CN205026036U - Spiral transmission of static pressure - Google Patents
Spiral transmission of static pressure Download PDFInfo
- Publication number
- CN205026036U CN205026036U CN201520701083.7U CN201520701083U CN205026036U CN 205026036 U CN205026036 U CN 205026036U CN 201520701083 U CN201520701083 U CN 201520701083U CN 205026036 U CN205026036 U CN 205026036U
- Authority
- CN
- China
- Prior art keywords
- support
- oilhole
- screw rod
- slide block
- static pressure
- 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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- Transmission Devices (AREA)
Abstract
The utility model relates to a transmission field discloses a spiral transmission of static pressure, including screw rod, frame, and screw rod and frame adoption threaded connection, the end part of the screw rod still threaded connection has a slider, and slider sliding connection has all opened the oilhole on the both sides face of thread on the frame on the frame, the oilhole is linked together through the oil transportation way of establishing on the frame, open at the thread top of frame has the oilhole, and this oilhole is said continuously with the oil extraction of establishing on the frame. The spiral transmission of static pressure that this scheme provided, long service life, durable, transmission precision is high, and the transmission speed piece is applicable to the strict chemical production equipment of transmission precision.
Description
Technical field
The utility model relates to transmission device field, particularly relates to the spiral transmission device of a kind of static pressure.
Background technique
In machinery industry, mechanism driving occupies high ratio in whole field, the mode that tradition realizes mechanism driving is a lot, the realization of its most function needs based on high precise equipment, is aided with special device, such as worm type of reduction gearing, gear rack speed reducer etc., power screw realize by screwing between screw thread facing the mechanical transmission that rotation motion and straight line motion change.For the power screw on chemical industry equipment, strict control is needed to stoichiometry, so higher to the transmission precision prescribed of equipment, mostly power screw on current chemical industry equipment are to adopt common thread transmission, be straight line motion by convert rotational motion, easily occurring play between thread, is that transmission accuracy is low, transmission speed depends on the length of thread simultaneously, and transmission speed is limited.
Model utility content
The utility model is intended to provide a kind of transmission accuracy high, the spiral transmission device of static pressure that transmission speed is fast.
The spiral transmission device of static pressure in this programme, comprise screw rod, support, screw rod and support adopt and are threaded, it is characterized in that: described screw rod end has also been threaded slide block, skid is connected on support, on support thread bi-side on all have side oilhole, described each side oilhole is connected by the oil transportation road be located on support; The thread top of support has top oilhole, and this top oilhole is connected with the oil expulsion channel be located on support.
Beneficial effect: rotary screw, screw rod is screwfeed on support, also carry out spiral between screw rod and slide block, the movement travel due to slide block equals the screw rod amount of feed that is relative and support and adds the amount of feed of top slide block relative to screw rod, and the feed speed of slide block is accelerated simultaneously; The threaded connection place of support is provided with oilhole, oil transportation road and oil expulsion channel, and the thread of screw rod and the thread of support are separated by the oil film that the pressure oil that oil supply system provides is formed, and what namely adopt is static pressure spiral, not wearing and tearing between thread, thus will extend working life; Simultaneously oil film can also absorbing and eliminate gap, compensates the manufacturing tolerances between body and valve rod, makes power screw precision high, thus the degree of regulation of valve body is uprised.The spiral transmission device of the static pressure that the program provides, long service life, durable, transmission accuracy is high, transmission speed block, is applicable to the chemical production equipment that transmission accuracy requirement is strict.
Further, the oilhole on the side that the thread on described support parallels adopts same oil transportation road to be communicated with, and two oil transportation roads corresponding to the side in both direction are connected, and unidirectional thread side adopts same oil transportation road, and pressure oil is evenly distributed.
Further, described support is provided with chute, and the upper end-face edge of described chute and the bottom edge of slide block are respectively provided with convex shoulder, and the convex shoulder of slide block is fastened on below the convex shoulder of chute, limits the movement of slide block in the vertical direction, avoids slide block in sliding process to beat.
Further, the bottom of described slide block is provided with wheel, and the slip of slide block and chute is become rolling, slides more smooth and easy.
Further, described screw rod is provided with handle away from one end of slide block, facilitates the rotation of screw rod, improves operability.
Accompanying drawing explanation
Fig. 1 is the structural representation of the spiral drive arrangement embodiment of the utility model static pressure;
Fig. 2 is the structural representation at A place in Fig. 1.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: support 1, chute 11, oil transportation road 12, oil expulsion channel 13, slide block 2, wheel 21, screw rod 3, handle 31.
Embodiment is substantially as shown in Figures 1 and 2: the spiral transmission device of this static pressure, comprise screw rod 3, support 1, screw rod 3 and support 1 adopt and are threaded, screw rod 3 end thread is connected with slide block 2, slide block 2 is slidably connected on support 1, on support 1 thread bi-side on have oilhole, support 1 is processed with oil transportation road 12, and oilhole is connected with this oil transportation road 12; Oilhole on the side that thread on support 1 parallels adopts same oil transportation road 12 to be communicated with, and two oil transportation roads 12 corresponding to the side in both direction are connected, and unidirectional thread side adopts same oil transportation road 12, and pressure oil is evenly distributed.The thread top of support 1 has oilhole, and this oilhole is connected with the oil expulsion channel 13 be located on support 1.
Support 1 is provided with chute 11, and the upper end-face edge of described chute 11 and the bottom edge of slide block 2 are respectively provided with convex shoulder, and the convex shoulder of slide block 2 is fastened on below the convex shoulder of chute 11, limits the movement of slide block 2 in the vertical direction, avoids slide block 2 in sliding process to beat.The bottom of slide block 2 is provided with wheel 21, the slip of slide block 2 and chute 11 is become rolling, slides more smooth and easy.Screw rod 3 is provided with handle 31 away from one end of slide block 2, facilitates the rotation of screw rod 3, improves operability.
Working procedure: handle with sleeve 31 rotary screw 3, screw rod 3 screwfeed on support 1, also carry out spiral between screw rod 3 and slide block 2, slide block 2 also produces feed movement, thus is the straight line motion of slide block 2 by the convert rotational motion of screw rod 3 simultaneously.The movement travel of slide block 2 equals screw rod 3 amount of feed that is relative and support 1 and adds the amount of feed of top slide block 2 relative to screw rod 3, and the feed speed of slide block 2 is accelerated.The threaded connection place of support 1 is processed with oilhole, oil transportation road 12 and oil expulsion channel 13, the thread of screw rod 3 and the thread of support 1 are separated by the oil film that the pressure oil that oil supply system provides is formed, what namely adopt is static pressure spiral, and almost do not have anything to wear and tear between thread, working life is elongated; Simultaneously oil film can also absorbing and eliminate gap, compensates the manufacturing tolerances between body and valve rod, makes power screw precision high, thus the degree of regulation of valve body is uprised.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (5)
1. the spiral transmission device of static pressure, comprise screw rod, support, screw rod and support adopt and are threaded, it is characterized in that: described screw rod end has also been threaded slide block, skid is connected on support, on support thread bi-side on all have side oilhole, described each side oilhole is connected by the oil transportation road be located on support; The thread top of support has top oilhole, and this top oilhole is connected with the oil expulsion channel be located on support.
2. the spiral transmission device of static pressure according to claim 1, is characterized in that: the side oilhole on the side that the thread on described support parallels adopts same oil transportation road to be communicated with, and two oil transportation roads corresponding to the side in both direction are connected.
3. the spiral transmission device of static pressure according to claim 2, it is characterized in that: described support is provided with chute, the top of described chute and the bottom of slide block are respectively provided with convex shoulder, the convex shoulder of slide block is fastened on below the convex shoulder of chute.
4. the spiral transmission device of static pressure according to claim 3, is characterized in that: the bottom of described slide block is provided with wheel.
5. the spiral transmission device of static pressure according to claim 4, is characterized in that: described screw rod is provided with handle away from one end of slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701083.7U CN205026036U (en) | 2015-09-11 | 2015-09-11 | Spiral transmission of static pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520701083.7U CN205026036U (en) | 2015-09-11 | 2015-09-11 | Spiral transmission of static pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205026036U true CN205026036U (en) | 2016-02-10 |
Family
ID=55258570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520701083.7U Expired - Fee Related CN205026036U (en) | 2015-09-11 | 2015-09-11 | Spiral transmission of static pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205026036U (en) |
-
2015
- 2015-09-11 CN CN201520701083.7U patent/CN205026036U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20160911 |