Sealing ring assembling device and sealing ring assembling method

Abstract

The invention relates to the technical field of sealing ring assembling, and discloses a sealing ring assembling device and a sealing ring assembling method.The assembling device comprises an assembling part, the assembling part comprises a sleeve used for containing an external sealing ring, a working cavity and a pressing part are formed in the sleeve, and the pressing part comprises a pressing rod; a vertical plate is fixedly connected to the outer surface of the circumference of the sleeve, a sliding groove is formed in the vertical plate, and a sliding block connected with the outer end of the pressing rod is slidably connected to the inner wall of the sliding groove. According to the sealing ring assembling device and the sealing ring assembling method, the problems that in the prior art, when a sealing ring is replaced, the direction face of the sealing ring is firstly distinguished, a groove is generally formed in the middle of the sealing ring, one side of the groove is thick, the other side of the groove is thin, then the thick side faces outwards, and the thin side faces inwards can be effectively solved; and finally, the sealing ring is manually and slowly embedded into the assembly hole by means of an auxiliary tool and needs to be pressed by fingers, and the whole assembly process is time-consuming and labor-consuming.

Description

Technical Field

[0001] The invention relates to the technical field of sealing ring assembly, and in particular to a sealing ring assembly device and a sealing ring assembly method. Background Art

[0002] Before installing the seal ring, first make sure the surface of the seal ring installation location is clean and dust-free to prevent impurities from entering and causing poor sealing. Secondly, carefully check whether the seal ring is damaged or deformed. If any problems are found, replace it with a new one in time. Some seal rings have clear installation directions and should be installed correctly according to the instructions to ensure maximum function.

[0003] The assembly of sealing rings is generally done manually. When replacing the sealing ring, first distinguish the direction of the sealing ring. Generally, there is a groove in the middle of the sealing ring, and one side of the groove is thick and the other side is thin. Then, the thick side faces outward and the thin side faces inward. Finally, use auxiliary tools to manually embed the sealing ring into the assembly hole slowly, and press it tightly with your fingers. The overall assembly process is time-consuming and labor-intensive, and the sealing ring is prone to deflection. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a sealing ring assembly device and a sealing ring assembly method, which can effectively solve the problem in the prior art that when replacing the sealing ring, the direction surface of the sealing ring must be distinguished first. Generally, there is a groove in the middle of the sealing ring, and one side of the groove is thick and the other side is thin. Then, the thick side faces outward and the thin side faces inward. Finally, the sealing ring is manually embedded in the assembly hole slowly with the help of auxiliary tools, and it is also necessary to press it tightly with fingers. The overall assembly process is time-consuming and labor-intensive.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The present invention provides a sealing ring assembly device, comprising:

[0009] An assembly part, the assembly part includes a sleeve for placing an external sealing ring, and a working chamber is provided inside the sleeve;

[0010] A clamping part, the clamping part includes a pressure rod, a vertical plate is fixedly connected to the outer surface of the sleeve circumference, a sliding groove is provided inside the vertical plate, and a sliding block connected to the outer end of the pressure rod is slidably connected to the inner wall of the sliding groove;

[0011] The pressure rod is located in the space surrounded by the working cavity, the vertical plate is internally rotatably connected with a screw connected to the internal thread of the slider, and the bottom end of the screw passes through the slider and is rotatably installed inside the sleeve.

[0012] Furthermore, it also includes a rebound part, which includes a sleeve, the bottom end of the sleeve is fixedly connected to the inner wall of the working chamber, the inner wall of the sleeve is slidably connected to a counterweight rod, and the counterweight rod is fixedly connected to a rubber pad at one end away from the sleeve.

[0013] Furthermore, a return spring connected to the outer end of the counterweight rod is fixedly connected to the bottom of the inner wall of the sleeve, and the gravity of the counterweight rod is greater than the elastic force of the return spring.

[0014] Furthermore, an external tube is fixedly connected to the side of the slider, an internal slide rod is slidably connected to the inner wall of the external tube, a strong spring connected to the outer end of the internal slide rod is fixedly connected to the inner wall of the external tube, one end of the internal slide rod away from the external tube is fixedly connected to the outer end of the pressure rod, and a grip rod is fixedly connected to the circumferential outer surface of the internal slide rod.

[0015] Furthermore, a shielding plate is fixedly connected to one end of the sleeve away from the vertical plate, and the diameter of the shielding plate is smaller than the inner diameter of the external sealing ring.

