Piston lantern ring device

Abstract

The utility model relates to the technical field of piston installation, in particular to a piston ring sleeving device which comprises a workbench, a clamping assembly and a pushing assembly. The pushing assembly is arranged in the middle of the workbench, and an expansion assembly which extends to the position above the pushing assembly and expands the lantern ring in the using state is arranged in the middle of the pushing assembly and located on the upper end face of the middle of the workbench; the clamping assembly is installed at the top end of the workbench and located over the expansion assembly. In the process that the pushing assembly drives the lantern ring to move towards the piston along the expansion assembly, the pushing force of the pushing assembly is matched with the shape of the expansion assembly, the inner diameter of the lantern ring is gradually expanded to be matched with the outer diameter of the piston, it is ensured that the lantern ring is stably embedded into the sealing groove, and connection between the piston and the lantern ring is convenient and fast; and the mounting efficiency of the piston and the lantern ring is improved.

Description

Technical Field

[0001] This utility model relates to the field of piston installation technology, specifically to a piston ring device. Background Technology

[0002] A piston ring is a type of elastic metal ring that expands outward and embeds itself inside the piston groove.

[0003] Chinese patent document CN208083800U discloses a piston ring device, including a hollow base with a support leg at the lower end and a door on one side. A worktable is fixedly connected to the upper end of the base, and a ring positioning cylinder is provided on the worktable. A pressing sleeve is provided inside the ring positioning cylinder, and a piston support plate is provided inside the pressing sleeve. An ejection device is provided on the piston support plate corresponding to the worktable. A clamping device is provided on the worktable outside the pressing sleeve. An inverted L-shaped support arm is also fixedly installed on the worktable. A pressing power mechanism is provided through the upper end of the support arm, and a pressing head is detachably installed at the output end of the pressing power mechanism. An LCD screen is provided on one side of the support arm, and a PLC controller is provided inside the base corresponding to the LCD screen, the pressing power mechanism, and the clamping device.

[0004] However, in the above scheme, the collar is positioned by the collar positioning cylinder and pressed into the collar by the press-fitting power mechanism, so that the collar is installed in the sealing groove on the piston. However, since the inner diameter of the collar is smaller than the outer diameter of the piston rod and the piston rod is cylindrical, the collar will block the piston rod end face when directly fitted into the mounting groove on the piston rod, which makes installation difficult and easily damages the collar. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a piston ring device.

[0006] The technical solution of this utility model is: a piston ring device, including a worktable, a clamping assembly and a pushing assembly;

[0007] The pushing component is located in the middle of the worktable, and the upper surface of the pushing component in the middle of the worktable is provided with an expansion component that extends above the pushing component and expands the collar in the use state;

[0008] The clamping assembly is mounted on the top of the worktable and directly above the expansion assembly.

[0009] Preferably, the actuating assembly includes a connecting cylinder and a second telescopic rod;

[0010] The connecting cylinder is installed on the upper middle surface of the workbench and has a through hole in the middle;

[0011] The number of second telescopic rods is at least one. The second telescopic rod is located on the lower middle end face of the workbench and its output end extends to the upper middle end face of the workbench and connects with the connecting cylinder.

[0012] Preferably, a limiting ring is provided at the top and edge of the connecting cylinder.

[0013] Preferably, the expansion assembly includes a first telescopic rod and a truncated cone;

[0014] The first telescopic rod is installed in the through hole of the connecting cylinder;

[0015] The truncated cone is installed at the top of the first telescopic rod and is located above the middle of the connecting cylinder.

[0016] Preferably, the top of the truncated cone is provided with a sleeve, which is fitted onto the outside of the bottom end of the piston.

[0017] Preferably, the clamping assembly includes a connecting block, a pressing block, a lead screw, and a rotating handle;

[0018] The connecting block is installed on the top side of the workbench;

[0019] The lead screw is rotatably mounted on the connecting block;

[0020] The pressing block is threaded onto the outside of the lead screw and fits snugly against the connecting block;

[0021] The swivel is installed at the end of the lead screw.

[0022] Preferably, the surfaces where the connecting block and the pressing block are connected are provided with mounting grooves, and the size of the mounting grooves is arranged to match the position of the connecting hole of the piston.

[0023] Preferably, a limit rod is provided on the inner side of both mounting slots, and the limit rod is inserted into the connecting hole of the piston.

