Spring transmission type mechanical sealing element

Abstract

The utility model discloses a spring transmission type mechanical sealing element, and relates to a spring transmission type mechanical sealing element which comprises a first rotating shaft, a first circular ring sleeve is fixedly installed on the outer surface of one side of the first rotating shaft, and a positioning spring is fixedly installed on the outer surface of one side of the first circular ring sleeve. A mounting pipe is fixedly connected to the outer surface of one side of the positioning spring, ejection assemblies are movably mounted at the upper end and the lower end of the mounting pipe, a mounting groove is formed in one side of the mounting pipe, and a static sealing ring is detachably mounted in an inner cavity of the mounting groove. By means of the connecting assembly, connection between the static sealing ring and the movable sealing ring is facilitated, the clamping rod is clamped into the clamping hole, connection stability is improved, the situation of falling off is avoided, disassembly and assembly between the static sealing ring and the movable sealing ring are also facilitated, the static sealing ring is convenient to disassemble through the arranged ejection assembly, and the service life of the static sealing ring and the movable sealing ring is prolonged. The difficulty in taking out the mounting groove due to small caliber is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of spring transmission type mechanical seals, in particular to a spring transmission type mechanical seal. Background Art

[0002] Mechanical seals are one of the basic mechanical components with precise and complex structures. They are key components of various equipment such as pumps, reaction synthesis kettles, turbine compressors, submersible motors, etc. They play the role of sealing the connection between rotating parts and fixed parts. In mechanical processing, there will be two shafts connected. In order to ensure the sealing of the connection between the two shafts, a sealing ring is usually covered at the connection between the two shafts to achieve the effect of sealing and leak prevention.

[0003] During the use of current spring-driven mechanical seals, a single sealing ring is usually used to seal between the two shafts. The sealing effect is average, and the sealing ring is usually stuck in the installation groove. In order to reduce the risk of the sealing ring falling off from the installation groove, the sealing ring is usually clamped very tightly, and the diameter of the installation groove is small. This makes it difficult to pull out the sealing ring when it reaches its service life or remove the sealing ring. In addition, the sealing connection between the dynamic ring and the static ring is not tight, which is prone to slippage, causing medium leakage. Utility Model Content

[0004] The purpose of the present utility model is to provide a spring-driven mechanical seal to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides a spring-driven mechanical seal, including a first rotating shaft, a first annular sleeve is fixedly installed on the outer surface of one side of the first rotating shaft, a positioning spring is fixedly installed on the outer surface of one side of the first annular sleeve, and a mounting tube is fixedly connected to the outer surface of one side of the positioning spring, and ejection components are movably installed at the upper and lower ends of the mounting tube.

[0006] Furthermore, a mounting groove is provided on one side of the mounting tube, a static sealing ring is detachably mounted in the inner cavity of the mounting groove, and a connecting assembly is fixedly mounted on the outer surface of one side of the static sealing ring.

[0007] Furthermore, a dynamic sealing ring is fixedly mounted on an outer surface of one side of the connecting assembly, a second annular sleeve is detachably mounted on an outer wall of the dynamic sealing ring, and a second rotating shaft is fixedly connected to an outer surface of one side of the second annular sleeve.

[0008] Furthermore, the connecting assembly includes a connecting seat, a slot, a connecting bolt, a slot hole, a connecting ring, a connecting block, a reset spring and a clamping rod. Slots are provided on both sides of the inner cavity of the connecting seat, connecting bolts are removably installed on both sides of the connecting seat, slots are provided at the front and rear ends of the connecting seat, a connecting ring is removably installed in the inner cavity of the connecting seat, connecting blocks are fixedly installed on both sides of the connecting ring, reset springs are fixedly installed at the front and rear ends of the connecting ring, and a clamping rod is fixedly connected to one side of the reset spring.

[0009] Furthermore, the ejection assembly includes an adjusting button, a threaded rod, a threaded sleeve and a ejector block, the outer surface of one side of the adjusting button is fixedly connected to the threaded rod, the outer wall of the threaded rod is threadedly connected to the threaded sleeve, and the outer surface of one side of the threaded sleeve is fixedly connected to the ejector block.

[0010] Furthermore, the outer wall of the connecting block is detachably connected to the inner cavity of the card slot, the card rod is detachably connected to the inner cavity of the card hole, the outer wall of the connecting bolt passes through the inner cavity of the card slot and is threadedly connected to one side of the connecting block, and one side of the connecting seat is fixedly connected to one side of the static sealing ring.

[0011] Furthermore, the adjusting button is movably mounted on the upper and lower ends of the mounting tube.

[0012] Furthermore, the top blocks are movably located at both ends of the inner cavity of the installation tube, and the number of the top blocks is two groups.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The connection between the static sealing ring and the dynamic sealing ring is facilitated by the mutual cooperation of the connecting seat, the card slot, the connecting bolt, the card hole, the connecting ring, the connecting block, the return spring and the card rod in the provided connecting assembly. First, the connecting ring is clamped into the connecting seat, and the connecting block is aligned with the card slot. Then, the connecting bolt is passed through the connecting seat to the connecting block to fix the connection between the connecting seat and the connecting block. At the same time, under the action of the return spring, the card rod is clamped into the card hole, which improves the stability of the connection, avoids falling off, and also facilitates the disassembly and installation of the static sealing ring and the dynamic sealing ring.

[0015] The mutual cooperation of the adjusting button, threaded rod, threaded sleeve and ejector block in the ejection assembly facilitates the removal of the static sealing ring. The adjusting button drives the threaded rod to rotate, and then the threaded rod drives the threaded sleeve to move, so that the ejector block pushes one side of the static sealing ring, thereby pushing the static sealing ring out of the installation groove, avoiding the problem that the installation groove has a small diameter, resulting in the sealing ring being unable to be pulled out or being difficult to remove when the service life is reached. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of a spring-driven mechanical seal of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of a spring-driven mechanical seal of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a connection assembly of a spring-driven mechanical seal of the present invention;

[0019] Figure 4 The utility model is a schematic diagram of the ejection component structure of a spring-driven mechanical seal.

[0020] In the figure: 1. first rotating shaft; 2. first circular sleeve; 3. positioning spring; 4. mounting tube; 5. ejector assembly; 6. mounting groove; 7. static sealing ring; 8. connecting assembly; 9. dynamic sealing ring; 10. second circular sleeve; 11. second rotating shaft; 801. connecting seat; 802. slot; 803. connecting bolt; 804. clamping hole; 805. connecting ring; 806. connecting clamping block; 807. reset spring; 808. clamping rod; 501. adjusting button; 502. threaded rod; 503. threaded sleeve; 504. ejector block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] See Figure 1-Figure 2 As shown, a spring-driven mechanical seal comprises a first rotating shaft 1, a first annular sleeve 2 is fixedly mounted on the outer surface of one side of the first rotating shaft 1, a positioning spring 3 is fixedly mounted on the outer surface of one side of the first annular sleeve 2, a mounting tube 4 is fixedly connected to the outer surface of one side of the positioning spring 3, ejection assemblies 5 are movably mounted on the upper and lower ends of the mounting tube 4, a mounting groove 6 is provided on one side of the mounting tube 4, a static sealing ring 7 is detachably mounted on the inner cavity of the mounting groove 6, a connecting assembly 8 is fixedly mounted on the outer surface of one side of the static sealing ring 7, a dynamic sealing ring 9 is fixedly mounted on the outer surface of one side of the connecting assembly 8, a second annular sleeve 10 is detachably mounted on the outer wall of the dynamic sealing ring 9, and a second rotating shaft 11 is fixedly connected to the outer surface of one side of the second annular sleeve 10. The sealing effect is improved by setting a double-layer sealing ring.

