CN210255661U - Rolling polishing device for needle valve rod - Google Patents
Rolling polishing device for needle valve rod Download PDFInfo
- Publication number
- CN210255661U CN210255661U CN201921008245.3U CN201921008245U CN210255661U CN 210255661 U CN210255661 U CN 210255661U CN 201921008245 U CN201921008245 U CN 201921008245U CN 210255661 U CN210255661 U CN 210255661U
- Authority
- CN
- China
- Prior art keywords
- roller unit
- needle valve
- rolling
- valve rod
- rolling roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005096 rolling process Methods 0.000 title claims description 135
- 238000005498 polishing Methods 0.000 title abstract description 41
- 238000001125 extrusion Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000009490 roller compaction Methods 0.000 claims 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a roll extrusion burnishing device for needle valve rod, including first roll extrusion roller unit, second roll extrusion roller unit and third roll extrusion roller unit, first roll extrusion roller unit, second roll extrusion roller unit is a left side, right side symmetry sets up, first roll extrusion roller unit, be provided with the clearance of placing needle valve rod between the second roll extrusion roller unit, first roll extrusion roller unit, roll extrusion roller in the second roll extrusion roller unit is along the same rotation, it rolls to drive needle valve rod, be provided with third roll extrusion roller unit directly over the clearance, the height-adjustable of third roll extrusion roller unit, roll extrusion roller in the third roll extrusion roller unit sticiss behind the needle valve rod outer wall, the direction of rotation of roll extrusion roller in the third roll extrusion roller unit is the same with needle valve rod rolls, realize the roll extrusion burnishing to needle valve rod. The utility model discloses convenient to use, polishing efficiency is high, and degree of automation is strong, has good application prospect.
Description
Technical Field
The utility model relates to a needle valve part processing technology field, concretely relates to roll extrusion burnishing device for needle valve rod.
Background
The needle valve is a valve which can be accurately adjusted, and has wide application, such as cutting distance for flame cutting, and a knob for adjusting flame temperature is the needle valve. Because the valve core at the front end of the valve rod of the needle valve is a sharp cone and is inserted into the valve seat like a needle, the needle valve is famous, is relatively popular in use and has a large demand. Because the needle valve can be adjusted accurately, the performance requirement of the needle valve is higher, and particularly the requirement of the needle valve is met.
As known, the opening and closing of a needle valve are realized by utilizing the up-and-down movement of a valve rod of the needle valve to drive a valve core, so that the valve core and a valve seat perform sealing and opening actions. In order to reduce the abrasion of the valve rod of the needle valve in the up-and-down moving process, the valve rod of the needle valve needs to be polished, as shown in fig. 1, a polishing area A of the valve rod of the needle valve is in rotary contact with a sealing filler of a valve, and plays a key role in the sealing performance of the needle valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming current manual polishing through a root of abrasive paper to the polishing of needle valve rod, efficiency is very low, and the not good problem of polishing effect. The utility model discloses a roll extrusion burnishing device for needle valve rod can make the polishing region (sealing surface) of needle valve rod, has obtained the performance improvement by a wide margin, makes whole valve result of use safe and reliable more to convenient to use, polishing efficiency is high, and degree of automation is strong, has good application prospect.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a rolling and polishing device for a needle valve rod comprises a first rolling roller unit, a second rolling roller unit and a third rolling roller unit,
the first rolling roller unit and the second rolling roller unit are symmetrically arranged left and right, a gap for placing a needle valve rod is arranged between the first rolling roller unit and the second rolling roller unit, the rolling rollers in the first rolling roller unit and the second rolling roller unit rotate along the same direction to drive the needle valve rod to roll,
and a third rolling roller unit is arranged right above the gap, the height of the third rolling roller unit is adjustable, and after rolling rollers in the third rolling roller unit tightly press the outer wall of the valve rod of the needle valve, the rotating direction of the rolling rollers in the third rolling roller unit is the same as the rolling direction of the valve rod of the needle valve, so that the rolling and polishing of the valve rod of the needle valve are realized.
The rolling polishing device for the needle valve rod further comprises a cooling water pipe, and the cooling water pipe is opposite to the needle valve rod placed in the gap.
In the rolling and polishing device for the valve rod of the needle valve, the rolling roller in the third rolling roller unit presses the outer wall of the valve rod of the needle valve, and the pressure is 40 Kg.
The rolling and polishing device for the needle valve rod comprises a first rolling roller unit, a second rolling roller unit and a third rolling roller unit, wherein the first rolling roller unit, the second rolling roller unit and the third rolling roller unit respectively comprise a rolling roller fixing seat and a rolling roller, an installation guide post is arranged at the front end part of the rolling roller and embedded in the rolling roller fixing seat, and the rear end part of the rolling roller is connected with a driving motor for driving the rolling roller to rotate automatically.
According to the rolling and polishing device for the needle valve rod, three driving shafts are arranged in the driving motor and are respectively in driving connection with the rolling rollers in the first rolling roller unit, the second rolling roller unit and the third rolling roller unit, and the three driving shafts are used for realizing synchronous rotation of the rolling rollers.
According to the rolling polishing device for the needle valve rod, the installation guide post is embedded in the rolling roller fixing seat, and the protective lubricating sleeve is arranged between the inside of the rolling roller fixing seat and the installation guide post.
In the rolling polishing device for the needle valve rod, the gap is half of the radius of the needle valve rod.
In the rolling and polishing device for the needle valve rod, the rotating speed of the first rolling roller unit, the second rolling roller unit and the third rolling roller unit which rotate synchronously is 420 r/min.
In the roll finishing device for the needle valve rod, the third roll finishing roller unit is controlled to ascend or descend by the hydraulic cylinder.
The utility model has the advantages that: the utility model discloses a roll extrusion burnishing device for needle valve rod can make the polishing region (sealing surface) of needle valve rod, has obtained the performance improvement by a wide margin, makes whole valve result of use safe and reliable more to convenient to use, polishing efficiency is high, and degree of automation is strong, and concrete advantage is as follows:
(1) the surface hardness of the needle valve rod is improved from the original HRC26 to HRC35, and the surface hardness is increased to improve the wear resistance of the needle valve rod;
(2) the surface roughness of the valve rod of the needle valve is reduced to 0.1 from the original 0.4, so that the surface is smoother, the sealing performance of the valve rod of the needle valve is improved, and the opening torque force is reduced;
(3) the automatic rolling and polishing greatly reduces the production cost and improves the production efficiency;
(4) the traditional polishing method uses artificial sand paper for polishing, has low efficiency, has the influence on human bodies, and is safe and efficient at present, so that the production rate is improved;
(5) each of the time of the traditional polishing method is about 2 minutes, and the polishing device is used at present, each of the time is about 10 seconds and can be completed, and the production efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of the rolling polishing device for the needle valve rod of the present invention.
The designations in the drawings have the following meanings:
1: a first stitching roller unit; 2: a second stitching roller unit; 3: a third stitching roller unit; 301: a rolling roller fixing seat; 302: rolling rollers; 303: installing a guide post; 304: a protective lubricating sleeve; 4: a needle valve stem; 5: a gap; 6: and cooling the water pipe.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the rolling and polishing device for a needle valve rod of the present invention comprises a first rolling roller unit 1, a second rolling roller unit 2 and a third rolling roller unit 3,
the first rolling roller unit 1 and the second rolling roller unit 2 are symmetrically arranged left and right, a gap 5 for placing a needle valve rod 4 is arranged between the first rolling roller unit 1 and the second rolling roller unit 2, the rolling rollers in the first rolling roller unit 1 and the second rolling roller unit 2 rotate along the same direction to drive the needle valve rod 4 to roll,
and a third rolling roller unit 3 is arranged right above the gap 5, the height of the third rolling roller unit 3 is adjustable, and after the rolling rollers in the third rolling roller unit 3 tightly press the outer wall of the needle valve rod 4, the rotating direction of the rolling rollers in the third rolling roller unit 3 is the same as the rolling direction of the needle valve rod 4, so that the rolling and polishing of the needle valve rod 4 are realized.
Preferably, still include condenser tube 6, condenser tube 6 is just to placing needle type valve rod 4 in clearance 5, can cool down including the rolling roller in first rolling roller unit 1, second rolling roller unit 2 and the third rolling roller unit 3, plays the cooling effect to needle type valve rod 4 in the roll extrusion polishing process, guarantees needle type valve rod 4's performance.
Preferably, the rolling rollers in the third rolling roller unit 3 press the outer wall of the needle valve rod 4 tightly, and the pressure is 40Kg, so that the smoothness of the polished area of the needle valve rod 4 can be improved, the surface hardness of the needle valve rod 4 can be improved, and the wear resistance of the needle valve rod can be improved.
Preferably, the first stitching roller unit 1, the second stitching roller unit 2, and the third stitching roller unit 3 each include a stitching roller fixing seat 301 and a stitching roller 302, the front end of the stitching roller 302 is provided with an installation guide post 303, the installation guide post 303 is embedded in the stitching roller fixing seat 301, the rear end of the stitching roller 302 is connected with a driving motor for driving the stitching roller 302 to rotate automatically, the driving motor is used for controlling the synchronous rotation of each stitching roller 302, and specifically, the driving motor is provided with three driving shafts which are respectively in driving connection with the stitching rollers 302 in the first stitching roller unit 1, the second stitching roller unit 2, and the third stitching roller unit 3, so as to realize the synchronous rotation of each stitching roller 302.
Preferably, the installation guide post 303 is embedded in the rolling roller fixing seat 301, and a protective lubricating sleeve 304 is arranged between the rolling roller fixing seat 301 and the installation guide post 303, so that the self-moving effect of the rolling roller 302 can be ensured.
Preferably, the gap 5 is half of the radius of the needle valve rod 4, so that the needle valve rod 4 can be ensured to leak out of the upper surface of the rolling roller after being placed in the gap 5, and when the third rolling roller unit 3 presses down for rolling and polishing, the rolling and polishing effect of the needle valve rod 4 is ensured.
Preferably, the rotating speed of the first rolling roller unit 1, the second rolling roller unit 2 and the third rolling roller unit 3 which synchronously rotate is 420r/min, the speed is reasonable in operation, the quality of the valve rod 4 of the rolling polishing needle valve is guaranteed, and the surface hardness and the smoothness are improved.
Preferably, the third stitching roller unit 3 is controlled to ascend or descend by a hydraulic cylinder, the hydraulic cylinder is driven to be conveniently controlled, and the third stitching roller unit 3 is enabled to apply 40Kg of pressure to the needle valve rod 4.
The utility model relates to a rolling polishing method for a needle valve rod, which comprises the following steps,
step (A), lubricating a plurality of needle valve rods;
step (B), starting a driving motor, synchronously rotating the rolling rollers 302 in the first rolling roller unit 1, the second rolling roller unit 2 and the third rolling roller unit 3 at the rotating speed of 420r/min, and starting the cooling water pipe 6;
step (C), the lubricated needle valve rod is placed in a gap 5 between the rolling rollers 302 in the first rolling roller unit 1 and the second rolling roller unit 2;
step (D), controlling the third rolling roller unit 3 to descend through a hydraulic cylinder, enabling the rolling rollers 302 of the third rolling roller unit 3 to abut against the outer wall of the valve rod of the needle valve, and applying 40Kg of pressure;
step (E), rolling rollers 302 of the first rolling roller unit 1, the second rolling roller unit 2 and the third rolling roller unit 3 roll and polish the needle valve rod for 8 s;
and (F) controlling the third rolling roller unit 3 to ascend through a hydraulic cylinder, taking out the needle valve rod after rolling and polishing, repeating the steps (C) to (F), and performing rolling and polishing treatment on the next needle valve rod.
To sum up, the utility model discloses a roll extrusion burnishing device for needle valve rod, convenient operation can make the polishing region (sealing surface) of needle valve rod, has obtained the performance improvement by a wide margin, makes whole valve result of use safe and reliable more to convenient to use, polishing efficiency is high, and degree of automation is strong, and concrete advantage is as follows:
(1) the surface hardness of the needle valve rod is improved from the original HRC26 to HRC35, and the surface hardness is increased to improve the wear resistance of the needle valve rod;
(2) the surface roughness of the valve rod of the needle valve is reduced to 0.1 from the original 0.4, so that the surface is smoother, the sealing performance of the valve rod of the needle valve is improved, and the opening torque force is reduced;
(3) the automatic rolling and polishing greatly reduces the production cost and improves the production efficiency;
(4) the traditional polishing method uses artificial sand paper for polishing, has low efficiency, has the influence on human bodies, and is safe and efficient at present, so that the production rate is improved;
(5) each of the time of the traditional polishing method is about 2 minutes, and the polishing device is used at present, each of the time is about 10 seconds and can be completed, and the production efficiency is greatly improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a roll extrusion burnishing device for needle type valve rod which characterized in that: comprises a first stitching roller unit (1), a second stitching roller unit (2) and a third stitching roller unit (3),
the first rolling roller unit (1) and the second rolling roller unit (2) are symmetrically arranged left and right, a gap (5) for placing a needle valve rod (4) is arranged between the first rolling roller unit (1) and the second rolling roller unit (2), the rolling rollers in the first rolling roller unit (1) and the second rolling roller unit (2) rotate along the same direction to drive the needle valve rod (4) to roll,
and a third rolling roller unit (3) is arranged right above the gap (5), the height of the third rolling roller unit (3) can be adjusted, after rolling rollers in the third rolling roller unit (3) tightly press the outer wall of the needle valve rod (4), the rotating direction of the rolling rollers in the third rolling roller unit (3) is the same as the rolling direction of the needle valve rod (4), and the needle valve rod (4) is rolled and polished.
2. The roll finishing apparatus for a needle valve stem as claimed in claim 1, wherein: the needle type valve is characterized by further comprising a cooling water pipe (6), wherein the cooling water pipe (6) is opposite to the needle type valve rod (4) placed in the gap (5).
3. The roll finishing apparatus for a needle valve stem as claimed in claim 1, wherein: and the rolling rollers in the third rolling roller unit (3) press the outer wall of the valve rod (4) of the needle valve, and the pressure is 40 Kg.
4. The roll finishing apparatus for a needle valve stem as claimed in claim 1, wherein: first roller compaction roller unit (1), second roller compaction roller unit (2), third roller compaction roller unit (3) all include roller compaction roller fixing base (301), roller compaction roller (302), the preceding tip of roller compaction roller (302) is provided with installation guide post (303), installation guide post (303) are inlayed and are established in roller compaction roller fixing base (301), the back end connection of roller compaction roller (302) has its self-rotation of drive motor.
5. The roll finishing apparatus for a needle valve stem according to claim 4, wherein: and three driving shafts are arranged in the driving motor and are respectively in driving connection with the rolling rollers (302) in the first rolling roller unit (1), the second rolling roller unit (2) and the third rolling roller unit (3) for realizing synchronous rotation of the rolling rollers (302).
6. The roll finishing apparatus for a needle valve stem according to claim 4, wherein: installation guide post (303) inlay and establish in rolling roller fixing base (301), be provided with between rolling roller fixing base (301) and installation guide post (303) and protect lubricated cover (304).
7. The roll finishing apparatus for a needle valve stem as claimed in claim 1, wherein: the clearance (5) is half of the radius of the needle valve rod (4).
8. The roll finishing apparatus for a needle valve stem according to claim 5, wherein: the synchronous rotation speed of the first stitching roller unit (1), the second stitching roller unit (2) and the third stitching roller unit (3) is 420 r/min.
9. The roll finishing apparatus for a needle valve stem as claimed in claim 1, wherein: the third rolling roller unit (3) is controlled to ascend or descend by a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921008245.3U CN210255661U (en) | 2019-07-01 | 2019-07-01 | Rolling polishing device for needle valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921008245.3U CN210255661U (en) | 2019-07-01 | 2019-07-01 | Rolling polishing device for needle valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210255661U true CN210255661U (en) | 2020-04-07 |
Family
ID=70046299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921008245.3U Expired - Fee Related CN210255661U (en) | 2019-07-01 | 2019-07-01 | Rolling polishing device for needle valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210255661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216575A (en) * | 2019-07-01 | 2019-09-10 | 江苏华太电力仪表有限公司 | A kind of rolling burnishing device and method for needle valve valve rod |
-
2019
- 2019-07-01 CN CN201921008245.3U patent/CN210255661U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216575A (en) * | 2019-07-01 | 2019-09-10 | 江苏华太电力仪表有限公司 | A kind of rolling burnishing device and method for needle valve valve rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |