CN103868685A - Supercritical valve water pressure testing platform - Google Patents
Supercritical valve water pressure testing platform Download PDFInfo
- Publication number
- CN103868685A CN103868685A CN201410104409.8A CN201410104409A CN103868685A CN 103868685 A CN103868685 A CN 103868685A CN 201410104409 A CN201410104409 A CN 201410104409A CN 103868685 A CN103868685 A CN 103868685A
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- measured
- screw
- slide unit
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a supercritical valve water pressure testing platform which comprises a base, a valve front end inner-expansion type sealing device, a valve rear end inner-expansion type sealing device, a fixed platform support, a sliding platform support, a fixed platform beam, four screws, a spring sliding platform trolley, a sliding platform and a driving motor. The valve front end inner-expansion type sealing device is installed on the inner side of the fixed platform beam. The valve rear end inner-expansion type sealing device is installed on the inner side of the sliding platform. The sliding platform is located between the fixed platform beam and the sliding platform support. One ends of the four screws are arranged on the four corners of the fixed platform beam respectively. The other ends of the four screws penetrate through the sliding platform and are arranged on the four corners of the sliding platform support respectively. A driven gear of each screw in the sliding platform is fixedly provided with a screw nut. The inner ring of each screw nut is in threaded connection with the corresponding screw. The output shaft of the driving motor can drive a drive gear to rotate. The drive gear can drive the driven gears of the four screws to rotate synchronously through four gear transmission systems. An ejection rod and a middle beam are omitted, so that manufacturing cost is greatly reduced.
Description
Technical field
The present invention relates to valve water test unit technical field, refer to particularly a kind of overcritical valve water pressure testing board.
Background technology
Domestic existing valve water pressure testing board all adopts a push rod to promote slide unit to test valve applied thrust, with four polished rod supporting traverses, and the structure of being furnished with middle Mobile Slide, drive unit adopts hydraulic pump.By compressing, the required thrust of test valve size determines the diameter of push rod, and required thrust is little, and push rod diameter is little, and required thrust is large, and push rod diameter is large.In the time that the hydraulic pressure of valve to be measured is larger, the larger push rod that needs design to match.Such as, if the testing table that design maximum thrust is 20MN, need to design the push rod that a diameter is 415mm, because the diameter of single push rod is larger, so difficulty of processing increases, but also the especially big transmission gear that needs to be equipped with middle moving beam and drive push rod has not only increased manufacturing cost, and, make the one-piece construction of testing table more complicated.
Summary of the invention
Object of the present invention is exactly that a kind of rational in infrastructure, simple to operate, overcritical valve water pressure testing board that difficulty of processing is low will be provided, and this testing table has saved push rod and intermediate transverse girder, and manufacturing cost is significantly reduced.
For realizing this object, the overcritical valve water pressure testing board that the present invention is designed, it comprises base, valve front end internal expansion type packoff and the valve rear end internal expansion type packoff of coupling mutually, be fixed on fixed station bearing and slide unit bearing on base, be fixed on the fixed station crossbeam on fixed station bearing, it is characterized in that: it also comprises four screw mandrels, be positioned at the spring sledge on base, be arranged on the slide unit on spring sledge, be fixed on the drive motor on slide unit, wherein, described valve front end internal expansion type packoff is arranged on the inner side of fixed station crossbeam, valve rear end internal expansion type packoff is arranged on the inner side of slide unit, slide unit is between fixed station crossbeam and slide unit bearing, one end of described four screw mandrels is located at respectively four corners of fixed station crossbeam, the other end of four screw mandrels is through four corners that are located at respectively slide unit bearing after slide unit, in described slide unit, be provided with four gear train assemblies, four screw mandrel follower gears, driving gear, the inner ring of described each screw mandrel follower gear is fixed with feed screw nut, between feed screw nut's inner ring and corresponding screw mandrel, be threaded, the output shaft of drive motor can drive driving gear to rotate, driving gear can drive four screw mandrel follower gears synchronously to rotate by described four gear train assemblies.
In described slide unit, be also fixed with driving gear installation shaft, described driving gear passes through two bearing holder (housing, cover)s in driving gear installation shaft, in driving gear installation shaft between described two bearings, also cover has driving gear axle sleeve, the output shaft end of described drive motor is provided with transmission groove, and the end face of driving gear is provided with the transmission projection of mating with above-mentioned transmission groove.
Described each gear train assembly includes the first follower gear installation shaft and the second follower gear installation shaft that are fixed in slide unit, inner ring is enclosed within the first axle sleeve in the first follower gear installation shaft, inner ring is enclosed within the second axle sleeve in the second follower gear installation shaft, fixed cover is at the first follower gear of the first axle sleeve outer ring, fixed cover is at the second follower gear of the second axle sleeve outer ring, wherein, described the first follower gear can rotate together with the first axle sleeve in the first follower gear installation shaft, the second follower gear can rotate together with the second axle sleeve in the second follower gear installation shaft, each the first follower gear all engages with driving gear, each the first follower gear engages with the second corresponding follower gear respectively, each the second follower gear engages with corresponding screw mandrel follower gear respectively, above-mentioned the first follower gear, the second follower gear and screw mandrel follower gear are realized axial limiting by slide unit and corresponding cover plate, above-mentioned driving gear is realized axial limiting by the output shaft of slide unit and drive motor.
