CN211505049U - Anti testing machine that rolls over of cement - Google Patents

Abstract

The utility model relates to a cement bending resistance testing machine, which comprises a base, a supporting column, a supporting beam, a fixed rod and a scale, a clamping part is also arranged on the base, the clamping part comprises two upper pull rods and a lower press rod, the upper pull rods and the lower press rod are parallel to each other, a hanging rod perpendicular to the axial lead of the upper pull rods is rotatably connected on the supporting beam, the scale is rotatably connected with a connecting frame between the connecting part of the scale and the fixed rod and a motor, two upper pull fixing plates parallel to each other are rotatably connected on the hanging rod, the two upper pull rods are both connected between the two upper pull fixing plates, a screw rod is arranged on the base along the vertical direction, a bottom plate is rotatably connected on the screw rod through a bearing, the edge of the bottom plate is provided with a baffle surrounding the bottom plate; two taking openings are formed in the baffle, and sliding doors are arranged at the taking openings in a covering mode. The utility model discloses have the tiny granule that can block the department that splashes when the sample breaks through the baffle, and then other equipment in protection test personnel and the laboratory.

Description

Anti testing machine that rolls over of cement

Technical Field

The utility model belongs to the technical field of the technique that cement detected and specifically relates to an anti testing machine that rolls over of cement is related to.

Background

The anti-bending tester is a test device for testing the anti-bending performance of materials such as cement, mortar and concrete.

Chinese utility model patent with publication number CN206450518U and publication authorization date of 2017, 8.29 discloses an electric bending resistance testing machine, which comprises a base, a bracket fixed on the base, a bracket fixed at one end of the bracket, a scale rotatably connected on the bracket, a sliding weight sleeved at one side of the scale, a balance weight sleeved at the other end of the scale, a motor fixed at one end of the scale, a screw rod fixed on the output shaft of the motor, the screw rod passing through the sliding weight and connected with the sliding weight by screw thread, an upper pull main knife rest abutted against the scale is arranged below the scale, the upper pull main knife rest is connected with an upper pull auxiliary knife rest, a lower pull main knife rest fixed on the bracket, a lever with two ends respectively hinged with the upper pull auxiliary knife rest and the lower pull main knife rest, a lower pull auxiliary knife rest hinged on the lever, an upper clamp fixed on the lower pull auxiliary knife rest, a lower clamp matched with the upper clamp is arranged on the base, a placing box is arranged on the base. When the device works, firstly, the balance thallium is adjusted to be positioned at the initial position of the scale, the sample is placed into the upper clamp and the lower clamp, the upper clamp and the lower clamp are adjusted to clamp the sample, the scale generates an elevation angle, and the reading of the elevation angle is obtained through the indicating needle and the corner indicating plate; starting a motor to rotate a screw rod, linking the screw rod with the sliding weight to enable the sliding weight to move and load, breaking a sample when the sample is loaded to a certain numerical value, and reading scales on a scale to obtain a numerical value of the bending strength

In the above prior art, when a sample is broken, fine particles generated at the broken portion of the sample are easily splashed, and then easily cause injury to a tester or damage to other equipment in a laboratory.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cement bending resistance testing machine, can play the guard action to the tester in the laboratory or other test equipment when the sample rupture.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a cement bending resistance testing machine comprises a base, a supporting column fixedly arranged on the base, a supporting beam fixedly arranged on the supporting column along the horizontal direction, a fixing rod fixedly arranged at one end of the supporting beam and a scale rotatably connected to the fixing rod, wherein one end of the scale is fixedly connected with a motor, an output shaft of the motor is coaxially and fixedly connected with a lead screw, and the lead screw is parallel to the scale; the scale is connected with weights in a sliding manner, the weights are connected with the scale in a sliding manner and are in threaded connection with the lead screw, a clamping part is further arranged on the base and comprises two upper pull rods and a lower press rod, the upper pull rods and the lower press rod are parallel to each other, a hanging rod perpendicular to the axial lead of the upper pull rods is connected to the supporting beam in a rotating manner, a connecting frame is connected between the connecting part of the scale and the fixing rod and the motor in a rotating manner, one end, away from the supporting beam, of the hanging rod is connected to the lower end of the connecting frame in a rotating manner, two upper pull fixing plates which are parallel to each other are connected to the hanging rod in a rotating manner, the two upper pull rods are connected between the two upper pull fixing plates, a screw rod is arranged on the base in the vertical direction, a hand wheel is coaxially and fixedly connected to the screw rod, the screw rod is connected with a bottom, the lower pressing rod is arranged on the baffle; two taking openings are formed in the baffle, and sliding doors are arranged at the taking openings in a covering mode.

