CN212586152U

CN212586152U - Electric bending resistance testing machine

Info

Publication number: CN212586152U
Application number: CN202021176729.1U
Authority: CN
Inventors: 蔡心映; 徐龙
Original assignee: Dongguan Guanfeng Concrete Co ltd
Current assignee: Dongguan Guanfeng Concrete Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-02-23
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to the technical field of concrete bending strength detection equipment, in particular to an electric bending resistance testing machine, which comprises a base and a testing machine body arranged on the base, wherein a threaded rod connected with the lower end of the testing machine body in a threaded manner is arranged on the base, a hand wheel is fixedly connected on the threaded rod, a lower clamp is arranged at the upper end of the threaded rod, an upper clamp is arranged on the testing machine body and is positioned above the lower clamp, a chip groove is arranged on the base, a cleaning brush is arranged at one end in the chip groove, both ends of the cleaning brush can be detachably connected with an installation block, a discharge hole is arranged at one side of the bottom of the chip groove, which is far away from the cleaning brush, a sliding hole is arranged on one installation block, a guide piece for guiding the cleaning brush is arranged between the chip groove and the other installation block, a moving threaded rod is arranged at one side in the chip groove, the other end of the movable threaded rod penetrates through the sliding hole and is connected with a groove wall bearing of the chip groove.

Description

Electric bending resistance testing machine

Technical Field

The utility model belongs to the technical field of the anti concrete bending strength check out test set's technique and specifically relates to an electronic bending test machine is related to.

Background

The electric bending strength tester for cement is mainly used for testing the bending strength of cement soft-refining mortar in cement factories, building construction units and scientific research units in all relevant professional colleges and universities, and can be used for testing the bending strength of other non-metal brittle materials.

For example, chinese patent with patent publication No. CN206450518U discloses an electric bending resistance testing machine, which comprises a base, a supporting column fixed on the base, and a bracket fixed on the supporting column, wherein one end of the bracket is fixed with a support, the support is rotatably connected with a scale, one side of the scale is slidably sleeved with a sliding weight, the other end of the scale is slidably sleeved with a sliding weight, one end of the scale is provided with a balance weight and a motor is fixed, a lead screw is fixed on an output shaft of the motor, the lead screw penetrates through the sliding weight and is in threaded connection with the sliding weight, a rotation angle indicating plate is installed on the scale, an indicating needle matched with the rotation angle indicating plate is arranged on the support, an upper pulling main knife rest abutted against the scale is arranged below the scale, the upper pulling main knife rest is connected with an upper pulling auxiliary knife rest, a lower pulling main knife rest is fixed on the bracket, the electric bending resistance testing machine further comprises a, an upper clamp is fixed on a lower pull auxiliary tool rest, a lower clamp matched with the upper clamp is arranged on a base, a placing box is arranged on the base, a bottom plate in the placing box is placed, guide wheels are respectively installed on two sides of the placing box, pull ropes are respectively connected with two sides of the bottom plate, the pull ropes on two sides walk around the guide wheels on the same side and are connected onto a moving block, a driving screw is connected on the base in a circumferential rotating manner, a moving block threaded rod is connected onto a driving threaded rod, and a limiting groove for limiting the circumferential rotation of the moving block is formed in the base. So the sample is placed on the bottom plate of placing the case, when needs take out the sample, rotates the screw rod, drives the stay cord and removes, makes the bottom plate rebound, drives the top that the case was placed to the sample part salient, makes things convenient for the sample to take.

The above prior art solutions have the following drawbacks: when the anti-fracture test is carried out on a cement sample during working, the sample can be fractured, fractured sample fragments can be scattered on the hand wheel and the base, a large amount of fragments on the base below the hand wheel and the hand wheel need to be cleaned by tools after each use, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an electronic bending test machine, it has the clastic advantage of convenient clearance sample.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an electric anti-bending testing machine comprises a base and a testing machine body arranged on the base, wherein a lifting threaded rod in threaded connection with the lower end of the testing machine body is arranged on the base, a hand wheel is fixedly connected onto the lifting threaded rod, a lower clamp is arranged at the upper end of the lifting threaded rod, an upper clamp is arranged on the testing machine body and is positioned above the lower clamp, a chip groove is arranged on the base and is positioned under the hand wheel, a cleaning brush is arranged at one end in the chip groove, mounting blocks are detachably connected with the two ends of the cleaning brush, a sliding hole is formed in each mounting block, a guide piece for guiding the cleaning brush is arranged between the chip groove and the other mounting block, a movable threaded rod is arranged on one side in the chip groove and is arranged along the length direction of the chip groove, the one end of portable threaded rod is connected with and is used for the drive portable threaded rod pivoted driving piece, portable threaded rod's the other end runs through the slide opening and with a chip groove cell wall bearing is connected, the chip groove tank bottom is kept away from one side of cleaning brush is provided with the bin outlet, the bin outlet runs through extremely outside the base.

Through adopting above-mentioned technical scheme, add the chip groove on the base, make the sample piece directly drop to the chip groove in, so that people clear up, add cleaning brush and bin outlet simultaneously in the chip groove, when utilizing driving piece drive removal threaded rod to rotate, because remove the hole threaded connection that slides on threaded rod and the installation piece, cleaning brush can dismantle with the installation piece and be connected, so make cleaning brush remove in the chip groove, make the piece clean to the bin outlet and discharge from the bin outlet, thereby be convenient for clear up the sample piece.

The present invention may be further configured in a preferred embodiment as: the driving piece is a servo motor, the servo motor is arranged on the base, and an output shaft of the servo motor is fixedly connected with one end of the movable threaded rod.

Through adopting above-mentioned technical scheme, servo motor's setting improves the automatic ability of testing machine, alleviates staff manual operation's burden, can be more convenient when making the staff clear up the piece.

The present invention may be further configured in a preferred embodiment as: the guide is the guide bar, the guide bar set up in the chip groove is kept away from the one end of removal threaded rod, the guide bar is followed the length direction of chip groove sets up, keeps away from remove the threaded rod one be provided with on the installation piece with the guiding hole that the guide bar corresponds, the guide bar runs through the guiding hole and with the guiding hole cooperation of sliding.

Through adopting above-mentioned technical scheme, the setting of guide bar has played the guide effect to the cleaning brush, makes the cleaning brush be difficult for rotating along with removing the threaded rod, under the effect of guide bar and guiding hole, makes the cleaning brush keep linear motion state at the chip groove to the piece in the chip groove is swept to the cleaning brush.

The present invention may be further configured in a preferred embodiment as: the cleaning brush is characterized in that inserting blocks are arranged at two ends of the cleaning brush, inserting grooves corresponding to the inserting blocks are formed in the mounting blocks, the inserting grooves are formed in the height direction of the mounting blocks along the mounting blocks, the inserting blocks are matched with the inserting grooves in an inserting mode, and locking assemblies used for locking and unlocking the inserting blocks are arranged between the mounting blocks and the inserting blocks.

Through adopting above-mentioned technical scheme, the inserted block is pegged graft with the slot and is cooperated to utilize locking and unblock inserted block of locking subassembly, so be convenient for cleaning brush installation and dismantlement on two installation pieces, so that cleaning brush's change.

The present invention may be further configured in a preferred embodiment as: the locking assembly comprises a positioning pin, a spring and a positioning hole, the positioning pin is arranged on one groove wall of the insertion groove, a positioning groove for the positioning pin to extend out and retract is formed in one groove wall of the insertion groove, which is far away from the cleaning brush, the spring is arranged on the positioning pin and at the bottom of the positioning groove, the positioning hole is formed in the insertion block, and the positioning pin is in inserting fit with the positioning hole.

By adopting the technical scheme, when the insertion block is required to be fixed in the insertion hole, the positioning pin is retracted into the positioning groove, the spring is compressed, the insertion block is inserted into the insertion groove until the positioning pin is aligned with the positioning hole, and the positioning pin is automatically inserted into the positioning hole under the action of the spring due to the elastic restoring force of the spring, so that the insertion block is locked and fixed in the insertion groove; when the plug-in block is required to be taken down from the slot, the positioning pin is only required to be retracted into the positioning groove again, and the plug-in block can be separated from the slot.

The present invention may be further configured in a preferred embodiment as: the locating pin is connected with a shifting block, a groove wall of the locating groove is provided with a through groove which is arranged in a penetrating mode, the through groove is arranged along the length direction of the locating groove, the shifting block penetrates through the through groove and extends out of the through groove, and the shifting block is matched with the through groove in a sliding mode.

Through adopting above-mentioned technical scheme, the setting of shifting block is convenient for the staff to stir the locating pin to in the locating pin retraction constant head tank.

The present invention may be further configured in a preferred embodiment as: the base is kept away from the one end of testing machine body is provided with collects the box, it is located to collect the box discharge gate department, the both ends of collecting the box all are provided with the sand grip that slides, just the sand grip that slides is followed the length direction who collects the box sets up, set up in two location sand grips on the base, two the location sand grip is located respectively the both sides of discharge gate, two the both sides surface that the location sand grip is relative all is provided with the groove of sliding, just the groove of sliding is followed the length direction of location sand grip runs through the setting, the sand grip that slides with the cooperation of sliding in the groove of sliding.

Through adopting above-mentioned technical scheme, the sand grip that slides and the cooperation of sliding in groove, the staff of being convenient for will collect the box and take out and install simple and convenient.

The present invention may be further configured in a preferred embodiment as: the sliding convex strip slides into one end of the sliding groove and the bottom of the sliding groove are provided with magnet pieces which are mutually attracted.

Through adopting above-mentioned technical scheme, the setting up of magnet piece can make the sand grip that slides slide and can be more stable in sliding the groove, and difficult not hard up because of the collision drops.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the chip groove is additionally arranged on the base, so that sample chips directly fall into the chip groove to be convenient for people to clean, the cleaning brush and the discharge opening are additionally arranged in the chip groove, when the driving piece is used for driving the threaded rod to rotate, the threaded rod is in threaded connection with the sliding hole in the mounting block, and the cleaning brush is detachably connected with the mounting block, so that the cleaning brush moves in the chip groove, the chips are cleaned to the discharge opening and are discharged from the discharge opening, and the sample chips are convenient to clean;

2. the arrangement of the guide rod has a guide effect on the cleaning brush, so that the cleaning brush keeps a linear motion state in a chip groove, and the cleaning brush can clean chips in the chip groove;

3. the insertion blocks are in insertion fit with the insertion slots, and the locking and unlocking insertion blocks of the locking assembly are utilized, so that the cleaning brushes are convenient to mount and dismount on the two mounting blocks, and the cleaning brushes are convenient to replace;

4. the sand grip that slides and the cooperation that slides in the groove of sliding, the staff of being convenient for will collect the box take out and with the installation, simple and convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of a part of the structure of the base of the present invention after being cut open;

FIG. 3 is a schematic view of the assembly relationship between the cleaning brush and the mounting block of the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3.

In the figure, 1, a base; 2. a testing machine body; 3. lifting a threaded rod; 4. an upper clamp; 5. a lower clamp; 6. a hand wheel; 7. a chip groove; 8. a nozzle; 9. a cleaning brush; 10. positioning pins; 11. a spring; 12. positioning holes; 13. mounting blocks; 14. inserting a block; 15. a slot; 16. positioning a groove; 17. shifting blocks; 18. a through groove; 19. moving the threaded rod; 20. a servo motor; 21. a guide bar; 22. a collection box; 23. sliding the convex strips; 24. positioning the convex strip; 25. a sliding groove; 26. a magnet piece; 27. a sliding hole; 28. a guide hole; 29. a protective cover; 30. a support plate; 31. supporting convex strips; 32. a handle; 33. supporting legs; 34. a discharge outlet; 35. and (4) mounting the groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an electronic bending test machine, including base 1 and testing machine body 2, testing machine body 2 installs on base 1, and supporting legs 33 has all been welded at four side angles of base 1 bottom. Simultaneously, the base 1 is provided with the lifting threaded rod 3 and the supporting plate 30 which are vertically arranged from top to bottom, one end of the lifting threaded rod 3 close to the base 1 is connected to the supporting plate 30 in a threaded mode, the other end of the lifting threaded rod 3 is provided with the lower clamp 5, the lower end of the testing machine body 2 is provided with the upper clamp 4, and the upper clamp 4 is located above the lower clamp 5. A hand wheel 6 is fixedly connected to the lifting threaded rod 3, when the hand wheel 6 is rotated, the lifting threaded rod 3 rotates and rises, the lower clamp 5 moves upwards and clamps a sample with the upper clamp 4, and therefore the sample is subjected to an anti-bending test.

Referring to fig. 1 and 2, after the sample is broken, a large amount of chips fall onto the base 1 and the hand wheel 6, so that the chips on the hand wheel 6 and the base 1 can be cleaned conveniently, a chip discharge groove 7 is formed in the base 1, and the chip discharge groove 7 is located right below the hand wheel 6. The support plate 30 is welded to the notch of the flute 7, and the support plate 30 is disposed along the width direction of the flute 7. Simultaneously, support sand grip 31 has all been welded to the both sides of chip groove 7 notch, support sand grip 31 and set up along the length direction of chip groove 7, each support sand grip 31 is kept away from 1 side surface of base and is all installed a plurality of nozzles 8, in this embodiment, the nozzle 8 quantity on each support sand grip 31 is four, and four nozzles 8 set up along the equidistance of the length direction who supports sand grip 31, each nozzle 8 is through the ventilation unit intercommunication with outside, and the air-out direction of the nozzle 8 of both sides is relative and establish, make the piece be difficult for dropping outside chip groove 7 at the in-process skew that drops, also can make the piece that drops to on hand wheel 6 blow off to chip groove 7 in. A discharge opening 34 is formed in one side of the bottom of the chip groove 7, and the discharge opening 34 penetrates out of the base 1. In addition, one end in the chip groove 7 is provided with a cleaning brush 9, the brush hair of the cleaning brush 9 is abutted against the bottom of the chip groove 7, and the cleaning brush 9 is arranged along the width direction of the chip groove 7.

Referring to fig. 3 and 4, the two ends of the cleaning brush 9 may be detachably connected with mounting blocks 13, in this embodiment, the two ends of the cleaning brush 9 are welded with insertion blocks 14, correspondingly, one end of each of the two mounting blocks 13 close to the cleaning brush 9 is provided with a slot 15, and the slot 15 is arranged along the height direction of the mounting block 13 from a surface of the mounting block 13 far away from the chip discharge groove 7. Each insert 14 is in a plug-in fit with a corresponding slot 15, whereby the cleaning brush 9 is mounted on the mounting block 13 for easy replacement of the cleaning brush 9 by a worker.

In addition, a locking component for locking and unlocking the insertion block 14 is arranged between each mounting block 13 and the insertion block 14, the locking component comprises a positioning pin 10, a spring 11 and a positioning hole 12, the positioning pin 10 is arranged on the mounting block 13, a positioning groove 16 for extending and retracting the positioning pin 10 is formed in one groove wall of the slot 15, which is far away from the cleaning brush 9, the spring 11 is arranged at the bottoms of the positioning pin 10 and the positioning groove 16, and two ends of the spring 11 are respectively and fixedly connected to the two side surfaces of the positioning pin 10, which are opposite to the bottoms of the positioning groove 16. The positioning hole 12 is formed in the surface of one side, far away from the cleaning brush 9, of the insertion block 14, when the insertion block 14 is inserted into the insertion slot 15, the positioning pin 10 is aligned with the positioning hole 12, the positioning pin 10 is in insertion fit with the positioning hole 12 under the action of elastic restoring force of the spring 11, and therefore the insertion block 14 is not prone to loosening and disengaging from the insertion slot 15. In addition, one side skin weld of locating pin 10 has shifting block 17, and a cell wall of constant head tank 16 is offered and is the logical groove 18 that runs through the setting, and leads to the length direction setting of groove 18 along constant head tank 16, and outside shifting block 17 runs through logical groove 18 and stretches out logical groove 18, shifting block 17 and logical groove 18 cooperation of sliding to in the staff stirs locating pin 10, make things convenient for the staff to insert slot 15 with inserted block 14.

Referring to fig. 2 and 3, a moving threaded rod 19 is provided at one side inside the flute 7, and the moving threaded rod 19 is provided along the length direction of the flute 7. Meanwhile, a sliding hole 27 which is horizontally arranged and is arranged in a penetrating manner is formed in one mounting block 13, and one end of the movable threaded rod 19 is connected with a driving piece which is used for driving the threaded rod to rotate, wherein the driving piece is a servo motor 20 in the embodiment. Mounting groove 35 has been seted up to a lateral wall of base 1, and servo motor 20 fixed mounting is in base 1's mounting groove 35, and the available apron of mounting groove 35 notch is covered and is closed. An output shaft of the servo motor 20 penetrates through the mounting groove 35 and the chip groove 7 to be fixedly connected with the movable threaded rod 19. The other end of the movable threaded rod 19 penetrates through the sliding hole 27 and is connected with a groove wall bearing of the chip groove 7. A guide piece for guiding the cleaning brush 9 is arranged between the chip groove 7 and the other mounting block 13, the guide piece is a guide rod 21, the guide rod 21 is fixedly mounted on one side, far away from the movable threaded rod 19, in the chip groove 7, and the guide rod 21 is arranged along the length direction of the chip groove 7. A guide hole 28 corresponding to the guide rod 21 is formed in the mounting block 13 far away from the threaded rod, the guide rod 21 penetrates through the guide hole 28 and is in sliding fit with the guide hole 28, so that the cleaning brush 9 is guided, and the cleaning brush 9 is enabled to do linear motion in the chip groove 7. In addition, in order to prevent the movable threaded rod 19 from being jammed during the collection of the debris, a protective cover 29 (see fig. 1) for covering the movable threaded rod 19 is installed in the chip discharge groove 7.

Referring back to fig. 2, in addition, the one end of base 1 that is kept away from testing machine body 2 is provided with the collection box 22 that is used for collecting the sample piece, collects box 22 and is located bin outlet 34 department, and the both ends of collecting box 22 all have welded slide protruding strip 23, and slide protruding strip 23 sets up along the length direction of collecting box 22. The base 1 is welded with two positioning convex strips 24, and the two positioning convex strips 24 are respectively positioned on two sides of the discharge port 34 and arranged along the width direction of the base 1. Two relative both sides surfaces of location sand grip 24 have all been seted up sliding groove 25, and sliding groove 25 sets up along the length direction of location sand grip 24 from one side surface of location sand grip 24, and sliding sand grip 23 and sliding groove 25 cooperation of sliding to the staff will collect box 22 and take out and install. Magnet pieces 26 which are mutually attracted are adhered to one end of the sliding convex strip 23 sliding into the sliding groove 25 and the bottom of the sliding groove 25, so that the sliding convex strip 23 is fixed in the sliding groove 25 and is not easy to slide off the base 1 due to collision. In addition, in order to take out the collecting box 22, an outer side wall of the collecting box 22 away from the bottom of the sliding groove 25 is welded with a handle 32 which is arranged in a cylindrical shape.

The implementation principle of the embodiment is as follows: set up chip groove 7 on base 1, make the sample piece directly drop to in chip groove 7, so that people clear up, set up cleaning brush 9 and bin outlet 34 in chip groove 7 simultaneously, when utilizing driving piece drive to remove threaded rod 19 and rotate, because remove threaded rod 19 and the 27 threaded connection of sliding hole on the installation piece 13, cleaning brush 9 can be dismantled with installation piece 13 and be connected, so make cleaning brush 9 remove in chip groove 7, make the piece clean to bin outlet 34 and discharge from bin outlet 34, thereby be convenient for clear up the sample piece.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an electronic bending test machine, includes base (1) and testing machine body (2) of setting on base (1), be provided with on base (1) with threaded connection's under testing machine body (2) lifting threaded rod (3), fixedly connected with hand wheel (6) on lifting threaded rod (3), the upper end of lifting threaded rod (3) is provided with down anchor clamps (5), be provided with on testing machine body (2) anchor clamps (4), just go up anchor clamps (4) and be located the top of anchor clamps (5) down, its characterized in that: be provided with chip groove (7) on base (1), just chip groove (7) are located under hand wheel (6), one end in chip groove (7) is provided with cleaning brush (9), all the dismantlement in both ends of cleaning brush (9) are connected with installation piece (13), one be provided with slide opening (27) on installation piece (13), chip groove (7) and another be provided with between installation piece (13) right the guide of cleaning brush (9) direction, one side in chip groove (7) is provided with removal threaded rod (19), just removal threaded rod (19) are followed the length direction setting of chip groove (7), the one end of removal threaded rod (19) is connected with and is used for driving threaded rod pivoted driving piece, the other end of removal threaded rod (19) runs through slide opening (27) and with a chip groove (7) cell wall bearing connection, one side of the groove bottom of the chip groove (7) is provided with a discharge hole (34), and the discharge hole (34) penetrates out of the base (1).

2. An electric bending tester according to claim 1, characterized in that: the driving piece is a servo motor (20), the servo motor (20) is arranged on the base (1), and an output shaft of the servo motor (20) is fixedly connected with one end of the movable threaded rod (19).

3. An electric bending tester according to claim 1, characterized in that: the guide is guide bar (21), guide bar (21) set up in chip groove (7) are kept away from the one end of removal threaded rod (19), guide bar (21) are followed the length direction of chip groove (7) sets up, keeps away from remove one of threaded rod (19) be provided with on installation piece (13) with guiding hole (28) that guide bar (21) correspond, guide bar (21) run through guiding hole (28) and with guiding hole (28) cooperation of sliding.

4. An electric bending tester according to claim 1, characterized in that: insert blocks (14) are arranged at two ends of the cleaning brush (9), each installation block (13) is provided with a slot (15) corresponding to the insert block (14), the slots (15) are arranged along the installation block (13) in the height direction of the installation block (13), the insert blocks (14) are matched with the slots (15) in an inserting mode, and a locking assembly used for locking and unlocking the insert blocks (14) is arranged between the installation block (13) and the insert blocks (14).

5. An electric bending tester according to claim 4, characterized in that: the locking assembly comprises a positioning pin (10), a spring (11) and a positioning hole (12), the positioning pin (10) is arranged on one groove wall of the slot (15), one groove wall of the slot (15) far away from the cleaning brush (9) is provided with a positioning groove (16) for the positioning pin (10) to extend out and retract, the spring (11) is arranged on the positioning pin (10) and the bottom of the positioning groove (16), the positioning hole (12) is arranged on the insert block (14), and the positioning pin (10) is in plug-in fit with the positioning hole (12).

6. An electric bending tester according to claim 5, wherein: be connected with shifting block (17) on locating pin (10), a cell wall of constant head tank (16) is provided with and is the logical groove (18) that run through the setting, just it follows to lead to groove (18) the length direction of constant head tank (16) sets up, shifting block (17) run through lead to groove (18) and stretch out outside leading to groove (18), shifting block (17) with lead to groove (18) cooperation of sliding.

7. An electric bending tester according to claim 1, characterized in that: keep away from base (1) the one end of testing machine body (2) is provided with collects box (22), it is located to collect box (22) bin outlet (34) department, the both ends of collecting box (22) all are provided with sand grip (23) of sliding, just sand grip (23) of sliding are followed the length direction who collects box (22) sets up, set up in two location sand grip (24) on base (1), two location sand grip (24) are located respectively the both sides of bin outlet (34), two the relative both sides surface of location sand grip (24) all is provided with groove (25) of sliding, just groove (25) of sliding are followed the length direction of location sand grip (24) runs through the setting, sand grip (23) of sliding with groove (25) cooperation of sliding.

8. An electric bending tester according to claim 7, wherein: the sliding convex strip (23) slides into one end of the sliding groove (25) and the groove bottom of the sliding groove (25) are provided with magnet pieces (26) which are mutually attracted.