Gravel recovery vibration screening device

Abstract

The invention relates to the technical field of gravel screening, and discloses a gravel recovery vibration screening device which comprises a first rack and a second rack which are arranged on the ground, and further comprises a shell fixedly installed on the inner side of the first rack, and an installation containing area is arranged on the inner side of the shell; the shell is further provided with a driving component, and one end of the driving component penetrates through and extends into the containing area; the crank connecting rod component is arranged on the shell and is connected with the driving component; the connecting rod assembly is arranged on the crank connecting rod component, and a first screening component is further arranged on the connecting rod assembly; and the cylinder is arranged on the second rack and communicates with the first screening component, and the gravel screened by the first screening component can be transferred to the inner side of the cylinder. The gravel recycling vibration screening device aims at solving the problems that in an existing gravel screening technology, the screening fineness is insufficient, the function is single, and the requirements for diversification and high quality of gravel aggregate of modern constructional engineering are difficult to meet.

Description

Technical Field

[0001] The invention relates to the technical field of sand and gravel screening, in particular to a sand and gravel recovery vibration screening device. Background Art

[0002] Sand and gravel aggregates, as indispensable basic materials in construction projects, include various forms such as sand, pebbles, crushed stones, blocks and rubble stones. Together, they constitute the main body of key structures such as concrete and masonry. In construction engineering practice, the strength and durability of concrete depend to a large extent on the quality and grading of the sand and gravel aggregates used. In order to ensure that the performance of concrete meets expectations, the preparation work before concrete mixing is particularly critical. Among them, scientific and meticulous screening of sand and gravel aggregates is an indispensable part.

[0003] Chinese patent CN110124994A uses a lever and rollers to inflate the screen of the sub-screen assembly and eject stones from it through a discharge outlet. Simultaneously, the discharge outlet can be opened by rotating the lever shaft, and a motor can automatically clean stones, making it convenient, quick, and effective in preventing clogging. However, in current sand and gravel screening technology solutions, the single-shot screening approach significantly limits the diversity and functionality of sand and gravel aggregates. This method can only screen out larger stones, but ignores the wide variety of particle size distributions found in sand and gravel. In fact, sand and gravel of different particle sizes play distinct roles in construction projects, from fine sand for plastering and mortar to coarse crushed stone for high-strength concrete. Each particle size has its own specific application scenario and performance requirements. However, single-shot screening technology fails to fully refine this particle size distribution, resulting in a relatively single function of the separated sand and gravel, which cannot meet complex and changing engineering requirements. This not only limits the flexibility of concrete mix proportions but can also lead to problems such as insufficient structural strength and waste of resources due to particle size mismatch. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems of insufficient screening fineness and single function in the existing sand and gravel screening technology, which is difficult to meet the diverse and high-quality requirements of modern construction projects for sand and gravel aggregates, and to propose a sand and gravel recovery vibration screening device.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A sand and gravel recovery vibration screening device includes a first frame and a second frame arranged on the ground, and further includes:

[0007] The housing is fixedly mounted on the inner side of the first frame, and has an installation and accommodation area on the inner side thereof. The housing is also provided with a driving member having one end passing through and extending into the accommodation area;

[0008] a crank-connecting rod member, disposed on the housing and interconnected with the driving member;

[0009] A connecting rod assembly is provided on the crank-connecting rod member, wherein the connecting rod assembly is further provided with a first screening member;

[0010] A cylinder is provided on the second frame and is in communication with the first screening component, and the sand and gravel screened by the first screening component can be transferred to the inner side of the cylinder;

[0011] The second screening component is arranged inside the cylinder and is used to screen the sand and gravel in the cylinder;

[0012] The third screening component is arranged on the inner side of the second screening component and is used for screening the sand and gravel flowing out of the second screening component to complete multi-stage screening.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, the driving member includes:

[0015] The drive motor is fixedly mounted on the outside of the housing, and its output end passes through and extends into the mounting and accommodating area of ​​the housing;

[0016] A first bevel gear is fixedly mounted on the output end of the drive motor;

[0017] The second bevel gear is fixedly mounted on the crank connecting rod component and meshes with the first bevel gear.

[0018] Furthermore, the shaft of the crank connecting rod member passes through the housing and is rotatably connected to the housing, and the connecting rod assembly includes:

[0019] A disc is fixedly mounted on the end of the crank-connecting rod member and can rotate synchronously with the rotation of the crank-connecting rod member, wherein the number of the discs is two;

[0020] A first connecting rod, one end of which is rotatably connected to the surface of the disc, wherein the other end of the first connecting rod is rotatably connected to a synchronization rod, and the synchronization rod is slidably connected to the outer side of the housing;

[0021] One end of the second connecting rod is rotatably connected to the surface of the synchronization rod. Two second connecting rods are provided on the surface of each second connecting rod. The other end of the second connecting rod is rotatably connected to the third connecting rod.

[0022] Furthermore, a rectangular frame is fixedly installed on the outer side of the shell, the synchronization rod is slidably connected to the inner side of the rectangular frame, a bracket is fixedly installed on the surface of the shell, a slide rail is rotatably connected on the surface of the bracket, and the third connecting rod is slidably connected to the inner side of the slide rail.

[0023] Furthermore, the first screening component includes:

[0024] An inclined discharge hopper is fixedly mounted on the inner side of the first frame, and an end thereof away from the housing is provided with an inclined surface;

[0025] A screening frame is slidably connected to the inclined surface of the inclined discharge hopper, wherein the other end of the third connecting rod is rotatably connected to the screening frame, and a screening outlet is also opened on the surface of the screening frame;

[0026] The first screening net is fixedly installed on the inner side of the screening frame;

[0027] The receiving hopper is fixedly installed on the surface of the shell, and its distribution position corresponds to the screening outlet.

[0028] Furthermore, a spray assembly for reducing dust at the screening frame is further provided in the housing, and the spray assembly includes:

[0029] The water tank is fixedly mounted on the inner side of the shell, and a filling pipe communicating with the water tank is provided on the surface of the water tank;

[0030] a fourth connecting rod, one end of which is rotatably connected to the crankshaft journal of the crank-connecting rod member, and the other end of the fourth connecting rod is rotatably connected to the hinge seat;

[0031] The piston cylinder is fixedly mounted on the inner side of the housing, wherein the inner side of the piston cylinder is slidably connected to a piston rod having one end passing through and extending to the outside of the piston cylinder, and the end of the piston rod located outside the piston cylinder is fixedly connected to the hinge seat;

[0032] The filter box is fixedly mounted on the inner side of the housing, wherein the inner side of the filter box is detachably connected to the filter element;

[0033] a first connecting pipe, one end of which is connected to the filter box, and the other end of which penetrates and extends to the inner side of the water tank;

[0034] a second communicating pipe, one end of which is in communication with the filter box, and the other end of which is in communication with the piston cylinder, wherein a first water inlet one-way valve is further provided on the inner side of the second communicating pipe;

[0035] a third communicating pipe, one end of which is in communication with the piston cylinder, and a second water inlet one-way valve is further provided on the third communicating pipe;

[0036] The spray head is fixedly installed at the opening of the screening frame, wherein the other end of the third connecting pipe is connected with the spray head.

[0037] Furthermore, the second screening component includes:

[0038] A first screen cylinder is provided through the surface of the cylinder, wherein the cylinder and the first screen cylinder are rotatably connected to each other;

[0039] a first pulley fixedly mounted on the surface of the first screen cylinder located outside the cylinder;

[0040] A driving motor is fixedly mounted on the surface of the second frame, wherein a second pulley is fixedly mounted on the output end of the driving motor;

[0041] A transmission belt is arranged on the outer sides of the first pulley and the second pulley;

[0042] The first screening discharge pipe is fixedly installed on the surface of the cylinder, with one end penetrating and extending to the inner side of the cylinder.

[0043] Furthermore, a transfer cylinder is fixedly installed at the discharge point of the inclined discharge hopper, and the other end of the transfer cylinder extends to the inner side of the first screen cylinder. The end of the first screen cylinder away from the transfer cylinder is hinged with a shielding cover.

[0044] Furthermore, the third screening component includes:

[0045] An outer gear ring is fixedly mounted on the outer side of the first screen cylinder;

[0046] Gears are rotatably connected to the inner wall of the cylinder, wherein the number of gears is four and they are equidistantly distributed in a ring shape according to the center of the first screen cylinder, and the gears are meshed with the outer gear ring;

[0047] The second screen cylinder has one end portion rotatably connected to the inner wall of the cylinder, and the other end portion is fixedly mounted with an inner gear ring, the gear and the inner gear ring being meshed with each other;

[0048] The second screening discharge pipe is fixedly installed on the surface of the cylinder, and one end thereof penetrates and extends to the inner side of the cylinder.

[0049] Furthermore, the mesh aperture of the first sieve mesh is larger than the mesh aperture of the first sieve cylinder, and the mesh aperture of the first sieve cylinder is larger than the mesh aperture of the second sieve cylinder.

[0050] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0051] The driving component provided in the present invention cooperates with the crank-connecting rod component and the connecting rod assembly to realize the high-frequency vibration screening function of the first screening component. This design not only improves the screening efficiency, but also realizes the effective separation of sand and gravel aggregates with different particle sizes through precise control of the vibration intensity. Furthermore, a cylinder, a second screening component and a third screening component are provided to form a multi-stage screening system. The cylinder and the first screening component are connected to each other, so that the screened sand and gravel can be smoothly transported to the inside of the cylinder for further screening and processing. The setting of the second screening component and the third screening component respectively carries out detailed screening of sand and gravel in different particle size ranges, thereby obtaining sand and gravel aggregates with a variety of particle size distributions, meeting the requirements of modern construction projects for diversified and high-quality materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a schematic diagram of the overall connection structure of the present invention;

[0053] Figure 2 Schematic diagram of the connection structure between the housing and the driving member of the present invention;

[0054] Figure 3 Schematic diagram of the connection structure between the connecting rod assembly and the first screening component of the present invention;

[0055] Figure 4 Schematic diagram of the connection structure between the second frame and the second screening component of the present invention;

[0056] Figure 5 Schematic diagram of the connection structure between the second frame and the third screening component of the present invention;

[0057] Figure 6 Schematic diagram of the connection structure between the first screening discharge pipe and the second screening discharge pipe of the present invention;

[0058] Figure 7 Schematic diagram of the connection structure of the spray assembly of the present invention.

[0059] In the figure: 1. first frame; 2. second frame; 3. housing; 4. driving member; 41. driving motor; 42. first bevel gear; 43. second bevel gear; 5. crank-connecting rod member; 6. connecting rod assembly; 61. disk; 62. first connecting rod; 63. synchronization rod; 64. second connecting rod; 65. third connecting rod; 7. first screening member; 71. tilted discharge hopper; 72. screening frame; 73. screening outlet; 74. first screening net; 75. receiving hopper; 8. cylinder; 9. second screening member; 91. first screen cylinder; 92. first pulley; 93. Driving motor; 94. Second pulley; 95. Transmission belt; 96. First screening discharge pipe; 10. Third screening component; 101. Outer gear ring; 102. Gear; 103. Second screen cylinder; 104. Inner gear ring; 105. Second screening discharge pipe; 11. Spray assembly; 111. Water tank; 112. Fourth connecting rod; 113. Piston cylinder; 114. Piston rod; 115. Filter box; 116. First connecting pipe; 117. Second connecting pipe; 118. Third connecting pipe; 119. Spray head; 12. Transfer cylinder; 13. Shielding cover. DETAILED DESCRIPTION

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0061] Combine Figure 1-Figure 7 As shown, a sand and gravel recovery vibration screening device of the present invention includes a first frame 1 and a second frame 2 set on the ground, and also includes:

[0062] The housing 3 is fixedly mounted on the inner side of the first frame 1 and has an installation and accommodation area on the inner side. The housing 3 is also provided with a driving member 4 having one end passing through and extending into the accommodation area.

[0063] A crank-connecting rod member 5 is provided on the housing 3 and is connected to the driving member 4;

[0064] A connecting rod assembly 6 is provided on the crank-connecting rod member 5, wherein the connecting rod assembly 6 is further provided with a first screening member 7;

[0065] The cylinder 8 is provided on the second frame 2 and is in communication with the first screening component 7. The sand and gravel screened by the first screening component 7 can be transferred to the inner side of the cylinder 8.

[0066] The second screening member 9 is provided inside the cylinder 8 and is used to screen the sand and gravel in the cylinder 8;

[0067] The third screening component 10 is disposed inside the second screening component 9 and is used to screen the sand and gravel flowing out of the second screening component 9 to complete multi-stage screening.

[0068] After starting the device, the driving component 4 starts to work. It serves as the power source of the entire screening system and transmits power to the crank-connecting rod component 5 through mechanical transmission. After receiving the power, the crank-connecting rod component 5 starts to reciprocate. This motion is further transmitted to the first screening component 7 through the connecting rod assembly 6, causing it to generate high-frequency vibration. Under the high-frequency vibration of the first screening component 7, the input sand and gravel aggregates begin to be screened. The sand and gravel with larger particle size are not easily vibrated and screened due to the effects of weight and inertia, while the sand and gravel with smaller particle size can pass through the screen smoothly to achieve preliminary screening. The screened sand and gravel are transported to the inner side of the cylinder 8 through the transport mechanism, ready for the next level of screening. The sand and gravel entering the cylinder 8 are Then it encounters the second screening component 9, which also adopts the screening principle, but the aperture of the screen is smaller than that of the first screening component 7, so it can further screen out the smaller particle size parts in the sand and gravel. The sand and gravel screened by the second screening component 9 have a finer particle size, and the separated sand and gravel continue to flow into the third screening component 10. The aperture of the screen of the third screening component 10 is the smallest, and it can screen out sand and gravel with the smallest particle size. After three levels of screening, the sand and gravel aggregates are successfully separated into a variety of particle size distributions, which meets the modern construction project's demand for diversified and high-quality sand and gravel aggregates. In the entire screening process, the screening components at all levels ensure the stability and efficiency of screening through reasonable structural design and material selection.

[0069] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 、 Figure 2 As shown; the driving member 4 includes:

[0070] The drive motor 41 is fixedly mounted on the outside of the housing 3, and its output end passes through and extends into the installation and accommodation area of ​​the housing 3;

[0071] The first bevel gear 42 is fixedly mounted on the output end of the drive motor 41;

[0072] The second bevel gear 43 is fixedly mounted on the crank connecting rod member 5 and meshes with the first bevel gear 42. The drive motor 41, as the core power source of the entire screening system, is fixedly mounted on the outside of the housing 3. A first bevel gear 42 is fixedly mounted on the output end of the drive motor 41. When the drive motor 41 is started, it drives the first bevel gear 42 to rotate at high speed. This rotation action is the basis of subsequent mechanical transmission. At the same time, a second bevel gear 43 is also fixedly mounted on an appropriate position of the crank connecting rod member 5. This The second bevel gear 43 and the first bevel gear 42 correspond to each other in spatial position, and the tooth design matches, so that they can be tightly meshed together. When the first bevel gear 42 rotates with the output end of the drive motor 41, it will transmit the rotational power to the crank-connecting rod member 5 through the meshing action with the second bevel gear 43. After receiving the rotational power, the crank-connecting rod member 5 begins to rotate. This rotational motion is further transmitted to the first screening member 7 through the connecting rod assembly 6, causing it to generate high-frequency vibration, thereby achieving effective screening of sand and gravel aggregates.

[0073] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 、 Figure 3 The shaft of the crank connecting rod member 5 passes through the housing 3 and is rotatably connected to the housing 3, and the connecting rod assembly 6 includes:

[0074] A disc 61 is fixedly mounted on the end of the crank-connecting rod member 5 and can rotate synchronously with the rotation of the crank-connecting rod member 5. There are two discs 61.

[0075] A first connecting rod 62, one end of which is rotatably connected to the surface of the disc 61, wherein the other end of the first connecting rod 62 is rotatably connected to a synchronization rod 63, and the synchronization rod 63 is slidably connected to the outer side of the housing 3;

[0076] The second connecting rod 64 has one end rotatably connected to the surface of the synchronization rod 63, and two second connecting rods 64 are provided on the surface of each second connecting rod 64. The other end of the second connecting rod 64 is rotatably connected to the third connecting rod 65. The shaft of the crank connecting rod member 5 passes through the shell 3 and is rotatably connected to the shell 3. This design allows the crank connecting rod member 5 to rotate freely inside the shell 3 after receiving the power from the driving member 4. At the end of the crank connecting rod member 5, two disks 61 are fixedly installed. These two disks 61 rotate synchronously with the rotation of the crank connecting rod member 5, providing a stable power source for subsequent connecting rod movement. The first connecting rod 62 is rotatably connected to the surface of the disk 61. When the disk 61 rotates, it drives the first connecting rod 62 to rotate and displace. This rotation displacement can be converted into subsequent linear sliding and rotational movements through careful design. The other end of the first connecting rod 62 is rotatably connected to the synchronization rod 63. The synchronization rod 63 is designed to be slidably connected to the outside of the shell 3. When the first connecting rod 62 rotates with the rotation of the disc 61, it pushes the synchronization rod 63 to slide on the surface of the shell 3. This sliding displacement is not only stable, but also can achieve a larger stroke and force output through the transmission of the connecting rod. The surface of the synchronization rod 63 is rotatably connected to the second connecting rod 64. It is worth noting that two second connecting rods 64 are provided on the surface of each synchronization rod 63. This design further enhances the stability and force output of the connecting rod assembly 6. When the synchronization rod 63 slides on the shell 3, it drives the second connecting rod 64 to rotate synchronously. The other end of the second connecting rod 64 is rotatably connected to the third connecting rod 65. The third connecting rod 65 serves as the final output end of the connecting rod assembly 6 and is connected to the first screening component 7. When the second connecting rod 64 moves with the sliding and rotation of the synchronization rod 63, it pushes the third connecting rod 65 to perform high-frequency reciprocating motion. This reciprocating motion is ultimately converted into high-frequency vibration of the first screening component 7 through reasonable structural design, thereby realizing effective screening of sand and gravel aggregates.

[0077] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 、 Figure 3As shown; a rectangular frame is fixedly installed on the outside of the shell 3, and the synchronization rod 63 is slidably connected to the inner side of the rectangular frame. A bracket is fixedly installed on the surface of the shell 3, and a slide rail is rotatably connected on the surface of the bracket. The third connecting rod 65 is slidably connected to the inner side of the slide rail. On the outside of the shell 3, a rectangular frame is fixedly installed. This rectangular frame not only provides a stable sliding track for the synchronization rod 63, but also ensures the accuracy and stability of the synchronization rod 63 during the sliding process. The synchronization rod 63, as an important component of the connecting rod assembly 6, is designed to be slidably connected on the inner side of the rectangular frame. When the crank connecting rod member 5 drives the disc 61 and the first connecting rod 62 to rotate, the rotation of the first connecting rod 62 will push the synchronization rod 63 to stably move on the inner side of the rectangular frame. Sliding displacement. At the same time, a bracket is fixedly installed on the surface of the shell 3, and a slide rail is rotatably connected to this bracket. The slide rail provides a stable sliding path for the third link 65. When the synchronization rod 63 slides in the rectangular frame and drives the second link 64 to rotate, the rotation of the second link 64 will further push the third link 65 to slide on the inner side of the slide rail. The design of the slide rail not only ensures the stability of the third link 65 during the sliding process, but also allows the third link 65 to change a certain angle while sliding through its rotational connection. This design enables the third link 65 to better adapt to the rotation action of the second link 64 and convert this rotation action into high-frequency vibration of the first screening component 7.

[0078] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 、 Figure 3 As shown; the first screening member 7 includes:

[0079] The inclined discharge hopper 71 is fixedly mounted on the inner side of the first frame 1 and has an inclined surface at one end thereof away from the housing 3;

[0080] The screening frame 72 is slidably connected to the inclined surface of the inclined discharge hopper 71, wherein the other end of the third connecting rod 65 is rotatably connected to the screening frame 72, and a screening outlet 73 is also opened on the surface of the screening frame 72;

[0081] The first screening net 74 is fixedly mounted on the inner side of the screening frame 72;

[0082] The receiving hopper 75 is fixedly mounted on the surface of the shell 3, and its distribution position corresponds to the screening outlet 73. The inclined discharge hopper 71 is fixedly mounted on the inner side of the first frame 1, and its end away from the shell 3 is designed with an inclined surface. This design facilitates the natural flow of sand and gravel during the screening process. The screening frame 72 is designed to be slidably connected to the inclined surface of the inclined discharge hopper 71. The other end of the third connecting rod 65 is rotationally connected to the screening frame 72. When the third connecting rod 65 moves back and forth with the transmission of the connecting rod assembly 6, it will drive the screening frame 72 to reciprocate along the inclined surface direction of the inclined discharge hopper 71. On the inner side of the screening frame 72, a first screening net 74 is fixedly mounted. This screening net has a specific aperture and can perform preliminary screening of sand and gravel according to particle size. At the same time, the surface of the screening frame 72 is also opened. A screening outlet 73 is provided, and the position of this outlet corresponds to the receiving hopper 75, which is used to discharge sand and gravel with a larger aperture than the first screening mesh 74. When the device starts working, the reciprocating movement of the third connecting rod 65 will drive the screening frame 72 and the first screening mesh 74 to vibrate obliquely. This vibration causes the sand and gravel to continuously move and be screened on the first screening mesh 74. The sand and gravel with a smaller aperture than the first screening mesh 74 will smoothly fall into the inclined discharge hopper 71 and then be transported to the inner side of the cylinder 8 for the next round of screening. The sand and gravel with a larger aperture than the first screening mesh 74 will gradually move toward the screening outlet 73 under the action of the oblique vibration, and finally fall into the receiving hopper 75 through the screening outlet 73. Corresponding collection equipment can be placed at the receiving hopper 75 to collect and process the sand and gravel with a larger aperture than the first screening mesh 74.

[0083] In a preferred embodiment, the present invention can be further configured as follows: Figure 3 、 Figure 7 As shown; the housing 3 is also provided with a spray assembly 11 for dust reduction at the screening frame 72, the spray assembly 11 includes:

[0084] The water tank 111 is fixedly mounted on the inner side of the housing 3 and has a filling pipe on its surface that communicates with the water tank 111;

[0085] A fourth connecting rod 112, one end of which is rotatably connected to the crankshaft journal of the crank-connecting rod member 5, and the other end of the fourth connecting rod 112 is rotatably connected to a hinge seat;

[0086] The piston cylinder 113 is fixedly mounted on the inner side of the housing 3, wherein the inner side of the piston cylinder 113 is slidably connected to a piston rod 114 having one end extending through and outside the piston cylinder 113, and the end of the piston rod 114 located outside the piston cylinder 113 is fixedly connected to the hinge seat;

[0087] The filter box 115 is fixedly mounted on the inner side of the housing 3, wherein the filter element is detachably connected to the inner side of the filter box 115;

[0088] A first connecting pipe 116 , one end of which is connected to the filter box 115 , and the other end of which passes through and extends to the inside of the water tank 111 ;

[0089] A second connecting pipe 117, one end of which is connected to the filter box 115, and the other end of which is connected to the piston cylinder 113, wherein a first water inlet check valve is further provided inside the second connecting pipe 117;

[0090] A third connecting pipe 118, one end of which is connected to the piston cylinder 113. The third connecting pipe 118 is also provided with a second water inlet check valve. The water in the piston cylinder 113 can flow to the third connecting pipe 118 and the second water inlet check valve;

[0091] The spray head 119 is fixedly installed at the opening of the screening frame 72, wherein the other end of the third connecting pipe 118 is connected to the spray head 119. The spray assembly 11 is designed and installed in the shell 3. Its main purpose is to spray dust at the screening frame 72 to reduce dust pollution generated during the screening process. The water tank 111 is fixedly installed on the inner side of the shell 3 as a water source storage device and is connected to the outside through a filling pipe to facilitate water replenishment. When the device starts working, the water in the water tank 111 will flow to the inner side of the filter box 115 through the first connecting pipe 116. The filter box 115 is provided with a detachable filter element for filtering the water quality to ensure the cleanliness of the spray. At the same time, during the rotation of the crank connecting rod member 5, the piston rod 114 will be driven to move back and forth in the piston cylinder 113 through the fourth connecting rod 112. This reciprocating movement makes the piston cylinder 11 3 changes, thereby generating the action of pumping and draining water. When the piston rod 114 moves toward the inside of the piston cylinder 113, the volume of the piston cylinder 113 decreases, forming a negative pressure, so that the water in the filter box 115 is drawn into the piston cylinder 113 through the second connecting pipe 117 and the first water inlet one-way valve. When the piston rod 114 moves toward the outside of the piston cylinder 113, the volume of the piston cylinder 113 increases, forming a positive pressure, so that the water in the piston cylinder 113 is pumped to the spray head 119 through the third connecting pipe 118 and the second water inlet one-way valve. The spray head 119 is fixedly installed at the opening of the screening frame 72. When the water is pumped to the spray head 119, it will be sprayed in the form of mist to spray dust on the screening frame 72. This spray dust reduction method can not only effectively reduce the dust pollution generated during the screening process, but also improve the screening efficiency and ensure the stability and accuracy of the screening process.

[0092] In a preferred embodiment, the present invention can be further configured as follows: Figure 4 、 Figure 5 As shown; the second screening member 9 includes:

[0093] A first screen cylinder 91 is provided through the surface of the cylinder 8, wherein the cylinder 8 and the first screen cylinder 91 are rotatably connected to each other;

[0094] The first pulley 92 is fixedly mounted on the surface of the first screen cylinder 91 located outside the cylinder 8;

[0095] A driving motor 93 is fixedly mounted on the surface of the second frame 2, wherein a second pulley 94 is fixedly mounted on the output end of the driving motor 93;

[0096] The transmission belt 95 is provided on the outside of the first pulley 92 and the second pulley 94;

[0097] The first screening discharge pipe 96 is fixedly mounted on the surface of the cylinder 8, one end of which penetrates and extends to the inner side of the cylinder 8. The first screen drum 91 is designed to penetrate the surface of the cylinder 8 and is connected to the cylinder 8 in a mutually rotatable manner. This design allows the first screen drum 91 to rotate freely in the cylinder 8, thereby achieving effective screening of sand and gravel. The first pulley 92 is fixedly mounted on the surface of the first screen drum 91 located on the outer side of the cylinder 8. At the same time, the driving motor 93 is fixedly mounted on the surface of the second frame 2, and a second pulley 94 is fixedly mounted on the output end thereof. The transmission belt 95 is arranged on the outer sides of the first pulley 92 and the second pulley 94 for transmitting the driving motor 9 3 is powered to drive the first screen drum 91 to rotate. When the device starts working, the motor 93 is started, and the first screen drum 91 is driven to rotate in the cylinder 8 through the transmission of the second pulley 94, the transmission belt 95 and the first pulley 92. At this time, the sand and gravel screened by the first screening net 74 will fall into the rotating first screen drum 91 for further screening. Under the screening action of the first screen drum 91, the sand and gravel smaller than the aperture of the first screen drum 91 will fall downward and flow out to the inner side of the cylinder 8 through the first screening discharge pipe 96. These fine sand and gravel can then be collected for subsequent processing or utilization, while the sand and gravel larger than the aperture of the first screen drum 91 will remain on the inner side of the cylinder 8.

[0098] In a preferred embodiment, the present invention can be further configured as follows: Figure 4 、 Figure 6As shown; a transfer drum 12 is fixedly installed at the discharge of the inclined discharge hopper 71, and the other end of the transfer drum 12 extends to the inner side of the first screen drum 91, and the end of the first screen drum 91 away from the transfer drum 12 is hinged with a shielding cover 13. In the sand and gravel recovery vibration screening device, the inclined discharge hopper 71 serves as a discharge channel after the sand and gravel are initially screened. Its design is connected to the transfer drum 12, and one end of the transfer drum 12 is fixedly installed at the discharge of the inclined discharge hopper 71, and the other end extends to the inner side of the first screen drum 91. This design allows the sand and gravel with a smaller aperture than the first screen drum 74 to fall smoothly into the inclined discharge hopper 71 after screening by the first screening net 74, and be transferred to the first screen drum 91 for further screening through the transfer drum 12. The first screen drum 91 serves as a secondary screening device, and its end away from the transfer drum 12 is hinged with a shielding cover 13. The existence of the shielding cover 13 can not only It can effectively prevent sand and gravel from splashing during the screening process, and can also play a key role in closing and opening when it is necessary to collect sand and gravel with a larger aperture than the first screen cylinder 91. In order to ensure the stability of the shielding cover 13 during the screening process, a corresponding locking mechanism, such as a latch, is also provided between it and the first screen cylinder 91. When the first screen cylinder 91 rotates for screening under the drive of the motor 93, the latch firmly connects the shielding cover 13 to the first screen cylinder 91 to prevent the shielding cover 13 from accidentally opening due to vibration during the screening process. When the screening process is completed and it is necessary to collect sand and gravel with a larger aperture than the first screen cylinder 91, the operator only needs to open the latch and then rotate the shielding cover 13 to easily remove the large-particle sand and gravel remaining on the inside of the first screen cylinder 91. This design not only simplifies the operation process, but also improves work efficiency and ensures the stable operation of the sand and gravel recovery vibration screening device.

[0099] In a preferred embodiment, the present invention can be further configured as follows: Figure 5 、 Figure 6 As shown; the third screening component 10 includes:

[0100] The outer gear ring 101 is fixedly mounted on the outer side of the first screen cylinder 91;

[0101] Gears 102 are rotatably connected to the inner wall of the cylinder 8, wherein the number of gears 102 is four and they are equidistantly distributed in a circular pattern according to the center of the first screen cylinder 91, and the gears 102 are meshed with the outer gear ring 101;

[0102] The second screen cylinder 103 has one end portion rotatably connected to the inner wall of the cylinder 8 and the other end portion fixedly mounted with an inner gear ring 104, with the gear 102 meshing with the inner gear ring 104;

[0103] The second screening discharge pipe 105 is fixedly mounted on the surface of the cylinder 8, one end of which passes through and extends to the inner side of the cylinder 8. The outer gear ring 101 is fixedly mounted on the outer side of the first screen cylinder 91 and rotates with the rotation of the first screen cylinder 91. The gears 102 are rotatably connected to the inner wall of the cylinder 8. There are four of them, and they are distributed in a ring-shaped and equidistant manner according to the center of the first screen cylinder 91. These gears 102 and the outer gear ring 101 are meshed with each other, so that when the first screen cylinder 91 rotates, the gears 102 can be driven to rotate synchronously. The second screen cylinder 103 serves as the core screening component in the third screening member 10. One end of the second screen cylinder is rotatably connected to the inner wall of the cylinder 8, and the other end is fixedly mounted with an inner gear ring 104. This inner gear ring 104 is connected to the gear 10 2 are meshed with each other, so when the gear 102 rotates driven by the outer gear ring 101, it also drives the inner gear ring 104 and the second screen drum 103 to rotate. During the screening process, the sand and gravel screened by the first screen drum 91 will fall into the second screen drum 103. Since the aperture of the second screen drum 103 is smaller than that of the first screen drum 91, the sand and gravel with a larger aperture than that of the second screen drum 103 will be retained inside it. As the second screen drum 103 rotates, it will eventually flow out from the first screening discharge pipe 96 that matches the aperture of the first screen drum 91 to the outside of the cylinder 8 for collection, while the sand and gravel with a smaller aperture than that of the second screen drum 103 will continue to fall downward and will eventually be transmitted to the outside of the cylinder 8 through the second screening discharge pipe 105, thereby achieving further subdivision and collection of the sand and gravel.

[0104] In a preferred embodiment, the present invention can be further configured as follows: Figure 1 、 Figure 4 and Figure 5As shown; the mesh aperture of the first screening mesh 74 is larger than the mesh aperture of the first screening drum 91, and the mesh aperture of the first screening drum 91 is larger than the mesh aperture of the second screening drum 103. This aperture size design gradient makes the entire screening process present a progressive graded screening effect. When sand and gravel enter the screening device, they will first pass through the preliminary screening of the first screening mesh 74. Since the aperture of the first screening mesh 74 is larger, it can allow most of the sand and gravel to pass through, while intercepting larger impurities or stones. These intercepted impurities or stones can then be processed or removed by other means, and the sand and gravel screened by the first screening mesh 74 will continue to fall into the first screening drum 91 for further processing. For further screening, since the aperture of the first sieve cylinder 91 is smaller than that of the first sieve net 74, it can intercept sand and gravel particles that are smaller than the aperture of the first sieve net 74 but larger than its own aperture. These particles continue to roll and collide in the first sieve cylinder 91 as the screen rotates, and ultimately achieve effective grading. Finally, the sand and gravel screened by the first sieve cylinder 91 will enter the second sieve cylinder 103 for final subdivision. Since the aperture of the second sieve cylinder 103 is the smallest, it can intercept all sand and gravel particles larger than its own aperture, while allowing finer sand and gravel particles to pass through. In this way, after three levels of screening, the sand and gravel are divided into multiple levels of different particle sizes, which is convenient for subsequent collection and utilization.

[0105] The process of using the sand and gravel recovery vibration screening device is a multi-stage screening process, which aims to effectively separate sand and gravel according to different particle sizes;

[0106] First, sand and gravel are poured into the inclined discharge hopper 71 located inside the first frame 1. At this time, the drive motor 41 is started, and its output end drives the first bevel gear 42 to rotate. Since the first bevel gear 42 and the second bevel gear 43 are engaged with each other, the second bevel gear 43 also rotates, thereby driving the crank connecting rod member 5 to rotate.

[0107] The rotation of the crank-connecting rod member 5 drives the synchronous rotation of the disc 61. The disc 61 is connected to the synchronization rod 63 via the first connecting rod 62. Therefore, the synchronization rod 63 is driven by the disc 61 to slide on the outside of the housing 3. The sliding of the synchronization rod 63 drives the synchronous rotation of the second connecting rod 64 and the third connecting rod 65.

[0108] The other end of the third connecting rod 65 is rotatably connected to the screening frame 72. Therefore, the screening frame 72 is driven by the third connecting rod 65 to reciprocate along the inclined surface of the inclined discharge hopper 71. This reciprocating movement realizes the oblique vibration of the first screening net 74, so that the sand and gravel are continuously moved on the first screening net 74.

[0109] Under the screening action of the first screening mesh 74, sand and gravel with a smaller aperture than the first screening mesh 74 will fall into the inclined discharge hopper 71 and be transferred to the first screening mesh cylinder 91 through the transfer cylinder 12 for further screening. Sand and gravel with a larger aperture than the first screening mesh 74 will eventually fall into the receiving hopper 75 through the screening outlet 73 under the action of oblique vibration. At this time, corresponding collection equipment can be placed at the receiving hopper 75 to complete the collection of sand and gravel with a larger aperture than the first screening mesh 74.

[0110] At the same time, the motor 93 is started, and its output end drives the first screen drum 91 to rotate through the second pulley 94 and the transmission belt 95. Under the screening action of the first screen drum 91, sand and gravel with a smaller aperture than the first screen drum 91 will fall downward and flow out through the first screening discharge pipe 96 to the inner side of the cylinder 8 for collection, while sand and gravel with a larger aperture than the first screen drum 91 will remain inside the cylinder 8.

[0111] As the first screen drum 91 rotates, since an outer gear ring 101 is fixedly installed on its outer side, it drives the gear 102 meshing with it to rotate. The rotation of the gear 102 drives the rotation of the inner gear ring 104 and the second screen drum 103. Under the screening action of the second screen drum 103, sand and gravel with a larger aperture than the second screen drum 103 will flow out of the first screening discharge pipe 96 to the outside of the cylinder 8, while sand and gravel with a smaller aperture than the second screen drum 103 will continue to fall downward and eventually be transferred to the outside of the cylinder 8 through the second screening discharge pipe 105 for collection.

[0112] During the entire screening process, the spray assembly 11 will work synchronously to reduce the dust generated during the screening process. The rotation of the crank connecting rod member 5 drives the piston rod 114 to move back and forth in the piston cylinder 113 through the fourth connecting rod 112, thereby pumping the water in the water tank 111 to the filter box 115 for filtration, and then pumping it into the piston cylinder 113. Finally, the third connecting pipe 118 and the spray head 119 are used to spray the screening frame 72 to reduce dust.

[0113] When it is necessary to remove the sand and gravel that is larger than the aperture of the first screen cylinder 91 and remains inside the cylinder 8, the shielding cover 13 can be opened and then rotated to remove the sand and gravel of the corresponding size;

[0114] In summary, the sand and gravel recovery vibration screening device achieves efficient, accurate screening and environmentally friendly treatment of sand and gravel through multi-stage screening and spray dust reduction mechanisms.

[0115] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0116] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A sand and gravel recovery vibration screening device, comprising a first frame (1) and a second frame (2) arranged on the ground, characterized in that: Also includes: The housing (3) is fixedly mounted on the inner side of the first frame (1), and an installation and accommodation area is provided on the inner side of the housing (3). A driving member (4) is also provided on the housing (3), one end of which penetrates through and extends into the accommodation area. A crank connecting rod member (5) is disposed on the housing (3) and is interconnected with the driving member (4); A connecting rod assembly (6) is arranged on the crank connecting rod member (5), wherein the connecting rod assembly (6) is also provided with a first screening member (7); A cylinder (8) is provided on the second frame (2) and is in communication with the first screening member (7), and the sand and gravel screened by the first screening member (7) can be transferred to the inner side of the cylinder (8); A second screening component (9) is arranged inside the cylinder (8) and is used to screen the sand and gravel in the cylinder (8); The third screening component (10) is arranged on the inner side of the second screening component (9) and is used to screen the sand and gravel flowing out of the second screening component (9) to complete multi-stage screening.

2. A sand and gravel recovery vibration screening device according to claim 1, characterized in that: The driving member (4) comprises: A drive motor (41) is fixedly mounted on the outside of the housing (3), with its output end passing through and extending into the mounting and accommodating area of ​​the housing (3); A first bevel gear (42) is fixedly mounted on the output end of the drive motor (41); The second bevel gear (43) is fixedly mounted on the crank connecting rod member (5) and meshes with the first bevel gear (42).

3. The sand and gravel recovery vibration screening device according to claim 1, characterized in that: The shaft of the crank connecting rod member (5) passes through the housing (3) and is rotatably connected to the housing (3). The connecting rod assembly (6) includes: A disc (61) is fixedly mounted on the end of the crank-connecting rod member (5) and can rotate synchronously with the rotation of the crank-connecting rod member (5), wherein the number of the discs (61) is two; A first connecting rod (62), one end of which is rotatably connected to the surface of the disc (61), wherein the other end of the first connecting rod (62) is rotatably connected to a synchronization rod (63), and the synchronization rod (63) is slidably connected to the outside of the housing (3); One end of the second connecting rod (64) is rotatably connected to the surface of the synchronization rod (63), two second connecting rods (64) are provided on the surface of each second connecting rod (64), and the other end of the second connecting rod (64) is rotatably connected to the third connecting rod (65).

4. The sand and gravel recovery vibration screening device according to claim 3, characterized in that: A rectangular frame is fixedly mounted on the outer side of the shell (3), a synchronization rod (63) is slidably connected to the inner side of the rectangular frame, a bracket is fixedly mounted on the surface of the shell (3), a slide rail is rotatably connected to the surface of the bracket, and the third connecting rod (65) is slidably connected to the inner side of the slide rail.

5. The sand and gravel recovery vibration screening device according to claim 3, characterized in that: The first screening member (7) comprises: An inclined discharge hopper (71) is fixedly mounted on the inner side of the first frame (1), and an inclined surface is provided on one end thereof away from the housing (3); A screening frame (72) is slidably connected to the inclined surface of the inclined discharge hopper (71), wherein the other end of the third connecting rod (65) is rotatably connected to the screening frame (72), and a screening outlet (73) is also provided on the surface of the screening frame (72); A first screening net (74) is fixedly mounted on the inner side of the screening frame (72); The receiving hopper (75) is fixedly mounted on the surface of the housing (3), and its distribution position corresponds to the screening outlet (73).

6. The sand and gravel recovery vibration screening device according to claim 5, characterized in that: A spray assembly (11) for reducing dust at the screening frame (72) is also provided in the housing (3), and the spray assembly (11) comprises: A water tank (111) is fixedly mounted on the inner side of the housing (3), and a filling pipe communicating with the water tank (111) is provided on the surface of the water tank; A fourth connecting rod (112), one end of which is rotatably connected to the crankshaft journal of the crank-connecting rod member (5), and the other end of the fourth connecting rod (112) is rotatably connected to a hinge seat; The piston cylinder (113) is fixedly mounted on the inner side of the housing (3), wherein the inner side of the piston cylinder (113) is slidably connected to a piston rod (114) having one end penetrating and extending to the outside of the piston cylinder (113), and the end of the piston rod (114) located outside the piston cylinder (113) is fixedly connected to the hinge seat; A filter box (115) is fixedly mounted on the inner side of the housing (3), wherein a filter element is detachably connected to the inner side of the filter box (115); A first connecting pipe (116), one end of which is connected to the filter box (115), and the other end of which passes through and extends to the inner side of the water tank (111); A second communicating pipe (117), one end of which is in communication with the filter box (115) and the other end of which is in communication with the piston cylinder (113), wherein a first water inlet one-way valve is further provided on the inner side of the second communicating pipe (117); a third communicating pipe (118), one end of which is in communication with the piston cylinder (113); and a second water inlet one-way valve is further provided on the third communicating pipe (118); The spray head (119) is fixedly mounted at the opening of the screening frame (72), wherein the other end of the third connecting pipe (118) is in communication with the spray head (119).

7. The sand and gravel recovery vibration screening device according to claim 5, characterized in that: The second screening member (9) comprises: A first screen cylinder (91) is provided through the surface of the cylinder (8), wherein the cylinder (8) and the first screen cylinder (91) are connected to each other in a rotational manner; A first pulley (92) is fixedly mounted on the surface of the first screen cylinder (91) located outside the cylinder (8); A driving motor (93) is fixedly mounted on the surface of the second frame (2), wherein a second pulley (94) is fixedly mounted on the output end of the driving motor (93); A transmission belt (95) is arranged on the outside of the first pulley (92) and the second pulley (94); The first screening discharge pipe (96) is fixedly mounted on the surface of the cylinder (8), with one end penetrating and extending to the inner side of the cylinder (8).

8. The sand and gravel recovery vibration screening device according to claim 7, characterized in that: A transfer cylinder (12) is fixedly installed at the discharge point of the inclined discharge hopper (71), and the other end of the transfer cylinder (12) extends to the inner side of the first screen cylinder (91), and a shielding cover plate (13) is hingedly connected to the end of the first screen cylinder (91) away from the transfer cylinder (12).

9. The sand and gravel recovery vibration screening device according to claim 8, characterized in that: The third screening member (10) comprises: An outer gear ring (101) is fixedly mounted on the outer side of the first screen cylinder (91); Gears (102) are rotatably connected to the inner wall of the cylinder (8), wherein the number of the gears (102) is four and they are equidistantly distributed in a ring shape according to the center of the first screen cylinder (91), and the gears (102) and the outer gear ring (101) are meshed with each other; A second screen cylinder (103), one end of which is rotatably connected to the inner wall of the cylinder (8), and the other end of which is fixedly mounted with an inner gear ring (104), wherein the gear (102) and the inner gear ring (104) are meshed with each other; The second screening discharge pipe (105) is fixedly mounted on the surface of the cylinder (8), with one end penetrating and extending to the inner side of the cylinder (8).

10. The sand and gravel recovery vibration screening device according to claim 1, characterized in that: The mesh aperture of the first sieve net (74) is larger than the mesh aperture of the first sieve cylinder (91), and the mesh aperture of the first sieve cylinder (91) is larger than the mesh aperture of the second sieve cylinder (103).

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