Self-positioning sealing ring easy to assemble

Abstract

The utility model relates to a self-positioning easy-to-assemble sealing ring which comprises a main body, a plurality of sealing ribs are arranged on the upper end face and the lower end face of the main body respectively, a single-side positioning portion is arranged on the inner side of the main body, a positioning ridge face is arranged on the upper portion of the single-side positioning portion and comprises a side vertical face, and the side vertical face inclines towards the outer side of the main body. The uppermost end of the side vertical surface is connected with the upper end of the main body to form a sealing rib, the middle side surface is a vertical side plane, the lower part is an inclined surface, the joint of the upper part and the middle part of the single-side positioning part is an arc-shaped chamfer, and the joint of the middle part and the lower part is an arc-shaped chamfer; and the lowest end of the lower inclined surface of the single-side positioning part is connected with the bottom surface of the main body to form a sealing rib. By the adoption of the technical scheme, the assembling and positioning requirements of the sealing ring can be met, installation and positioning are simple and rapid, the sealing effect can be effectively improved, and the problem that the sealing ring with the complex contour is not easy to position and install, and consequently installation is not in place, and sealing fails is effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of gearbox sealing, in particular to a self-positioning and easy-to-assemble sealing ring. Background Technique

[0002] The gearbox cylinder sealing ring is arranged between the joint surface of the shifting mechanism housing and the cylinder gas passage. Its function is to prevent high-pressure gas from leaking out between the joint surface of the shifting mechanism and the cylinder gas passage. When the gearbox cylinder sealing ring fails, it will directly affect the performance and normal operation of the gearbox (hereinafter referred to as the sealing ring). The sealing ring is a medium made of sealing material to block the penetration channel between the gearbox shifting mechanism and the joint surface of the cylinder gas passage. When the sealing ring is subjected to the contact pressure between the shifting mechanism and the joint surface of the cylinder gas passage, it will produce elastic deformation and elastic restoring force, reduce the unevenness and roughness of the mating surface of the parts, increase the flow resistance of the medium, and then cut off the penetration channel of the working medium to achieve the sealing effect.

[0003] Due to limitations such as the structure of the model, some gearbox structures are relatively compact, and the sealing ring groove cannot avoid the arrangement of the vent hole position. At the same time, installing the sealing ring on the mating plane with a complex contour has high requirements for preventing errors and mistakes during the assembly process. In this case, there are problems of difficult positioning and assembly for the sealing ring between the plane of the gearbox shifting mechanism housing and the plane of the cylinder gas passage. Content of the Utility Model

[0004] The purpose of the utility model is to provide a self-positioning and easy-to-assemble sealing ring, aiming to solve the problems of difficult positioning and assembly of the existing gearbox cylinder sealing ring.

[0005] The technical solution adopted by the utility model is: a self-positioning and easy-to-assemble sealing ring, including a main body. Multiple sealing ribs are respectively arranged on the upper end surface and the lower end surface of the main body. A single-sided positioning part is arranged inside the main body. The upper part of the single-sided positioning part is a positioning step surface, and the positioning step surface includes a side vertical surface. The side vertical surface inclines towards the outside of the main body. The uppermost end of the side vertical surface is connected to the upper end of the main body to form a sealing rib. The middle side surface is a vertical side plane, and the lower part is an inclined surface. The connection between the upper part and the middle part of the single-sided positioning part is a circular arc chamfer, and the connection between the middle part and the lower part is a circular arc chamfer. The lowermost end of the inclined surface of the lower part of the single-sided positioning part is connected to the bottom surface of the main body to form a sealing rib.

[0006] A further technical solution of the utility model is: the number of the sealing ribs on the upper end surface of the main body is 3, and the protruding height of the sealing ribs is 0.5 mm to 1.5 mm, which improves the sealing effect.

[0007] A further technical solution of the utility model is: the number of the sealing ribs on the lower end surface of the main body is 3, and the protruding height of the sealing ribs is 0.5 mm to 1.5 mm, which improves the sealing effect.

[0008] A further technical solution of the present utility model is that the upper part of the outer side surface of the main body is inclined obliquely inward, the middle part is a vertical surface, and the lower part is inclined obliquely inward, which is convenient for installation and positioning.

