CN203037539U - Shearing box for direct shearing test - Google Patents
Shearing box for direct shearing test Download PDFInfo
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- CN203037539U CN203037539U CN 201220729044 CN201220729044U CN203037539U CN 203037539 U CN203037539 U CN 203037539U CN 201220729044 CN201220729044 CN 201220729044 CN 201220729044 U CN201220729044 U CN 201220729044U CN 203037539 U CN203037539 U CN 203037539U
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Abstract
The utility model relates to the technical field of direct shearing tests, and discloses a shearing box for a direct shearing test. The shearing box includes an upper shearing box and a lower shearing box, limit structures are arranged among outer surfaces of two side walls of the upper shearing box and outer surfaces of two side walls of the lower shearing box respectively and used for limiting the upper shearing box to vertically move relative to the lower shearing box, and first guide rolling structures are arranged among lower end surfaces of two side walls of the upper shearing box and upper end surfaces of two side walls of the lower shearing box respectively, so that the upper shearing box horizontally and linearly moves relative to the lower shearing box. The limit structures can limit the upper shearing box to vertically move relative to the lower shearing box, so that the stress state of geotechnical materials can be controlled, accuracy of a test result is ensured, the geotechnical materials can be limited to be extruded from a shearing belt, the upper shearing box can only horizontally and linearly move relative to the lower shearing box, test failure is avoided, and the shearing box can control drainage conditions of the geotechnical materials, so that the test result cannot be limited.
Description
Technical field
The utility model relates to the technical field that staight scissors are cut test, relates in particular to the shear box of cutting test for staight scissors.
Background technology
Rock-soil material is the material with complex of natural formation on the earth history, its genetic type, particle are formed, physico-mechanical properties varies, for the ease of construction, before construction, must study the performance of the rock-soil material of construction site, generally speaking, all need to utilize 1 pair of rock-soil material of shear box to carry out staight scissors and cut test.
As shown in Figure 1, shear box 1 of the prior art " comprises shear box 11 " and down cut box 12 "; go up shear box 11 " and down cut box 12 " and be superimposed together up and down; and go up shear box 11 and " have first cavity volume 111 "; down cut box 12 " in have second cavity volume 121 "; this first cavity volume 111 " and second cavity volume 121 " communicates; when needs carry out staight scissors when cutting test to rock-soil material, rock-soil material is placed in first cavity volume 111 " and second cavity volume 121 ", and will go up shearing with respect to down cut box 12 and " move horizontally; the mutual dislocation of shear box 11 in the utilization " and down cut box 12 ", the realization of the rock-soil material in it staight scissors are cut.
Above-mentioned shear box 1 " cut when test rock-soil material being carried out staight scissors, exist following defective:
1), go up shear box 11 " with down cut box 12 " and directly be superimposed together, do not have position limiting structure between the two, thereby, cut in the process of test at staight scissors, uncontrollablely go up the vertical relative motion that shear box 11 " with respect to down cut box 12 " produces.Test shows in process of the test, when vertical pressure reaches 300kPa when above, shear stress when rock-soil material is destroyed has also reached equivalent amount level level, under the high shear force horizontality, owing to the asymmetric of horizontal shear force on the rock-soil material that acts on shear box 11 " and down cut box 12 " respectively applies, and the vertical pressure asymmetry with the increase of rock-soil material detrusion factors such as aggravation, cause shear box 1 " in rock-soil material and go up shear box 11 " and down cut box 12 easily " between irregular displacement; upwarp as the part; whole deflection; last shear box 11 " with down cut box 12 " vertical direction separates etc.; like this; cause the rock-soil material stress uncontrollable, and change, depart from the rock-soil material staight scissors and cut the required stress condition of test, thereby influenced staight scissors and cut accuracy of experimental results, phenomenon is being moulded firmly-is often being taken place during big load (reaching the 400kPa magnitude as vertical pressure and the shearing force) experimental stage of hard rock-soil material like this, causes discrete type and the randomness of test findings;
2), mould the rock-soil material of shape for soft moulding-stream, when the load on the rock-soil material is increased to a certain degree (more than vertical pressure 200pKa ~ 300kPa), because the vertical displacement of last shear box 11 " with down cut box 12 " without limits, like this, can cause separating or lifting between the shear box 11 " with down cut box 12 ", the slit opening width of contact site (shear zone) between the shear box 11 " and down cut box 12 " is strengthened, thereby, shear box 1 " in rock-soil material then can directly be extruded destruction from shear zone, the staight scissors of rock-soil material are cut also therefore failure of test.At such situation, the conventional way of haveing no alternative but is: according to the weak degree of rock-soil material, the maximum test heap(ed) capacity that selectional restriction is suitable, to guarantee that rock-soil material can not be extruded shear box 1 " outside; making staight scissors cut test can improperly finish, still, because the vertical pressure that this moment, staight scissors were cut test is limited in lower stress level; thus be difficult to satisfy the required stress state of engineering actual motion, also cause test findings to be used and will be subjected to certain restriction;
3), owing to displacement can occur at vertical direction between the last shear box 11 " and down cut box 12 ", make existing shear box 1 " drainage condition of uncontrollable rock-soil material; thereby; the rock-soil material in it is difficult to reach the situation that fixed or draining do not take place; in practical operation; can only be by changing the speed that the speed of going up the shear rate between the shear box 11 " and down cut box 12 " come the approximate simulation drainage rates; make staight scissors cut and test to be difficult to satisfy actual necessary requirement, the utilization of its test findings also is restricted;
4), existing shear box 1 " last shear box 11 " and down cut box 12 " between directly contact and be superimposed together; and can not control vertical displacement between the shear box 11 " and down cut box 12 "; because of; can not adjust the thickness of the shear zone of being sheared rock-soil material, make test findings can not satisfy actual needs.Cut in the test at staight scissors, the size of shear zone thickness has bigger influence to the result of shear strength test, with regard to the coarse-grained soil staight scissors are cut test, thicker shear zone can reduce hard coarse particle and be cut off, rolls crowded broken failure probability, be converted into the failure mode that coarse particle rolls, positional alignment changes, the actual shear failure proterties that meets coarse-grained soil, cut test with respect to the staight scissors that shear zone is thinner, consequently value of shearing and the shearing strength during shear failure decreases, and test findings is comparatively satisfied rationally reliable;
5), owing to do not have position limiting structure between the last shear box 11 " and down cut box 12 "; in the process that staight scissors are cut; the uncontrollable shear box 11 " with respect to down cut box 12 " of going up; straight line at surface level moves; in the actual tests process; on surface level, through regular meeting the movement of a plurality of directions takes place, thereby cause staight scissors to cut test failure.
The utility model content
The utility model is at deficiency of the prior art, provide for staight scissors and cut the shear box of test, this shear box can limit shear box with respect to the down cut box in the movement of vertical direction, make that shear box moves with respect to down cut box straight line in the horizontal direction and rock-soil material can not be extruded from shear zone, thereby the stressing conditions of control rock-soil material, guarantee that staight scissors cut the success of test and carry out and accuracy of experimental results, and can control the draining of rock-soil material.
The utility model is to realize like this, be used for staight scissors and cut the shear box of test, comprise shear box and be positioned at the described down cut box of going up the shear box below, be respectively equipped with the position limiting structure that the described upward shear box of restriction moves in vertical direction with respect to described down cut box between the two side outside surface of described upward shear box and the two side outside surface of described down cut box, be respectively equipped with between the lower surface of described upward shear box two side and the upper surface of described down cut box two side and make the described first guiding rolling structure that shear box moves in the horizontal direction straight line with respect to described down cut box of going up, the described first guiding rolling structure along continuous straight runs is arranged.
Further, the described first guiding rolling structure comprises being located at respectively and describedly goes up first guide-track groove of shear box side wall lower ends face and described down cut box sidewall upper face and place first ball between two described first guide-track grooves.
Further, have adjustable gap between the lower surface of described upward shear box and the upper surface of described down cut box, form shear zone.
Further, the lower surface of described upward shear box and the upper surface of described down cut box are respectively equipped with first groove of arranging around described shear zone, be provided with the ring body that can in described first groove, move between two described first grooves, the height of described ring body less than two described first guide-track grooves with respect to the degree of depth.
Further, described position limiting structure comprises and is convexly set in the described first bending piece that first raised line that shear box sidewall outside surface and along continuous straight runs extend and an end are fixed in described down cut box sidewall outside surface of going up, the other end of the described first bending piece upwards bending extends to form first concave body, the upper end of described first concave body has along continuous straight runs and extends and second raised line relative with described first raised line, described second raised line places described first raised line top, is provided with between the described first raised line upper surface and the described second raised line lower surface to make the described second guiding rolling structure that shear box moves in the horizontal direction straight line with respect to described down cut box of going up.
Further, the described second guiding rolling structure comprises second guide-track groove of being located at the described first raised line upper surface and the described second raised line lower surface respectively and places second ball between two described second guide-track grooves.
Perhaps, the second bending piece that described position limiting structure comprises the 3rd raised line that is convexly set in described down cut box sidewall outside surface and along continuous straight runs extension and is fixed in described down cut box sidewall outside surface, the described second bending piece bending downwards extends to form second concave body, the lower end of described second concave body has along continuous straight runs and extends and four raised line relative with described the 3rd raised line, described the 4th raised line places described the 3rd raised line below, is provided with between described the 3rd raised line lower surface and described the 4th raised line upper surface to make described the 3rd guiding rolling structure that shear box moves in the horizontal direction straight line with respect to described down cut box of going up.
Further, described the 3rd guiding rolling structure comprises the 3rd guide-track groove of being located at described the 3rd raised line lower surface and described the 4th raised line upper surface respectively and places the 3rd ball between two described the 3rd guide-track grooves.
Compared with prior art, utilize shear box in the present embodiment that rock-soil material is carried out staight scissors and cut test, owing to be respectively equipped with position limiting structure between the two side outside surface of last shear box and the outside surface of down cut box two side, can limit shear box with respect to the movement of down cut box at vertical direction, thereby guarantee to cut in the process of the test at staight scissors, the stress of rock-soil material is controlled.Satisfy required stress condition, warranty test result's accuracy; Mould the rock-soil material of shape for soft moulding-stream, it can limit rock-soil material and extrude from the shear zone between last shear box and the down cut box, guarantees that staight scissors cut success of the test and carry out and the test findings accuracy; And under the restriction of the first guiding rolling structure, the first guiding rolling structure, last shear box can only move with respect to down cut box straight line on horizontal direction, avoids test failure; In addition, shear box can be controlled the drainage condition of rock-soil material, makes rock-soil material fixed phenomenon can not occur, and the warranty test result is unrestricted.
Description of drawings
Fig. 1 is cut-away illustration of cutting the shear box of test for staight scissors of the prior art;
Fig. 2 be the utility model embodiment one provide be used for the cut-away illustration that staight scissors are cut the shear box of test;
Fig. 3 is the enlarged diagram at A place among Fig. 2;
Fig. 4 be the utility model embodiment two provide be used for the cut-away illustration that staight scissors are cut the shear box of test.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model provides for staight scissors and has cut the shear box of test, comprise shear box and be positioned at the described down cut box of going up the shear box below, be respectively equipped with the position limiting structure that the described upward shear box of restriction moves in vertical direction with respect to described down cut box between the two side outside surface of described upward shear box and the two side outside surface of described down cut box, be respectively equipped with between the lower surface of described upward shear box two side and the upper surface of described down cut box two side and make the described first guiding rolling structure that shear box moves in the horizontal direction straight line with respect to described down cut box of going up, the described first guiding rolling structure along continuous straight runs is arranged.
In the utility model, position limiting structure can limit shear box with respect to the movement of down cut box at vertical direction, guarantees that the stress of rock-soil material is controlled, warranty test result's accuracy; Can limit rock-soil material and extrude from shear zone, warranty test is accuracy as a result; Last shear box can only move with respect to down cut box straight line on horizontal direction, avoids test failure; Shear box can be controlled the drainage condition of rock-soil material, and the warranty test result is unrestricted.
Below in conjunction with concrete accompanying drawing realization of the present utility model is described in detail.
Embodiment one
Shown in Fig. 1 ~ 3, a preferred embodiment that provides for the utility model.
As shown in Figure 2, for the ease of the description to the moving direction of rock-soil material in the shear box 1 and shear box 1, directions X is represented vertical direction, and Y-direction is represented horizontal direction, Z direction indication vertical direction, and wherein, XY forms surface level.
The shear box 1 that present embodiment provides, be used for that rock-soil material is carried out staight scissors and cut test, it comprises shear box 11 and down cut box 12, last shear box 11 is placed on the top of down cut box 12, both form superimposed shape, but be not being superimposed together of directly contacting, has adjustable clearance between the two, this gap is exactly shear zone 17, and be provided with downward opening first cavity volume 111 in the last shear box 11, be provided with opening second cavity volume 121 up in the down cut box 12, like this, the opening of the opening of first cavity volume 111 and second cavity volume 121 then forms relative status, and is interconnected, when the staight scissors that utilize this shear box 1 to carry out rock-soil material are cut test, rock-soil material is placed in this first cavity volume 111 and second cavity volume 121, by the dislocation that relatively moves between last shear box 11 and the down cut box 12, first cavity volume 111 and second cavity volume 121 also relative dislocation, thus formation is to the shearing manipulation of rock-soil material.
In order to limit the displacement on vertical direction Z and vertical direction X between shear box 11 and the down cut box 12, in the present embodiment, the two side outside surface of last shear box 11 and the two side outside surface of down cut box 12 are respectively equipped with position limiting structure 13, and position limiting structure 13 along continuous straight runs Y arrange.These position limiting structure 13 restrictions are gone up shear box 11 with respect to the movement of down cut box 12 on vertical direction Z, also limited the movement on the X in the vertical direction of last shear box 11 and down cut box 12 simultaneously, realized that last shear box 11 can only relatively move by along continuous straight runs Y with down cut box 12.
Certainly, in order to realize that shear box 11 is with respect to down cut box 12 movement on the Y in the horizontal direction, just realize the shearing manipulation of 1 pair of rock-soil material of shear box, be respectively equipped with the first guiding rolling structure 16 between the lower surface of the two side of the last shear box 11 in the present embodiment and the upper surface of down cut box 12, this first guiding rolling structure 16 along continuous straight runs Y arrange, its make to go up shear box 11 can with respect to down cut box 12 in the horizontal direction Y move, and also limited last shear box 11 with respect to down cut box 12 movement of Z in the vertical direction, thereby, guaranteed that last shear box 11 moves as straight line with respect to down cut box 12 along continuous straight runs Y, certainly, in the process that last shear box 11 moves with respect to down cut box 12 horizontal direction Y, also mutual dislocation between first cavity volume 111 and second cavity volume 121, thus realize that the rock-soil material in it is carried out staight scissors to be cut.
Utilize 1 pair of rock-soil material of above-mentioned shear box to carry out staight scissors and cut test, because last shear box 11 has position limiting structure 13 with the two side peripheral hardware of down cut box 12, it has limited last shear box 11 with respect to the movement of down cut box 12 on vertical direction Z, thereby guaranteed to cut in the process of the test at staight scissors, last shear box 11 can be now for the displacement of down cut box 12 on vertical direction Z, make that just the stress of rock-soil material in process of the test is controlled, can satisfy required stress condition, warranty test result's accuracy; And mould the rock-soil material of shape at soft moulding-stream, owing to can not separate or lifting at vertical direction between last shear box 11 and the down cut box 12, thereby the restriction rock-soil material is extruded from the shear zone 17 between last shear box 11 and the down cut box 12, thereby warranty test successfully carries out, and has guaranteed accuracy of experimental results; Moreover, since first the guiding rolling structure 16 limited last shear box 11 can only with respect to down cut box 12 in the horizontal direction the Y straight line move, just not in the vertical direction Z move, thereby can avoid test failure; In addition, above-mentioned shear box 1 can be controlled the drainage condition of rock-soil material in it, thereby makes rock-soil material fixed phenomenon can not occur, and warranty test successfully carries out, and the less restriction of being used of test findings.
Particularly, the above-mentioned first guiding rolling structure 16 comprises and is arranged on first guide-track groove on the shear box 11 side wall lower ends face up and down shear box 12 sidewall upper faces and is placed on first ball 161 between two relative first guide-track grooves, the first above-mentioned guide-track groove along continuous straight runs Y extends, just extend along the length direction of two side respectively, like this, utilize first rolling of ball 161 in first guide-track groove, shear box 11 is with respect to down cut box 12 movement on the Y in the horizontal direction in the realization, and because the restriction of first guide-track groove, first ball 161, last shear box 11 also cannot with respect to down cut box 12 in the vertical direction Z and vertical direction X move, just Y goes up straight line and moves in the horizontal direction.
Certainly, the above-mentioned first guiding rolling structure 16 can also be other various ways, for example guide-track groove and cooperating of raised line etc., is not restricted to the designed structure of present embodiment.
Particularly, above-mentioned position limiting structure 13 comprises and is convexly equipped with the first bending piece 131 that is fixed on down cut box 12 sidewall outside surfaces at first raised line 133 of last shear box 11 sidewall outside surfaces and an end, these first bending piece, 131 1 ends are fixed on the sidewall outside surface of down cut box 12, its other end upwards is bent to form first concave body, and the upper end of this first concave body forms second raised line 1311, these second raised line, 1311 positions are above first raised line 133, constitute (angle) grooved guide rail jointly with first raised line 133, certainly, for shear box 11 is moved with respect to along continuous straight runs Y between the down cut box 12, first raised line 133 and second raised line 1311 all are that along continuous straight runs Y extends.
In order to realize cooperating between first raised line 133 and second raised line 1311, and this position limiting structure 13 can limit shear box 11 with respect to the movement of down cut box 12 at vertical direction Z, be provided with the second guiding rolling structure 134 between the lower surface of the upper surface of first raised line 133 and second raised line 1311, this second guiding rolling structure 134 along continuous straight runs Y extend layout, it can be so that go up shear box 11 with respect to down cut box 12 movement of Y in the horizontal direction, and shear box 11 moves at vertical direction Z and vertical direction X with respect to down cut box 12 in the restriction, like this, under the effect of the first guiding rolling structure 16 and the second guiding rolling structure 134, last shear box 11 can move with respect to down cut box 12 straight line in the horizontal direction.
Particularly, the above-mentioned second guiding rolling structure 134 comprises and is separately positioned on second guide-track groove on first raised line, 133 upper surfaces and second raised line, 1311 lower surfaces and places second ball 1341 between two second guide-track grooves, like this, utilize second ball 1341 mobile in two second guide-track grooves, can realize that shear box 11 moves with respect to the horizontal linear of down cut box 12, and because second guide-track groove has limited last shear box 11 with respect to the movement of down cut box 12 in vertical direction and vertical direction to the restriction of second ball 1341.
Certainly, the above-mentioned second guiding rolling structure 134 can also be other various ways, for example guide-track groove and cooperating of raised line etc., is not restricted to the designed structure of present embodiment.
First concave body in above-mentioned refers to: by the upwards bending of the first bending piece, 131 1 ends, formed the block of a concave shape, i.e. first concave body, the cavity opening of this first concave body is towards shear box 1 sidewall, like this, when second raised line 1311 of first concave body upper end was relative with first raised line 133, first raised line 133 was to be placed in the cavity of this first concave body.
In the present embodiment, an end of the first bending piece 131 is fixed on by securing member on the sidewall of down cut box 12, and certainly, this fixed form also can be other various ways.
In above-mentioned first guiding rolling structure 16 all adopts ball to cooperate with guide-track groove with the second guiding rolling structure 134, like this, utilize the roll mode of ball, last shear box 11 and the friction force consumption of down cut box 12 in the process of relatively moving can have been reduced greatly, can be so that horizontal shear force substantially all act on the shear surface of rock-soil material, thus the measuring accuracy of rock-soil material shear stress improved; In addition, by selecting the ball of suitable diameter, namely by changing the diameter of first ball 161 and second ball 1341, can change the thickness of going up the shear zone 17 between shear box 11 and the down cut box 12, thereby, for rock-soil material of different nature provides shear zone 17 test conditions of suitable depth, improve accuracy of experimental results and specific aim.
When rock-soil material is cut when test carrying out heavily stressed staight scissors, in order to prevent that side direction is extruded the shear zone 17 of rock-soil material between last shear box 11 and down cut box 12, keep the stress state of the rock-soil material in the shear box 1 can not change, be respectively equipped with first groove on the upper surface of the lower surface of last shear box 11 and down cut box 12, this first groove arranges around shear zone 17, form annular shape, and between first groove, be placed with the ring body 14 that can in first groove, slide, and the height of ring body 14 is slightly less than the relative depth of first groove, like this, namely guarantee when last shear box 11 moves with respect to down cut box 12, ring body 14 can slide between first groove, and ring body 14 can not be subjected to the vertical extruding force of shear box 1, has avoided the loss of horizontal frictional resistance.
In above-mentioned lower surface of going up shear box 11; or on the upper surface of down cut box 12; the first above-mentioned groove places the inboard of second guide-track groove; like this; the protective effect of ring body 14 is arranged; can also avoid rock-soil material to be extruded in second guide-track groove, avoid influencing the operate as normal of the second guiding rolling structure 134.
In order to solve the draining control of shear box 1, rubber sealing packing ring 15 also can be placed in shear zone 17 both sides ring bodies 14 positions between last shear box 11 and the down cut box 12, can improve the lateral drainage leakproofness of shear box by this rubber washer 15, blocking-up may exist lets out drainage channel, the drainage condition that makes staight scissors cut test obtains good improvement and control, reduced staight scissors and cut pore water pressure loss in the process of the test, further improved the rock-soil material staight scissors and cut accuracy of experimental results and rationality.
Embodiment two
As shown in Figure 4, another preferred embodiment that provides for the utility model.
The difference of present embodiment and embodiment one is: position limiting structure 13 comprises and is convexly equipped with the second bending piece 136 that is fixed on shear box 11 sidewall outside surfaces at the 3rd raised line 135 of down cut box 12 sidewall outside surfaces and an end, these second bending piece, 136 1 ends are fixed on the sidewall outside surface of shear box 11, its other end is bent to form second concave body downwards, and the upper end of this second concave body forms the 4th raised line 1361, the 4th raised line 1361 is formed on the below of the 3rd raised line 135, be oppositely arranged with the 3rd raised line 135, form the gap between the two, certainly, move with respect to the horizontal direction Y between the down cut box 12 in order not limit shear box 11, the 3rd raised line 135 and the 4th raised line 1361 all are that along continuous straight runs Y extends.
In order to realize cooperating between the 3rd raised line 135 and the 4th raised line 1361, and this position limiting structure 13 can limit shear box 11 with respect to the movement of down cut box 12 at vertical direction Z, be provided with the 3rd guiding rolling structure 137 between the lower surface of the lower surface of the 3rd raised line 135 and the 4th raised line 1361, the 3rd guiding rolling structure 137 along continuous straight runs Y extend layout, it can be so that go up shear box 11 with respect to down cut box 12 movement of Y in the horizontal direction, and shear box 11 moves at vertical direction Z and vertical direction X with respect to down cut box 12 in the restriction, like this, first the guiding rolling structure 16 and the 3rd the guiding rolling structure 137 effect under, last shear box 11 can with respect to down cut box 12 in the horizontal direction the straight line of Y move.
Particularly, above-mentioned the 3rd guiding rolling structure 137 comprises and is separately positioned on the 3rd guide-track groove on the 3rd raised line 135 lower surfaces and the 4th raised line 1361 upper surfaces and places the 3rd ball 1371 between two the 3rd guide-track grooves, like this, utilize the 3rd ball 1371 mobile in two the 3rd guide-track grooves, can realize that shear box 11 moves with respect to the horizontal Y straight line of down cut box 12, and because the 3rd guide-track groove has limited last shear box 11 with respect to the movement of down cut box 12 at vertical direction Z and vertical direction X to the restriction of the 3rd ball 1371.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. be used for staight scissors and cut the shear box of test, comprise shear box and be positioned at the described down cut box of going up the shear box below, it is characterized in that, be respectively equipped with the position limiting structure that the described upward shear box of restriction moves in vertical direction with respect to described down cut box between the two side outside surface of described upward shear box and the two side outside surface of described down cut box, be respectively equipped with between the lower surface of described upward shear box two side and the upper surface of described down cut box two side and make the described first guiding rolling structure that shear box moves in the horizontal direction straight line with respect to described down cut box of going up, the described first guiding rolling structure along continuous straight runs is arranged.
2. the shear box of cutting test for staight scissors as claimed in claim 1, it is characterized in that the described first guiding rolling structure comprises being located at respectively describedly to be gone up first guide-track groove of shear box side wall lower ends face and described down cut box sidewall upper face and place first ball between two described first guide-track grooves.
3. as claimed in claim 1ly cut the shear box of test for staight scissors, it is characterized in that, have adjustable gap between the upper surface of described lower surface of going up shear box and described down cut box, form shear zone.
4. the shear box of cutting test for staight scissors as claimed in claim 2, it is characterized in that, the lower surface of described upward shear box and the upper surface of described down cut box are respectively equipped with first groove of arranging around described shear zone, be provided with the ring body that can move in described first groove between two described first grooves, the height of described ring body is less than the relative depth of two described first guide-track grooves.
5. as each described shear box of cutting test for staight scissors of claim 1 to 4, it is characterized in that, described position limiting structure comprises and is convexly set in the described first bending piece that first raised line that shear box sidewall outside surface and along continuous straight runs extend and an end are fixed in described down cut box sidewall outside surface of going up, the other end of the described first bending piece upwards bending extends to form first concave body, the upper end of described first concave body has along continuous straight runs and extends and second raised line relative with described first raised line, described second raised line places described first raised line top, is provided with between the described first raised line upper surface and the described second raised line lower surface to make the described second guiding rolling structure that shear box moves in the horizontal direction straight line with respect to described down cut box of going up.
6. the shear box of cutting test for staight scissors as claimed in claim 5, it is characterized in that the described second guiding rolling structure comprises second guide-track groove of being located at the described first raised line upper surface and the described second raised line lower surface respectively and places second ball between two described second guide-track grooves.
7. as each described shear box of cutting test for staight scissors of claim 1 to 4, it is characterized in that, the second bending piece that described position limiting structure comprises the 3rd raised line that is convexly set in described down cut box sidewall outside surface and along continuous straight runs extension and is fixed in described down cut box sidewall outside surface, the described second bending piece bending downwards extends to form second concave body, the lower end of described second concave body has along continuous straight runs and extends and four raised line relative with described the 3rd raised line, described the 4th raised line places described the 3rd raised line below, is provided with between described the 3rd raised line lower surface and described the 4th raised line upper surface to make described the 3rd guiding rolling structure that shear box moves in the horizontal direction straight line with respect to described down cut box of going up.
8. the shear box of cutting test for staight scissors as claimed in claim 7, it is characterized in that described the 3rd guiding rolling structure comprises the 3rd guide-track groove of being located at described the 3rd raised line lower surface and described the 4th raised line upper surface respectively and places the 3rd ball between two described the 3rd guide-track grooves.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729044 CN203037539U (en) | 2012-12-26 | 2012-12-26 | Shearing box for direct shearing test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729044 CN203037539U (en) | 2012-12-26 | 2012-12-26 | Shearing box for direct shearing test |
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| CN203037539U true CN203037539U (en) | 2013-07-03 |
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| CN104020055A (en) * | 2014-06-10 | 2014-09-03 | 黄河勘测规划设计有限公司 | Multifunctional direct shear and consolidation device of coarse-grained soil |
| CN104062175A (en) * | 2014-06-25 | 2014-09-24 | 成都东华卓越科技有限公司 | Guiding-antirotation-antifriction device for shearing box |
| CN107036906A (en) * | 2017-03-29 | 2017-08-11 | 同济大学 | A kind of rock joint sample direct shear test box |
| CN107515153A (en) * | 2017-08-31 | 2017-12-26 | 常熟市徐润机电有限公司 | The parallel locking device of upper shear box |
| CN107576580A (en) * | 2017-08-31 | 2018-01-12 | 常熟市徐润机电有限公司 | Strain controlling formula direct shear apparatus |
| CN107843485A (en) * | 2017-12-19 | 2018-03-27 | 浙江工业大学 | Temperature control shearing box device for direct shearing experiment and operation method |
| CN108225944A (en) * | 2018-01-22 | 2018-06-29 | 西南交通大学 | A kind of rubble railway ballast direct shear test instrument |
| CN108254263A (en) * | 2017-12-15 | 2018-07-06 | 浙江科技学院 | One kind is based on the more dimensional structure face shear box assemble methods of standard block limited block assembly type |
| CN108362577A (en) * | 2018-01-26 | 2018-08-03 | 中国电力科学研究院有限公司 | A kind of original position direct shear apparatus and its detection method |
| CN109406303A (en) * | 2019-01-09 | 2019-03-01 | 福州大学 | Orient the large-scale indoor direct shear apparatus of self-balancing type and its working method of low friction |
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| CN111398064A (en) * | 2020-04-21 | 2020-07-10 | 中国科学院武汉岩土力学研究所 | On-spot shearing experiment platform |
| CN113029819A (en) * | 2021-03-19 | 2021-06-25 | 三峡大学 | Sample preparation and test integrated shearing device and method suitable for self-expanding medium |
| CN113358493A (en) * | 2021-05-27 | 2021-09-07 | 西安石油大学 | Soil body shearing box, experiment system with same and method thereof |
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2012
- 2012-12-26 CN CN 201220729044 patent/CN203037539U/en not_active Expired - Fee Related
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| CN104020055A (en) * | 2014-06-10 | 2014-09-03 | 黄河勘测规划设计有限公司 | Multifunctional direct shear and consolidation device of coarse-grained soil |
| CN104062175A (en) * | 2014-06-25 | 2014-09-24 | 成都东华卓越科技有限公司 | Guiding-antirotation-antifriction device for shearing box |
| CN107036906A (en) * | 2017-03-29 | 2017-08-11 | 同济大学 | A kind of rock joint sample direct shear test box |
| CN107515153A (en) * | 2017-08-31 | 2017-12-26 | 常熟市徐润机电有限公司 | The parallel locking device of upper shear box |
| CN107576580A (en) * | 2017-08-31 | 2018-01-12 | 常熟市徐润机电有限公司 | Strain controlling formula direct shear apparatus |
| CN107515153B (en) * | 2017-08-31 | 2023-12-19 | 常熟市徐润机电有限公司 | Parallel locking device for upper shearing box |
| CN107576580B (en) * | 2017-08-31 | 2023-12-19 | 常熟市徐润机电有限公司 | Strain control type direct shear apparatus |
| CN108254263B (en) * | 2017-12-15 | 2020-08-21 | 浙江科技学院 | Assembly type multi-size structural plane shear box assembly method based on standard unit limiting block |
| CN108254263A (en) * | 2017-12-15 | 2018-07-06 | 浙江科技学院 | One kind is based on the more dimensional structure face shear box assemble methods of standard block limited block assembly type |
| CN107843485A (en) * | 2017-12-19 | 2018-03-27 | 浙江工业大学 | Temperature control shearing box device for direct shearing experiment and operation method |
| CN108225944A (en) * | 2018-01-22 | 2018-06-29 | 西南交通大学 | A kind of rubble railway ballast direct shear test instrument |
| CN108362577A (en) * | 2018-01-26 | 2018-08-03 | 中国电力科学研究院有限公司 | A kind of original position direct shear apparatus and its detection method |
| CN109406303A (en) * | 2019-01-09 | 2019-03-01 | 福州大学 | Orient the large-scale indoor direct shear apparatus of self-balancing type and its working method of low friction |
| CN109580387A (en) * | 2019-01-17 | 2019-04-05 | 郑州大学 | A kind of soil layer interface shear testing maschine and soil layer interface shearing test case |
| CN111398064A (en) * | 2020-04-21 | 2020-07-10 | 中国科学院武汉岩土力学研究所 | On-spot shearing experiment platform |
| CN113029819A (en) * | 2021-03-19 | 2021-06-25 | 三峡大学 | Sample preparation and test integrated shearing device and method suitable for self-expanding medium |
| CN113358493A (en) * | 2021-05-27 | 2021-09-07 | 西安石油大学 | Soil body shearing box, experiment system with same and method thereof |
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