A grinding device for machining mechanical seals

Abstract

The utility model discloses a grinding device for mechanical seal processing, which belongs to the technical field of mechanical seal processing, comprising a workbench, a fixing component for clamping and fixing the mechanical seal is slidably connected to the top of the workbench, a threaded rod for driving the fixing component to move is threadedly connected to the inner cavity of the fixing component, a grinding component for grinding the mechanical seal is fixedly installed at one end of the fixing component away from the threaded rod, and the grinding component comprises a rotating gear, an arc rod is rotatably connected to the outer wall of the rotating gear, and a grinding block is clamped on the outer wall of the arc rod; when the utility model is used, a motor is driven to drive the rotating gear to rotate through its output shaft, and the arc rod provided inside the rotating gear is used to push a push rod, a connecting rod, the arc rod and a grinding block to move and adjust in a limiting groove toward the end away from the rotating gear, so that the grinding block abuts against the inside of the mechanical seal, thereby enabling the device to grind the inside of circular mechanical seals of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seal processing, in particular to a grinding device used for mechanical seal processing. Background Art

[0002] A mechanical seal is a device installed and operated in pump equipment that acts as a dynamic seal to prevent the liquid medium in the volute of the pump from flowing out of the pump through the pump shaft.

[0003] A Chinese patent discloses a grinding device for mechanical seal processing (publication number CN217045701U), which includes a motor, a sliding rod arranged in a limiting slide groove, the sliding rod is fixed to the support bar by a fastening nut and an anti-slip gasket, the lower end of the sliding rod is connected to a first connecting head, the lower end of the first connecting head is provided with a connecting tube, the outer wall of the connecting tube is provided with a grinding paper tube, the lower end of the connecting tube is provided with a second connecting head, and the grinding paper tube grinds the surface of the mechanical seal. The utility model is a grinding device for mechanical seal processing, the grinding paper tube rotates with the central axis of the mechanical seal to be polished, so that it grinds the surface of the mechanical seal to be polished, because the grinding paper tube is sandpaper with decreasing particle size from top to bottom, it can be selected according to actual needs, when the diameter of the mechanical seal to be polished is small, the fastening nut can be loosened to adjust the position of the sliding rod, and it can be adjusted according to the diameter of the mechanical seal to be polished.

[0004] Therefore, based on the above search and in combination with the existing ones, when the above device is in use, because the polishing paper tube is cylindrical, it is impossible to polish the inside of some circular mechanical seals. As a result, when the inside of the circular mechanical seal needs to be polished, other equipment needs to be used to process the circular mechanical seal, which reduces the scope of application of the above device. Utility Model Content

[0005] The purpose of the utility model is to provide a grinding device for machining mechanical seals to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A grinding device for machining mechanical seals, comprising a workbench, a fixing assembly for clamping and fixing the mechanical seals being slidably connected to the top of the workbench, a threaded rod for driving the fixing assembly to move being threadedly connected to the inner cavity of the fixing assembly, and a grinding assembly for grinding the mechanical seals being fixedly mounted on one end of the fixing assembly away from the threaded rod;

[0008] The grinding assembly comprises a rotating gear, the outer wall of the rotating gear is rotatably connected with an arc rod, and the outer wall of the arc rod is clamped with a grinding block.

[0009] As a further solution of the utility model, a push rod for pushing the arc rod to move is slidably connected inside the rotating gear, a pillar is rotatably connected to the outer wall of the rotating gear, and a motor for driving the rotating gear to rotate is fixedly installed inside the pillar.

[0010] As a further solution of the utility model, the outer wall of the rotating gear is rotatably connected to a slider for driving the pillar to move up and down, and the inner cavity of the slider is fixedly installed with a motor for driving the pillar to rotate.

[0011] As a further solution of the utility model, the fixing assembly includes a clamping rod, the clamping rod is rotatably connected to the top of the workbench, and the outer wall fixing sleeve of the clamping rod is provided with a rubber sleeve for increasing friction.

[0012] As a further solution of the utility model, the outer wall of the clamp rod is rotatably connected to a special-shaped block for supporting the clamp rod, the special-shaped block is threadedly connected to the outer wall of the threaded rod, and a second motor for driving the clamp rod to rotate is fixedly installed inside the special-shaped block.

[0013] As a further solution of the utility model, both ends of the threaded rod are rotatably connected to the inside of the workbench through bearings, and one end of the threaded rod passes through the workbench and is fixedly connected to a turntable for driving the threaded rod to rotate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the utility model is used, the motor is driven so that its output shaft drives the rotating gear to rotate, and the arc rod provided inside the rotating gear is used to push the push rod, the connecting rod, the arc rod and the grinding block to move and adjust in the limit groove toward the end away from the rotating gear, so that the grinding block abuts against the inside of the mechanical seal, thereby enabling the device to grind the inside of circular mechanical seals of different sizes.

[0016] 2. When the utility model is used, a clamping rod is provided so that the clamping rod is driven to rotate through a pinion, thereby limiting and fixing the outer wall of a mechanical seal of different sizes. Since there are multiple groups of clamping rods, the contact points with the mechanical seal can be increased when in use, and the stability of the mechanical seal can be increased by using a rubber sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a grinding device used for machining mechanical seals.

[0018] Figure 2 The present invention is a structural diagram of a rotating gear in a grinding device used for machining mechanical seals.

[0019] Figure 3The present invention is a structural diagram of a support in a grinding device used for machining mechanical seals.

[0020] Figure 4 The present invention is a structural diagram of a clamping rod in a grinding device used for machining mechanical seals.

[0021] In the figure: 1, workbench; 2, fixing assembly; 3, threaded rod; 4, grinding assembly; 201, clamping rod; 202, rubber sleeve; 203, special-shaped block; 204, motor 2; 205, large gear; 206, small gear; 301, turntable; 401, rotating gear; 402, arc rod; 403, grinding block; 404, pillar; 405, push rod; 406, arc groove; 407, connecting rod; 408, plug block; 409, slider; 410, motor 1; 411, gear 1; 412, gear 2; 413, support block; 414, cylinder. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Please refer to Figure 1 - Figure 4 A grinding device for machining mechanical seals, comprising a workbench 1, a fixing assembly 2 for clamping and fixing the mechanical seal is slidably connected to the top of the workbench 1, a threaded rod 3 for driving the fixing assembly 2 to move is threadedly connected to the inner cavity of the fixing assembly 2, and a grinding assembly 4 for grinding the mechanical seal is fixedly installed at one end of the fixing assembly 2 away from the threaded rod 3;

[0024] The grinding assembly 4 includes a rotating gear 401, the outer wall of which is rotatably connected to an arc rod 402, and the outer wall of the arc rod 402 is clamped with a grinding block 403. The rotating gear 401 rotates and the arc rod 402 is used to push the grinding block 403 to shrink and expand, so that the grinding block 403 is adjusted according to the internal size of the mechanical seal.

[0025] See also Figure 2 - Figure 3The rotating gear 401 is internally slidably connected with a push rod 405 for pushing the arc rod 402 to move, the outer wall of the rotating gear 401 is rotatably connected with a support 404, and a motor for driving the rotating gear 401 to rotate is fixedly installed inside the support 404. The rotating gear 401 is provided with an arc groove 406 for providing sliding of the push rod 405. The push rod 405 is slidably connected to the inner cavity of the arc groove 406. The push rod 405 and the arc rod 402 are connected by a connecting rod 407; a limiting groove is formed inside the support 404, and the connecting rod 407 slides Connected to the inside of the limiting groove, a slot is opened inside the arc rod 402, and an insert block 408 for fixing the position of the grinding block 403 is inserted inside the slot, and the end of the insert block 408 away from the rotating gear 401 is fixedly connected to the grinding block 403; the motor can be driven to make its output shaft drive the rotating gear 401 to rotate, and the arc rod 402 opened inside the rotating gear 401 is used to push the push rod 405, the connecting rod 407, the arc rod 402 and the grinding block 403 to move and unfold inside the limiting groove toward the end away from the rotating gear 401.

[0026] See also Figure 2 - Figure 3 The outer wall of the rotating gear 401 is rotatably connected to a slider 409 for driving the pillar 404 to move up and down, and the inner cavity of the slider 409 is fixedly installed with a motor 410 for driving the pillar 404 to rotate. Specifically, the outer wall of the pillar 404 is fixedly connected to a gear 411, and the gear 411 is meshingly connected to a gear 2 412, and the end of the gear 2 412 away from the pillar 404 is fixedly connected to the output shaft of the motor 1 410, so that when the motor 1 410 is working, the output shaft drives the gear 2 412 and the gear 1 411 to rotate, so that the gear 1 411 drives the pillar 404 and the grinding block 403 to rotate at a high speed, so that the grinding block 403 grinds the inside of the mechanical seal;

[0027] A support block 413 is slidably connected to the bottom of the slider 409 , and a cylinder 414 for pushing the slider 409 to move up and down is fixedly connected to the inner cavity of the support block 413 , and the top of the cylinder 414 is fixedly connected to the bottom of the slider 409 .

[0028] Example 2: Please refer to Figure 4 The fixing assembly 2 includes a clamping rod 201, which is rotatably connected to the top of the workbench 1. The outer wall of the clamping rod 201 is fixed with a rubber sleeve 202 for increasing friction. The rubber sleeve 202 increases the stability of the mechanical seal when the clamping rod 201 is fixed to the mechanical seal.

[0029] See also Figure 4The outer wall of the clamp rod 201 is rotatably connected with a special-shaped block 203 for supporting the clamp rod 201. The special-shaped block 203 is threadedly connected to the outer wall of the threaded rod 3. A motor 204 for driving the clamp rod 201 to rotate is fixedly installed inside the special-shaped block 203. Specifically, the output shaft of the motor 204 is fixedly connected with a large gear 205. The outer wall of the large gear 205 is meshed with multiple groups of small gears 206, and the number of small gears 206 is the same as that of the clamp rod 201. The end of the small gear 206 away from the motor 204 is fixedly connected to the clamp rod 201, so that when the motor 204 is working, the large gear 205 is used to drive the small gear 206 and the clamp rod 201 to rotate, so that multiple groups of clamp rods 201 are flipped at the same time, and are inserted into the larger mechanical seal. The mechanical seal is fixed by expansion. The expansion sleeve is arranged on the outer wall of the smaller mechanical seal, and the mechanical seal is fixed by extrusion. The end of the small gear 206 away from the clamp rod 201 is rotatably connected to the inside of the special-shaped block 203 through a bearing.

[0030] See also Figure 1 Both ends of the threaded rod 3 are rotatably connected to the inside of the workbench 1 through bearings. One end of the threaded rod 3 passes through the workbench 1 and is fixedly connected to a turntable 301 for driving the threaded rod 3 to rotate. When in use, the threaded rod 3 can be driven to rotate by rotating the turntable 301.

[0031] The working principle of the utility model is:

[0032] When the size of the mechanical seal is large, the mechanical seal can be sleeved on the outer wall of the clamp rod 201. When the size of the mechanical seal is small, the mechanical seal can be placed between multiple groups of clamp rods 201, and the motor 204 is driven to use the large gear 205 to drive the small gear 206 and the clamp rod 201 to rotate, so that the multiple groups of clamp rods 201 are turned over at the same time, and the larger mechanical seal is fixed internally by expansion, or the mechanical seal is fixed externally by extrusion, and then the threaded rod 3 is driven to rotate by rotating the turntable 301, so that the threaded rod 3 pushes the special-shaped block 203 to drive the fixed mechanical seal to the grinding block 4. 03 end moves, and through the driving motor, its output shaft drives the rotating gear 401 to rotate, and the arc rod 402 opened inside the rotating gear 401 is used to push the push rod 405, the connecting rod 407, the arc rod 402 and the grinding block 403 to move and unfold in the limiting groove to the end away from the rotating gear 401, so that the grinding block 403 abuts against the inside of the mechanical seal, and drives the motor 1 410, and drives the gear 2 412 and the gear 1 411 to rotate through its output shaft, so that the gear 1 411 drives the pillar 404 and the grinding block 403 to rotate at a high speed, so that the grinding block 403 grinds the inside of the mechanical seal.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding device for machining mechanical seals, comprising a workbench (1), characterized in that: The top of the workbench (1) is slidably connected to a fixing assembly (2) for clamping and fixing the mechanical seal, the inner cavity of the fixing assembly (2) is threadedly connected to a threaded rod (3) for driving the fixing assembly (2) to move, and a grinding assembly (4) for grinding the mechanical seal is fixedly installed at one end of the fixing assembly (2) away from the threaded rod (3); The grinding assembly (4) comprises a rotating gear (401), the outer wall of the rotating gear (401) is rotatably connected to an arc-shaped rod (402), and the outer wall of the arc-shaped rod (402) is clamped with a grinding block (403).

2. A grinding device for machining mechanical seals according to claim 1, characterized in that: The rotating gear (401) is slidably connected to a push rod (405) for pushing the arc rod (402) to move, and the outer wall of the rotating gear (401) is rotatably connected to a support (404), and a motor for driving the rotating gear (401) to rotate is fixedly installed inside the support (404).

3. A grinding device for machining mechanical seals according to claim 2, characterized in that: The outer wall of the rotating gear (401) is rotatably connected to a slider (409) for driving the pillar (404) to move up and down, and the inner cavity of the slider (409) is fixedly installed with a motor (410) for driving the pillar (404) to rotate.

4. A grinding device for machining mechanical seals according to claim 1, characterized in that: The fixing assembly (2) comprises a clamping rod (201), the clamping rod (201) is rotatably connected to the top of the workbench (1), and the outer wall of the clamping rod (201) is fixedly sleeved with a rubber sleeve (202) for increasing friction.

5. A grinding device for machining mechanical seals according to claim 4, characterized in that: The outer wall of the clamping rod (201) is rotatably connected to a special-shaped block (203) for supporting the clamping rod (201); the special-shaped block (203) is threadedly connected to the outer wall of the threaded rod (3); and a second motor (204) for driving the clamping rod (201) to rotate is fixedly installed inside the special-shaped block (203).

6. A grinding device for machining mechanical seals according to claim 1, characterized in that: Both ends of the threaded rod (3) are rotatably connected to the inside of the workbench (1) via bearings, and one end of the threaded rod (3) passes through the workbench (1) and is fixedly connected to a rotating disk (301) for driving the threaded rod (3) to rotate.

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