CN110017749B - Positioning device for measuring jumping - Google Patents
Positioning device for measuring jumping Download PDFInfo
- Publication number
- CN110017749B CN110017749B CN201910371897.1A CN201910371897A CN110017749B CN 110017749 B CN110017749 B CN 110017749B CN 201910371897 A CN201910371897 A CN 201910371897A CN 110017749 B CN110017749 B CN 110017749B
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- Prior art keywords
- positioning
- rotating shaft
- base
- tray
- contact bearing
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- 230000009191 jumping Effects 0.000 title abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000003381 stabilizer Substances 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 210000000078 claw Anatomy 0.000 abstract description 34
- 230000006978 adaptation Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
- G01B5/0004—Supports
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/003—Measuring of motor parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a positioning device for measuring jumping, which comprises a hollow base, wherein a rotating shaft capable of horizontally rotating is inserted in a cavity of the base, a positioning mechanism for supporting the rotating shaft is arranged in the cavity of the base, a positioning disc assembly is arranged at the upper end of the rotating shaft and comprises a tray sleeved on the rotating shaft, a plurality of positioning claws capable of radially positioning are arranged on the tray, and the positioning disc assembly further comprises a locking guide mechanism for positioning the positioning claws and a plurality of positioning claws capable of horizontally supporting and clamping a belt pulley to be measured, wherein the locking guide mechanism is arranged on the tray and used for locking the positioning claws. The invention relates to a measuring and jumping positioning device, which belongs to the technical field of whole vehicle accessory testing, has reasonable structural design, can adapt to pulleys of different types, and has good adaptation; the belt pulley to be tested is accurately and stably supported, and errors are effectively reduced; the positioning claw of the measurement jumping positioning device can be used for positioning and clamping belt pulleys with different sizes, and is good in adaptation and convenient to adjust.
Description
Technical Field
The invention relates to the technical field of detection of engine belt pulleys, in particular to a positioning device for measuring runout.
Background
At present, when the runout of the pulley is measured, a special mandrel is usually adopted to pass through the shaft hole of the pulley for positioning during the radial runout of the pulley assembly positioning hole and the pulley groove side surface, and a meter-beating method is adopted on a deflection instrument for measurement.
When the length of the shaft hole of the belt pulley is too large, the special spindle which is required to be used is too long, the stability is insufficient during rotation, and the cost is high.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and aims to provide the device for measuring the runout, which is convenient to position the belt pulley and has good adaptability.
In order to achieve the above purpose, the invention provides a positioning device for measuring jumping, which comprises a hollow base, wherein a rotating shaft capable of horizontally rotating is inserted in a cavity of the base, a positioning mechanism for supporting the rotating shaft is arranged in the cavity of the base, a positioning disc assembly is arranged at the upper end of the rotating shaft, the positioning disc assembly comprises a tray sleeved on the rotating shaft, a plurality of positioning claws capable of radially positioning are arranged on the tray, the positioning disc assembly further comprises a locking guide mechanism for positioning the positioning claws, and the positioning claws can horizontally support and clamp a belt pulley to be measured.
Further, the positioning claw comprises a sliding seat, positioning bolts connected with the rotating shaft are arranged at the two ends of the sliding seat in a penetrating mode, and an extrusion spring is arranged between the front ends of the positioning bolts and the sliding seat.
Furthermore, the sliding seat is provided with a guide hole matched with the positioning bolt; and an elastic snap ring which is matched with the bolt head of the positioning bolt is arranged at the outer end of the guide hole.
As a further improvement, two sides of the bottom end of the sliding seat are provided with bottom plates; the outer end of the sliding seat is provided with a positioning boss in an upward protruding mode, and the positioning boss is used for horizontally supporting the tested belt pulley.
Further, the locking guide mechanism comprises a guide plate which is arranged on the tray and is matched with the bottom plates at two sides of the sliding seat, and a pressing plate which is arranged on the guide plate and is matched with the top surface of the bottom plate, and a limiting structure is arranged between the pressing plate and the sliding seat; the pressing plate is provided with a cover plate sleeved on the rotating shaft, and the cover plate is provided with a compression screw which is matched with the top surface of the sliding seat.
