A regulating valve inner cavity fine grinding device

Abstract

The present invention relates to the field of valve processing technology, and specifically discloses a fine grinding device for the inner cavity of a regulating valve, comprising a base plate, a regulating valve fixing mechanism and a grinding mechanism; the regulating valve fixing mechanism comprises a lifting platform a fixed on the base plate, and the lifting platform a is provided with a lifting platform b above the contoured seat a, and the grinding mechanism comprises a stand mounted on the lifting platform a, the bottom of the stand is connected to a disc through an annular guide rail, a low-speed rotating drive mechanism is provided on the stand, and a high-speed rotating drive mechanism is provided above the disc, and a plurality of rotating shafts are provided in a circular array around the center of the bottom of the disc, and a driving part of the high-speed rotating drive mechanism passes through the disc and is connected to one of the rotating shafts, and gears meshing with each other are provided on the plurality of rotating shafts, and grinding discs are installed at the bottom of the plurality of rotating shafts. The fine grinding device designed by the present invention can accurately fix the regulating valve, and the inner cavity steps of the regulating valve can be quickly ground through the grinding mechanism, which saves time and effort and has better grinding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of valve processing, and in particular to a precision grinding device for an inner cavity of a regulating valve. Background Art

[0002] The flow control valve is an intuitive and simple flow regulation control device. The flow control valve used in the pipeline network can directly set the flow according to the design. The valve can automatically eliminate the flow deviation caused by the residual pressure head and pressure fluctuation of the pipeline under the action of water. No matter how the system pressure changes, the set flow rate is maintained unchanged. These functions of the valve enable the pipeline network flow regulation to be completed in one go, turning the regulation work into a simple flow distribution, and effectively solving the hydraulic imbalance of the pipeline network.

[0003] During the production process of flow control valves, the inner cavity for installing the valve stem assembly generally has steps, and there are a large number of burrs on the surface of the steps. If these burrs are not ground off, the installation of the valve stem assembly will be affected. In the prior art, the steps in the inner cavity of the flow control valve are ground manually with the help of a grinder. This grinding method is time-consuming and labor-intensive, and the grinding effect is poor. In order to solve this problem, the present invention discloses a fine grinding device for the inner cavity of a control valve. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention discloses a fine grinding device for the inner cavity of a regulating valve.

[0005] To achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a regulating valve inner cavity fine grinding device, comprising a base plate, a regulating valve fixing mechanism and a grinding mechanism;

[0006] The regulating valve fixing mechanism includes a lifting platform a fixed to the bottom plate, the lifting platform a is provided with a contoured seat a for placing the lower half of the regulating valve, the lifting platform a is provided with a lifting platform b above the contoured seat a, the bottom of the lifting platform b is provided with a contoured seat b for clamping the upper half of the regulating valve, and the contoured seat b and the lifting platform b are provided with a clearance groove communicating with the regulating valve installation channel;

[0007] The grinding mechanism includes a platform mounted on a lifting platform a, the bottom of the platform is connected to a disc through an annular guide rail, a low-speed rotation drive mechanism is provided on the platform, the driving part of the low-speed rotation drive mechanism passes through the platform and is connected to the disc, a high-speed rotation drive mechanism is provided above the disc, a plurality of rotating shafts are provided in a circular array around the center of the bottom of the disc, the driving part of the high-speed rotation drive mechanism passes through the disc and is connected to one of the rotating shafts, several rotating shafts are provided with gears meshing with each other, and grinding discs are installed at the bottom of several rotating shafts.

[0008] As a preferred embodiment of the present invention, the lifting platform a is a scissor-fork type lifting platform.

[0009] As a preferred embodiment of the present invention, guide rods are respectively provided on opposite sides of the scissor-fork type lifting platform, guide holes are respectively provided on opposite sides of the platform, two guide rods are respectively provided through the two guide holes, and limiting nuts are provided on the tops of the two guide rods.

[0010] As a preferred embodiment of the present invention, the lifting platform b includes a platform body and two hydraulic cylinders. The two hydraulic cylinders are arranged on opposite sides of the scissor-fork type lifting platform, and the platform body is connected to the piston rods of the two hydraulic cylinders.

[0011] As a preferred embodiment of the present invention, the low-speed rotation drive mechanism includes a motor a and a reducer connected to the output shaft of motor a, the motor a and the reducer are both arranged on a stand, and the drive shaft of the reducer passes through the stand and is connected to the disc.

[0012] As a preferred embodiment of the present invention, the high-speed rotation drive mechanism includes a drive motor b and a coupling connected to the output shaft of the motor b. The drive motor b and the coupling are both arranged above the disc, and the output shaft of the coupling passes through the disc and is connected to a rotating shaft.