[0024] Preferably, the side of the connecting block is provided with a sliding rod that passes through the pressing block, and the sliding rod is slidably connected to the pressing block.

[0025] Preferably, both the connecting block and the pressing block have notches at their bottom ends, and the notches are arranged to match the dimensions of the limiting ring.

[0026] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0027] This invention, through the pushing component driving the collar along the expansion component towards the piston, allows the pushing force of the pushing component to match the shape of the expansion component, gradually expanding the inner diameter of the collar to match the outer diameter of the piston, ensuring that the collar is firmly embedded in the sealing groove, making the connection between the piston and the collar more convenient, and improving the installation efficiency of the piston and the collar. Attached Figure Description

[0028] Figure 1-2 All of these are perspective views of one embodiment of the present utility model.

[0029] Figure 3 This is a schematic diagram of the clamping component structure in one embodiment of the present invention.

[0030] Figure 4 This is a cross-sectional schematic diagram of the pushing component structure in one embodiment of the present invention.

[0031] Reference numerals in the attached drawings: 1. Workbench; 2. Connecting cylinder; 3. Limiting ring; 4. First telescopic rod; 5. Frustum; 6. Sleeve; 7. Connecting block; 8. Pressing block; 9. Slide rod; 10. Lead screw; 11. Rotary handle; 12. Piston; 13. Notch; 14. Second telescopic rod; 15. Mounting groove; 16. Limiting rod. Detailed Implementation

[0032] Example 1

[0033] like Figure 1-4 As shown, the present invention proposes a piston ring device, including a worktable 1, a clamping assembly and a pushing assembly;

[0034] The pushing component is located in the middle of the worktable 1, and the upper surface of the pushing component in the middle of the worktable 1 is provided with an expansion component that extends above the pushing component and expands the collar in the use state;

[0035] The clamping assembly is installed at the top of the worktable 1 and directly above the expansion assembly, and is used to clamp and fix the piston 12 during use.

[0036] In this embodiment, the piston is placed in the clamping assembly, and the clamping assembly clamps and fixes the piston at the connection holes on both sides. The top of the push assembly is pushed and fitted onto the outer side of the bottom of the expansion assembly. At the same time, the top of the expansion assembly is moved to the bottom of the piston 12 and fitted onto the outer side of the piston 12. The push assembly is then activated, causing the push assembly to move the collar upward. When the collar moves to the middle of the expansion assembly, the inner wall of the collar fits snugly against the middle of the expansion assembly. The continuous pushing force of the push assembly, combined with the shape of the expansion assembly, expands the inner diameter of the collar and moves the collar to the piston sealing groove. Simultaneously, the collar springs back and fits tightly into the piston sealing groove, making the connection between the piston and the collar more convenient and improving the installation efficiency of the piston and the collar.

[0037] Example 2

[0038] like Figure 4 As shown, the piston ring device proposed in this utility model differs from Embodiment 1 in that the pushing component includes a connecting cylinder 2 and a second telescopic rod 14.

[0039] The connecting cylinder 2 is installed on the upper middle surface of the workbench 1 and has a through hole in the middle;

[0040] The number of second telescopic rods 14 is at least one. The second telescopic rod 14 is located on the lower middle end face of the workbench 1 and its output end extends to the upper middle end face of the workbench 1 and is connected to the connecting cylinder 2.

[0041] In an optional embodiment, a limiting ring 3 is provided at the top end and edge of the connecting cylinder 2 to limit the position of the collar at the top end of the connecting cylinder 2 during use, so as to prevent the collar from falling off and moving into the through hole in the middle of the connecting cylinder 2.

[0042] In this embodiment, the connecting cylinder 2 supports the collar and the limiting ring 3 effectively positions the collar. At the same time, the output end of the second telescopic rod 14 applies a thrust, causing the second telescopic rod 14 to drive the collar up and down through the connecting cylinder 2. This ensures that the collar moves stably along the outside of the expansion assembly and that the inner diameter of the collar gradually expands during the movement until the collar is larger than the outer diameter of the piston. This also ensures that the collar position matches the sealing groove position, ensuring that the collar is securely embedded in the sealing groove.

[0043] Example 3

[0044] like Figure 4 As shown, the piston ring device proposed in this utility model differs from Embodiment 1 in that the expansion assembly includes a first telescopic rod 4 and a truncated cone 5.

[0045] The first telescopic rod 4 is installed in the through hole of the connecting cylinder 2;

[0046] The truncated cone 5 is installed at the top of the first telescopic rod 4 and above the middle of the connecting cylinder 2. The two ends of the truncated cone 5 are vertically coaxial to prevent the collar from shifting.

[0047] In an optional embodiment, a sleeve 6 is provided at the top of the truncated cone 5. The sleeve 6 is sleeved on the outside of the bottom end of the piston 12. The thickness of the sleeve 6 is 1 mm. The inner diameter of the sleeve 6 is arranged to match the outer diameter of the piston 12. It is used to wrap the piston 12 during use, so that the collar moves along the outside of the sleeve 6 to the outside of the sealing groove of the piston 12 during the upward movement, avoiding friction between the piston and the collar and preventing scratches on the piston.

[0048] In this embodiment, the first telescopic rod 4 drives the truncated cone 5 to connect with the bottom end of the piston 12, and the sleeve 6 is sleeved on the outside of the piston 12, with the top end of the sleeve 6 flush with the bottom end of the sealing groove of the piston 12. At the same time, guided by the truncated cone 5, when the collar moves to the top of the truncated cone 5, the piston and the collar are arranged coaxially. When moving towards the sleeve 6, the cooperation between the truncated cone 5 and the sleeve 6 gradually expands the inner diameter of the collar to match the outer diameter of the piston, ensuring that the collar is firmly embedded in the sealing groove.

[0049] Example 4

[0050] like Figure 3 As shown, the piston ring device proposed in this utility model differs from the first embodiment in that the clamping assembly includes a connecting block 7, a pressing block 8, a lead screw 10, and a rotating handle 11.

[0051] Connecting block 7 is installed on the top side of workbench 1;

[0052] The lead screw 10 is rotatably mounted on the connecting block 7;

[0053] The pressing block 8 is threaded onto the outside of the lead screw 10 and is fitted into the connecting block 7;

[0054] The handle 11 is installed at the end of the lead screw 10.

[0055] In an optional embodiment, the surfaces where the connecting block 7 and the pressing block 8 are connected are provided with mounting grooves 15. The size of the mounting grooves 15 is arranged to match the position of the connecting hole of the piston 12, so that the connecting block 7, the pressing block 8 and the piston 12 can be tightly connected through the mounting grooves 15 during use, so that the positioning of the piston 12 is more accurate.

[0056] In an optional embodiment, a limiting rod 16 is provided on the inner side of each of the two mounting slots 15. The limiting rod 16 is inserted into the connecting hole of the piston 12 to further improve the stability of the piston 12 when it is clamped and fixed during use.

[0057] In an optional embodiment, the side of the connecting block 7 is provided with a slide rod 9 that passes through the pressing block 8, and the slide rod 9 is slidably connected to the pressing block 8, so that the pressing block 8 can slide on the slide rod 9 during use, thereby supporting the pressing block 8.

[0058] In an optional embodiment, both the bottom ends of the connecting block 7 and the pressing block 8 are provided with notches 13. The notches 13 are arranged in accordance with the size of the limiting ring 3 to avoid the limiting ring 3 during use, so as to prevent the limiting ring 3 from contacting the connecting block 7 and the pressing block 8 when the connecting cylinder 2 drives the collar to move upward, thus preventing the collar from being unable to move to the predetermined position.

[0059] In this embodiment, by placing the piston 12 in the mounting groove 15 on the side of the connecting block 7 and inserting a limiting rod 16 into the connecting hole on one side of the piston 12, while rotating the handle 11, the handle 11 drives the lead screw 10 to rotate on the connecting block 7. The lead screw 10 is threadedly connected to the pressing block 8 and slidably connected to the slide rod 9, so that the lead screw 10 drives the pressing block 8 to move towards the connecting block 7. This causes the mounting groove 15 on the side of the pressing block 8 to wrap around the other side of the piston 12, and the limiting rod 16 on the side of the pressing block 8 to be inserted into the connecting hole on the other side of the piston 12, ensuring that the piston 12 is installed firmly and preventing displacement during use, thereby achieving precise docking between the collar and the piston.

[0060] In this invention, the piston 12 is placed in the mounting groove 15 on the side of the connecting block 7, and a limiting rod 16 is inserted into the connecting hole on one side of the piston 12. Simultaneously, the rotating handle 11 is rotated, causing the lead screw 10 to rotate on the connecting block 7. The lead screw 10 is threadedly connected to the pressing block 8 and slidably connected to the sliding rod 9, causing the lead screw 10 to move the pressing block 8 towards the connecting block 7. This allows the mounting groove 15 on the side of the pressing block 8 to enclose the other side of the piston 12, and the limiting rod 16 on the side of the pressing block 8 is inserted into the connecting hole on the other side of the piston 12, ensuring the piston 12 is securely installed. Simultaneously, the first telescopic rod 4 moves the truncated cone 5 upwards, causing the sleeve 6 to be fitted onto the outside of the piston 12. The collar is placed at the top of the connecting cylinder 2 and sleeved on the outside of the first telescopic rod 4. At the same time, the output end of the second telescopic rod 14 applies a thrust, causing the second telescopic rod 14 to drive the collar to move upward through the connecting cylinder 2. During the movement, the truncated cone 5 adjusts the position of the collar so that when the collar moves to the top of the truncated cone 5, the piston and the collar are arranged coaxially. As it moves towards the sleeve 6, the cooperation between the truncated cone 5 and the sleeve 6 gradually expands the inner diameter of the collar to match the outer diameter of the piston. At the same time, the connecting cylinder 2 drives the collar to continue moving upward, placing the collar at the sealing groove of the piston 12. The collar rebounds and is installed in the sealing groove due to its own characteristics, making the connection between the piston and the collar more convenient and improving the installation efficiency of the piston and the collar.

[0061] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A piston ring device, characterized in that, Includes a worktable (1), a clamping assembly, and a pushing assembly; The push component is located in the middle of the worktable (1), and the push component is located in the middle of the upper surface of the middle of the worktable (1), which extends to the top of the push component and expands the collar in the use state; The clamping assembly is mounted on the top of the worktable (1) and is located directly above the expansion assembly.

2. The piston ring device according to claim 1, characterized in that, The actuation assembly includes a connecting cylinder (2) and a second telescopic rod (14); The connecting cylinder (2) is installed on the upper end face of the middle part of the workbench (1) and has a through hole in the middle; The number of second telescopic rods (14) is at least one. The second telescopic rod (14) is set on the lower middle end face of the workbench (1) and the output end extends to the upper middle end face of the workbench (1) and connects to the connecting cylinder (2).

3. The piston ring device according to claim 2, characterized in that, A limit ring (3) is provided at the top and edge of the connecting cylinder (2).

4. A piston ring device according to claim 2, characterized in that, The expansion assembly includes a first telescopic rod (4) and a truncated cone (5); The first telescopic rod (4) is installed in the through hole of the connecting cylinder (2); The truncated cone (5) is installed at the top of the first telescopic rod (4) and located above the middle of the connecting cylinder (2).

5. A piston ring device according to claim 4, characterized in that, The top of the truncated cone (5) is provided with a sleeve (6), which is fitted on the outside of the bottom end of the piston (12).

6. A piston ring device according to claim 3, characterized in that, The clamping assembly includes a connecting block (7), a pressing block (8), a lead screw (10), and a rotating handle (11); The connecting block (7) is installed on the top side of the workbench (1); The lead screw (10) is rotatably mounted on the connecting block (7); The pressing block (8) is threaded onto the outside of the lead screw (10) and fits into the connecting block (7); The handle (11) is installed at the end of the lead screw (10).

7. A piston ring device according to claim 6, characterized in that, The surfaces where the connecting block (7) and the pressing block (8) are connected are provided with mounting grooves (15), and the size of the mounting grooves (15) is arranged to match the position of the connecting hole of the piston (12).

8. A piston ring device according to claim 7, characterized in that, Limiting rods (16) are provided on the inner side of both mounting slots (15), and the limiting rods (16) are inserted into the connecting holes of the piston (12).

9. A piston ring device according to claim 6, characterized in that, The side of the connecting block (7) is provided with a slide rod (9) that passes through the pressing block (8), and the slide rod (9) is slidably connected to the pressing block (8).

10. A piston ring device according to claim 6, characterized in that, Both the connecting block (7) and the pressing block (8) have notches (13) at their bottom ends, and the notches (13) are arranged in accordance with the dimensions of the limiting ring (3).

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