CN209781326U - higher oil feed valve of precision - Google Patents
higher oil feed valve of precision Download PDFInfo
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- CN209781326U CN209781326U CN201920427012.0U CN201920427012U CN209781326U CN 209781326 U CN209781326 U CN 209781326U CN 201920427012 U CN201920427012 U CN 201920427012U CN 209781326 U CN209781326 U CN 209781326U
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Abstract
The utility model relates to a hydrovalve technical field discloses a higher oil feed valve of precision, which comprises a valve body, be equipped with the needle on the valve body, it is connected with adjusting screw to rotate on the valve body, the inside regulation hole of having seted up of adjusting screw, the needle passes in the regulation hole inserts the valve body, needle and regulation hole screw-thread fit, a plurality of regulation tooth's socket has evenly been seted up to circumference on the adjusting screw outer wall, it is connected with the regulation pole to rotate on the valve body, the end fixing of adjusting the pole has and adjusts tooth's socket matched with adjusting gear, adjusting gear is incomplete gear, adjusting gear includes one and adjusts the tooth's socket engaged with regulation tooth. The operator can judge the number of turns of the rotating adjusting rod according to the pause feeling during rotation, so that the movement of the valve needle is accurately adjusted, the operation error is reduced, and the precision is improved.
Description
Technical Field
The utility model relates to a hydrovalve technical field, in particular to higher oil feed valve of precision.
Background
The oil feeding valve is also called speed regulating valve, and is mainly used for speed regulation and pressure regulation of hydraulic building experiment machines, metal universal experiment machines and other hydraulic experiment machines.
Chinese patent No. CN2846833Y discloses an experimental machine oil feed valve, wherein an adjusting seat is installed at the left end of a valve body, an adjusting rod is connected in the adjusting seat in a threaded fit manner, a valve sleeve is arranged in the valve body, a valve core capable of sliding in the valve sleeve is arranged in the valve sleeve, a connecting sleeve is arranged at the right end of the valve body, a spring is arranged in the connecting sleeve, an oil inlet cavity is arranged between the left end of the valve sleeve and the valve body, an adjusting cavity is arranged between the oil inlet cavity in the valve body and the adjusting seat, a valve clack is formed on the valve body between the adjusting cavity and the oil inlet cavity, a hole is formed on the valve clack, and a conical section at the right end of the adjusting rod can enter the hole.
when the device is used, an operator manually rotates the adjusting rod, and the adjusting rod moves through the threads between the adjusting rod and the adjusting seat. The operator can manually adjust the movement of the adjusting rod by experience, different people rotate the adjusting rod at different angles, and the operator cannot determine the rotating angle, so that the moving amount of the adjusting rod is not fixed, and the error of the adjusting rod in adjusting is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a higher oil feed valve of precision has the less advantage of operating error.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a higher oil feed valve of precision, includes the valve body, be equipped with the needle on the valve body, it is connected with adjusting screw to rotate on the valve body, adjusting screw has inside seted up the regulation hole, the needle passes in the regulation hole inserts the valve body, needle and regulation hole screw-thread fit, a plurality of regulation tooth's grooves have evenly been seted up to circumference on the adjusting screw outer wall, it is connected with the regulation pole to rotate on the valve body, the end fixing of adjusting the pole has and adjusts tooth's groove matched with adjusting gear, adjusting gear is incomplete gear, adjusting gear includes one and adjusts the tooth's groove engaged with regulation tooth.
Through adopting above-mentioned technical scheme, when operating personnel need adjust the needle, rotate the regulation pole, adjust the pole and drive adjusting gear and rotate, because adjusting gear is incomplete gear, only when adjusting the tooth and adjusting the tooth's socket contact, adjusting gear just can drive adjusting screw and rotate, and adjusting screw passes through the screw thread and drives the regulation pole motion. The length of the adjusting rod which moves for every turn of the adjusting rod is fixed. The operator can judge the length of the movement of the adjusting rod according to the number of the rotating turns. And when the adjusting teeth are not in contact with the adjusting tooth grooves, the adjusting rods are not in contact with the adjusting screws, friction force between the adjusting rods and the adjusting screws is small, and rotation is easy. When the adjusting teeth are contacted with the adjusting tooth grooves, the friction force is increased, and an operator can obviously feel that the resistance is increased. Therefore, an operator can judge the rotating number of turns of the adjusting rod according to the pause feeling during rotation, so that the movement of the valve needle is accurately adjusted, the operation error is reduced, and the precision is improved.