Described valve front end internal expansion type packoff comprises the first vexed plate, be fixed on the first seben on fixed station crossbeam, wherein, the inner side of the first vexed plate offers the first annular groove that valve front end multiple and to be measured mates, the outside of the first vexed plate is fixedly connected with the first seben, on described the first vexed plate, offer intake tunnel, the water inlet of intake tunnel is positioned at the top of the first vexed plate, the water delivering orifice of intake tunnel is positioned at the middle inside of the first vexed plate and can be communicated with valve to be measured, between valve front end to be measured and corresponding the first annular groove, be provided with the first pressure sealing ring, between this first pressure sealing ring and corresponding the first annular groove, be provided with the first O-ring seal, between the first pressure sealing ring and valve front end to be measured, be also provided with the first O-ring seal.
Described valve rear end internal expansion type packoff comprises the second vexed plate, be fixed on the second seben on slide unit, wherein, the inner side of the second vexed plate offers the second annular groove that mate valve multiple and to be measured rear end, the outside of the second vexed plate is fixedly connected with the second seben, on described the second vexed plate, offer exhalant canal, the water inlet of exhalant canal is positioned at the middle inside of the second vexed plate and can be communicated with valve to be measured, the water delivering orifice of exhalant canal is positioned at the bottom of the second vexed plate, the water delivering orifice of described exhalant canal is connected with shutdown valve, between valve to be measured rear end and corresponding the second annular groove, be provided with the second pressure sealing ring, between this second pressure sealing ring and corresponding the second annular groove, be provided with the second O-ring seal, between the second pressure sealing ring and valve to be measured rear end, be also provided with the second O-ring seal.
Described multiple the first annular groove is coaxially arranged, and multiple the second annular grooves are coaxially arranged.
In technique scheme, it also comprises the first valve bracket system to be measured that is positioned at valve front end to be measured below, described the first valve bracket system to be measured comprises the first drive unit, the first urceolus, the first inner core, the first pedestal and the first roller, the first worm screw being fixedly connected with the output shaft of the first drive unit, the first turbine mating with the first worm screw, the first push rod contacting with the first turbine top, described the first inner core is fixed on the first pedestal top, the first roller is all installed in the front-end and back-end of the first pedestal, the first urceolus is enclosed within the first inner core outside, the output shaft of the first drive unit is by the first worm screw and first turbine drive the first push rod catenary motion, the top of the first push rod is arranged in the first inner core, the top of the first push rod can be by withstanding the first urceolus top board by the first urceolus jack-up, described the first valve bracket system to be measured is located on base by the first roller.
In technique scheme, it also comprises the second valve bracket system to be measured that is positioned at below, valve to be measured rear end, described the second valve bracket system to be measured comprises the second drive unit, the second urceolus, the second inner core, the second pedestal, the second roller, coupling arrangement, operating grip, screw rod, the second worm screw being fixedly connected with the output shaft of the second drive unit, the second turbine mating with the second worm screw, the second push rod contacting with the second turbine top, described the second inner core is fixed on the second pedestal top, the second roller is all installed in the front-end and back-end of the second pedestal, the second urceolus is enclosed within the second inner core outside, the output shaft of the second drive unit is by the second worm screw and second turbine drive the second push rod catenary motion, the top of the second push rod is arranged in the second inner core, the top of the second push rod can be by withstanding the second urceolus top board by the second urceolus jack-up, described the second valve bracket system to be measured is arranged on base by the second roller, one end of described screw rod is fixedly connected with operating grip, the other end of screw rod is connected with the second base thread, described screw rod is threaded with the bottom of coupling arrangement, described the second pedestal is fixedly connected with spring sledge by coupling arrangement.
The outside of described fixed station crossbeam is provided with four nuts, and described each nut connects with corresponding wire rod thread.
Described spring sledge comprises base plate, be arranged on the wheel on base plate, be fixed on the spring base at base plate top, the adjusting screw(rod) that passes plate top surface and spring base and be threaded with plate top surface and spring base, the technique nut that is positioned at plate top surface below and is threaded with adjusting screw(rod), the spring bumper cover being threaded with the top of adjusting screw(rod), the set nut that is positioned at spring bumper cover below and is threaded with adjusting screw(rod), be arranged on the spring between spring bumper cover and spring base, wherein, spring bumper cover is withstood on the top of described spring, spring base is withstood in the bottom of spring, described adjusting screw(rod) in the part between spring bumper cover and spring base among spring inner ring.
The present invention drives four feed screw nuts level of synchronization on four screw mandrels to move by drive motor and four gear train assemblies, moving horizontally of four feed screw nuts drives slide unit to move horizontally, finally make the front and back end of valve front end internal expansion type packoff and valve rear end internal expansion type packoff and valve to be measured be adjacent to, can ensure that the overcritical valve hydraulic testing can carry out smoothly.The slide unit that is provided with valve rear end internal expansion type packoff can be realized easily and moving horizontally under drive motor, four gear train assemblies and four feed screw nuts' driving, save push rod and the intermediate transverse girder in original structure, simple in structure, cost reduces greatly.
In addition, in the process that the spring sledge that the present invention arranges in slide unit bottom moves at slide unit, with slide unit synchronizing moving, for the slide unit power that provides support, make four screw mandrels not bear the gravity of slide unit, ensure the stationarity of screw axis to transmission.
