CN112393695B - Bolt faying face true contact area measuring device - Google Patents
Bolt faying face true contact area measuring device Download PDFInfo
- Publication number
- CN112393695B CN112393695B CN202011441526.5A CN202011441526A CN112393695B CN 112393695 B CN112393695 B CN 112393695B CN 202011441526 A CN202011441526 A CN 202011441526A CN 112393695 B CN112393695 B CN 112393695B
- Authority
- CN
- China
- Prior art keywords
- face
- test piece
- bolt
- connecting block
- rectangle
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/28—Measuring arrangements characterised by the use of optical techniques for measuring areas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
- F16H1/225—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes with two or more worm and worm-wheel gearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a device for measuring the real contact area of a bolt joint surface, which comprises a base, wherein the upper part of the base is rotatably connected with an overturning adjusting piece, and the upper end surface of the overturning adjusting piece is fixedly connected with a lower test piece; the replaceable connecting block is arranged in the lower test piece and comprises a threaded blind hole and limiting jacks, the threaded blind hole is formed in the rear side of the upper end face of the replaceable connecting block, two T-shaped sliding grooves are formed in the left end face and the right end face of the replaceable connecting block, the two limiting jacks are formed in the middle of the left end face and the right end face of the replaceable connecting block, and the replaceable connecting block is connected through threads at the lower end of a threaded blind hole bolt; the top end surface of the lower test piece is connected with an upper test piece through a bolt; the bottom of the lower test piece is provided with a bidirectional plugging mechanism; two limiting mechanisms are arranged at the upper part of the left side of the base, and the included angle between the two limiting mechanisms is ninety degrees; four included angles of the upper end surface of the base are respectively provided with an anti-loosening mechanism; four auxiliary adjusting parts are arranged at the bottom of the turnover adjusting part in a bilateral symmetry manner.
Description
Technical Field
The invention belongs to the technical field of measuring devices, and particularly relates to a device for measuring the real contact area of a bolt joint surface.
Background
In order to facilitate processing, manufacturing, transporting and meeting functional requirements, parts in a mechanical system are generally not continuous whole bodies, but a whole machine formed by combining a plurality of parts according to certain functional requirements.
Chinese patent application CN201710448067.5 discloses a device and method for measuring the true contact area of a bolt joint surface, which includes a supporting box seat, a lower test piece is fixed on the supporting box seat, the lower test piece is connected with an upper test piece through a bolt, a through hole is arranged on the supporting box seat, a plurality of nanoscale optical fiber displacement sensors are arranged in the through hole, the nanoscale optical fiber displacement sensors are connected on the lower test piece through an adjusting component, the top of each nanoscale optical fiber displacement sensor passes through the lower test piece and is connected to the joint surface of the lower test piece and the upper test piece, and the bottom of each nanoscale optical fiber displacement sensor is connected to a computer through a signal acquisition system. The invention can utilize the nano-scale optical fiber displacement sensor to carry out the test of the real combination area measurement of the bolt combination surface under the pre-tightening load, and also can simultaneously carry out the test of the change of the pre-deformation of the bolt combination surface along with the change of the pre-tightening load.
Based on the search of the above patent, it is found that, when the measuring device is used, although the true bonding area of the bolt bonding surface under the pre-tightening load can be measured by the nano-scale optical fiber displacement sensor, the measuring device has the following disadvantages in the actual use process, such as: the specification of the threaded connection hole in the lower test piece in the measuring device is fixed, so that the type of the bolt connected between the lower test piece and the upper test piece cannot be replaced, the pretightening forces of bolts of different types are different, the measuring range of the measuring device is further reduced, and when the measuring range is adjusted, the outer sleeve is directly rotated by bare hands by rotating the outer sleeve of the adjusting assembly, the rotating angle range of the outer sleeve is difficult to control, the accuracy of the optical fiber displacement sensor in adjusting the measuring range is greatly reduced, and when the measuring device adjusts the optical fiber displacement sensor, people are required to look up at the bottom of the optical fiber displacement sensor, so that the convenience of adjusting the optical fiber displacement sensor is greatly reduced.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a device for measuring the real contact area of a bolt joint surface, so as to solve the problems that the specifications of the internal thread connecting hole of the lower test piece in the measuring device are fixed, the types of bolts connected between the lower test piece and the upper test piece can not be replaced, and the pretightening force of bolts with different types is different, thereby reducing the measuring range of the measuring device, and when the measuring range of the optical fiber displacement sensor in the measuring device is adjusted, because the outer sleeve of the adjusting component is rotated by hands, the outer sleeve is directly rotated, the range of the rotation angle is difficult to control, thereby greatly reducing the precision of the optical fiber displacement sensor when adjusting the measuring range, and when the measuring device adjusts the optical fiber displacement sensor, because need people to look up at the bottom of optic fibre displacement sensor and go on, and then greatly reduced the problem of the convenience when optic fibre displacement sensor adjusts.
The invention relates to a device for measuring the real contact area of a bolt joint surface, which has the advantages that the purpose and the effect are achieved by the following specific technical means:
a device for measuring the real contact area of a bolt joint surface comprises a base, wherein the upper part of the base is rotatably connected with an overturning adjusting piece, and the upper end surface of the overturning adjusting piece is fixedly connected with a lower test piece; the replaceable connecting block is arranged in the lower test piece and comprises a threaded blind hole and limiting jacks, the threaded blind hole is formed in the rear side of the upper end face of the replaceable connecting block, two T-shaped sliding grooves are formed in the left end face and the right end face of the replaceable connecting block, the two limiting jacks are formed in the middle of the left end face and the right end face of the replaceable connecting block, and the replaceable connecting block is connected through threads at the lower end of a threaded blind hole bolt; the top end surface of the lower test piece is connected with an upper test piece through a bolt; the bottom of the lower test piece is provided with a bidirectional plugging mechanism; two limiting mechanisms are arranged at the upper part of the left side of the base, and the included angle between the two limiting mechanisms is ninety degrees; four included angles of the upper end surface of the base are respectively provided with an anti-loosening mechanism; the bottom of the turning adjusting piece is provided with four auxiliary adjusting pieces in a left-right symmetrical shape; four fixed screw sleeves are arranged in the bottom end surface of the lower test piece in an annular array manner, and the lower end of the outer part of each fixed screw sleeve is connected with an outer sleeve through threads; an optical fiber displacement sensor penetrating through the inside of the fixed threaded sleeve is arranged inside each outer sleeve, and the upper end of the optical fiber displacement sensor penetrates through the lower test piece.
Further, the base includes fixing bolt, the backup pad, first stopper, the second stopper, fillet limit gear, four contained angle departments of base up end all run through connection have a fixing bolt, and every fixing bolt upper end outside is equipped with fillet limit gear, the base upper end is personally submitted the bilateral symmetry form and is equipped with two backup pads, and two inside all fixed the inlaying of backup pad back upper end have a bearing, terminal surface and right-hand member face are equipped with first stopper and second stopper respectively before the backup pad in left side, fillet limit gear periphery is personally submitted the annular array form and is equipped with fillet limit gear, fixing bolt's fastening turns to for clockwise turning to.
Further, the upset regulating part includes fixed jack, and both ends face central point portion all is equipped with a pivot about the upset regulating part, and four fixed jacks have been seted up to the symmetry form around the upset regulating part left end face is, and circular through-hole has been seted up to upset regulating part up end central point portion, and both ends face all is equipped with a handle around the upset regulating part, and when upset regulating part and base were in the mounted state, two pivots rotated respectively on the upset regulating part and are connected in two backup pad upper end bearings.
Further, lower test piece includes circular test block, rectangle mounting groove and rectangle opening, and lower test block upper end is equipped with circular test block, and circular test block top face has last test piece through bolted connection, and the rectangle mounting groove has been seted up to the terminal surface before the lower test piece, and the inside left and right sides face in rectangle mounting groove all is equipped with two T type sliders, and the rectangle opening that runs through the rectangle mounting groove is seted up to lower test piece left end face lower part.
Furthermore, when the replaceable connecting block and the lower test piece are in an installation state, the four T-shaped sliding grooves in the replaceable connecting block are respectively connected with the four T-shaped sliding blocks in the rectangular installation groove in a sliding mode.
Further, two-way grafting mechanism includes the actuating lever, drive board and peg graft pole, the outside both ends of actuating lever all rotate through the bearing and are connected with the rectangle piece of fixing test piece lower part up end down, and the actuating lever outside is the symmetry form and is equipped with two reverse screw threads, the outside both ends of actuating lever are connected with two drive boards through two reverse screw threads, and two drive board opposite face upper portion all are equipped with two peg graft poles, when two-way grafting mechanism is in the mounted state with removable connecting block, four peg graft poles peg graft mutually with four spacing jacks on the removable connecting block respectively.
Further, stop gear includes rectangle casing, rectangle slider, T type pull rod and spacing inserted bar, and rectangle casing fixed connection is at a backup pad left end face in the left side, and the inside sliding connection of rectangle casing has the rectangle slider, and the rectangle slider right-hand member is personally submitted the symmetry and is described and be equipped with two spacing inserted bars, and rectangle slider left end face central point be equipped with rectangle casing left end face sliding connection's T type pull rod, the outside rectangular casing that is located of T type pull rod has cup jointed the spring.
Further, locking mechanism that moves includes square sliding housing and locking slider that moves, square sliding housing fixed connection is in base up end contained angle department, and the inside sliding connection of square sliding housing has locking slider that moves, and locking slider head end that moves is equipped with the triangle stopper, and locking slider up end that moves is equipped with the pulling post of square sliding housing top bar sliding connection, the inside locking slider afterbody that is located of square sliding housing installs the spring, locking slider head end triangle stopper that moves closely contacts with fillet limit gear outer peripheral face.
Furthermore, the auxiliary adjusting part comprises a worm, a worm wheel and a driving gear, the worm is rotatably connected to the bottom end face of the turnover adjusting part through two rotating shaft supports, the worm wheel and the driving gear are fixedly connected through a rotating shaft, the upper ends of the rotating shafts on the worm wheel and the driving gear are rotatably connected with a shaft sleeve fixed at the edge of a circular through hole in the bottom end face of the turnover adjusting part, and the worm wheel is meshed with the worm; when the turnover adjusting piece is in a horizontal state, two limiting insertion rods in one limiting mechanism at the upper part are respectively inserted with two fixed insertion holes at the front side of the turnover adjusting piece.
Further, the outer sleeve comprises a driven gear, the lower end of the outer portion of the outer sleeve is provided with the driven gear, and the driven gear is meshed with the driving gear when the outer sleeve and the auxiliary adjusting piece are in the installation state.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the arrangement of the replaceable connecting block, when bolts of different types need to be replaced, the two driving plates are moved in opposite directions under the action of two reverse threads outside the driving rod by manually rotating the driving rod, so that the insertion rods on the two driving plates are pulled out of the limiting insertion holes in the replaceable connecting block, then the replaceable connecting block is slid forwards, then the replaceable connecting block matched with the bolt to be replaced is slid into the rectangular mounting groove, then the driving rod is rotated reversely, so that the two driving plates move in opposite directions, the insertion rods on the two driving plates are inserted back into the limiting insertion holes, then the lower end of the bolt to be replaced is screwed into the threaded blind hole in the replaceable connecting block, and further the measuring range of the measuring device is improved.
2. According to the invention, through the arrangement of the auxiliary adjusting piece, before the optical fiber displacement sensor is adjusted, the T-shaped pull rod in the upper limiting mechanism is pulled leftwards, so that the rectangular sliding block drives the upper two limiting insertion rods to move leftwards, the upper two limiting insertion rods are pulled out from the two fixed insertion holes in the front side of the turnover adjusting piece, then the front side of the turnover adjusting piece is rotated ninety degrees upwards, the lower two limiting insertion rods in the lower limiting mechanism are inserted into the two fixed insertion holes in the rear side of the turnover adjusting piece, so that the turnover adjusting piece is effectively limited, and the bottom of the turnover adjusting piece is positioned in front of people, so that people do not need to look upwards at the bottom of the optical fiber displacement sensor, and the convenience in adjustment of the optical fiber displacement sensor is greatly improved.
3. According to the invention, through the arrangement of the turnover adjusting piece, when the measuring range of the optical fiber displacement sensor needs to be adjusted, the worm is manually rotated, the worm wheel drives the driving gear to rotate through the rotating shaft, and then the driving gear drives the driven gear to rotate, so that the driven gear drives the outer sleeve to rotate, the measuring range of the optical fiber displacement sensor in the outer sleeve is adjusted, and the rotating angle range of the outer sleeve is easier to control due to the larger transmission ratio between the worm and the worm wheel, and the accuracy of the optical fiber displacement sensor in adjusting the measuring range is greatly improved.
Drawings
Fig. 1 is a first view structure diagram of the present invention.
Fig. 2 is a schematic diagram of a second viewing angle structure according to the present invention.
Fig. 3 is a schematic structural diagram in a split state of the present invention.
FIG. 4 is a structural schematic diagram of the lower test piece, the upper test piece and the replaceable connecting block after being disassembled.
Fig. 5 is a schematic structural diagram of the bidirectional plugging mechanism of the invention.
Fig. 6 is a partial sectional structural schematic view of the tumble adjuster, the lower test piece, and the upper test piece of the present invention.
Fig. 7 is a schematic top view of the base and the anti-loosening mechanism of the present invention.
Fig. 8 is a partial enlarged structural view of the invention at a in fig. 7.
Figure 9 is a schematic view of the tumble adjuster, supplemental adjuster, and outer sleeve configuration of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a base; 101. fixing the bolt; 102. a support plate; 103. a first stopper; 104. a second limiting block; 105. a fillet limit gear; 2. turning over the adjusting piece; 201. fixing the jack; 3. a lower test piece; 301. a circular test block; 302. a rectangular mounting groove; 303. a rectangular through opening; 4. loading a test piece; 5. a bolt; 6. the connecting block can be replaced; 601. a threaded blind hole; 602. limiting the jacks; 7. a bidirectional plugging mechanism; 701. a drive rod; 702. driving the plate; 703. a plug rod; 8. a limiting mechanism; 801. a rectangular housing; 802. a rectangular slider; 803. a T-shaped pull rod; 804. a limiting inserted rod; 9. an anti-loosening mechanism; 901. a square sliding shell; 902. an anti-loosening sliding block; 10. an auxiliary adjustment member; 1001. a worm; 1002. a worm gear; 1003. a driving gear; 11. an outer sleeve; 1101. a driven gear; 12. fixing the threaded sleeve; 13. an optical fiber displacement sensor.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in fig. 1 to 9, the device for measuring the actual contact area of the bolt joint surface of the present invention includes: the base 1, base 1 upper portion rotates and is connected with upset regulating part 2. The base 1 comprises a fixing bolt 101, a supporting plate 102, a first limiting block 103, a second limiting block 104 and a round angle limiting gear 105, the four included angles of the upper end face of the base 1 are all connected with the fixing bolt 101 in a penetrating mode, and the round angle limiting gear 105 is arranged on the outer portion of the upper end of each fixing bolt 101. Base 1 up end is personally submitted bilateral symmetry and is described and is equipped with two backup pads 102, and two backup pads 102 inside all fixed the inlaying in the back of the body upper end of the face in the back have a bearing, and the terminal surface is equipped with first stopper 103 and second stopper 104 respectively before backup pad 102 in the left side terminal surface and right-hand member face, and fillet limit gear 105 periphery is personally submitted annular array and is described and is equipped with the spacing tooth of fillet, and fixing bolt 101's fastening turns to for clockwise turning to. Test piece 3 under 2 up end fixedly connected with of upset regulating part, lower test piece 3 includes circular test block 301, rectangle mounting groove 302 and rectangle opening 303, lower test piece 3 upper end is equipped with circular test block 301, and circular test block 301 top face is connected with test piece 4 through bolt 5, rectangle mounting groove 302 has been seted up to the terminal surface before lower test piece 3, and the inside left and right sides face of rectangle mounting groove 302 all is equipped with two T type sliders, rectangle opening 303 that runs through rectangle mounting groove 302 is seted up to 3 left end face lower parts of lower test piece. Lower test piece 3 internally mounted has removable connecting block 6, and removable connecting block 6 includes screw thread blind hole 601 and spacing jack 602, and the side is opened to removable connecting block 6 up end rear side and is equipped with screw thread blind hole 601, and two T type spouts have all been seted up to both ends face about removable connecting block 6, and two spacing jacks 602 have all been seted up at both ends face middle parts about removable connecting block 6, and removable connecting block 6 is connected through screw thread under screw thread blind hole 601 bolt 5. The top end face of the lower test piece 3 is connected with an upper test piece 4 through a bolt 5. Lower test piece 3 bottom is equipped with two-way grafting mechanism 7, two-way grafting mechanism 7 includes actuating lever 701, drive board 702 and peg graft pole 703, the outside both ends of actuating lever 701 all are connected with the rectangle of fixing test piece 3 lower part up end down through the bearing rotation and prop up the piece, and actuating lever 701 outside is the symmetry form and is equipped with two reverse screw, the outside both ends of actuating lever 701 have two drive boards 702 through two reverse screw connection, and two drive board 702 opposite face upper portions all are equipped with two peg graft poles 703. When the two-way plugging mechanism 7 and the replaceable connecting block 6 are in an installation state, the four plugging rods 703 are respectively plugged with the four limit jacks 602 on the replaceable connecting block 6, so that the replaceable connecting block 6 can be effectively limited.
Example 2:
in a preferred embodiment, two limiting mechanisms 8 are arranged at the upper part of the left side of the base 1, the included angle between the two limiting mechanisms 8 is ninety degrees, and each limiting mechanism 8 comprises a rectangular shell 801, a rectangular sliding block 802, a T-shaped pull rod 803 and a limiting insertion rod 804. The rectangular shell 801 is fixedly connected to the left end face of one support plate 102 on the left side, a rectangular sliding block 802 is slidably connected to the inside of the rectangular shell 801, and two limiting insertion rods 804 are symmetrically arranged on the right end face of the rectangular sliding block 802. And the center part of the left end face of the rectangular sliding block 802 is provided with a T-shaped pull rod 803 which is connected with the left end face of the rectangular shell 801 in a sliding manner, and the outside of the T-shaped pull rod 803 is positioned inside the rectangular shell 801 and sleeved with a spring. Four included angle departments of base 1 up end all are equipped with one and prevent locking mechanism 9 that moves.
Example 3:
in a preferred embodiment, four auxiliary adjusting parts 10 are symmetrically arranged at the bottom of the turnover adjusting part 2, and each auxiliary adjusting part 10 comprises a worm 1001, a worm wheel 1002 and a driving gear 1003. The worm 1001 is connected in upset regulating part 2 bottom face through two pivot supports are rotated, is connected through a pivot is fixed between worm wheel 1002 and the driving gear 1003, and the pivot upper end is rotated on worm wheel 1002 and the driving gear 1003 and is connected with the axle sleeve of fixing in the circular through-hole edge of upset regulating part 2 bottom face, and worm wheel 1002 meshes with worm 1001 mutually. Four fixed swivel nuts 12 are installed to test piece 3 bottom end face inside and are the annular array form down, and when upset adjusting part 2 was in the horizontality, two spacing inserted bars 804 in a stop gear 8 on upper portion pegged graft mutually with two fixed jacks 201 in upset adjusting part 2 front side respectively to make upset adjusting part 2 can obtain effective limiting displacement. An outer sleeve 11 is connected to the outer lower end of each fixed threaded sleeve 12 through threads, the outer sleeve 11 comprises a driven gear 1101, the driven gear 1101 is arranged at the outer lower end of the outer sleeve 11, and the driven gear 1101 is meshed with the driving gear 1003 when the outer sleeve 11 and the auxiliary adjusting member 10 are in an installation state. An optical fiber displacement sensor 13 penetrating through the fixed threaded sleeve 12 is arranged inside each outer sleeve 11, and the upper end of the optical fiber displacement sensor 13 penetrates through the lower test piece 3.
Further, upset regulating part 2 includes fixed jack 201, both ends face central point portion all is equipped with a pivot about upset regulating part 2, four fixed jack 201 have been seted up to the symmetry form around 2 left end faces of upset regulating part are, and circular through-hole has been seted up to 2 up end central point portions of upset regulating part, both ends faces all are equipped with a handle around upset regulating part 2, when upset regulating part 2 is in the mounted state with base 1, two pivots rotate respectively and connect in two backup pad 102 upper end bearings on upset regulating part 2.
Example 4:
in a preferred embodiment, when the replaceable connecting block 6 and the lower test piece 3 are in the mounted state, the four T-shaped sliding grooves on the replaceable connecting block 6 are slidably connected with the four T-shaped sliding blocks in the rectangular mounting groove 302, so that the replaceable connecting block 6 is more stable in the lower test piece 3.
In a preferred embodiment, the anti-loosening mechanism 9 comprises a square sliding shell 901 and an anti-loosening sliding block 902, wherein the square sliding shell 901 is fixedly connected to a corner of the upper end face of the base 1. And the inside sliding connection of square sliding shell 901 has locking slider 902 that moves, and locking slider 902 head end that moves is equipped with the triangle stopper, and locking slider 902 up end be equipped with square sliding shell 901 top bar sliding connection's pulling post, the inside spring of installing in locking slider 902 afterbody that is located of square sliding shell 901, locking slider 902 head end triangle stopper that moves closely contacts with fillet limit gear 105 outer peripheral face to make fillet limit gear 105 can not carry out anticlockwise rotation, thereby avoided fixing bolt 101 to take place not hard up phenomenon.
Example 5:
the working principle of the invention is specifically as follows: when the measuring device is used, when bolts 5 of different types need to be replaced, the driving rod 701 is manually rotated, the two driving plates 702 move in opposite directions under the action of two reverse threads outside the driving rod 701, so that the insertion rods 703 on the two driving plates 702 are pulled out of the limiting insertion holes 602 on the replaceable connecting block 6, then the replaceable connecting block 6 slides out forwards, then the replaceable connecting block 6 matched with the bolt 5 to be replaced slides into the rectangular mounting groove 302, then the driving rod 701 rotates reversely, the two driving plates 702 move in opposite directions, so that the insertion rods 703 on the two driving plates 702 are inserted back into the limiting insertion holes 602, then the lower end of the bolt 5 to be replaced is screwed into the threaded blind hole 601 on the replaceable connecting block 6, and the measuring range of the measuring device is further improved;
before the optical fiber displacement sensor 13 is adjusted, the T-shaped pull rod 803 in the upper limiting mechanism 8 is pulled leftwards, so that the rectangular sliding block 802 drives the upper two limiting insertion rods 804 to move leftwards, the upper two limiting insertion rods 804 are pulled out of the two fixed insertion holes 201 in the front side of the turnover adjusting piece 2, then the front side of the turnover adjusting piece 2 is rotated ninety degrees upwards, the two limiting insertion rods 804 in the lower limiting mechanism 8 are inserted into the two fixed insertion holes 201 in the rear side of the turnover adjusting piece 2, the turnover adjusting piece 2 is effectively limited, and the bottom of the turnover adjusting piece 2 is positioned in front of people at the moment, so that people do not need to look upwards at the bottom of the optical fiber displacement sensor 13, and the convenience in adjustment of the optical fiber displacement sensor 13 is greatly improved;
when the measuring range of the optical fiber displacement sensor 13 needs to be adjusted, the worm 1001 is rotated manually, the worm wheel 1002 drives the driving gear 1003 to rotate through the rotating shaft, then the driving gear 1003 drives the driven gear 1101 to rotate, so that the driven gear 1101 drives the outer sleeve 11 to rotate, so that the measuring range of the optical fiber displacement sensor 13 in the outer sleeve 11 is adjusted, and a larger transmission ratio is arranged between the worm 1001 and the worm wheel 1002, so that the rotating angle range of the outer sleeve 11 is easier to control, and the accuracy of the optical fiber displacement sensor 13 in adjusting the measuring range is greatly improved.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a real area of contact measuring device of bolt faying face which characterized in that: the device comprises a base (1), wherein the upper part of the base (1) is rotatably connected with a turnover adjusting piece (2), and the upper end surface of the turnover adjusting piece (2) is fixedly connected with a lower test piece (3); the replaceable connecting block (6) is mounted inside the lower test piece (3), the replaceable connecting block (6) comprises a threaded blind hole (601) and a limiting jack (602), the threaded blind hole (601) is formed in the rear side of the upper end face of the replaceable connecting block (6), two T-shaped sliding grooves are formed in the left end face and the right end face of the replaceable connecting block (6), two limiting jacks (602) are formed in the middle of the left end face and the right end face of the replaceable connecting block (6), and the replaceable connecting block (6) is connected with the lower end of the bolt (5) through threads of the threaded blind hole (601); the top end face of the lower test piece (3) is connected with an upper test piece (4) through a bolt (5); the bottom of the lower test piece (3) is provided with a bidirectional plugging mechanism (7); the upper part of the left side of the base (1) is provided with two limiting mechanisms (8), and the included angle between the two limiting mechanisms (8) is ninety degrees; four included angles of the upper end surface of the base (1) are respectively provided with an anti-loosening mechanism (9); the bottom of the turning adjusting piece (2) is provided with four auxiliary adjusting pieces (10) in a left-right symmetrical shape; four fixed threaded sleeves (12) are mounted in the bottom end face of the lower test piece (3) in an annular array manner, and the lower end of the outer part of each fixed threaded sleeve (12) is connected with an outer sleeve (11) through threads; each outer sleeve (11) is internally provided with an optical fiber displacement sensor (13) penetrating through the inside of the fixed threaded sleeve (12), and the upper end of the optical fiber displacement sensor (13) penetrates through the lower test piece (3).
2. The device for measuring the actual contact area of the bolt-joining surface according to claim 1, wherein: base (1) includes fixing bolt (101), backup pad (102), first stopper (103), second stopper (104), fillet stop gear (105), four contained angle departments of base (1) up end all through connection have one fixing bolt (101), and every fixing bolt (101) upper end outside is equipped with fillet stop gear (105), base (1) up end is personally submitted the bilateral symmetry form and is equipped with two backup pads (102), and two backup pads (102) are inside all fixed the inlaying of face of the back of the body upper end back of the body have a bearing, one on the left side terminal surface and right-hand member face are equipped with first stopper (103) and second stopper (104) respectively before backup pad (102), fillet stop gear (105) periphery is personally submitted annular array form and is equipped with fillet limit tooth, the fastening of fixing bolt (101) turns to for clockwise turning to.
3. The device for measuring the actual contact area of the bolt-joining surface according to claim 2, wherein: upset regulating part (2) are including fixed jack (201), both ends face central point portion all is equipped with a pivot about upset regulating part (2), four fixed jack (201) have been seted up to symmetry form around upset regulating part (2) left end face is, and upset regulating part (2) up end central point portion has seted up circular through-hole, both ends face all is equipped with a handle around upset regulating part (2), works as when upset regulating part (2) is in the mounted state with base (1), two pivots are rotated respectively on upset regulating part (2) and are connected in two backup pad (102) upper end bearings.
4. The device for measuring the actual contact area of the bolt-joining surface according to claim 1, wherein: lower test piece (3) are including circular test block (301), rectangle mounting groove (302) and rectangle opening (303), test piece (3) upper end is equipped with circular test block (301) down, and circular test block (301) top face is connected with test piece (4) through bolt (5), rectangle mounting groove (302) have been seted up to the terminal surface before lower test piece (3), and the inside left and right sides face of rectangle mounting groove (302) all is equipped with two T type sliders, rectangle opening (303) that run through rectangle mounting groove (302) are seted up to test piece (3) left end face lower part down.
5. The device for measuring the actual contact area of the bolt-joining surface according to claim 4, wherein: when the replaceable connecting block (6) and the lower test piece (3) are in an installation state, the four T-shaped sliding grooves in the replaceable connecting block (6) are respectively connected with the four T-shaped sliding blocks in the rectangular installation groove (302) in a sliding mode.
6. The device for measuring the actual contact area of the bolt-joining surface according to claim 1, wherein: two-way grafting mechanism (7) are including actuating lever (701), drive board (702) and peg graft pole (703), the outside both ends of actuating lever (701) all are connected with the rectangle of fixing test piece (3) lower part up end down through the bearing rotation and prop up the piece, and actuating lever (701) outside is the symmetry form and is equipped with two reverse screw thread, the outside both ends of actuating lever (701) have two drive boards (702) through two reverse threaded connection, and two drive board (702) opposite face upper portion all is equipped with two peg graft poles (703), works as when two-way grafting mechanism (7) are in the mounted state with removable connecting block (6), four peg graft poles (703) are pegged graft mutually with four spacing jack (602) on removable connecting block (6) respectively.
7. The device for measuring the actual contact area of the bolt-joining surface according to claim 1, wherein: stop gear (8) are including rectangle casing (801), rectangle slider (802), T type pull rod (803) and spacing inserted bar (804), rectangle casing (801) fixed connection is in backup pad (102) left end face in left side, and inside sliding connection has rectangle slider (802) of rectangle casing (801), rectangle slider (802) right-hand member personally submits the symmetry form and is equipped with two spacing inserted bars (804), and rectangle slider (802) left end face central point portion be equipped with rectangle casing (801) left end face sliding connection's T type pull rod (803), T type pull rod (803) outside is located rectangle casing (801) inside and has cup jointed the spring.
8. The device for measuring the actual contact area of the bolt-joining surface according to claim 2, wherein: locking mechanism (9) of moving includes square sliding housing (901) and locking slider (902) that moves, square sliding housing (901) fixed connection is in base (1) up end contained angle department, and square sliding housing (901) inside sliding connection has locking slider (902) that moves, locking slider (902) head end that moves is equipped with the triangle stopper, and locking slider (902) up end be equipped with square sliding housing (901) top bar sliding opening sliding connection's pulling post, the spring is installed to inside being located locking slider (902) afterbody of square sliding housing (901), locking slider (902) head end triangle stopper and fillet limit gear (105) outer peripheral face closely contact.
9. The device for measuring the actual contact area of the bolt-joining surface according to claim 7, wherein: the auxiliary adjusting part (10) comprises a worm (1001), a worm wheel (1002) and a driving gear (1003), the worm (1001) is rotatably connected to the bottom end face of the turnover adjusting part (2) through two rotating shaft supports, the worm wheel (1002) and the driving gear (1003) are fixedly connected through a rotating shaft, the upper ends of rotating shafts of the worm wheel (1002) and the driving gear (1003) are rotatably connected with shaft sleeves fixed at the edges of circular through holes in the bottom end face of the turnover adjusting part (2), and the worm wheel (1002) is meshed with the worm (1001); when the turnover adjusting piece (2) is in a horizontal state, two limiting insertion rods (804) in one limiting mechanism (8) at the upper part are respectively inserted into two fixed insertion holes (201) at the front side of the turnover adjusting piece (2).
10. The device for measuring the actual contact area of the bolt-joining surface according to claim 1, wherein: the outer sleeve (11) comprises a driven gear (1101), the lower end of the outer part of the outer sleeve (11) is provided with the driven gear (1101), and the driven gear (1101) is meshed with the driving gear (1003) when the outer sleeve (11) and the auxiliary adjusting piece (10) are in an installation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011441526.5A CN112393695B (en) | 2020-12-08 | 2020-12-08 | Bolt faying face true contact area measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011441526.5A CN112393695B (en) | 2020-12-08 | 2020-12-08 | Bolt faying face true contact area measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112393695A CN112393695A (en) | 2021-02-23 |
| CN112393695B true CN112393695B (en) | 2022-05-03 |
Family
ID=74625405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011441526.5A Active CN112393695B (en) | 2020-12-08 | 2020-12-08 | Bolt faying face true contact area measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112393695B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2688058A1 (en) * | 1992-02-17 | 1993-09-03 | Sauthier Claude | Method and device for measuring extension during the so-called "hot" locking of screw-threaded elements equipped for such locking |
| EA201200366A1 (en) * | 2012-02-03 | 2013-08-30 | Республиканское Унитарное Предприятие "Научно-Практический Центр Национальной Академии Наук Беларуси По Механизации Сельского Хозяйства" | FLATTING WORKING ORGAN |
| CN106294941A (en) * | 2016-07-29 | 2017-01-04 | 东南大学 | A kind of bolted-on attachment considering pretightning force closes face stiffness simulation method |
| CN107179060A (en) * | 2017-06-14 | 2017-09-19 | 陕西科技大学 | A kind of bolt joint surface real contact area measurement apparatus and method |
| CN211387606U (en) * | 2019-05-20 | 2020-09-01 | 扬州市神力吊具制造有限公司 | Bolt stretcher capable of detecting tensile force |
-
2020
- 2020-12-08 CN CN202011441526.5A patent/CN112393695B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2688058A1 (en) * | 1992-02-17 | 1993-09-03 | Sauthier Claude | Method and device for measuring extension during the so-called "hot" locking of screw-threaded elements equipped for such locking |
| EA201200366A1 (en) * | 2012-02-03 | 2013-08-30 | Республиканское Унитарное Предприятие "Научно-Практический Центр Национальной Академии Наук Беларуси По Механизации Сельского Хозяйства" | FLATTING WORKING ORGAN |
| CN106294941A (en) * | 2016-07-29 | 2017-01-04 | 东南大学 | A kind of bolted-on attachment considering pretightning force closes face stiffness simulation method |
| CN107179060A (en) * | 2017-06-14 | 2017-09-19 | 陕西科技大学 | A kind of bolt joint surface real contact area measurement apparatus and method |
| CN211387606U (en) * | 2019-05-20 | 2020-09-01 | 扬州市神力吊具制造有限公司 | Bolt stretcher capable of detecting tensile force |
Non-Patent Citations (2)
| Title |
|---|
| Transient Thermal and Structural Analysis of Cylinder and Bolted Joints on BOG Compressor during Starting Process;Lingxiao Wei 等;《23rd International Compressor Engineering Conference》;20161231;第1-10页 * |
| 螺栓结合部接触面域的融合绑定建模方法;崔方圆 等;《中国机械工程》;20180831;第29卷(第16期);第1912-1920页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112393695A (en) | 2021-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60215330T2 (en) | STABILIZED HIGH PERFORMANCE CAMERA HEAD WITH CAMERA POSITION DETECTION | |
| CN109785715B (en) | Rotary magnetic three-dimensional geometric figure display device | |
| CN112393695B (en) | Bolt faying face true contact area measuring device | |
| CN210071229U (en) | Rotor balance detection assembly | |
| CN113155448A (en) | Gearbox test bench | |
| CN109160460B (en) | Marine crankshaft V-shaped detection and adjustment device | |
| CN107907350B (en) | Load simulator for drive axle of scooter | |
| CN214648771U (en) | High-resolution energy-saving intelligent display instrument for electric bicycle | |
| CN114354495A (en) | Road and bridge crack detection method | |
| CN212540876U (en) | Video microscope positioning mechanism for detecting circuit board | |
| CN109611662B (en) | Multi-degree-of-freedom assembly structure for L ED display screen | |
| CN215770421U (en) | Teaching show board convenient to detach and install for intellectual property training | |
| CN217541708U (en) | Dial indicator mounting base structure capable of simultaneously performing axial and radial dial indicators | |
| CN220122979U (en) | Camera module and electronic equipment | |
| CN217238306U (en) | Outer rotor type motor test fixture | |
| CN216923791U (en) | High-precision electronic turn number recording regulator | |
| CN218094988U (en) | Computer is concatenation frame for many display screens | |
| CN220040609U (en) | 5G communication antenna test frame | |
| CN220912261U (en) | Diameter detection device of wear-resistant steel ball | |
| CN219221066U (en) | Novel bearing frame that can dismantle fast | |
| CN220364294U (en) | Tower crane with security monitoring function | |
| CN214663428U (en) | Integrated multi-position computer rotating frame | |
| CN210860351U (en) | Adjusting device, hanger with same and projector | |
| CN214695318U (en) | Road gate capable of being conveniently and quickly exchanged left and right | |
| CN112936137B (en) | Steel construction prestressing force detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |