CN103822557A - Double-marble balanced centering type internal dial gauge - Google Patents
Double-marble balanced centering type internal dial gauge Download PDFInfo
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- CN103822557A CN103822557A CN201410098418.0A CN201410098418A CN103822557A CN 103822557 A CN103822557 A CN 103822557A CN 201410098418 A CN201410098418 A CN 201410098418A CN 103822557 A CN103822557 A CN 103822557A
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Abstract
The invention provides a double-marble balanced centering type internal dial gauge. The double-marble balanced centering type internal dial gauge comprises a measuring part, an ejector pin part and a master meter, wherein the ejector pin part comprises a main gear, a main shaft, an ejector pin, a volute spring, a lower end cover and a sleeve, the main gear is arranged at the bottom of the main shaft, the ejector pin is arranged between a main shaft sealing cover and the upper end surface of the main shaft, the master meter is fixed at the side end of a fixed ring through a fixed support, the lower end cover is arranged below the volute spring which is fixed below the main gear, the measuring part comprises a lower box, an upper box, two inner measuring rod sleeves and two inner measuring rods, one ends of the inner measuring rods are inserted in through holes of inserting parts of the inner measuring rod sleeves, and the end parts of the two inner measuring rods extend out of the two sides of the lower box and the upper box. The double-marble balanced centering type internal dial gauge has the advantages that the defect of incapability of centering in short time during earlier stage balanced centering is overcome, and a dead zone in a variable orifice is visible, so that whether a dial gauge stand is balanced and centered and whether the measurement state is achieved can be judged through direct visual observation, the measurement time is shortened as much as possible, and the measuring accuracy is improved.
Description
technical field
The present invention relates to measuring instrument field, particularly a kind of two pellet balance centering type inside dial indicator.
Background technology
Old-fashioned inside dial indicator principle of work:
The existing history for many years of application of inside dial indicator, it mainly adopts lever principle, when measurement as shown in Figure 1, after inside dial indicator main body is put into metering-orifice to be measured, because the gauge head specially regulating is than the large 3～5mm in aperture, movable gauge head inwardly shrinks under the effect of pressure, the V-arrangement geometric ratio bell crank promoting in main body rotates around stationary shaft, the push rod that is right-angled intersection with movable gauge head is upwards promoted, and then promote clock gauge dimensional measuring instrument, reach the object that shows length.
The using method of old-fashioned inside dial indicator:
Mechanical internal diameter clock gauge is a kind of comparative quantity instrument, first calibrates with ring standard gauge before use.The course of work of measuring is: the gauge head of main scale is put into hole to be measured as shown in Figure 2, the main body that the swings gauge head that makes to slide slides in main body, steering lever is converted to the motion of slip gauge head the motion of main scale push rod, push rod main scale promotes clock gauge push rod again to be made clock gauge the pointer flickered, and the full swing position of the pointer that operator observes is the difference of size to be measured and standard ring.
Although the existing history for many years of the application of inside dial indicator, its structure is also quite ripe, and some serious defect that old-fashioned inside dial indicator exists cannot overcome always.
One, range regulates complicated:
Old-fashioned inside dial indicator regulates range need to change gauge head, uses special instrument that nut is loosening, unloads former gauge head, changes to the gauge head that length is suitable and is adjusted to suitable length, re-uses special instrument gauge head is fixed.In the time of each adjusting range, must repeat above-mentioned steps, stretch or shorten gauge head length, reach the object of measure of the change range, its complex steps, needs operating personnel to have certain range estimation estimation level, easily makes mistakes.
Two, measure loaded down with trivial details:
Old-fashioned inside dial indicator one end is movable gauge head, and the other end is fixing gauge head, and in the time measuring, fixing gauge head is motionless, and movable gauge head inwardly shrinks under power effect, reaches effective aperture size.But in the time measuring due to the reason such as invisibility and the two ends biasing of inside dial indicator main body of hole measuring, the putting position of inside dial indicator cannot guarantee complete level, and may be very large angle of inclination, but survey crew often cannot be made accurately and adjusting, thereby the measuring error of causing, increase rejection rate, waste material and production time, virtually improved production cost.
Above problem is mainly because old-fashioned inside dial indicator adopts lever principle, although employing lever principle can guarantee the accuracy of follow-up transmission, cannot reach the object of short time inner equilibrium centering while debugging early stage.
Summary of the invention
For above problem, the present invention is a kind of two pellet balance centering type inside dial indicator, this invention redesigns the drive mechanism of inside dial indicator, solve the defect that early stage cannot centering in the short time when balance centering, in change hole, blind area is into visual, thereby can observe to judge whether balance centering of dial gauge frame by direct vision, whether reach measuring state, shorten as much as possible Measuring Time, improve measuring accuracy, for reaching this object, the invention provides a kind of two pellet balance centering type inside dial indicator, described inside dial indicator comprises measurement section, push rod portion and master meter, described push rod portion comprises main drive gear, main shaft, push rod, volute spring, bottom end cover and sleeve, main drive gear is arranged at described main shaft bottom, described main shaft has main shaft shell outward, described main shaft upper end cover has sleeve, there is main shaft capping described sleeve upper end, between described main shaft capping and main shaft upper surface, there is push rod, described push rod overcoat has support spring, in described push rod, there is bearing, retainer plate is arranged at the top of described push rod portion, described master meter is fixed on retainer plate side by fixed support, described volute spring is fixed on main drive gear below by backing pin, there is bottom end cover described volute spring below, described bottom end cover is fixed on the below of measurement section lower box by mounting screw, described measurement section comprises lower box, upper box, 2 interior measuring staff covers and 2 interior measuring staffs, described lower box and upper box are fixed together by attachment screw, described 2 interior measuring staff covers and 2 interior measuring staffs are in lower box and upper box, described interior measuring staff cover comprises Plug Division and tooth-strip part, one side of the tooth-strip part of described interior measuring staff cover has tooth, the main drive gear of described push rod portion is meshed with the tooth of the tooth-strip part of two interior measuring staffs covers, there is through hole the Plug Division of described interior measuring staff cover, the corresponding interior measuring staff of described each interior measuring staff cover, described interior measuring staff one end is inserted in the through hole of Plug Division of interior measuring staff cover, on described interior measuring staff, cover has interior measuring staff seal, described interior measuring staff seal is between interior measuring staff and interior measuring staff cover, stretch out from lower box and upper box both sides the end of described two interior measuring staffs.
As a further improvement on the present invention, described inside dial indicator also has 2 subtabulations, described subtabulation is in main shaft both sides, the corresponding subtabulation axle of described each subtabulation, described subtabulation axle has subtabulation shaft housing outward, in described subtabulation, there is subtabulation to cog, described subtabulation cogs and links with the indicator of subtabulation, described subtabulation axle upper end has subtabulation to cog, there is subtabulation lower gear described subtabulation axle lower end, described interior measuring staff one side has tooth, the tooth of described interior measuring staff one side is meshed with subtabulation lower gear, the present invention arrange after subtabulation can by subtabulation reading whether relatively carry out to observe intuitively both sides amount of contraction identical, identical inside dial indicator balance centering is described, otherwise do not have.
As a further improvement on the present invention, described interior measuring staff overcoat has outside Range Extension bar, described outside Range Extension bar uses pellet and expander bar spring housing to be contained on interior measuring staff by expander bar, because the new-type inside dial indicator of the present invention is subject to the restriction of physical dimension, its internal activities gauge head can only be expanded 4cm, thereby need add outside Range Extension bar at inside meter, in the time of the outside expander bar expanded range of needs, movable gauge head in table is shunk completely, by screw thread, outside expander bar is connected with watchcase, connecting movable gauge head in fastening rear table just can stretch again, to reach expectation measurement range.
As a further improvement on the present invention, described inside dial indicator also has 2 subtabulations, described subtabulation is in main shaft both sides, the corresponding subtabulation axle of described each subtabulation, described subtabulation axle has subtabulation shaft housing outward, in described subtabulation, there is subtabulation to cog, described subtabulation cogs and links with the indicator of subtabulation, described subtabulation axle upper end has subtabulation to cog, there is subtabulation lower gear described subtabulation axle lower end, described interior measuring staff one side has tooth, the tooth of described outside Range Extension bar one side is meshed with subtabulation lower gear, the present invention arrange after subtabulation can by subtabulation reading whether relatively carry out to observe intuitively both sides amount of contraction identical, identical inside dial indicator balance centering is described, otherwise do not have.
As a further improvement on the present invention, there is a registration hole upper surface of the Plug Division of described interior measuring staff cover, the upper surface of described interior measuring staff upper surface and upper box all has a round corresponding with the pilot hole of the upper surface of the Plug Division of interior measuring staff cover, in the hole of described interior measuring staff upper surface, there are interior measuring staff spring and interior measuring staff pellet, described interior measuring staff pellet is on interior measuring staff spring, the range variation pattern of the new-type inside meter of the present invention can adopt telescopic, control collapsing length with billiards structure, in the time that inside meter need to be expanded or reduce range, stretch into from hole with a stamp stem, prop up pellet, now, movable gauge head just can be free to slide, in the time sliding into next marble hole, pellet ejects from hole under the effect of bottom spring, movable gauge head in retightening, interior movable gauge head retightens, reach Range Extension, the object of shrinking.
As a further improvement on the present invention; between described push rod upper surface and retainer plate, there is briquetting; there is side described briquetting both sides; because new-type inside dial indicator is owing to having adopted double-claw type structure; two ends are all movable gauge heads; so must add safety guard to it, therefore need to arrange briquetting, its principle is exactly the reverse process of new-type inside dial indicator transmission principle.When measurement, firmly push briquetting, main shaft moves downward under the effect of power, and then the work of driven gear tooth bar, and movable gauge head is shunk, and makes it in the situation that not being subject to external force, measuring head being put into and treat gaging hole inside.
The present invention is a kind of two pellet balance centering type inside dial indicator, and this clock gauge has architecture advances:
1) adopt rack-and-pinion transmission, the straight-line displacement of movable gauge head (rectilinear motion) is changed into and rotatablely moved by gear & rack structure.
2) change rotatablely moving of gear into upper and lower straight-line displacement (rectilinear motion) by specific helical structure and be delivered to inside dial indicator.
Because this structure designs for balanced type, adopt above structure, balance centering in the inside dial indicator short time will be well solved, fundamentally get rid of because of table inclination, uneven in hole, the problems such as burr also will can not have influence on the measurement of new-type inside meter, in addition the present invention is designed with 2 auxiliary tables in the time of unbalance stress etc., pellet will eject under the effect of contained spring, do not cause subordinate list reading not etc., thereby convenient operation personnel correct, therefore the present invention's design, balance centering in the inside dial indicator short time will be well solved, fundamentally get rid of because of table inclination, uneven in hole, the measuring error problem that the problems such as burr cause, improve the precision of measuring.
Accompanying drawing explanation
Fig. 1 is prior art inside dial indicator transmission principle figure;
Fig. 2 is prior art inside meter measurement mode graphoid;
Fig. 3 is schematic diagram of the present invention;
Fig. 4 is inner structure schematic diagram of the present invention;
Fig. 5 is push rod of the present invention portion partial schematic diagram;
Fig. 6 is clock gauge body partial schematic diagram of the present invention;
Fig. 7 is the partial enlarged drawing of the A part of Fig. 6 of the present invention;
Fig. 8 is clock gauge box inner structure schematic diagram of the present invention;
Fig. 9 is range adjustment structure schematic diagram of the present invention;
Member in figure is:
1, lower box; 2, upper box; 3, subtabulation shaft housing;
4, subtabulation cogs; 5, main shaft shell; 6, support spring;
7, sleeve; 8, main shaft capping; 9, briquetting;
10, master meter; 11, retainer plate; 12, bearing;
13, push rod; 14, interior measuring staff pellet; 15, interior measuring staff spring;
16, mounting screw; 17, backing pin; 18, volute spring;
19, bottom end cover; 20, interior measuring staff seal; 21, subtabulation;
22, main drive gear; 23, main shaft; 24, interior measuring staff cover;
24-1, Plug Division; 24-2, tooth-strip part; 24-3, pilot hole;
25, interior measuring staff; 26, expander bar pellet; 27, subtabulation axle;
28, subtabulation lower gear; 29, attachment screw; 30, expander bar spring;
31, outside Range Extension bar.
Embodiment
Below in conjunction with drawings and Examples, invention is described in detail:
The present invention is a kind of two pellet balance centering type inside dial indicator, this invention redesigns the drive mechanism of inside dial indicator, solve the defect that early stage cannot centering in the short time when balance centering, in change hole, blind area is into visual, thereby can observe to judge whether balance centering of dial gauge frame by direct vision, whether reach measuring state, shorten as much as possible Measuring Time, improve measuring accuracy.
As a kind of specific embodiment of the present invention, the invention provides a kind of two pellet balance centering type inside dial indicator, described inside dial indicator comprises measurement section, push rod portion and master meter 10, described push rod portion comprises main drive gear 22, main shaft 23, push rod 13, volute spring 18, bottom end cover 19 and sleeve 7, main drive gear 22 is arranged at described main shaft 23 bottoms, outside described main shaft 23, there is main shaft shell 5, described main shaft 23 upper end covers have sleeve 7, there is main shaft capping 8 described sleeve 7 upper ends, between described main shaft capping 8 and main shaft 23 upper surfaces, there is push rod 13, described push rod 13 overcoats have support spring 6, in described push rod 13, there is bearing 12, retainer plate 11 is arranged at the top of described push rod portion, described master meter 10 is fixed on retainer plate 11 sides by fixed support, described volute spring 18 is fixed on main drive gear 22 belows by backing pin 17, there is bottom end cover 19 described volute spring 18 belows, described bottom end cover 19 is fixed on the below of measurement section lower box 1 by mounting screw 16, described measurement section comprises lower box 1, upper box 2, 24 and 2 interior measuring staffs 25 of 2 interior measuring staff covers, described lower box 1 and upper box 2 are fixed together by attachment screw 29, 24 and 2 interior measuring staffs 25 of described 2 interior measuring staff covers are in lower box 1 and upper box 2, described interior measuring staff cover 24 comprises Plug Division 24-1 and tooth-strip part 24-2, a side of the tooth-strip part 24-2 of described interior measuring staff cover 24 has tooth, the main drive gear 22 of described push rod portion is meshed with the tooth of the tooth-strip part 24-2 of two interior measuring staffs covers 24, the Plug Division 24-1 of described interior measuring staff cover 24 has through hole, the corresponding interior measuring staff 25 of described each interior measuring staff cover 24, described interior measuring staff 25 one end are inserted in the through hole of Plug Division 24-1 of interior measuring staff cover 24, on described interior measuring staff 25, cover has interior measuring staff seal 20, described interior measuring staff seal 20 is between interior measuring staff 25 and interior measuring staff cover 24, stretch out from lower box 1 and upper box 2 both sides the end of described two interior measuring staffs 25.
As the another kind of specific embodiment of the present invention, the invention provides a kind of two pellet balance centering type inside dial indicator, described inside dial indicator comprises measurement section, push rod portion and master meter 10, described push rod portion comprises main drive gear 22, main shaft 23, push rod 13, volute spring 18, bottom end cover 19 and sleeve 7, main drive gear 22 is arranged at described main shaft 23 bottoms, outside described main shaft 23, there is main shaft shell 5, described main shaft 23 upper end covers have sleeve 7, there is main shaft capping 8 described sleeve 7 upper ends, between described main shaft capping 8 and main shaft 23 upper surfaces, there is push rod 13, described push rod 13 overcoats have support spring 6, in described push rod 13, there is bearing 12, retainer plate 11 is arranged at the top of described push rod portion, described master meter 10 is fixed on retainer plate 11 sides by fixed support, described volute spring 18 is fixed on main drive gear 22 belows by backing pin 17, there is bottom end cover 19 described volute spring 18 belows, described bottom end cover 19 is fixed on the below of measurement section lower box 1 by mounting screw 16, described measurement section comprises lower box 1, upper box 2, 24 and 2 interior measuring staffs 25 of 2 interior measuring staff covers, described lower box 1 and upper box 2 are fixed together by attachment screw 29, 24 and 2 interior measuring staffs 25 of described 2 interior measuring staff covers are in lower box 1 and upper box 2, described interior measuring staff cover 24 comprises Plug Division 24-1 and tooth-strip part 24-2, a side of the tooth-strip part 24-2 of described interior measuring staff cover 24 has tooth, the main drive gear 22 of described push rod portion is meshed with the tooth of the tooth-strip part 24-2 of two interior measuring staffs covers 24, the Plug Division 24-1 of described interior measuring staff cover 24 has through hole, the corresponding interior measuring staff 25 of described each interior measuring staff cover 24, described interior measuring staff 25 one end are inserted in the through hole of Plug Division 24-1 of interior measuring staff cover 24, on described interior measuring staff 25, cover has interior measuring staff seal 20, described interior measuring staff seal 20 is between interior measuring staff 25 and interior measuring staff cover 24, stretch out from lower box 1 and upper box 2 both sides the end of described two interior measuring staffs 25, described inside dial indicator also has 2 subtabulations 21, described subtabulation 21 is in main shaft 23 both sides, the corresponding subtabulation axle 27 of described each subtabulation 21, outside described subtabulation axle 27, there is subtabulation shaft housing 3, in described subtabulation 21, there is subtabulation to cog 4, described subtabulation cog 4 with the indicator interlock of subtabulation 21, described subtabulation axle 27 upper ends have subtabulation to cog 4, there is subtabulation lower gear 28 described subtabulation axle 27 lower ends, described interior measuring staff 25 1 sides have tooth, the tooth of described interior measuring staff 25 1 sides is meshed with subtabulation lower gear 28, the present invention arrange after subtabulation can by subtabulation reading whether relatively carry out to observe intuitively both sides amount of contraction identical, identical inside dial indicator balance centering is described, otherwise do not have.
As a kind of best specific embodiment of the present invention, the invention provides the schematic diagram two pellet balance centering type inside dial indicators of cut-away view one as shown in Figure 4 as shown in Figure 3, described inside dial indicator comprises measurement section, push rod portion and master meter 10, described push rod portion comprises main drive gear 22 as shown in Figure 5, main shaft 23, push rod 13, volute spring 18, bottom end cover 19 and sleeve 7, main drive gear 22 is arranged at described main shaft 23 bottoms, outside described main shaft 23, there is main shaft shell 5, described main shaft 23 upper end covers have sleeve 7, there is main shaft capping 8 described sleeve 7 upper ends, between described main shaft capping 8 and main shaft 23 upper surfaces, there is push rod 13, described push rod 13 overcoats have support spring 6, in described push rod 13, there is bearing 12, retainer plate 11 is arranged at the top of described push rod portion, described master meter 10 is fixed on retainer plate 11 sides by fixed support, between described push rod 13 upper surfaces and retainer plate 11, there is briquetting 9, there is side described briquetting 9 both sides, because new-type inside dial indicator is owing to having adopted double-claw type structure, two ends are all movable gauge heads, so must add safety guard to it, therefore need to arrange briquetting, its principle is exactly the reverse process of new-type inside dial indicator transmission principle.When measurement, firmly push briquetting, main shaft moves downward under the effect of power, and then driven gear tooth bar work, movable gauge head is shunk, make it in the situation that not being subject to external force, measuring head be put into and treat gaging hole inside, described volute spring 18 is fixed on main drive gear 22 belows by backing pin 17, there is bottom end cover 19 described volute spring 18 belows, described bottom end cover 19 is fixed on the below of measurement section lower box 1 by mounting screw 16, described measurement section comprises lower box 1 as shown in Figure 6 and Figure 8, upper box 2, 24 and 2 interior measuring staffs 25 of 2 interior measuring staff covers, described lower box 1 and upper box 2 are fixed together by attachment screw 29, 24 and 2 interior measuring staffs 25 of described 2 interior measuring staff covers are in lower box 1 and upper box 2, described interior measuring staff cover 24 comprises Plug Division 24-1 and tooth-strip part 24-2 as shown in Figure 9, a side of the tooth-strip part 24-2 of described interior measuring staff cover 24 has tooth, the main drive gear 22 of described push rod portion is meshed with the tooth of the tooth-strip part 24-2 of two interior measuring staffs covers 24, the Plug Division 24-1 of described interior measuring staff cover 24 has through hole, the corresponding interior measuring staff 25 of described each interior measuring staff cover 24, described interior measuring staff 25 one end are inserted in the through hole of Plug Division 24-1 of interior measuring staff cover 24, on described interior measuring staff 25, cover has interior measuring staff seal 20, described interior measuring staff seal 20 is between interior measuring staff 25 and interior measuring staff cover 24, there is a registration hole 24-3 upper surface of the Plug Division 24-1 of described interior measuring staff cover 24, the upper surface of described interior measuring staff 25 upper surfaces and upper box 2 all has a round corresponding with the pilot hole 24-3 of the upper surface of the Plug Division 24-1 of interior measuring staff cover 24, in the hole of described interior measuring staff 25 upper surfaces, there are as shown in Figure 7 interior measuring staff spring 15 and interior measuring staff pellet 14, described interior measuring staff pellet 14 is on interior measuring staff spring 15, the range variation pattern of the new-type inside meter of the present invention can adopt telescopic, control collapsing length with billiards structure, in the time that inside meter need to be expanded or reduce range, stretch into from hole with a stamp stem, prop up pellet, now, movable gauge head just can be free to slide, in the time sliding into next marble hole, pellet ejects from hole under the effect of bottom spring, movable gauge head in retightening, interior movable gauge head retightens, reach Range Extension, the object of shrinking, described interior measuring staff 25 overcoats have outside Range Extension bar 31, described outside Range Extension bar 31 uses pellet 26 and expander bar spring 30 to be sleeved on interior measuring staff 25 by expander bar, because the new-type inside dial indicator of the present invention is subject to the restriction of physical dimension, its internal activities gauge head can only be expanded 4cm, thereby need add outside Range Extension bar at inside meter, in the time of the outside expander bar expanded range of needs, movable gauge head in table is shunk completely, by screw thread, outside expander bar is connected with watchcase, connecting movable gauge head in fastening rear table just can stretch again, to reach expectation measurement range, described inside dial indicator also has 2 subtabulations 21, described subtabulation 21 is in main shaft 23 both sides, the corresponding subtabulation axle 27 of described each subtabulation 21, outside described subtabulation axle 27, there is subtabulation shaft housing 3, in described subtabulation 21, there is subtabulation to cog 4, described subtabulation cog 4 with the indicator interlock of subtabulation 21, described subtabulation axle 27 upper ends have subtabulation to cog 4, there is subtabulation lower gear 28 described subtabulation axle 27 lower ends, described interior measuring staff 25 1 sides have tooth, the tooth of described outside Range Extension bar 31 1 sides is meshed with subtabulation lower gear 28, the present invention arrange after subtabulation can by subtabulation reading whether relatively carry out to observe intuitively both sides amount of contraction identical, identical inside dial indicator balance centering is described, otherwise do not have.
The above, be only preferred embodiment of the present invention, is not the restriction of the present invention being made to any other form, and according to any modification or equivalent variations that technical spirit of the present invention is done, still belong to the present invention's scope required for protection.
Claims (6)
1. a two pellet balance centering type inside dial indicator, described inside dial indicator comprises measurement section, push rod portion and master meter (10), it is characterized in that: described push rod portion comprises main drive gear (22), main shaft (23), push rod (13), volute spring (18), bottom end cover (19) and sleeve (7), main drive gear (22) is arranged at described main shaft (23) bottom, outside described main shaft (23), there is main shaft shell (5), described main shaft (23) upper end cover has sleeve (7), there is main shaft capping (8) described sleeve (7) upper end, between described main shaft capping (8) and main shaft (23) upper surface, there is push rod (13), described push rod (13) overcoat has support spring (6), in described push rod (13), there is bearing (12), retainer plate (11) is arranged at the top of described push rod portion, described master meter (10) is fixed on retainer plate (11) side by fixed support, described volute spring (18) is fixed on main drive gear (22) below by backing pin (17), there is bottom end cover (19) described volute spring (18) below, described bottom end cover (19) is fixed on the below of measurement section lower box (1) by mounting screw (16), described measurement section comprises lower box (1), upper box (2), 2 interior measuring staff covers (24) and 2 interior measuring staffs (25), described lower box (1) and upper box (2) are fixed together by attachment screw (29), described 2 interior measuring staff covers (24) and 2 interior measuring staffs (25) are in lower box (1) and upper box (2), described interior measuring staff cover (24) comprises Plug Division (24-1) and tooth-strip part (24-2), one side of the tooth-strip part (24-2) of described interior measuring staff cover (24) has tooth, the main drive gear (22) of described push rod portion is meshed with the tooth of the tooth-strip part (24-2) of two interior measuring staff covers (24), there is through hole the Plug Division (24-1) of described interior measuring staff cover (24), the corresponding interior measuring staff of described each interior measuring staff cover (24) (25), described interior measuring staff (25) one end is inserted in the through hole of Plug Division (24-1) of interior measuring staff cover (24), the upper cover of described interior measuring staff (25) has interior measuring staff seal (20), described interior measuring staff seal (20) is between interior measuring staff (25) and interior measuring staff cover (24), stretch out from lower box (1) and upper box (2) both sides the end of described two interior measuring staffs (25).
2. the two pellet balance centering type inside dial indicators of one according to claim 1, it is characterized in that: described inside dial indicator also has 2 subtabulations (21), described subtabulation (21) is in main shaft (23) both sides, the corresponding subtabulation axle of described each subtabulation (21) (27), outside described subtabulation axle (27), there is subtabulation shaft housing (3), in described subtabulation (21), there is subtabulation cog (4), described subtabulation cogs (4) and the indicator of subtabulation (21) links, there is subtabulation cog (4) described subtabulation axle (27) upper end, there is subtabulation lower gear (28) described subtabulation axle (27) lower end, described interior measuring staff (25) one sides have tooth, the tooth of described interior measuring staff (25) one sides is meshed with subtabulation lower gear (28).
3. the two pellet balance centering type inside dial indicators of one according to claim 1, it is characterized in that: described interior measuring staff (25) overcoat has outside Range Extension bar (31), described outside Range Extension bar (31) by expander bar pellet (26) and for expander bar spring (30) be sleeved on interior measuring staff (25).
4. the two pellet balance centering type inside dial indicators of one according to claim 3, it is characterized in that: described inside dial indicator also has 2 subtabulations (21), described subtabulation (21) is in main shaft (23) both sides, the corresponding subtabulation axle of described each subtabulation (21) (27), outside described subtabulation axle (27), there is subtabulation shaft housing (3), in described subtabulation (21), there is subtabulation cog (4), described subtabulation cogs (4) and the indicator of subtabulation (21) links, there is subtabulation cog (4) described subtabulation axle (27) upper end, there is subtabulation lower gear (28) described subtabulation axle (27) lower end, described interior measuring staff (25) one sides have tooth, the tooth of described outside Range Extension bar (31) one sides is meshed with subtabulation lower gear (28).
5. the two pellet balance centering type inside dial indicators of one according to claim 1, it is characterized in that: there is a registration hole (24-3) upper surface of the Plug Division (24-1) of described interior measuring staff cover (24), the upper surface of described interior measuring staff (25) upper surface and upper box (2) all has a round corresponding with the pilot hole (24-3) of the upper surface of the Plug Division (24-1) of interior measuring staff cover (24), in the hole of described interior measuring staff (25) upper surface, there are interior measuring staff spring (15) and interior measuring staff pellet (14), described interior measuring staff pellet (14) is on interior measuring staff spring (15).
6. the two pellet balance centering type inside dial indicators of one according to claim 1, is characterized in that: between described push rod (13) upper surface and retainer plate (11), have briquetting (9), there is side described briquetting (9) both sides.
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| CN201410098418.0A CN103822557B (en) | 2014-03-18 | 2014-03-18 | A kind of double; two pellet balance centering type inside dial indicator |
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| CN201410098418.0A CN103822557B (en) | 2014-03-18 | 2014-03-18 | A kind of double; two pellet balance centering type inside dial indicator |
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| CN103822557B CN103822557B (en) | 2016-06-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500569A (en) * | 2016-12-28 | 2017-03-15 | 岳阳大陆激光技术有限公司 | Larger diameter internal bore survey tool |
| CN112577395A (en) * | 2020-12-17 | 2021-03-30 | 内蒙古北方重工业集团有限公司 | Deep hole inner diameter measuring device and measuring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE745882C (en) * | 1938-11-19 | 1944-05-24 | Friedrich Maier | Inside measuring device |
| DE2404266A1 (en) * | 1974-01-30 | 1975-08-07 | Chow Ju Chin | Internal dimensions measuring device - has extendable feelers operated by rotation of friction shaft |
| CN2314341Y (en) * | 1997-09-08 | 1999-04-14 | 青海量具刃具厂 | Inside diameter measuring head with gear and spiral three-claw structure |
| CN2700823Y (en) * | 2003-10-21 | 2005-05-18 | 哈尔滨量具刃具集团有限责任公司 | Lever-type inner diameter ten-thousandth micrometer |
| CN203731970U (en) * | 2014-03-18 | 2014-07-23 | 金陵科技学院 | Double-marble balance centering inside dial indicator |
-
2014
- 2014-03-18 CN CN201410098418.0A patent/CN103822557B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE745882C (en) * | 1938-11-19 | 1944-05-24 | Friedrich Maier | Inside measuring device |
| DE2404266A1 (en) * | 1974-01-30 | 1975-08-07 | Chow Ju Chin | Internal dimensions measuring device - has extendable feelers operated by rotation of friction shaft |
| CN2314341Y (en) * | 1997-09-08 | 1999-04-14 | 青海量具刃具厂 | Inside diameter measuring head with gear and spiral three-claw structure |
| CN2700823Y (en) * | 2003-10-21 | 2005-05-18 | 哈尔滨量具刃具集团有限责任公司 | Lever-type inner diameter ten-thousandth micrometer |
| CN203731970U (en) * | 2014-03-18 | 2014-07-23 | 金陵科技学院 | Double-marble balance centering inside dial indicator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500569A (en) * | 2016-12-28 | 2017-03-15 | 岳阳大陆激光技术有限公司 | Larger diameter internal bore survey tool |
| CN106500569B (en) * | 2016-12-28 | 2024-03-26 | 岳阳大陆激光技术有限公司 | Major diameter hole measuring tool |
| CN112577395A (en) * | 2020-12-17 | 2021-03-30 | 内蒙古北方重工业集团有限公司 | Deep hole inner diameter measuring device and measuring method |
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| CN103822557B (en) | 2016-06-15 |
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