[0024] See Figure 3 The connecting assembly 8 includes a connecting seat 801, a slot 802, a connecting bolt 803, a hole 804, a connecting ring 805, a connecting block 806, a return spring 807 and a clamping rod 808. Slots 802 are provided on both sides of the inner cavity of the connecting seat 801, and connecting bolts 803 are detachably installed on both sides of the connecting seat 801. Clamping holes 804 are provided at the front and rear ends of the connecting seat 801. A connecting ring 805 is detachably installed in the inner cavity of the connecting seat 801, and connecting blocks 806 are fixedly installed on both sides of the connecting ring 805. Reset springs 807 are fixedly installed at the front and rear ends of the connecting ring 805. One side of the reset spring 807 is fixedly connected to a clamping rod 808. The outer wall of the connecting block 806 is detachably connected to the inner cavity of the slot 802, and the clamping rod 808 is detachably connected to the inner cavity of the hole 804. The outer wall of the connecting bolt 803 passes through the inner cavity of the slot 802 and the connecting block One side of 806 is threadedly connected, and one side of the connecting seat 801 is fixedly connected to one side of the static sealing ring 7. Through the cooperation of the connecting seat 801, the slot 802, the connecting bolt 803, the card hole 804, the connecting ring 805, the connecting block 806, the return spring 807 and the card rod 808 in the provided connecting assembly 8, the connection between the static sealing ring 7 and the dynamic sealing ring 9 is facilitated. First, the connecting ring 805 is inserted into the connecting seat 801, and the connecting block 806 is aligned with the slot 802. Then, the connecting bolt 803 is passed through the connecting seat 801 to the connecting block 806, so that the connecting seat 801 and the connecting block 806 are fixedly connected. At the same time, under the action of the return spring 807, the card rod 808 is inserted into the card hole 804, which improves the stability of the connection, avoids the occurrence of falling off, and also facilitates the disassembly and installation between the static sealing ring 7 and the dynamic sealing ring 9.

[0025] See Figure 4 The ejection assembly 5 includes an adjusting button 501, a threaded rod 502, a threaded sleeve 503 and a ejection block 504. The outer surface of one side of the adjusting button 501 is fixedly connected to the threaded rod 502, the outer wall of the threaded rod 502 is threadedly connected to the threaded sleeve 503, and the outer surface of one side of the threaded sleeve 503 is fixedly connected to the ejection block 504. The adjusting button 501 is movably mounted on the upper and lower ends of the mounting tube 4, and the ejection blocks 504 are movably located at the two ends of the inner cavity of the mounting tube 4. There are two groups of ejection blocks 504. The mutual cooperation of the adjusting button 501, threaded rod 502, threaded sleeve 503 and top block 504 in the component 5 facilitates the removal of the static sealing ring 7. The adjusting button 501 drives the threaded rod 502 to rotate, and then the threaded rod 502 drives the threaded sleeve 503 to move, so that the top block 504 pushes one side of the static sealing ring 7, thereby pushing the static sealing ring 7 out of the installation groove 6, avoiding the problem that the installation groove 6 has a small diameter, resulting in the sealing ring being unable to be pulled out or being difficult to remove when it reaches its service life.

[0026] Working principle: Through the cooperation of the connecting seat 801, the card slot 802, the connecting bolt 803, the card hole 804, the connecting ring 805, the connecting block 806, the return spring 807 and the card rod 808 in the connecting assembly 8, the connection between the static sealing ring 7 and the dynamic sealing ring 9 is facilitated. First, the connecting ring 805 is inserted into the connecting seat 801, and the connecting block 806 is aligned with the card slot 802. Then, the connecting bolt 803 is passed through the connecting seat 801 to the connecting block 806, so that the connecting seat 801 and the connecting block 806 are fixedly connected. At the same time, under the action of the return spring 807, the card rod 808 is inserted into the card hole 804, which improves The stability of the connection is improved, and the situation of falling off is avoided. It is also convenient for disassembly and installation between the static sealing ring 7 and the dynamic sealing ring 9. The mutual cooperation of the adjusting button 501, the threaded rod 502, the threaded sleeve 503 and the ejector block 504 in the ejector assembly 5 is provided to facilitate the removal of the static sealing ring 7. The adjusting button 501 drives the threaded rod 502 to rotate, and then the threaded rod 502 drives the threaded sleeve 503 to move, so that the ejector block 504 pushes one side of the static sealing ring 7, so that the static sealing ring 7 is pushed out of the installation groove 6, avoiding the problem that the installation groove 6 is small in diameter, resulting in the sealing ring being unable to be pulled out or the sealing ring being difficult to remove when it reaches the service life.

