CN217800784U - Grinding device for repairing valve core of valve - Google Patents
Grinding device for repairing valve core of valve Download PDFInfo
- Publication number
- CN217800784U CN217800784U CN202221461490.1U CN202221461490U CN217800784U CN 217800784 U CN217800784 U CN 217800784U CN 202221461490 U CN202221461490 U CN 202221461490U CN 217800784 U CN217800784 U CN 217800784U
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- Prior art keywords
- valve
- grinding
- support
- valve rod
- device chassis
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- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 229920001973 fluoroelastomer Polymers 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 231100000241 scar Toxicity 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a grinder for repairing valve case, its technical characterstic is: the grinding device comprises a device chassis, a supporting bracket, a grinding disc, a tapered roller bearing, a valve rod bracket and a transmission belt, wherein the supporting bracket, the grinding disc and the transmission shaft body are arranged on the device chassis along the central line of the device chassis; one end of the valve rod support is installed on the supporting support, the other end of the valve rod support is installed together with the copper cushion block, and the transmission rubber belt is installed on the transmission shaft body and the grinding valve core to achieve the transmission function. The utility model relates to a rationally, have simple structure, be convenient for operation, characteristics such as safe in utilization, can effectively improve work efficiency, avoid causing equipment secondary damage because improper operation.
Description
Technical Field
The utility model belongs to the technical field of the pipe valve equipment, especially, a grinder for repairing valve case.
Background
Valve devices are important mechanical devices in piping systems. The valve device has wide application and various types, is generally used for pipeline accessories for opening and closing pipelines, controlling flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and has the functions of stopping, adjusting, guiding, preventing countercurrent, stabilizing pressure, shunting or overflowing and pressure relief and the like.
The valve device has various functions and structures, and the connection mode of the valve core and the valve rod is more various. In order to ensure that the valve core cannot fall off during operation of some valves, the valve core and the valve rod are connected in an embedded mode, so that the valve core can rotate freely, and the valve core and the valve rod can be firmly connected, and therefore the defect of equipment caused by the fact that the valve core falls off during the use of the valves is avoided. However, when the sealing surface of this type of valve is washed, it is difficult to repair the valve element by grinding.
The methods widely used for grinding and repairing the valve core of the valve at present are divided into two methods: manual grinding repair and machine tool machining repair. Because the valve core and the valve rod can not be separated, the construction difficulty of the manual grinding process is higher and the grinding precision requirement is difficult to ensure. When the machine tool is used for machining, the clamp is fixed on one side of a non-sealing surface of the valve core, the valve rod can only penetrate through a center hole of the lathe clamp and is placed in a suspended mode, and secondary damage to the valve rod is easily caused by collision between the valve rod and the clamp when the machine tool rotates at a high speed. And the resonance generated when the valve rod rotates during the processing is difficult to ensure the technical requirements of the angle processing precision and the concentricity of the valve core, so that the upper sealing surface and the lower sealing surface of the valve cannot be completely attached, and the hidden trouble of internal leakage of the valve is caused. The case surface hardening layer is only 0.3 millimeter, and the processing deviation that vibrations caused can make case part position surface hardening layer disappearance to cause case hardness no longer to satisfy technical requirement, finally cause the case to use because of the processing deviation reason can not continue after the restoration.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a grinder for repairing valve case, solved the case can't grind the problem of difficulty with valve rod separation type valve well valve core.
The utility model provides a current technical problem take following technical scheme to realize:
a grinding device for repairing a valve core of a valve comprises a device chassis, a supporting bracket, a grinding disc, a tapered roller bearing, a valve rod bracket and a transmission belt, wherein the supporting bracket, the grinding disc and the transmission shaft body are arranged on the device chassis along the central line of the device chassis; one end of the valve rod support is installed on the supporting support, the other end of the valve rod support is installed together with the copper cushion block, and the transmission belt is installed on the transmission shaft body and the grinding valve core to achieve the transmission function.
Further, the mounting mode of the supporting bracket and the device chassis is as follows: the front part of the device chassis is fixedly provided with a slideway, and a support bracket is arranged on the slideway and is fastened through a limiting jackscrew at the side end of the slideway.
Further, the mounting mode of abrasive disc and device chassis does: the grinding disk axial is installed in the mounting hole that device chassis middle part was equipped with, and the grinding disk is outer along fixing through three grinding disk support and grinding disk fastening bolt.
Further, the installation mode of the tapered roller bearing and the device chassis is as follows: the valve rod support is installed together with the top and the middle of the support through a support bolt and a support nut.
Furthermore, an adjusting gasket is arranged between the support nut and the valve rod support, and the adjusting gasket is one or more than one.
Further, the valve rod support is installed together with the copper cushion block through a cushion block bolt.
Further, the transmission belt uses a fluororubber belt.
The utility model discloses an advantage is with positive effect:
1. the utility model discloses each part all meshes the hookup through bolt and nut, has characteristics easy and simple to handle, safe and reliable, can greatly improve work efficiency. And the split structure is adopted, each part of the grinding disc, the bracket and the like can be quickly disassembled and assembled at any time, and the convenience of the device is greatly improved, so that the device is convenient to use, carry, transport and store.
2. The utility model discloses an abrasive disc is installed on the device chassis by the abrasive disc support, and the dismouting is very convenient, can change the abrasive disc that matches with it according to case form, size and sealed face angle, has enlarged and has ground the case kind.
3. The utility model discloses a support frame is connected for the slide with the device chassis, and is adjustable from beginning to end, relies on spacing jackscrew fixed, and two sets of valve rod support rely on support double-screw bolt and support nut meshing and support frame fastening connection, and adjustable from top to bottom to can increase and decrease adjusting shim quantity according to required width and change the valve rod support interval, consequently, through the fixed of the more specification valve rods of effective regulation adapter, and installed copper cushion between valve rod support and the valve rod, the better protection valve rod does not receive secondary damage when the centre gripping is fixed.
4. The utility model discloses use the fluororubber area as the drive belt, because fluororubber is a polymer elastomer, have excellent heat resistance, ductility, oxidation resistance, corrosion resistance, consequently, the medium that the high temperature that produces and different specification valve cores carried when grinding at a high speed to the case has evasiveness, and has good suitability to the grinding of corrosivity chemical valve case.
5. The utility model discloses install at bench drill and by bench drill as the power supply, because bench drill is one kind by wide use and the wider processing equipment of usage, therefore, its suitability is strong, and bench drill rotational speed is adjustable, the top speed is higher, to rinsing seriously, the scar is darker, need grind great case, can use high rotational speed to grind, save maintenance duration greatly, it is slight to the scar, the less case of grinding volume, can use low rotational speed, meticulous grinding, the bigger degree remains surface hardening layer thickness, increase valve life cycle, practice thrift cost of maintenance. Meanwhile, the bench drill can fix the valve core grinding device on the operating platform by using a clamp, so that the machining error caused by vibration is reduced.
Drawings
Fig. 1 is a top view of the present invention;
FIG. 2 is a front cross-sectional view of the valve stem and valve core assembly of the present invention after installation;
the device comprises a support stud 1, a support spacer 2, a support bracket 3, a limiting jackscrew 4, a support nut 5, a grinding disc support 6, a grinding disc 7, a grinding disc fastening bolt 8, a copper cushion block 9, a cushion block bolt 10, a valve rod support 11, a device chassis 12, a transmission shaft body 13, a conical roller bearing 14, a transmission rubber belt 15, a slideway 16, a valve core 17 and a valve rod 18.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings.
A grinding device for repairing a valve core of a valve is shown in figures 1 and 2 and comprises a support stud (1), an adjusting gasket (2), a supporting support (3), a limiting jackscrew (4), a support nut (5), a grinding disc support (6), a grinding disc (7), a grinding disc fastening bolt (8), a copper cushion block (9), a cushion block bolt (10), a valve rod support (11), a device chassis (12), a transmission shaft body 13, a conical roller bearing (14), a transmission rubber belt (15) and a slide way (16). The utility model takes the device chassis (12) as a basic plane, and the supporting bracket (3), the grinding disc (7) and the transmission shaft body (13) are arranged on the device chassis (12) along the central line of the device chassis (12); the supporting bracket (3) is arranged on a slideway (16) at the front part of the device chassis (12), and the supporting bracket (3) is fastened through a limiting jackscrew (4); the grinding disc (7) is axially arranged at the middle part of the device chassis (12) corresponding to the hole position and is fixedly connected with the device chassis through three grinding disc brackets (6) and grinding disc fastening bolts (8); the tapered roller bearing (14) is axially arranged at a corresponding hole position at the rear part of the device chassis (12); the transmission shaft body (13) is axially arranged in the tapered roller bearing (14). The front end of the valve rod support (11) is installed with a copper cushion block (9) through a cushion block bolt (10); the other end of the valve rod support (11) is installed together with the top and the middle of the support (3) through a support bolt (1) and a support nut (5), an adjusting gasket (2) is installed between the support nut (5) and the valve rod support (11), and the number of the adjusting gasket (2) is adjusted according to the size of the valve rod. The transmission rubber belt (15) is used for connecting the transmission shaft body (13) with the valve core to be ground to realize a transmission function, and in the embodiment, the transmission rubber belt (15) uses a fluororubber belt as a transmission belt.
The utility model discloses the concrete process of sealed face dismantlement during operation under carrying out the valve is as follows:
(1) After the safety measures for disassembling and maintaining the valve are taken, the medium in the valve and the pipeline is exhausted, the valve device is disassembled, and the valve rod and valve core assembly is disassembled.
(2) And measuring the detached valve rod and valve core assembly, and preparing to adjust the quantity of the gaskets (2) and the type of the grinding disc (7) according to the sizes of the valve rod and the valve core and the type of the valve core.
(3) And mounting the support bracket (3) to a device chassis (12) along a slide rail, determining the position according to the measured data of the valve rod and valve core assembly, and screwing a limit jackscrew (4) after determining so that the support bracket (3) is tightly mounted on the device chassis (12).
(4) And observing the flushing condition of the valve core, and judging the required grinding paste or sand paper. The grinding medium is placed on the grinding side of the grinding disc (7).
(5) Installing the grinding disc (7) in a corresponding hole position of the device chassis (12), installing a grinding disc bracket (6), and screwing a grinding disc fastening bolt (8) to ensure that the grinding disc (7) is firmly installed on the device chassis (12).
(6) A copper cushion block (9) is arranged on a valve rod support (11), and a tightened cushion block bolt (10) is arranged to enable the copper cushion block and the valve rod support to be tightly connected.
(7) After the valve rod and the valve core assembly penetrate through a transmission rubber belt (15), the valve core (17) is downwards placed on the grinding disc (7) and adjusted to a proper position.
(8) Observing the position and the length of a valve rod, determining the positions of an upper valve rod support (11) and a lower valve rod support (11), penetrating a support stud (1) to a support (3), sequentially installing adjusting gaskets (2), the valve rod supports (11) and support nuts (5) in required quantity, screwing the support nuts (5) after adjusting the proper positions until copper cushion blocks (9) clamp a valve rod (18), and repeating the steps to install another group of valve rod supports (11).
(9) The conical roller bearing (14) is installed in a corresponding hole of the device chassis (12), and the transmission shaft body (13) and the conical roller bearing (14) are installed in a matched mode.
(10) The other end of the transmission rubber belt (15) is arranged on the transmission shaft body (13), and the whole device is shown in figure 2.
(11) Will the utility model discloses place on the bench drill operation panel, with bench drill anchor clamps clamping device chassis (12), make the integrated device firmly fix on the operation panel.
(12) The bench drill main shaft height is adjusted, the main shaft height is fixed after the upper cylinder of the transmission shaft body (13) penetrates through the conical hole of the bench drill, and the conical hole is locked, so that the bench drill is firmly connected with the transmission shaft body (13).
(13) And adjusting the rotating speed of the bench drilling machine according to the flushing condition of the valve core, and starting to grind.
(14) Observe the case and grind the condition, grind to quality standard after, close bench drill, break off bench drill and whole device and all be connected the back, tear the whole device down.
(15) And (5) loosening the bracket nut (5), and detaching the valve rod and the valve core assembly to finish the grinding work.
The utility model discloses a theory of operation does: when the valve core of the valve with the type that the grinding valve core can not be separated from the valve rod is ground, the special valve core grinding device is fixedly installed by the installation mode, the table type rotary table is used as a power source, and the operating table is used as an installation plane. Bench drill rotates and drives transmission axis body (13), and transmission axis body (13) use transmission rubber tape (15) to transmit to the valve case as the medium with rotating, makes case and abrasive disc (7) produce relative motion, utilizes the grinding medium to grind the case. The utility model discloses protect valve equipment at the grinding in-process splendid attire, avoided causing secondary damage to valve rod and case owing to improper operation.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention includes but is not limited to the embodiments described in the detailed description, as well as other embodiments derived from the technical solutions of the present invention by those skilled in the art, which also belong to the scope of the present invention.
Claims (7)
1. The utility model provides a grinder for repairing valve case which characterized in that: the grinding device comprises a device chassis, a supporting bracket, a grinding disc, a tapered roller bearing, a valve rod bracket and a transmission belt, wherein the supporting bracket, the grinding disc and the transmission shaft body are arranged on the device chassis along the central line of the device chassis; one end of the valve rod support is installed on the supporting support, the other end of the valve rod support is installed together with the copper cushion block, and the transmission belt is installed on the transmission shaft body and the grinding valve core to achieve the transmission function.
2. The grinding apparatus for repairing a valve cartridge of claim 1, wherein: the mounting mode of the supporting bracket and the device chassis is as follows: the front part of the device chassis is fixedly provided with a slideway, and a support bracket is arranged on the slideway and is fastened through a limiting jackscrew at the side end of the slideway.
3. The grinding apparatus for repairing a valve cartridge of claim 1, wherein: the mounting mode of the grinding disc and the device chassis is as follows: the grinding disk axial is installed in the mounting hole that device chassis middle part was equipped with, and the grinding disk is outer along fixing through three grinding disk support and grinding disk fastening bolt.
4. The grinding apparatus for repairing a valve cartridge of claim 1, wherein: the mounting mode of the tapered roller bearing and the device chassis is as follows: the valve rod support is installed together with the top and the middle of the support through a support bolt and a support nut.
5. The grinding apparatus for repairing a valve cartridge of claim 4, wherein: and an adjusting gasket is arranged between the support nut and the valve rod support, and the adjusting gasket is one or more than one.
6. The grinding apparatus for repairing a valve cartridge of claim 1, wherein: the valve rod support is installed together with the copper cushion block through the cushion block bolt.
7. The grinding apparatus for repairing a valve cartridge of claim 1, wherein: the transmission belt uses a fluororubber belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221461490.1U CN217800784U (en) | 2022-06-13 | 2022-06-13 | Grinding device for repairing valve core of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221461490.1U CN217800784U (en) | 2022-06-13 | 2022-06-13 | Grinding device for repairing valve core of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217800784U true CN217800784U (en) | 2022-11-15 |
Family
ID=83991134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221461490.1U Active CN217800784U (en) | 2022-06-13 | 2022-06-13 | Grinding device for repairing valve core of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217800784U (en) |
-
2022
- 2022-06-13 CN CN202221461490.1U patent/CN217800784U/en active Active
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| GR01 | Patent grant |