Brief description of the drawings
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical sectional view of slide unit in the present invention;
Fig. 4 is the horizontal sectional view of slide unit in the present invention;
Fig. 5 is the main TV structure schematic diagram of the first valve bracket system to be measured in the present invention;
Fig. 6 is the main TV structure schematic diagram of the second valve bracket system to be measured in the present invention;
Fig. 7 is the structural representation of the first valve bracket system running part to be measured in the present invention;
Fig. 8 is the structural representation of the second valve bracket system running part to be measured in the present invention;
Fig. 9 is the structural representation of medi-spring sledge of the present invention;
Figure 10 is the structural representation of internal expansion type packoff part in the present invention.
Wherein, 1-fixed station bearing, 2-fixed station crossbeam, 3-nut, 4-driving gear axle sleeve, 5-bearing, 6-driving gear installation shaft, 7-slide unit, 8-drive motor, the output shaft of 8.1-drive motor, 8.2-transmission groove, 9-slide unit bearing, 10-base, the 11-the second valve bracket system to be measured, the 11.1-the second drive unit, the 11.2-the second worm screw, the 11.3-the second push rod, the 11.4-the second urceolus, the 11.5-the second inner core, the 11.6-the second pedestal, the 11.7-the second roller, 11.8-coupling arrangement, 11.9-operating grip, 11.10-screw rod, 11.11 the-the second turbine, the top board of the 11.12-the second urceolus, 12-spring sledge, 12.1-base plate, 12.2-wheel, 12.3-spring base, 12.4-adjusting screw(rod), 12.5-technique nut, 12.6-spring bumper cover, 12.7-set nut, 12.8-spring, 13-screw mandrel, 14-valve front end internal expansion type packoff, the 14.1-the first vexed plate, the 14.2-the first seben, 14.3-intake tunnel, the 14.4-the first annular groove, the water inlet of 14.5-intake tunnel, the water delivering orifice of 14.6-intake tunnel, the 14.7-the first pressure sealing ring, the 14.8-the first O-ring seal, 15-valve rear end internal expansion type packoff, the 15.1-the second vexed plate, the 15.2-the second seben, 15.3-exhalant canal, the 15.4-the second annular groove, 15.5-exhalant canal water inlet, the water delivering orifice of 15.6-exhalant canal, the 15.7-the second pressure sealing ring, the 15.8-the second O-ring seal, 15.9-shutdown valve, 16-driving gear, 16.1-transmission projection, 17-screw mandrel follower gear, 18-feed screw nut, the 19-the first follower gear installation shaft, the 20-the second follower gear installation shaft, the 21-the first axle sleeve, the 22-the first follower gear, the 23-the second axle sleeve, 24-valve to be measured, the 25-the first valve bracket system to be measured, the 25.1-the first drive unit, the 25.2-the first worm screw, the 25.3-the first push rod, the 25.4-the first urceolus, the 25.5-the first inner core, the 25.6-the first pedestal, the 25.7-the first roller, the top board of the 25.8-the first urceolus, the 25.9-the first turbine, the 26-the second follower gear, 27-cover plate.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Overcritical valve water pressure testing board as shown in Fig. 1～10, it comprises base 10, valve front end internal expansion type packoff 14 and the valve rear end internal expansion type packoff 15 of coupling mutually, be fixed on fixed station bearing 1 and slide unit bearing 9 on base 10, be fixed on the fixed station crossbeam 2 on fixed station bearing 1, it also comprises four screw mandrels 13, be positioned at the spring sledge 12 on base 10, be arranged on the slide unit 7 on spring sledge 12, be fixed on the drive motor 8 on slide unit 7, wherein, described valve front end internal expansion type packoff 14 is arranged on the inner side of fixed station crossbeam 2, valve rear end internal expansion type packoff 15 is arranged on the inner side of slide unit 7, slide unit 7 is between fixed station crossbeam 2 and slide unit bearing 9, one end of described four screw mandrels 13 is located at respectively four corners of fixed station crossbeam 2, the other end of four screw mandrels 13 is through rear four corners that are located at respectively slide unit bearing 9 of slide unit 7, in described slide unit 7, be provided with four gear train assemblies, four screw mandrel follower gears 17, driving gear 16, the inner ring of described each screw mandrel follower gear 17 is fixed with feed screw nut 18, between feed screw nut's 18 inner rings and corresponding screw mandrel 13, be threaded, the output shaft 8.1 of drive motor 8 can drive driving gear 16 to rotate, driving gear 16 can drive four screw mandrel follower gears 17 synchronously to rotate by described four gear train assemblies.
In technique scheme, in described slide unit 7, be also fixed with driving gear installation shaft 6, described driving gear 16 is enclosed within driving gear installation shaft 6 by two bearings 5, in driving gear installation shaft 6 between described two bearings 5, also cover has driving gear axle sleeve 4, output shaft 8.1 ends of described drive motor 8 are provided with transmission groove 8.2, and the end face of driving gear 16 is provided with the transmission projection 16.1 of mating with above-mentioned transmission groove 8.2.There is axial motion for preventing two bearings 5 in described driving gear axle sleeve 4.
