CN212868484U - Low-load ventilation butterfly valve with oil filling hole - Google Patents
Low-load ventilation butterfly valve with oil filling hole Download PDFInfo
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- CN212868484U CN212868484U CN202020800533.9U CN202020800533U CN212868484U CN 212868484 U CN212868484 U CN 212868484U CN 202020800533 U CN202020800533 U CN 202020800533U CN 212868484 U CN212868484 U CN 212868484U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 21
- 239000000945 filler Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims description 22
- 210000004907 gland Anatomy 0.000 claims description 18
- 230000001050 lubricating effect Effects 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 229920001774 Perfluoroether Polymers 0.000 claims description 4
- UJMWVICAENGCRF-UHFFFAOYSA-N oxygen difluoride Chemical compound FOF UJMWVICAENGCRF-UHFFFAOYSA-N 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 25
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 power stations Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model provides a low-load ventilation butterfly valve with an oil filling hole, which comprises a valve body, a valve shaft, a valve plate, a bottom cover and an actuating mechanism; one end of the valve shaft penetrates through the first mounting hole of the valve body to be connected with the actuating mechanism, the other end of the valve shaft penetrates through the second mounting hole of the valve body to be connected with the bottom cover, and shaft heads are respectively arranged between the valve shaft and the first mounting hole and between the valve shaft and the second mounting hole of the valve body; the oil filler point has been seted up on the spindle nose, is equipped with lubricated space between valve shaft and the spindle nose, and the oil filler point is linked together with lubricated space, and the valve shaft is equipped with the retaining ring along its radial extension, and the retaining ring is equipped with two, lies in the both sides in lubricated space respectively, and the diameter of retaining ring is greater than the diameter of the valve shaft of lubricated space department, still overlaps on the valve shaft to be equipped with two sealing ring, and two sealing ring lie in the one side that the retaining ring deviates from lubricated space department. The utility model discloses set up the oil filler point, through the lubricated valve shaft of lubricating oil, prevent that the valve shaft from locking, keep apart the steam simultaneously, play the effect of protection valve body.
Description
Technical Field
The utility model belongs to ventilation butterfly valve field, more specifically relates to a low load ventilation butterfly valve with oil filler point.
Background
The low-load ventilation butterfly valve with the oil filling hole is a regulating valve with a simple structure, is mainly suitable for controlling the flow and the pressure of a low-pressure medium, has the characteristics of simple structure, convenience in operation, light weight and the like, is usually applied to dust-containing cold air or hot air pipelines of ventilation and environmental protection engineering in the industries of chemical engineering, building materials, power stations, glass and the like, and is used as a pipeline control device for regulating the flow or cutting off the gas medium. The low-load ventilation butterfly valve with the oil filler point needs to lubricate the valve shaft after being used for a period of time, so that the abrasion of the valve shaft is reduced, the service life of the valve shaft is prolonged, but the existing low-load ventilation butterfly valve with the oil filler point needs to be disassembled to lubricate a specific part, and the operation is complex. In addition, the existing low-load ventilation butterfly valve with the oil filling hole has poor sealing performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a durable and sealed better low load ventilation butterfly valve that has an oil filler point of effect.
According to one aspect of the utility model, a low-load ventilation butterfly valve with an oil filling hole is provided, which comprises a valve body, a valve shaft, a valve plate, a bottom cover and an actuating mechanism;
one end of the valve shaft penetrates through the first mounting hole of the valve body to be connected with the actuating mechanism, the other end of the valve shaft penetrates through the second mounting hole of the valve body to be connected with the bottom cover, shaft heads are respectively arranged between the valve shaft and the first mounting hole and the second mounting hole of the valve body, graphite packing is filled between the shaft heads and the valve shaft, the graphite packing is fixed through a packing gland, the valve plate is sleeved on the valve shaft, and the valve plate is rotatably mounted in the valve body through the valve shaft;
the lubricating device is characterized in that an oil filler hole is formed in the shaft head, a lubricating gap is formed between the valve shaft and the shaft head, the oil filler hole is communicated with the lubricating gap, a retainer ring is arranged on the valve shaft along the radial extension of the valve shaft, the retainer rings are arranged on the two sides of the lubricating gap and are respectively located, the diameter of each retainer ring is larger than that of the valve shaft at the position of the lubricating gap, two sealing retainer rings are further sleeved on the valve shaft and are respectively located on one sides of the lubricating gaps, and the retainer rings deviate from the retainer rings.
In some embodiments, two stacked brackets are disposed between the actuator and the valve body, one bracket is disposed between the valve body and the bottom cover, and the valve shaft is inserted into the bracket.
In some embodiments, the stub shaft is bolted to the bracket.
In some embodiments, the valve shaft is connected to two stacked holders by a bearing, the bearing is located at the joint of the two stacked holders, and the two stacked holders are connected by a bolt;
the valve shaft is connected with the bottom cover through a bearing, one part of an outer ring of the bearing is connected with the bottom cover, and the other part of the outer ring of the bearing is connected with the support.
In some embodiments, a first shaft head is arranged between the valve shaft and the first mounting hole, graphite packing is filled between the first shaft head and the valve shaft and is fixed by a first packing gland, and the first packing gland is connected with the bracket by a bolt;
and a second shaft head is arranged between the valve shaft and the second mounting hole, graphite packing is filled between the second shaft head and the valve shaft and is fixed through a second packing gland, and the second packing gland is connected with the bracket through a bolt.
In some embodiments, the material of the sealing collar is perfluoro ether rubber.
In some embodiments, the valve plate is provided with three reinforcing ribs perpendicular to the valve shaft, the reinforcing ribs are arranged in parallel, and two symmetrically arranged connecting reinforcing ribs are further arranged between every two reinforcing ribs.
In some embodiments, the actuator is a pneumatic actuator, and includes a pneumatic elastic diaphragm and a rotary rod, the upper end of the valve shaft is provided with a threaded section and a worm wheel, the threaded section of the valve shaft is connected with the rotary rod, and the worm wheel of the valve shaft is connected with a worm provided with a hand wheel mechanism.
The beneficial effects are as follows: the electric actuating mechanism of the low-load ventilation butterfly valve with the oil filling hole drives the valve plate to rotate freely within the range of 90 degrees so as to open and close or adjust the medium flow; the sealing structure is arranged between the valve plate and the valve body, so that the sealing performance of the butterfly valve is better when the butterfly valve is in a closed state; the utility model discloses set up the oil filler point, through the lubricated valve shaft of lubricating oil, prevent that the valve shaft from locking, keep apart the steam simultaneously, play the effect of protection valve body.
Drawings
Fig. 1 is a schematic structural view of a low-load ventilation butterfly valve with an oil filling hole according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Detailed Description
Fig. 1-2 schematically illustrate a low load vent butterfly valve with an oil filler hole according to an embodiment of the present invention. As shown in fig. 1 to 2, the low-load ventilation butterfly valve with the oil filling hole comprises a valve body 1, a valve shaft 2, a valve plate 3, a bottom cover and an actuating mechanism 5.
Both end surfaces of the valve body 1 are provided with coupling flanges 11 for coupling pipes, thereby allowing it to be installed in a pipe for use. The side wall of the valve body 1 is respectively provided with a first mounting hole and a second mounting hole which are corresponding and used for mounting the valve shaft 2. The valve shaft 2 is connected to the actuator 5 through the first mounting hole. In this embodiment, the actuator 5 is an electric actuator 5. In order to reinforce the connection of the valve spindle 2 and the actuator 5, two supports 6 are provided between the valve body 1 and the actuator 5. The two are placed in a stack and connected by bolts. The valve shaft 2 is connected with the actuating mechanism 5 through two brackets 6 in sequence. The valve shaft 2 is connected with the two brackets 6 through a bearing, and the bearing is arranged at the joint of the two brackets 6. Thereby enabling the valve shaft 2 to be rotatably mounted in the holder 6. A first spindle head 71 is arranged between the valve shaft 2 and the first mounting hole of the valve body 1. The first axle head 71 comprises a first axle head 71 mounting tube and a first axle head 71 end cover arranged along the vertical direction of the first axle head 71 mounting tube. The first spindle head 71 mounting pipe body is arranged between the valve shaft 2 and the first mounting hole of the valve body 1 in a penetrating mode. The end cover of the first shaft head 71 is connected with the bracket 6 through bolts. Graphite packing 81 is filled between the first spindle head 71 mounting pipe and the valve shaft 2, and the graphite packing 81 is fixed between the valve shaft 2 and the spindle head through a packing gland 82. The packing gland 82 includes a gland body and a gland end cap disposed in a vertical direction along the gland body. The end part of the gland pipe body is clamped between the first shaft head 71 installation pipe body and the valve shaft 2, and the main part of the gland pipe body is clamped between the support 6 and the valve shaft 2. The gland end cover is connected with the bracket 6 through bolts. In order to protect the valve shaft 2, prevent the valve shaft 2 from locking and isolate water vapor, the shaft head is provided with an oil hole 73. A lubrication gap 91 is provided between the valve shaft 2 and the first spindle head 71. The oil filler hole 73 communicates with the lubrication gap 91. In this embodiment, the oil filler hole 73 is provided perpendicularly to the lubrication gap 91. The lubricating oil is injected into the lubricating gap 91 between the valve shaft 2 and the first spindle head 71 through the oil filler hole 73. The valve shaft 2 is provided with two retaining rings 92 extending in the radial direction, and the two retaining rings 92 are respectively located on two sides of the lubricating gap 91. The diameter of the retainer ring 92 is larger than the diameter of the valve shaft 2 at the lubrication gap 91, thereby preventing leakage of the lubricating oil. The valve shaft 2 is further sleeved with two sealing check rings 93 which are respectively positioned on one sides of the check rings 92 departing from the lubricating gap 91. Specifically, the valve shaft 2 is provided with a circular groove, and the sealing retainer ring 93 is clamped in the circular groove. Thereby further preventing leakage of the lubricating oil. In this embodiment, the material of the sealing retainer ring 93 is perfluoro ether rubber, which has the long-term effect of sealing parts, is durable, and can save the maintenance cost. The valve shaft 2 passes through the second mounting hole and is coupled to the lower cover by a bearing, thereby enabling the valve shaft 2 to rotate. In order to reinforce the connection between the valve spindle 2 and the bottom cover, a bracket 6 is provided between the bottom cover and the valve body 1. The bottom cover is fixedly connected with the bracket 6 through bolts. The valve shaft 2 is mounted in a holder 6. The outer ring of the bearing is partly in the bottom cover and partly in the bracket 6. A second spindle head 72 is arranged between the valve shaft 2 and the second mounting hole of the valve body 1. The second axle head 72 includes a second axle head 72 mounting tube and a second axle head 72 end cap disposed in a perpendicular orientation to the second axle head 72 mounting tube. The second shaft head 72 is installed between the valve shaft 2 and the second installation hole of the valve body 1. The end cover of the second shaft head 72 is connected with the bracket 6 through bolts. In order to protect the valve shaft 2, prevent the valve shaft 2 from locking and isolate water vapor, the shaft head is provided with an oil hole 73. A lubrication gap 91 is provided between the valve shaft 2 and the second spindle head 72. The lubricating oil is injected into the lubricating gap 91 between the valve shaft 2 and the first spindle head 71 through the oil filler hole 73. The valve shaft 2 is provided with two retaining rings 92 extending in the radial direction, and the two retaining rings 92 are respectively located on two sides of the lubricating gap 91. The diameter of the retainer ring 92 is larger than the diameter of the valve shaft 2 at the lubrication gap 91, thereby preventing leakage of the lubricating oil. The valve shaft 2 is further sleeved with two sealing check rings 93 which are respectively positioned on one sides of the check rings 92 departing from the lubricating gap 91. Specifically, the valve shaft 2 is provided with a circular groove, and the sealing retainer ring 93 is clamped in the circular groove. Thereby further preventing leakage of the lubricating oil. In this embodiment, the material of the sealing retainer ring 93 is perfluoro ether rubber, which has the long-term effect of sealing parts, is durable, and can save the maintenance cost.
The valve plate 3 is rotatably mounted in the valve body 1 via a valve shaft 2. Specifically, the valve plate 3 runs through its radial center through-hole that is equipped with, and the valve shaft 2 is fixed to wear to establish in the center through-hole of valve plate 3, and the rotation of valve shaft 2 drives the rotation of valve plate 3. The valve plate 3 is provided with three reinforcing ribs 33 perpendicular to the valve shaft 2, so that the strength of the valve plate 3 is improved, in the embodiment, the reinforcing ribs 33 are arranged in parallel, the length of the middle reinforcing rib 33 is longer than the length of the reinforcing ribs 33 on two sides, and two symmetrically arranged connecting reinforcing ribs 34 are further arranged between every two reinforcing ribs 33, so that the strength of the valve plate 3 is further improved.
In this embodiment, the actuator 5 is a pneumatic actuator comprising a pneumatically elastic diaphragm and a lever. The upper end of the valve shaft 2 is provided with a thread section and a worm wheel. The thread section of the valve shaft 2 is connected with a rotary rod of a pneumatic actuator, the actuating mechanism 5 is connected with an air compressor, high-pressure air input from the air compressor exerts thrust on a pneumatic elastic membrane to drive the rotary rod to rotate, and therefore the valve shaft 2 is driven to rotate to change the opening of the valve plate 3, and automatic control adjustment is achieved. The worm wheel of the valve shaft 2 is matched with the worm arranged on the hand wheel mechanism 10 to realize manual rotation transmission.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which all fall within the scope of the invention.
Claims (8)
1. A low-load ventilation butterfly valve with an oil filling hole is characterized by comprising a valve body, a valve shaft, a valve plate, a bottom cover and an actuating mechanism;
one end of the valve shaft penetrates through the first mounting hole of the valve body to be connected with the actuating mechanism, the other end of the valve shaft penetrates through the second mounting hole of the valve body to be connected with the bottom cover, shaft heads are respectively arranged between the valve shaft and the first mounting hole and the second mounting hole of the valve body, graphite packing is filled between the shaft heads and the valve shaft, the graphite packing is fixed through a packing gland, the valve plate is sleeved on the valve shaft, and the valve plate is rotatably mounted in the valve body through the valve shaft;
the lubricating device is characterized in that an oil filler hole is formed in the shaft head, a lubricating gap is formed between the valve shaft and the shaft head, the oil filler hole is communicated with the lubricating gap, a retainer ring is arranged on the valve shaft along the radial extension of the valve shaft, the retainer rings are arranged on the two sides of the lubricating gap and are respectively located, the diameter of each retainer ring is larger than that of the valve shaft at the position of the lubricating gap, two sealing retainer rings are further sleeved on the valve shaft and are respectively located on one sides of the lubricating gaps, and the retainer rings deviate from the retainer rings.
2. The low load ventilation butterfly valve with an oil filler hole of claim 1, wherein two stacked brackets are disposed between said actuator and said valve body, one bracket is disposed between said valve body and said bottom cover, and said valve shaft is inserted into said brackets.
3. The low load vent butterfly valve with oil filler hole of claim 2, wherein said stub shaft is bolted to said bracket.
4. The low-load ventilation butterfly valve with an oil filler hole as claimed in claim 1, wherein said valve shaft is connected to two stacked brackets by a bearing, said bearing being located at the junction of the two stacked brackets, the two stacked brackets being connected by a bolt;
the valve shaft is connected with the bottom cover through a bearing, one part of an outer ring of the bearing is connected with the bottom cover, and the other part of the outer ring of the bearing is connected with the support.
5. The low-load ventilation butterfly valve with the oil filling hole as claimed in claim 2, wherein a first shaft head is arranged between the valve shaft and the first mounting hole, graphite packing is filled between the first shaft head and the valve shaft and is fixed through a first packing gland, and the first packing gland is connected with the bracket through a bolt;
and a second shaft head is arranged between the valve shaft and the second mounting hole, graphite packing is filled between the second shaft head and the valve shaft and is fixed through a second packing gland, and the second packing gland is connected with the bracket through a bolt.
6. The low load vent butterfly valve with an oil filler hole of claim 1, wherein said gasket is comprised of a perfluoroether rubber.
7. The low-load ventilation butterfly valve with the oil filling hole as claimed in claim 1, wherein the valve plate is provided with three reinforcing ribs perpendicular to the valve shaft, the reinforcing ribs are arranged in parallel, and two symmetrically arranged connecting reinforcing ribs are further arranged between every two reinforcing ribs.
8. The low-load ventilation butterfly valve with the oil filling hole as claimed in claim 1, wherein the actuator is a pneumatic actuator and comprises a pneumatic elastic diaphragm and a rotary rod, a threaded section and a worm wheel are arranged at the upper end of the valve shaft, the threaded section of the valve shaft is connected with the rotary rod, and the worm wheel of the valve shaft is connected with a worm provided with a hand wheel mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800533.9U CN212868484U (en) | 2020-05-15 | 2020-05-15 | Low-load ventilation butterfly valve with oil filling hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020800533.9U CN212868484U (en) | 2020-05-15 | 2020-05-15 | Low-load ventilation butterfly valve with oil filling hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212868484U true CN212868484U (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020800533.9U Active CN212868484U (en) | 2020-05-15 | 2020-05-15 | Low-load ventilation butterfly valve with oil filling hole |
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| Country | Link |
|---|---|
| CN (1) | CN212868484U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803234A (en) * | 2021-08-20 | 2021-12-17 | 中建八局第二建设有限公司 | Compressor with high heat dissipation efficiency and heat dissipation method thereof |
| CN116906595A (en) * | 2023-07-10 | 2023-10-20 | 天津祥嘉流体控制系统有限公司 | A metal hard seal butterfly valve |
-
2020
- 2020-05-15 CN CN202020800533.9U patent/CN212868484U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803234A (en) * | 2021-08-20 | 2021-12-17 | 中建八局第二建设有限公司 | Compressor with high heat dissipation efficiency and heat dissipation method thereof |
| CN116906595A (en) * | 2023-07-10 | 2023-10-20 | 天津祥嘉流体控制系统有限公司 | A metal hard seal butterfly valve |
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