CN217277317U - Bending performance detection device - Google Patents

Abstract

The utility model relates to a detect technical field, provide a bending property detection device, include: the device comprises a support, a supporting roller mechanism, a driving mechanism and a pressure head mechanism; the two supporting roller mechanisms are arranged at intervals along the length direction of the support, each supporting roller mechanism comprises a supporting roller frame and supporting rollers, the supporting rollers are arranged on one side of the supporting roller frame, the two supporting rollers of the two supporting roller mechanisms are arranged oppositely, and the two supporting rollers are used for supporting a sample; the driving mechanism drives one of the two supporting roller frames to move along a first direction, and the other supporting roller frame to move along a second direction, wherein the first direction is opposite to the second direction; the support is used for supporting the supporting roller mechanism and the driving mechanism, and the pressure head mechanism is used for applying load to the sample. The utility model discloses a bending property detection device, two supporting roller framves of actuating mechanism drive move or back on the back mutually simultaneously in opposite directions, and span between can two supporting roller framves of quick, accurate adjustment is favorable to improving detection efficiency.

Description

Bending performance detection device

Technical Field

The utility model relates to a detect technical field, especially relate to a bending property detection device.

Background

The bending test is mainly used for testing the performance of the material under the action of bending load, the bending test is commonly used for testing the bending strength of the material in production, and the material is usually supported by two points and is tested by applying pressure in the middle.

The existing bending machine bends a sample by placing the sample on two support rollers of the bending machine, bending the sample by driving a pressure head, and manually adjusting the span of the two support rollers or adjusting the span of the two support rollers by two driving pieces when bending the sample with different thicknesses, so that the span adjusting efficiency is low; and the support rollers with different specifications need to be replaced, so that the labor intensity of disassembly and assembly is high, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bending property detection device for there is the structure complicacy, the span is adjusted inefficiency in solving current bending property detection device, leads to the problem that detection efficiency is low.

The utility model provides a bending property detection device, include: the device comprises a support, a supporting roller mechanism, a driving mechanism and a pressure head mechanism;

the two supporting roller mechanisms are arranged at intervals along the length direction of the support, each supporting roller mechanism comprises a supporting roller frame and supporting rollers, the supporting rollers are arranged on one side of the supporting roller frame, the two supporting rollers of the two supporting roller mechanisms are arranged oppositely, and the two supporting rollers are used for supporting a sample;

the driving mechanism drives one of the two supporting roller frames to move along a first direction, and the other supporting roller frame to move along a second direction, wherein the first direction is opposite to the second direction;

the support is used for supporting the supporting roller mechanism and the driving mechanism, and the pressure head mechanism is used for applying load to the sample.

According to the utility model provides a bending property detection device, the driving mechanism comprises a driving gear, a driven gear, a rotating shaft, a guide shaft and a driving piece;

the two rotating shafts are arranged at intervals along the length direction of the support, the two rotating shafts are coaxially arranged, and the two support roller frames are respectively in threaded connection with the two rotating shafts; the supporting roller frames are provided with first through holes, the first through holes are matched with the guide shafts, the guide shafts sequentially penetrate through the first through holes of the two supporting roller frames, and the axes of the guide shafts are parallel to the axis of the rotating shaft;

the driven gear is arranged at one end of the rotating shaft, the driven gear is arranged oppositely, the driven gear is meshed with the driving gear and is connected with the driving gear, and the driving piece is used for driving the driving gear to rotate.

According to the utility model provides a bending property detection device, the support comprises a bottom plate, a side plate, a sealing plate and a fixing plate;

the two side plates are arranged on two sides of the bottom plate, and the two sealing plates are respectively arranged at two ends of the bottom plate and two ends of the two side plates;

the fixing plate is arranged on the bottom plate and provided with a second through hole; one end of the rotating shaft is rotatably connected with the sealing plates, the other end of the rotating shaft penetrates through the second through hole to be connected with the driven gear, and two ends of the guide shaft are respectively connected with the two sealing plates.

According to the utility model provides a bending property detection device, the bending property detection device also comprises a support connecting piece;

one end of the support connecting piece is connected with the bottom plate, and the other end of the support connecting piece is used for being connected with a testing machine.

According to the bending performance detection device provided by the utility model, the supporting roller mechanism further comprises a connecting component;

the support roller is provided with a first end and a second end which are opposite to each other, and the first end and the second end are respectively used for adapting to samples with different specifications;

the supporting roller is movably connected with the supporting roller frame through the connecting assembly, the connecting assembly can move between a first position and a second position, and the supporting roller is attached to the supporting roller frame under the condition that the connecting assembly is located at the first position; when the connecting assembly is located at the second position, the supporting roller is separated from the supporting roller frame and can rotate around the axis of the connecting assembly.

According to the utility model provides a bending property detection device, the connecting component comprises a connecting rod and an elastic piece;

one end of the connecting rod is convexly provided with a limiting part along the outer wall of the connecting rod, and the other end of the connecting rod is provided with an external thread; one side of the supporting roller, which is attached to the supporting roller frame, is provided with a threaded hole, the supporting roller frame is provided with mounting holes penetrating through two opposite side surfaces of the supporting roller frame, and the mounting holes comprise a groove and a third through hole which are sequentially communicated;

the connecting rod is sequentially penetrated through the groove and the third through hole and is in threaded connection with the threaded hole, one end of the elastic piece is abutted against the groove bottom of the groove, and the other end of the elastic piece is abutted against one side of the limiting part facing the groove bottom.

