A vacuum grease coating device for annular sealing ring

Abstract

The present invention discloses a vacuum grease coating device for an annular sealing ring, comprising: a support and expansion assembly, an electric rotating disk and a quantitative setter; the support and expansion assembly is sleeved inside the annular sealing ring through its inner ring support and expansion mechanism to expand and fix the annular sealing ring, and the inner ring support and expansion mechanism is contracted through its outer ring contraction mechanism to disassemble and load the annular sealing ring, and is installed on the rotating end face of the electric rotating disk through its chassis, and the support and expansion assembly and the annular sealing ring are driven to rotate at a uniform speed together through the electric rotating disk; the coating brush of the quantitative setter contacts the working surface of the annular sealing ring to be greased, and is used to quantitatively squeeze vacuum grease on the annular sealing ring in a uniformly rotating state. The technical solution of the present invention solves the problem that the existing implementation method of applying vacuum grease to metal sealing rings is completely dependent on the pure manual operation of the assembler, which makes it difficult to achieve the requirements of quantitative grease application and uniform coating.

Description

Technical Field

[0001] The invention relates to but is not limited to the technical field of precision assembly process of aviation products, and in particular to a vacuum grease coating device for annular sealing rings. Background Art

[0002] The pressure signal device used in a certain type of helicopter has extremely high requirements for sealing, and one of the processes is to apply vacuum grease to the metal sealing ring.

[0003] At present, the application of vacuum grease to metal sealing rings is a purely manual operation by assemblers, and it is difficult to achieve the requirements of quantitative grease application and uniform application. Summary of the invention

[0004] Purpose of the present invention: An embodiment of the present invention provides a vacuum grease coating device for annular sealing rings to solve the problem that the existing implementation method of coating vacuum grease on metal sealing rings completely relies on pure manual operation by assemblers, which makes it difficult to achieve the requirements of quantitative grease application and uniform coating.

[0005] The technical solution of the present invention: The embodiment of the present invention provides a vacuum grease coating device for an annular sealing ring, comprising: a support and expansion component, an electric rotating disk and a quantitative setter;

[0006] The expansion assembly is sleeved inside the annular sealing ring through its inner ring expansion mechanism, and is used to expand and fix the annular sealing ring, and the inner ring expansion mechanism is contracted through its outer ring contraction mechanism, and is used to disassemble and load the annular sealing ring;

[0007] The support and expansion assembly is installed on the rotating end surface of the electric rotating disk through its chassis, and is used to support, fix and unload the annular sealing ring through the support and expansion assembly, and drive the support and expansion assembly and the annular sealing ring to rotate at a uniform speed through the electric rotating disk;

[0008] The smear brush of the quantitative setting device contacts the working surface of the annular sealing ring to be greased, and is used for quantitatively squeezing the vacuum grease to the annular sealing ring in a uniformly rotating state.

[0009] Optionally, in the vacuum grease coating device for annular sealing ring as described above, the expansion assembly comprises: a disc-shaped bottom plate, an inner ring expansion mechanism and an outer ring contraction mechanism;

[0010] Among them, the inner ring supporting and expanding mechanism includes: a central axis, a plurality of guide rails evenly arranged circumferentially on a disc-shaped chassis, and the plurality of guide rails form a divergent structure pointing from the center to the outer ring, a slider installed on each guide rail one by one through a sliding rod, and a spring is embedded in the end of the sliding rod of each slider, and the spring is located between the inner end face of the corresponding guide rail and the central axis, and is used to apply a radial thrust to the slider, so that the sliders evenly arranged circumferentially provide an expanding force to the annular sealing ring from the inner side thereof to fix the annular sealing ring to be greased.

[0011] Optionally, in the vacuum grease coating device for annular sealing ring as described above, the inner ring expansion mechanism further comprises: a spring stop pin;

[0012] The spring stop pin is fixedly installed on the rod body area of ​​the sliding rod between the central axis and the guide rail. The spring is specifically arranged between the spring stop pin and the central axis, and is used to limit the maximum radial distance of the slider by abutting against the inner end face of the guide rail under the action of the radial thrust applied by the spring to the slider.

[0013] Optionally, in the vacuum grease coating device for annular sealing rings as described above, the outer ring contraction mechanism comprises: a handwheel seat and a handwheel coaxially mounted on the end of the central shaft, and a plurality of pull rods uniformly arranged in the circumferential direction;

[0014] One end of each pull rod is hinged to the slider in the inner ring expansion mechanism, and the other end is hinged to the hand wheel seat, and the hinged end hinged to the hand wheel seat performs a contraction movement toward the central axis as the hand wheel seat rotates;

[0015] The outer ring contraction mechanism is used to drive the handwheel seat to rotate by rotating the handwheel, and the handwheel seat drives the hinged end of the pull rod hinged to it to move, thereby pulling the slider to contract toward one side of the central axis to unload the support and expansion assembly from the inner side of the loaded annular sealing ring.

[0016] Optionally, in the vacuum grease coating device for annular sealing ring as described above,

[0017] One end of each pull rod is hinged to the side end surface of the slider, and the other end is hinged to the hand wheel seat and is located above the sliding rod of the adjacent slider to form a staggered installation structure.

[0018] Optionally, in the vacuum grease coating device for annular sealing ring as described above,

[0019] The top end of the sliding block is arranged as an arc-shaped groove, which is used to match the outer surface of the annular sealing ring for installation.

[0020] Optionally, in the vacuum grease coating device for annular sealing ring as described above,

[0021] The quantitative setting device comprises: a syringe, a smear brush installed at the front end outlet of the syringe, and a push-pull rod installed at the rear end of the syringe, and the interior of the syringe is filled with vacuum grease;

[0022] The quantitative setter is used to drive the push-pull rod through the stepping system to quantitatively extrude the vacuum grease, thereby grease the annular sealing ring rotating at a uniform speed.

[0023] Optionally, the vacuum grease applying device for the annular sealing ring as described above specifically comprises two sets of quantitative setters;

[0024] Two groups of quantitative dispensers are respectively arranged on both sides of the working surface of the annular sealing ring and are used for applying grease to both sides of the working surface at the same time.

[0025] Beneficial effects of the present invention: The embodiment of the present invention provides a vacuum grease coating device for an annular sealing ring, which is mainly composed of a support and expansion component, an electric rotating disk and a quantitative setter; the support and expansion component is used to expand, fix and unload the sealing ring; the electric rotating disk drives the sealing ring to rotate at a uniform speed; the quantitative setter is used to quantitatively extrude the sealing grease. Specifically, the support and expansion component is sleeved inside the annular sealing ring through its inner ring support and expansion mechanism, which is used to expand and fix the annular sealing ring, and the inner ring support and expansion mechanism is contracted through its outer ring contraction mechanism, which is used to disassemble and load the annular sealing ring; the support and expansion component is installed on the rotating end face of the electric rotating disk through its chassis, which is used to expand, fix and unload the annular sealing ring through the support and expansion component, and the support and expansion component and the annular sealing ring are driven by the electric rotating disk to rotate at a uniform speed together. The vacuum grease coating device provided by the embodiment of the present invention is adopted, and the electric rotating disk rotates slowly and uniformly; the push-pull rod motor is driven by a stepping system, and only runs a fixed distance each time, thereby ensuring quantitative extrusion of the sealing grease. In addition, the vacuum grease coating device provided by the embodiment of the present invention is simple and convenient to operate, saves time and effort, and can implement fast and efficient grease coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0027] Figure 1 A schematic structural diagram of a vacuum grease coating device for an annular sealing ring provided in an embodiment of the present invention;

[0028] Figure 2 , which is a schematic structural diagram of the inner ring expansion mechanism in the vacuum grease coating device provided in an embodiment of the present invention;

[0029] Figure 3 , which is a schematic diagram of the structure of the support and expansion assembly in the vacuum grease applying device provided in an embodiment of the present invention;

[0030] Figure 4 As shown, Figure 1 The illustrated embodiment is a schematic structural diagram of a quantitative dispenser in a vacuum grease coating device for an annular sealing ring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0032] The above background technology has explained that the current method of applying vacuum grease to metal sealing rings is difficult to achieve the requirements of quantitative grease application and uniform application because the production and manufacturing department completely relies on pure manual operation by assemblers.

[0033] Based on the production and manufacturing department's requirements for quantitative and uniform grease application on metal sealing rings, the production and manufacturing department has a strong demand to improve old tooling, realize electrification and automation, and requires newly developed tooling to be easy to operate, safe and reliable.

[0034] Based on the above-mentioned needs of the manufacturing department, an embodiment of the present invention provides a vacuum grease coating device for annular sealing rings. The vacuum grease coating device is a semi-automatic electric grease coating equipment designed according to production practice and strong requirements of workers, which can achieve the purpose of quantitative grease application and uniform coating.

[0035] The following is a detailed description of the specific implementation of the vacuum grease coating device for annular sealing rings provided by the embodiment of the present invention in conjunction with the accompanying drawings. The present invention provides the following specific embodiments that can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0036] Figure 1 A schematic diagram of the structure of a vacuum grease coating device for an annular sealing ring provided in an embodiment of the present invention. The main structure of the vacuum grease coating device for an annular sealing ring provided in an embodiment of the present invention may include the following parts: a support and expansion component, an electric rotating disk, and a quantitative setter. The support and expansion component in the embodiment of the present invention may include: an inner ring support and expansion mechanism and an outer ring contraction mechanism; Figure 1 The inner ring expansion mechanism and the outer ring contraction mechanism are shown schematically.

[0037] Reference Figure 1 The vacuum grease coating device shown in the figure has a support and expansion component which is sleeved inside the annular sealing ring through its inner ring support and expansion mechanism, and is used to expand and fix the annular sealing ring. The inner ring support and expansion mechanism is contracted through its outer ring contraction mechanism, and is used to disassemble and load the annular sealing ring.

[0038] The expansion assembly in the embodiment of the present invention is installed on the rotating end surface of the electric rotating disk through its chassis. The annular sealing ring can be expanded, fixed and unloaded by the expansion assembly, and the electric rotating disk can drive the expansion assembly and the annular sealing ring to rotate at a uniform speed.

[0039] The smear brush of the quantitative dosing device in the embodiment of the present invention contacts the working surface of the annular sealing ring to be greased, and is used for quantitatively squeezing the annular sealing ring in a uniformly rotating state.

[0040] In the embodiment of the present invention, on the one hand, based on the expansion component using its inner ring expansion mechanism to expand and fix the annular sealing ring, and installed on the electric rotating disk through the chassis, the annular sealing ring and the expansion component can be regarded as a whole and rotated at a uniform speed with the electric rotating disk; on the other hand, based on the quantitative feeding function of the quantitative setter, the vacuum grease can be squeezed out in a quantitative manner. Combined with the annular sealing ring in the above-mentioned uniformly rotating state, the requirements of quantitative grease application and uniform grease coating can be achieved.

[0041] In one implementation of the present invention, the expansion assembly specifically includes: a disc-shaped chassis, an inner ring expansion mechanism and an outer ring contraction mechanism. The functions of the inner ring expansion mechanism and the outer ring contraction mechanism have been described in the above embodiment, and the specific structures of the inner ring expansion mechanism and the outer ring contraction mechanism are described below.

[0042] like Figure 2 FIG. 1 is a schematic diagram of the structure of the inner ring expansion mechanism in the vacuum grease coating device provided in an embodiment of the present invention. Figure 2 The figure shows the front view of the inner ring expansion mechanism, the side view of some parts, and the assembly relationship of some parts. In this implementation, the inner ring expansion mechanism includes: a central axis, a plurality of guide rails evenly arranged circumferentially on a disc-shaped chassis, and the plurality of guide rails form a divergent structure pointing from the center to the outer ring, a slider installed on each guide rail one by one through a sliding rod, and a spring is embedded at the end of the sliding rod of each slider, and the spring is located between the inner end face of the corresponding guide rail and the central axis, and is used to apply radial thrust to the slider, so that the sliders evenly arranged circumferentially provide expansion force to the annular sealing ring from the inner side thereof to fix the annular sealing ring to be greased. In the inner ring expansion mechanism, the slider can be telescopically moved in the guide rail, and after the sealing ring is installed, the sealing ring is supported by the spring.

[0043] like Figure 2 As shown in the left figure, in a specific implementation of the embodiment of the present invention, the inner ring expansion mechanism also includes: a spring stop pin.

[0044] The spring stop pin is fixedly installed on the rod body area of ​​the sliding rod between the central axis and the guide rail. The spring is specifically arranged between the spring stop pin and the central axis. When the inner ring expansion mechanism is not used to expand the annular sealing ring, under the action of the radial thrust applied by the spring to the slider, the spring stop pin and the inner end face of the guide rail are abutted to limit the maximum radial distance of the slider, thereby ensuring that the sliding rod and the sliding rod will not separate from the guide rail.

[0045] like Figure 3 FIG. 1 is a schematic diagram of the structure of the support and expansion assembly in the vacuum grease coating device provided in an embodiment of the present invention. Figure 3 The inner ring expansion mechanism and the outer ring contraction mechanism are schematically shown, and the front view and side view of the expansion assembly are schematically shown. The outer ring contraction mechanism in the embodiment of the present invention comprises: a handwheel seat and a handwheel coaxially mounted at the end of the central shaft, and a plurality of pull rods uniformly arranged circumferentially.

[0046] One end of each pull rod is hinged to the slider in the inner ring expansion mechanism, and the other end is hinged to the hand wheel seat. The hinged end hinged to the hand wheel seat performs a contraction movement toward the central axis as the hand wheel seat rotates. The outer ring contraction mechanism can compress the spring by turning the hand wheel to reduce the diameter of the entire outer ring, thereby facilitating the removal of the sealing ring.

[0047] The outer ring contraction mechanism in this implementation method can drive the handwheel seat to rotate by turning the handwheel, and the handwheel seat drives the hinged end of the pull rod hinged to it to move, thereby pulling the slider to contract toward one side of the central axis. At this time, the radial distance between each slider is contracted, that is, the slider is separated from the inner end face of the annular sealing ring, so that the support and expansion assembly can be easily unloaded from the inner side of the loaded annular sealing ring.

[0048] In an optional implementation of the embodiment of the present invention, Figure 3 As shown, one end of each pull rod is hinged to the side end surface of the slider, and the other end is hinged to the hand wheel seat and is located above the sliding rod of the adjacent slider, forming a staggered installation structure.

[0049] In a preferred embodiment of the present invention, Figure 3 In the right figure, the top of the slider can be set as an arc-shaped groove, and the inner surface of the arc-shaped groove can be adapted to the outer surface of the annular sealing ring for installation, that is, it adapts to the cross-sectional curvature of the sealing ring.

[0050] In one implementation of the embodiment of the present invention, Figure 4 As shown, Figure 1 The illustrated embodiment is a schematic structural diagram of a quantitative dispenser in a vacuum grease coating device for an annular sealing ring.

[0051] The quantitative setter in this implementation includes: a syringe, a smear brush installed at the front outlet of the syringe, and a push-pull rod installed at the rear end of the syringe, and the syringe is filled with vacuum grease. In actual application, the main body of the quantitative setter is a syringe, which is filled with vacuum grease, the front outlet is equipped with a smear brush with a brush, and the rear end is equipped with a push-pull rod; and the push-pull rod is moved back and forth by a motor through a lead screw.

[0052] Figure 4 The quantitative setter of the structure shown can be driven by the stepping system to push the push-pull rod to quantitatively squeeze the vacuum grease, thereby grease the annular sealing ring rotating at a uniform speed. The working principle is:

[0053] The electric rotating disk can rotate slowly and evenly; the push-pull rod motor is driven by a stepping system and only runs a fixed distance each time, thus ensuring quantitative extrusion of sealing grease.

[0054] The operation process is: rotate the hand wheel to shrink the outer ring of the expansion mechanism, install the sealing ring to be coated with sealing grease, and release the hand wheel to fix the sealing ring; start the electric rotating disk and the stepper motor, and set it so that the stepper motor stops when the rotating disk rotates one circle, and then the rotating disk continues to rotate until the sealant is evenly applied.

[0055] like Figure 1 , which is also a schematic diagram of the working principle of the vacuum grease applying device provided by the embodiment of the present invention. In a preferred implementation of the embodiment of the present invention, two groups of quantitative dispensers are specifically included.

[0056] Two groups of quantitative setters are arranged on both sides of the working surface of the annular sealing ring respectively, and are used to grease both sides of the working surface at the same time; two groups of quantitative setters are used to grease at the same time, and the feed speed and grease output of the two groups of quantitative setters can be controlled, so as to achieve the effect of uniform grease coating on both sides of the annular sealing ring.

[0057] The vacuum grease coating device for annular sealing ring provided by the embodiment of the present invention mainly consists of a support and expansion component, an electric rotating disk and a quantitative setter; the support and expansion component is used to expand, fix and unload the sealing ring; the electric rotating disk drives the sealing ring to rotate at a uniform speed; the quantitative setter is used to quantitatively extrude the sealing grease. Specifically, the support and expansion component is sleeved inside the annular sealing ring through its inner ring support and expansion mechanism, which is used to expand and fix the annular sealing ring, and the inner ring support and expansion mechanism is contracted through its outer ring contraction mechanism, which is used to disassemble and load the annular sealing ring; the support and expansion component is installed on the rotating end face of the electric rotating disk through its chassis, which is used to expand, fix and unload the annular sealing ring through the support and expansion component, and the support and expansion component and the annular sealing ring are driven by the electric rotating disk to rotate at a uniform speed together. The vacuum grease coating device provided by the embodiment of the present invention is adopted, and the electric rotating disk rotates slowly and uniformly; the push-pull rod motor is driven by the stepping system, and only runs a fixed distance each time, so as to ensure the quantitative extrusion of the sealing grease. In addition, the vacuum grease coating device provided by the embodiment of the present invention is simple and convenient to operate, saves time and effort, and can implement fast and efficient grease coating.

[0058] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any technician in the field to which the present invention belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A vacuum grease coating device for an annular sealing ring, characterized in that: include: Support and expansion components, electric rotating disc and quantitative setter; The expansion assembly is sleeved inside the annular sealing ring through its inner ring expansion mechanism, and is used to expand and fix the annular sealing ring, and the inner ring expansion mechanism is contracted through its outer ring contraction mechanism, and is used to disassemble and load the annular sealing ring; The support and expansion assembly is installed on the rotating end surface of the electric rotating disk through its disc-shaped chassis, and is used to support, fix and unload the annular sealing ring through the support and expansion assembly, and drive the support and expansion assembly and the annular sealing ring to rotate at a uniform speed through the electric rotating disk; The smear brush of the quantitative setting device contacts the working surface of the annular sealing ring to be greased, and is used to quantitatively squeeze the vacuum grease to the annular sealing ring in a uniformly rotating state; The expansion assembly comprises: a disc-shaped chassis, an inner ring expansion mechanism and an outer ring contraction mechanism; the inner ring expansion mechanism comprises: a central axis, a plurality of guide rails uniformly arranged on the disc-shaped chassis in the circumferential direction, a slider mounted on each guide rail in a one-to-one correspondence through a sliding rod, a spring nested at the end of the sliding rod of each slider, and a spring stop pin mounted on the sliding rod, so that the spring is arranged between the spring stop pin and the central axis; The outer ring contraction mechanism includes: a handwheel seat and a handwheel coaxially installed at the end of the central axis, and a plurality of pull rods evenly arranged circumferentially; one end of each pull rod is hinged to the slider in the inner ring expansion mechanism, and the other end is hinged to the handwheel seat, and the hinged end hinged to the handwheel seat performs a contraction movement toward the central axis as the handwheel seat rotates.

2. The vacuum grease coating device for annular sealing ring according to claim 1, characterized in that: In the inner ring expansion mechanism, multiple guide rails form a divergent structure with the center pointing to the outer ring. The spring embedded in the end of the sliding rod of each slider is used to apply radial thrust to the slider, so that the sliders evenly arranged circumferentially provide expansion force to the annular sealing ring from the inner side to fix the annular sealing ring to be greased.

3. The vacuum grease coating device for annular sealing ring according to claim 1, characterized in that: In the inner ring expansion mechanism, the spring stop pin is fixedly installed on the rod body area of ​​the sliding rod between the central axis and the guide rail. The spring stop pin is used to limit the maximum radial distance of the slider by abutting against the inner end face of the guide rail under the action of the radial thrust applied by the spring to the slider.

4. The vacuum grease coating device for annular sealing ring according to claim 1, characterized in that: The outer ring contraction mechanism is used to drive the handwheel seat to rotate by rotating the handwheel, and the handwheel seat drives the hinged end of the pull rod hinged to it to move, thereby pulling the slider to contract toward one side of the central axis to unload the support and expansion assembly from the inner side of the loaded annular sealing ring.

5. The vacuum grease coating device for annular sealing ring according to claim 1, characterized in that: One end of each pull rod is hinged to the side end surface of the slider, and the other end is hinged to the hand wheel seat and is located above the sliding rod of the adjacent slider to form a staggered installation structure.

6. The vacuum grease coating device for annular sealing ring according to claim 1, characterized in that: The top end of the sliding block is arranged as an arc-shaped groove, which is used to match the outer surface of the annular sealing ring for installation.

7. The vacuum grease coating device for an annular seal ring according to any one of claims 1 to 6, characterized in that: The quantitative setting device comprises: a syringe, a smear brush installed at the front end outlet of the syringe, and a push-pull rod installed at the rear end of the syringe, and the interior of the syringe is filled with vacuum grease; The quantitative setter is used to drive the push-pull rod through the stepping system to quantitatively extrude the vacuum grease, thereby grease the annular sealing ring rotating at a uniform speed.

8. The vacuum grease coating device for annular sealing ring according to claim 7, characterized in that: Specifically, it includes two groups of quantitative setters; Two groups of quantitative dispensers are respectively arranged on both sides of the working surface of the annular sealing ring and are used for applying grease to both sides of the working surface at the same time.

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