Precast concrete component strength detection device

Abstract

The invention discloses a device for detecting the strength of a precast concrete component, and relates to the technical field of concrete detection, a compressive strength detection mechanism for detecting the compressive strength of the precast concrete component is arranged on a support, and a splitting tensile strength detection mechanism for detecting the splitting tensile strength of the precast concrete component is arranged on a bracket. An upper gasket and a lower gasket are attracted through an electromagnet, the lower gasket is placed on an arc-shaped plate, a concrete prefabricated part is placed on the lower gasket in a first supporting frame, and the upper gasket is placed on the top of the concrete prefabricated part, so that automatic placement of the upper gasket and the lower gasket is achieved, and it is ensured that the gaskets are accurately attached to the top face and the bottom face of the part; according to the split tensile strength detection device for the concrete prefabricated part, the gasket is arranged in the first supporting frame, gasket deviation caused by manual placement is avoided, the split plate moves in the sliding hole in the first supporting frame in the vertical direction, the stress uniformity during split tensile strength detection of the concrete prefabricated part is further guaranteed, and the accuracy of split tensile strength detection of the concrete prefabricated part is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete detection, in particular to a concrete prefabricated component strength detection device. BACKGROUND

[0002] As the core basic component in the fields of building engineering, traffic engineering, water conservancy engineering and the like, the mechanical properties of the concrete prefabricated component, especially the strength performance, are directly related to the safety, durability and reliability of the engineering structure. The splitting tensile strength and the compressive strength are the key indexes for measuring the mechanical properties of the concrete prefabricated component, the splitting tensile strength reflects the ability of the component to resist tensile failure, and is commonly used to evaluate the bearing capacity of the component under the tensile working condition, and the compressive strength reflects the ultimate ability of the component to bear axial compression, and is the core basis for the component design and quality acceptance. Therefore, accurate and efficient detection of the strength of the concrete prefabricated component is an important link in engineering quality control.

[0003] The existing concrete prefabricated component strength detection device has the shortcomings of poor detection accuracy and many manual intervention links, and it is difficult to meet the requirements of precision, automation and large-scale strength detection. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a concrete prefabricated component strength detection device which effectively improves the accuracy of splitting tensile strength detection and compressive strength detection of the concrete prefabricated component.

[0005] The technical scheme adopted to solve the above technical problems is: a support is arranged on one side of the support, a compressive strength detection mechanism for detecting the compressive strength of the concrete prefabricated component is arranged on the support, and a splitting tensile strength detection mechanism for detecting the splitting tensile strength of the concrete prefabricated component is arranged on the support; the splitting tensile strength detection mechanism is that a guide rail plate is slidably connected to the support in the vertical direction, a second guide rail is arranged on the guide rail plate, a sliding frame is slidably connected to the second guide rail in the horizontal direction, a first support frame is arranged on the sliding frame, sliding holes are respectively arranged on the two sides of the first support frame, an arc-shaped plate is arranged on the inner bottom of the first support frame, a lower gasket is arranged on the arc-shaped plate, a concrete prefabricated component is placed on the lower gasket, the concrete prefabricated component is located in the first support frame, an upper gasket is arranged on the top of the concrete prefabricated component, penetrating holes are respectively arranged on the two sides of the first support frame, a third screw rod is rotatably installed on the sliding frame, the third screw rod is threadedly connected with a first connecting plate, stop rods penetrating through the penetrating holes are respectively arranged on the two sides of the first connecting plate, a first sleeve is in abutment with the two sides of the concrete prefabricated component, a guide rod is slidably connected to the sliding frame in the vertical direction, the guide rod is provided with the first connecting plate on the top, a rotating rod is rotatably installed on the first connecting plate, a splitting plate is arranged on the rotating rod, sliding holes for slidably connecting the splitting plate in the vertical direction are respectively formed in the two sides of the first support frame, the splitting plate is moved to press the upper part of the upper gasket to split the concrete prefabricated component, and the splitting tensile strength of the concrete prefabricated component is detected.

[0006] Further, a first sleeve is arranged on one side of the support, the first sleeve is fixedly connected with a second sleeve through a connecting rod, a first stretching rod is slidably connected to the inside of the first sleeve in the horizontal direction, a first electromagnet magnetically connected with the upper gasket is arranged on the first stretching rod, the upper gasket is pushed into the upper part of the concrete prefabricated component in the first support frame, a second stretching rod is slidably connected to the inside of the second sleeve in the horizontal direction, a second electromagnet magnetically connected with the lower gasket is arranged on the second stretching rod, the lower gasket is pushed into the upper part of the arc-shaped plate, and the lower gasket is located below the concrete prefabricated component.

[0007] Further, a second screw rod is rotatably installed on the second sleeve, the second screw rod is threadedly connected with a second positioning plate, a first guide rail slidably connected with the second positioning plate in the horizontal direction is arranged on the second sleeve, the second positioning plate is in abutment with one side of the lower gasket, a first screw rod is rotatably installed on the support on the other side of the support, a first positioning plate is threadedly connected with the first screw rod, the first positioning plate is in abutment with the other side of the lower gasket, and the second positioning plate and the first positioning plate position the lower gasket.

[0008] Further, a stretching plate is slidably connected to the inside of the shell of the support in the vertical direction, a first sliding groove is formed in the bottom of the stretching plate, two first clamping plates clamping the concrete prefabricated component are slidably connected to the two sides of the first sliding groove in the horizontal direction, and the horizontal sliding directions of the two first clamping plates are opposite.

[0009] Further, the longitudinal section shape of the splitting plate is arc-shaped, and the arc-shaped plate at the bottom of the splitting plate is in contact with the top surface of the upper gasket.

[0010] Further, the support is provided with a polishing mechanism for polishing the upper and lower top surfaces of the clamped concrete prefabricated component, the polishing mechanism comprises: a second sliding plate connected to the support in a horizontal direction, two first sliding plates connected to the second sliding plate in a vertical direction, the vertical sliding directions of the two first sliding plates being opposite, each first sliding plate being provided with a tenth motor for driving a polishing disc to rotate, the polishing disc located at the upper position polishing the top surface of the concrete prefabricated component, and the polishing disc located at the lower position polishing the bottom surface of the concrete prefabricated component.

[0011] Further, the compression strength detection mechanism comprises: a sixth screw rod rotatably installed on the support, the sixth screw rod being threadedly connected with a sliding block, an inner bottom of the support being provided with a track for slidingly connecting the sliding block in a horizontal direction, the sliding block being provided with the concrete prefabricated component at the middle position, the support being provided with a third electric cylinder, an output end of the third electric cylinder being connected with a pressing plate, the concrete prefabricated component on the sliding block being slid to be located directly below the pressing plate, and the pressing plate being used for detecting the compression strength of the concrete prefabricated component.

[0012] Further, the support is provided with two fourth electric cylinders, the output ends of the two fourth electric cylinders being respectively connected with two second clamping plates, each second clamping plate clamping one side of the concrete prefabricated component, and the two second clamping plates being symmetrical to each other with the diagonal line of the concrete prefabricated component as the symmetry line.

[0013] Further, the support is provided with openings at two sides thereof, fifth screw rods rotatably installed at the two sides of the support, the fifth screw rods being threadedly connected with baffle plates, and second sliding grooves for slidingly connecting the baffle plates in a vertical direction being formed at positions of the support located at the two sides of the openings.

[0014] Further, the support is provided with dust adsorption mechanisms for adsorbing dust on the concrete prefabricated component, each dust adsorption mechanism comprising: a box body provided at each side of the support, a second electric cylinder provided at each box body, an output end of each second electric cylinder being fixedly connected with a second support frame, a dust adsorption head provided at the second support frame for adsorbing dust on the concrete prefabricated component, and an output end of the dust adsorption head being communicated with a dust suction pump through a pipeline.

[0015] The beneficial effects of the present application are as follows: (1) the present application adopts the method of respectively adsorbing the upper gasket and the lower gasket by the electromagnet, placing the lower gasket on the arc-shaped plate, placing the concrete prefabricated component on the lower gasket in the first support frame, and placing the upper gasket on the top of the concrete prefabricated component, so as to realize the automatic placement of the upper gasket and the lower gasket, ensure the accurate fitting of the gasket with the top surface and the bottom surface of the component, avoid the deviation of the gasket caused by manual placement, and further guarantee the uniformity of stress when the concrete prefabricated component is subjected to the splitting tensile strength detection, thereby effectively improving the accuracy of the splitting tensile strength detection of the concrete prefabricated component, and the present application has the advantages of high automation degree and accurate positioning.

[0016] (2) in the present application, the top surface and the bottom surface of the concrete prefabricated component are coarsely polished by the two polishing discs before the splitting tensile strength detection of the concrete prefabricated component, so as to ensure the flatness of the detection contact surface, avoid the stress concentration or uneven stress caused by the uneven surface of the concrete prefabricated component, provide stable positioning for the splitting tensile strength detection, and reduce the detection data deviation.

[0017] (3) in the present application, when the concrete prefabricated component is subjected to the compressive strength detection, the two second clamping plates clamp and position the side surface of the component, so as to ensure that the component is located in the middle of the sliding block and avoid the distortion of the detection result caused by eccentric compression during the compressive detection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of one embodiment of the strength detection device for the concrete prefabricated component.

[0019] Figure 2 is Figure 1 a structural schematic view from another angle.

[0020] Figure 3 is a structural schematic view of the splitting tensile strength detection mechanism.

[0021] Figure 4 is a structural schematic view of the parts on the stretching plate.

[0022] Figure 5 is a structural schematic view of the parts on the first sleeve and the second sleeve.

[0023] Figure 6 is a structural schematic view of the parts on the first support frame of the sliding frame.

[0024] Figure 7 is a structural schematic view of the splitting plate.

[0025] Figure 8 is a structural schematic view of the first support frame, the lower gasket and the upper gasket.

[0026] Figure 9 is a structural schematic diagram of the dust adsorption mechanism and the compressive strength detection mechanism.

[0027] Figure 10 is a structural schematic diagram of the parts on the second support frame.

[0028] Figure 11 is a structural schematic diagram of the compressive strength detection mechanism.

[0029] Figure 12 is a structural schematic diagram of the polishing mechanism.

[0030] Figure 13 is a structural schematic diagram of the third sliding groove and the seventh lead screw.

[0031] Figure 14 is a structural schematic diagram of the first sliding plate and the eighth lead screw.

[0032] Reference signs: 1, splitting tensile strength detection mechanism; 101, first stretching rod; 102, first sleeve; 103, first electromagnet; 104, second sleeve; 105, second stretching rod; 106, second electromagnet; 107, first positioning plate; 108, first lead screw; 109, first clamping plate; 110, stretching plate; 111, first sliding groove; 112, connecting rod; 113, first guide rail; 114, second positioning plate; 115, second lead screw; 116, upper gasket; 117, guide rod; 118, rotating rod; 119, splitting plate; 120, stop rod; 121, third lead screw; 122, first electric cylinder; 123, sliding frame; 124, second guide rail; 125, guide rail plate; 126, through hole; 127, first support frame; 128, lower gasket; 129, arc-shaped plate; 130, fourth lead screw; 131, sliding hole; 132, first connecting plate; 133, second connecting plate; 2, concrete prefabricated component; 3, support; 4, dust adsorption mechanism; 401, box body; 402, second electric cylinder; 403, second support frame; 404, dust adsorption head; 405, pipeline; 5, compressive strength detection mechanism; 501, third electric cylinder; 502, baffle; 503, fifth lead screw; 504, sliding block; 505, second clamping plate; 506, fourth electric cylinder; 507, pressing plate; 508, track; 509, sixth lead screw; 510, second sliding groove; 6, polishing mechanism; 601, tenth motor; 602, first sliding plate; 603, polishing disc; 604, second sliding plate; 605, storage box; 606, third sliding groove; 607, seventh lead screw; 608, eighth lead screw; 7, support; 8, opening. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] like Figures 1-2 As shown, the concrete precast component strength testing device in this embodiment is composed of a splitting tensile strength testing mechanism 1, a concrete precast component 2, a support 3, a dust adsorption mechanism 4, a compressive strength testing mechanism 5, a grinding mechanism 6, a bracket 7, and an opening 8 connected together.

[0035] A support 7 is provided on one side of the support 3. A compressive strength testing mechanism 5 for testing the compressive strength of the precast concrete component 2 is provided on the support 3. A splitting tensile strength testing mechanism 1 for testing the splitting tensile strength of the precast concrete component 2 is provided on the support 7.

[0036] like Figures 3-8 As shown, the splitting tensile strength testing mechanism 1 is composed of a first tension rod 101, a first sleeve 102, a first electromagnet 103, a second sleeve 104, a second tension rod 105, a second electromagnet 106, a first positioning plate 107, a first lead screw 108, a first clamping plate 109, a tension plate 110, a first sliding groove 111, a connecting rod 112, a first guide rail 113, a second positioning plate 114, a second lead screw 115, an upper gasket 116, a guide rod 117, a rotating rod 118, a splitting plate 119, a stop bar 120, a third lead screw 121, a first electric cylinder 122, a sliding frame 123, a second guide rail 124, a guide rail plate 125, a through hole 126, a first support frame 127, a lower gasket 128, an arc plate 129, a fourth lead screw 130, a sliding hole 131, a first connecting plate 132, and a second connecting plate 133.

[0037] The splitting tensile strength testing mechanism 1 consists of: a tension plate 110 slidably connected in the vertical direction inside the shell of the support 7; a sixth electric cylinder that drives the tension plate 110 to slide in the vertical direction on the support 7; a first groove 111 machined at the bottom of the tension plate 110; two first clamping plates 109 that clamp the precast concrete components 2 that are slidably connected in the horizontal direction on both sides of the first groove 111; and a fifth electric cylinder that drives the first clamping plates 109 to slide in the horizontal direction on both sides of the tension plate 110; the horizontal sliding directions of the two first clamping plates 109 are opposite.

[0038] A guide rail plate 125 is slidably connected to the support 3 along the vertical direction. A fifth motor is installed on the support 3 to drive the fourth lead screw 130 to rotate. The fourth lead screw 130 is rotatably connected to the support 3. A second guide rail 124 is installed on the guide rail plate 125. A sliding frame 123 is slidably connected to the second guide rail 124 along the horizontal direction. A first electric cylinder 122 is installed on the guide rail plate 125 to drive the sliding frame 123 to slide horizontally. A first support frame 127 is installed on the sliding frame 123. Sliding holes 131 are respectively provided on both sides of the first support frame 127. An arc-shaped plate 129 is provided at the bottom of the 27, and a lower shim 128 is provided on the arc-shaped plate 129. A precast concrete component 2 is placed on the lower shim 128. A second tension rod 105 is slidably connected to the inside of the second sleeve 104 in the horizontal direction. A seventh electric cylinder is provided inside the second sleeve 104 to drive the second tension rod 105 to slide in the horizontal direction. A second electromagnet 106 is provided on the second tension rod 105 and magnetically connected to the lower shim 128. The lower shim 128 is pushed above the arc-shaped plate 129 and is located below the precast concrete component 2. A second lead screw 115 is rotatably mounted on the second sleeve 104. A first motor is provided on the second sleeve 104 to drive the second lead screw 115 to rotate. The second lead screw 115 is threadedly connected to the second positioning plate 114. A first guide rail 113 is provided on the second sleeve 104 and is slidably connected to the second positioning plate 114 in the horizontal direction. The second positioning plate 114 abuts against one side of the lower pad 128. A first lead screw 108 is rotatably mounted on the other side of the support rod of the bracket 7. A second motor is provided on the other side of the support rod of the bracket 7 to drive the first lead screw 108 to rotate. A first positioning plate 107 is threadedly connected to the first lead screw 108. The first positioning plate 107 abuts against the other side of the lower pad 128. The second positioning plate 114 and the first positioning plate 107 position the lower pad 128.

[0039] The precast concrete component 2 is located inside the first support frame 127. An upper gasket 116 is provided on the top of the precast concrete component 2. A first sleeve 102 is provided on one side of the support rod of the bracket 7. The bottom of the first sleeve 102 is fixedly connected to the second sleeve 104 via a connecting rod 112. A first tension rod 101 is slidably connected horizontally inside the first sleeve 102. An eighth electric cylinder is provided inside the first sleeve 102 to drive the first tension rod 101 to slide horizontally. A first electromagnet 103 is provided on the first tension rod 101 and magnetically connected to the upper gasket 116. The upper gasket 116 is pushed into the first support frame 127 above the precast concrete component 2. Through holes 126 are provided on both sides of the first support frame 127. A third lead screw 121 is rotatably mounted on the sliding frame 123. A drive mechanism for the third lead screw 121 is provided on the sliding frame 123. The third motor rotates the three lead screws 121, which are threadedly connected to the first connecting plate 132. The first connecting plate 132 has stop bars 120 on both sides that pass through the through hole 126. The first sleeve 102 abuts against both sides of the precast concrete component 2. The sliding frame 123 is slidably connected to the guide rod 117 in the vertical direction. The first connecting plate 132 is provided on the top of the guide rod 117. The sliding frame 123 is provided with a ninth electric cylinder that drives the first connecting plate 132 to slide in the vertical direction. The first connecting plate 132 is rotatably mounted with a rotating rod 118. The first connecting plate 132 is provided with a fourth motor that drives the rotating rod 118 to rotate. The rotating rod 118 is provided with a splitting plate 119. The longitudinal cross-section of the splitting plate 119 is arc-shaped. The arc-shaped plate at the bottom of the splitting plate 119 abuts against the top surface of the upper gasket 116. The first support frame 127 has sliding holes 131 on both sides that are slidably connected to the splitting plate 119 in the vertical direction. The splitting plate 119 moves to press against the upper part of the upper pad 116 to split the precast concrete component 2 and test the splitting tensile strength of the precast concrete component 2.

[0040] like Figures 9-10 As shown, the dust adsorption mechanism 4 is composed of a housing 401, a second electric cylinder 402, a second support frame 403, a dust adsorption head 404, and a pipe 405.

[0041] Dust adsorption mechanisms 4 for cleaning and adsorbing dust on precast concrete components 2 are respectively provided on both sides of the support 3. The dust adsorption mechanism 4 is as follows: a box 401 is provided on both sides of the support 3, and a second electric cylinder 402 is provided on each box 401. The output end of each second electric cylinder 402 is fixedly connected to a second support frame 403. A dust adsorption head 404 for adsorbing dust on precast concrete components 2 is provided on the second support frame 403. The output end of the dust adsorption head 404 is connected to a dust pump through a pipe 405.

[0042] like Figure 9 , Figure 11As shown, the compressive strength testing mechanism 5 is composed of a third electric cylinder 501, a baffle 502, a fifth lead screw 503, a slider 504, a second clamping plate 505, a fourth electric cylinder 506, a pressure plate 507, a track 508, a sixth lead screw 509, and a second slide groove 510.

[0043] The compressive strength testing mechanism 5 consists of: a sixth lead screw 509 rotatably mounted on a support 3; a seventh motor driving the sixth lead screw 509 to rotate on the support 3; the sixth lead screw 509 being threadedly connected to a slider 504; a track 508 slidingly connected to the slider 504 in a horizontal direction at the bottom of the support 3; a precast concrete component 2 placed in the center of the slider 504; two fourth electric cylinders 506 mounted on the support 3; the output end of each fourth electric cylinder 506 connected to a second clamping plate 505; each second clamping plate 505 clamping one side of the precast concrete component 2; and the two second clamping plates 505 being symmetrical about the diagonal of the precast concrete component 2. A third electric cylinder 501 mounted on the support 3; the output end of the third electric cylinder 501 connected to a pressure plate 507; the precast concrete component 2 on the slider 504 sliding to a position directly below the pressure plate 507; and the pressure plate 507 performing compressive strength testing on the precast concrete component 2.

[0044] The support 3 has openings 8 on both sides, and a fifth lead screw 503 is rotatably installed on both sides of the support 3. A sixth motor is provided on both sides of the support 3 to drive the fifth lead screw 503 to rotate. The fifth lead screw 503 is threadedly connected to the baffle 502. A second slide groove 510 is machined on the support 3 at the position on both sides of the opening 8, and is slidably connected to the baffle 502 in the vertical direction.

[0045] like Figures 12-14 As shown, the grinding mechanism 6 is composed of a tenth motor 601, a first sliding plate 602, a grinding disc 603, a second sliding plate 604, a storage box 605, a third sliding groove 606, a seventh lead screw 607, and an eighth lead screw 608.

[0046] The support 7 is equipped with a grinding mechanism 6 for grinding the top and bottom surfaces of the clamped precast concrete component 2. The grinding mechanism 6 consists of: a second sliding plate 604 slidably connected to the support 7 in the horizontal direction; an eighth motor that drives a seventh lead screw 607 to rotate on the support 7, the seventh lead screw 607 being rotatably connected to the support 7; a third sliding groove 606 that is slidably connected to the second sliding plate 604 in the horizontal direction on the support 7; two first sliding plates 602 that are slidably connected to the second sliding plate 604 in the vertical direction; a ninth motor that drives an eighth lead screw 608 to rotate on both sides of the second sliding plate 604, the thread directions of the two eighth lead screws 608 being opposite; the vertical sliding directions of the two first sliding plates 602 being opposite; and a tenth motor 601 that drives a grinding disc 603 to rotate on each first sliding plate 602. The upper grinding disc 603 grinds the top surface of the precast concrete component 2, and the lower grinding disc 603 grinds the bottom surface of the precast concrete component 2.

[0047] The working principle of this embodiment is as follows: (1) The splitting tensile strength testing mechanism 1 performs splitting tensile strength testing on the precast concrete component 2: The fifth electric cylinders on both sides of the bottom of the tension plate 110 drive the first clamping plate 109 to slide horizontally on the first slide groove 111. The horizontal sliding directions of the two first clamping plates 109 are opposite. The two first clamping plates 109 clamp the precast concrete component 2. The output end of the sixth electric cylinder drives the tension plate 110 to move vertically downward inside the housing of the bracket 7. The tension plate 110 drives the precast concrete component 2 clamped by the first slide groove 111 and the two first clamping plates 109 to move vertically downward. The precast concrete component 2 moves to the vicinity of the two grinding discs 603.

[0048] The output shaft of the eighth motor drives the seventh lead screw 607 to rotate. The second slide plate 604 moves horizontally on the seventh lead screw 607 and the two third slide grooves 606. The second slide plate 604 drives the tenth motors 601 and the grinding discs 603 on the two first slide plates 602 to move horizontally. The upper grinding disc 603 moves to a position above the precast concrete component 2, and the lower grinding disc 603 moves to a position below the precast concrete component 2. The output end of each ninth motor drives the eighth lead screw 608 to rotate. Each first slide plate 602 moves horizontally on the eighth lead screw 608. The upper edge moves vertically, the threads of the two eighth lead screws 608 are opposite, and the vertical sliding directions of the two first slide plates 602 are opposite. The upper grinding disc 603 moves to contact the top surface of the precast concrete component 2, and the lower grinding disc 603 moves to contact the bottom surface of the precast concrete component 2. The tenth motor 601 on each first slide plate 602 starts, and each tenth motor 601 drives the grinding disc 603 to rotate. The two grinding discs 603 perform rough grinding on the top and bottom surfaces of the precast concrete component 2, respectively. After the rough grinding is completed, the second slide plate 604 returns to its original position.

[0049] The output of the first electric cylinder 122 drives the sliding frame 123 to move horizontally on the second guide rail 124 of the guide rail plate 125. Adjusting the horizontal position of the sliding frame 123, the output shaft of the fifth motor drives the fourth lead screw 130 to rotate, causing the guide rail plate 125 to move vertically on the fourth lead screw 130. Adjusting the vertical position of the guide rail plate 125, the second electromagnet 106 is energized and magnetically connected to the lower washer 128. The output of the seventh electric cylinder drives the second tension rod 105 to slide horizontally inside the second sleeve 104. The second tension rod 105 drives the second electromagnet 128... The lower pad 128 connected to the upper part of the 06 moves to above the arc plate 129, the second electromagnet 106 is de-energized, the second electromagnet 106 separates from the lower pad 128, and the lower pad 128 is placed on the arc plate 129. The output end of the sixth electric cylinder continues to drive the tension plate 110 to move vertically downward inside the housing of the bracket 7. The two first clamping plates 109 clamp the precast concrete component 2 and place the precast concrete component 2 on the lower pad 128 inside the first support frame 127. The first electromagnet 103 is energized and magnetically connected to the upper pad 116. The output end of the eighth electric cylinder drives the first tension rod. 101 slides horizontally inside the first sleeve 102. The first tension rod 101 drives the upper washer 116 connected to the first electromagnet 103 to move to the top of the precast concrete component 2. The first electromagnet 103 is de-energized, and the first electromagnet 103 separates from the upper washer 116. The upper washer 116 is placed on the top of the precast concrete component 2. The third motor drives the third lead screw 121 to rotate. The first connecting plate 132 moves horizontally on the third lead screw 121. The first connecting plate 132 drives the two stop rods 120 to move horizontally respectively. Each stop rod 120 is inserted through the first support frame 127. Within the two through holes 126, to prevent the precast concrete component 2 from moving during the splitting tensile strength test, the output shaft of the fourth motor drives the rotating rod 118 to rotate on the first connecting plate 132. The rotating rod 118 drives the splitting plate 119 to rotate to a position above the first support frame 127. The ninth electric cylinder drives the first connecting plate 132 to move vertically. The first connecting plate 132 drives the two guide rods 117 to move vertically on the sliding frame 123. The splitting plate 119 moves vertically in the sliding hole 131 on the first support frame 127 to perform the splitting tensile strength test on the precast concrete component 2.

[0050] (2) The compressive strength testing mechanism 5 performs compressive strength testing on the precast concrete component 2: The precast concrete component 2 is placed on the slider 504. The output ends of the two fourth electric cylinders 506 located on the support 3 drive the second clamping plate 505 to move in the horizontal direction. The two second clamping plates 505 clamp and position the sides of the precast concrete component 2 to ensure that the precast concrete component 2 is located in the center of the slider 504. After positioning, the two fourth electric cylinders 506 are reset, and the two second clamping plates 505 are separated from the precast concrete component 2.

[0051] The output shaft of the seventh motor drives the sixth lead screw 509 to rotate. The slider 504 slides horizontally on the sixth lead screw 509 and the track 508. The precast concrete component 2 on the slider 504 moves to a position directly below the pressure plate 507. The sixth motors on both sides of the support 3 drive the fifth lead screw 503 to rotate. The baffles 502 move vertically on the fifth lead screw 503 and the second slide groove 510. The two baffles 502 are closed with the opening 8 of the support 3. The output ends of the second electric cylinders 402 on both sides of the support 3 drive the second support frame 403 to move horizontally inside the box 401. The dust adsorption head 404 on the second support frame 403 moves to a position close to the precast concrete component 2. Each dust pump adsorbs dust on the side of the precast concrete component 2 through the pipe 405 and the dust adsorption head 404. The output end of the third electric cylinder 501 drives the pressure plate 507 to move vertically. The pressure plate 507 performs compressive strength testing on the precast concrete component 2.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A strength testing device for precast concrete components, characterized in that: A support (7) is provided on one side of the support (3). A compressive strength testing mechanism (5) for testing the compressive strength of the precast concrete component (2) is provided on the support (3). A splitting tensile strength testing mechanism (1) for testing the splitting tensile strength of the precast concrete component (2) is provided on the support (7). The splitting tensile strength testing mechanism (1) is as follows: a guide rail plate (125) is slidably connected to the support (3) in the vertical direction, a second guide rail (124) is provided on the guide rail plate (125), a sliding frame (123) is slidably connected to the second guide rail (124) in the horizontal direction, a first support frame (127) is provided on the sliding frame (123), sliding holes (131) are provided on both sides of the first support frame (127), an arc plate (129) is provided at the bottom inside the first support frame (127), a lower pad (128) is provided on the arc plate (129), a precast concrete component (2) is placed on the lower pad (128), the precast concrete component (2) is located inside the first support frame (127), an upper pad (116) is provided on the top of the precast concrete component (2), through holes (126) are provided on both sides of the first support frame (127), and a sliding frame (123) is rotatably mounted on the sliding frame (123). The third lead screw (121) is threadedly connected to the first connecting plate (132). The first connecting plate (132) has a stop bar (120) on both sides that passes through the through hole (126). The first sleeve (102) abuts against both sides of the precast concrete component (2). The sliding frame (123) is slidably connected to the guide rod (117) in the vertical direction. The top of the guide rod (117) is provided with the first connecting plate (132). The first connecting plate (132) is rotatably installed on the first connecting plate (132). The rotating rod (118) is provided on the rotating rod (118). The first support frame (127) has sliding holes (131) on both sides that are slidably connected to the splitting plate (119) in the vertical direction. The splitting plate (119) moves to the upper part of the upper pad (116) to squeeze and split the precast concrete component (2). The splitting tensile strength of the precast concrete component (2) is tested.

2. The strength testing device for precast concrete components according to claim 1, characterized in that: The bracket (7) is provided with a first sleeve (102) on one side of the support rod. The bottom of the first sleeve (102) is fixedly connected to the second sleeve (104) through the connecting rod (112). The first sleeve (102) is slidably connected to the first tension rod (101) in the horizontal direction. The first tension rod (101) is provided with a first electromagnet (103) that is magnetically connected to the upper pad (116). The upper pad (116) is pushed into the first support frame (127) above the precast concrete component (2). The second sleeve (104) is slidably connected to the second tension rod (105) in the horizontal direction. The second tension rod (105) is provided with a second electromagnet (106) that is magnetically connected to the lower pad (128). The lower pad (128) is pushed into the arc plate (129) above the arc plate. The lower pad (128) is located below the precast concrete component (2).

3. The strength testing device for precast concrete components according to claim 1, characterized in that: A second lead screw (115) is rotatably mounted on the second sleeve (104). The second lead screw (115) is threadedly connected to the second positioning plate (114). A first guide rail (113) is provided on the second sleeve (104) and is slidably connected to the second positioning plate (114) in the horizontal direction. The second positioning plate (114) abuts against one side of the lower pad (128). A first lead screw (108) is rotatably mounted on the support rod on the other side of the bracket (7). The first positioning plate (107) is threadedly connected to the first lead screw (108). The first positioning plate (107) abuts against the other side of the lower pad (128). The second positioning plate (114) and the first positioning plate (107) position the lower pad (128).

4. The strength testing device for precast concrete components according to claim 1, characterized in that: The support (7) has a tension plate (110) slidably connected in the vertical direction inside the shell. The tension plate (110) has a first groove (111) processed at the bottom. Two first clamping plates (109) for clamping precast concrete components (2) are slidably connected in the horizontal direction on both sides of the first groove (111). The horizontal sliding directions of the two first clamping plates (109) are opposite.

5. The strength testing device for precast concrete components according to claim 1, characterized in that: The longitudinal section of the splitting plate (119) is arc-shaped, and the arc-shaped plate at the bottom of the splitting plate (119) abuts against the top surface of the upper pad (116).

6. The strength testing device for precast concrete components according to claim 1, characterized in that, The bracket (7) is provided with a grinding mechanism (6) for grinding the top and bottom surfaces of the clamped precast concrete component (2). The grinding mechanism (6) is as follows: a second sliding plate (604) is slidably connected to the bracket (7) in the horizontal direction, and two first sliding plates (602) are slidably connected to the second sliding plate (604) in the vertical direction. The vertical sliding directions of the two first sliding plates (602) are opposite. Each first sliding plate (602) is provided with a tenth motor (601) for driving the grinding disc (603) to rotate. The upper grinding disc (603) grinds the top surface of the precast concrete component (2), and the lower grinding disc (603) grinds the bottom surface of the precast concrete component (2).

7. The strength testing device for precast concrete components according to claim 1, characterized in that, The compressive strength testing mechanism (5) is as follows: a sixth lead screw (509) is rotatably installed on the support (3), the sixth lead screw (509) is threadedly connected to the slider (504), a track (508) is provided at the bottom of the support (3) and is slidably connected to the slider (504) in the horizontal direction, a precast concrete component (2) is placed in the middle of the slider (504), a third electric cylinder (501) is provided on the support (3), the output end of the third electric cylinder (501) is connected to the pressure plate (507), the precast concrete component (2) on the slider (504) slides to be located directly below the pressure plate (507), and the pressure plate (507) performs compressive strength testing on the precast concrete component (2).

8. The strength testing device for precast concrete components according to claim 7, characterized in that: The support (3) is provided with two fourth electric cylinders (506). The output end of each fourth electric cylinder (506) is connected to the second clamping plate (505). Each second clamping plate (505) clamps one side of the precast concrete component (2). The two second clamping plates (505) are symmetrical about each other with the diagonal of the precast concrete component (2) as the line of symmetry.

9. The strength testing device for precast concrete components according to claim 1, characterized in that: The support (3) has openings (8) on both sides, and a fifth screw (503) is rotatably installed on both sides of the support (3). The fifth screw (503) is threadedly connected to the baffle (502). A second groove (510) is machined on the support (3) at the position on both sides of the opening (8) and is slidably connected to the baffle (502) in the vertical direction.

10. The strength testing device for precast concrete components according to claim 9, characterized in that: The support (3) is provided with dust adsorption mechanism (4) on both sides for cleaning and adsorbing dust on the precast concrete component (2). The dust adsorption mechanism (4) is as follows: a box (401) is provided on both sides of the support (3), a second electric cylinder (402) is provided on each box (401), the output end of each second electric cylinder (402) is fixedly connected to the second support frame (403), and a dust adsorption head (404) for adsorbing dust on the precast concrete component (2) is provided on the second support frame (403). The output end of the dust adsorption head (404) is connected to the dust pump through a pipe.

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