Further, the upper end of the rotating shaft is provided with a flange plate for supporting the tray, the outer cylindrical surface of the flange plate is provided with knurled reticulate patterns, and the flange plate is connected with the tray, the pressing plate and the guide plate through a bolt structure.
Still further, the limit structure includes one side of clamp plate be equipped with the limit spring of one side phase adaptation of slide one side be equipped with limit spring looks adaptation's spacing heavy groove on one side on slide top.
As a further improvement, the positioning mechanism comprises a first radial contact bearing which is arranged at the lower end of the cavity of the base and is matched with the lower end of the rotating shaft, and a bearing bush which is arranged at the upper end of the cavity of the base, wherein an axial contact bearing and a second radial contact bearing which support the rotating shaft are arranged in the bearing bush, and a positioning step which is matched with the axial contact bearing is arranged on the rotating shaft.
Further, a bearing spacer ring for supporting the second radial contact bearing is arranged between the inner wall of the bearing bush and the axial contact bearing, and a first check ring which is adaptive to the outer ring of the second radial contact bearing is arranged at the upper end of the bearing bush; the lower end of the rotating shaft is provided with a locking nut which is matched with the inner ring of the first radial contact bearing, and the lower end of the cavity of the base is provided with a second check ring which is matched with the outer ring of the first radial contact bearing.
Furthermore, the cavity in the base is of a stepped hole structure which is vertically communicated; a handle is arranged on the periphery of the base; the bottom of base is equipped with the location stabilizer blade, be equipped with the connecting hole on the location stabilizer blade.
Advantageous effects
Compared with the prior art, the jumping measurement positioning device has the following beneficial effects: the measuring jump positioning device has reasonable structural design, can adapt to belt pulleys of different models, and has good adaptation; the belt pulley to be tested is accurately and stably supported, and errors are effectively reduced; the positioning claw of the measurement jumping positioning device can be used for positioning and clamping belt pulleys with different sizes, and is good in adaptation and convenient to adjust.
Drawings
FIG. 1 is a front elevational view of the measuring jump positioning apparatus of the present invention;
FIG. 2 is an enlarged front view of the structure of the puck assembly of the present invention;
FIG. 3 is a cross-sectional view of the structure in the direction A-A of FIG. 2;
FIG. 4 is a cross-sectional view of the structure in the direction B-B in FIG. 2;
FIG. 5 is a schematic view of the assembly of the base and shaft connection of the present invention;
FIG. 6 is a cross-sectional view of the structure in the direction C-C of FIG. 5;
FIG. 7 is a cross-sectional view of the structure of the shaft and puck assembly connection of the present invention;
FIG. 8 is an enlarged cross-sectional view of the structure of the base of the present invention;
FIG. 9 is an enlarged cross-sectional view of the structure of the rotary shaft of the present invention;
FIG. 10 is an enlarged front view of the structure of the positioning pawl of the present invention;
FIG. 11 is an enlarged left side view of the positioning pawl of the present invention;
FIG. 12 is an enlarged cross-sectional view of the structure in the direction D-D in FIG. 11;
FIG. 13 is a top plan view of the structure of the cover plate of the present invention;
FIG. 14 is a top plan view of the platen and positioning pawl connection of the present invention;
fig. 15 is a measurement schematic diagram of the measurement run-out positioning device of the present invention.