According to the utility model provides a pair of bending property detection device, the supporting roller with be equipped with limit structure between the relative wall of supporting roller frame, limit structure includes: the limiting protrusion is matched with the limiting groove; the limiting protrusion and the limiting groove are respectively arranged on the supporting roller and the supporting roller frame.

According to the bending performance detection device provided by the utility model, the supporting roller mechanism further comprises a clamping component;

the clamping assembly comprises a screw and two clamping plates, one side of the support roller frame, which is far away from the support, is provided with a limiting block, two limiting grooves are formed by outwards extending along two opposite sides of the limiting block, and the limiting block is provided with a fourth through hole which penetrates through the two opposite sides of the limiting block;

the one end of screw rod is equipped with the levogyration screw thread section, the other end of screw rod is equipped with the dextrorotation screw thread section, the screw rod is worn to establish the fourth through-hole, two grip blocks with the levogyration screw thread section with the dextrorotation screw thread section one-to-one is connected, two grip blocks with two spacing groove looks adaptations, two grip blocks are used for the centre gripping the sample.

According to the utility model provides a pair of bending property detection device, the centre gripping subassembly still includes the baffle, the baffle is located the tip of screw rod.

According to the utility model provides a bending property detection device, the pressure head mechanism comprises a pressure head connecting piece, a connecting plate, a connecting block and two clamping blocks;

one end of the pressure head connecting piece is used for being connected with the testing machine, the other end of the pressure head connecting piece is connected with the connecting plate, and the two clamping blocks are arranged on two sides of the connecting plate;

the both ends of connecting block are equipped with first pressure head and second pressure head respectively, the connecting block clamp is located between the inner wall of two grip blocks, the connecting block with two grip blocks rotate to be connected.

The utility model provides a bending property detection device, two supporting roller mechanisms set up along the length direction interval of support, and two supporting roller frames of actuating mechanism drive move or back on the back mutually simultaneously in opposite directions, span between two supporting roller frames of can be quick, the accurate adjustment to adapt to the sample of different thickness, be favorable to improving detection efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is one of schematic structural diagrams of a bending performance detecting apparatus provided by the present invention;

fig. 2 is a second schematic structural diagram of the bending performance detecting apparatus provided by the present invention;

fig. 3 is one of the schematic structural diagrams of the supporting roller mechanism provided by the present invention;

fig. 4 is a second schematic structural view of the supporting roller mechanism provided by the present invention;

fig. 5 is a schematic structural diagram of the screw rod provided by the present invention;

fig. 6 is one of the schematic structural diagrams of the pressing head mechanism provided by the present invention;

fig. 7 is a second schematic structural view of the pressing head mechanism provided by the present invention;

reference numerals are as follows:

1: a support connection member; 2: a first lock nut;

3: a first positioning pin; 4: a base plate;

5: a side plate; 6: closing plates;

7: a guide shaft; 8: a rotating shaft;

9: a fixing plate; 10: a driving gear;

11: a bearing; 12: a driven gear;

13: a drive shaft; 14: a hand wheel;

15: countersunk head screws; 16: carrying out top thread;

17: a roller frame; 18: a connecting rod;

19: a cylindrical spring; 20: supporting a roller;

21: a clamping plate; 22: a handle;

23: a screw; 24: a baffle plate;

25: tightening the screw; 26: a ram connector;

27: a second lock nut; 28: a second positioning pin;

29: a connecting plate; 30: a clamping block;

31: connecting blocks; 32: a ram shaft;

33: a bead screw.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The bending performance detection apparatus according to an embodiment of the present invention is described below with reference to fig. 1 to 7.

As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a bending performance detecting apparatus, including: the device comprises a support, a support roller mechanism, a driving mechanism and a pressure head mechanism. The two supporting roller mechanisms are arranged at intervals along the length direction of the support, each supporting roller mechanism comprises a supporting roller frame 17 and supporting rollers 20, the supporting rollers 20 are arranged on one side of the supporting roller frame 17, the two supporting rollers 20 of the two supporting roller mechanisms are arranged oppositely, and the two supporting rollers 20 are used for supporting a sample; the driving mechanism drives one of the two supporting roller frames 17 to move along a first direction, and the other one of the two supporting roller frames 17 to move along a second direction, wherein the first direction is opposite to the second direction; the support is used for supporting the supporting roller mechanism and the driving mechanism, and the pressure head mechanism is used for applying load to the sample.

Specifically, the support is formed with the accommodation space, and branch roller mechanism and actuating mechanism are located the accommodation space, and two branch roller mechanisms set up along the length direction interval of support, and two branch roller mechanisms set up about the central plane symmetry of support.

The supporting roller mechanism comprises a supporting roller frame 17 and supporting rollers 20, the supporting rollers 20 are arranged on one side of the supporting roller frame 17, the supporting rollers 20 are detachably connected with the supporting roller frame 17, the two supporting roller frames 17 are arranged in the accommodating space in a sliding mode, the two supporting rollers 20 are respectively located on one side, close to the two supporting roller frames 17, the top of the supporting rollers 20 is slightly higher than the top of the supporting roller frames 17, the tops of the two supporting rollers 20 are respectively used for contacting with the two ends of a sample, and therefore a three-point bending test is conducted on the sample through a pressure head.

The driving mechanism drives the two supporting roller frames 17 to move simultaneously, the moving directions of the two supporting roller frames 17 are opposite, the driving mechanism drives the two supporting roller frames 17 to move in the same direction or in the opposite direction according to the thickness of a sample, the span between the two supporting roller frames 17 can be quickly adjusted, and the pressure head force application point and the distance between the two supporting rollers 20 are equal.

The embodiment of the utility model provides an in, two supporting roller mechanisms set up along the length direction interval of support, and two supporting roller frame 17 of actuating mechanism drive move or back on the back mutually simultaneously in opposite directions, and the span between two supporting roller frame 17 of can be quick, the accurate adjustment ensures that the pressure head is applied force and is equal with the distance between two supporting rollers 20 to adapt to the sample of different thickness, be favorable to improving detection efficiency.

As shown in fig. 1 and 2, in an alternative embodiment, the driving mechanism includes a driving gear 10, a driven gear 12, a rotating shaft 8, a guide shaft 7, and a driving member. The axis of the guide shaft 7 is parallel to the axis of the rotating shaft 8; the two rotating shafts 8 are arranged at intervals along the length direction of the support, the two rotating shafts 8 are coaxially arranged, and the two supporting roller frames 17 are respectively in threaded connection with the two rotating shafts 8; the supporting roller frames 17 are provided with first through holes, the first through holes are matched with the guide shafts 7, and the guide shafts 7 sequentially penetrate through the first through holes of the two supporting roller frames 17; driven gear 12 locates the one end of axis of rotation 8, and two driven gear 12 set up relatively, and two driven gear 12 all are connected with the meshing of driving gear 10, and the driving piece is used for driving gear 10 and rotates.

Specifically, the bottom of the supporting roller frame 17 is provided with a through threaded hole, the rotating shaft 8 is provided with an external thread along the length direction of the rotating shaft, and the rotating shaft 8 penetrates through the threaded hole of the supporting roller frame 17 and is in threaded connection with the supporting roller frame 17. The bottom of the supporting roller frame 17 is also provided with a through first through hole, the first through hole is close to the threaded hole, the position and the size of the first through hole are set according to actual requirements, the guide shaft 7 sequentially penetrates through the first through holes of the two supporting roller frames 17, and the guide shaft 7 plays a role in guiding the movement of the two supporting roller frames 17.

The two ends of the rotating shaft 8 are defined as a first end of the rotating shaft 8 and a second end of the rotating shaft 8 respectively, the first end of the rotating shaft 8 is an end close to the central plane of the support, and the second end of the rotating shaft 8 is an end far away from the central plane of the support.

The driving gear 10 and the driven gear 12 are bevel gears, the size specifications of the driving gear 10 and the driven gear 12 are set according to actual requirements, the driving gear 10 and the driven gear 12 can be bevel gears with the same size specification, the driven gear 12 is arranged at the first end of the rotating shaft 8, and the driven gear 12 and the rotating shaft 8 can be in key connection or connected through a jackscrew 16. Two driven gears 12 are respectively arranged at the first ends of the two rotating shafts 8, and the two driven gears 12 are both meshed with the driving gear 10.

The driving gear 10 is connected with a driving part through a driving shaft 13, one end of the driving shaft 13 and the driving gear 10 can be connected through a key or a jackscrew, and the driving shaft 13 can be an optical axis. The driving member may be a handwheel 14 or a motor, for example, the other end of the driving shaft 13 is connected to the handwheel 14, and the handwheel 14 is rotated to drive the driving gear 10 to rotate, so as to drive the two driven gears 12 to rotate, the two driven gears 12 drive the two rotating shafts 8 to rotate, and then the two supporting roller frames 17 move towards the first ends of the two rotating shafts 8 simultaneously, or move towards the second ends of the two rotating shafts 8 simultaneously. The other end of the driving shaft 13 can also be connected with an output shaft of a motor, and the driving gear 10 is driven to rotate by the motor.

For example, when the handwheel 14 is rotated in a clockwise direction, the two support roller frames 17 move towards the first ends of the two rotation shafts 8 at the same time, and when the handwheel 14 is rotated in a counterclockwise direction, the two support roller frames 17 move towards the second ends of the two rotation shafts 8 at the same time, so that the distance between the two support roller frames 17 can be adjusted quickly and accurately.

The embodiment of the utility model provides an in, two coaxial settings of axis of rotation 8, two journal roller frame 17 and two 8 threaded connection in axis of rotation, the guiding axle 7 wears to establish the first through-hole on two journal roller frame 17 in proper order, two first ends of two 8 axes of rotation are all located to two driven gear 12, two driven gear 12 all are connected with the meshing of driving gear 10, driving piece drive driving gear 10 rotates, make two journal roller frame 17 move towards two 8 first ends of axis of rotation simultaneously, perhaps move towards the second end of two 8 axes of rotation simultaneously, moreover, the steam generator is simple in structure, be favorable to two the rapidness of journal roller frame 17 interval simultaneously, accurate adjustment.

In an alternative embodiment, shown in figures 1 and 2, the support comprises a base plate 4, side plates 5, a closure plate 6 and a fixing plate 9. The two side plates 5 are arranged on two sides of the bottom plate 4, and the two sealing plates 6 are respectively arranged at two ends of the bottom plate 4 and the two side plates 5; the fixing plate 9 is arranged on the bottom plate 4, and the fixing plate 9 is provided with a second through hole; one end of the rotating shaft 8 is rotatably connected with the sealing plate 6, and the other end of the rotating shaft 8 penetrates through the second through hole to be connected with the driven gear 12.

Specifically, two curb plates 5 are the same with bottom plate 4's length, and two curb plates 5 can connect in the both sides of bottom plate 4 through welded mode, and two curb plates 5 and bottom plate 4 enclose into U type groove, and two shrouding 6 can be dismantled and connect in the both ends in U type groove.

Be equipped with blind hole and through-hole on shrouding 6, the size and the position of blind hole and through-hole set up according to actual demand, and the blind hole is used for being connected with axis of rotation 8, and the through-hole is used for being connected with guiding axle 7. A bearing 11 is arranged in the blind hole, a second through hole is formed in the fixing plate 9, the bottom surface of the fixing plate 9 is connected with the bottom plate 4, a second through hole is formed in the first end of the rotating shaft 8 in a penetrating mode, and the fixing plate 9 plays a supporting role in the first end of the rotating shaft 8; the second end of the rotating shaft 8 is inserted into the bearing 11 to realize the rotating connection with the bearing 11.

Still be equipped with a plurality of counter bores on the shrouding 6, realize dismantling being connected of shrouding 6 and bottom plate 4 and two curb plates 5 through countersunk screw 15. Shaft shoulders are arranged at two ends of the guide shaft 7, the sealing plate 6 at one end of the U-shaped groove is assembled when the guide shaft 7 is installed, one end of the guide shaft 7 is inserted into the through hole of the sealing plate 6, and the shaft shoulders are attached to the sealing plate 6; then the other end of guiding axle 7 with the through-hole centering on another shrouding 6, another shrouding 6 respectively with the other end of guiding axle 7 and another axis of rotation 8 equipment accomplish the back, the rethread countersunk screw 15 realize being connected with dismantling of another shrouding 6 and bottom plate 4 and two curb plates 5.

One of the side plates 5 is provided with a through hole, a bearing 11 is installed in the through hole, the driving shaft 13 is provided with two clamping grooves, after the driving shaft 13 penetrates through the bearing 11, the two clamping grooves are located on two opposite sides of the side plate 5, two shaft retaining rings are respectively installed at the two clamping grooves, and the two shaft retaining rings are used for achieving axial positioning of the driving shaft 13.

Further, still be equipped with the through-hole that supplies guiding axle 7 to wear to establish on the fixed plate 9, guiding axle 7 wears to establish first through-hole on two supporting roller framves 17 and the through-hole on two fixed plates 9 and is connected with two shrouding 6, is favorable to the steadiness of guiding axle 7.

The embodiment of the utility model provides an in, two shrouding 6 can be dismantled and locate bottom plate 4 and two both ends of curb plate 5, and the one end and the 6 rotations of shrouding of axis of rotation 8 are connected, and the other end and the 9 rotations of fixed plate of axis of rotation 8 are connected, and on bottom plate 4 was located to fixed plate 9, the both ends and two shrouding 6 of guiding axle 7 were connected, compact structure, and the assembly is convenient.

As shown in fig. 1, in an alternative embodiment, the bending performance testing apparatus further includes a stand connecting member 1; one end of the support connecting piece 1 is connected with the bottom plate 4, and the other end of the support connecting piece 1 is used for being connected with a testing machine.

Specifically, the support connecting piece 1 is perpendicular to the bottom plate 4, a first through hole penetrating through the top surface and the bottom surface of the bottom plate 4 is formed in the bottom plate 4, one end of the support connecting piece 1 is located in the first through hole, a second through hole penetrating through two side surfaces of the bottom plate 4 is further formed in the bottom plate 4 and is communicated with the first through hole, the first positioning pin 3 can be a cylindrical positioning pin, and the cylindrical positioning pin penetrates through the second through hole and the first through hole, so that one end of the support connecting piece 1 is connected with the bottom plate 4. The other end of support connecting piece 1 is connected with the base of testing machine, and the connected mode does not do specific restriction, can realize the support fixed can, the middle part of support connecting piece 1 is equipped with the screw thread, and the first lock nut 2 of screw thread department installation prevents that support connecting piece 1 from taking place to rock.

As shown in fig. 1 and 3, in an alternative embodiment, the roller mechanism further includes a connecting assembly; the support roller 20 is provided with a first end and a second end which are opposite to each other, and the first end and the second end are respectively used for adapting to samples with different specifications; the supporting roller 20 is movably connected with the supporting roller frame 17 through a connecting assembly, the connecting assembly can move between a first position and a second position, and under the condition that the connecting assembly is located at the first position, the supporting roller 20 is attached to the supporting roller frame 17; with the linkage assembly in the second position, the roller 20 is separated from the roller housing 17 and is able to rotate about the axis of the linkage assembly.

Specifically, the support roller 20 has opposite first and second ends, one of which is larger in size than the other, and one of which is used to support a specimen when performing a test. The first end and the second end are both arc-shaped, for example, the longitudinal sections of the first end and the second end can be both semicircular or elliptical, and the first end and the second end have different sizes and are used for bearing samples with different thicknesses. For example, the first end may have a diameter dimension of 2mm for carrying thicker samples and the second end may have a diameter dimension of 0.5mm for carrying thinner samples.

One end of the connecting assembly is connected with the supporting roller 20, the other end of the connecting assembly is connected with the supporting roller frame 17, and under the condition that the connecting assembly is located at the first position, the supporting roller 20 is attached to the supporting roller frame 17, so that the bending test can be performed on the sample. When bending test is carried out on samples with different thicknesses, for example, the first end of the support roller 20 faces upwards and is used for bearing thicker samples; the connecting assembly is moved to the second position, the supporting roller 20 is separated from the supporting roller frame 17, the supporting roller 20 is rotated by 180 degrees, the second end of the supporting roller 20 faces upwards, the connecting assembly is moved to the first position, the supporting roller 20 is attached to the supporting roller frame 17, and at the moment, the supporting roller 20 is used for bearing a thin sample.

The supporting roller 20 is movably connected with the supporting roller frame 17 through the connecting assembly, the supporting roller 20 is attached to or separated from the supporting roller frame 17 through movement of the connecting assembly, the first end or the second end of the supporting roller 20 faces upwards through the rotating supporting roller 20, samples with different thicknesses are borne, the supporting roller 20 with different sizes and specifications does not need to be detached, operation is convenient, labor intensity is low, and detection efficiency is improved.

The embodiment of the utility model provides an in, the roller 20 passes through coupling assembling and 17 swing joint of roller frame, realizes the first end or the second terminal surface of roller 20 to the sample through rotatory roller 20 to adapt to the sample of different thickness, the simple operation is favorable to improving work efficiency.

As shown in fig. 1 and 3, in an alternative embodiment, the connecting assembly comprises a connecting rod 18 and an elastic member; one end of the connecting rod 18 is convexly provided with a limiting part along the outer wall thereof, and the other end of the connecting rod 18 is provided with an external thread; one side of the supporting roller 20, which is attached to the supporting roller frame 17, is provided with a threaded hole, the supporting roller frame 17 is provided with mounting holes penetrating through two opposite side surfaces of the supporting roller frame, and the mounting holes comprise a groove and a third through hole which are sequentially communicated; the connecting rod 18 sequentially penetrates through the groove and the third through hole to be in threaded connection with the threaded hole, one end of the elastic piece is abutted against the groove bottom of the groove, and the other end of the elastic piece is abutted against one side, facing the groove bottom, of the limiting part.

Specifically, a threaded hole is formed in one side, attached to the supporting roller frame 17, of the supporting roller 20, a mounting hole penetrating through two opposite side faces of the supporting roller frame 17 is formed in the supporting roller frame 17, a first side face of the supporting roller frame 17 is defined as one side, far away from the supporting roller 20, of the supporting roller frame 17, a second side face of the supporting roller frame 17 is defined as one side, close to the supporting roller 20, of the supporting roller frame 17, a groove is formed by sinking along the first side face, a third through hole is formed by extending from the groove bottom of the groove to the second side face, the third through hole and the groove are coaxially arranged, and the diameter size of the hole wall of the third through hole is smaller than that of the groove wall of the groove.

The protruding spacing portion that is equipped with of one end of connecting rod 18 along its outer wall, spacing portion is the cylinder form, the size of spacing portion is greater than the size of third through-hole, the other end of connecting rod 18 is equipped with the external screw thread, the elastic component can be cylindrical spring 19, cylindrical spring 19 and connecting rod 18 looks adaptation, connecting rod 18 is located to cylindrical spring 19 cover, connecting rod 18 wears to establish behind recess and the third through-hole in proper order and the screw hole threaded connection of a roller 20, cylindrical spring 19's one end and the tank bottom looks butt of recess, cylindrical spring 19's the other end and the spacing portion are towards the one end looks butt of tank bottom, realize from this that a roller 20 and a roller frame 17's swing joint, connecting rod 18 is in the first position this moment.

When the support roller 20 needs to be adjusted, the two sides of the support roller 20 are held, the support roller 20 is pulled in the direction away from the support roller frame 17, the cylindrical spring 19 is compressed and deformed, the connecting rod 18 moves in the direction away from the support roller frame 17 along with the support roller 20, the connecting rod 18 moves to the second position, the support roller 20 is separated from the support roller frame 17, the support roller 20 can be rotated by 180 degrees at the moment, after the rotation angle of the support roller 20 is adjusted, the support roller 20 is loosened, the cylindrical spring 19 returns to the state before compression and deformation, the connecting rod 18 is located at the first position, and at the moment, the support roller 20 is attached to the support roller frame 17.

The embodiment of the utility model provides an in, the supporting roller 20 is equipped with the screw hole, supporting roller frame 17 is equipped with recess and third through-hole, connecting rod 18 wears to establish in proper order behind recess and the third through-hole with supporting roller 20's screw hole threaded connection, the one end of elastic component and the tank bottom looks butt of recess, the other end and the spacing portion looks butt of elastic component, through applying the pulling force to supporting roller 20, can realize supporting roller 20 and supporting roller frame 17's separation, can realize the rotation to supporting roller 20 fast, so as to adapt to the sample of different thickness, moreover, the steam generator is simple in structure, and the operation is convenient.

As shown in fig. 1 and fig. 3, in an alternative embodiment, a limiting structure is provided between the supporting roller 20 and the opposite wall surface of the supporting roller frame 17, and the limiting structure includes: the limiting protrusion is matched with the limiting groove; the limiting protrusion and the limiting groove are respectively arranged on the supporting roller 20 and the supporting roller frame 17.

Specifically, the supporting roller 20 is provided with two or more limiting protrusions on one side facing the supporting roller frame 17, the supporting roller frame 17 is provided with two or more limiting grooves on one side facing the supporting roller frame 20, the limiting grooves are matched with the limiting protrusions, and after the supporting roller 20 is attached to the opposite wall surface of the supporting roller frame 17, the two limiting protrusions are located in the two limiting grooves, so that the supporting roller 20 can be prevented from rotating.

Or one side of the supporting roller 20 facing the supporting roller frame 17 is provided with two or more limiting grooves, one side of the supporting roller frame 17 facing the supporting roller 20 is provided with a limiting bulge, and after the supporting roller 20 is attached to the opposite wall surface of the supporting roller frame 17, the two limiting bulges are positioned in the two limiting grooves.

The embodiment of the utility model provides an in, after the relative wall laminating of a roller 20 and a roller frame 17, spacing arch is arranged in spacing recess, can prevent effectively that a roller 20 from taking place to rotate, ensures the steadiness that a roller 20 and a roller frame 17 are connected.

As shown in fig. 1, 4 and 5, in an alternative embodiment, the roller mechanism further comprises a clamping assembly; the clamping assembly comprises a screw 23 and two clamping plates 21, one side of the supporting roller frame 17, which is far away from the support, is provided with a limiting block, two limiting grooves are formed by extending outwards along two opposite sides of the limiting block, and the limiting block is provided with a fourth through hole which penetrates through the two opposite sides of the limiting block; the one end of screw rod 23 is equipped with the levogyration screw thread section, and the other end of screw rod 23 is equipped with the dextrorotation screw thread section, and the fourth through hole is worn to establish by the screw rod, and two grip blocks 21 are connected with levogyration screw thread section and dextrorotation screw thread section one-to-one, and two grip blocks 21 and two spacing groove looks adaptations, two grip blocks 21 are used for the centre gripping sample.

Specifically, the top of the supporting roller frame 17 is provided with two limiting grooves, a limiting block is arranged between the two limiting grooves in a clamping mode, the two limiting grooves are symmetrically arranged relative to the limiting block, the limiting block is provided with a fourth through hole penetrating through the two opposite side faces of the limiting block, and the axis of the fourth through hole is perpendicular to the axis of the rotating shaft 8.

The width of the clamping plates 21 is the same as the groove width of the limiting grooves, the two clamping plates 21 correspond to the two limiting grooves one by one, the two clamping plates 21 are used for clamping a sample, and the distance between the inner wall surfaces of the two clamping plates 21 is adjusted according to the width of the sample. The screw 23 penetrates through the fourth through hole, one clamping plate 21 is in threaded connection with the left-handed thread section, the other clamping plate 21 is in threaded connection with the right-handed thread section, the screw 23 is rotated in the clockwise direction, and the two clamping plates 21 move towards the direction close to the limiting block at the same time; the screw 23 is rotated along the anticlockwise direction, the two clamping plates 21 move towards the direction far away from the limiting block, and the quick adjustment of the distance between the two clamping plates 21 is realized by rotating the screw 23, so that the longitudinal axis of the sample coincides with the longitudinal axes of the two support rollers.

Furtherly, the top surface of stopper is equipped with the screw hole, and screw hole and fourth through-hole intercommunication, and the middle part of screw rod 23 is equipped with the annular groove, and tight set screw 25 wears to establish and laminates mutually with the cell wall of annular groove behind the screw hole, carries out axial positioning to screw rod 23, ensures that screw rod 23 is rotatable, nevertheless can not remove along the axis direction.

The embodiment of the utility model provides an in, two grip blocks 21 and two spacing groove one-to-one, two grip blocks 21 respectively with the left-handed screw section and the right-handed screw section threaded connection of screw rod 23, through rotatory screw rod 23, realize the adjustment of the interval of two grip blocks 21 to adapt to the sample of different widths, simple structure, simple operation.

In an alternative embodiment, as shown in fig. 4, the clamping assembly further comprises a stop plate 24, the stop plate 24 being provided at the end of the screw 23.

Specifically, the one end of screw rod 23 is equipped with handle 22, and handle 22 can be the hand wheel, is convenient for carry out the rotation operation to screw rod 23, and the other end of screw rod 23 is equipped with baffle 24, and baffle 24 can be dismantled with screw rod 23 and be connected, and the in-process that moves to the direction of keeping away from the stopper simultaneously at two grip blocks 21 can prevent that grip block 21 from droing from screw rod 23.

The embodiment of the utility model provides an in, the tip of screw rod 23 is equipped with baffle 24, can prevent that grip block 21 from coming off from screw rod 23, ensures the safety in utilization of centre gripping subassembly.

As shown in fig. 6 and 7, in an alternative embodiment, the ram mechanism includes a ram connector 26, a connecting plate 29, a connecting block 31, and two clamping blocks 30; one end of the pressure head connecting piece 26 is used for being connected with the testing machine, the other end of the pressure head connecting piece 26 is connected with the connecting plate 29, and the two clamping blocks 30 are arranged on two sides of the connecting plate 29; the both ends of connecting block 31 are equipped with first pressure head and second pressure head respectively, and connecting block 31 presss from both sides and locates between the inner wall of two grip blocks 30, and connecting block 31 rotates with two grip blocks 30 to be connected.

Specifically, one end of the pressure head connecting piece 26 is connected with a pressure mechanism on a movable cross beam of the testing machine, the other end of the pressure head connecting piece 26 is connected with the connecting plate 29 through a second positioning pin 28, the second positioning pin 28 is a cylindrical positioning pin, and a second locking nut 27 is installed in the middle area of the pressure head connecting piece 26 and used for preventing the pressure head connecting piece 26 from shaking. Two clamping blocks 30 are provided on both sides of the connecting plate 29, and the area between the two clamping blocks 30 is used to clamp the connecting block 31.

The two ends of the connecting block 31 are respectively provided with a first pressure head and a second pressure head, the first pressure head and the second pressure head are different in size, the first pressure head and the second pressure head are used for applying loads to samples with different thicknesses, the first pressure head is defined to be used for applying loads to thicker samples, and the second pressure head is used for applying loads to thinner samples.

The two clamping blocks 30 are provided with through holes, the connecting block 31 is also provided with through holes, the pressure head rotating shaft 32 penetrates through the through holes of the two clamping blocks 30 and the through holes of the connecting block 31, and the rotating connection of the connecting block 31 and the clamping blocks 30 is achieved. Two pits are sequentially arranged along the length direction of the connecting block 31, the two pits are respectively close to the first pressure head and the second pressure head, and a threaded hole is formed in one clamping block 30.

When applying load to thicker sample, the rotary connecting block 31 makes first pressure head and sample relative back, and wave pearl screw 33 wears to establish the screw hole on the grip block 30, and wave pearl screw 33 tip marble pressure is in the pit that is close to the second pressure head end, realizes the fixed to first pressure head, further exerts load to the sample through first pressure head. When a load needs to be applied to a thin sample, the wave bead screw 33 is screwed out, the second pressure head is opposite to the sample through the rotary connecting block 31, the wave bead screw 33 penetrates through a threaded hole in the clamping block 30, the end portion of the wave bead screw 33 presses a marble in a concave pit close to the first pressure head end, the second pressure head is fixed, and the load is further applied to the sample through the second pressure head.

The embodiment of the utility model provides an in, connecting block 31's both ends are equipped with first pressure head and second pressure head respectively, connecting block 31 presss from both sides and locates between two grip blocks 30, connecting block 31 rotates with two grip blocks 30 to be connected, swivelling joint piece 31 makes first pressure head or second pressure head relative with the sample to adapt to the sample of different thickness, fix connecting block 31 through ripples pearl screw 33, can realize the adjustment of pressure head fast and fix, moreover, the steam generator is simple in structure, and the simple operation is favorable to improving work efficiency.

The use of the bending performance detection device is specifically explained below, the support roller mechanism, the driving mechanism and the support are assembled, the support is connected with the base of the testing machine through the support connecting piece 1, and the pressure head mechanism is connected with the cross beam of the testing machine through the pressure head connecting piece 26; rotating the support roller 20 such that the first end or the second end of the support roller 20 is opposed to the sample, depending on the thickness of the sample; rotating the hand wheel 14, adjusting the distance between the two support rollers 20, and rotating the screw rod 23 to ensure that the longitudinal axis of the sample is superposed with the longitudinal axes of the two support rollers 20; rotating the connecting block 31 so that the first pressing head or the second pressing head is opposite to the sample; and then setting the speed of the testing machine to be 10mm/min for testing until the sample is damaged, and calculating the bending strength of the sample through test software, so that the operation is convenient and fast, and the detection efficiency is high.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A bending property detection apparatus, comprising: the device comprises a support, a supporting roller mechanism, a driving mechanism and a pressure head mechanism;

the two supporting roller mechanisms are arranged at intervals along the length direction of the support, each supporting roller mechanism comprises a supporting roller frame and supporting rollers, the supporting rollers are arranged on one side of the supporting roller frame, the two supporting rollers of the two supporting roller mechanisms are arranged oppositely, and the two supporting rollers are used for supporting a sample;

the driving mechanism drives one of the two supporting roller frames to move along a first direction, and the other supporting roller frame to move along a second direction, wherein the first direction is opposite to the second direction;

the support is used for supporting the supporting roller mechanism and the driving mechanism, and the pressure head mechanism is used for applying load to the sample.

2. The bending performance detecting apparatus according to claim 1, wherein the driving mechanism includes a driving gear, a driven gear, a rotating shaft, a guide shaft, and a driving member;

the two rotating shafts are arranged at intervals along the length direction of the support, the two rotating shafts are coaxially arranged, and the two support roller frames are respectively in threaded connection with the two rotating shafts; the supporting roller frames are provided with first through holes, the first through holes are matched with the guide shafts, the guide shafts sequentially penetrate through the first through holes of the two supporting roller frames, and the axes of the guide shafts are parallel to the axis of the rotating shaft;

the driven gear is arranged at one end of the rotating shaft, the driven gear is arranged oppositely, the driven gear is meshed with the driving gear and is connected with the driving gear, and the driving piece is used for driving the driving gear to rotate.

3. The bending performance testing apparatus according to claim 2, wherein the support includes a bottom plate, side plates, a sealing plate, and a fixing plate;

the two side plates are arranged on two sides of the bottom plate, and the two sealing plates are respectively arranged at two ends of the bottom plate and two ends of the two side plates;

the fixing plate is arranged on the bottom plate and provided with a second through hole; one end of the rotating shaft is rotatably connected with the sealing plates, the other end of the rotating shaft penetrates through the second through hole to be connected with the driven gear, and two ends of the guide shaft are respectively connected with the two sealing plates.

4. The bending performance detecting apparatus according to claim 3, further comprising a stand connecting member;

one end of the support connecting piece is connected with the bottom plate, and the other end of the support connecting piece is used for being connected with a testing machine.

5. The bending performance detecting apparatus according to claim 1, wherein the roller supporting mechanism further includes a connecting member;

the support roller is provided with a first end and a second end which are opposite to each other, and the first end and the second end are respectively used for adapting to samples with different specifications;

the supporting roller is movably connected with the supporting roller frame through the connecting assembly, the connecting assembly can move between a first position and a second position, and the supporting roller is attached to the supporting roller frame under the condition that the connecting assembly is located at the first position; when the connecting assembly is located at the second position, the supporting roller is separated from the supporting roller frame and can rotate around the axis of the connecting assembly.

6. The bending performance detecting apparatus according to claim 5, wherein the connecting member includes a connecting rod and an elastic member;

one end of the connecting rod is convexly provided with a limiting part along the outer wall of the connecting rod, and the other end of the connecting rod is provided with an external thread; one side of the support roller, which is attached to the support roller frame, is provided with a threaded hole, the support roller frame is provided with mounting holes penetrating through two opposite side surfaces of the support roller frame, and the mounting holes comprise a groove and a third through hole which are sequentially communicated;

the connecting rod is sequentially penetrated through the groove and the third through hole and is in threaded connection with the threaded hole, one end of the elastic piece is abutted against the groove bottom of the groove, and the other end of the elastic piece is abutted against one side of the limiting part facing the groove bottom.

7. The bending performance detection device according to claim 5, wherein a limiting structure is provided between the support roller and the opposite wall surface of the support roller frame, and the limiting structure comprises: the limiting protrusion is matched with the limiting groove; the limiting protrusion and the limiting groove are respectively arranged on the supporting roller and the supporting roller frame.

8. The bending performance detecting apparatus according to claim 1, wherein the roller supporting mechanism further includes a gripping member;

the clamping assembly comprises a screw and two clamping plates, a limiting block is arranged on one side of the supporting roller frame, which is far away from the support, two limiting grooves are formed by extending outwards along two opposite sides of the limiting block, and a fourth through hole penetrating through the two opposite sides of the limiting block is formed in the limiting block;

the one end of screw rod is equipped with the levogyration screw thread section, the other end of screw rod is equipped with the dextrorotation screw thread section, the screw rod is worn to establish the fourth through-hole, two grip blocks with the levogyration screw thread section with the dextrorotation screw thread section one-to-one is connected, two grip blocks with two spacing groove looks adaptations, two grip blocks are used for the centre gripping the sample.

9. The bending performance detecting apparatus according to claim 8, wherein the clamping assembly further comprises a stopper provided at an end of the screw.

10. The bending performance testing apparatus according to claim 1, wherein the ram mechanism includes a ram connecting member, a connecting plate, a connecting block, and two clamping blocks;

one end of the pressure head connecting piece is used for being connected with the testing machine, the other end of the pressure head connecting piece is connected with the connecting plate, and the two clamping blocks are arranged on two sides of the connecting plate;

the both ends of connecting block are equipped with first pressure head and second pressure head respectively, the connecting block clamp is located between the inner wall of two grip blocks, the connecting block with two grip blocks rotate to be connected.

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