Mobile vibrating screen material distribution device and method for asphalt pavement paving

Abstract

The present invention relates to road construction equipment, in particular to a mobile vibrating screen material distribution device and method for asphalt pavement paving. It comprises a stirring device, wherein a top mounting plate is mounted on the top of the stirring device, a mounting frame is provided above the top mounting plate, a shock-absorbing assembly is provided between the mounting frame and the top mounting plate, and a screening drum is placed on the mounting frame; a plurality of side discharge pipes are mounted at equal intervals on the outer surface of the screening drum, a bottom discharge hopper is mounted on the bottom of the screening drum, and both the side discharge pipes and the bottom discharge hopper are connected to the stirring device after passing through the top mounting plate via flexible connecting pipes; a bottom bracket is mounted on the bottom of the inner cavity of the screening drum, a vibration motor is mounted on the bottom bracket, a bottom sieve plate is mounted on the top of the vibration motor, and a multi-stage screening mechanism is mounted on the top of the bottom sieve plate. The present invention screens materials more meticulously, thereby improving the utilization efficiency of materials and increasing the service life of the bottom sieve plate and the top sieve plate.

Description

Technical Field

[0001] The invention relates to road construction equipment, in particular to a mobile vibrating screen material distribution device and method for asphalt road paving. Background Art

[0002] Asphalt concrete, commonly known as asphalt concrete, is a mixture made by artificially selecting mineral materials with a certain graded composition, such as crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions.

[0003] In the prior art, before asphalt concrete is mixed and prepared, the stone materials need to be screened by a screening device to separate the stone materials into crushed stones of different grades for the convenience of subsequent processing.

[0004] After searching, Chinese patent publication number CN111877091B discloses an asphalt pavement paving material mixing device, including a shell, a feeding mechanism, a collecting mechanism, a stirring mechanism, a first screening mechanism, a second screening mechanism and a shaking mechanism; the feeding mechanism is used to prevent the material from sliding down and getting stuck, and the first screening mechanism performs preliminary screening and filtering of the material, which is helpful for removing fine sand and gravel, and the screened sand and gravel are further screened under the action of the second screening mechanism, reducing the waste of resources, and the shaking mechanism prevents the first screening mechanism from getting blocked, and the second screening mechanism works to classify and drop the fallen sand and gravel particles, and collect and store them under the action of the collecting mechanism, which is convenient for subsequent use, and the stirring mechanism is used to mix, stir and blend the materials, which is convenient for subsequent pavement paving, and at the same time, the stirring mechanism is helpful for providing power to rotate the first screening mechanism.

[0005] The above-mentioned screening device, during use, screens the material twice. In actual use, different materials may require different screening times. However, the above-mentioned device cannot adjust the screening times in real time according to actual needs. In other words, it cannot screen the material more finely according to actual needs, so as to achieve finer material size classification and thus improve material utilization efficiency in a targeted manner. Therefore, the present application proposes a mobile vibrating screen material distribution device and method for asphalt pavement paving. Summary of the Invention

[0006] The present invention aims to solve the above technical problems, thereby providing a mobile vibrating screen material distribution device and method for asphalt pavement paving, which makes the material particle size specification classification finer, thereby specifically improving material utilization efficiency and reducing construction costs.

[0007] The present invention solves the technical problem by adopting the following technical solution:

[0008] A mobile vibrating screen material distribution device for asphalt pavement paving includes a stirring device, a top mounting plate is installed on the top of the stirring device, a mounting frame is provided above the top mounting plate, a shock-absorbing assembly is provided between the mounting frame and the top mounting plate, and a screening drum is placed on the mounting frame; a plurality of side discharge pipes are installed at equal intervals on the outer surface of the screening drum, a bottom discharge hopper is installed at the bottom of the screening drum, and the side discharge pipes and the bottom discharge hopper are connected to the stirring device after passing through the top mounting plate through a flexible connecting pipe; a bottom bracket is installed at the bottom of the inner cavity of the screening drum, a vibration motor is installed on the bottom bracket, a bottom screen plate is installed on the top of the vibration motor, and a multi-stage screening mechanism is installed on the top of the bottom screen plate.

[0009] The method for using the above-mentioned mobile vibrating screen material distribution device for asphalt pavement paving comprises the following steps:

[0010] S1. First, according to the actual screening requirements, select the corresponding number of top sieve plates and install them on the mounting rods in sequence, and then install the top bracket and cover plate in sequence;

[0011] S2, then inject the material to be screened into the screening cylinder through the feed hopper, and vibrate and screen the material through the action of the vibration motor;

[0012] S3. When the material is injected into the screening cylinder, the material buffer component is used to buffer the poured material and protect the bottom and top sieve plates;

[0013] S4. Materials of different particle sizes fall into the stirring device through the side discharge pipes at different heights. The side discharge pipe can also be connected to an external device through the flexible connecting pipe to receive materials that may not be used in this batching.

[0014] Furthermore, the optimization scheme of the present invention is:

[0015] The mounting frame includes a mounting plate and a support rod, and the shock-absorbing assembly includes a limiting link and a shock-absorbing spring. The mounting plate is circular and has a center hole. The support rod is radially fixed to the outer circumferential surface of the mounting plate. A through hole is provided at the outer end of the support rod. The lower end of the limiting link is connected to the top mounting plate and the upper end vertically passes through the through hole. The limiting link between the support rod and the top mounting plate is provided with a shock-absorbing spring.

[0016] A limiting piece is installed on one end of the limiting link located outside the support rod.

[0017] The multi-stage screening mechanism includes a mounting rod movably mounted on the upper surface of the bottom screen plate, a plurality of top screen plates are sleeved on the outer surface of the mounting rod, and a partition column is installed on the lower surface of the top sieve plate, the partition column is sleeved on the outer surface of the mounting rod, and the length of the partition column is the same as the distance between two adjacent side discharge pipes.

[0018] The upper surfaces of the bottom sieve plate and the top sieve plate are both installed with multiple groups of material buffer assemblies, and the multiple material buffer assemblies are evenly distributed along the axis of the mounting rod. The material buffer assembly includes a support column installed on the upper surface of the bottom sieve plate and the top sieve plate, one end of the support column is movably connected to a rotating shaft, one end of the rotating shaft is connected to a buffer plate, a connecting piece is installed on the side of the buffer plate, and a buffer spring is connected between the connecting piece and the support column.

[0019] A top slot is provided on the upper surface of the screening drum, a top bracket is movably connected to the inner wall of the top slot, and a lower surface of the top bracket is connected to one end of the mounting rod.

[0020] A driving motor is installed on the upper surface of the top bracket, and an output shaft of the driving motor is connected to one end of the mounting rod.

[0021] A cover plate is installed on the top of the screening cylinder, and a feed hopper is installed on the upper surface of the cover plate.

[0022] A pulley chassis is installed on the lower surface of the stirring device.

[0023] Compared with the prior art, the present invention adopting the above technical solution has the following beneficial effects:

[0024] 1) There are multiple types of top sieve plates, corresponding to different particle sizes. Therefore, the appropriate number of top sieve plates can be selected according to actual needs and connected to the mounting rods in sequence through partition columns. The distances between the bottom sieve plates, the top sieve plates, and adjacent top sieve plates are the same as the distances between adjacent side discharge pipes. The side discharge pipes are located at the opening inside the screening cylinder and abut against the upper surface of the top sieve plate, making the screening of the material more detailed, thereby improving the utilization efficiency of the material.

[0025] 2) The screened material is discharged through the side discharge pipe and the bottom discharge hopper. The material flowing out of the side discharge pipe and the bottom discharge hopper can be directly introduced into the stirring device through the flexible connecting pipe. The flexible connecting pipe can also be removed and the side discharge pipe and the bottom discharge hopper can be connected to an external holding device to collect the separated material that is temporarily unused.

[0026] 3) The distance between adjacent buffer plates and the height of the support columns are large, so that materials used in daily life can fall onto the bottom sieve plate or the top sieve plate. When the materials fall, they collide with multiple buffer plates placed at an angle, avoiding direct collision with the bottom sieve plate and the top sieve plate, causing a fixed position of the bottom sieve plate and the top sieve plate to be susceptible to continuous impact, thereby reducing the service life of the bottom sieve plate and the top sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the explosion structure of the present invention;

[0029] Figure 3 Schematic diagram of the internal structure of the screening drum of the present invention;

[0030] Figure 4 This is a schematic structural diagram of the buffer plate of the present invention;

[0031] Figure 5 This is a schematic structural diagram of the top sieve plate of the present invention;

[0032] Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0034] In the figure: stirring device 1; pulley chassis 2; top mounting plate 3; screening drum 4; side discharge pipe 5; bottom discharge hopper 6; flexible connecting pipe 7; mounting frame 8; mounting plate 8-1; support rod 8-2; limiting connecting rod 9; shock-absorbing spring 10; limiting plate 11; top slot 12; bottom bracket 13; vibration motor 14; top bracket 15; mounting rod 16; bottom sieve plate 17; top sieve plate 18; partition column 19; drive motor 20; cover plate 21; feed hopper 22; support column 23; rotating shaft 24; buffer plate 25; connecting plate 26; buffer spring 27. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the accompanying drawings and examples. Example 1

[0036] like Figure 1-7 As shown, this embodiment provides a mobile vibrating screen material distribution device for asphalt pavement paving, which mainly consists of a stirring device 1, a pulley chassis 2, a top mounting plate 3, a screening drum 4, a side discharge pipe 5, a bottom discharge hopper 6, a flexible connecting pipe 7, and a mounting frame 8. The stirring device 1 is a relatively common material mixing device in the prior art to ensure the mixing of various materials.

[0037] A horizontal top mounting plate 3 is installed on the top of the stirring device 1, and a mounting frame 8 is provided above the top mounting plate 3. The mounting frame 8 is mainly composed of a mounting plate 8-1 and a support rod 8-2. The mounting plate 8-1 is circular and has a center hole. Four support rods 8-2 are radially welded to the outer circumference of the mounting plate 8-1, and the outer ends of the support rods 8-2 have through holes. A shock-absorbing assembly is provided between the mounting frame 8 and the top mounting plate 3. The shock-absorbing assembly mainly consists of a limit link 9, a shock-absorbing spring 10 and a limit plate 11. The lower end of the limit link 9 is fixedly connected to the top mounting plate 3, and the upper end of the limit link 9 vertically passes through the through hole of the support rod 8-2. The limit link 9 between the support rod 8-2 and the top mounting plate 3 is equipped with a shock-absorbing spring 10. A limit plate 11 is installed on the end of the limit link 9 located outside the support rod 8-2. The limit plate 11 prevents the mounting frame 8 and the limit link 9 from slipping.

[0038] A screening drum 4 is installed on the top of the mounting plate 8 - 1 of the mounting frame 8 . The screening drum 4 is circular and vertically arranged.

[0039] A plurality of side discharge pipes 5 are installed at equal intervals on the outer surface of the screening drum 4. A bottom discharge hopper 6 is installed at the bottom of the screening drum 4. The lower end of the bottom discharge hopper 6 passes through the center hole of the mounting plate 8-1. Flexible connecting pipes 7 are installed at the outlet ends of the side discharge pipes 5 and the bottom discharge hopper 6. The flexible connecting pipes 7 pass through the top mounting plate 3 and communicate with the interior of the stirring device 1. The screened material is discharged through the side discharge pipes 5 and the bottom discharge hopper 6. Through the action of the flexible connecting pipes 7, the material flowing out of the side discharge pipes 5 and the bottom discharge hopper 6 can be directly introduced into the stirring device 1. The flexible connecting pipes 7 can also be removed and the side discharge pipes 5 and the bottom discharge hopper 6 can be connected to an external holding device to collect the separated material that is temporarily unused.

[0040] A bottom bracket 13 is installed at the bottom of the inner cavity of the screening drum 4, and a vibration motor 14 is installed on the bottom bracket 13. A bottom screen plate 17 is installed on the top of the vibration motor 14, and a multi-stage screening mechanism is installed on the top of the bottom screen plate 17. The vibration motor 14 can drive the screening drum 4 to vibrate as a whole, so that the material is continuously separated into materials of various particle sizes under the action of the multi-stage screening mechanism and the bottom screen plate 17, and the number of material screening stages can be selected according to actual needs, so that the screening of the material is more detailed, thereby improving the utilization efficiency of the material.

[0041] The multi-stage screening mechanism is mainly composed of a mounting rod 16, a top sieve plate 18 and a partition column 19. The mounting rod 16 is movably mounted on the upper surface of the bottom sieve plate 17. A plurality of top sieve plates 18 are sleeved on the outer surface of the mounting rod 16, and the bottom sieve plates 17 and the top sieve plates 18 are movably connected to the inner wall of the screening drum 4. A partition column 19 is installed on the lower surface of the top sieve plate 18. The partition column 19 is sleeved on the outer surface of the mounting rod 16, and the length of the partition column 19 is the same as the distance between two adjacent side discharge pipes 5. There are multiple types of top sieve plates 18, corresponding to different particle sizes, so that the appropriate number of top sieve plates 18 can be selected according to actual needs, and they are connected to the mounting rod 16 in sequence through the partition column 19. The distance between the bottom sieve plate 17, the top sieve plate 18 and adjacent top sieve plates 18 is the same as the distance between adjacent side discharge pipes 5, and the side discharge pipe 5 is located at the opening inside the screening drum 4 and abuts against the upper surface of the top sieve plate 18.

[0042] The upper surfaces of the bottom sieve plate 17 and the top sieve plate 18 are both equipped with multiple sets of material buffer components, which are evenly distributed along the axis of the mounting rod 16. The material buffer components are mainly composed of a support column 23, a rotating shaft 24, a buffer plate 25 and a connecting piece 26. The support column 23 is respectively installed on the upper surface of the bottom sieve plate 17 and the top sieve plate 18. One end of the support column 23 is movably connected to the rotating shaft 24, and one end of the rotating shaft 24 is connected to the buffer plate 25. A connecting piece 26 is installed on the side of the buffer plate 25. The connecting piece 26, the support column 23 is connected with a buffer spring 27, and the distance between adjacent buffer plates 25 and the height of the support column 23 are large, so that materials used in daily life can fall onto the bottom sieve plate 17 or the top sieve plate 18. When the material falls, it collides with the multiple buffer plates 25 placed at an angle, avoiding direct collision with the bottom sieve plate 17 and the top sieve plate 18, causing a fixed position of the bottom sieve plate 17 and the top sieve plate 18 to be susceptible to continuous impact, thereby reducing the service life of the bottom sieve plate 17 and the top sieve plate 18.

[0043] A top slot 12 is provided on the upper surface of the screening drum 4, and a top bracket 15 is movably connected to the inner wall of the top slot 12. The lower surface of the top bracket 15 is connected to one end of the mounting rod 16. The mounting rod 16 can drive the material buffer assembly to rotate along the mounting rod 16, so that the falling material can collide with the buffer plates 25 at different positions, avoiding the problem of continuous impact on the buffer plate 25 at a fixed position.

[0044] A driving motor 20 is mounted on the upper surface of the top bracket 15 . The output shaft of the driving motor 20 is connected to one end of the mounting rod 16 . The driving motor 20 can drive the rotation of the material buffer assembly.

[0045] A cover plate 21 is installed on the top of the screening drum 4, and a feed hopper 22 is installed on the upper surface of the cover plate 21. The cover plate 21 is movably connected to the screening drum 4, which facilitates the feeding of materials through the feed hopper 22 and the adjustment of the multi-stage screening mechanism.

[0046] A pulley chassis 2 is installed on the lower surface of the stirring device 1. The pulley chassis 2 is a pulley structure with a self-locking structure in the prior art. While facilitating the movement of the device, it can also prevent the device from shaking when in use through the self-locking structure. Example 2

[0047] The method for using the mobile vibrating screen material distribution device for asphalt pavement paving is as follows:

[0048] S1. First, according to the actual screening requirements, select the corresponding number of top sieve plates 18 and install them on the mounting rods 16 in sequence, and then install the top bracket 15 and cover plate 21 in sequence;

[0049] S2, then the material to be screened is injected into the screening drum 4 through the feed hopper 22, and the material is vibrated and screened by the action of the vibration motor 14;

[0050] S3. When the material is injected into the screening drum 4, the material buffer assembly buffers the poured material and protects the bottom sieve plate 17 and the top sieve plate 18;

[0051] S4. Materials of different particle sizes fall into the stirring device 1 through the side discharge pipes 5 at different heights. The side discharge pipe 5 can also be connected to an external device through the flexible connecting pipe 7 to receive materials that may not be used in this batching.

[0052] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent structural changes made using the contents of the present invention description and drawings are included in the scope of the present invention.

Claims

1. A mobile vibrating screen material distribution device for asphalt pavement paving, including a stirring device, characterized in that: A top mounting plate is installed on the top of the stirring device, a mounting frame is provided above the top mounting plate, a shock absorbing assembly is provided between the mounting frame and the top mounting plate, and the screening drum is placed on the mounting frame; A plurality of side discharge pipes are installed at equal intervals on the outer surface of the screening drum, and a bottom discharge hopper is installed at the bottom of the screening drum. The side discharge pipes and the bottom discharge hopper are connected to the stirring device after passing through the top mounting plate through a flexible connecting pipe; A bottom bracket is installed at the bottom of the inner cavity of the screening cylinder, a vibration motor is installed on the bottom bracket, a bottom screen plate is installed on the top of the vibration motor, and a multi-stage screening mechanism is installed on the top of the bottom screen plate; The mounting frame includes a mounting plate and a support rod, and the shock-absorbing assembly includes a limiting link and a shock-absorbing spring. The mounting plate is circular and has a center hole. The support rod is radially fixed to the outer circumferential surface of the mounting plate. A through hole is formed at the outer end of the support rod. The lower end of the limiting link is connected to the top mounting plate and the upper end vertically passes through the through hole. The limiting link between the support rod and the top mounting plate is sleeved with a shock-absorbing spring. The multi-stage screening mechanism includes a mounting rod movably mounted on the upper surface of the bottom sieve plate, a plurality of top sieve plates are sleeved on the outer surface of the mounting rod, and a partition column is mounted on the lower surface of the top sieve plate, the partition column is sleeved on the outer surface of the mounting rod, and the length of the partition column is the same as the distance between two adjacent side discharge pipes; The upper surfaces of the bottom sieve plate and the top sieve plate are both installed with multiple groups of material buffer assemblies, and the multiple material buffer assemblies are evenly distributed along the axis of the mounting rod. The material buffer assembly includes a support column installed on the upper surface of the bottom sieve plate and the top sieve plate, one end of the support column is movably connected to a rotating shaft, one end of the rotating shaft is connected to a buffer plate, a connecting piece is installed on the side of the buffer plate, and a buffer spring is connected between the connecting piece and the support column.

2. The mobile vibrating screen material distribution device for asphalt pavement paving according to claim 1, characterized in that: A limiting piece is installed on one end of the limiting link located outside the support rod.

3. The mobile vibrating screen material distribution device for asphalt pavement paving according to claim 1, characterized in that: A top slot is provided on the upper surface of the screening drum, a top bracket is movably connected to the inner wall of the top slot, and a lower surface of the top bracket is connected to one end of the mounting rod.

4. The mobile vibrating screen material distribution device for asphalt pavement paving according to claim 3, characterized in that: A driving motor is installed on the upper surface of the top bracket, and an output shaft of the driving motor is connected to one end of the mounting rod.

5. The mobile vibrating screen material distribution device for asphalt pavement paving according to claim 1, characterized in that: A cover plate is installed on the top of the screening cylinder, and a feed hopper is installed on the upper surface of the cover plate.

6. The mobile vibrating screen material distribution device for asphalt pavement paving according to claim 1, characterized in that: A pulley chassis is installed on the lower surface of the stirring device.

7. A method for using the mobile vibrating screen material distribution device for asphalt pavement paving according to any one of claims 1 to 6, comprising the following steps: S1. First, according to the actual screening requirements, select the corresponding number of top sieve plates and install them on the mounting rods in sequence, and then install the top bracket and cover plate in sequence; S2, then inject the material to be screened into the screening cylinder through the feed hopper, and vibrate and screen the material through the action of the vibration motor; S3. When the material is injected into the screening cylinder, the material buffer component is used to buffer the poured material and protect the bottom and top sieve plates; S4. Materials of different particle sizes fall into the stirring device through the side discharge pipes at different heights. The side discharge pipe can also be connected to an external device through the flexible connecting pipe to receive materials that may not be used in this batching.

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