Claims

1. A spring-driven mechanical seal, comprising a first rotating shaft (1), characterized in that: A first annular sleeve (2) is fixedly mounted on the outer surface of one side of the first rotating shaft (1), a positioning spring (3) is fixedly mounted on the outer surface of one side of the first annular sleeve (2), a mounting tube (4) is fixedly connected to the outer surface of one side of the positioning spring (3), and ejection assemblies (5) are movably mounted on both upper and lower ends of the mounting tube (4).

2. A spring-driven mechanical seal according to claim 1, characterized in that: A mounting groove (6) is provided on one side of the mounting tube (4), a static sealing ring (7) is detachably mounted in the inner cavity of the mounting groove (6), and a connecting assembly (8) is fixedly mounted on the outer surface of one side of the static sealing ring (7).

3. A spring-driven mechanical seal according to claim 2, characterized in that: A dynamic sealing ring (9) is fixedly mounted on the outer surface of one side of the connecting assembly (8); a second annular sleeve (10) is detachably mounted on the outer wall of the dynamic sealing ring (9); and a second rotating shaft (11) is fixedly connected to the outer surface of one side of the second annular sleeve (10).

4. A spring-driven mechanical seal according to claim 3, characterized in that: The connecting assembly (8) comprises a connecting seat (801), a clamping slot (802), a connecting bolt (803), a clamping hole (804), a connecting ring (805), a connecting clamping block (806), a reset spring (807) and a clamping rod (808). The inner cavity of the connecting seat (801) is provided with a clamping slot (802) on both sides. The connecting bolts (803) are detachably installed on both sides of the connecting seat (801). The front and rear ends of the connecting seat (801) are provided with a clamping hole (804). The inner cavity of the connecting seat (801) is detachably installed with a connecting ring (805). The connecting clamping blocks (806) are fixedly installed on both sides of the connecting ring (805). The front and rear ends of the connecting ring (805) are fixedly installed with a reset spring (807). One side of the reset spring (807) is fixedly connected to the clamping rod (808).

5. A spring-driven mechanical seal according to claim 4, characterized in that: The ejection assembly (5) comprises an adjusting button (501), a threaded rod (502), a threaded sleeve (503) and an ejection block (504); an outer surface of one side of the adjusting button (501) is fixedly connected to the threaded rod (502); an outer wall of the threaded rod (502) is threadedly connected to the threaded sleeve (503); and an outer surface of one side of the threaded sleeve (503) is fixedly connected to the ejection block (504).

6. A spring-driven mechanical seal according to claim 4, characterized in that: The outer wall of the connecting block (806) is detachably connected to the inner cavity of the card slot (802), the card rod (808) is detachably connected to the inner cavity of the card hole (804), the outer wall of the connecting bolt (803) passes through the inner cavity of the card slot (802) and is threadedly connected to one side of the connecting block (806), and one side of the connecting seat (801) is fixedly connected to one side of the static sealing ring (7).

7. The spring-driven mechanical seal according to claim 5, characterized in that: The regulating knob (501) is movably mounted on the upper and lower ends of the mounting tube (4).

8. The spring-driven mechanical seal according to claim 5, characterized in that: The top blocks (504) are movably located at both ends of the inner cavity of the installation tube (4), and the number of the top blocks (504) is two groups.

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