[0016] Furthermore, the outer circumferential surface of the sleeve is fixedly connected to a limit plate, a square groove is provided on the outer circumferential surface of the sleeve, and the lower end of the square groove passes through the limit plate, a push plate is slidably connected to the inner wall of the square groove, and a groove is provided on the top of the push plate.

[0017] Furthermore, a push rack is slidably connected to the outer circumferential surface of the pressure rod, and a protrusion engaged with the inner wall of the groove is fixedly connected to the bottom of the push rack.

[0018] A method for assembling a sealing ring assembly device comprises the following steps:

[0019] S1: Loading the sealing rings, passing the sealing rings to be assembled through the sleeve one by one until multiple sets of sealing rings are loaded on the outer surface of the sleeve, and then resetting the rotating screw to drive the pressure rod to move downward. When the pressure rod begins to contact the outer surface of the sealing ring, it exerts downward pressure on it, and the upper half of the sealing ring is concave downward, and the sealing ring also becomes smaller;

[0020] S2: Align the sealing ring. The deformed sealing ring can be easily inserted into the assembly hole. Fit the undeformed sealing ring on the assembly hole. Align the middle groove of the sealing ring with the assembly hole. Correct the sealing ring to be assembled to the same plane as the assembly hole.

[0021] S3: When assembling the sealing ring, pull back the gripping rod to drive the pressure rod to slide toward the side of the external tube until the pressure rod gradually separates from the outermost group of sealing rings at the end away from the external tube. The outermost sealing ring automatically pops outward and resets under the action of its own elastic force. The deformed and reset sealing ring can automatically and completely engage in the assembly hole.

[0022] S4: Repeat S1 to S3 to assemble the next set of sealing rings.

[0023] Beneficial Effects

[0024] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0025] The present invention is provided with a clamping part. When the sealing rings are evenly arranged on the outer surface of the sleeve circumference, under the action of the pressure rod, "the upper half of the sealing ring is concave downward, and the sealing ring also becomes smaller". The deformed sealing ring can be easily sent into the assembly hole, and the undeformed sealing ring is attached to the assembly hole. The grip rod is manually pulled back to drive the inner sliding rod to slide along the inner wall of the external tube, and the pressure rod is driven to slide to one side of the external tube until the pressure rod is away from one end of the external tube and gradually detaches from the outermost group of sealing rings. The outermost sealing ring automatically pops outward and resets under the action of its own elastic force. Since the undeformed sealing ring has been attached to the assembly hole, the deformed and reset sealing ring can automatically and completely fit on the assembly hole. The assembly process is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a flow chart of a method for using the sealing ring assembly device according to an embodiment of the present invention;

[0028] Figure 2 It is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the clamping part and the external sealing ring in three-dimensional multiple states according to an embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of a three-dimensional multi-angle structure of an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the three-dimensional partial separation of the casing according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the three-dimensional separation of the pressing part in an embodiment of the present invention;

[0033] Figure 7 It is a three-dimensional structural schematic diagram of a sleeve according to an embodiment of the present invention.

[0034] The numbers in the figure represent respectively: 1. Assembly part; 11. Sleeve; 111. Vertical plate; 112. Slide groove; 113. Shielding plate; 114. Limiting plate; 115. Square groove; 116. Push plate; 117. Recess; 12. Working chamber; 2. Clamping part; 21. Pressing rod; 211. Pushing frame; 212. Bump; 22. Sliding block; 221. External tube; 222. Internal sliding rod; 223. Power spring; 224. Grip rod; 23. Screw rod; 3. Rebound part; 31. Sleeve; 32. Counterweight rod; 33. Rubber pad; 34. Reset spring. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention will be further described below in conjunction with the embodiments.

[0037] Example:

[0038] See also Figure 2-Figure 7 The present invention provides a technical solution: a sealing ring assembly device, comprising:

[0039] The assembly part 1 includes a sleeve 11 for placing an external sealing ring, and a working chamber 12 is provided inside the sleeve 11;

[0040] The clamping part 2 includes a pressure rod 21. The pressure rod 21 is hollow in design. A vertical plate 111 is fixedly connected to the outer surface of the sleeve 11. A sliding groove 112 is provided inside the vertical plate 111. A sliding block 22 connected to the outer end of the pressure rod 21 is slidably connected to the inner wall of the sliding groove 112.

[0041] The pressure rod 21 is located in the space surrounded by the working chamber 12 , and the vertical plate 111 is internally rotatably connected to a screw rod 23 which is internally threadedly connected to the slider 22 . The bottom end of the screw rod 23 penetrates the slider 22 and is rotatably installed inside the sleeve 11 .

[0042] It also includes a rebound part 3, which includes a sleeve 31. The bottom end of the sleeve 31 is fixedly connected to the inner wall of the working chamber 12. A counterweight rod 32 is slidably connected to the inner wall of the sleeve 31. The end of the counterweight rod 32 away from the sleeve 31 is fixedly connected to a rubber pad 33.

[0043] A return spring 34 connected to the outer end of the counterweight rod 32 is fixedly connected to the bottom of the inner wall of the sleeve 31 , and the gravity of the counterweight rod 32 is greater than the elastic force of the return spring 34 .

[0044] An external tube 221 is fixedly connected to the side of the slider 22, an internal slide rod 222 is slidably connected to the inner wall of the external tube 221, a strong spring 223 connected to the outer end of the internal slide rod 222 is fixedly connected to the inner wall of the external tube 221, one end of the internal slide rod 222 away from the external tube 221 is fixedly connected to the outer end of the pressure rod 21, and a grip rod 224 is fixedly connected to the circumferential outer surface of the internal slide rod 222.

[0045] One end of the sleeve 11 away from the vertical plate 111 is fixedly connected with a shielding plate 113 , and the diameter of the shielding plate 113 is smaller than the inner diameter of the external sealing ring.

[0046] The outer circumferential surface of the sleeve 11 is fixedly connected to a limit plate 114 , a square groove 115 is provided on the outer circumferential surface of the sleeve 11 , and the lower end of the square groove 115 passes through the limit plate 114 , a push plate 116 is slidably connected to the inner wall of the square groove 115 , and a groove 117 is provided on the top of the push plate 116 .

[0047] The outer circumferential surface of the pressing rod 21 is slidably connected with a push frame 211, and the bottom of the push frame 211 is fixedly connected with a protrusion 212 engaged with the inner wall of the groove 117, so as to facilitate the separation and combination of the two.

[0048] refer to Figure 2-7 The assembly of the sealing ring is generally done manually. When replacing the sealing ring, first distinguish the direction of the sealing ring. Generally, there is a groove in the middle of the sealing ring, and one side of the groove is thick and the other side is thin. Then the thick side faces outward and the thin side faces inward. Finally, with the help of auxiliary tools, the sealing ring is slowly embedded in the assembly hole manually, and it needs to be pressed by fingers. The overall assembly process is time-consuming and laborious, and the sealing ring is prone to deflection.

[0049] In order to overcome the above-mentioned defects, the present invention designs a sealing ring assembly device.

[0050] Filling of sealing ring:

[0051] Initially, the vertical plate 111 is rotated to a vertical state, and then the screw rod 23 on the clamping part 2 is manually rotated. The screw rod 23 rotates around the vertical plate 111 and the inside of the sleeve 11. Under the action of the screw rod 23, the slider 22 is driven to slide upward along the inner wall of the slide groove 112, driving the external tube 221, the inner slide rod 222, the strong spring 223, the grip rod 224 and the pressure rod 21 to move upward synchronously until the slider 22 slides to the top of the inner wall of the slide groove 112. At this time, the distance between the pressure rod 21 and the central axis of the sleeve 11 is greater than the radius of the sleeve 11 itself. Subsequently, the sealing rings to be assembled are passed through the sleeve 11 one by one. The diameter of the baffle plate 113 is smaller than the inner diameter of the external sealing ring, so the baffle plate 113 does not interfere with the loading of the sealing ring. After multiple groups of sealing rings are loaded on the circumferential outer surface of the sleeve 11, the first group of loaded sealing rings fits tightly against the outer surface of the limiting plate 114, and the sealing rings fit tightly against each other (the sealing rings are in a normal circular state, and the circumferential outer surface of the sealing rings is close to the circumferential outer surface of the pressure rod 21). Next, the screw rod 23 is manually reset to drive the slider 22 to slide downward along the inner wall of the slide groove 112, driving the external tube 221, the inner slide rod 222, the strong spring 223, the grip rod 224 and the pressure rod 21 to move downward synchronously. The downward pressure rod 21 begins to contact the outer surface of the sealing ring circumference and exerts downward pressure on it, driving the upper half of the sealing ring to sag downward. At the same time, the sealing ring also becomes smaller until the slider 22 slides to the bottom of the inner wall of the slide groove 112. At this time, the sealing ring has a maximum deformation. The deformed sealing ring is located between the limit plate 114 and the shield plate 113. The shield plate 113 limits it to prevent the deformed sealing ring from automatically detaching.

