension section of axial, the extension section stretches into the clearance, and with transmission main shaft clearance fit, being used for of seal box main part is connected the one end of extension section is equipped with radial convex first flange, first flange with the outer wall fixed connection of main part support, the extension section with first flange form L shape groove, with the trompil department looks butt of main part support.
Optionally, a sealing ring is sleeved at a corner of the L-shaped groove.
Optionally, the inner diameter of the seal box main body is larger than the inner diameter of the extension section, a seal cavity is formed between the seal box main body and the transmission main shaft, a packing layer is arranged in the seal cavity, and the transmission main shaft end seal box further comprises a pressing piece arranged at one end, far away from the main body support, of the seal box main body, so as to press the packing layer.
Optionally, one end of the seal box main body, which is far away from the main body support, is provided with a second flange protruding in the radial direction, the pressing piece comprises a pressing section sleeved on the transmission main shaft and a connecting section protruding in the radial direction, which is far away from the main body support, of the pressing section, wherein the pressing section axially extends into the seal cavity, and the connecting section is arranged in parallel with the second flange and is fixedly connected with the second flange through a fastener.
Optionally, the packing layer comprises two groups of V-shaped packing rings arranged around the transmission main shaft, and openings of the two groups of V-shaped packing rings are oppositely arranged, wherein each group of V-shaped packing rings comprises at least one V-shaped packing ring.
Optionally, the packing layer further comprises a metal spacer disposed between two sets of the V-shaped packing rings.
Optionally, the packing layer further includes a graphite packing ring, the graphite packing ring is disposed at an end of the sealing cavity close to the pressing member, and the pressing member extends into the sealing cavity and contacts with the graphite packing ring.
Optionally, the extension section is bonded to the side wall of the opening through a sealing adhesive.
Optionally, the sealed box body comprises a first body and a second body detachably connected, the first body and the second body radially abutting to form the sealed box body.
Optionally, the side walls of the first main body and the second main body are respectively provided with a connecting portion protruding in the radial direction along the axial direction, one of the connecting portions on the first main body and the second main body is formed with a protrusion, the other one of the connecting portions on the first main body and the second main body is formed with a groove matched with the protrusion, and the two connecting portions are fixedly connected through a pin.
Through the technical scheme, the abrasion of the transmission main shaft and the equipment main body can be reduced, the manufacturing cost is saved, the sealing performance of the transmission main shaft and the equipment main body is enhanced, the loss of related production materials is reduced, and other materials are prevented from running into the equipment main body from a gap to influence the purity of the materials.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic illustration of the installation of a drive spindle end seal box provided by an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a drive spindle end seal box provided in accordance with an exemplary embodiment of the present disclosure;
FIG. 3 is a front view of a drive spindle end seal box provided by an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic structural view of a compression member provided in an exemplary embodiment of the present disclosure;
fig. 5 is a front view of a compression member provided in an exemplary embodiment of the present disclosure.
Description of the reference numerals
1. Main body support of transmission main shaft 2
3. Seal box body 31 first body
32. Second body 33 attachment portion
4. Extension 51 first flange
52. Second flange 6 sealing ring
7. Pressing piece 71 pressing section
72. Connecting section 81V-shaped packing ring
82. Metal spacer 83 graphite packing ring
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, "inner" and "outer" are directed to the outlines of the respective components themselves, and furthermore, the terms "first", "second", and the like used in the present disclosure are intended to distinguish one element from another, and have no order or importance. In the present disclosure, when the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements, unless otherwise indicated.
Referring to fig. 1 to 5, the present disclosure provides a transmission main shaft end seal box for sealing a gap between a transmission main shaft 1 and a main body support 2, wherein the transmission main shaft 1 and the main body support 2 of an apparatus are firstly assembled in a main body manner, specifically, an opening through which the transmission main shaft 1 passes is formed on the main body support 2, the transmission main shaft end seal box may include a seal box main body 3 which is sleeved on the transmission main shaft 1 and is in clearance fit with the transmission main shaft 1, one end of the seal box main body 3 close to the main body support 2 is provided with an axially protruding extension section 4, the extension section 4 extends into the gap and is in clearance fit with the transmission main shaft 1, and the extension section 4 is tightly connected with a side wall of the opening of the main body support 2, one end of the seal box main body 3 for connecting the extension section 4 is provided with a radially protruding first flange 51, the first flange 51 is fixedly connected with an outer wall of the main body support 2, in an embodiment of the present disclosure, the first flange 51 is connected with the outer wall of the main body support 2 through a bolt, and a resilient pad is additionally locked, so as to prevent the bolt from being loosened due to long-time shock, and poor sealing performance is caused. As shown in fig. 1, the extension 4 and the first flange 51 form an L-shaped groove to contact the opening of the main body frame 2, specifically, the extension 4 contacts the side wall of the opening, and the first flange 51 contacts the outer wall of the main body frame 2 near the opening, so that the L-shaped groove sealing structure can prevent leakage of material, dust, and water.
Through the technical scheme, the abrasion of the transmission main shaft and the equipment main body can be reduced, the manufacturing cost is saved, the sealing performance of the transmission main shaft and the equipment main body is enhanced, the loss of related production materials is reduced, and other materials are prevented from running into the equipment main body from a gap to influence the purity of the materials.
In some embodiments, referring to fig. 1, the sealing ring 6 may be sleeved at the corner of the l-shaped groove, and the material of the sealing ring 6 may be a high polymer material, such as polyvinyl chloride or a high elastic polymer. The sealing ring 6 is matched with the end face of the main body support 2 to form a sealing structure, and plays roles of preventing materials, dust and water.
As an exemplary embodiment of the present disclosure, referring to fig. 1, an inner diameter of the seal box main body 3 is greater than an inner diameter of the extension section 4, a seal cavity is formed between the seal box main body 3 and the transmission main shaft 1, a packing layer may be disposed in the seal cavity to form a seal between the seal box main body 3 and the transmission main shaft 1, and the transmission main shaft end seal box may further include a pressing member 7 disposed at an end of the seal box main body 3 away from the main body support 2 to press the packing layer and seal the packing layer in the seal cavity. After using for a certain time, conveniently demolish compressing tightly piece 7 in order to change new packing, can make overall structure's life extension like this. Specifically, the material of compressing tightly 7 can be 45# steel, and the contact surface that compresses tightly 7 and the packing layer can improve hardness through quenching, increases life.
Further, referring to fig. 1, 4 and 5, one end of the seal box body 3 away from the body bracket 2 may be provided with a second flange 52 protruding radially, and the pressing member 7 may include a pressing section 71 sleeved on the transmission main shaft 1 at a distance, and a connecting section 72 protruding radially at one end of the pressing section 71 away from the body bracket 2, wherein the pressing section 71 extends into the seal cavity along the axial direction, and the connecting section 72 is arranged in parallel with the second flange 52 and is fixedly connected by a fastener. Specifically, the connecting section 72 and the second flange 52 can be fixedly connected by bolts, and the pressing member 7 contacts with the packing layer to press the packing layer.
Wherein, referring to fig. 1, the packing layer may include two sets of V-shaped packing rings 81 arranged around the transmission main shaft 1, the openings of the two sets of V-shaped packing rings 81 are arranged oppositely, wherein each set of V-shaped packing rings 81 includes at least one V-shaped packing ring 81, the number of V-shaped packing rings 81 may be arranged adaptively according to the size of the seal box main body 3. After the sealing box main body 3 is fixed to the main body support 2, two groups of V-shaped packing rings 81 with opposite openings are sequentially pushed into the sealing cavity, and then the V-shaped packing rings 81 are stressed to be opened to form a sealing structure. Specifically, the material of the V-shaped packing ring 81 may be teflon.
Further, referring to fig. 1, the packing layer may further include a metal spacer 82 disposed between two sets of V-shaped packing rings 81 to further seal between the transmission main shaft 1 and the main body support 2, wherein the metal spacer 82 may be made of copper.
Still further, referring to fig. 1, the packing layer may further include a graphite packing ring 83, the graphite packing ring 83 is disposed at one end of the seal cavity close to the pressing member 7, the pressing member 7 extends into the seal cavity and contacts with the graphite packing ring 83 to press the graphite packing ring 83, wherein the graphite packing ring 83 may be a braided packing.
Wherein, the lateral wall of extension 4 and trompil can bond through the sealant mutually, specifically, the contact terminal surface of extension 4 and main part support 2 can the spraying high temperature resistant anaerobism acrylic acid sealed glue, then stretches into the clearance between transmission main shaft 1 and the main part support 2 with extension 4 to make between seal box and the main part support 2 closely bond, sealing performance is good. It should be emphasized that the extension 4 may also be fixed to the main body bracket 2 by welding, bolting, etc., without limitation.
According to some embodiments, the capsule body 3 may comprise a first body 31 and a second body 32, which are detachably connected, the first body 31 and the second body 32 being radially butted to form the capsule body 3. As shown in fig. 2 and 3, the sealed box body 3 is designed as two detachable half boxes, namely a first body 31 and a second body 32, and in the embodiment of the present disclosure, the two half boxes have the same size and shape, and are locked to form the integrated sealed box body 3, so as to facilitate disassembly and maintenance.
It should be noted that the sealed box main body can be formed by casting or milling round steel by a machining center to form two half boxes, and the primary body forming is completed by metal processing technologies such as turning, milling, drilling, planing and the like.
Further, referring to fig. 2 and 3, the side walls of the first main body 31 and the second main body 32 may be respectively provided with a connecting portion 33 protruding in the radial direction along the axial direction, one of the connecting portions 33 on the first main body 31 and the second main body 32 is formed with a protrusion, and the other one is formed with a groove for matching with the protrusion, so that the first main body 31 and the second main body 32 can be accurately positioned and conveniently installed through the matching of the two, and the two connecting portions 33 can be fixedly connected through a taper pin. Of course, the connection manner of the first body 31 and the second body 32 is not limited in the present disclosure, and all of them belong to the protection scope of the present disclosure.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.