The motor drive screw rod takes place to rotate to drive the weight and slide along the scale, the weight can press the scale at the slip in-process and take place to rotate, and then upwards stimulates the pull-up fixed plate through the pull rod, thereby will await measuring the sample rupture through last pull rod and lower compression bar, thereby accomplish the bending test. When installing the sample, open the sliding door earlier to put into the sample from taking the mouth between upper pull rod and the lower pressure bar, can adjust the height of bottom plate and baffle through rotating the hand wheel, and then adjust the height of depression bar down, thereby make depression bar and upper pull rod press from both sides the tight sample that awaits measuring down. Through adopting above-mentioned technical scheme, after the examination appearance that awaits measuring is broken, the tiny granule of production can be blockked by the baffle, is difficult for splashing and causes the injury to operating personnel or other equipment in the laboratory to play the guard action to testing personnel and test equipment.

The present invention may be further configured in a preferred embodiment as: a sliding rail is arranged on the baffle plate along the vertical direction, and the sliding door is connected to the sliding rail in a sliding manner; when the sliding door covers the taking opening, the sliding door is abutted to the bottom plate.

Through adopting above-mentioned technical scheme, sliding door is along vertical direction and baffle sliding connection. Under the action of no external force, the sliding door can cover the operation opening under the action of self weight, so that an operator is not easy to open the sliding door due to mistaken touch, and the danger caused by particle splashing is further reduced.

The present invention may be further configured in a preferred embodiment as: the lower surface of the sliding door is provided with a plurality of pin grooves, and the bottom plate is fixedly provided with a plurality of pin columns embedded in the pin grooves.

Through adopting above-mentioned technical scheme, when the sliding door covers the mouth of taking, bolt post department wears to locate in the bolt groove, makes the sliding door can cover the mouth of taking more steadily to reduce the possibility that the granule flew out from the gap between baffle and the sliding door.

The present invention may be further configured in a preferred embodiment as: the upper end of sliding door is fixed with first magnetism portion of inhaling, the baffle is fixed with the second magnetism portion of inhaling that is used for adsorbing first magnetism portion above the slide rail.

Through adopting above-mentioned technical scheme, when packing into the holder with the sample or clearing up the holder, can upwards stimulate the sliding door and make the sliding door adsorb on second magnetism portion of inhaling through first magnetism to be convenient for install and clear up the sample.

The present invention may be further configured in a preferred embodiment as: the fixed roof that is provided with in top of baffle, seted up the perforation on the roof, the upper end of pull-up fixed plate is rotated through a connecting axle and is connected with a connecting block, the connecting block is worn to locate in the perforation, just the connecting block is kept away from the one end of pull-up fixed plate and is rotated and connect on the jib.

Through adopting above-mentioned technical scheme, the granule that splashes that produces when the sample breaks can receive blockking of roof when upwards splashing, is difficult for falling into in the motor or other parts of impact testing machine, helps prolonging the life of anti-fracture testing machine.

The present invention may be further configured in a preferred embodiment as: the bottom plate inclines downwards from the central position to one side close to the taking port, and a material receiving box used for receiving the scraps sliding out of the taking port is arranged on the bottom plate.

Through adopting above-mentioned technical scheme, piece and the tiny particle that fall on the bottom plate after anti-break test finishes can be along with the bottom plate to the mouth of taking to remove under self gravity, and piece and tiny particle can fall into material receiving box after opening the sliding door to be convenient for clear up the piece that produces after the sample breaks.

The present invention may be further configured in a preferred embodiment as: the side wall of the bottom plate is provided with a dovetail groove, the dovetail groove penetrates through the two sides of the bottom plate along the length direction of the material receiving box, the material receiving box is provided with a clamping and fixing strip, and the clamping and fixing strip is clamped in the dovetail groove.

Through adopting above-mentioned technical scheme, when needs clear up or change the butt joint magazine, can follow the length direction slip material receiving box of dovetail to can take off material receiving box from the bottom plate, be convenient for clear up the piece and the granule of accepting in the butt joint magazine.

The present invention may be further configured in a preferred embodiment as: and a stable connecting rod is fixedly arranged between the two material receiving boxes.

Connect two material receiving boxes through firm connecting rod, can make the material receiving box atress more even, difficult emergence is emptyd, and then makes the difficult unrestrained and pollution to the laboratory of piece and the granule of accepting in the material receiving box.

The present invention may be further configured in a preferred embodiment as: the base plate is further connected with a scraper in a sliding mode, two ends of the scraper are respectively abutted to the two oppositely arranged baffle plates, the scraper is connected with a pull rod in a rotating mode, and the pull rod is perpendicular to the scraper.

Through adopting above-mentioned technical scheme, can stimulate the pull rod and drive the scraper blade and slide on the bottom plate to scrape through the scraper blade and fall to the magazine with the piece and the tiny particle that fall on the bottom plate, thereby be convenient for clean the bottom plate after accomplishing the bending test.

The present invention may be further configured in a preferred embodiment as: one end of the pull rod, which is far away from the scraper, is fixedly provided with a connecting rod; the connecting rod is perpendicular to the pull rod.

Through adopting above-mentioned technical scheme, can drive the pull rod and drive the scraper blade through the pulling connecting rod and slide to be convenient for operating personnel controls the scraper blade.

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

1. the utility model discloses in, be connected with the bottom plate on the screw rod, surround on the bottom plate and be provided with the baffle, can stop the tiny particle that splashes when the sample breaks through the baffle and cause the injury to experimental operating personnel and other test equipment.

2. The utility model discloses in, set up the roof above the baffle, can protect the motor on this anti testing machine of rolling over to the life of the anti testing machine of rolling over of extension.

3. The utility model discloses in, set up material receiving box through the dovetail at the bottom plate both ends, be convenient for collect and clear up the piece and the granule of scattering on the bottom plate.

4. The utility model discloses in, sliding connection has the scraper blade on the bottom plate, can clear up more thoroughly piece and granule on to the bottom plate through the slip scraper blade.

Drawings

Fig. 1 is a schematic structural diagram of an anti-bending testing machine in an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic structural view of the clamping portion in the embodiment of the present invention.

In the figure, 11, the base; 12. a support pillar; 13. a support beam; 14. fixing the rod; 15. pre-estimating a ruler; 2. a scale; 21. balancing weight; 22. a connecting frame; 23. a pointer; 24. a weight; 3. a screw rod; 31. a motor; 4. a boom; 5. a clamping portion; 51. an upper pull rod; 52. a lower pressure lever; 53. pulling up the fixed plate; 54. connecting blocks; 6. a screw; 61. a hand wheel; 7. a base plate; 71. a dovetail groove; 72. clamping and fixing the strip; 73. a material receiving box; 74. a stable connecting rod; 8. a baffle plate; 81. taking the mouth; 82. a sliding door; 83. A chute; 84. a first magnetic attraction part; 85. a second magnetic attraction part; 86. a top plate; 87. perforating; 88. a latch post; 89. a slide rail; 9. a squeegee; 91. a pull rod; 92. a connecting rod.

Detailed Description

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

Example (b): the utility model provides a cement bending test machine, refers to fig. 1, includes base 11, along the fixed support column 12 that sets up on base 11 of vertical direction and the fixed supporting beam 13 that sets up in support column 12 top, the fixed dead lever 14 that is provided with of vertical direction is followed to supporting beam 13's one end, rotates on the dead lever 14 and is connected with a scale 2. One end of the scale 2 is fixedly provided with a motor 31 below the scale 2, an output shaft of the motor 31 is parallel to the length direction of the scale 2, and a screw rod 3 is coaxially and fixedly connected to the output shaft of the motor 31. One end of the scale 2 connected with the motor 31 is provided with a balance weight 21 above the scale 2 for adjusting the balance of the scale 2. The end of the scale 2 far away from the motor 31 is fixedly provided with a pointer 23, and the support beam 13 is fixedly provided with a pre-measuring ruler 15.

Referring to fig. 1 and 2, a screw rod 6 is screwed on the base 11 along the vertical direction, and a hand wheel 61 is coaxially and fixedly connected to the screw rod 6. The upper end of the screw rod 6 is rotatably connected with a bottom plate 7 through a bearing. The edge of bottom plate 7 is fixed with the baffle 8 of perpendicular to bottom plate 7, and baffle 8 upwards extends from the marginal upper surface of bottom plate 7, and the common fixedly connected with roof 86 in top of all baffles 8. The top plate 86, the baffle plates 8 and the bottom plate 7 jointly form a cuboid, the two opposite baffle plates 8 are respectively provided with a taking port 81, the taking port 81 is covered with the sliding door 82, the lower surface of the bottom plate 7 is horizontally arranged, and the upper surface inclines downwards from the center to the two taking ports 81. The top plate 86 is provided with a square through hole 87.

Referring to fig. 1 and 3, a clamping portion 5 for clamping a sample is disposed in a cavity formed by the bottom plate 7, the top plate 86 and the baffle plate 8, the clamping portion 5 includes two upper pull rods 51 and a lower press rod 52, the upper pull rods 51 and the lower press rod 52 are parallel to each other, axial lines of the upper pull rods 51 and the lower press rod 52 are perpendicular to a thickness direction of the sliding door 82, the lower press rod 52 is located above the upper pull rods 51, and the two upper pull rods 51 are located on two sides of the lower press rod 52 respectively. Wherein the lower pressure lever 52 is fixedly connected between the two baffle plates 8 which are not provided with the taking port 81. The scale 2 is fixedly provided with a connecting frame 22, the connecting frame 22 is positioned at the side of the joint of the scale 2 and the fixed rod 14 facing the motor 31, the supporting beam 13 is rotatably connected with a hanging rod 4, and the connecting frame 22 extends downwards and is rotatably connected with one end of the hanging rod 4 far away from the supporting beam 13. A connecting block 54 is rotatably connected to the suspension rod 4, and the distance from the joint of the connecting block 54 and the suspension rod 4 to the joint of the suspension rod 4 and the supporting beam 13 is less than the distance from the joint of the connecting block 54 and the suspension rod 4 to the joint of the suspension rod 4 and the connecting frame 22. The connecting block 54 extends downward and passes through the through hole 87, and the connecting block 54 abuts against the inner wall of the through hole 87. The lower end of the connecting block 54 is rotatably connected with two parallel pull-up fixing plates 53 through a connecting shaft (not shown), and the pull-up rod 51 is connected between the two pull-up fixing plates 53 and is perpendicular to the two pull-up fixing rods 14.

A sample to be tested is placed between the upper pull rod 51 and the lower press rod 52 through the taking port 81, the motor 31 drives the screw rod 3 to rotate and drives the sliding block to slide towards the direction of the pointer 23, so that the pressing scale 2 rotates, the hanging rod 4 is pulled to rotate through the connecting frame 22, the upper pull rod 51 is pulled upwards, the sample is pressed, and the sample is broken. After the test piece is broken, the motor 31 stops working, and the bending strength of the test piece can be calculated by reading the number of the weights 24 on the scale 2.

Referring to fig. 2 and 3, the baffle 8 is provided with a slide rail 89 on each of the two upward sides of each access opening 81 along the vertical direction, and the sliding door 82 is slidably connected to the slide rail 89 through a slide block (not shown). Three latch grooves (not shown) are formed in the lower end of each of the sliding doors 82, and six latch posts 88 are provided on the bottom plate 7. When the slide block slides to the lowest end of the slide rail 89, the lower end of the slide door 82 abuts against the bottom plate 7, and each latch post 88 is inserted into a latch groove (not shown). A first magnetic attraction portion 84 is fixedly disposed at the upper end of the sliding door 82, and a second magnetic attraction portion 85 for attracting the first magnetic attraction portion 84 is disposed at the top end of the baffle plate 8, wherein the first magnetic attraction portion 84 and the second magnetic attraction portion 85 are magnets with opposite magnetic poles.

Referring to fig. 3, two sliding grooves 83 are respectively formed in two baffle plates 8 not provided with the taking port 81, the sliding grooves 83 extend from the center of the bottom plate 7 to the taking port 81, two scraping plates 9 are slidably disposed on the bottom plate 7, two ends of each scraping plate 9 are respectively slidably connected to the two sliding grooves 83, and the lower surfaces of the scraping plates 9 are always abutted to the upper surface of the bottom plate 7 in the sliding process of the scraping plates 9. Each scraper 9 is rotatably connected with two pull rods 91, each pull rod 91 is perpendicular to each scraper 9, one end of each pull rod 91, which is far away from each scraper 9, is connected with a connecting rod 92, and each connecting rod 92 is perpendicular to each pull rod 91. Two dovetail grooves 71 are formed in the bottom plate 7 along the length direction of the scraper 9, and the two dovetail grooves 71 are formed below the taking port 81 and penetrate through the two sides of the bottom plate 7. Each dovetail groove 71 is slidably connected with a material receiving box 73 through a clamping strip 72, and the two material receiving boxes 73 are fixedly connected through a stable connecting rod 74.

The steps of this example are as follows:

1. and adjusting the weight 24 to one end close to the motor 31, adjusting the balance weight 21 to enable the scale 2 to be horizontal, and positioning the pointer 23 at the origin of the pre-estimating ruler 15.

2. The sliding door 82 is pulled upwards and the first magnetic part 84 is attracted to the second magnetic part 85.

3. The sample was removed from the curing box and wiped dry.

4. The height of the bottom plate 7 and the height of the lower pressing rod 52 are adjusted by rotating the hand wheel 61, and a sample is placed between the upper pull rod 51 and the lower pressing rod 52.

5. The first wheel is rotated to press the lower pressing rod 52 against the sample, so that the scale 2 is tilted until the reading of the pointer 23 on the pre-estimating ruler 15 is close to the estimated value of the anti-bending capacity of the sample.

6. The sliding door 82 is pulled downward so that the sliding door 82 covers the access opening 81.

7. The motor 31 is started, the motor 31 drives the screw rod 3 to rotate, the weight 24 is driven to slide towards the side far away from the motor 31, the scale 2 is pressed to rotate by the weight 24 in the sliding process, the scale 2 pulls the connecting frame 22 to move upwards, the connecting frame 22 can pull the hanging rod to rotate and pull the pull-up fixing plate 53 to move upwards through the connecting block 54, and then the pull-up rod 51 is driven to move upwards, so that the sample is broken. The motor 31 stops operating at the moment the sample breaks.

8. The position where the weight 24 is resting is read.

9. The sliding door 82 is pulled upwards and opened, the broken sample is taken out from between the upper pull rod 51 and the lower press rod 52, and the pull rod 91 is pulled to drive the scraper 9 to scrape the scraps and small particles on the bottom plate 7 off the material receiving box 73.

10. The material receiving box 73 is removed and the material receiving box 73 is cleaned.

In the process, small particles generated when the sample is broken can be blocked by the baffle 8 and the top plate 86, and the small particles can not splash and cause injury to operators and can not damage other equipment in a laboratory. After the test is finished, the bottom plate 7 is cleaned through the scraper 9, and the operation is simple and convenient.

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 (10)

1. A cement bending resistance testing machine comprises a base (11), a supporting column (12) fixedly arranged on the base (11), a supporting beam (13) fixedly arranged on the supporting column (12) along the horizontal direction, a fixing rod (14) fixedly arranged at one end of the supporting beam (13) and a scale (2) rotatably connected to the fixing rod (14), wherein one end of the scale (2) is fixedly provided with a motor (31), an output shaft of the motor (31) is coaxially and fixedly connected with a lead screw (3), and the lead screw (3) is parallel to the scale (2); sliding connection has weight (24) on scale (2), weight (24) and lead screw (3) threaded connection, still be provided with clamping part (5) on base (11), clamping part (5) include two pull-up rod (51) and one depression bar (52) down, pull-up rod (51) and depression bar (52) are parallel to each other go up pull-up rod (51) and be connected with jib (4) of a perpendicular to pull-up rod (51) axial lead on supporting beam (13) in a rotating way, scale (2) rotate between the junction of scale (2) and dead lever (14) and motor (31) and be connected with link (22), the one end that supporting beam (13) was kept away from in jib (4) rotates the lower extreme of connecting link (22), and be connected with two pull-up fixed plate (53) that are parallel to each other on jib (4), and two pull-up rod (51) all connect between two pull-up fixed plate (53), the method is characterized in that: a screw rod (6) is arranged on the base (11) along the vertical direction, a hand wheel (61) is coaxially and fixedly connected to the screw rod (6), a bottom plate (7) is rotatably connected to the screw rod (6) above the hand wheel (61) through a bearing, a baffle (8) surrounding the bottom plate (7) is arranged on the edge of the bottom plate (7), and the lower pressing rod (52) is arranged on the baffle (8); two taking openings (81) are formed in the baffle (8), and sliding doors (82) are arranged at the taking openings (81) in a covering mode.

2. The cement bending tester according to claim 1, characterized in that: a sliding rail (89) is arranged on the baffle (8) along the vertical direction, and the sliding door (82) is connected to the sliding rail (89) in a sliding manner; when the sliding door (82) covers the taking opening (81), the sliding door (82) is abutted to the bottom plate (7).

3. The cement bending tester according to claim 2, characterized in that: the lower surface of the sliding door (82) is provided with a plurality of pin grooves, and the bottom plate (7) is fixedly provided with a plurality of pin columns (88) embedded in the pin grooves.

4. The cement bending tester according to claim 2, characterized in that: the upper end of sliding door (82) is fixed and is provided with first magnetism portion of inhaling (84), baffle (8) are fixed above slide rail (89) and are provided with second magnetism portion of inhaling (85) that is used for adsorbing first magnetism portion of inhaling (84).

5. The cement bending tester according to claim 2, characterized in that: the top of baffle (8) is fixed and is provided with roof (86), seted up perforation (87) on roof (86), two the upper end of pull-up fixed plate (53) is rotated through a connecting axle and is connected with a connecting block (54), connecting block (54) wear to locate in perforation (87), just connecting block (54) keep away from the one end rotation of pull-up fixed plate (53) and connect on jib (4).

6. The cement bending tester according to claim 2, characterized in that: the bottom plate (7) inclines downwards from the center to one side close to the taking port (81), and a material receiving box (73) used for receiving the scraps sliding out of the taking port (81) is arranged on the bottom plate (7).

7. The cement bending tester according to claim 6, wherein: the improved structure is characterized in that a dovetail groove (71) is formed in the side wall of the bottom plate (7), the dovetail groove (71) penetrates through the two sides of the bottom plate (7) along the length direction of the material receiving box (73), a clamping and fixing strip (72) is arranged on the material receiving box (73), and the clamping and fixing strip (72) is clamped in the dovetail groove (71).

8. The cement bending tester according to claim 7, wherein: a stable connecting rod (74) is fixedly arranged between the two material receiving boxes (73).

9. The cement bending tester according to claim 6, wherein: still sliding connection has scraper blade (9) on bottom plate (7), the both ends of scraper blade (9) butt respectively in two baffles (8) of relative setting, it is connected with pull rod (91) to rotate on scraper blade (9), pull rod (91) perpendicular to scraper blade (9).

10. The cement bending tester according to claim 9, wherein: a connecting rod (92) is fixedly arranged at one end of the pull rod (91) far away from the scraper (9); the connecting rod (92) is perpendicular to the pull rod (91).

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