[0052] Assembly of sealing ring:

[0053] When the sealing rings are evenly arranged on the outer circumferential surface of the sleeve 11, under the action of the pressure rod 21, "the upper half of the sealing ring is sunken downward, and the sealing ring also becomes smaller". At this time, the deformed sealing ring can be easily sent into the assembly hole, and the undeformed sealing ring is attached to the assembly hole (the middle groove of the sealing ring is aligned with the assembly hole), and the sealing ring to be assembled is corrected to be in the same plane as the assembly hole. Then, the grip rod 224 is manually pulled back to drive the inner slide rod 222 to slide along the inner wall of the external tube 221. The strong spring 223 is compressed and elastically deformed, driving the pressure rod 21 to slide toward the side of the external tube 221 until the pressure rod 21 is away from the end of the external tube 221 and gradually separates from the outermost group of sealing rings. The outermost sealing ring automatically pops outward and resets under the action of its own elastic force. Since the undeformed sealing ring is already attached to the assembly hole, the deformed and reset sealing ring can automatically and completely fit on the assembly hole. The assembly process is simple to operate and avoids the sealing ring from being easily skewed.

[0054] In summary, the present invention has the following advantages:

[0055] Advantage 1: under the action of the pressure rod 21, "the upper half of the sealing ring is sunken downward, and the sealing ring becomes smaller", which makes it convenient for the sealing ring to be quickly sent into the assembly hole, and the position of the sealing ring can be adjusted at will.

[0056] Advantage 2: Pulling back the gripping rod 224 drives the outer end of the pressing rod 21 to gradually separate from the outermost group of sealing rings, and utilizing the elastic force of the sealing rings themselves to achieve automatic assembly with high assembly precision, saving time and effort.

[0057] Advantage three: multiple sets of sealing rings are sleeved on the sleeve 11, which can realize continuous automatic assembly of sealing rings, greatly improving efficiency. When the outermost set of sealing rings is assembled, the push frame 211 is manually pushed to slide along the outer surface of the circumference of the pressure rod 21, driving the protrusion 212 and the push plate 116 to slide synchronously, and the push plate 116 drives multiple sets of sealing rings to slide forward synchronously until the sealing rings are re-attached to the outer surface of the shielding plate 113, and the next set of sealing rings is assembled.

[0058] Advantage 4: When the vertical plate 111 is in a vertical state, since the gravity of the counterweight rod 32 is greater than the elastic force of the reset spring 34, the counterweight rod 32 is completely hidden in the sleeve 31 (the reset spring 34 is in a compressed state). When the sealing ring is assembled, in order to avoid long-term deformation of the sealing ring and the inability to quickly reset it in the first time, in the present invention, it is only necessary to rotate the vertical plate 111 to a horizontal state during assembly. At this time, the gravity of the counterweight rod 32 has no component in the horizontal direction. Under the elastic force of the reset spring 34, the rubber pad 33 is always attached to the inner surface of the deformed sealing ring. When the sealing ring needs to be assembled, the sleeve 31, the counterweight rod 32, the rubber pad 33 and the reset spring 34 in the horizontal state can help the deformed sealing ring to quickly recover in the first time (in the vertical state, the counterweight rod 32 and the rubber pad 33 are reset and do not interfere with the loading of the sealing ring).

[0059] See also Figure 1 Another aspect of the present invention provides an assembly method of a sealing ring assembly device, comprising the following steps:

[0060] S1: Loading the sealing rings, passing the sealing rings to be assembled through the sleeve 11 one by one, until the outer surface of the sleeve 11 is loaded with multiple sets of sealing rings, resetting the rotating screw 23, driving the pressure rod 21 to move downward, when the pressure rod 21 begins to contact the outer surface of the sealing ring, and exerts downward pressure on it, the upper half of the sealing ring is concave downward, and the sealing ring also becomes smaller;

[0061] S2: Align the sealing ring. The deformed sealing ring can be easily inserted into the assembly hole. Fit the undeformed sealing ring on the assembly hole. Align the middle groove of the sealing ring with the assembly hole. Correct the sealing ring to be assembled to the same plane as the assembly hole.

