Automatic testing device for flaky particle content of machine-made sand

Abstract

The utility model relates to the technical field of concrete material testing devices, in particular to an automatic testing device for the content of flaky particles in machine-made sand, which is characterized in that a screening component is arranged on a vibrating mechanism and is connected with a turnover mechanism through the vibrating mechanism, and a metering component is arranged on the front side of the turnover direction corresponding to the screening component; stable shaking of the screening assembly is achieved through the vibration assembly, the screening efficiency is improved, and screening nets with different hole diameters are arranged in all screening bins of the screening assembly and used for separating gravel with different particle sizes. Under the action of the vibrating mechanism, gravel is screened by all layers of screens, accurately divided into multiple particle size grades and stored in all the screening bins respectively, then the screened gravel is accurately poured into all the metering scales through the overturning mechanism, and finally the weight of the gravel of all the particle sizes is rapidly measured through the metering assembly. The whole device is high in automation degree, the screening speed and the metering accuracy are ensured, and the working efficiency of testing the content of the flaky particles of the machine-made sand is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete material testing devices, in particular to an automatic testing device for the content of machine-made sand flake particles. Background Art

[0002] Due to the decreasing natural sand resources and the increasing requirements for environmental protection, machine-made sand has gradually become the main source of sand for concrete production. Compared with natural sand, machine-made sand is produced by mechanical crushing, so its surface is rougher, its particles are irregular and angular, and it contains more flaky particles. The flaky particle content of machine-made sand is crucial to the control of the performance of concrete mixtures. When machine-made sand with irregular particle shape, high angularity and a large number of flaky particles is used to prepare concrete, the contact surface between sand particles and slurry is increased, and the bite force and friction between particles increase, resulting in the concrete requiring more mixing water or slurry to maintain fluidity. At the same time, flaky particles are prone to cause concrete bleeding, which reduces the fluidity and pumpability of concrete, thereby directly or indirectly affecting the strength, long-term performance and durability of concrete.

[0003] Therefore, in the field of construction engineering, the rapid, convenient and accurate testing of the content of sand flake particles is crucial for the quality control of concrete engineering. At present, the test is carried out by combining manual and vibrating screen. The manual and vibrating screen test requires a lot of manpower, is time-consuming and labor-intensive, and has human errors, resulting in high labor costs; and the operators have different experience and skill levels, and the accuracy and stability of the test results cannot be guaranteed; the manual testing speed of sampling, drying, screening and other processes is slow, which cannot meet the needs of large-scale testing, resulting in low work efficiency. Therefore, there is a need for an automatic testing device for the content of machine-made sand flake particles, which can improve the accuracy, stability and efficiency of the test, reduce labor costs, and meet the needs of engineering construction and scientific research. Utility Model Content

[0004] The utility model aims to provide an automatic testing device for the content of machine-made sand flake particles in view of the defects in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an automatic testing device for the content of machine-made sand flake particles, comprising: a flipping mechanism, a vibration mechanism, a screening component and a metering component, wherein the screening component is arranged on the vibration mechanism and connected to the flipping mechanism through the vibration mechanism, and the metering component is arranged at the front side of the flipping direction of the screening component corresponding to the screening component;

[0006] The flip mechanism includes a first motor and a flip frame, the flip frame is connected to the output shaft of the first motor through a flange and rotates synchronously with the first motor, the vibration mechanism includes a second motor, a transmission assembly and a mounting plate, the second motor drives the mounting plate to swing through the transmission assembly;

[0007] The screening assembly is arranged on the mounting plate, and includes a plurality of screening bins stacked in a vertical direction. A material guide trough is arranged on the side wall of the screening bin facing the metering assembly. The metering assembly includes a mounting frame and a metering scale arranged thereon. The metering scale is provided with a plurality of material guide troughs in a first direction corresponding to the material guide troughs. The stacking direction and the first direction of the screening bins are both arranged perpendicular to the rotation axis of the flip frame.

[0008] Furthermore, the guide groove is obliquely inserted on the peripheral outer wall of the screening bin, and its groove opening is arranged obliquely upward;

[0009] A baffle is arranged at the notch of the material guide trough and is rotatably connected to the material guide trough via a hinge. The rotation axis of the baffle is arranged parallel to the stacking direction of the screening bin.

[0010] Furthermore, a driving rod is obliquely inserted on the baffle, and the driving rod is inclined toward the hinge;

[0011] A limiting beam is arranged on the mounting frame along a first direction, and the limiting beam is arranged corresponding to an end of the driving rod away from the baffle.

[0012] Furthermore, the plurality of screening bins are formed by a chassis and a plurality of sieve trays stacked thereon, and a cover plate is provided on the sieve tray away from the chassis;

[0013] A plurality of sieve holes are evenly arranged on the bottom plate of the sieve plate, and the sieve holes on the plurality of sieve plates stacked from top to bottom gradually decrease.

[0014] Furthermore, a clamping ring and an annular groove are respectively provided at the upper and lower ends of the circumferential side wall of the sieve plate, and the annular groove cooperates with the clamping ring;

[0015] The clamping ring and the annular groove are respectively arranged on the sides of the bottom plate and the cover plate facing the sieve plate.

[0016] Furthermore, handles are symmetrically arranged on the peripheral sides of the cover plate, the sieve plate and the bottom plate, and slots are symmetrically arranged on both horizontal sides of the handles;

[0017] The plurality of handles located on the same side of the screening component are clamped and fixed by rectangular clamping frames, and the rectangular clamping frames are symmetrically arranged on both sides of the screen plate.

[0018] Further, the second motor output shaft is vertically arranged, the transmission assembly includes a driving wheel and a transmission shaft arranged thereon, the driving wheel is coaxially arranged at the end of the second motor output shaft, and the transmission shaft is eccentrically arranged on a side of the driving wheel facing the mounting plate;

[0019] A limiting sliding groove is arranged on a side of the mounting plate facing the second motor. The limiting sliding groove passes through the center position of the mounting plate in a radial direction. The transmission shaft is slidably connected to the limiting sliding groove.

[0020] Furthermore, the limiting slide groove is formed by two limiting plates arranged in parallel.

[0021] Furthermore, the transmission assembly and the second motor are respectively arranged on the upper and lower sides of the mounting plane of the mounting seat, a shock-absorbing spring is arranged between the mounting plane of the mounting seat and the mounting plate, and four shock-absorbing springs are arranged on the outer ring of the transmission assembly.

[0022] Furthermore, a first boss and a second boss are respectively provided on the mounting planes of the mounting plate and the mounting seat corresponding to the two ends of the shock absorbing spring.

[0023] The beneficial effects of the utility model are:

[0024] This application constructs an efficient and automated device for testing the content of flake particles in machine-made sand. The vibrating component realizes the stable shaking of the screening component, which improves the screening efficiency. The screening component uses a multi-layer screen to accurately separate sand and gravel of different particle sizes, and then the screened sand and gravel are accurately poured into each measuring scale through the flip mechanism. Finally, the weight of sand and gravel of each particle size is quickly measured through the measuring component. The entire device not only has a high degree of automation, but also ensures the screening speed and measurement accuracy, and improves the work efficiency of the test of the content of flake particles in machine-made sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the automatic testing device for the content of flake particles in machine-made sand in the utility model;

[0027] Figure 2 This is a front view of the automatic testing device for the content of flake particles in machine-made sand in the utility model;

[0028] Figure 3 It is a schematic diagram of the cooperation between the screening component and the vibration mechanism in the utility model;

[0029] Figure 4 It is a schematic diagram of the elevation angle of the screening assembly in the utility model;

[0030] Figure 5 It is a schematic diagram of the explosion structure of the screening component in the utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the sieve plate in the utility model;

[0032] Figure 7 It is a structural schematic diagram of the transmission component in the utility model;

[0033] Figure 8 It is a structural schematic diagram of the metering component in the utility model.

[0034] 1. Flipping mechanism; 11. First motor; 12. Flipping frame; 13. Flange; 2. Vibration mechanism; 21. Second motor; 22. Transmission assembly; 221. Driving wheel; 222. Transmission shaft; 223. Mounting plate; 223a. Limiting plate; 223b. Limiting slide groove; 223c. First boss; 23. Shock-absorbing spring; 24. Mounting seat; 241. Second boss; 3. Screening assembly; 31. Screening bin; 32. Guide trough; 321. Baffle; 322. Hinge; 323. Driving rod; 33. Chassis; 34. Sieve plate; 341. Sieve hole; 342. Snap ring; 343. Ring groove; 35. Cover plate; 36. Handle; 361. Slot; 37. Rectangular card frame; 4. Measuring assembly; 41. Mounting frame; 411. Limiting beam; 42. Measuring scale. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] like Figures 1 to 8 The automatic testing device for the content of flake particles in machine-made sand shown in the figure comprises a flipping mechanism 1, a vibrating mechanism 2, a screening component 3 and a metering component 4, wherein the screening component 3 is arranged on the vibrating mechanism 2 and connected to the flipping mechanism 1 through the vibrating mechanism 2, and the metering component 4 is arranged on the front side of the flipping direction of the screening component 3 corresponding to the flipping direction; the flipping mechanism 1 comprises a first motor 11 and a flipping frame 12, the flipping frame 12 is connected to the output shaft of the first motor 11 through a flange 13 and rotates synchronously with the first motor 11, the vibrating mechanism 2 comprises a second motor 21, a transmission component 22 and a mounting plate 223, and the second motor 21 drives the mounting plate 223 to swing through the transmission component 22; the screening component 3 is arranged on the mounting plate 223, and comprises a plurality of screening bins 31 stacked in a vertical direction, a material guide trough 32 is arranged on the side wall of the screening bin 31 facing the metering component 4, the metering component 4 comprises a mounting frame 41 and a metering scale 42 arranged thereon, a plurality of metering scales 42 are arranged in the first direction corresponding to the material guide trough 32, and the stacking direction and the first direction of the screening bin 31 are both arranged perpendicular to the rotation axis of the flipping frame 12.

[0039] like Figure 1 and Figure 2 As shown, the present application has constructed an efficient and automated device for testing the content of flake particles in machine-made sand. The vibrating assembly realizes the stable shaking of the screening assembly 3, thereby improving the screening efficiency. The screening assembly 3 uses a multi-layer screen to accurately separate sand and gravel of different particle sizes, and then the screened sand and gravel are accurately poured into each measuring scale 42 through the flip mechanism 1. Finally, the weight of sand and gravel of each particle size is quickly measured through the measuring assembly 4. The entire device not only has a high degree of automation, but also ensures the screening speed and the accuracy of measurement, thereby improving the working efficiency of the test of the content of flake particles in machine-made sand.

[0040] In this embodiment, if Figure 3 and Figure 6 As shown, the material guide groove 32 is obliquely inserted on the peripheral outer wall of the screening bin 31, and its groove opening is arranged obliquely upward; a baffle 321 is arranged at the groove opening of the material guide groove 32, and is rotatably connected to the material guide groove 32 through a hinge 322, and the rotation axis of the baffle 321 is arranged parallel to the stacking direction of the screening bin 31.

[0041] The obliquely inserted material guide trough 32 and the baffle 321 can prevent sand and gravel from flying out during the shaking of the screening component 3. The baffle 321 is rotatably connected to the notch position of the material guide trough 32 through the hinge 322, so as to facilitate the closing and opening of the notch. Adding a torsion spring to the rotating shaft of the hinge 322 can maintain the baffle 321 in the closed state of the notch of the material guide trough 32.

[0042] As a preferred embodiment of the above, see Figure 2 As shown, a driving rod 323 is obliquely inserted on the baffle 321 and is tilted toward the hinge 322 ; a limiting beam 411 is arranged on the mounting frame 41 along the first direction and the limiting beam 411 is arranged corresponding to the end of the driving rod 323 away from the baffle 321 .

[0043] During the specific material pouring process, the screening component is driven by the flipping mechanism 1 to make the notch of the material guide trough 32 gradually approach the metering component 4. At this time, the driving rod 323 arranged on the baffle 321 first contacts the limiting beam 411 on the mounting frame 41, and in the process of approaching the metering component 4, the baffle 321 is gradually opened under the action of the driving plate, so that the sand and gravel in the screening bin 31 can be smoothly discharged.

[0044] In this embodiment, if Figure 5 and Figure 6 As shown, multiple screening bins 31 are composed of a chassis 33 and multiple sieve plates 34 stacked thereon, and a cover plate 35 is provided on the sieve plate 34 away from the chassis 33; a plurality of sieve holes 341 are evenly arranged on the chassis 33 of the sieve plate 34, and the sieve holes 341 on the multiple sieve plates 34 stacked from top to bottom gradually decrease.

[0045] Each screening bin 31 is equipped with screens of different apertures for separating sand and gravel of different particle sizes. Under the action of the vibrating mechanism 2, the sand and gravel are screened by each layer of screens and accurately divided into multiple particle size grades, which are retained in each screening bin 31 respectively.

[0046] Furthermore, a snap ring 342 and an annular groove 343 are respectively provided at the upper and lower ends of the circumferential side wall of the sieve plate 34, and the annular groove 343 cooperates with the snap ring 342; and a snap ring 342 and an annular groove 343 are respectively provided on the side of the bottom plate 33 and the cover plate 35 facing the sieve plate 34. The snap connection mode of the snap ring 342 and the annular groove 343 facilitates the installation of the sieve plate 34 and enhances the connection stability of the two adjacent screening bins 31.

[0047] Furthermore, handles 36 are symmetrically arranged on the circumference of the cover plate 35, the sieve plate 34 and the bottom plate 33, and slots 361 are symmetrically arranged on both horizontal sides of the handles 36; the multiple handles 36 located on the same side of the screening assembly 3 are clamped and fixed by rectangular clamping frames 37, and the rectangular clamping frames 37 are symmetrically arranged on both sides of the sieve plate 34. The multiple handles 36 cooperate with the clamping frames to realize the clamping and fixing of the multiple screening bins 31 stacked and arranged, ensuring the stability of the sieve plate 34 during use.

[0048] In this embodiment, if Figure 4 and Figure 7 As shown, the output shaft of the second motor 21 is vertically arranged, and the transmission assembly 22 includes a driving wheel 221 and a transmission shaft 222 arranged thereon, wherein the driving wheel 221 is coaxially arranged at the end of the output shaft of the second motor 21, and the transmission shaft 222 is eccentrically arranged on the side of the driving wheel 221 facing the mounting plate 223; a limiting slide groove 223b is arranged on the side of the mounting plate 223 facing the second motor 21, and the limiting slide groove 223b passes through the center position of the mounting plate 223 in a radial direction, and the transmission shaft 222 is slidably connected with the limiting slide groove 223b. Among them, the limiting slide groove 223b is formed by two limiting plates 223a arranged in parallel.

[0049] When the second motor 21 drives the driving wheel 221 to rotate, the driving shaft 222 performs circular motion. The driving shaft 222 is connected to the mounting plate 223 through the limiting slide groove 223b. This connection mode converts the circular motion of the driving shaft 222 into the swinging motion of the mounting plate 223, thereby realizing the shaking screening of sand and gravel by the screening assembly 3; the eccentric driving shaft 222 cooperates with the limiting slide groove 223b to make the mounting plate 223 swing at a stable amplitude.

[0050] In this embodiment, the transmission assembly 22 and the second motor 21 are respectively arranged on the upper and lower sides of the mounting plane of the mounting seat 24, and a shock absorbing spring 23 is arranged between the mounting plane of the mounting seat 24 and the mounting plate 223, and four shock absorbing springs 23 are arranged on the outer ring of the transmission assembly 22. A first boss 223c and a second boss 241 are respectively arranged on the mounting plane of the mounting plate 223 and the mounting seat 24 corresponding to the two ends of the shock absorbing spring 23. The shock absorbing spring 23 improves the stability of the screening assembly 3 during the shaking process.

[0051] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic testing device for the content of flake particles in machine-made sand, characterized in that: include: A flipping mechanism, a vibrating mechanism, a screening component and a metering component, wherein the screening component is arranged on the vibrating mechanism and connected to the flipping mechanism through the vibrating mechanism, and the metering component is arranged at the front side of the flipping direction of the screening component corresponding to the screening component; The flip mechanism includes a first motor and a flip frame, the flip frame is connected to the output shaft of the first motor through a flange and rotates synchronously with the first motor, the vibration mechanism includes a second motor, a transmission assembly and a mounting plate, the second motor drives the mounting plate to swing through the transmission assembly; The screening assembly is arranged on the mounting plate, and includes a plurality of screening bins stacked in a vertical direction. A material guide trough is arranged on the side wall of the screening bin facing the metering assembly. The metering assembly includes a mounting frame and a metering scale arranged thereon. The metering scale is provided with a plurality of material guide troughs in a first direction corresponding to the material guide troughs. The stacking direction and the first direction of the screening bins are both arranged perpendicular to the rotation axis of the flip frame.

2. The automatic testing device for the content of flake particles in machine-made sand according to claim 1 is characterized in that: The material guide trough is obliquely inserted on the peripheral outer wall of the screening bin, and its notch is arranged obliquely upward; A baffle is arranged at the notch of the material guide trough and is rotatably connected to the material guide trough via a hinge. The rotation axis of the baffle is arranged parallel to the stacking direction of the screening bin.

3. The automatic testing device for the content of flake particles in machine-made sand according to claim 2 is characterized in that: A driving rod is obliquely inserted on the baffle, and the driving rod is inclined toward the hinge; A limiting beam is arranged on the mounting frame along a first direction, and the limiting beam is arranged corresponding to an end of the driving rod away from the baffle.

4. The automatic testing device for the content of flake particles in machine-made sand according to claim 1 is characterized in that: The plurality of screening bins are formed by a base plate and a plurality of sieve trays stacked thereon, and a cover plate is arranged on the sieve tray away from the base plate; A plurality of sieve holes are evenly arranged on the bottom plate of the sieve plate, and the sieve holes on the plurality of sieve plates stacked from top to bottom gradually decrease.

5. The automatic testing device for the content of flake particles in machine-made sand according to claim 4 is characterized in that: A clamping ring and an annular groove are respectively arranged at the upper and lower ends of the circumferential side wall of the sieve plate, and the annular groove cooperates with the clamping ring; The clamping ring and the annular groove are respectively arranged on the sides of the bottom plate and the cover plate facing the sieve plate.

6. The automatic testing device for the content of flake particles in machine-made sand according to claim 4 is characterized in that: Handles are symmetrically arranged on the circumference of the cover plate, the sieve plate and the bottom plate, and slots are symmetrically arranged on both horizontal sides of the handles; The plurality of handles located on the same side of the screening component are clamped and fixed by rectangular clamping frames, and the rectangular clamping frames are symmetrically arranged on both sides of the screen plate.

7. The automatic testing device for the content of flake particles in machine-made sand according to claim 1 is characterized in that: The second motor output shaft is vertically arranged, the transmission assembly comprises a driving wheel and a transmission shaft arranged thereon, the driving wheel is coaxially arranged at the end of the second motor output shaft, and the transmission shaft is eccentrically arranged on a side of the driving wheel facing the mounting plate; A limiting sliding groove is arranged on a side of the mounting plate facing the second motor. The limiting sliding groove passes through the center position of the mounting plate in a radial direction, and the transmission shaft is slidably connected to the limiting sliding groove.

8. The automatic testing device for the content of flake particles in machine-made sand according to claim 7 is characterized in that: The limiting sliding groove is formed by two limiting plates arranged in parallel.

9. The automatic testing device for the content of flake particles in machine-made sand according to claim 1 is characterized in that: The transmission assembly and the second motor are respectively arranged on the upper and lower sides of the mounting plane of the mounting seat, a shock-absorbing spring is arranged between the mounting plane of the mounting seat and the mounting plate, and four shock-absorbing springs are arranged on the outer ring of the transmission assembly.

10. The automatic testing device for the content of flake particles in machine-made sand according to claim 9, characterized in that: A first boss and a second boss are respectively arranged on the mounting planes of the mounting plate and the mounting seat corresponding to the two ends of the damping spring.

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