[0009] The beneficial effects of the present utility model are as follows: Due to the adoption of the above technical solution, a self-positioning and easy-to-assemble sealing ring of the present utility model can meet the assembly and positioning requirements of the sealing ring, and the installation and positioning are simple and fast. It can effectively improve the sealing effect, and effectively avoid the problems that the sealing ring with a complex contour is not easy to position and install, resulting in ineffective sealing caused by improper installation. Description of the Drawings

[0010] Figure 1 is a schematic cross-sectional structure diagram of a self-positioning and easy-to-assemble sealing ring of the present utility model;

[0011] Figure 2 is a schematic structural diagram when the sealing ring of the present utility model is installed between the plane of the gearbox shift mechanism housing and the plane of the cylinder gas passage. Specific Embodiments

[0012] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0013] Embodiment:

[0014] As Figure 1 、 2 shown, a self-positioning and easy-to-assemble sealing ring includes a main body 1. Multiple sealing ribs 2 are respectively arranged on the upper end surface and the lower end surface of the main body. A single-sided positioning portion 3 is arranged inside the main body. The upper part of the single-sided positioning portion is a positioning step surface 4. The positioning step surface includes a side vertical surface 41, and the side vertical surface is inclined towards the outside of the main body. The uppermost end of the side vertical surface is connected to the upper end of the main body to form a sealing rib. The middle side surface is a vertical side plane 5, and the lower part is an inclined surface 6. The connection between the upper part and the middle part of the single-sided positioning portion is a rounded chamfer, and the connection between the middle part and the lower part is a rounded chamfer. The lowermost end of the inclined surface at the lower part of the single-sided positioning portion is connected to the bottom surface of the main body to form a sealing rib.

[0015] Further, the number of sealing ribs on the upper end surface of the main body is 3, and the protruding height of the sealing ribs is 0.5 mm to 1.5 mm, which improves the sealing effect.

[0016] Further, the number of sealing ribs on the lower end surface of the main body is 3, and the protruding height of the sealing ribs is 0.5 mm to 1.5 mm, which improves the sealing effect.

[0017] Further, the upper part of the outer side surface of the main body is inclined obliquely inward, the middle part is a vertical surface, and the lower part is inclined obliquely inward, which is convenient for installation and positioning.

[0018] Furthermore, the side surface inclines 10° to 15° towards the outside of the main body, which is convenient for installation and positioning.

[0019] This technical solution uses a sealing ring body that fits the side wall of the groove of the shift mechanism housing and a single-sided positioning portion to fix the sealing ring. The sealing rib cooperates with the plane 8 of the cylinder gas passage to play a sealing role. When the sealing ring is installed on the joint surface of the plane 7 of the shift mechanism housing and the plane 8 of the cylinder gas passage, the sealing ring body fits the side wall of the groove and combines with the opposite single-sided positioning portion, avoiding difficult positioning and installation due to complex contours, and further avoiding the phenomenon of improper installation, thereby reducing the probability of sealing failure.

[0020] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-positioning and easy-to-assemble sealing ring, characterized in that: It includes a main body, and a plurality of sealing ribs are respectively arranged on the upper end face and the lower end face of the main body. A single-sided positioning part is arranged on the inner side of the main body, and the upper part of the single-sided positioning part is a positioning step surface, and the positioning step surface includes a side vertical surface, and the side vertical surface is inclined toward the outer side of the main body. The upper end of the side vertical surface is connected with the upper end of the main body to form a sealing rib, the middle side surface is a vertical side plane, and the lower part is an inclined surface. The connection between the upper part and the middle part of the single-sided positioning part is an arc-shaped chamfer, and the connection between the middle part and the lower part is an arc-shaped chamfer. The lower end of the lower inclined surface of the single-sided positioning part is connected with the bottom surface of the main body to form a sealing rib.

2. The self-positioning easy-to-assemble sealing ring according to claim 1, characterized in that: The number of sealing ribs on the upper end surface of the main body is 3, and the protruding height of the sealing ribs is 0.5mm to 1.5mm.

3. The self-positioning easy-to-assemble sealing ring according to claim 1, characterized in that: The number of sealing ribs on the lower end surface of the main body is 3, and the protruding height of the sealing ribs is 0.5mm to 1.5mm.

4. The self-positioning easy-to-assemble sealing ring according to claim 1, characterized in that: The upper part of the outer side surface of the main body is inclined obliquely inward, the middle part is a vertical surface, and the lower part is inclined obliquely inward.

5. The self-positioning easy-to-assemble sealing ring according to claim 1, characterized in that: The side elevation is inclined 10° to 15° toward the outer side of the main body.

Images