[0062] S3: Assembling the sealing ring, pull back the gripping rod 224, drive the pressure rod 21 to slide toward the side of the external tube 221, until the end of the pressure rod 21 away from the external tube 221 gradually separates from the outermost group of sealing rings, and the outermost sealing ring automatically pops outward and resets under the action of its own elastic force, and the deformed and reset sealing ring can automatically and completely engage in the assembly hole;

[0063] S4: Repeat S1 to S3 to assemble the next set of sealing rings.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sealing ring assembly device, characterized in that: include: An assembly part, the assembly part includes a sleeve for placing an external sealing ring, and a working chamber is provided inside the sleeve; A clamping part, the clamping part includes a pressure rod, a vertical plate is fixedly connected to the outer surface of the sleeve circumference, a sliding groove is provided inside the vertical plate, and a sliding block connected to the outer end of the pressure rod is slidably connected to the inner wall of the sliding groove; The pressure rod is located in the space surrounded by the working cavity, the vertical plate is internally rotatably connected with a screw connected to the internal thread of the slider, and the bottom end of the screw passes through the slider and is rotatably installed inside the sleeve.

2. A sealing ring assembly device according to claim 1, characterized in that: It also includes a rebound part, which includes a sleeve, the bottom end of the sleeve is fixedly connected to the inner wall of the working chamber, the inner wall of the sleeve is slidably connected to a counterweight rod, and the end of the counterweight rod away from the sleeve is fixedly connected to a rubber pad.

3. A sealing ring assembly device according to claim 2, characterized in that: A return spring connected to the outer end of the counterweight rod is fixedly connected to the bottom of the inner wall of the sleeve, and the gravity of the counterweight rod is greater than the elastic force of the return spring.

4. A sealing ring assembly device according to claim 3, characterized in that: The side of the slider is fixedly connected to an external tube, the inner wall of the external tube is slidably connected to an inner slide rod, the inner wall of the external tube is fixedly connected to a strong spring connected to the outer end of the inner slide rod, one end of the inner slide rod away from the external tube is fixedly connected to the outer end of the pressure rod, and the outer surface of the circumference of the inner slide rod is fixedly connected to a grip rod.

5. A sealing ring assembly device according to claim 4, characterized in that: A shielding plate is fixedly connected to one end of the sleeve away from the vertical plate, and the diameter of the shielding plate is smaller than the inner diameter of the external sealing ring.

6. A sealing ring assembly device according to claim 5, characterized in that: The outer circumferential surface of the sleeve is fixedly connected to a limiting plate, the outer circumferential surface of the sleeve is provided with a square groove, and the lower end of the square groove penetrates the limiting plate, the inner wall of the square groove is slidably connected to a push plate, and the top of the push plate is provided with a groove.

7. A sealing ring assembly device according to claim 6, characterized in that: The outer circumferential surface of the pressure rod is slidably connected with a push frame, and the bottom of the push frame is fixedly connected with a protrusion engaged with the inner wall of the groove.

8. The method for assembling a sealing ring assembly device according to claim 7, characterized in that: The steps include: S1: Loading the sealing rings, passing the sealing rings to be assembled through the sleeve one by one until multiple sets of sealing rings are loaded on the outer surface of the sleeve, and then resetting the rotating screw to drive the pressure rod to move downward. When the pressure rod begins to contact the outer surface of the sealing ring, it exerts downward pressure on it, and the upper half of the sealing ring is concave downward, and the sealing ring also becomes smaller; S2: Align the sealing ring. The deformed sealing ring can be easily inserted into the assembly hole. Fit the undeformed sealing ring on the assembly hole. Align the middle groove of the sealing ring with the assembly hole. Correct the sealing ring to be assembled to the same plane as the assembly hole. S3: When assembling the sealing ring, pull back the gripping rod to drive the pressure rod to slide toward the side of the external tube until the pressure rod gradually separates from the outermost group of sealing rings at the end away from the external tube. The outermost sealing ring automatically pops outward and resets under the action of its own elastic force. The deformed and reset sealing ring can automatically and completely engage in the assembly hole. S4: Repeat S1 to S3 to assemble the next set of sealing rings.

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