CN204536112U - A kind of cylindrical specimens wedge interfere fixture - Google Patents
A kind of cylindrical specimens wedge interfere fixture Download PDFInfo
- Publication number
- CN204536112U CN204536112U CN201520280518.5U CN201520280518U CN204536112U CN 204536112 U CN204536112 U CN 204536112U CN 201520280518 U CN201520280518 U CN 201520280518U CN 204536112 U CN204536112 U CN 204536112U
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- pressure head
- steel pressure
- column
- lower shoe
- steel
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Abstract
The utility model discloses a kind of cylindrical specimens wedge interfere fixture, comprise steel pressure head guiding device and specimen holder device, described steel pressure head guiding device comprises top board, steel pressure head, column, spring device, baffle plate and lower shoe, described steel pressure head is fixed at the lower surface of top board, described column is fixed at the left and right sides of lower shoe upper surface, two described column sides respect to one another and the left and right sides of steel pressure head are provided with the gathering sill and feather key that match each other, described top board is positioned at above column, the two ends of top board are connected with two column elasticity by spring device, described baffle plate is fixed at the rear of lower shoe, the upper surface of baffle plate is higher than the upper surface of lower shoe, described specimen holder device, between steel pressure head and lower shoe, can freely take out.The utility model is simple to operate, and test specimen centering is good, ensure that splitting pressure-bearing surface is vertical with end face during specimen molding with splitting surface, simplifies test operation operation, improve efficiency.
Description
Technical field
The utility model relates to a kind of mould detecting compressive strength, is specifically related to a kind of cylindrical specimens wedge interfere fixture.
Background technology
Concrete splitting tensile strength is a routine inspection project of common concrete material Mechanics Performance Testing.Describe in the rich filler adhesive colloid of GB50728-2011 " Reinforcement of Engineering Structure material safety authenticate technology specification " annex E and polymer-modified cement mortar body tensile splitting strength assay method, it is 20mm that this experiment needs diameter, length be the shaping sample of 40mm carry out vertical crouch to splitting, existing cylindrical specimens wedge interfere fixture as depicted in figs. 1 and 2, by steel pressure head 12 ', with the steel base 21 ' of little pressure head 211 ', the compositions such as baffle plate 14 ' and steel seat locating rack 13 ', during test, cylindrical specimens 3 ' is placed between the locating rack 13 ' of fixture and plate washer 14 ', steel pressure head 12 ' below and steel base 21 ' top position, at test specimen 3 ' and arrange each one piece of filler strip between steel pressure head 12 ' and the little pressure head 211 ' of steel base 21 ' respectively during test, then steel pressure head 12 ' is exerted pressure.In prior art, in order to ensure experiment effect, before the test begins, first need to draw center line in the upper and lower surface of described test specimen, end face when this center line and specimen molding is vertical, to determine to arrange described filler strip and the contact position of surface of test piece, ensure that splitting surface is vertical with end face during specimen molding.In addition, the locating rack of the cylindrical specimens wedge interfere fixture of prior art easily lost efficacy to the guide effect loading polishing head, loaded pressure head and easily occurred offset from perpendicular and damage fixture; Inconvenience installed by test specimen, test specimen is installed and is required strict to the vertical centering of steel base, test specimen, steel pressure head, not easily realize, require that test specimen has absolute circularity simultaneously, the top board of pressing machine and lower platen have absolute levelness, need the plane of carrying out axis to test specimen to carry out line confirmation work before installation not easily to complete, test efficiency is low, and experimental result error is large.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of cylindrical specimens wedge interfere fixture, test specimen centering is good, ensure that splitting pressure-bearing surface is vertical with end face during specimen molding with splitting surface, simplify test operation operation, test error is little, ensure that test mass, improves efficiency.
In order to reach above-mentioned technique effect, the technical solution adopted in the utility model is:
A kind of cylindrical specimens wedge interfere fixture, comprise steel pressure head guiding device and specimen holder device, described steel pressure head guiding device comprises top board, steel pressure head, column, spring device, baffle plate and lower shoe, described steel pressure head is fixed at the lower surface of top board, described column is provided with two, be fixed at the left and right sides of lower shoe upper surface respectively, two described column sides respect to one another and the left and right sides of steel pressure head are provided with the gathering sill and feather key that match each other, described gathering sill and feather key are perpendicular to the upper surface of lower shoe, two feather keys of described steel pressure head lay respectively in two gathering sills, described top board is positioned at above column, the two ends of top board are connected with two column elasticity by spring device, described baffle plate is fixed at the rear of lower shoe, the front of baffle plate and the rear surface of lower shoe fit tightly, the upper surface of baffle plate is higher than the upper surface of lower shoe, described specimen holder device is between steel pressure head and lower shoe, can freely take out, described specimen holder device comprises steel base, spacing adjusting screw(rod), guide pole, spring device, movable block and grip block, the upper surface center of described steel base is provided with the little pressure head of strip from left to right, described movable block and grip block are equipped with two, and be symmetricly set on the side, front and back of little pressure head, each described movable block is connected by spring device elasticity with the grip block of homonymy, described grip block is positioned at the inner side of two movable blocks, the side that two grip blocks are relative is parallel to each other, and perpendicular to the upper surface of steel base, described movable block is L-type structure, the lower surface of upper end contacts with the upper surface of steel base, the lower end of two movable blocks lays respectively at the side, front and back of steel base, the lower end of two movable blocks is connected by spacing adjusting screw(rod), described spacing adjusting screw(rod) is that two reverse screw rod are coaxially formed by fixedly connecting, the lower surface of described movable block is higher than the upper surface of baffle plate, described baffle plate is equal to the distance at little pressure head center with the trailing flank of steel base to the distance at steel pressure head center with the binding face of lower shoe, described guide pole is positioned at the lower end of movable block, described steel base is provided with the pilot hole corresponding with guide pole, one end of guide pole is fixedly connected with movable plate, the other end is positioned at pilot hole.
Further, described spring device is spring and nut, the upper and lower side of described column is equipped with cylinder shape groove, limit rib is provided with between two described grooves, axis is located along the same line, the lower end of described spring is positioned at the groove of top, and nut is fixedly connected with top board with the center of spring through limit rib in the groove of below.
Further, described gathering sill and feather key are string configuration, and gathering sill is positioned at two column sides respect to one another, and feather key is positioned at the steel pressure head left and right sides.
Further, the height of described feather key is identical with the height of steel pressure head.
Further, described spacing adjusting screw(rod) is that two reverse screw rod are coaxially formed by fixedly connecting, and the two ends of described spacing adjusting screw(rod) all exceed the lateral surface of two movable block lower ends, and the front end of spacing adjusting screw(rod) is fixed with fastening bolt and setting nut.
Further, described guide pole is positioned at the below of spacing adjusting screw(rod), and each movable block is arranged with two.
Further, the side of described steel base is provided with air hole, and described air hole is connected with pilot hole.Compared with prior art, the beneficial effects of the utility model are: be fixed on top board by steel pressure head, top board is connected by spring device elasticity with column, column and steel pressure head are provided with the gathering sill and feather key that match each other, make steel pressure head in whole service track, all can keep plumbness and can not depart from, long service life; Because two movable blocks are connected by spacing adjusting screw(rod), adjusted the spacing of two grip blocks by spacing adjusting screw(rod), keep the centering of test specimen; Grip block is connected with movable block elasticity, grip block is avoided to contact with the hard of test specimen the restriction caused test specimen splitting, baffle plate is equal to the distance at little pressure head center with the trailing flank of steel base to the distance at steel pressure head center with the binding face of lower shoe, ensure that splitting pressure-bearing surface is vertical with end face during specimen molding with splitting surface, simplify the operation of setting-out, reduce test error, ensure that test mass, improve efficiency.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail.
Accompanying drawing explanation
Fig. 1 is the cylindrical specimens wedge interfere clamp structure schematic diagram of prior art.
Fig. 2 is the side structure schematic diagram of the cylindrical specimens wedge interfere fixture of prior art.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is steel pressure head guiding device vertical view of the present utility model.
Fig. 5 is steel pressure head guiding device left view of the present utility model.
Fig. 6 is that the A-A of Fig. 4 is to cross-sectional view.
Fig. 7 is specimen holder device vertical view of the present utility model.
Fig. 8 is that the B-B of Fig. 7 is to cross-sectional view.
Fig. 9 is that the C-C of Fig. 7 is to cross-sectional view.
In figure, each label and corresponding name are called:
12 '. steel pressure head, 13 '. locating rack, 14 '. baffle plate, 21 '. steel base, 211 '. little pressure head, 1. steel pressure head guiding device, 11. top boards, 12. steel pressure heads, 121. feather keys, 13. columns, 131. gathering sills, 14. baffle plates, 15. lower shoes, 16. spring devices, 2. specimen holder device, 21. steel bases, 211 little pressure heads, 212. pilot holes, 213. air holes, 22. movable blocks, 221. guide poles, 23. grip blocks, 24 spring devices, 25. spacing adjusting screw(rod)s, 251. setting nuts, 252. fastening bolts, 3. test specimen.
Embodiment
As illustrated in figures 3-6, a kind of cylindrical specimens wedge interfere fixture, comprise steel pressure head guiding device 1 and specimen holder device 2, described steel pressure head guiding device 1 comprises top board 11, steel pressure head 12, column 13, spring device 16, baffle plate 14 and lower shoe 15, described steel pressure head 12 is fixed at the lower surface of top board 11, described column 13 is provided with two, be fixed at the left and right sides of lower shoe 15 upper surface respectively, two described column 13 sides respect to one another and the left and right sides of steel pressure head 12 are provided with the gathering sill 131 and feather key 121 that match each other, described gathering sill 131 and feather key 121 are perpendicular to the upper surface of lower shoe 15, two feather keys 121 of described steel pressure head 12 lay respectively in two gathering sills 131, described top board 11 is positioned at above column 13, the two ends of top board 11 are connected with two column 13 elasticity by spring device 16, described baffle plate 14 is fixed at the rear of lower shoe 15, the front of baffle plate 14 and the rear surface of lower shoe 15 fit tightly, the upper surface of baffle plate 14 is higher than the upper surface of lower shoe 15.
As Fig. 3, shown in Fig. 7 ~ 9, described specimen holder device 2 is between steel pressure head 12 and lower shoe 15, can freely take out, described specimen holder device 2 comprises steel base 21, spacing adjusting screw(rod) 25, guide pole 221, spring device 24, movable block 22 and grip block 23, the upper surface center of described steel base 21 is provided with the little pressure head 211 of strip from left to right, described movable block 22 and grip block 23 are equipped with two, and be symmetricly set on the side, front and back of little pressure head 211, each described movable block 22 is connected by spring device 24 elasticity with the grip block 23 of homonymy, described grip block 23 is positioned at the inner side of two movable blocks 22, the side that two grip blocks 23 are relative is parallel to each other, and perpendicular to the upper surface of steel base 21, described movable block 22 is L-type structure, the lower surface of the upper end of movable block 22 contacts with the upper surface of steel base 21, the lower end of two movable blocks 22 lays respectively at the side, front and back of steel base 21, the lower end of two movable blocks 22 is connected by spacing adjusting screw(rod) 25, described spacing adjusting screw(rod) 25 is that two reverse screw rod are coaxially formed by fixedly connecting, the lower surface of described movable block 22 is higher than the upper surface of baffle plate 14, described baffle plate 14 is equal to the distance at little pressure head 211 center with the trailing flank of steel base 21 to the distance at steel pressure head 12 center with the binding face of lower shoe 15, described guide pole 221 is positioned at the lower end of movable block 22, described steel base 21 is provided with the pilot hole 212 corresponding with guide pole 221, one end of guide pole 221 is fixedly connected with movable plate 22, the other end is positioned at pilot hole 212.
As shown in Figure 6, described spring device 16 is spring and nut, the upper and lower side of described column 13 is equipped with cylinder shape groove, limit rib is provided with between two described grooves, the axis of beam groove is located along the same line, the lower end of described spring is positioned at the groove of top, and nut is fixedly connected with top board 11 with the center of spring through limit rib in the groove of below.Described gathering sill 131 and feather key 121 are string configuration, and gathering sill 131 is positioned at two column 13 sides respect to one another, and feather key 121 is positioned at steel pressure head 12 left and right sides.The height of described feather key 121 is identical with the height of steel pressure head 12.The two ends of described spacing adjusting screw(rod) 25 all exceed the lateral surface of two movable block 22 lower ends, and the front end of spacing adjusting screw(rod) 25 is fixed with fastening bolt 252 and setting nut 251.Described guide pole 221 is positioned at the below of spacing adjusting screw(rod) 25, and each movable block 22 is arranged with two.The side of described steel base 21 is provided with air hole 213, and described air hole 213 is connected with pilot hole 212.
The utility model is fixed on top board 11 by steel pressure head 12, top board 11 is connected by spring device 16 elasticity with column 13, column 13 and steel pressure head 12 are provided with the gathering sill 131 and feather key 121 that match each other, make steel pressure head 12 in whole service track, all can keep plumbness and can not depart from, easy to use, the life-span is long.Because two movable blocks 22 are connected by spacing adjusting screw(rod) 25, adjusted the spacing of two grip blocks 23 by spacing adjusting screw(rod) 25, keep the centering of test specimen 3; Grip block 23 is connected with movable block 22 elasticity, grip block 23 is avoided to contact with the hard of test specimen 3 restriction caused test specimen 3 splitting, baffle plate 14 is equal to the distance at little pressure head 211 center with the trailing flank of steel base 21 to the distance at steel pressure head 12 center with the binding face of lower shoe 15, ensure that end face when splitting pressure-bearing surface and splitting surface and test specimen 3 are shaping is vertical, the operations such as setting-out have been lacked in letter, reduce test error, ensure that test mass, improve efficiency.Because specimen holder device 2 is between steel pressure head 12 and lower shoe 15, freely can take out, specimen holder device 2 can be taken out from steel pressure head guiding device 1 when test specimen 3 is installed, then test specimen 3 is installed, test specimen 3 be installed more convenient; The design of guide pole 221 and pilot hole 212, what limit that movable block 22 occurs when mobile in any direction departs from, and ensure that the centering of test specimen 3; Because the cooperation of pilot hole 212 and guide pole 221 requires that gap is little, need in work to apply lubricating oil, the setting of air hole 213 ensure that the operation of guide pole 221.
The utility model is not limited to above-mentioned concrete embodiment, and for the person of ordinary skill of the art from above-mentioned design, without performing creative labour, done all conversion, all drop within protection domain of the present utility model.
Claims (7)
1. a cylindrical specimens wedge interfere fixture, it is characterized in that: comprise steel pressure head guiding device and specimen holder device, described steel pressure head guiding device comprises top board, steel pressure head, column, spring device, baffle plate and lower shoe, described steel pressure head is fixed at the lower surface of top board, described column is provided with two, be fixed at the left and right sides of lower shoe upper surface respectively, two described column sides respect to one another and the left and right sides of steel pressure head are provided with the gathering sill and feather key that match each other, described gathering sill and feather key are perpendicular to the upper surface of lower shoe, two feather keys of described steel pressure head lay respectively in two gathering sills, described top board is positioned at above column, the two ends of top board are connected with two column elasticity by spring device, described baffle plate is fixed at the rear of lower shoe, the front of baffle plate and the rear surface of lower shoe fit tightly, the upper surface of baffle plate is higher than the upper surface of lower shoe, described specimen holder device is between steel pressure head and lower shoe, can freely take out, described specimen holder device comprises steel base, spacing adjusting screw(rod), guide pole, spring device, movable block and grip block, the upper surface center of described steel base is provided with the little pressure head of strip from left to right, described movable block and grip block are equipped with two, and be symmetricly set on the side, front and back of little pressure head, each described movable block is connected by spring device elasticity with the grip block of homonymy, described grip block is positioned at the inner side of two movable blocks, the side that two grip blocks are relative is parallel to each other, and perpendicular to the upper surface of steel base, described movable block is L-type structure, the lower surface of upper end contacts with the upper surface of steel base, the lower end of two movable blocks lays respectively at the side, front and back of steel base, the lower end of two movable blocks is connected by spacing adjusting screw(rod), described spacing adjusting screw(rod) is that two reverse screw rod are coaxially formed by fixedly connecting, the lower surface of described movable block is higher than the upper surface of baffle plate, described baffle plate is equal to the distance at little pressure head center with the trailing flank of steel base to the distance at steel pressure head center with the binding face of lower shoe, described guide pole is positioned at the lower end of movable block, described steel base is provided with the pilot hole corresponding with guide pole, one end of guide pole is fixedly connected with movable plate, the other end is positioned at pilot hole.
2. a kind of cylindrical specimens wedge interfere fixture as claimed in claim 1, it is characterized in that: described spring device is spring and nut, the upper and lower side of described column is equipped with cylinder shape groove, limit rib is provided with between two described grooves, the axis of two grooves is located along the same line, the lower end of described spring is positioned at the groove of top, and nut is fixedly connected with top board with the center of spring through limit rib in the groove of below.
3. a kind of cylindrical specimens wedge interfere fixture as claimed in claim 1, is characterized in that: described gathering sill and feather key are string configuration, and gathering sill is positioned at two column sides respect to one another, and feather key is positioned at the steel pressure head left and right sides.
4. a kind of cylindrical specimens wedge interfere fixture as claimed in claim 3, is characterized in that: the height of described feather key is identical with the height of steel pressure head.
5. a kind of cylindrical specimens wedge interfere fixture as claimed in claim 1, is characterized in that: the two ends of described spacing adjusting screw(rod) all exceed the lateral surface of two movable block lower ends, and the front end of spacing adjusting screw(rod) is fixed with fastening bolt and setting nut.
6. a kind of cylindrical specimens wedge interfere fixture as claimed in claim 5, is characterized in that: described guide pole is positioned at the below of spacing adjusting screw(rod), and each movable block is arranged with two.
7. a kind of cylindrical specimens wedge interfere fixture as claimed in claim 6, it is characterized in that: the side of described steel base is provided with air hole, described air hole is connected with pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280518.5U CN204536112U (en) | 2015-05-05 | 2015-05-05 | A kind of cylindrical specimens wedge interfere fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520280518.5U CN204536112U (en) | 2015-05-05 | 2015-05-05 | A kind of cylindrical specimens wedge interfere fixture |
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| Publication Number | Publication Date |
|---|---|
| CN204536112U true CN204536112U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520280518.5U Expired - Fee Related CN204536112U (en) | 2015-05-05 | 2015-05-05 | A kind of cylindrical specimens wedge interfere fixture |
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| CN (1) | CN204536112U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445101A (en) * | 2015-11-12 | 2016-03-30 | 中国矿业大学 | Experiment clamp capable of being adjusted and aligned and used for determining tensile strength of rocks with splitting method and method for determining tensile strength of rocks |
| CN110987635A (en) * | 2019-11-15 | 2020-04-10 | 河海大学 | Test device of soil core wall water conservancy splitting |
| CN111537389A (en) * | 2020-06-11 | 2020-08-14 | 陈如请 | Ocean engineering ship corrosion prevention measuring system |
-
2015
- 2015-05-05 CN CN201520280518.5U patent/CN204536112U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445101A (en) * | 2015-11-12 | 2016-03-30 | 中国矿业大学 | Experiment clamp capable of being adjusted and aligned and used for determining tensile strength of rocks with splitting method and method for determining tensile strength of rocks |
| CN110987635A (en) * | 2019-11-15 | 2020-04-10 | 河海大学 | Test device of soil core wall water conservancy splitting |
| CN111537389A (en) * | 2020-06-11 | 2020-08-14 | 陈如请 | Ocean engineering ship corrosion prevention measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160505 |
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| CF01 | Termination of patent right due to non-payment of annual fee |