Oil pressing disc sealing device

Abstract

An oil pressing disc sealing device comprises a sealing body, a fixing assembly and a supporting reinforcing layer, the sealing body is made of foaming silica gel, the sealing body is square, and mounting holes are symmetrically distributed in the edge of the sealing body; the fixing assembly comprises a plurality of pressing strips and fixing bolts, the pressing strips are long-strip-shaped, through holes are formed in the surfaces of the pressing strips, and the through holes are aligned with the mounting holes of the sealing body and fixedly connected with the mounting holes through the fixing bolts; the supporting reinforcing layer is embedded into the sealing body, is made of nylon gridding cloth, is compounded with the foaming silica gel to form a layered structure and is used for enhancing the deformation resistance of the sealing body. Compared with the prior art, the sealing performance, the structural stability, the durability and the lubrication management are obviously better, the operation stability of industrial equipment can be effectively improved, the maintenance cost is reduced, and the service life of the equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The present patent relates to an oil pressure plate sealing device. BACKGROUND

[0002] In the field of industrial equipment lubricating oil pressure plate sealing, the traditional sealing device has the following technical defects:

[0003] The fixed assembly structure is simple and easy to loosen.

[0004] The existing fixing method mainly relies on a single metal pressure ring or a bolt to directly fix the sealing element. However, in a vibrating, impacting or high-temperature environment, the bolt may loosen due to thermal expansion, mechanical vibration and other factors, affecting the stability of the seal. Some structures use single-directionally arranged fixed pressure strips, which are prone to local lifting after being stressed, causing uneven sealing and increasing the risk of seal failure.

[0005] The sealing effect is limited and difficult to adapt to complex working conditions

[0006] The existing sealing structure is usually designed as a fully enclosed type, without optimization for different sealing surface shapes and equipment requirements, resulting in incomplete sealing contact and the risk of oil leakage. The traditional sealing element does not have a special fitting structure, and the combination with the metal pressure plate is low, which may cause local poor sealing after being stressed.

[0007] In summary, the technical background section of the present patent aims to describe the current status of the existing technology, and the deficiencies of the existing technology indicate that this section will provide necessary background information for understanding the technical contributions and innovation points of the present patent. The signals disclosed in this background section only aim to increase the understanding of the overall background of the present patent, and should not be considered as implying subjective consciousness in any form. CONTENT OF THE UTILITY MODEL

[0008] In view of the above, the purpose of the present patent is to provide an oil pressure plate sealing device.

[0009] In order to achieve the purpose of the present patent, the technical solution adopted is an oil pressure plate sealing device, comprising a sealing body, a fixed assembly and a support reinforcement layer. The sealing body is made of foamed silica gel and is square in shape, with symmetrically distributed mounting holes at the edges. The fixed assembly includes multiple pressure strips and fixing bolts. The pressure strips are long strips with through holes on their surfaces, which are aligned with the mounting holes of the sealing body and are fixedly connected by the fixing bolts. The support reinforcement layer is embedded inside the sealing body and is composed of nylon mesh cloth, which forms a layered structure with the foamed silica gel to enhance the anti-deformation ability of the sealing body.

[0010] Further, the center area of the sealing body is provided with a hollow structure which matches the pressure plate.

[0011] Further, the edge of the hollow structure is provided with an annular groove, and a rubber ring is arranged in the groove. The rubber ring is used for fitting the pressing plate.

[0012] Further, the pressing strips are radially distributed, one end of each pressing strip converges to the center of the sealing body, and the other end extends to the edge mounting hole.

[0013] Further, the cross section of the pressing strip is trapezoidal, the upper surface is wider than the lower surface, and an anti-skid tooth pattern is arranged on the pressing strip and closely contacts the sealing body.

[0014] Further, an oil guide groove is further arranged on the lower surface of the sealing body and is radially distributed. The groove depth is 1 / 3 of the thickness of the sealing body, and is used for guiding the lubricating oil to uniformly spread.

[0015] The beneficial effects of the patent are as follows:

[0016] The radially distributed pressing strips improve the fixing stability

[0017] The fixing mode of the traditional sealing device is prone to looseness due to equipment vibration or thermal expansion. However, the radially distributed pressing strips of the patent can keep the sealing body stable under the stress in different directions, and avoid the problems of local lifting or looseness. The radially distributed pressing strips can improve the pressure transmission efficiency compared with the parallel pressing strips, and can improve the pressure in the edge area through the lever principle, and effectively and uniformly disperse the stress.

[0018] The trapezoidal cross section design (wider upper surface and narrower lower surface) of the pressing strip can increase the contact area with the sealing body, and further enhance the fixing effect through the anti-skid tooth pattern structure, so that the sealing body is more firm and reliable.

[0019] The annular groove + rubber ring design: the edge of the hollow structure is provided with an annular groove, and a rubber ring is arranged in the groove, so that the rubber ring and the metal pressing plate form good fitting, improve the fitting degree of the sealing surface, and reduce the leakage problem caused by poor sealing.

[0020] The independent replaceable pressing strip and the silica gel body design can reduce the use cost through modular maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the patent or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the patent, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a structural schematic diagram of the patent;

[0023] In the figure, 101-sealing body, 102-pressing strip, 103-hollow structure, 104-groove. DETAILED DESCRIPTION

[0024] The following is a description of the present patent in this embodiment according to the drawings and some embodiments.

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the present patent will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] The present embodiment provides a sealing device for oil press, as shown in the figure, comprising the following structures: Figure 1

[0027] Sealing body: molded by foamed silica gel, square flat structure, four edges are provided with mounting holes, the center of the main body is provided with a circular hollow structure, the diameter matches the outer diameter of the metal pressing disc.

[0028] Supporting reinforcement layer: nylon mesh is embedded in the main body during foamed silica gel injection molding, forming a layered structure of upper and lower silica gel layers clamping the mesh.

[0029] Fixing assembly:

[0030] Pressing strip: the pressing strip is distributed radially, one end of each pressing strip converges at the center of the sealing body, and the other end extends to the edge mounting hole to optimize the stress distribution and improve the overall structural strength, the cross section of the pressing strip is trapezoidal, and the surface is provided with anti-skid tooth pattern.

[0031] Fixing bolt: after passing through the pressing strip through hole and the sealing body mounting hole, it is fixed with elastic washer and lock nut.

[0032] Annular groove: provided at the edge of the hollow structure, and the fluorine rubber sealing ring is built-in.

[0033] Oil guide groove: a radial straight groove is provided on the lower surface of the sealing body, the groove depth is 1 / 3 of the total thickness of the sealing body, which is used for guiding the uniform diffusion of lubricating oil and improving the sealing and lubricating performance.

[0034] Detailed process:

[0035] 1. Installation stage

[0036] First, place the sealing body on the oil press, so that the hollow structure is matched and aligned with the metal pressing disc.

[0037] Place the pressing strip on the surface of the sealing body, so that its through hole corresponds to the mounting hole of the sealing body.

[0038] Use the fixing bolt to pass through the mounting holes of the pressing strip and the sealing body, and tighten to ensure the stability of the fixing assembly. ​

[0039] 2. Sealing stage

[0040] When the device is running, the sealing body is deformed under pressure, and the support reinforcement layer of the nylon mesh cloth plays a role in uniformly dispersing stress, preventing local deformation, and improving sealing life.

[0041] The matching of the hollow structure and the metal pressure plate enables the sealing body to fully conform to the sealing surface, and the rubber ring in the annular groove further enhances the sealing effect and reduces the risk of leakage.

[0042] The radial pressing strip optimizes the stress distribution, so that the sealing body remains stable in a high-pressure environment, avoiding loosening or deformation caused by local stress.

[0043] 3. Lubricating oil management

[0044] During operation, the lubricating oil inside the device is evenly distributed through the oil guide groove, so that the lubricating oil fully covers the sealing surface, reducing friction and improving sealing performance.

[0045] The depth optimization of the oil guide groove (about 1 / 3 of the thickness of the sealing body) ensures the reasonable flow of lubricating oil, making the lubrication effect more uniform and preventing local lubrication deficiency from causing sealing failure.

[0046] The device realizes dynamic sealing and pressure balance through a multi-layer composite structure:

[0047] Sealing mechanism:

[0048] The foamed silicone body is elastically deformed by the pre-tightening force of the bolt, forming a surface contact seal with the surface of the pressure plate.

[0049] The fluororubber ring expands radially when the pressure plate is pressed, filling the microscopic gaps.

[0050] The anti-slip teeth interlock with the silicone to prevent interface slip.

[0051] Pressure balance:

[0052] The radial pressing strip uniformly transmits the central pressure to the edge mounting point.

[0053] Lubrication guidance:

[0054] The lubricating oil forms a radial flow field through the oil guide groove, and the spiral groove design produces a centrifugal pump effect.

[0055] The above specific embodiments are typical embodiments of the patent, but the patent is not limited to this. Reasonable changes can be made to the structure, material and control logic without deviating from the core technical idea of the patent, and all improvements based on this are within the protection scope of the patent.

[0056] The specific embodiments of the present patent are merely illustrative guidelines, and do not limit the scope of protection of the present patent. Various changes and modifications can be made to the specific embodiments of the present patent without departing from the spirit and principle of the present patent. These changes and modifications all belong to the scope of the present patent.

[0057] It is worth mentioning that in the description of the present patent, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified. In the present patent, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; the circuits described in the present patent are all commonly used circuits in the art, and other related components are all commonly used components in the art, and for those skilled in the art, the specific meaning of the above-mentioned terms in the present patent can be understood according to the specific circumstances.

[0058] It is obvious for those skilled in the art that the present patent is not limited to the details of the above-mentioned exemplary embodiments, and the present patent can be implemented in other specific forms without departing from the spirit or basic characteristics of the present patent. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present patent is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the essential elements of the claims are intended to be included in the present patent. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A pressure oil disc sealing device, comprising a sealing body, a fixing component, and a supporting reinforcement layer, characterized in that: The sealing body is made of foamed silicone and is square in shape with symmetrically distributed mounting holes on its edges. The fixing assembly includes multiple pressure strips and fixing bolts. The pressure strips are elongated and have through holes on their surfaces. The through holes are aligned with the mounting holes of the sealing body and are fixedly connected by the fixing bolts. The supporting reinforcement layer is embedded inside the sealing body and is made of nylon mesh fabric. It is composite with the foamed silicone to form a layered structure to enhance the deformation resistance of the sealing body.

2. The oil pressure plate sealing device according to claim 1, characterized in that, The central area of ​​the sealing body has a hollow structure that matches the pressure plate.

3. The oil pressure plate sealing device according to claim 2, characterized in that, The hollow structure has an annular groove on the edge, with a rubber ring inside the groove for fitting the pressure plate.

4. The oil pressure plate sealing device according to claim 1, characterized in that, The pressure strips are distributed radially, with one end of each strip converging at the center of the sealing body and the other end extending to the edge mounting hole.

5. The oil pressure plate sealing device according to claim 4, characterized in that, The pressure strip has a trapezoidal cross-section, with the upper surface being wider than the lower surface. The pressure strip is provided with anti-slip serrations, which fit tightly against the sealing body.

6. The oil pressure plate sealing device according to claim 1, characterized in that, It also includes oil guide grooves, which are located on the lower surface of the sealing body and are distributed radially. The groove depth is 1 / 3 of the thickness of the sealing body, and are used to guide the lubricating oil to spread evenly.

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