Described each gear train assembly includes the first follower gear installation shaft 19 and the second follower gear installation shaft 20 that are fixed in slide unit 7, inner ring is enclosed within the first axle sleeve 21 in the first follower gear installation shaft 19, inner ring is enclosed within the second axle sleeve 23 in the second follower gear installation shaft 20, fixed cover is at the first follower gear 22 of the first axle sleeve 21 outer rings, fixed cover is at the second follower gear 26 of the second axle sleeve 23 outer rings, wherein, described the first follower gear 22 can rotate together with the first axle sleeve 21 in the first follower gear installation shaft 19, the second follower gear 26 can rotate together with the second axle sleeve 23 in the second follower gear installation shaft 20, each the first follower gear 22 all engages with driving gear 16, each the first follower gear 22 engages with the second corresponding follower gear 26 respectively, each the second follower gear 26 engages with corresponding screw mandrel follower gear 17 respectively, above-mentioned the first follower gear 22, the second follower gear 26 and screw mandrel follower gear 17 are realized axial limiting by slide unit 7 and corresponding cover plate 27, above-mentioned driving gear 16 is realized axial limiting by the output shaft 8.1 of slide unit 7 and drive motor 8.
The course of work of such scheme is: when 24, valve to be measured winches to after testing table proper site, the output shaft 8.1 of drive motor 8 drives driving gear 16 to rotate by transmission groove 8.2 and transmission projection 16.1, driving gear 16 drives four the first follower gears 22 to rotate, four the first follower gears 22 drive the second corresponding follower gear 26 to rotate, four the second follower gears 26 drive respectively corresponding screw mandrel follower gear 17 to rotate, screw mandrel follower gear 17 drives the feed screw nut 18 of inner ring to rotate, four feed screw nuts 18 synchronous walking on corresponding screw mandrel 13, drive slide unit 7 tangential movements, until valve front end internal expansion type packoff 14 and valve rear end internal expansion type packoff 15 are assembled to valve to be measured 24 front-end and back-end.In the course of action of testing table, four rhizoid bars 13 have both the function of slide unit 7 guiding and transmission.
In technique scheme, described valve front end internal expansion type packoff 14 comprises the first vexed plate 14.1, be fixed on the first seben 14.2 on fixed station crossbeam 2, wherein, the inner side of the first vexed plate 14.1 offers the first annular groove 14.4 that valve 24 front ends multiple and to be measured mate, the outside of the first vexed plate 14.1 is fixedly connected with the first seben 14.2, on described the first vexed plate 14.1, offer intake tunnel 14.3, the water inlet 14.5 of intake tunnel 14.3 is positioned at the top of the first vexed plate 14.1, the water delivering orifice 14.6 of intake tunnel 14.3 is positioned at the middle inside of the first vexed plate 14.1 and can be communicated with valve 24 to be measured, between valve 24 front ends to be measured and corresponding the first annular groove 14.4, be provided with the first pressure sealing ring 14.7, between this first pressure sealing ring 14.7 and corresponding the first annular groove 14.4, be provided with the first O-ring seal 14.8, between the first pressure sealing ring 14.7 and valve to be measured 24 front ends, be also provided with the first O-ring seal 14.8.
In technique scheme, described valve rear end internal expansion type packoff 15 comprises the second vexed plate 15.1, be fixed on the second seben 15.2 on slide unit 7, wherein, the inner side of the second vexed plate 15.1 offers the second annular groove 15.4 that mate valve multiple and to be measured 24 rear ends, the outside of the second vexed plate 15.1 is fixedly connected with the second seben 15.2, on described the second vexed plate 15.1, offer exhalant canal 15.3, the water inlet 15.5 of exhalant canal 15.3 is positioned at the middle inside of the second vexed plate 15.1 and can be communicated with valve 24 to be measured, the water delivering orifice 15.6 of exhalant canal 15.3 is positioned at the bottom of the second vexed plate 15.1, the water delivering orifice 15.6 of described exhalant canal 15.3 is connected with shutdown valve 15.9, between valve to be measured 24 rear ends and corresponding the second annular groove 15.4, be provided with the second pressure sealing ring 15.7, between this second pressure sealing ring 15.7 and corresponding the second annular groove 15.4, be provided with the second O-ring seal 15.8, between the second pressure sealing ring 15.7 and valve to be measured 24 rear ends, be also provided with the second O-ring seal 15.8.
The course of work of above-mentioned valve front end internal expansion type packoff 14 and valve rear end internal expansion type packoff 15 is: water filling in from the intake tunnel 14.3 of valve front end internal expansion type packoff 14 toward valve 24 lumens to be measured, drain the air in valve 24 lumens to be measured, after water is full, close valve 24 to be measured, inner chamber is pressurizeed.Along with the rising of chamber pressure, interior pressure will be pushed up voluntarily and be pressed internal expansion type sealing frock, make the first O-ring seal 14.8 and the second O-ring seal 15.8 be close to valve 24 to be measured, thereby make packoff tightr with being connected of valve, seal tighter.After having tested, open shutdown valve 15.9, draining is to tank.
In technique scheme, described multiple the first annular grooves 14.4 are coaxially arranged, and multiple the second annular grooves 15.4 are coaxially arranged.
In technique scheme, it also comprises the first valve bracket system 25 to be measured that is positioned at valve to be measured 24 front end belows, described the first valve bracket system 25 to be measured comprises the first drive unit 25.1, the first urceolus 25.4, the first inner core 25.5, the first pedestal 25.6 and the first roller 25.7, the first worm screw 25.2 being fixedly connected with the output shaft of the first drive unit 25.1, the first turbine 25.9 mating with the first worm screw 25.2, the first push rod 25.3 contacting with the first turbine 25.9 tops, described the first inner core 25.5 is fixed on the first pedestal 25.6 tops, the first roller 25.7 is all installed in the front-end and back-end of the first pedestal 25.6, the first urceolus 25.4 is enclosed within the first inner core 25.5 outsides, the output shaft of the first drive unit 25.1 drives the first push rod 25.3 catenary motions by the first worm screw 25.2 and the first turbine 25.9, the top of the first push rod 25.3 is arranged in the first inner core 25.5, the top of the first push rod 25.3 can be by withstanding the first urceolus 25.4 top board 25.8 by the first urceolus 25.4 jack-up, described the first valve bracket system 25 to be measured is located on base 10 by the first roller 25.7.
In technique scheme, it also comprises the second valve bracket system 11 to be measured that is positioned at valve to be measured 24 belows, rear end, described the second valve bracket system 11 to be measured comprises the second drive unit 11.1, the second urceolus 11.4, the second inner core 11.5, the second pedestal 11.6, the second roller 11.7, coupling arrangement 11.8, operating grip 11.9, screw rod 11.10, the second worm screw 11.2 being fixedly connected with the output shaft of the second drive unit 11.1, the second turbine 11.11 mating with the second worm screw 11.2, the second push rod 11.3 contacting with the second turbine 11.11 tops, described the second inner core 11.5 is fixed on the second pedestal 11.6 tops, the second roller 11.7 is all installed in the front-end and back-end of the second pedestal 11.6, the second urceolus 11.4 is enclosed within the second inner core 11.5 outsides, the output shaft of the second drive unit 11.1 drives the second push rod 11.3 catenary motions by the second worm screw 11.2 and the second turbine 11.11, the top of the second push rod 11.3 is arranged in the second inner core 11.5, the top of the second push rod 11.3 can be by withstanding the second urceolus 11.4 top board 11.12 by the second urceolus 11.4 jack-up, described the second valve bracket system 11 to be measured is arranged on base 10 by the second roller 11.7, one end of described screw rod 11.10 is fixedly connected with operating grip 11.9, the other end of screw rod 11.10 is threaded with the second pedestal 11.6, described screw rod 11.10 is threaded with the bottom of coupling arrangement 11.8, described the second pedestal 11.6 is fixedly connected with spring sledge 12 by coupling arrangement 11.8.By adjustment operation handle 11.9, can make screw rod 11.10 advance or retreat on the second pedestal 11.6 and coupling arrangement 11.8, because coupling arrangement 11.8 is fixedly connected with spring sledge 12, therefore adjustment operation handle 11.9 can be finely tuned the position of the second valve bracket system 11 to be measured.
In technique scheme, valve bracket system to be measured relies on drive unit to make push rod drive urceolus to rise or decline by worm screw and turbine, valve bracket system to be measured both can move horizontally self, also can oscilaltion campaign, not only solve the problem of valve 24 effect of weight hoop sealings to be measured, and ensured that valve 24 to be measured is steadily reliable in the time of withstand voltage test.Above-mentioned valve bracket system to be measured can provide maximum support power 15KN, and can support valve maximum weight be 8 tons under the clamping force synergy of fixed station crossbeam 2 and slide unit 7.Valve bracket system to be measured has stronger adaptability to various valves.
In technique scheme, the outside of described fixed station crossbeam 2 is provided with four nuts 3, and described each nut 3 is threaded with corresponding screw mandrel 13.
In technique scheme, the slide unit 7 of testing table and feed screw nut 18 thereof conduct oneself with dignity 13 tons, in the time of feed screw nut 18 and screw mandrel 13 threaded engagement and tangential movement, inhomogeneous owing to coordinating between deadweight reason screw thread pair, friction force is very large, be difficult to realize horizontal transmission, in order to address this problem, the present invention has designed spring sledge 12, its Main Function is support the weight of slide unit 7 and keep slide unit 7 even runnings, has solved under hypergravity the horizontal transmission of screw thread pair between screw mandrel 13 and feed screw nut 18 and has coordinated the difficult problem inhomogeneous, friction force is large.After installing, be placed in the spring 12.8 of spring sledge 12 of slide unit 7 belows in compressive state, spring sledge 12 anchorage forces under this state and slide unit 7 weight balancings, when slide unit 7 displacement, feed screw nut 18 in best state, ensures that slide unit 7 moves horizontally steady, laborsaving with feed screw nut 18 tolerance clearance.After these spring sledge 12 Installation and Debugging complete, without regulating, the spring 12.8 of spring sledge 12 is not swingable with the relative position of slide unit 7 again, and each feed screw nut of portion 18 is stressed evenly, steadily.
The concrete structure of above-mentioned spring sledge 12 comprises base plate 12.1, be arranged on the wheel 12.2 on base plate 12.1, be fixed on the spring base 12.3 at base plate 12.1 tops, the adjusting screw(rod) 12.4 that passes base plate 12.1 end faces and spring base 12.3 and be threaded with base plate 12.1 end faces and spring base 12.3, the technique nut 12.5 that is positioned at base plate 12.1 end face belows and is threaded with adjusting screw(rod) 12.4, the spring bumper cover 12.6 being threaded with the top of adjusting screw(rod) 12.4, the set nut 12.7 that is positioned at spring bumper cover 12.6 belows and is threaded with adjusting screw(rod) 12.4, be arranged on the spring 12.8 between spring bumper cover 12.6 and spring base 12.3, wherein, spring bumper cover 12.6 is withstood on the top of described spring 12.8, spring base 12.3 is withstood in the bottom of spring 12.8, described adjusting screw(rod) 12.4 in the part between spring bumper cover 12.6 and spring base 12.3 among spring 12.8 inner rings.
In technique scheme, the spring 12.8 of spring sledge 12 is in compressive state, spring length after compression is 366mm, the just weight of support slide unit 7 of spring sledge 12 under this state, while sliding like this, feed screw nut 18 in slide unit 7 in most suitable state, keeps slide unit 7 to operate steadily with the tolerance clearance of screw mandrel 13.Spring sledge 12 must be adjusted to spring 12.8 and be slightly less than the about 360mm of 366mm(before installing) its pre-compressed state, treat that spring sledge 12 is adjusted to 366mm by spring 12.8 after being mounted to slide unit 7 bottoms again, concrete operation step is: first adjusting screw(rod) 12.4 is threaded to top and flushes with spring bumper cover 12.6 tops, tighten up the technique nut 12.5 of bottom, spring 12.8 is compressed near 360mm, again spring sledge 12 is pushed into the correct position of slide unit 7 bottoms, then unclamp bottom technique nut 12.5, unscrew adjusting screw(rod) 12.4, make the decrement of spring 12.8 to 366mm, finally lock again adjusting screw(rod) 12.4 and complete adjusting.
The content that this instructions is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (10)
1. an overcritical valve water pressure testing board, it comprises base (10), valve front end internal expansion type packoff (14) and the valve rear end internal expansion type packoff (15) of coupling mutually, be fixed on fixed station bearing (1) and slide unit bearing (9) on base (10), be fixed on the fixed station crossbeam (2) on fixed station bearing (1), it is characterized in that: it also comprises four screw mandrels (13), be positioned at the spring sledge (12) on base (10), be arranged on the slide unit (7) on spring sledge (12), be fixed on the drive motor (8) on slide unit (7), wherein, described valve front end internal expansion type packoff (14) is arranged on the inner side of fixed station crossbeam (2), valve rear end internal expansion type packoff (15) is arranged on the inner side of slide unit (7), slide unit (7) is positioned between fixed station crossbeam (2) and slide unit bearing (9), one end of described four screw mandrels (13) is located at respectively four corners of fixed station crossbeam (2), the other end of four screw mandrels (13) is through four corners that are located at respectively slide unit bearing (9) after slide unit (7), in described slide unit (7), be provided with four gear train assemblies, four screw mandrel follower gears (17), driving gear (16), the inner ring of described each screw mandrel follower gear (17) is fixed with feed screw nut (18), between feed screw nut's (18) inner ring and corresponding screw mandrel (13), be threaded, the output shaft (8.1) of drive motor (8) can drive driving gear (16) to rotate, driving gear (16) can drive four screw mandrel follower gears (17) synchronously to rotate by described four gear train assemblies.
2. overcritical valve water pressure testing board according to claim 1, it is characterized in that: in described slide unit (7), be also fixed with driving gear installation shaft (6), described driving gear (16) is enclosed within driving gear installation shaft (6) by two bearings (5), in driving gear installation shaft (6) between described two bearings (5), also cover has driving gear axle sleeve (4), output shaft (8.1) end of described drive motor (8) is provided with transmission groove (8.2), the end face of driving gear (16) is provided with the transmission projection (16.1) of mating with above-mentioned transmission groove (8.2).
3. overcritical valve water pressure testing board according to claim 1, it is characterized in that: described each gear train assembly includes the first follower gear installation shaft (19) and the second follower gear installation shaft (20) that are fixed in slide unit (7), inner ring is enclosed within the first axle sleeve (21) in the first follower gear installation shaft (19), inner ring is enclosed within the second axle sleeve (23) in the second follower gear installation shaft (20), fixed cover is at first follower gear (22) of the first axle sleeve (21) outer ring, fixed cover is at second follower gear (26) of the second axle sleeve (23) outer ring, wherein, described the first follower gear (22) can be in the upper rotation of the first follower gear installation shaft (19) together with the first axle sleeve (21), the second follower gear (26) can be in the upper rotation of the second follower gear installation shaft (20) together with the second axle sleeve (23), each the first follower gear (22) all engages with driving gear (16), each the first follower gear (22) engages with corresponding the second follower gear (26) respectively, each the second follower gear (26) engages with corresponding screw mandrel follower gear (17) respectively, above-mentioned the first follower gear (22), the second follower gear (26) and screw mandrel follower gear (17) are realized axial limiting by slide unit (7) and corresponding cover plate (27), above-mentioned driving gear (16) is realized axial limiting by the output shaft (8.1) of slide unit (7) and drive motor (8).
4. overcritical valve water pressure testing board according to claim 1, it is characterized in that: described valve front end internal expansion type packoff (14) comprises the first vexed plate (14.1), be fixed on the first seben (14.2) on fixed station crossbeam (2), wherein, the inner side of the first vexed plate (14.1) offers the first annular groove (14.4) that valve multiple and to be measured (24) front end mates, the outside of the first vexed plate (14.1) is fixedly connected with the first seben (14.2), on described the first vexed plate (14.1), offer intake tunnel (14.3), the water inlet (14.5) of intake tunnel (14.3) is positioned at the top of the first vexed plate (14.1), the water delivering orifice (14.6) of intake tunnel (14.3) is positioned at the middle inside of the first vexed plate (14.1) and can be communicated with valve to be measured (24), between valve to be measured (24) front end and corresponding the first annular groove (14.4), be provided with the first pressure sealing ring (14.7), between this first pressure sealing ring (14.7) and corresponding the first annular groove (14.4), be provided with the first O-ring seal (14.8), between the first pressure sealing ring (14.7) and valve to be measured (24) front end, be also provided with the first O-ring seal (14.8).
