CN117074220A - Intensity testing device for large-volume concrete prefabricated part - Google Patents
Intensity testing device for large-volume concrete prefabricated part Download PDFInfo
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- CN117074220A CN117074220A CN202311340033.6A CN202311340033A CN117074220A CN 117074220 A CN117074220 A CN 117074220A CN 202311340033 A CN202311340033 A CN 202311340033A CN 117074220 A CN117074220 A CN 117074220A
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- rod
- sliding
- testing device
- strength
- ring
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 239000004567 concrete Substances 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims description 25
- 238000013016 damping Methods 0.000 claims description 14
- 238000010009 beating Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 description 6
- 238000009417 prefabrication Methods 0.000 description 5
- 239000011178 precast concrete Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0035—Spring
Abstract
The invention relates to a strength testing device, in particular to a strength testing device for a large-volume concrete prefabricated member. The strength testing device for the large-volume concrete prefabricated member is convenient to use, and can be used for testing strength of a plurality of positions of the inner wall of the prefabricated member simultaneously, is high in testing efficiency, can be used for comprehensively testing. A strength testing device for a large-volume concrete prefabricated member comprises a base, a telescopic frame and the like, wherein the telescopic frame is connected to the left side of the top of the base in an embedded sliding manner. According to the invention, the prefabricated member is placed on the base, the driving device is started to operate to drive the contact mechanism to operate, the contact mechanism is operated to drive the hexagonal rod to move inwards so that the knocking block moves inwards, the driving device is separated from contact with the contact mechanism, the contact mechanism drives the hexagonal rod to reset, and the knocking block moves outwards to test the strength of the inner wall of the prefabricated member, so that strength tests can be carried out on a plurality of positions of the inner wall of the prefabricated member, the testing efficiency is high, and the testing is convenient.
Description
Technical Field
The invention relates to a strength testing device, in particular to a strength testing device for a large-volume concrete prefabricated member.
Background
There are many kinds of precast concrete, and cement pipes are one type of precast concrete, and in order to ensure the quality of precast concrete, the strength of precast concrete needs to be tested.
At present, most all are that the people tests the intensity of prefabrication inner wall through the machine, because need the handheld machine of people to test prefabrication inner wall, because prefabrication inner wall area is great, and can only test the intensity of prefabrication inner wall one position once, lead to the inefficiency of test to in order to avoid prefabrication inner wall retest, need the people to mark the position after the test, it is more troublesome.
Therefore, it is necessary to design a strength testing device which can test strength of a plurality of positions on the inner wall of the prefabricated member simultaneously, has high testing efficiency, can perform comprehensive testing and is convenient for a large-volume concrete prefabricated member.
Disclosure of Invention
In order to overcome the defects that the strength of one position on the inner wall of the prefabricated member can be tested at one time, the testing efficiency is low, and the tested position is required to be marked by a person, and the method is troublesome, the invention provides the strength testing device which can be used for testing the strength of a plurality of positions on the inner wall of the prefabricated member at the same time, has high testing efficiency, can be used for comprehensively testing, and is convenient to use for a large-volume concrete prefabricated member.
The invention is realized by the following technical approaches:
the utility model provides a strength testing arrangement for bulky concrete prefab, including the base, the expansion bracket, the carriage, hollow cylinder and swivel, there is the expansion bracket at the left side embedded sliding connection of base top, sliding cross-under has the carriage on the expansion bracket, one side that the expansion bracket was kept away from to the carriage is along circumference rigid coupling has hollow cylinder, hollow cylinder middle part is evenly spaced apart along circumference has sixty six draw-in holes, hollow cylinder outside middle part is equipped with the swivel along circumference pivoted cover, still including the barrel, strike the piece, six arriss poles, the round bar, reset spring, distance sensor, contact mechanism and drive arrangement, the rigid coupling along circumference evenly spaced outside the swivel has six barrels, sliding cross-under has the round bar between six barrels and the swivel, round bar inner runs through the draw-in hole, round bar outer end sliding cover is equipped with six arriss poles, be connected with reset spring between six arriss pole insides and the round bar outer end, one side that the carriage kept away from the expansion bracket is equipped with the piece along circumference rigid coupling that is used for beating to the prefab inner wall, distance sensor is used for driving the piece, contact mechanism is arranged in contact with the contact mechanism with the hollow cylinder, contact mechanism is arranged on the drive arrangement, contact mechanism has the contact with the hollow cylinder.
The device is further characterized by further comprising a threaded rod, wherein the outer end of the hexagonal rod is connected with the threaded rod in a threaded rotating mode, and the outer end of the threaded rod is fixedly connected with the knocking block.
Further stated, the contact mechanism comprises a sliding bar, a rotating shaft, a rolling shaft, a backing ring and a stress application spring, the sliding bar is fixedly sleeved on the six-edge bar in a sliding mode and connected with the cylinder in a penetrating mode, two ends of the sliding bar, far away from the six-edge bar, are connected with the rotating shaft in a rotating mode, the end portion, far away from the sliding bar, of the rotating shaft is fixedly connected with the rolling shaft, the inner side of the cylinder is connected with the backing ring in a sliding mode, and the stress application spring is connected between one side, far away from the sliding frame, of the backing ring and one side, far away from the knocking block, of the sliding bar.
Further stated, the driving device comprises an electric slide rail, connecting frames and concave-convex ring plates, the electric slide rail is symmetrically arranged on the outer side of the hollow cylinder along the circumferential direction, six connecting frames are fixedly connected on the electric slide rail at uniform intervals, concave-convex ring plates for driving the rolling shafts to move inwards are fixedly connected between the inner ends of all connecting frames on each side, and the inner sides of the concave-convex ring plates are in contact with the rolling shafts.
The intermittent rotating device comprises a damping ring, connecting rods and a convex ring plate, six grooves for limiting the rolling shafts are uniformly arranged on the inner side surface of the concave-convex ring plate at intervals along the circumferential direction, the grooves are positioned in concave positions of the concave-convex ring plate, the outer side of the hollow cylinder is symmetrically sleeved with the damping ring in a circumferential direction, damping sense is arranged between the damping ring and the hollow cylinder, six connecting rods are fixedly connected on the outer side of the damping ring along the circumferential direction, a convex ring plate for driving the rotating shafts to move inwards is fixedly connected between the inner ends of all the connecting rods on each side, and the convex ring plate corresponds to the rotating shafts.
Further described, the positioning mechanism for positioning the sliding frame comprises an n-type positioning rod, a bulge and a positioning spring, wherein the two sides of the sliding frame away from the base are uniformly spaced and provided with positioning holes, one side of the telescopic frame away from the base is connected with the n-type positioning rod in a sliding mode, the two ends of the n-type positioning rod, which are oriented to the base, are fixedly connected with the bulge, the bulge is positioned in the positioning holes, and the positioning spring is connected between one side of the bulge away from the base and the inner side of the telescopic frame.
Further stated, the telescopic bracket further comprises a height adjusting bolt, wherein the position of the base close to the n-type positioning rod is connected with the height adjusting bolt for driving the telescopic bracket to move through a threaded rotary type through joint, and the end part of the height adjusting bolt, which faces the n-type positioning rod, is rotationally connected with the middle of the bottom of the telescopic bracket.
Further, the device also comprises rolling balls, and the rolling balls are connected to the top of the base at uniform intervals in a rotating mode.
Further stated, the device also comprises a force adjusting bolt, wherein one side of the cylinder body, which is close to the backing ring, is connected with two force adjusting bolts through threads in a rotating mode, and the end part of the force adjusting bolt, which is far away from the sliding frame, is connected with one side of the backing ring, which is far away from the knocking block, in a rotating mode.
The invention has the remarkable advantages that:
1. the prefabricated member is placed on the base, the driving device is started to operate to drive the contact mechanism to operate, the contact mechanism operates to drive the six-edge rod to move inwards to enable the knocking block to move inwards, the driving device operates to be separated from contact with the contact mechanism, the contact mechanism drives the six-edge rod to reset, the knocking block moves outwards to test the strength of the inner wall of the prefabricated member, and therefore strength tests can be conducted on a plurality of positions of the inner wall of the prefabricated member, the testing efficiency is high, and the device is convenient to use.
2. Under the action of the intermittent rotating device, when the knocking block tests the strength of the inner wall of the prefabricated member once, the intermittent rotating device can enable the knocking block to positively rotate to knock the next position of the inner wall of the prefabricated member, so that a user does not need to manually pull the cylinder to drive the knocking block to positively rotate to knock the other position of the inner wall of the prefabricated member, and convenience and quickness are achieved.
3. Under the effect of positioning mechanism, can fix a position the carriage, just so make the piece of beating by the location, so, can avoid the carriage to appear moving the phenomenon and influence the test of beating the piece to prefab inner wall intensity.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of a first partially cut-away structure of the present invention.
Fig. 3 is a schematic perspective view of a first part of the present invention.
Fig. 4 is a schematic perspective view of a second part of the present invention.
Fig. 5 is a schematic perspective view of a card hole according to the present invention.
Fig. 6 is a schematic perspective view of the contact mechanism of the present invention.
Fig. 7 is a schematic view of a second partially cut-away structure of the present invention.
Fig. 8 is a schematic cross-sectional view of the cartridge of the present invention.
Fig. 9 is a schematic view of a third partial cross-sectional structure of the present invention.
Fig. 10 is a schematic view showing a first perspective structure of the intermittent rotation device of the present invention.
Fig. 11 is a schematic view showing a second perspective structure of the intermittent rotation device of the present invention.
Fig. 12 is a schematic view showing a third perspective structure of the intermittent rotation device of the present invention.
Fig. 13 is a schematic view showing a partial perspective structure of the intermittent rotating device of the present invention.
Fig. 14 is a schematic view of a fourth partially cut-away configuration of the present invention.
Fig. 15 is a schematic perspective view of a positioning mechanism according to the present invention.
Fig. 16 is a schematic perspective view of a force adjusting bolt of the present invention.
In the reference numerals: 1_base, 2_telescoping, 3_telescoping, 4_hollow cylinder, 5_swivel, 6_barrel, 61_strike block, 62_hexagonal rod, 63_round rod, 631_snap, 64_return spring, 65_distance sensor, 6 a_threaded rod, 7_contact mechanism, 71_strip, 72_spindle, 721_roller, 73_backing ring, 74_force spring, 8_drive, 81_motorized slide, 82_link, 83_concave-convex ring plate, 9_intermittent rotation device, 91_groove, 92_damping ring, 93_link, 94_convex ring plate, 10_positioning mechanism, 101_n type positioning rod, 102_convex, 103_positioning spring, 104_positioning hole, 11_height adjustment bolt, 12_rolling ball, 13_force adjustment bolt.
Detailed Description
It should be noted that in the various embodiments described, identical components are provided with identical reference numerals or identical component names, wherein the disclosure contained throughout the description can be transferred in a meaning to identical components having identical reference numerals or identical component names. The position specification, upper, lower, lateral, etc. selected in the description are also referred to directly in the description and the figures shown and are transferred in the sense of a new position when the position is changed.
Example 1
A strength testing device for a large-volume concrete prefabricated member comprises a base 1, a telescopic frame 2, a sliding frame 3, a hollow cylinder 4, a swivel 5, a cylinder body 6, a knocking block 61, a hexagonal rod 62, a round rod 63, a return spring 64, a distance sensor 65, a threaded rod 6a, a contact mechanism 7 and a driving device 8, wherein the left side of the top of the base 1 is connected with the telescopic frame 2 in an embedded sliding manner, the upper part of the telescopic frame 2 is connected with the sliding frame 3 in a sliding manner in a penetrating manner, the right side of the sliding frame 3 is provided with the hollow cylinder 4 in a circumferential manner through bolts, sixty six clamping holes 631 are uniformly spaced in the middle part of the hollow cylinder 4 in the circumferential direction, the swivel 5 is sleeved at the middle part of the outer side of the hollow cylinder 4 in the circumferential direction, six cylinder bodies 6 are fixedly connected at uniform intervals in the circumferential direction, the round rod 63 is connected between the six cylinder bodies 6 and the swivel 5 in a sliding manner, the inner ends of the six round rods 63 penetrate through the clamping holes 631, the outer ends of the six round rods 63 are sleeved with six prismatic rods 62 in a sliding mode, a return spring 64 is connected between the inner sides of the six prismatic rods 62 and the outer ends of the six round rods 63 respectively, the outer ends of the six prismatic rods 62 are connected with threaded rods 6a in a threaded rotation mode, the outer ends of the six threaded rods 6a are fixedly connected with knocking blocks 61, when the knocking blocks 61 move outwards, the knocking blocks 61 can knock the inner wall of a prefabricated member, the right side of the sliding frame 3 is fixedly connected with a distance sensor 65 in the circumferential direction, the distance sensor 65 corresponds to the six round rods 63, a contact mechanism 7 is arranged between the cylinder 6 and the six prismatic rods 62, when the contact mechanism 7 works, the contact mechanism 7 can drive the six prismatic rods 62 to move, the outer sides of the hollow cylinder 4 are provided with driving devices 8, the driving devices 8 are contacted with the contact mechanism 7, when the driving devices 8 work, the driving device 8 can drive the contact mechanism 7 to operate.
The contact mechanism 7 includes a sliding bar 71, a rotating shaft 72, a roller 721, backing rings 73 and a force-applying spring 74, as shown in fig. 3, 6 and 9, the six cylinders 6 are all connected with the sliding bar 71 in a sliding manner, the sliding bar 71 is fixedly sleeved on the six-edge rod 62, when the sliding bar 71 moves, the sliding bar 71 can drive the six-edge rod 62 to move, the left end and the right end of the six sliding bars 71 are both rotationally connected with the rotating shaft 72, the outer ends of the rotating shafts 72 on the left side and the right side are both fixedly connected with the roller 721, the inner sides of the six cylinders 6 are both connected with the backing rings 73 in a sliding manner, and the force-applying springs 74 are respectively connected between the outer side surfaces of the six backing rings 73 and the inner side surfaces of the six sliding bars 71.
The driving device 8 includes an electric sliding rail 81, a connecting frame 82 and an uneven ring plate 83, as shown in fig. 1 and 3, the outer side of the hollow cylinder 4 is symmetrically provided with the electric sliding rail 81 along the circumferential direction, six connecting frames 82 are fixedly connected on the electric sliding rail 81 on the left side and the right side at uniform intervals, the uneven ring plate 83 is installed between the inner ends of the six connecting frames 82 on the left side in a welding connection manner, the uneven ring plate 83 is also installed between the inner ends of the six connecting frames 82 on the right side in a welding connection manner, the inner side surfaces of the uneven ring plate 83 on the left side and the right side are respectively contacted with the rolling shafts 721 on the left side and the right side, and when the uneven ring plate 83 rotates forward, the uneven ring plate 83 can drive the rolling shafts 721 to move inwards.
Firstly, the knocking block 61 can be twisted to rotate positively and negatively according to the size of the prefabricated part, the knocking block 61 rotates positively and negatively alternately to drive the six threaded rods 6a to rotate positively and negatively, the six threaded rods 6a rotate positively and negatively alternately to move inwards and outwards through threads, the six threaded rods 6a move inwards and outwards to drive the knocking block 61 to move inwards and outwards, when the knocking block 61 moves to a proper position inwards and outwards, the twisting of the knocking block 61 is stopped, the prefabricated part is placed on the base 1 from the right side, the prefabricated part is a cement pipe, the driving device 8 is started again, the driving device 8 operates to drive the contact mechanism 7 to operate, the contact mechanism 7 operates to drive the six hexagonal rods 62 to move inwards, the six hexagonal rods 62 move inwards to drive the six round rods 63 to move inwards through the reset springs 64, meanwhile, the six hexagonal rods 62 also drive the knocking block 61 to move inwards through the threaded rods 6a, and when the contact mechanism 7 continues to operate without limiting the six hexagonal rods 62, the contact mechanism 7 operates to reset and drive the six hexagonal rods 62 to move outwards for reset, the six hexagonal rods 62 move outwards to drive the round rods 63 to move outwards for reset through the reset springs 64, the six hexagonal rods 62 reset and drive the six knocking blocks 61 to move outwards through the threaded rods 6a, the six knocking blocks 61 move outwards to knock the inner wall of the prefabricated member, the strength of the prefabricated member is tested, as the inner wall of the prefabricated member has strength, the knocking blocks 61 can rebound inwards when knocking the inner wall of the prefabricated member, the knocking blocks 61 rebound inwards to drive the hexagonal rods 62 to move inwards through the threaded rods 6a, the round rods 63 move inwards, the distance sensor 65 tests the rebound distance of the round rods 63, so the strength of the inner wall of the prefabricated member can be tested continuously, when other positions of the inner wall of the prefabricated member are required to be tested, the pulling barrel 6 rotates, barrel 6 rotates to drive and beats piece 61 and rotate the intensity of other positions of prefabricate member inner wall and test, simultaneously, after the intensity test of every round position of prefabricate member inner wall is accomplished, pulling carriage 3 left-hand movement, carriage 3 left-hand movement drives hollow drum 4 left-hand movement, hollow drum 4 left-hand movement drives swivel 5 left-hand movement, swivel 5 left-hand movement drives barrel 6 left-hand movement, barrel 6 drives and beats piece 61 left-hand movement to the next position, stop pulling carriage 3, so, can comprehensive test prefabricate member inner wall intensity, after prefab member inner wall intensity test is accomplished, close drive arrangement 8, take off the prefab from base 1, look over again the data of test, if circle pole 63 rebound is closer to distance sensor 65 after, then indicate that prefab member inner wall intensity is qualified, otherwise disqualification.
Initially, the force spring 74 is in a compressed state, when the driving device 8 is started, the driving device 8 drives the roller 721 to move inwards, the roller 721 moves inwards to drive the rotating shaft 72 to move inwards, the rotating shaft 72 moves inwards to drive the sliding bar 71 to move inwards, the force spring 74 is further compressed, the sliding bar 71 moves inwards to drive the hexagonal bar 62 to move inwards, so that the knocking block 61 moves inwards, when the driving device 8 continues to operate without limiting the roller 721, the sliding bar 71 moves outwards to reset the roller 721 through the action of the force spring 74, meanwhile, the sliding bar 71 also drives the hexagonal bar 62 to move outwards, the hexagonal bar 62 moves outwards to drive the knocking block 61 to move outwards through the threaded rod 6a, the knocking block 61 moves outwards to knock the inner wall of the prefabricated member, and the strength of the inner wall of the prefabricated member is tested through the knocking block 61.
When the prefabricated member is placed, the left and right electric sliding rails 81 are started, the left and right electric sliding rails 81 rotate forward to drive the left and right concave-convex ring plates 83 to rotate forward through the connecting frame 82, the convex parts are contacted with the rolling shafts 721 through the positive rotation of the left and right concave-convex ring plates 83, the rolling shafts 721 are driven to move inwards by the left and right concave-convex ring plates 83, the knocking block 61 moves inwards, when the convex parts are separated from the rolling shafts 721 through the continuous positive rotation of the left and right concave-convex ring plates 83, the sliding bar 71 drives the six-edge rod 62 to move outwards to reset under the action of the force spring 74, the knocking block 61 also moves outwards to reset to knock the inner wall of the prefabricated member, and the strength of the inner wall of the prefabricated member is tested, so that the inner and outer movement of the knocking block 61 can be continuously knocked on the inner wall of the prefabricated member. After the strength test of the inner wall of the prefabricated member is completed, the left and right electric sliding rails 81 are closed, the left and right electric sliding rails 81 stop driving the concave-convex annular plate 83 to rotate forward through the connecting frame 82, the concave-convex annular plate 83 stops driving the rolling shafts 721 to move inwards, and the knocking block 61 stops moving.
Example 2
On the basis of embodiment 1, the intermittent rotating device 9 is further included, the intermittent rotating device 9 includes a damping ring 92, a connecting rod 93 and a raised ring plate 94, as shown in fig. 1, 10, 11, 12, 13 and 14, six grooves 91 are uniformly spaced on the inner side surface of the raised ring plate 83 along the circumferential direction, when the roller 721 moves into the groove 91, the groove 91 can limit the roller 721, the groove 91 is positioned at the concave position of the raised ring plate 83, the damping ring 92 is sleeved on the outer side of the hollow cylinder 4 along the circumferential direction in a rotationally symmetrical manner, a damping sense is provided between the damping ring 92 and the hollow cylinder 4, six connecting rods 93 are installed on the outer sides of the damping ring 92 on the left and right sides in a manner of welding connection along the circumferential direction, raised ring plates 94 are fixedly connected between the inner ends of the six connecting rods 93 on the left side, the raised ring plates 94 correspond to the rotating shaft 72, and when the rotating shaft 72 rotates and contacts with the raised ring plates 94, the raised ring plates 94 can drive the rotating shaft 72 to move inwards.
The positioning mechanism 10 comprises an n-type positioning rod 101, a convex circle 102 and a positioning spring 103, as shown in fig. 1 and 15, positioning holes 104 are uniformly formed in the front side and the rear side of the top of the sliding frame 3 at intervals, the top of the telescopic frame 2 is connected with the n-type positioning rod 101 in a sliding mode, the two ends of the bottom of the n-type positioning rod 101 are fixedly connected with the convex circle 102, the convex circle 102 is positioned in the positioning holes 104, and the positioning springs 103 are connected between the tops of the convex circles 102 on the front side and the rear side and the inner side of the telescopic frame 2.
When the electric slide rail 81 is started, the concave-convex ring plate 83 rotates forward to drive the groove 91 to rotate forward, and then the concave-convex ring plate 83 rotates forward to drive the roller 721 to move inward, the concave-convex ring plate 83 continues to rotate forward without limiting the roller 721, the roller 721 moves outward to contact with the inner wall of the concave-convex ring plate 83, the concave-convex ring plate 83 continues to rotate forward to drive the groove 91 to rotate forward, when the groove 91 rotates forward to correspond to the roller 721, the roller 721 continues to move outward to be inserted into the groove 91 due to the action of the force spring 74, the groove 91 limits the roller 721, meanwhile, the roller 721 drives the rotating shaft 72 to move outward to contact with the inner wall of the convex ring plate 94, the round rod 63 moves outward to be out of contact with the clamping hole 631, the groove 91 rotates forward to drive the roller 721 to rotate forward, the roller 721 rotates forward to drive the sliding strip 71 to rotate forward through the rotating shaft 72, the sliding strip 71 rotates forward to drive the six-edge rod 62 to rotate forward, the six-edge rod 62 rotates forward to drive the knocking block 61 to rotate forward through the threaded rod 6a, when the rotating shaft 72 rotates forward to contact with the convex part of the convex annular plate 94, the convex annular plate 94 drives the rotating shaft 72 to move inwards, the rotating shaft 72 moves inwards to drive the hexagonal rod 62 to move inwards through the sliding strip 71, the hexagonal rod 62 moves inwards to compress the return spring 64 because the round rod 63 does not correspond to the clamping hole 631, when the round rod 63 continues to rotate forward to correspond to the clamping hole 631, the round rod 63 moves inwards to pass through the clamping hole 631 due to the action of the return spring 64, the rotating shaft 72 moves inwards to drive the rolling shaft 721 to move inwards to be out of contact with the groove 91, the groove 91 does not drive the rolling shaft 721 to rotate forward continuously, the rolling shaft 721 stops driving the sliding strip 71 to rotate forward through the rotating shaft 72, the knocking block 61 stops rotating forward, at the moment, the knocking block 61 corresponds to the non-testing position of the inner wall of the prefabricated member, the concave-convex annular plate 83 continues rotating forward to drive the rolling shaft 721 to move inwards, the knocking block 61 is enabled to continuously test the strength of the inner wall of the prefabricated member, and the strength test is repeated, and after the knocking block 61 knocks one position of the inner wall of the prefabricated member, the knocking block 61 knocks the other position of the inner wall of the prefabricated member to finish the strength test. When the electric slide rail 81 is closed, the concave-convex ring plate 83 stops driving the groove 91 to rotate forward. Thus, the knocking block 61 is driven to positively rotate to knock the other position of the inner wall of the prefabricated member without pulling the cylinder 6 by hands, and the method is convenient and quick.
When the strength test is required to be performed on another position of the inner wall of the prefabricated member, the n-type positioning rod 101 is pulled to move upwards, the n-type positioning rod 101 moves upwards to drive the front and rear convex circles 102 to move upwards, the front and rear convex circles 103 are compressed, the front and rear convex circles 102 move upwards to be separated from the positioning holes 104, the sliding frame 3 is pulled to move leftwards to drive the positioning holes 104 to move leftwards, the knocking block 61 is enabled to move leftwards, when the next positioning hole 104 moves leftwards to correspond to the convex circles 102, the sliding frame 3 is stopped to move leftwards, the n-type positioning rod 101 is loosened, the front and rear convex circles 102 move downwards to be inserted into the positioning holes 104 due to the action of the front and rear convex circles 103, and the front and rear convex circles 102 move downwards to drive the n-type positioning rod 101 to move downwards to reset. In this way, the phenomenon of movement of the carriage 3 is avoided from affecting the strength of the inner wall of the preform by the striking block 61.
Example 3
On the basis of embodiment 1 and embodiment 2, the telescopic bracket further comprises a height adjusting bolt 11, as shown in fig. 15, the middle of the left part of the base 1 is connected with the height adjusting bolt 11 through threads in a rotating mode, the top end of the height adjusting bolt 11 is connected with the middle of the bottom of the telescopic bracket 2 in a rotating mode, and when the height adjusting bolt 11 moves, the height adjusting bolt 11 can drive the telescopic bracket 2 to move.
Also comprises rolling balls 12, as shown in fig. 15, the rolling balls 12 are connected to the top of the base 1 at regular intervals.
The device further comprises a force adjusting bolt 13, as shown in fig. 16, two force adjusting bolts 13 are rotatably connected to one side of the six cylinders 6, which is close to the backing ring 73, through threads, and the outer ends of the force adjusting bolts 13 are rotatably connected with the inner side surface of the backing ring 73.
Firstly, the height adjusting bolt 11 is twisted to rotate positively and negatively alternately, the height adjusting bolt 11 rotates positively and negatively alternately and moves up and down through threads, the height adjusting bolt 11 moves up and down to drive the telescopic frame 2 to move up and down, the telescopic frame 2 moves up and down to drive the sliding frame 3 to move up and down, the sliding frame 3 moves up and down to drive the cylinder 6 to move up and down through the swivel 5, the knocking block 61 moves up and down, when the knocking block 61 moves up and down to a position suitable for knocking the inner wall of the prefabricated member, the twisting of the height adjusting bolt 11 is stopped, the telescopic frame 2 stops moving up and down, the knocking block 61 stops moving up and down, and then the twisting of the knocking block 61 moves inside and outside alternately through the threaded rod 6a to be adjusted to a proper position. In this way, the position of the striking block 61 is more conveniently adjusted.
When the prefabricated member is placed on the base 1 from the right side, the prefabricated member is in contact with the rolling ball 12, the prefabricated member drives the rolling ball 12 to rotate, and the rolling ball 12 guides the prefabricated member. In this way, the preforms can be placed on the base 1 more smoothly.
When the knocking force of the knocking block 61 needs to be adjusted, the twisting force adjusting bolt 13 rotates positively and negatively alternately, the force adjusting bolt 13 rotates positively and negatively alternately and moves inside and outside through threads, the force adjusting bolt 13 moves inside and outside to drive the backing ring 73 to move inside and outside, the backing ring 73 moves inside and outside to adjust the elasticity of the stressing spring 74, and accordingly the knocking force of the knocking block 61 is adjusted. Thus, the knocking force of the knocking block 61 can be adjusted as required.
Finally, it is necessary to state that: the foregoing is provided to assist in understanding the technical solutions of the present invention, and is not to be construed as limiting the scope of protection of the present invention; insubstantial modifications and variations from the above teachings are within the scope of the invention as claimed.
Claims (9)
1. The utility model provides a strength testing device for bulky concrete prefab, including base (1), expansion bracket (2), carriage (3), hollow cylinder (4) and swivel (5), the embedded sliding connection in base (1) top left side has expansion bracket (2), sliding cross-under has carriage (3) on expansion bracket (2), one side that expansion bracket (2) was kept away from to carriage (3) has hollow cylinder (4) along circumference rigid coupling, hollow cylinder (4) middle part is evenly spaced apart along circumference has sixty six draw-in holes (631), the cover that hollow cylinder (4) outside middle part is equipped with swivel (5) along circumference pivoted, the rotary ring is characterized by further comprising a cylinder body (6), a knocking block (61), a hexagonal rod (62), a round rod (63), a reset spring (64), a distance sensor (65), a contact mechanism (7) and a driving device (8), wherein six cylinder bodies (6) are fixedly connected to the outer side of the rotary ring (5) at uniform intervals along the circumferential direction, the round rod (63) is slidably connected between the six cylinder bodies (6) and the rotary ring (5) in a penetrating way, the inner end of the round rod (63) penetrates through a clamping hole (631), the outer end of the round rod (63) is slidably sleeved with the hexagonal rod (62), the reset spring (64) is connected between the inner side of the hexagonal rod (62) and the outer end of the round rod (63), the outer end swing joint of six arriss pole (62) has and is used for beating the piece of beating (61) of prefab inner wall, and one side that expansion bracket (2) was kept away from to carriage (3) is followed circumference rigid coupling and is had distance sensor (65), and distance sensor (65) correspond with round bar (63), are provided with on barrel (6) and are used for driving contact mechanism (7) that six arriss pole (62) removed, and hollow drum (4) outside is provided with drive arrangement (8) that are used for driving contact mechanism (7) function, and drive arrangement (8) and contact mechanism (7) contact.
2. The strength testing device for the large-volume concrete prefabricated part according to claim 1, further comprising a threaded rod (6 a), wherein the outer end of the hexagonal rod (62) is connected with the threaded rod (6 a) in a threaded rotary mode, and the outer end of the threaded rod (6 a) is fixedly connected with the knocking block (61).
3. The strength testing device for the large-volume concrete prefabricated part according to claim 2, wherein the contact mechanism (7) comprises a sliding strip (71), a rotating shaft (72), a roller (721), a backing ring (73) and a force spring (74), the sliding strip (71) used for driving the hexagonal rod (62) to move is connected to the cylinder (6) in a sliding penetrating mode, the sliding strip (71) is fixedly sleeved on the hexagonal rod (62), the rotating shaft (72) is connected to two ends of the sliding strip (71) away from the hexagonal rod (62) in a rotating mode, the roller (721) is fixedly connected to the end portion of the rotating shaft (72) away from the sliding strip (71), the backing ring (73) is connected to the inner side of the cylinder (6) in a sliding mode, and the force spring (74) is connected between one side of the backing ring (73) away from the sliding frame (3) and one side of the sliding strip (71) away from the knocking block (61).
4. A strength testing device for a large-volume concrete prefabricated member according to claim 3, wherein the driving device (8) comprises an electric sliding rail (81), connecting frames (82) and concave-convex ring plates (83), the electric sliding rail (81) is symmetrically arranged on the outer side of the hollow cylinder (4) along the circumferential direction, six connecting frames (82) are fixedly connected on the electric sliding rail (81) at uniform intervals, concave-convex ring plates (83) for driving the roller shafts (721) to move inwards are fixedly connected between the inner ends of all the connecting frames (82) on each side, and the inner sides of the concave-convex ring plates (83) are in contact with the roller shafts (721).
5. The strength testing device for the large-volume concrete prefabricated part according to claim 4, further comprising an intermittent rotating device (9) for enabling the knocking block (61) to rotate positively, wherein the intermittent rotating device (9) comprises a damping ring (92), connecting rods (93) and raised ring plates (94), six grooves (91) for limiting a roller (721) are uniformly formed in the inner side face of each raised ring plate (83) at intervals along the circumferential direction, the grooves (91) are located in concave positions of the raised ring plates (83), the damping ring (92) is sleeved on the outer side of the hollow cylinder (4) in a rotationally symmetrical mode, six connecting rods (93) are fixedly connected between the damping ring (92) and the hollow cylinder (4) along the circumferential direction, raised ring plates (94) for driving the rotating shaft (72) to move inwards are fixedly connected between the inner ends of all the connecting rods (93) on each side, and the raised ring plates (94) correspond to the rotating shaft (72).
6. The strength testing device for the large-volume concrete prefabricated part according to claim 5, further comprising a positioning mechanism (10) for positioning the sliding frame (3), wherein the positioning mechanism (10) comprises an n-type positioning rod (101), a convex circle (102) and positioning springs (103), positioning holes (104) are uniformly formed in two sides, far away from the base (1), of the sliding frame (3), the n-type positioning rod (101) is connected to one side, far away from the base (1), of the sliding frame (2), the convex circle (102) is fixedly connected to two ends, facing the base (1), of the n-type positioning rod (101), the convex circle (102) is located in the positioning holes (104), and the positioning springs (103) are connected between one side, far away from the base (1), of the convex circle (102) and the inner side, far away from the sliding frame (2).
7. The strength testing device for a large-volume concrete prefabricated member according to claim 6, further comprising a height adjusting bolt (11), wherein the position of the base (1) close to the n-type positioning rod (101) is connected with the height adjusting bolt (11) for driving the telescopic frame (2) to move through threaded rotation in a penetrating manner, and the end part of the height adjusting bolt (11) facing the n-type positioning rod (104) is connected with the middle of the bottom of the telescopic frame (2) in a rotating manner.
8. The strength testing device for a bulk concrete precast element according to claim 7, further comprising rolling balls (12), wherein the rolling balls (12) are rotatably connected to the top of the base (1) at uniform intervals.
9. The strength testing device for the large-volume concrete prefabricated part according to claim 8, further comprising a strength adjusting bolt (13), wherein two strength adjusting bolts (13) are connected to one side of the cylinder (6) close to the backing ring (73) in a threaded rotary mode, and the end portion, far away from the sliding frame (3), of the strength adjusting bolt (13) is rotatably connected with one side, far away from the knocking block (61), of the backing ring (73).
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| CN202311340033.6A CN117074220B (en) | 2023-10-17 | 2023-10-17 | Intensity testing device for large-volume concrete prefabricated part |
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