In the figure: 1. a base; 11. a first radial contact bearing; 12. an axial contact bearing; 13. a second radial contact bearing; 14. a bearing bush; 15. bearing spacer rings; 16. a first retainer ring; 17. a lock nut; 18. the second check ring; 2. a rotating shaft; 21. a flange plate; 22. a positioning hole; 23. a threaded rod; 3. a positioning disk assembly; 31. a tray; 32. a guide plate; 33. a pressing plate; 34. a cover plate; 35. a compression screw; 37. a relief groove; 38. a limit spring; 4. a positioning claw; 41. a slide; 42. a positioning bolt; 43. a guide hole; 44. extruding a spring; 45. positioning the boss; 46. a bottom plate; 47. an elastic clasp; 48. limiting sink groove; 5. a handle; 6. Positioning support legs; 7. a belt pulley to be tested; 8. and (5) a dial indicator.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
The specific embodiments of the present invention are as follows: as shown in fig. 1-15, a positioning device for measuring jumping comprises a hollow base 1, a rotating shaft 2 capable of horizontally rotating is inserted in a cavity of the base 1, a positioning mechanism for supporting the rotating shaft 2 is arranged in the cavity of the base 1, a positioning disc assembly 3 is arranged at the upper end of the rotating shaft 2, the positioning disc assembly 3 comprises a tray 31 sleeved on the rotating shaft 2, a plurality of positioning claws 4 capable of radially positioning are arranged on the tray 31, the number of the positioning claws 4 is three, the positioning claws are uniformly distributed around the center of the positioning disc assembly 3, the positioning disc assembly 3 further comprises a locking guide mechanism for the positioning claws 4 arranged on the tray 31, and the plurality of positioning claws 4 can horizontally support and clamp a belt pulley 7 to be measured. According to the positioning device for measuring the circle runout, the belt pulley 7 to be measured is horizontally placed on the positioning claw 4, the positioning hole on one side of the belt pulley 7 to be measured is of a counter bore structure, the belt pulley 7 to be measured is horizontally supported through the top surface of the positioning claw 4, the positioning claw 4 can be radially positioned to enable the positioning claw 4 to be abutted against the hole wall of the positioning hole on one side of the belt pulley 7 to be measured, and accordingly the belt pulley 7 to be measured is tightly propped against, the belt pulley 7 to be measured is stably supported, and is firmly clamped, so that the belt pulley 7 to be measured can horizontally rotate; the rotating shaft 2 is rotated to enable the tested belt pulley 7 to horizontally rotate, and the radial runout of the positioning hole and the side surface of the pulley groove of the tested belt pulley 7 can be measured by operating the dial indicator 8; the positioning device is used for positioning the counter bore on one side of the tested belt pulley 7, can accurately and stably support the tested belt pulley 7, effectively reduces errors, can adapt to belt pulleys of different models, and is good in adaptation.
The positioning device for measuring the circle runout can also be used for detecting the runout of the piston ring groove, can be used for positioning a cylindrical structure with a counter bore, and has wide application range.
In the embodiment, the positioning claw 4 comprises a sliding seat 41, positioning bolts 42 connected with the rotating shaft 2 are arranged on the sliding seat 41 and penetrate through the two ends of the sliding seat 41, and an extrusion spring 44 is arranged between the front end of the positioning bolt 42 and the sliding seat 41; three positioning holes 22 which are arranged in a radial extending manner are uniformly distributed on the rotating shaft 2, the positioning holes 22 are matched with the positioning bolts 42, and accommodating holes matched with the extrusion springs 44 are arranged at the orifices of the positioning holes 22 and used for guiding and positioning the extrusion springs 44; the positioning diameter of the positioning claw 4 is adjusted through the positioning bolt 42, the positioning claw 4 can be matched with the positioning holes of pulleys of different types, the adjustment is convenient, and the positioning claw 4 can be ejected outwards by only loosening the positioning bolt 42 and extruding the spring 44.
In this embodiment, the slide 41 is provided with a guiding hole 43 adapted to the positioning bolt 42, the guiding hole 43 has a stepped hole structure with two large ends and a small middle, and the guiding hole 43 guides and positions the extrusion spring 4 to ensure that the extrusion spring 4 slides in the radial direction with the slide 41; the outer end of the guide hole 43 is provided with an elastic snap ring 47 which is matched with the bolt head of the positioning bolt 42, the positioning bolt 42 is further limited, loosening and falling-out in the using process are prevented, safety is ensured, and the positioning bolt 42 is an inner hexagonal cylindrical head screw, and the model is M6X75.
In the present embodiment, the bottom plates 46 are disposed on two sides of the bottom end of the sliding seat 41, and the bottom plates 46 enlarge the contact area with the tray 31, so as to ensure smooth radial sliding; the outer end of the sliding seat 41 is provided with a positioning boss 45 which is used for horizontally supporting the tested belt pulley 7 in an upward protruding mode, the tested belt pulley 7 is horizontally supported by the positioning bosses 45 of the three sliding seats 41, the outer end face of the positioning boss 45 is an arc positioning face which can be matched with the wall of a positioning hole of the tested belt pulley 7, the arc positioning face is abutted with the wall of the positioning hole, and the positioning hole of the tested belt pulley 7 is prevented from being scratched, so that the tested belt pulley 7 is clamped.
In this embodiment, the locking guide mechanism includes a guide plate 32 on the tray 31 and adapted to the bottom plates 46 on two sides of the slide 41, and a pressing plate 33 on the guide plate 32 and adapted to the top surface of the bottom plate 46, where the pressing plate 33 is provided with a cover plate 34 sleeved on the rotating shaft 2, and the positioning claw 4 can slide along the guide chute formed by the guide plate 32, the pressing plate 33 and the tray 31, so as to ensure that the positioning claw 4 slides radially and stably; the cover plate 34 is provided with a compression screw 35 which is matched with the top surface of the sliding seat 41, the compression screw 35 compresses the positioning claw 4, the positioning claw 4 is prevented from loosening, and the positioning claw 4 is ensured to clamp the tested belt pulley 7 reliably.
In this embodiment, the upper end of the rotating shaft 2 is provided with a flange plate 21 for supporting the tray 31, the outer cylindrical surface of the flange plate 21 is provided with knurled reticulation, the knurled reticulation is convenient for a worker to apply force, the rotating shaft 2 is driven to rotate by stirring the flange plate 21, and the flange plate 21 is connected with the tray 31, the pressing plate 33 and the guide plate 32 through a bolt structure. The flange plate 21 is provided with a boss connected with the tray 31, and the boss horizontally supports the tray 31; ensuring the horizontal rotation of the puck assembly 3.
In this embodiment, the guide plate 32 and the pressing plate 33 are sector plates disposed around the rotating shaft 2, and counter bores for mounting screws are formed in the guide plate 32, the pressing plate 33, the tray 31 and the cover plate 34 to let the screw heads out, so as to prevent the screw heads from interfering with external components.
In this embodiment, the cover plate 34 is provided with a relief groove 37 adapted to the positioning boss 45 at the position of the compression screw 35, and the sliding range of the positioning boss 45 is enlarged by the arrangement of the relief groove 37, so that the outer diameter of the positioning boss 45 can be smaller than the diameter of the cover plate 34, and the positioning of the small-diameter belt pulley is satisfied.
In the present embodiment, a limiting structure is provided between the pressing plate 33 and the slide 41; the limit structure comprises a limit spring 38 which is arranged on one side of the pressing plate 33 and is matched with one side of the sliding seat 41, a sinking groove for installing the limit spring 38 is arranged on one side of the pressing plate 33, a limit sinking groove 48 which is matched with the limit spring 38 is arranged on one side of the top end of the sliding seat 41, the limit spring 38 is W-shaped, the side surface of the sliding seat 41 is extruded, the sliding seat 41 is further clamped, and the positioning claw 4 is prevented from loosening.
In the embodiment, the positioning mechanism comprises a first radial contact bearing 11 which is arranged at the lower end of the cavity of the base 1 and is matched with the lower end of the rotating shaft 2, and a bearing bush 14 which is arranged at the upper end of the cavity of the base 1, wherein an axial contact bearing 12 and a second radial contact bearing 13 which support the rotating shaft 2 are arranged in the bearing bush 14, and the second radial contact bearing 13 is arranged above the axial contact bearing 12; the rotating shaft 2 is provided with a positioning step which is matched with the axial contact bearing 12; the rotating shaft 2 is supported and guided through the first radial contact bearing 11 and the second radial contact bearing 13, so that the rotating shaft 2 is ensured to be vertically arranged; the axial contact bearing 12 supports the rotating shaft 2 and receives the pressure applied by the rotating shaft 2.
In the embodiment, a bearing spacer 15 for supporting the second radial contact bearing 13 is arranged between the inner wall of the bearing bush 14 and the axial contact bearing 12, and the bearing spacer 15 supports the second radial contact bearing 13 to ensure that the second radial contact bearing 13 is installed in place; the upper end of the bearing bush 14 is provided with a first retainer ring 16 which is matched with the outer ring of the second radial contact bearing 13; the lower end of the rotating shaft 2 is provided with a lock nut 17 which is matched with the inner ring of the first radial contact bearing 11, and the lower end of the cavity of the base 1 is provided with a second check ring 18 which is matched with the outer ring of the first radial contact bearing 11. The first check ring 16 and the second check ring 18 can prevent the second radial contact bearing 13 and the first radial contact bearing 11 from generating axial displacement, and can ensure that the second radial contact bearing 13 and the first radial contact bearing 11 are matched with the rotating shaft 2 accurately.
The bottom of the rotating shaft 2 is provided with a threaded head 23 which is matched with the locking nut 17, the rotating shaft 2 is locked on the base 1 through the locking nut 17, and the locking is convenient and the operation is simple.
In this embodiment, the bearing bush 14 includes a sleeve adapted to the upper end of the cavity of the base 1, a convex edge adapted to the top surface of the base 1 is provided at the top end of the sleeve, a supporting portion adapted to the bottom surface of the axial contact bearing 12 is provided at the bottom end of the sleeve, a certain distance is provided between the supporting portion and the step surface of the inner cavity of the base 1, the bearing bushes 14 with different heights can be set according to the height dimension of the rotating shaft 2 and are installed in the base 1, and the base 1 is well adapted.
In the embodiment, the cavity in the base 1 is of a stepped hole structure which is vertically penetrated; the periphery of the base 1 is provided with detachable handles 5, and four handles 5 are uniformly arranged on the periphery of the base 1; the bottom of base 1 is equipped with location stabilizer blade 6, and the bottom of base 1 is drawn the sky and is set up, is equipped with the connecting hole on the location stabilizer blade 6, and the processing area of the locating surface of base 1 bottom surface can be reduced in the setting of location stabilizer blade 6, and base 1 level of being convenient for is placed on the workstation.
The concrete assembly is as follows: firstly, vertically installing a rotating shaft 2 on a base 1 (as shown in figures 5 and 6), then installing and fixing a tray 31, a guide plate 32, a pressing plate 33, a cover plate 43 and a positioning claw 4 of a positioning disc assembly 3, adjusting the coaxiality of central holes of two different parts of the rotating shaft 2 and the cover plate 43 by means of a deflection instrument, and punching an assembly phase mark on the tray 31 and a flange 21 so as to be convenient for quickly installing and locking the positioning claw 4 by a compression screw 35; placing the assembled tool on a grinding machine, and processing the top surfaces of the positioning bosses 45 on the three positioning claws 4 to enable the upper end surfaces of the three positioning bosses 45 to form a plane coplanar; after the positioning claw 4 is disassembled, the cover plate 43 of the positioning disc assembly 3 on the rotating shaft 2 is polished, so that the outer cylindrical surface of the cover plate 43 is matched with the wall of the positioning hole of the tested belt pulley 7.