Furthermore, an adjusting knob which is rotatably connected to the outer wall of the valve body is fixed at the end part of the adjusting rod.
Through adopting above-mentioned technical scheme, operating personnel adjusts the pole through the adjust knob rotation, convenient to use.
Furthermore, the adjusting knob is provided with a locking hole, the valve body is provided with a plurality of fixing holes matched with the locking hole, and the locking hole is internally and slidably connected with a fixing pin inserted into the fixing hole.
Through adopting above-mentioned technical scheme, after the needle moved to corresponding position, locking hole and fixed orifices just right, thereby operating personnel inserted the fixed pin in locking hole and the fixed orifices and lock adjust knob, prevented that operating personnel from bumping adjust knob by mistake and leading to the needle motion, influence the precision.
Furthermore, a plurality of placing grooves are uniformly formed in the outer ring of the adjusting gear, the adjusting gear is fixed in any one of the placing grooves, and the feeding gear is detachably connected in the rest of the placing grooves.
Through adopting above-mentioned technical scheme, operating personnel can add according to the demand and feed the tooth, adjusts the pole and rotates the round, and adjusting screw's turned angle grow to change the amount of exercise of needle. The operating personnel can change the speed of movement of needle according to the user demand to improve work efficiency.
Furthermore, a positioning hole is formed in the feeding tooth, a fixed pin hole communicated with the placing groove is formed in the adjusting gear, and a positioning pin inserted into the fixed pin hole penetrates through the positioning hole.
Through adopting above-mentioned technical scheme, it links to each other with the standing groove through the locating pin to feed the tooth, simple structure, easy dismounting.
furthermore, an inwards concave guide groove is formed in the placing groove, and a guide strip inserted into the guide groove is fixed on the side wall of the feeding tooth.
Through adopting above-mentioned technical scheme, in feeding the tooth and inserting the standing groove, the gib block inserted in the guide way. The guide strip and the guide groove are matched with each other to limit and guide the feeding teeth, so that the feeding teeth are prevented from being stuck.
Further, the valve needle is provided with scales.
Through adopting above-mentioned technical scheme, adjusting screw rotates, and the valve body slides in adjusting screw inside. The amount of exercise of valve body is observed to the scale of operating personnel accessible on the adjusting screw, guarantees the precision.
Furthermore, a coarse adjustment rod is rotatably connected to the valve body, a coarse adjustment gear matched with the adjustment tooth groove is fixed at the end of the coarse adjustment rod, and the coarse adjustment gear is a complete gear.
Through adopting above-mentioned technical scheme, operating personnel rotates the coarse adjustment pole, and the coarse adjustment pole drives adjusting screw through the coarse adjustment gear by a wide margin and rotates to drive the needle by a wide margin and move, thereby make needle rapid movement, improve control efficiency.
To sum up, the utility model discloses following beneficial effect has:
1. Through the arrangement of the adjusting gear, an operator can judge the rotating number of turns of the adjusting rod according to the pause sense during rotation, so that the movement of the valve needle is accurately adjusted, the operation error is reduced, and the precision is improved;
2. through the arrangement of the coarse adjustment rod and the coarse adjustment gear, the coarse adjustment rod drives the adjustment screw to rotate through the coarse adjustment gear, so that the valve needle is driven to move greatly, the valve needle moves quickly, and the control efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a schematic structural view of an adjusting device in the embodiment;
FIG. 3 is an enlarged schematic view of section A of FIG. 2;
Fig. 4 is an enlarged schematic view of a portion B in fig. 1.
In the figure, 1, a valve body; 10. a fixing hole; 101. a fixing pin; 11. an oil inlet cavity; 12. a oil passage; 13. an opening; 14. an oil inlet; 15. a working chamber; 16. an oil outlet; 17. an oil discharge port; 18. an oil outlet channel; 19. an oil drainage hole; 2. a valve needle; 3. adjusting screws; 31. an adjustment hole; 32. adjusting the tooth socket; 4. adjusting a rod; 41. an adjusting gear; 411. adjusting teeth; 412. a placement groove; 413. a pin fixing hole; 414. a guide groove; 42. adjusting a knob; 421. a locking hole; 43. a feed tooth; 431. positioning holes; 432. a guide strip; 44. positioning pins; 5. a rough adjusting rod; 51. coarse gear adjustment; 6. a valve housing; 7. a valve core; 8. a compression screw; 81. a pressure relief cavity; 9. a spring.
Detailed Description
the present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
The utility model provides a higher oil feed valve of precision, as figure 1, includes valve body 1, and 1 tip of valve body rotates and is connected with adjusting screw 3, and the inside hollow thread connection of adjusting screw 3 has a needle 2 that inserts in the valve body 1. An oil inlet cavity 11 and an oil passage 12 are formed in the valve body 1, the oil inlet cavity 11 is communicated with the oil passage 12 through an opening 13, and the end part of the valve needle 2 is matched with the opening 13 and can be inserted into the opening 13 to close the opening 13. An oil inlet 14 communicated with the oil inlet cavity 11 is formed in the valve body 1, and oil enters the oil inlet cavity 11 from the oil inlet 14.
As shown in figure 1, a working cavity 15 communicated with the oil inlet cavity 11 is formed in the valve body 1, and the size of the working cavity 15 is larger than that of the oil inlet cavity 11. A valve sleeve 6 is fixed in the working cavity 15, an oil outlet 16 is arranged on the valve body 1 and communicated with the working cavity 15, and an oil outlet channel 18 communicated with the oil outlet 16 is arranged on the valve sleeve 6. The oil returns to the oil outlet 16 through the oil outlet passage 18.
As shown in fig. 1, a valve element 7 is slidably connected in the valve housing 6, and an end of the valve element 7 is directed to the oil inlet chamber 11 and blocks the oil outlet passage 18. The end part of the valve body 1 far away from the adjusting screw 3 is in threaded connection with a compression screw 8 opposite to the valve core 7, the inside of the compression screw 8 is hollow and is a pressure relief cavity 81, and the end part of the valve core 7 far away from the oil inlet cavity 11 is inserted into the pressure relief cavity 81. The end of the valve core 7 is connected with the bottom of the pressure relief cavity 81 through a spring 9.
As shown in figure 1, the valve needle 2 seals the opening 13, oil enters the oil inlet cavity 11 from the oil inlet 14, the oil pressure in the oil inlet cavity 11 is increased to press the valve core 7, the valve core 7 moves backwards until the oil outlet channel 18 is opened, and the oil is discharged from the oil outlet 16. After oil stops entering the oil, the valve core 7 is reset under the action of the spring 9.
As shown in fig. 1, an oil discharge port 17 and an oil drain hole 19 are formed in the valve body 1, one end of the oil passage 12 is communicated with the oil discharge port 17, the other end is communicated with a pressure relief cavity 81, and the oil drain hole 19 is communicated with the pressure relief cavity 81. The valve needle 2 moves backwards to be pulled out of the opening 13, the oil inlet cavity 11 is communicated with the oil passage 12, oil flows into the oil passage 12 from the oil inlet cavity 11, part of the oil is discharged from the oil discharge port 17, and the other part of the oil enters the pressure relief cavity 81 and is discharged through the oil discharge hole 19.
Referring to fig. 1, an operator controls the adjusting screw 3 to rotate, and the adjusting screw 3 drives the valve needle 2 to slide back and forth through threads. The outer wall of the valve needle 2 is provided with scales, and an operator can observe the movement amount of the valve needle 2 through the scales so as to control the size of the opening 13.
Referring to fig. 1, the valve body 1 is provided with an adjusting device for controlling the rotation of the adjusting screw 3. The adjusting device comprises a fine adjusting device and a coarse adjusting device.
As shown in fig. 2, the coarse adjustment means includes a coarse adjustment lever 5 and a coarse adjustment gear 51. The coarse adjustment lever 5 is rotatably connected in the valve body 1 (see fig. 1), the coarse adjustment gear 51 is fixed at the end of the coarse adjustment lever 5 inserted in the valve body 1 (see fig. 1), and the coarse adjustment gear 51 is a complete gear. A plurality of adjusting tooth grooves 32 are uniformly arranged on the outer wall of the adjusting screw 3 in the circumferential direction, and the coarse adjusting gear 51 is meshed with the adjusting tooth grooves 32. The coarse adjustment rod 5 rotates, and the coarse adjustment gear 51 drives the adjustment screw 3 to rotate, so as to drive the valve needle 2 to move.
As shown in fig. 2, the fine adjustment device includes an adjustment rod 4 and an adjustment gear 41, the adjustment rod 4 and the coarse adjustment rod 5 are connected to the valve body 1 (see fig. 1) in parallel and rotatably, the adjustment gear 41 is fixed at the end of the adjustment rod 4 located in the valve body 1 (see fig. 1), the adjustment gear 41 is an incomplete gear, and the adjustment gear 41 is provided with an adjustment tooth 411 engaged with the adjustment tooth slot 32. The adjusting rod 4 rotates a circle, the adjusting teeth 411 only contact with the adjusting tooth groove 32 once, namely the adjusting screw 3 rotates an angle, the rotating angle of the adjusting screw 3 is small, and the adjusting rod is convenient for an operator to control.
As shown in fig. 2 and 3, a plurality of placing grooves 412 are uniformly formed in the circumferential direction of the outer wall of the adjusting gear 41, the adjusting teeth 411 are fixedly welded in one of the placing grooves 412, and the feeding teeth 43 are detachably connected in the other placing grooves 412. An operator can add the feeding teeth 43 according to the requirement, the adjusting rod 4 rotates for a circle, and the rotating angle of the adjusting screw 3 is increased, so that the motion amount of the valve needle 2 is changed. The operator can change the movement speed of the valve needle 2 according to the use requirement, thereby improving the working efficiency.
As shown in fig. 3, the feed gear 43 has a positioning hole 431, the adjustment gear 41 has a positioning pin hole 413 communicating with the placement groove 412, and the positioning pin 44 inserted into the positioning pin hole 413 is inserted into the positioning hole 431. The positioning pin 44 penetrates through the positioning hole 431 and the positioning pin hole 413, so that the feeding teeth 43 are fixed on the adjusting gear 41, the structure is simple, and the assembly and disassembly are convenient.
As shown in fig. 3, concave guide grooves 414 are formed on both sides of the placement groove 412, and guide bars 432 inserted into the guide grooves 414 are fixed to the side walls of the feeding teeth 43. The guide slot 414 and the guide strip 432 cooperate with each other to guide the cooperation of the feeding tooth 43 and the placement groove 412, thereby facilitating the installation of the feeding tooth 43.
As shown in fig. 4, the end of the adjusting rod 4 far from the adjusting gear 41 extends out of the valve body 1 and is fixed with an adjusting knob 42, and an operator controls the rotation of the adjusting rod 4 through the adjusting knob 42, so that the use is convenient.
As shown in fig. 4, the adjusting knob 42 is provided with a locking hole 421, the valve body 1 is provided with a plurality of fixing holes 10 matching with the locking hole 421 in the circumferential direction, and the locking hole 421 is slidably connected with a fixing pin 101 inserted into the fixing hole 10. After the adjusting rod 4 adjusts the position of the valve needle 2, the adjusting knob 42 is locked by the fixing pin 101, so that the valve needle 2 (see fig. 1) is prevented from moving due to mistaken touch on the adjusting knob 42.
The specific implementation process comprises the following steps: an operator adjusts the position of the valve needle 2 through the adjusting device, if the opening 13 is blocked, oil is fed into the oil inlet 14, and the oil hydraulic valve core is discharged from the oil outlet 16; when the opening 13 is opened, part of the oil is discharged from the drain port 17 and part of the oil flows into the relief chamber 81.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a higher oil feed valve of precision, includes valve body (1), be equipped with needle (2) on valve body (1), its characterized in that: rotate on valve body (1) and be connected with adjusting screw (3), adjusting hole (31) have been seted up to adjusting screw (3) inside, needle (2) pass adjusting hole (31) and insert in valve body (1), needle (2) and adjusting hole (31) screw-thread fit, a plurality of regulation tooth's socket (32) have evenly been seted up to circumference on adjusting screw (3) outer wall, it is connected with regulation pole (4) to rotate on valve body (1), the end fixing of adjusting pole (4) has and adjusts tooth's socket (32) matched with adjusting gear (41), adjusting gear (41) are incomplete gear, adjusting gear (41) include one and adjust tooth's socket (32) engaged with regulation tooth (411).
2. The oil feed valve with higher precision as claimed in claim 1, wherein: an adjusting knob (42) which is rotatably connected to the outer wall of the valve body (1) is fixed at the end part of the adjusting rod (4).
3. The oil feed valve with higher precision as claimed in claim 2, wherein: the adjustable valve is characterized in that a locking hole (421) is formed in the adjusting knob (42), a plurality of fixing holes (10) matched with the locking hole (421) are formed in the valve body (1), and a fixing pin (101) inserted into the fixing hole (10) is connected into the locking hole (421) in a sliding mode.
4. The oil feed valve with higher precision as claimed in claim 1, wherein: a plurality of placing grooves (412) are uniformly formed in the outer ring of the adjusting gear (41), the adjusting teeth (411) are fixed in any one of the placing grooves (412), and the feeding teeth (43) are detachably connected in the rest of the placing grooves (412).
5. the oil feed valve with higher precision as claimed in claim 4, wherein: the feeding gear (43) is provided with a positioning hole (431), the adjusting gear (41) is provided with a fixing pin hole (413) communicated with the placing groove (412), and a positioning pin (44) inserted into the fixing pin hole (413) penetrates through the positioning hole (431).
6. The oil feed valve with higher precision as claimed in claim 4, wherein: an inwards concave guide groove (414) is formed in the placing groove (412), and a guide strip (432) inserted into the guide groove (414) is fixed on the side wall of the feeding tooth (43).
7. The oil feed valve with higher precision as claimed in claim 1, wherein: the valve needle (2) is provided with scales.
8. The oil feed valve with higher precision as claimed in claim 7, wherein: the valve is characterized in that a coarse adjusting rod (5) is rotatably connected to the valve body (1), a coarse adjusting gear (51) matched with the adjusting tooth groove (32) is fixed at the end of the coarse adjusting rod (5), and the coarse adjusting gear (51) is a complete gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920427012.0U CN209781326U (en) | 2019-03-29 | 2019-03-29 | higher oil feed valve of precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920427012.0U CN209781326U (en) | 2019-03-29 | 2019-03-29 | higher oil feed valve of precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781326U true CN209781326U (en) | 2019-12-13 |
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ID=68800531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920427012.0U Active CN209781326U (en) | 2019-03-29 | 2019-03-29 | higher oil feed valve of precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303270A (en) * | 2020-10-10 | 2021-02-02 | 盐城市锦东液压机械有限公司 | Ball valve with filtering capability |
-
2019
- 2019-03-29 CN CN201920427012.0U patent/CN209781326U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303270A (en) * | 2020-10-10 | 2021-02-02 | 盐城市锦东液压机械有限公司 | Ball valve with filtering capability |
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