[0013] As a preferred embodiment of the present invention, the outer rings of the plurality of grinding discs do not exceed the outer ring of the circular disc.

[0014] The present invention achieves the following beneficial effects:

[0015] 1. The regulating valve fixing mechanism provided in the present invention can facilitate the rapid clamping or removal of the regulating valve by cooperating with the contoured seat b on the lifting platform b and the contoured seat a on the lifting platform a, thereby facilitating better grinding by the grinding mechanism.

[0016] 2. The grinding mechanism of the present invention drives the disc to rotate through a low-speed rotation drive mechanism, and drives several grinding discs to rotate through a high-speed rotation drive mechanism, so that the step surface in the inner cavity of the regulating valve can be finely ground, and the use effect is better.

[0017] As for other features and advantages of the present invention, they will be described in the following description, and part of them will become obvious from the description, or they will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

[0019] Figure 1 It is a schematic diagram of the overall structure disclosed in the present invention;

[0020] Figure 2 This is a schematic diagram of the planar structure disclosed in the present invention;

[0021] Figure 3 for Figure 2 A in the figure shows the enlarged structural diagram;

[0022] In the figure: 10, base plate; 20, regulating valve fixing mechanism; 21, lifting platform a; 22, contour seat a; 23, lifting platform b; 231, platform body; 232, contour seat b; 233, hydraulic cylinder; 234, make way groove; 30, grinding mechanism; 31, stand; 32, annular guide rail; 33, disc; 34, low-speed rotation drive mechanism; 341, motor a; 342, reducer; 35, high-speed rotation drive mechanism; 351, motor b; 352, coupling; 36, rotating shaft; 37, grinding disc; 38, gear; 40, guide rod; 50, limit nut. DETAILED DESCRIPTION

[0023] The technical solutions 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 only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "opening", "up", "down", "front", "back", "left", "right", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0025] Example

[0026] refer to Figure 1-Figure 3 As shown, a regulating valve inner cavity fine grinding device includes a base plate 10, a regulating valve fixing mechanism 20 and a grinding mechanism 30;

[0027] The regulating valve fixing mechanism 20 includes a lifting platform a21 fixed to the base plate 10. A contoured seat a22 for placing the lower half of the regulating valve is provided on the lifting platform a21. A lifting platform b23 is mounted above the contoured seat a22 on the lifting platform a21. A contoured seat b232 for clamping the upper half of the regulating valve is provided at the bottom of the lifting platform b23. A clearance groove 234 communicating with the regulating valve mounting channel is formed on the contoured seat b232 and the lifting platform b23.

[0028] In actual use, the operator first places the lower half of the regulating valve to be ground in the contour seat a22, and then the lifting platform b23 drives the contour seat b232 to descend. With the cooperation of the contour seat b232 and the contour seat b232, the regulating valve will be clamped.

[0029] The grinding mechanism 30 includes a stand 31 mounted on a lifting platform a21. The bottom of the stand 31 is connected to a disc 33 via an annular guide rail 32. A low-speed rotation drive mechanism 34 is provided on the stand 31. The driving portion of the low-speed rotation drive mechanism 34 passes through the stand 31 and is connected to the disc 33. A high-speed rotation drive mechanism 35 is provided above the disc 33. The bottom of the disc 33 is provided with a plurality of rotating shafts 36 in an annular array around its center. The driving portion of the high-speed rotation drive mechanism 35 passes through the disc 33 and is connected to one of the rotating shafts 36. The rotating shafts 36 are provided with gears 38 that mesh with each other. Grinding discs 37 are installed at the bottom of several rotating shafts 36. The outer rings of several grinding discs 37 do not exceed the outer ring of the disc 33. After the regulating valve is clamped, the lifting platform a21 will lift the regulating valve until the several grinding discs 37 on the disc 33 contact the steps in the inner cavity of the regulating valve. At this time, the low-speed rotation drive mechanism 34 drives the disc 33 to rotate at a low speed. At the same time, the high-speed rotation drive mechanism 35 drives the several grinding discs 37 to rotate at a high speed. When the grinding discs 37 rotate at a high speed, due to the continuous change of position, the steps in the inner cavity of the regulating valve can be finely ground.

[0030] Preferably, the lifting platform a21 of the present invention is a scissor-fork type lifting platform. In addition, guide rods 40 are respectively provided on the opposite sides of the scissor-fork type lifting platform, and guide holes (not marked) are respectively provided on the opposite sides of the platform 31. The two guide rods 40 are respectively provided through the two guide holes, and the tops of the two guide rods 40 are provided with limiting nuts 50, which can ensure that the lifting platform can be lifted and lowered smoothly, so that the disc 33 can smoothly enter the inner cavity of the regulating valve and make several grinding discs 37 contact the steps in the inner cavity of the regulating valve.

[0031] In one embodiment, the lifting platform b23 includes a platform body 231 and two hydraulic cylinders 233. The two hydraulic cylinders 233 are arranged on opposite sides of the scissor-fork type lifting platform. The platform body 231 is connected to the piston rods of the two hydraulic cylinders 233. Driven by the two hydraulic cylinders 233, the platform body 231 of the lifting platform b23 can be lifted and lowered. In addition, it should be noted that in actual use, the hydraulic cylinder 233 can also be replaced by an electric cylinder and a pneumatic cylinder.

[0032] In one embodiment, the low-speed rotation drive mechanism 34 includes a motor a341 and a reducer 342 connected to the output shaft of the motor a341. The motor a341 and the reducer 342 are both arranged on the stand 31. The drive shaft of the reducer 342 passes through the stand 31 and is connected to the disc 33. With the cooperation of the motor a341 and the reducer 342, the disc 33 can move at a low speed.

[0033] In one embodiment, the high-speed rotation drive mechanism 35 includes a drive motor b351 and a coupling 352 connected to the output shaft of the motor b351. The drive motor b351 and the coupling 352 are both arranged above the disc 33. The output shaft of the coupling 352 passes through the disc 33 and is connected to a rotating shaft 36. With the cooperation of the motor a341 and the coupling 352, several grinding discs 37 can move at high speed.

[0034] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the spirit and essence of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A regulating valve inner cavity fine grinding device, characterized in that: It comprises a bottom plate (10), a regulating valve fixing mechanism (20) and a grinding mechanism (30); The regulating valve fixing mechanism (20) includes a lifting platform a (21) fixed on the bottom plate (10), a contour seat a (22) for placing the lower half of the regulating valve is provided on the lifting platform a (21), a lifting platform b (23) is mounted above the contour seat a (22), a contour seat b (232) for clamping the upper half of the regulating valve is provided at the bottom of the lifting platform b (23), and a clearance groove (234) communicating with the regulating valve installation channel is provided on the contour seat b (232) and the lifting platform b (23); The grinding mechanism (30) includes a stand (31) mounted on a lifting platform a (21), the bottom of the stand (31) is connected to a disc (33) through an annular guide rail (32), a low-speed rotation drive mechanism (34) is provided on the stand (31), a driving portion of the low-speed rotation drive mechanism (34) passes through the stand (31) and is connected to the disc (33), a high-speed rotation drive mechanism (35) is provided above the disc (33), a plurality of rotating shafts (36) are provided at the bottom of the disc (33) in an annular array around the center thereof, a driving portion of the high-speed rotation drive mechanism (35) passes through the disc (33) and is connected to one of the rotating shafts (36), a plurality of rotating shafts (36) are provided with gears (38) meshing with each other, and a grinding disc (37) is installed at the bottom of each of the rotating shafts (36).

2. The regulating valve inner cavity fine grinding equipment according to claim 1, characterized in that: The lifting platform a (21) is a scissor-fork type lifting platform.

3. The regulating valve inner cavity fine grinding equipment according to claim 2, characterized in that: The scissor-fork type lifting platform is provided with guide rods (40) on opposite sides, and the platform (31) is provided with guide holes on opposite sides. The two guide rods (40) are respectively passed through the two guide holes, and the tops of the two guide rods (40) are provided with limit nuts (50).

4. The regulating valve inner cavity fine grinding equipment according to claim 1, characterized in that: The lifting platform b (23) comprises a platform body (231) and two hydraulic cylinders (233). The two hydraulic cylinders (233) are arranged on opposite sides of the scissor-fork type lifting platform. The platform body (231) is connected to the piston rods of the two hydraulic cylinders (233).

5. The regulating valve inner cavity fine grinding equipment according to claim 1, characterized in that: The low-speed rotation drive mechanism (34) includes a motor a (341) and a reducer (342) connected to the output shaft of the motor a (341). The motor a (341) and the reducer (342) are both arranged on the platform (31), and the drive shaft of the reducer (342) passes through the platform (31) and is connected to the disc (33).

6. The regulating valve inner cavity fine grinding equipment according to claim 1, characterized in that: The high-speed rotation drive mechanism (35) includes a drive motor b (351) and a coupling (352) connected to the output shaft of the motor b (351). The drive motor b (351) and the coupling (352) are both arranged above the disc (33). The output shaft of the coupling (352) passes through the disc (33) and is connected to a rotating shaft (36).

7. The regulating valve inner cavity fine grinding equipment according to claim 1, characterized in that: The outer rings of the plurality of grinding discs (37) do not exceed the outer ring of the disc (33).

Images