CN202746735U - Shifting fork transmission slide block convenient for assembling - Google Patents
Shifting fork transmission slide block convenient for assembling Download PDFInfo
- Publication number
- CN202746735U CN202746735U CN201220472531.7U CN201220472531U CN202746735U CN 202746735 U CN202746735 U CN 202746735U CN 201220472531 U CN201220472531 U CN 201220472531U CN 202746735 U CN202746735 U CN 202746735U
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- assembling
- slide block
- block body
- driving
- block
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- Expired - Lifetime
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Abstract
The utility model discloses a shifting fork transmission slide block convenient for assembling. The shifting fork transmission slide block comprises a transmission slide block body; assembling blocks are arranged on two sides of the transmission slide block body; the surfaces, contacted with the transmission slide block body, of the assembling blocks are inwards sunken to form cylindrical grooves; and strip-shaped through holes are formed at the bottom parts of the grooves and used for communicating two sides of the assembling blocks. According to the shifting fork transmission slide block convenient for assembling, a hollow chamber structure is formed between each assembling block and the transmission slide block body by the grooves and the through holes; the strip-shaped through holes serve as the channels for communicating the hollow chamber with the outside; the end part of a power output shaft is formed into a shape matched with that of each strip-shaped through hole, a bulge at the end part of the power output shaft is inserted into each through hole and rotated in a certain angle, thus the structural characteristic that the diameter of the hollow chamber is more than the minimum diameter of each through hole can be utilized, and as a result, the power output shaft can be connected with the transmission slide block body; and compared with a traditional connection mode, the shifting fork transmission slide block convenient for assembling has the advantages that the assembly is convenient to carry out, the difficulty in assembling can be greatly reduced, the assembly procedures are reduced, the time is saved, and the assembling cost is indirectly reduced.
Description
Technical field
The utility model relates to a kind of shift fork type driving mechanism, specifically refers to a kind of shift fork driving block of being convenient to assemble.
Background technique
Along with the rise of the industries such as the emergence of modern energy, iron and steel, electric power, military project, aerospace industry and oil, rock gas, modern chemical industry, valve and valve actuator become an indispensable staple product of industrial control.In fluid control field and valve automation industry, valve actuator is to realize valve stroking, automatic control and the indispensable valve actuator of remote control.Because control technique, control requirement improve constantly, valve actuator is at aspects such as electrical explosion proof, movement speed, response times, and electric actuator can not meet the demands, and is pneumatic, surge and the final controlling element such as gas-liquid linked and electric liquid interlock is used thus and given birth to.The shift fork type driving mechanism is a topmost constituent element of such final controlling element.
The shift fork type driving mechanism pneumatic, surge, in the gas-liquid linked and electric liquid interlock final controlling element, they all be unable to do without a significant subject: the shift fork transmission case (hereinafter to be referred as the shift fork case) that shift fork casing and shift fork transmitting assemblies form, it is a very important constituent element of shift fork type valve actuator.So-called shifting fork type actuator: the shift fork driving mechanism that is jointly consisted of by shift fork case, the axis of guide, shift fork and pull-fork assembly, under the effect of cylinder (hydraulic pressure) thrust, the cylinder piston straight line motion, change the drive mechanism that declutch shift shaft is exported with the forms of motion of pendulum angle by driving block into.Its work characteristics is: in transmission process, the output torque of final controlling element can change with the change of shift fork rotation angle.Wherein, maximum at the right and left output torque, the neutral position is minimum.These characteristics just in time with angle travel type valve opening or closed position, moment values is maximum, the rule of operation neutral position moment of torsion minimum is consistent, and do not have the moment waste, thereby required cylinder diameter can be less; Secondly, the shift fork of shift fork type pneumatic actuator and shift fork arm height overlap, and greatly save the space.
Pneumatic actuator divides pinion and-rack pneumatic actuator and shift fork type pneumatic actuator: the pinion and-rack pneumatic actuator, use the gear rack interlock and drive principle, so when the gear of design wheel disc, must be very long and very abundant, when 0 ° of two gear, always interlock and be unlikely to break away from, in the time of 90 °, the fully interlock of two wheel discs, therefore, this has fundamentally determined the pinion and-rack final controlling element, build is heavy, and moment of torsion is when larger, and heavy performance is also just increasing, and shift fork type pneumatic actuator produces thus; Shift fork type pneumatic actuator, not only meet requirement of explosion proof, and volume is little, lightweight, moment of torsion is large, because it has adopted unique " single cylinder double-piston-fork type becomes moment of torsion " drive mechanism design, shifting fork type actuator, be that high request according to operating mode produces, will be the epoch of shifting fork type actuator dominate in future.
Present shift fork type transmission mechanism does not have the axis of guide or only has an axis of guide, and being installed between cylinder (oil cylinder) the piston output shaft of shift fork case side and the shift fork rotatingshaft has an arm of force distance.Will produce lateral force at casing, shift fork rotatingshaft like this, this lateral force harm is very large, not only reduce transmission efficiency, increase the lateral force of shift fork bearing, cylinder piston and bearing, also reduced simultaneously the output rigidity of piston shaft, and the shift fork operation is also unstable, and then affects the reliability of transmission.
The model utility content
The purpose of this utility model is to provide a kind of shift fork driving block of being convenient to assemble, be used for being installed in the shift fork driving mechanism that leads in two weeks, solve in the present shift fork drive mechanism because of the unreasonable the problems referred to above brought of self structure design, reach and eliminate lateral force, improve transmission efficiency, reduce the purpose of assembling difficulty.
The purpose of this utility model is achieved through the following technical solutions:
A kind of shift fork driving block of being convenient to assemble, comprise the driving block body, both sides at the driving block body are equipped with assembling block, what described assembling block contacted with the driving block body forms cylinder shape groove towards sunken inside, be provided with the through hole of strip at bottom portion of groove, the through hole of strip is communicated with the both sides of assembling block.Driving block body integral body is cuboid, can shear a part of corner angle, reduce whole weight and volume, assembling block is installed in two sides at the driving block body, assembling block integral body is cuboid, what assembling block contacted with the driving block body forms groove towards sunken inside, it is cylindric that groove is, be provided with the through hole of strip at bottom portion of groove, the integrant cavity of groove and through hole also is communicated with two sides of assembling block, two assembling blocks are connected with the driving block body by modes such as bolts, groove and through hole form cavity structure between assembling block and driving block body, the through hole of strip is as the passage of this cavity with the external world, the shape that the through hole with strip is complementary is arranged in the output power end of axle, behind the projection insertion through hole with the end, the diameter that just can the utilize cavity structural feature greater than the minimum diameter of through hole rotates a certain angle, the axle that outputs power is connected with the driving block body, with respect to traditional Connecting format, be convenient to very much assembling, greatly reduce difficulty and the operation of assembling, save the time, in a disguised form reduced assembly cost.
Being provided with two at described driving block body is parallel to each other and perpendicular to the pilot hole of assembling block, the slide block driving pin that runs through the driving block body is installed in driving block body side, the axis of slide block driving pin is set with drive block perpendicular to the plane at two pilot hole axis places at the slide block driving pin that protrudes from the driving block body.Be provided with two pilot holes at the driving block body, pilot hole is perpendicular to assembling block, the axis of pilot hole is parallel to each other, the side opening of driving block body is provided with pilot hole, the slide block driving pin is installed in pilot hole, pilot hole is through the side of driving block body, its axis is vertical with the plane, axis place of two pilot holes, and the slide block driving pin is positioned on the symmetrical line of two pilot hole axis, the length of slide block driving pin is greater than the length of pilot hole, be set with drive block at the slide block driving pin that protrudes from the driving block body, drive block can freely rotate around the slide block driving pin, two axis of guides are passed respectively pilot hole, utilize assembling block that the driving block body is installed on the pto＝power take-off, two drive blocks are enclosed within respectively in the chute of two shifting fork pieces, pto＝power take-off is axially done back and forth movement at it, by drive block thrust is passed to shifting fork piece, shifting fork piece drives rotating cylinder and rotates in rotation process, finish the process of shift fork transmission, with respect to traditional shift fork drive mechanism, owing to being provided with two pilot holes, two axis of guides are installed in pilot hole, the slide block driving pin is between two axis of guides, so that driving block is merely able to along axis of guide direction moving linearly, in the relatively-stationary situation in slide block driving pin position, the thrust that is applied on the driving block body needs only parallel with the axis of guide, the thrust application point can act on drive block in the arbitrary position, the moment of torsion curve of output of final controlling element can not change, so, the quantity of cylinder and the relative position that is installed on the shift fork case just can be adjusted as required, just more are superior to traditional final controlling element on stressed position and spatial design.
Be provided with breach at described assembling block, breach is positioned on the elongation line of pilot hole, and the diameter of its diameter and pilot hole is complementary.Specifically, be cuboid on the appearance integral of assembling block, its volume ratio driving block body is little, it offers breach in both sides up and down, and breach is the extension of pilot hole, in the middle of two assembling blocks are fastened on the driving block body, compact structure is convenient to processing.
In described pilot hole inside slide bushing is installed.Further, as further improvement of the utility model, employing arranges slide bushing in pilot hole, and the structural type of the axis of guide being passed slide bushing, can reduce the friction between driving block body and the axis of guide, the slide bushing that utilization is convenient to change can increase whole working life.
The utility model compared with prior art has following advantage and beneficial effect:
A kind of shift fork driving block of being convenient to assemble of 1 the utility model, two assembling blocks are connected with the driving block body by modes such as bolts, groove and through hole form cavity structure between assembling block and driving block body, the through hole of strip is as the passage of this cavity with the external world, the shape that the through hole with strip is complementary is arranged in the output power end of axle, behind the projection insertion through hole with the end, the diameter that just can the utilize cavity structural feature greater than the minimum diameter of through hole rotates a certain angle, the axle that outputs power is connected with the driving block body, with respect to traditional Connecting format, be convenient to very much assembling, greatly reduce difficulty and the operation of assembling, save the time, in a disguised form reduced assembly cost;
A kind of shift fork driving block of being convenient to assemble of 2 the utility model, with respect to traditional shift fork drive mechanism, owing to being provided with two pilot holes, two axis of guides are installed in pilot hole, the slide block driving pin is between two axis of guides, so that driving block is merely able to along axis of guide direction moving linearly, in the relatively-stationary situation in slide block driving pin position, the thrust that is applied on the driving block body needs only parallel with the axis of guide, the thrust application point can act on drive block in the arbitrary position, the moment of torsion curve of output of final controlling element can not change, so, the quantity of cylinder and the relative position that is installed on the shift fork case just can be adjusted as required, just more are superior to traditional final controlling element on stressed position and spatial design;
A kind of shift fork driving block of being convenient to assemble of 3 the utility model, employing arranges slide bushing in pilot hole, and the structural type of the axis of guide being passed slide bushing, can reduce the friction between driving block body and the axis of guide, the slide bushing that utilization is convenient to change can increase whole working life.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is that the utility model is along the half way up the mountain structural representation of slide block driving pin axis.
Mark and corresponding component title in the accompanying drawing:
6-driving block body, 7-pilot hole, 8-slide block driving pin, 9-drive block, 10-assembling block, 11-breach, 12-slide bushing, 13-pto＝power take-off, 14-groove, 15-through hole, 16-clamping bolt, 17-cover plate.
Embodiment
The utility model is described in further detail below in conjunction with embodiment, but mode of execution of the present utility model is not limited to this.
Embodiment
Shown in Fig. 1 to 2, a kind of shift fork driving block of being convenient to assemble of the utility model, comprise that integral body is the driving block body 6 of cuboid, driving block body 6 can be sheared a part of corner angle, reduce whole weight and volume, be provided with two pilot holes 7 at driving block body 6, the axis of pilot hole 7 is parallel to each other, the slide bushing 12 that can change is installed in pilot hole 7, the side opening of driving block body 6 is provided with pilot hole, slide block driving pin 8 is installed in pilot hole, pilot hole is through the side of driving block body 6, its axis is vertical with the plane, axis place of two pilot holes 7, and slide block driving pin 8 is positioned on the symmetrical line of two pilot hole 7 axis, the length of slide block driving pin 8 is greater than the length of pilot hole, be set with drive block 9 at the slide block driving pin that protrudes from driving block body 6, drive block 9 is connected on slide block driving pin 8 by clamping bolt 16 and cover plate 17, drive block 9 can freely rotate around slide block driving pin 8, at 6 two end faces of driving block body of pilot hole 7 openings assembling block 10 is installed; Be cuboid on the appearance integral of assembling block 10, its volume ratio driving block body 6 is little, descend both sides to offer breach 11 thereon, breach 11 is the extension of pilot hole 7, the diameter of the diameter of breach 11 and pilot hole 11 is complementary, what assembling block 10 contacted with driving block body 6 forms groove 14 towards sunken inside, groove 14 is cylindric, be provided with the through hole 15 of strip in groove 14 bottoms, groove 14 and through hole 15 integrant cavitys also are communicated with two sides of assembling block 10, two assembling blocks 10 are connected with driving block body 6 by modes such as bolts, groove 14 and through hole 15 form cavity structure between assembling block 10 and driving block body 6, the through hole 15 of strip is as the passage of this cavity with the external world, the cross section preferable shape of through hole 15 is circular sealing surface with forming after the parallel lines intercepting, the maximum diameter of the diameter of groove 14 and through hole 15 is complementary, the output power end of axle 13 is provided with the projection that the through hole 15 with strip is complementary, projection is fixed on the pto＝power take-off 13 by a less joint of diameter, by rotational power output shaft 13, can realize being connected or disengaging of pto＝power take-off 13 and driving block body 6.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, any simple modification, the equivalent variations on every foundation technical spirit of the present utility model above embodiment done all fall within the protection domain of the present utility model.
Claims (4)
1. shift fork driving block of being convenient to assemble, comprise driving block body (6), in the both sides of driving block body (6) assembling block (10) is installed, it is characterized in that: what described assembling block (10) contacted with driving block body (6) forms cylinder shape groove (14) towards sunken inside, be provided with the through hole (15) of strip in groove (14) bottom, the through hole of strip (15) is communicated with the both sides of assembling block (10).
2. a kind of shift fork driving block of being convenient to assemble according to claim 1, it is characterized in that: be provided with two at described driving block body (6) and be parallel to each other and perpendicular to the pilot hole (7) of assembling block (10), the slide block driving pin (8) that runs through driving block body (6) is installed in driving block body (6) side, the axis of slide block driving pin (8) is set with drive block (9) perpendicular to the plane at two pilot holes (7) axis place at the slide block driving pin (8) that protrudes from driving block body (6).
3. a kind of shift fork driving block of being convenient to assemble according to claim 2, it is characterized in that: be provided with breach (11) at described assembling block (10), breach (11) is positioned on the elongation line of pilot hole (7), and the diameter of its diameter and pilot hole (7) is complementary.
4. it is characterized in that: in described pilot hole (7) inside slide bushing (12) is installed according to claim 2 or 3 described a kind of shift fork driving blocks of being convenient to assemble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220472531.7U CN202746735U (en) | 2012-09-17 | 2012-09-17 | Shifting fork transmission slide block convenient for assembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220472531.7U CN202746735U (en) | 2012-09-17 | 2012-09-17 | Shifting fork transmission slide block convenient for assembling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746735U true CN202746735U (en) | 2013-02-20 |
Family
ID=47706134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220472531.7U Expired - Lifetime CN202746735U (en) | 2012-09-17 | 2012-09-17 | Shifting fork transmission slide block convenient for assembling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290088A (en) * | 2017-06-29 | 2017-10-24 | 柳州上汽汽车变速器有限公司 | The measuring method of shift fork bushing withdrawal force |
-
2012
- 2012-09-17 CN CN201220472531.7U patent/CN202746735U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290088A (en) * | 2017-06-29 | 2017-10-24 | 柳州上汽汽车变速器有限公司 | The measuring method of shift fork bushing withdrawal force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |