Grinding device for valve element of gate valve

Abstract

The utility model discloses a gate valve element grinding device which comprises a grinding table, a fixing frame, a grinding piece and a rotating mechanism which is installed on the grinding table and used for driving a valve element to rotate. The fixing mechanism is installed on the fixing frame and used for fixing the valve element and the rotating mechanism; the valve element grinding device is reasonable in structure, the spherical valve element can be conveniently fixed, grinding work can be conveniently conducted, meanwhile, the position of the grinding piece can be automatically adjusted, manual adjustment is not needed, and the use requirement can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve processing, in particular to a gate valve core grinding device. Background Art

[0002] The gate valve is a gate plate of an opening and closing part. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve needs to be closed tightly, so the gate valve core generally needs to be ground during processing to make the surface of the gate valve core smooth, so that the gate valve core can fit tightly with the gate seat when used. However, the current equipment for grinding the gate valve core uses a grinding rod to rotate in the same position to grind the gate valve core. After the gate valve core has been ground for a period of time, the diameter of the gate valve core will gradually become smaller, and the grinding rod will gradually lose contact with the gate valve core, so that manual grinding is required later, which leads to low work efficiency. Intermittent grinding will cause the grinding surface of the gate valve core to be not smooth and flat, resulting in poor grinding quality of the gate valve core.

[0003] In order to solve the above problems, the invention patent with authorization announcement number CN116494078B discloses a gate valve core grinding device and method, which rotates the motor to rotate the gate valve core. When the gate valve core rotates, it contacts the grinding rod, so that the grinding rod grinds the gate valve core. When the gate valve core is ground to the point where it no longer contacts the grinding rod, the staff manually pulls the handle upward, so that the grinding rod continues to grind the gate valve core. The grinding rod is always in close contact with the gate valve core, making the grinding surface of the gate valve core smooth and flat, thereby improving the grinding quality.

[0004] However, when the device is used in practice, it is not convenient to fix the spherical valve core, making it difficult to perform grinding processing. In addition, during the grinding process, workers are required to manually adjust the position of the grinding rod, which increases the workload of the workers and cannot meet the use requirements well. Utility Model Content

[0005] The utility model aims to provide a gate valve core grinding device 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 gate valve core grinding device comprises: a grinding table, a fixing frame, a grinding sheet, a rotating mechanism installed on the grinding table and used to drive the valve core to rotate; a fixing mechanism installed on the fixing frame and used to fix the valve core and the rotating mechanism; an adjusting mechanism installed on the grinding table and used to adjust the distance between the grinding sheet and the valve core.

[0008] As a preferred solution, the rotating mechanism includes a rotating disk rotatably mounted on the grinding table, a rotating sleeve is fixed on the rotating disk, the valve core is sleeved on the rotating sleeve, and a rotating motor is also installed at the lower end of the grinding table, and the output end of the rotating motor is drivingly connected to the shaft end of the rotating disk.

[0009] As a preferred solution, a plurality of groups of positioning grooves are distributed on the rotating sleeve, a positioning slider is slidably installed in each of the positioning grooves, a positioning groove and a reset groove are provided in the middle position of the positioning slider, the positioning groove is connected with the reset groove, a positioning column is inserted in the position corresponding to the positioning groove at the upper end of the rotating sleeve, a reset plate is slidably installed in the reset groove, a reset spring is fixed on the upper end of the reset plate, and the other end of the reset spring is fixedly connected to the corresponding side of the reset groove.

[0010] As a preferred solution, the width of the reset groove is greater than the width of the positioning groove.

[0011] As a preferred solution, a chamfer is provided on one side of the upper end of the positioning slider close to the central axis of the rotating sleeve.

[0012] As a preferred solution, the fixing mechanism includes a fixed electric push rod installed on a fixed frame, the telescopic end of the fixed electric push rod passes through the fixed frame and is installed with a fixed lifting seat, the lower end of the fixed lifting seat is rotatably installed with a fixed pressing plate through a slewing bearing, and the lower end of the fixed pressing plate is fixed with a fixed plug.

[0013] As a preferred solution, the adjustment mechanism includes an adjustment seat installed on the grinding table, an adjustment electric push rod is installed on the adjustment seat, the telescopic end of the adjustment electric push rod passes through the adjustment seat and is fixed with a connecting seat, and a grinding disc is inserted on the connecting seat.

[0014] As a preferred solution, adjustment holes are provided at corresponding positions of the grinding disc and the connecting seat, and an adjustment pin is inserted into the adjustment hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The fixed lifting seat is pushed downward by the fixed electric push rod, and the fixed pressure piece drives the fixed plug column to move downward. When the fixed plug column is fully inserted into the rotating sleeve, the fixed pressure piece cooperates with the rotating disk to clamp the valve core. In addition, the end of the positioning slide extends out of the positioning slide groove and contacts the inner wall of the valve core, which can effectively prevent the valve core from rotating relative to the rotating sleeve, thereby completing the further fixation of the valve core;

[0017] By adjusting the electric push rod to push the connecting seat to the right, the grinding sheet is brought close to the valve core. In this process, the worker does not need to manually adjust the distance between the grinding sheet and the valve core, which can effectively reduce the workload of the worker and better meet the use requirements. The utility model has a reasonable structure and is convenient for fixing the spherical valve core for grinding. At the same time, the position of the grinding sheet can be automatically adjusted without manual adjustment, which can better meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a gate valve core grinding device;

[0019] Figure 2 It is a schematic diagram of the structure of a gate valve core grinding device after the valve core is hidden;

[0020] Figure 3 It is a three-dimensional structural diagram of the position of the rotating components of a gate valve core grinding device;

[0021] Figure 4 It is a schematic cross-sectional structure diagram of a rotating component of a gate valve core grinding device;

[0022] Figure 5 It is a three-dimensional structural diagram of the positioning slide block position of a gate valve core grinding device;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of a fixing mechanism of a gate valve core grinding device;

[0024] Figure 7 The present invention is a three-dimensional structural diagram of the position of the adjustment mechanism of a gate valve core grinding device.

[0025] In the figure: 1-grinding table, 11-valve core, 12-fixed frame, 2-rotating mechanism, 21-rotating motor, 22-rotating disk, 23-rotating sleeve, 24-positioning slide, 25-positioning slider, 251-reset plate, 252-reset spring, 253-reset slide, 26-positioning column, 261-positioning groove, 3-fixing mechanism, 31-fixed electric push rod, 32-fixed lifting seat, 33-fixed pressure plate, 34-fixed plug column, 4-adjusting mechanism, 41-adjusting seat, 42-adjusting electric push rod, 43-connecting seat, 44-grinding plate, 45-adjusting pin. DETAILED DESCRIPTION

[0026] 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.

[0027] Example: See Figures 1 to 7 A gate valve core grinding device includes: a grinding table 1, a fixing frame 12, a grinding sheet 44, a rotating mechanism 2, installed on the grinding table 1, used to drive the valve core 11 to rotate; a fixing mechanism 3, installed on the fixing frame 12, used to fix the valve core 11 and the rotating mechanism 2; an adjusting mechanism 4, installed on the grinding table 1, used to adjust the distance between the grinding sheet 44 and the valve core 11.

[0028] The working principle of the utility model: when in use, firstly, the spherical valve core 11 is mounted on the rotating mechanism 2, and then the valve core 11 is fixed to the rotating mechanism 2 by the fixing mechanism 3, and then the valve core 11 is driven to rotate by the rotating mechanism 2. At the same time, the grinding sheet 44 is pushed close to the valve core by the adjusting mechanism 4, so that the valve core 11 can be ground. This process does not require workers to manually adjust the distance between the grinding sheet 44 and the valve core 11, and the operation is simple, which can better meet the use requirements.

[0029] As a further solution, the rotating mechanism 2 includes a rotating disk 22 rotatably mounted on the grinding table 1, a rotating sleeve 23 is fixed on the rotating disk 22, the valve core 11 is sleeved on the rotating sleeve 23, and a rotating motor 21 is also installed at the lower end of the grinding table 1, and the output end of the rotating motor 21 is drivingly connected to the shaft end of the rotating disk 22.

[0030] The working principle of the rotating mechanism 2 is: when grinding, the rotating motor 21 is started, and the rotating disc 22 is driven to rotate by the rotating motor 21, thereby driving the valve core 11 sleeved on the rotating sleeve 23 to rotate, and the valve core 11 can be ground by the grinding sheet 44.

[0031] As a further solution, a plurality of groups of positioning slots 24 are distributed on the rotating sleeve 23, and a positioning slider 25 is slidably installed in each of the positioning slots 24. A positioning slot 261 and a reset slot 253 are provided in the middle of the positioning slider 25. The positioning slot 261 is communicated with the reset slot 253. Positions corresponding to the positioning slots 261 on the upper end of the rotating sleeve 23 are inserted with positioning columns 26. A reset sheet 251 is slidably installed in the reset slot 253. A reset spring 252 is fixed on the upper end of the reset sheet 251. The other end of the reset spring 252 is fixedly connected to a corresponding side of the reset slot 253. In this embodiment, the width of the reset slot 253 is greater than the width of the positioning slot 261.

[0032] The fixing mechanism 3 includes a fixed electric push rod 31 installed on the fixing frame 12. The telescopic end of the fixed electric push rod 31 passes through the fixing frame 12 and is installed with a fixed lifting seat 32. The lower end of the fixed lifting seat 32 is rotatably installed with a fixed pressing plate 33 through a slewing bearing. The lower end of the fixed pressing plate 33 is fixed with a fixed plug 34. In order to facilitate the insertion of the fixed plug 34 into the rotating sleeve 23, a chamfer is provided on the side of the upper end of the positioning slide block 25 close to the central axis of the rotating sleeve 23. By providing the chamfer, it is convenient for the fixed plug 34 to push the positioning slide block 25 to move outward, thereby positioning the valve core 11 and reducing the possibility of its rotation relative to the rotating sleeve 23.

[0033] The working principle of the fixing mechanism 3 is: when the valve core 11 needs to be fixed, the fixed electric push rod 31 is extended to push the fixed lifting seat 32 downward. At this time, the fixed pressing plate 33 drives the fixed plug 34 to move downward. When the fixed plug 34 is inserted into the rotating sleeve 23 and continues to move downward, it will push the positioning slider 25 to move outward. When the fixed plug 34 is fully inserted, the fixed pressing plate 33 cooperates with the rotating disk 22 to clamp the valve core 11 (the reset spring 252 is compressed to the limit position, and when the fixed plug 34 is pulled out, the reset spring 252 drives the positioning slider 25 to reset). In addition, the end of the positioning slider 25 extends out of the positioning slot 24 and contacts the inner wall of the valve core 11, which can effectively prevent the valve core 11 from rotating relative to the rotating sleeve 23, thereby completing the further fixation of the valve core 11 to facilitate grinding.

[0034] As a further solution, the adjustment mechanism 4 includes an adjustment seat 41 installed on the grinding table 1, and an adjustment electric push rod 42 is installed on the adjustment seat 41. The telescopic end of the adjustment electric push rod 42 passes through the adjustment seat 41 and is fixed with a connecting seat 43. A grinding plate 44 is inserted on the connecting seat 43. Adjustment holes are opened at corresponding positions of the grinding plate 44 and the connecting seat 43, and an adjustment pin 45 is inserted in the adjustment hole.

[0035] The working principle of the adjustment mechanism 4 is: when installing, insert the connection part on the grinding sheet 44 into the slot of the connection seat 43, and after it is fully inserted, insert the adjustment pin 45 into the adjustment hole, and the installation of the grinding sheet 44 can be completed, which is convenient for disassembly and assembly;

[0036] By adjusting the electric push rod 42, the connecting seat 43 is pushed to the right, so that the grinding sheet 44 is close to the valve core 11. When the grinding sheet 44 is in contact with the valve core 11, the valve core 11 is driven to rotate by the turning mechanism 2, and the valve core 11 can be ground by the grinding sheet 44. This process does not require workers to manually adjust the distance between the grinding sheet 44 and the valve core 11, which can effectively reduce the workload of workers and better meet usage requirements.

[0037] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. A gate valve core grinding device, characterized in that: include: Grinding table (1), fixing frame (12), grinding sheet (44), A rotating mechanism (2) is mounted on the grinding table (1) and is used to drive the valve core (11) to rotate; The rotating mechanism (2) comprises a rotating disk (22) rotatably mounted on the grinding table (1), a rotating sleeve (23) being fixed on the rotating disk (22), the valve core (11) being sleeved on the rotating sleeve (23), and a rotating motor (21) being mounted at the lower end of the grinding table (1), the output end of the rotating motor (21) being drivingly connected to the shaft end of the rotating disk (22) A fixing mechanism (3) is mounted on the fixing frame (12) and is used to fix the valve core (11) and the rotating mechanism (2); The adjusting mechanism (4) is installed on the grinding table (1) and is used to adjust the distance between the grinding sheet (44) and the valve core (11).

2. A gate valve core grinding device according to claim 1, characterized in that: A plurality of groups of positioning grooves (24) are distributed on the rotating sleeve (23), and a positioning slider (25) is slidably installed in each of the positioning grooves (24). A positioning groove (261) and a reset groove (253) are provided in the middle of the positioning slider (25), and the positioning groove (261) is communicated with the reset groove (253). Positions at the upper end of the rotating sleeve (23) corresponding to the positioning groove (261) are inserted with positioning columns (26), and a reset plate (251) is slidably installed in the reset groove (253). A reset spring (252) is fixed on the upper end of the reset plate (251), and the other end of the reset spring (252) is fixedly connected to a corresponding side of the reset groove (253).

3. A gate valve core grinding device according to claim 2, characterized in that: The width of the reset sliding groove (253) is greater than the width of the positioning groove (261).

4. A gate valve core grinding device according to claim 3, characterized in that: A chamfer is provided on one side of the upper end of the positioning slide block (25) close to the central axis of the rotating sleeve (23).

5. A gate valve core grinding device according to claim 4, characterized in that: The fixing mechanism (3) comprises a fixed electric push rod (31) mounted on a fixing frame (12); the telescopic end of the fixed electric push rod (31) passes through the fixing frame (12) and is mounted with a fixed lifting seat (32); a fixed pressing plate (33) is rotatably mounted on the lower end of the fixed lifting seat (32) via a slewing bearing; a fixed plug post (34) is fixed to the lower end of the fixed pressing plate (33).

6. A gate valve core grinding device according to claim 5, characterized in that: The adjustment mechanism (4) comprises an adjustment seat (41) mounted on the grinding table (1), an adjustment electric push rod (42) being mounted on the adjustment seat (41), a telescopic end of the adjustment electric push rod (42) passing through the adjustment seat (41) and being fixed with a connecting seat (43), and a grinding sheet (44) being inserted into the connecting seat (43).

7. A gate valve core grinding device according to claim 6, characterized in that: Adjustment holes are provided at corresponding positions of the grinding sheet (44) and the connecting seat (43), and an adjustment pin (45) is inserted into the adjustment hole.

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