In use, as shown in fig. 15, the fluctuation flange 21 rotates the positioning disk assembly 3, and radial runout measurement is performed on the positioning hole and the side surface of the pulley groove of the measured pulley 7 by using a dial indicator.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (6)
1. The utility model provides a measure positioner that beats, includes hollow base (1), its characterized in that, insert in the cavity of base (1) and be equipped with pivot (2) that can horizontal rotation, be equipped with in the cavity of base (1) and support the positioning mechanism of pivot (2), the upper end of pivot (2) is equipped with positioning disk subassembly (3), positioning disk subassembly (3) are including cover tray (31) of establishing on pivot (2), be equipped with a plurality of positioning pawl (4) that can radial position adjustment on tray (31), positioning disk subassembly (3) still include the location that are equipped with on tray (31) locking guiding mechanism of positioning pawl (4), a plurality of positioning pawl (4) can horizontal support and press from both sides tight belt pulley (7) being measured, positioning pawl (4) are equipped with positioning bolt (42) with pivot (2) are connected on slide (41), be equipped with between the front end of positioning bolt (42) and slide (41) are equipped with extrusion guiding hole (43) on positioning bolt (41); an elastic snap ring (47) which is matched with the bolt head of the positioning bolt (42) is arranged at the outer end of the guide hole (43), and a bottom plate (46) is arranged at two sides of the bottom end of the sliding seat (41); the outer end of the sliding seat (41) is provided with a positioning boss (45) for horizontally supporting the tested belt pulley (7) in an upward protruding mode, the locking guide mechanism comprises a guide plate (32) which is arranged on the tray (31) and is matched with bottom plates (46) on two sides of the sliding seat (41) and a pressing plate (33) which is arranged on the guide plate (32) and is matched with the top surface of the bottom plates (46), and a limiting structure is arranged between the pressing plate (33) and the sliding seat (41); the pressing plate (33) is provided with a cover plate (34) sleeved on the rotating shaft (2), and the cover plate (34) is provided with a pressing screw (35) which is matched with the top surface of the sliding seat (41).
2. The device for measuring runout according to claim 1, wherein a flange plate (21) for supporting the tray (31) is arranged at the upper end of the rotating shaft (2), knurled reticulation is arranged on the outer cylindrical surface of the flange plate (21), and the flange plate (21) is connected with the tray (31), the pressing plate (33) and the guide plate (32) through a bolt structure.
3. The device according to claim 1, wherein the limit structure comprises a limit spring (38) adapted to one side of the slide (41) on one side of the pressing plate (33), and a limit sink (48) adapted to the limit spring (38) is provided on one side of the top end of the slide (41).
4. A measuring runout positioning device according to claim 1, 2 or 3, characterized in that the positioning mechanism comprises a first radial contact bearing (11) arranged at the lower end of the cavity of the base (1) and adapted to the lower end of the rotating shaft (2), and a bearing bush (14) arranged at the upper end of the cavity of the base (1), an axial contact bearing (12) and a second radial contact bearing (13) for supporting the rotating shaft (2) are arranged in the bearing bush (14), and a positioning step adapted to the axial contact bearing (12) is arranged on the rotating shaft (2).
5. A measuring runout positioning device according to claim 4, characterized in that a bearing spacer (15) supporting the second radial contact bearing (13) is arranged between the inner wall of the bearing bush (14) and the axial contact bearing (12), the upper end of the bearing bush (14) is provided with a first retainer ring (16) adapted to the outer ring of the second radial contact bearing (13); the lower end of the rotating shaft (2) is provided with a lock nut (17) which is matched with the inner ring of the first radial contact bearing (11), and the lower end of the cavity of the base (1) is provided with a second check ring (18) which is matched with the outer ring of the first radial contact bearing (11).
6. The device for measuring jump positioning according to claim 5, wherein the cavity in the base (1) is a stepped hole structure which is vertically through; a handle (5) is arranged on the periphery of the base (1); the bottom of base (1) is equipped with location stabilizer blade (6), be equipped with the connecting hole on location stabilizer blade (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371897.1A CN110017749B (en) | 2019-05-06 | 2019-05-06 | Positioning device for measuring jumping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371897.1A CN110017749B (en) | 2019-05-06 | 2019-05-06 | Positioning device for measuring jumping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110017749A CN110017749A (en) | 2019-07-16 |
| CN110017749B true CN110017749B (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910371897.1A Active CN110017749B (en) | 2019-05-06 | 2019-05-06 | Positioning device for measuring jumping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110017749B (en) |
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| CN110017749A (en) | 2019-07-16 |
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