CN219935592U - Automatic concrete slump testing device - Google Patents
Automatic concrete slump testing device Download PDFInfo
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- CN219935592U CN219935592U CN202321645322.2U CN202321645322U CN219935592U CN 219935592 U CN219935592 U CN 219935592U CN 202321645322 U CN202321645322 U CN 202321645322U CN 219935592 U CN219935592 U CN 219935592U
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000033001 locomotion Effects 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000005360 mashing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010561 standard procedure Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The utility model provides an automatic testing device for concrete slump, which relates to the field of concrete slump testing, and comprises an inserting and tamping mechanism, a lifting mechanism, a bucket lifting mechanism, a motor, a transmission device, a rack and the like.
Description
Technical Field
The utility model relates to the field of slump testing, in particular to an automatic concrete slump testing device.
Background
In recent years, along with the rapid growth of economic construction in China, foundation construction of each foundation is rapidly developed, and the requirement on concrete quality is also higher and higher. Commercial concrete in China is in the development primary stage, and slump is critical among a plurality of factors for determining concrete quality. The concrete slump test follows a standard and standard procedure, and the manual intervention in the current domestic concrete slump test mashing process is more, and the concrete slump test is generally carried out on a construction site, so that the personnel and environmental interference factors are more, the test consistency is poor, the efficiency is low, and the random error is very large.
Patent CN202110291123.5 discloses a detection device and a method for accurately measuring the slump of concrete, a fixed rod is rotated to a proper position through a sleeve and an adjusting bolt, and concrete mixture in a slump cylinder is manually vibrated from the periphery to the center, so that the uniformity of the stirring is difficult to ensure by manual operation.
Based on the above, it is needed to provide a concrete slump testing device, which solves the above problems.
Disclosure of Invention
The utility model aims to provide an automatic testing device for concrete slump so as to realize standard standardized testing of concrete slump, ensure the mashing uniformity of concrete, and have the advantages of high control consistency, high automation degree, low cost, easy maintenance, portability and convenience in use on construction sites, and have important significance for improving the testing accuracy, standardization and efficiency of concrete slump.
In a first aspect, the utility model provides an automatic concrete slump testing device, which comprises a frame, wherein a lifting mechanism is arranged above the frame, a workbench is arranged below the lifting mechanism, and a tamping mechanism is arranged on the workbench;
the tamping mechanism drives a crank to do rotary motion through a motor, the crank is connected with a connecting rod to do power transmission, and a tamping rod is connected with a sliding block through a connecting rod to realize up-and-down reciprocating motion along a vertical guide rail; the motor drives the intermediate rod to rotate at a constant speed, the intermediate rod is connected with the tamper, and the intermediate rod is matched with the tamper to enable the tamper to move around the Archimedes spiral guide rail so as to realize uniform stirring of the tamper from outside to inside.
As a possible implementation manner, the lifting mechanism is used for controlling the workbench to lift, the top of the rack is provided with a mounting platform, a motor is arranged on the mounting platform and drives the screw rod to rotate through a gear, the upper end of the screw rod is matched with a nut engaged on the mounting platform to realize lifting, the lower end of the screw rod is fixedly connected with a connecting plate, and two ends of the connecting plate are connected with the workbench through rod pieces.
As a possible implementation manner, the guide rail is fixed below the mounting platform, two ends of the connecting plate are embedded into the guide rail, and the workbench is driven along the guide rail to realize lifting movement when the screw rod rotates.
As a possible implementation manner, the device also comprises a bucket lifting mechanism, wherein the slump bucket is arranged on a bottom plate below the frame, a rammer rod passes through a workbench to enter the slump bucket, and a space for the rammer rod to move is arranged in the middle of the workbench; lifting arms are arranged on two sides of the slump barrel, a motor is arranged on the mounting platform to drive the winding shaft to rotate, and a steel wire rope is arranged on the winding shaft to be connected with the lifting arms on two sides of the slump barrel, so that the barrel lifting process is realized.
As a possible implementation manner, motor mounting seats are arranged on two sides of the workbench, and motors are respectively arranged on the motor mounting seats to provide power for axial movement and circumferential movement.
As one possible implementation mode, two groups of pulleys are arranged on the mounting platform, the motor drives the winding shaft to rotate through the reduction gear set, and a steel wire rope on the winding shaft is connected with lifting arms on two sides of the slump barrel through the pulleys.
As a possible implementation manner, a camera for collecting the height of the concrete is arranged on the rack.
As a possible implementation manner, a limit switch is arranged below the guide rail, when the bottom end of the stirring rod moves to be close to the bottom plate, the limit switch is touched, the motor stops rotating, and the motor stops descending.
Through the scheme of the utility model, the following effects can be realized:
the utility model creatively adopts the Archimedes spiral to be applied to the design of a testing device, realizes the creative integrated design of vertical insertion and tamping, layered insertion and tamping, spiral positioning and integral lifting functions of the slump barrel in the slump test, can realize accurate positioning and tamping, ensures the tamping uniformity of concrete, has high consistency of the testing process, low cost and convenient carrying and maintenance, and has important significance for improving the testing accuracy and automation of the slump of the concrete in a construction site.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic diagram of an automatic concrete slump testing device provided by the utility model;
fig. 2 is a schematic structural diagram of the tamping mechanism provided by the utility model;
FIG. 3 is a schematic view of a lifting mechanism according to the present utility model;
FIG. 4 is a schematic diagram of a bucket mechanism according to the present utility model;
reference numerals: 1-first motor, 2-reduction gear I, 3-reduction gear II, 4-second motor, 5-mounting platform, 6-lead screw, 7-frame, 8-third motor, 9-third motor mount, 10-table, 11-tamper, 12-camera, 13-floor, 14-slump barrel, 15-slide rail, 16-fourth motor, 17-pulley, 18-crank, 19-link, 20-slide block, 21-intermediate lever, 22-reduction gear III, 23-wire rope, 24-lifting arm, and,
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Standard method for slump testing in the art: filling concrete into a trumpet-shaped slump barrel with an upper opening of 100mm, a lower opening of 200mm and a height of 300mm for three times, uniformly beating the concrete from outside to inside along the barrel wall by using a tamping rod after each filling, and trowelling after tamping. Then the barrel is pulled up, the concrete collapses due to the dead weight, and the height of the highest point of the concrete after the collapse is subtracted by the height of the barrel (300 mm), which is called slump. If the difference is 100mm, the slump is 100.
Referring to the drawings, in order to solve any technical problem existing in the prior art, the embodiment of the utility model provides an automatic testing device for concrete slump, which comprises an inserting and tamping mechanism, a lifting mechanism, a bucket lifting mechanism, a motor, a transmission device, a frame and the like,
specifically, with reference to fig. 1 and 3, the top end of the frame 7 is provided with a mounting platform 5, the bottom of the frame 7 is provided with a bottom plate 13, the mounting platform is provided with a second motor 4, and the second motor 4 drives 2:1 drives a screw rod 6 to rotate, and a flange nut is fixedly arranged on the mounting platform and meshed with the screw rod, so that lifting is realized. The lead screw 6 is fixedly connected with the connecting plate, the two ends of the connecting plate are provided with sliding grooves, the sliding grooves are embedded into the sliding rails and move up and down along the sliding rails, and the sliding rails are fixed below the mounting platform. Rod piece fixed connection work table 11 is set up respectively at link plate both ends. The lifting movement of the workbench drives 2 through a second motor 4: the reduction gear of the machine tool 1 drives the screw rod 6 to move, and the workbench 11 is stably lifted to a standby position along the guide rails at the two sides through the movement of the screw rod 6. According to actual demands, three layers of tamping positions can be divided.
Further, with reference to fig. 1 and 2, according to the requirement of the experiment on measuring slump of concrete, the present embodiment needs to strike the concrete from outside to inside along the wall of the barrel by using the tamper 11 after each concrete injection, so that the guide rail is designed according to archimedes spiral so as to meet the requirement that the tamper 11 can strike the inside of the barrel from the wall of the barrel uniformly. One end of the workbench 10 is vertically provided with a fourth motor mounting seat, the outer side of the fourth motor mounting seat is provided with a fourth motor 16, an output shaft of the fourth motor 16 is connected with a crank 18, the other end of the crank 18 is hinged with a connecting rod 19, the other end of the connecting rod 19 is hinged with a sliding block 20, the sliding block 20 moves up and down along a sliding guide rail 15 on the inner side of the fourth motor mounting seat, and a tamper 11 is connected with the sliding block 20 through a connecting rod 21. The tamping mechanism of the automatic concrete slump testing device moves axially, a crank 18 is driven by a fourth motor 16 to do rotary motion, the crank 18 is connected with a connecting rod 19 for power transmission, and a tamping rod 11 is connected with a sliding block 20 through a connecting rod 21 to realize up-and-down reciprocating motion along a vertical guide rail.
Meanwhile, the other end of the workbench 10 is also provided with a third motor mounting seat 9, a third motor 8 is arranged above the third motor mounting seat 9, and the third motor 8 is connected with the motor through a motor shaft 2: the reduction gear III of the device 1 drives the middle rod 21 to rotate at a constant speed, and the middle rod 21 is matched with the tamper 11 to enable the tamper 11 to move around the Archimedes spiral guide rail so as to realize uniform stirring of the tamper 11 from outside to inside and circumferential movement. Wherein, the upper end of the middle rod 21 is fixed at the center of the reduction gear and rotates along with the gear, and the tamper 11 and the middle rod are vertically arranged.
In this embodiment, the uniform tamping of the tamper 11 against the concrete from the outside to the inside is achieved by a tamping motion consisting of a combination of axial and circumferential movements.
Further, referring to the bucket lifting mechanism, referring to fig. 1 and 4, a slump bucket 14 is arranged above a bottom plate 13, a rammer 11 passes through a workbench to enter the slump bucket 13, a space for the rammer to move is arranged in the middle of the workbench 10, lifting arms 24 are connected to two sides of the slump bucket 14, a first motor 1, a pulley 17 and a winding shaft are arranged on a mounting platform 5, and the first motor 1 is arranged by a motor 2: the reduction gear I and the reduction gear II of the first motor 1 drive the winding shaft to rotate, the steel wire rope 23 on the winding shaft is connected with lifting arms 24 on two sides of the slump barrel 14 through pulleys 17, and the barrel lifting process in the concrete slump test is realized through the rotation of the first motor 1 and the gravity of the slump barrel 14. The lifting motion of the measuring barrel is also linear motion, and compared with the traditional gear-rack structure, chain transmission, belt transmission and screw transmission, the rope lifting mechanism adopted by the structure can ensure the vertical motion of the measuring barrel, and the structure of the concrete slump tester is more smart and compact and is more convenient to use.
The embodiment comprises the following steps when in use:
s1, positioning a workbench in a vertical descending manner
After realizing the first work of loading of collapsing bucket by the manual work, first motor 4 begins to rotate, and first motor 4 passes through 2: the reduction gear set 1 drives the T12 type trapezoidal screw rod 6 to rotate, the T12 type trapezoidal screw rod 6 and the flange nut relatively rotate to enable the tamping mechanism to wholly descend along the linear guide rails on the two sides, and when the bottom end of the tamping rod 11 moves to be close to the bottom plate 13, the sliding block touches the limit switch, and the first motor 4 stops rotating.
S2, tamping rod tamping
The third motor 8 and the fourth motor 16 start to rotate alternately, the third motor 8 passing through 2: the reduction gear set 1 drives the stirring rod 11 to rotate along the Archimedes guide plate, so that the accurate positioning of the stirring rod is realized from outside to inside at 25 positions. Meanwhile, the fourth motor 16 realizes the up-and-down tamping of the tamping rod 11 through a crank sliding block mechanism, and the tamping rod 11 can uniformly and downwards tamp from outside to inside through the combined action of the third motor 8 and the fourth motor 16. When the first tamping is completed, the second motor 4 starts to rotate, so that the tamping mechanism rises by 15cm, and the third motor 8 stops rotating after rotating for 50 circles through the 3mm pitch of the T12 type trapezoidal screw rod 6. And (3) manually feeding for the second time, wherein after the feeding is finished, the fourth motor 16 enables the stirring rod to descend to the position of 10cm of the bottom of the collapsing barrel, the second stirring is started, after the second stirring is finished, the second motor 4 drives the stirring mechanism to lift to the top, manually feeding for the third time, and after the feeding is finished, the fourth motor 16 enables the stirring rod to descend to the position of 20cm of the bottom of the collapsing barrel, and the third stirring is started.
S3, bucket lifting process
After the three-time charging and tamping are completed, the second motor 4 drives the tamping mechanism to lift to the top end, the first motor 1 starts to move, and the tamping mechanism is started to move through a motor 2: the 1 reduction gear set drives the steel wire rope disc to rotate, the steel wire rope 23 is lifted vertically from the horizontal state through the pulley 17, the tail end of the steel wire rope 23 is connected with the collapse bucket arm 14, the collapse bucket 14 is lifted, and the concrete begins to collapse. After a certain time, the camera 12 on the frame 7 starts to collect the residual concrete height, and the result is output after calculation to finish the measurement of the collapse barrel 14.
The archimedes screw is creatively applied to the design of the testing machine, and the creative integrated design of vertical insertion and tamping, layered insertion and tamping, screw positioning and insertion and tamping and integral lifting functions of the slump barrel in the slump test of the concrete is realized, so that accurate positioning and tamping can be realized, the tamping uniformity of the concrete is ensured, the carrying and maintenance are convenient, the consistency of the testing process is high, the cost is low, and the method has important significance for improving the testing accuracy and automation of the slump of the concrete in a construction site
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (8)
1. The automatic concrete slump testing device is characterized by comprising a frame, wherein a lifting mechanism is arranged above the frame, a workbench is arranged below the lifting mechanism, and a mashing and stirring mechanism is arranged on the workbench;
the tamping mechanism drives a crank to do rotary motion through a motor on the frame, the crank is connected with a connecting rod to do power transmission, a tamping rod is connected with a sliding block through the connecting rod, and the sliding block realizes up-and-down reciprocating motion along a vertical guide rail; the motor drives the intermediate rod to rotate at a constant speed, the intermediate rod is connected with the tamper, and the intermediate rod is matched with the tamper to enable the tamper to move around the Archimedes spiral guide rail so as to realize uniform stirring of the tamper from outside to inside.
2. The automatic concrete slump testing device according to claim 1, wherein the lifting mechanism is used for controlling the lifting of the workbench, the top of the rack is provided with a mounting platform, the mounting platform is provided with a motor, the motor drives the screw rod to rotate through a gear, the upper end of the screw rod is matched with a meshed nut on the mounting platform to realize lifting, the lower end of the screw rod is fixedly connected with the connecting plate, and the two ends of the connecting plate are connected with the workbench through a rod piece.
3. The automatic concrete slump testing device according to claim 2, wherein the guide rail is fixed below the mounting platform, the guide rails are embedded at the two ends of the connecting plate, and the working table is driven to realize lifting movement along the guide rails when the screw rod rotates.
4. The automatic concrete slump testing device according to claim 1, further comprising a bucket lifting mechanism, wherein the slump bucket is placed on a bottom plate below the frame, the ramming rod passes through the workbench and enters the slump bucket, and a space for the ramming rod to move is arranged in the middle of the workbench; lifting arms are arranged on two sides of the slump barrel, a motor is arranged on the mounting platform to drive the winding shaft to rotate, and a steel wire rope is arranged on the winding shaft to be connected with the lifting arms on two sides of the slump barrel, so that the barrel lifting process is realized.
5. The automatic concrete slump testing device according to claim 1, wherein motor mounts are provided on both sides of the table, and motors are provided on the motor mounts to provide power for axial movement and circumferential movement, respectively.
6. The automatic concrete slump testing device according to claim 4, wherein the mounting platform is provided with two groups of pulleys, the motor drives the winding shaft to rotate through the reduction gear set, and the steel wire rope on the winding shaft is connected with lifting arms on two sides of the slump barrel through the pulleys.
7. The automatic concrete slump testing device according to claim 1, wherein a camera for collecting the height of the concrete is provided on the frame.
8. The automatic concrete slump testing device according to claim 3, wherein a limit switch is arranged below the guide rail, and when the bottom end of the stirring rod moves to be close to the bottom plate, the limit switch is touched, the motor stops rotating, and the motor stops descending.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321645322.2U CN219935592U (en) | 2023-06-27 | 2023-06-27 | Automatic concrete slump testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321645322.2U CN219935592U (en) | 2023-06-27 | 2023-06-27 | Automatic concrete slump testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347607A (en) * | 2023-12-06 | 2024-01-05 | 天津市堃淏混凝土有限公司 | Concrete slump detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117347607A (en) * | 2023-12-06 | 2024-01-05 | 天津市堃淏混凝土有限公司 | Concrete slump detection device |
| CN117347607B (en) * | 2023-12-06 | 2024-03-19 | 天津市堃淏混凝土有限公司 | Concrete slump detection device |
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