5. overcritical valve water pressure testing board according to claim 4, it is characterized in that: described valve rear end internal expansion type packoff (15) comprises the second vexed plate (15.1), be fixed on the second seben (15.2) on slide unit (7), wherein, the inner side of the second vexed plate (15.1) offers the second annular groove (15.4) that mate valve multiple and to be measured (24) rear end, the outside of the second vexed plate (15.1) is fixedly connected with the second seben (15.2), on described the second vexed plate (15.1), offer exhalant canal (15.3), the water inlet (15.5) of exhalant canal (15.3) is positioned at the middle inside of the second vexed plate (15.1) and can be communicated with valve to be measured (24), the water delivering orifice (15.6) of exhalant canal (15.3) is positioned at the bottom of the second vexed plate (15.1), the water delivering orifice (15.6) of described exhalant canal (15.3) is connected with shutdown valve (15.9), between valve to be measured (24) rear end and corresponding the second annular groove (15.4), be provided with the second pressure sealing ring (15.7), between this second pressure sealing ring (15.7) and corresponding the second annular groove (15.4), be provided with the second O-ring seal (15.8), between the second pressure sealing ring (15.7) and valve to be measured (24) rear end, be also provided with the second O-ring seal (15.8).
6. overcritical valve water pressure testing board according to claim 5, is characterized in that: described multiple the first annular grooves (14.4) are for coaxially arranged, and multiple the second annular grooves (15.4) are coaxially arranged.
7. overcritical valve water pressure testing board according to claim 1, it is characterized in that: it also comprises the first valve bracket system to be measured (25) that is positioned at valve to be measured (24) front end below, described the first valve bracket system to be measured (25) comprises the first drive unit (25.1), the first urceolus (25.4), the first inner core (25.5), the first pedestal (25.6) and the first roller (25.7), the first worm screw (25.2) being fixedly connected with the output shaft of the first drive unit (25.1), the first turbine (25.9) mating with the first worm screw (25.2), the first push rod (25.3) contacting with the first turbine (25.9) top, described the first inner core (25.5) is fixed on the first pedestal (25.6) top, the first roller (25.7) is all installed in the front-end and back-end of the first pedestal (25.6), the first urceolus (25.4) is enclosed within the first inner core (25.5) outside, the output shaft of the first drive unit (25.1) drives the first push rod (25.3) catenary motion by the first worm screw (25.2) and the first turbine (25.9), the top of the first push rod (25.3) is arranged in the first inner core (25.5), the top of the first push rod (25.3) can be by withstanding the first urceolus (25.4) top board (25.8) by the first urceolus (25.4) jack-up, described the first valve bracket system to be measured (25) is located on base (10) by the first roller (25.7).
8. overcritical valve water pressure testing board according to claim 7, it is characterized in that: it also comprises the second valve bracket system to be measured (11) that is positioned at below, valve to be measured (24) rear end, described the second valve bracket system to be measured (11) comprises the second drive unit (11.1), the second urceolus (11.4), the second inner core (11.5), the second pedestal (11.6), the second roller (11.7), coupling arrangement (11.8), operating grip (11.9), screw rod (11.10), the second worm screw (11.2) being fixedly connected with the output shaft of the second drive unit (11.1), the second turbine (11.11) mating with the second worm screw (11.2), the second push rod (11.3) contacting with the second turbine (11.11) top, described the second inner core (11.5) is fixed on the second pedestal (11.6) top, the second roller (11.7) is all installed in the front-end and back-end of the second pedestal (11.6), the second urceolus (11.4) is enclosed within the second inner core (11.5) outside, the output shaft of the second drive unit (11.1) drives the second push rod (11.3) catenary motion by the second worm screw (11.2) and the second turbine (11.11), the top of the second push rod (11.3) is arranged in the second inner core (11.5), the top of the second push rod (11.3) can be by withstanding the second urceolus (11.4) top board (11.12) by the second urceolus (11.4) jack-up, described the second valve bracket system to be measured (11) is arranged on base (10) by the second roller (11.7), one end of described screw rod (11.10) is fixedly connected with operating grip (11.9), the other end of screw rod (11.10) is threaded with the second pedestal (11.6), described screw rod (11.10) is threaded with the bottom of coupling arrangement (11.8), described the second pedestal (11.6) is fixedly connected with spring sledge (12) by coupling arrangement (11.8).
9. overcritical valve water pressure testing board according to claim 1, is characterized in that: the outside of described fixed station crossbeam (2) is provided with four nuts (3), and described each nut (3) is threaded with corresponding screw mandrel (13).
10. overcritical valve water pressure testing board according to claim 1, it is characterized in that: described spring sledge (12) comprises base plate (12.1), be arranged on the wheel (12.2) on base plate (12.1), be fixed on the spring base (12.3) at base plate (12.1) top, the adjusting screw(rod) (12.4) that passes base plate (12.1) end face and spring base (12.3) and be threaded with base plate (12.1) end face and spring base (12.3), the technique nut (12.5) that is positioned at base plate (12.1) end face below and is threaded with adjusting screw(rod) (12.4), the spring bumper cover (12.6) being threaded with the top of adjusting screw(rod) (12.4), the set nut (12.7) that is positioned at spring bumper cover (12.6) below and is threaded with adjusting screw(rod) (12.4), be arranged on the spring (12.8) between spring bumper cover (12.6) and spring base (12.3), wherein, spring bumper cover (12.6) is withstood on the top of described spring (12.8), spring base (12.3) is withstood in the bottom of spring (12.8), described adjusting screw(rod) (12.4) is positioned at part between spring bumper cover (12.6) and spring base (12.3) among spring (12.8) inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104409.8A CN103868685B (en) | 2014-03-20 | 2014-03-20 | Overcritical valve water pressure testing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104409.8A CN103868685B (en) | 2014-03-20 | 2014-03-20 | Overcritical valve water pressure testing board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103868685A true CN103868685A (en) | 2014-06-18 |
| CN103868685B CN103868685B (en) | 2016-04-27 |
Family
ID=50907458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410104409.8A Active CN103868685B (en) | 2014-03-20 | 2014-03-20 | Overcritical valve water pressure testing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103868685B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079480A (en) * | 2018-09-27 | 2018-12-25 | 厦门攸信信息技术有限公司 | A kind of spring assembly machine structure and assembly system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07181106A (en) * | 1993-12-22 | 1995-07-21 | Amano Kogyo Gijutsu Kenkyusho | Exhaust valve tester for engine |
| CN202710259U (en) * | 2012-08-30 | 2013-01-30 | 福建省标光阀门科技有限公司 | Pressure testing machine for testing water pressure of valves used on water pipeline |
| CN202836956U (en) * | 2012-10-23 | 2013-03-27 | 沈阳仪表科学研究院 | Fatigue testing machine for corrugated pipe with pressure compensation device |
| CN202974640U (en) * | 2012-12-01 | 2013-06-05 | 卓旦春 | Valve pressure testing machine |
-
2014
- 2014-03-20 CN CN201410104409.8A patent/CN103868685B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07181106A (en) * | 1993-12-22 | 1995-07-21 | Amano Kogyo Gijutsu Kenkyusho | Exhaust valve tester for engine |
| CN202710259U (en) * | 2012-08-30 | 2013-01-30 | 福建省标光阀门科技有限公司 | Pressure testing machine for testing water pressure of valves used on water pipeline |
| CN202836956U (en) * | 2012-10-23 | 2013-03-27 | 沈阳仪表科学研究院 | Fatigue testing machine for corrugated pipe with pressure compensation device |
| CN202974640U (en) * | 2012-12-01 | 2013-06-05 | 卓旦春 | Valve pressure testing machine |
Non-Patent Citations (1)
| Title |
|---|
| 卢合奎 等: "水压试验堵阀", 《通用机械》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079480A (en) * | 2018-09-27 | 2018-12-25 | 厦门攸信信息技术有限公司 | A kind of spring assembly machine structure and assembly system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103868685B (en) | 2016-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA3090856C (en) | Pipe element having shoulder, groove and bead and methods and apparatus for manufacture thereof | |
| CN203900324U (en) | Internal-support type rim ring rolling machine | |
| CN109808651B (en) | Production device based on opto-electro-mechanical | |
| CN103868685B (en) | Overcritical valve water pressure testing board | |
| CN103498830A (en) | Adjustable driving device for initial angle and rotation angle of pipe rolling machine crank shaft | |
| CN105750384A (en) | Improved inner-pushing type clamping device for numerical control tube bending machine | |
| CN103848368A (en) | Synchronous lifting device for longer steel pipe | |
| CN209830052U (en) | Pipe revolves colored dish and expands machine soon of expanding machine | |
| CN100551662C (en) | Combined tyre vulcanizing machine | |
| CN105081042A (en) | Integral-horizontal-moving pure mechanical toggle rod type drawing cushion with permanent magnet synchronous servo motor for double-ended drive | |
| CN111359281A (en) | Device for sealing plate layer of plate-type filter | |
| CN205551165U (en) | Hydraulic pressure interpolates rotation formula clamping device for CNC tube bending machine | |
| CN2899990Y (en) | Guide plate device of seamless steel pipe conical punching machine | |
| CN103506654B (en) | A kind of inner bore of pipeline organisation of working | |
| CN110355232A (en) | A kind of steel pipe rotation enlarging system and steel pipe revolve expansion machine | |
| CN102161056A (en) | Reciprocating mechanism of drawing trolleys on drawing machine | |
| CN205914940U (en) | A welding jig that is used for welding on oil tank body with oil pipe , oil drain nut | |
| CN104295619B (en) | A kind of blooming mill power section structure | |
| CN108057751A (en) | Portable double hydraulic control channelling machine | |
| CN203155792U (en) | Hydraulic pipe expander | |
| CN207710242U (en) | Axle tubes press-loading apparatus | |
| CN203991665U (en) | A kind of mandrel stem clamping device of large-scale side charging double-roller cold pilger mill | |
| CN201900128U (en) | Specification changing component of metal former | |
| CN203249831U (en) | Pipe length infinite adapting spin shifter of hydrostatic testing machine | |
| CN104179810B (en) | Mounting, expanding and adjusting method for connecting hole of coupling of blooming mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |