Cement stabilized macadam base raw material stirring device

Abstract

The utility model discloses a cement stable broken stone base layer raw material stirring device relates to stirring device technical field, including by horizontal stirring box, parallel gear box, stirring axle, stirring arm component's double horizontal shaft stirrer, the outside of stirring axle, stirring arm is provided with anti -clamping material component, the anti -clamping material component is used for the wall scraping operation of the outer wall of stirring axle, stirring arm, the anti -clamping material component includes wall scraping unit, drive unit, the drive unit is used for wall scraping unit to provide reciprocating movement force, and reciprocating movement's wall scraping unit is used for realizing the wall scraping operation of stirring axle, stirring arm. The utility model discloses through setting up anti -clamping material component, through reciprocating movement's scraping material ring piece can scrape wall to stirring axle, when scraping material ring piece is close to stirring arm, and the fan -shaped pusher is inserted to the middle of two stirring arms, realizes the wall scraping of the outer wall of stirring axle in this area, can effectively avoid the material bonding condition of the outer wall of stirring axle.

Description

Technical Field

[0001] This utility model relates to the technical field of mixing devices, specifically a mixing device for cement-stabilized crushed stone base materials. Background Technology

[0002] Cement-stabilized crushed stone base course is a commonly used semi-rigid base course material in road engineering. It is made by mixing crushed stone, cement and water in a certain proportion, spreading and compacting it. It has high strength, rigidity and stability and is widely used in projects such as high-grade highways, urban roads and airport runways.

[0003] Twin-shaft mixers are one of the commonly used mixing equipment for cement-stabilized crushed stone base course materials. When mixing raw materials, there is a situation where materials stick to the mixing shaft. If they are not cleaned in time, it will not only affect the subsequent mixing efficiency, but also affect the service life of the equipment. Based on this, a mixing device for cement-stabilized crushed stone base course materials is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a mixing device for cement-stabilized crushed stone base materials in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for cement-stabilized crushed stone base materials, comprising a twin-shaft mixer consisting of a horizontal mixing box, a parallel gearbox, a mixing shaft, and mixing arms. The parallel gearbox is mounted on the front end of the horizontal mixing box via a bracket. Each of the two output ends of the parallel gearbox is connected to a mixing shaft. The two mixing shafts pass through both ends of the horizontal mixing box and are rotatably connected to it. Multiple sets of mixing arms are fixed along the long side of the mixing shaft. Anti-clamping components are provided on the outer side of the mixing shaft and mixing arms. The anti-clamping components are used to scrape the outer wall of the mixing shaft and mixing arms.

[0006] The anti-seize component includes a wall scraping unit and a drive unit;

[0007] The drive unit is used to provide reciprocating force to the wall scraping unit, which is used to perform wall scraping operations on the stirring shaft and stirring arm.

[0008] As a further embodiment of this utility model: the scraping unit includes a scraping ring block and a fan-shaped pushing block;

[0009] The scraping ring block is slidably sleeved on the outside of the stirring shaft and distributed in the middle of the two sets of stirring arms. The horizontal movement of the scraping ring block is used to scrape the outer wall of the stirring shaft.

[0010] The fan-shaped pusher blocks are symmetrically fixed at both ends of the scraper ring block. Multiple fan-shaped pusher blocks are arranged in a ring around the scraper ring block. The gap between two adjacent fan-shaped pusher blocks is aligned with the position of the stirring arm. When the scraper ring block is close to the stirring arm, the fan-shaped pusher blocks are used to scrape the outer wall of the stirring shaft located in the middle area between two adjacent ring stirring arms.

[0011] As a further embodiment of this utility model: the drive unit includes a horizontal connecting plate, a concave rotating ring, a fixed U-ring, and a hydraulic cylinder;

[0012] The horizontal connecting plate is fixed to the outside of multiple horizontally distributed scraping ring blocks. The horizontal connecting plate extends close to the rear end of the horizontal mixing tank and is fixedly connected to the concave rotating ring. The concave rotating ring is limited and rotatably connected to the fixed U-ring.

[0013] The hydraulic cylinder is fixedly installed at the rear end of the horizontal mixing tank, and the output end of the hydraulic cylinder extends into the interior of the horizontal mixing tank and is fixedly connected to the fixed U-ring. The hydraulic cylinder is used to provide horizontal movement force for the scraping ring block, the fan-shaped pusher block, and the horizontal connecting plate as a whole.

[0014] As a further embodiment of this utility model: the horizontal connecting plate is sleeved on the outer wall of a plurality of horizontally linearly distributed stirring arms, and the horizontal connecting plate is provided in a plurality of such plates along the circumferential direction and the number of such plates matches the number of stirring arms arranged in the circumferential direction.

[0015] As a further improvement of this utility model: at the end of the fixed U-ring away from the concave rotating ring, two symmetrically distributed support guide rods are also fixed, the support guide rods extending through to the rear end of the horizontal mixing tank and slidingly connected to the horizontal mixing tank.

[0016] As a further embodiment of this utility model: the scraper ring block near the front end of the horizontal mixing box has a fan-shaped pusher block fixed at one end, and the two scraper ring blocks near the front end of the horizontal mixing box corresponding to the two mixing shafts have different horizontal lengths, which are used to match the length of the smooth surface of the two mixing shafts near the front end of the horizontal mixing box.

[0017] The stirring shaft has a long smooth surface near the rear end of the horizontal mixing box, which provides space for the movement of the fixed U-ring and the concave rotating ring. The horizontal mixing box is provided with a discharge port below the movement area of ​​the fixed U-ring and the concave rotating ring.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] By setting up an anti-sticking component, the reciprocating scraping ring block can scrape the wall of the mixing shaft. When the scraping ring block approaches the mixing arm, the fan-shaped push block is inserted between the two mixing arms to scrape the outer wall of the mixing shaft in this area, which can effectively prevent material from sticking to the outer wall of the mixing shaft. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the disassembled anti-seize component and the twin-shaft mixer of this utility model;

[0022] Figure 3 This is another perspective view showing the disassembled anti-seize component and twin-shaft mixer of this utility model.

[0023] Figure 4 This is a cross-sectional view of some parts of the anti-seize material assembly of this utility model.

[0024] In the diagram: 1. Twin-shaft mixer; 101. Horizontal mixing tank; 102. Parallel gearbox; 103. Mixing shaft; 104. Mixing arm; 2. Anti-clamping assembly; 201. Scraper ring block; 202. Fan-shaped pusher block; 203. Horizontal connecting plate; 204. Concave rotating ring; 205. Fixed U-ring; 206. Hydraulic cylinder; 207. Support guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 In this embodiment of the present invention, a cement-stabilized crushed stone base material mixing device includes a twin-shaft mixer 1 consisting of a horizontal mixing box 101, a parallel gearbox 102, a mixing shaft 103, and a mixing arm 104. The parallel gearbox 102 is mounted on the front end of the horizontal mixing box 101 by a bracket. The two output ends of the parallel gearbox 102 are respectively connected to a mixing shaft 103. The two mixing shafts 103 pass through both ends of the horizontal mixing box 101 and are rotatably connected to the horizontal mixing box 101. Multiple sets of mixing arms 104 are fixed along the long side of the mixing shaft 103. An anti-clamping component 2 is provided on the outside of the mixing shaft 103 and the mixing arm 104. The anti-clamping component 2 is used to scrape the outer wall of the mixing shaft 103 and the mixing arm 104.

[0027] Anti-sticking assembly 2 includes a wall scraping unit and a drive unit;

[0028] The drive unit is used to provide reciprocating force to the wall scraping unit, which is used to perform wall scraping operations on the stirring shaft 103 and the stirring arm 104.

[0029] The wall scraping unit includes a scraping ring block 201 and a fan-shaped pusher block 202;

[0030] The scraping ring block 201 is slidably sleeved on the outside of the stirring shaft 103 and distributed in the middle of the two sets of stirring arms 104. The horizontal movement of the scraping ring block 201 is used to scrape the outer wall of the stirring shaft 103.

[0031] The fan-shaped pusher blocks 202 are symmetrically fixed at both ends of the scraper ring block 201. Multiple fan-shaped pusher blocks 202 are arranged in a ring around the scraper ring block 201. The gap between two adjacent fan-shaped pusher blocks 202 is aligned with the position of the stirring arm 104. When the scraper ring block 201 is close to the stirring arm 104, the fan-shaped pusher blocks 202 are used to scrape the outer wall of the stirring shaft 103 located in the middle area between two adjacent ring-shaped stirring arms 104.

[0032] The drive unit includes a horizontal connecting plate 203, a concave rotating ring 204, a fixed U-ring 205, and a hydraulic cylinder 206;

[0033] The horizontal connecting plate 203 is fixed to the outside of multiple horizontally distributed scraper rings 201. The horizontal connecting plate 203 extends close to the rear end of the horizontal mixing tank 101 and is fixedly connected to the concave rotating ring 204. The concave rotating ring 204 is limited and rotatedly connected to the fixed U-ring 205.

[0034] The hydraulic cylinder 206 is fixedly installed at the rear end of the horizontal mixing tank 101, and the output end of the hydraulic cylinder 206 extends into the interior of the horizontal mixing tank 101 and is fixedly connected to the fixed U-ring 205. The hydraulic cylinder 206 is used to provide horizontal movement force for the scraping ring block 201, the fan-shaped pusher block 202, and the horizontal connecting plate 203 as a whole.

[0035] In this embodiment, it should be noted that the multiple sets of stirring arms 104 on the two stirring shafts 103 are staggered in the horizontal direction. When the two stirring shafts 103 rotate synchronously in opposite directions, their stirring arms 104 do not interfere with each other. This structure is the conventional structure of the existing twin-shaft horizontal mixer, and its operating principle is the same. It will not be described in detail here.

[0036] During the mixing of raw materials, the hydraulic cylinder 206 can be started at regular intervals. The hydraulic cylinder 206 drives the fixed U-ring 205, concave rotating ring 204, horizontal connecting plate 203, scraping ring block 201, and fan-shaped push block 202 to move horizontally as a whole. The moving scraping ring block 201 can scrape the wall of the mixing shaft 103. When the scraping ring block 201 approaches the mixing arm 104, the fan-shaped push block 202 is inserted into the middle of the two mixing arms 104 to scrape the outer wall of the mixing shaft 103 in this area. In this way, the hydraulic cylinder 206 runs back and forth, which can effectively prevent the material from sticking to the outer wall of the mixing shaft 103.

[0037] At the same time, when the stirring shaft 103 rotates, it can rotate as a whole through the scraper ring block 201, the fan-shaped push block 202, the horizontal connecting plate 203, and the concave rotating ring 204, that is, the anti-sticking component 2 does not affect the operation of the twin-shaft mixer 1.

[0038] Please refer to this carefully. Figures 1-4 The horizontal connecting plate 203 is sleeved on the outer wall of multiple horizontally linearly distributed stirring arms 104. Multiple horizontal connecting plates 203 are arranged along the circumferential direction and the number of stirring arms 104 arranged in the circumferential direction is matched.

[0039] Two symmetrically distributed support guide rods 207 are also fixed at one end of the fixed U-ring 205 away from the concave rotating ring 204. The support guide rods 207 pass through to the rear end of the horizontal mixing tank 101 and are slidably connected to the horizontal mixing tank 101.

[0040] In this embodiment, it should be noted that: two horizontal connecting plates 203 are symmetrically arranged on the two sides of a single stirring arm 104. When the stirring arm 104 moves in a circle with the stirring shaft 103, it can push the horizontal connecting plates 203 to move in a circle synchronously. At the same time, the horizontal connecting plates 203 will not interfere with the stirring arm 104 when they move horizontally.

[0041] The support guide rod 207 is used to provide support and rotation limit for the fixed U-ring 205, and at the same time to guide the horizontal movement of the fixed U-ring 205, thereby ensuring the stability of the fixed U-ring 205.

[0042] Please refer to this carefully. Figures 1-4 The scraper ring block 201 near the front end of the horizontal mixing tank 101 has a fan-shaped pusher block 202 fixed at one end, and the two scraper ring blocks 201 near the front end of the horizontal mixing tank 101 corresponding to the two mixing shafts 103 have different horizontal lengths, which are used to match the length of the smooth surface of the two mixing shafts 103 near the front end of the horizontal mixing tank 101.

[0043] The stirring shaft 103 has a long smooth surface near the rear end of the horizontal mixing tank 101, which provides space for the movement of the fixed U-ring 205 and the concave rotating ring 204. The horizontal mixing tank 101 is provided with a discharge port below the movement area of ​​the fixed U-ring 205 and the concave rotating ring 204.

[0044] In this embodiment, it should be noted that the two stirring shafts 103 have staggered outer stirring arms 104, so the lengths of the smooth surfaces near the front end of the horizontal mixing tank 101 of the two stirring shafts 103 are different, and the length of the smooth surface at the front end of one stirring shaft 103 is greater than the distance between two adjacent stirring arms 104. The length of the foremost scraper ring 201 corresponding to this stirring shaft 103 is greater than the lengths of other scraper rings 201, so as to make the movable stroke of the multiple scraper rings 201 on this stirring shaft 103 consistent.

[0045] The length of the smooth surface at the front end of another stirring shaft 103 is less than the distance between two adjacent stirring arms 104. The length of the foremost scraper ring 201 corresponding to this stirring shaft 103 is less than the length of other scraper rings 201, so as to make the movable stroke of multiple scraper rings 201 on this stirring shaft 103 consistent.

[0046] The discharge port located below the moving area of ​​the fixed U-ring 205 and the concave rotating ring 204 is used to discharge the mixed material. At the same time, it can prevent the material from contacting the fixed U-ring 205 and the concave rotating ring 204, thereby ensuring the relative rotation stability of the fixed U-ring 205 and the concave rotating ring 204.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mixing device for cement-stabilized crushed stone base course materials, comprising a twin-shaft mixer (1) consisting of a horizontal mixing tank (101), a parallel gearbox (102), a mixing shaft (103), and mixing arms (104), wherein the parallel gearbox (102) is mounted on the front end of the horizontal mixing tank (101) via a bracket, and each of the two output ends of the parallel gearbox (102) is connected to a mixing shaft (103), the two mixing shafts (103) passing through both ends of the horizontal mixing tank (101) and being rotatably connected to the horizontal mixing tank (101), and multiple sets of mixing arms (104) fixed along the long side of the mixing shafts (103), characterized in that, An anti-sticking component (2) is provided on the outside of the stirring shaft (103) and the stirring arm (104). The anti-sticking component (2) is used to scrape the outer wall of the stirring shaft (103) and the stirring arm (104). The anti-clamping component (2) includes a wall scraping unit and a drive unit; The drive unit is used to provide reciprocating force to the wall scraping unit, and the reciprocating wall scraping unit is used to perform wall scraping operations on the stirring shaft (103) and the stirring arm (104).

2. The cement-stabilized crushed stone base course mixing device according to claim 1, characterized in that, The scraping unit includes a scraping ring block (201) and a fan-shaped pusher block (202); The scraping ring block (201) is slidably sleeved on the outside of the stirring shaft (103) and distributed in the middle of the two sets of stirring arms (104). The horizontal movement of the scraping ring block (201) is used to scrape the outer wall of the stirring shaft (103). The fan-shaped pusher blocks (202) are symmetrically fixed at both ends of the scraper ring block (201). Multiple fan-shaped pusher blocks (202) are arranged in a ring around the scraper ring block (201). The gap between two adjacent fan-shaped pusher blocks (202) is aligned with the position of the stirring arm (104). When the scraper ring block (201) is close to the stirring arm (104), the fan-shaped pusher blocks (202) are used to scrape the outer wall of the stirring shaft (103) located in the middle area between two adjacent ring stirring arms (104).

3. The cement-stabilized crushed stone base course raw material mixing device according to claim 2, characterized in that, The drive unit includes a horizontal connecting plate (203), a concave rotating ring (204), a fixed U-ring (205), and a hydraulic cylinder (206). The horizontal connecting plate (203) is fixed to the outside of multiple horizontally distributed scraper rings (201). The horizontal connecting plate (203) extends close to the rear end of the horizontal mixing tank (101) and is fixedly connected to the concave rotating ring (204). The concave rotating ring (204) is limited and rotatably connected to the fixed U-ring (205). The hydraulic cylinder (206) is fixedly installed at the rear end of the horizontal mixing tank (101), and the output end of the hydraulic cylinder (206) extends into the interior of the horizontal mixing tank (101) and is fixedly connected to the fixed U-ring (205). The hydraulic cylinder (206) is used to provide horizontal movement force for the scraping ring block (201), the fan-shaped pusher block (202), and the horizontal connecting plate (203) as a whole.

4. The cement-stabilized crushed stone base course raw material mixing device according to claim 3, characterized in that, The horizontal connecting plate (203) is sleeved on the outer wall of a plurality of horizontally linearly distributed stirring arms (104). The horizontal connecting plate (203) is provided in a plurality of circumferential directions and the number of stirring arms (104) is matched in the circumferential direction.

5. The cement-stabilized crushed stone base course raw material mixing device according to claim 3, characterized in that, Two symmetrically distributed support guide rods (207) are also fixed at the end of the fixed U-ring (205) away from the concave rotating ring (204). The support guide rods (207) extend through to the rear end of the horizontal mixing tank (101) and are slidably connected to the horizontal mixing tank (101).

6. The mixing device for cement-stabilized crushed stone base course materials according to claim 1, characterized in that, The scraper ring block (201) near the front end of the horizontal mixing tank (101) has a fan-shaped pusher block (202) fixed at one end, and the two scraper ring blocks (201) corresponding to the two mixing shafts (103) near the front end of the horizontal mixing tank (101) have different horizontal lengths, which are used to match the length of the smooth surface of the two mixing shafts (103) near the front end of the horizontal mixing tank (101); The stirring shaft (103) has a long smooth surface near the rear end of the horizontal mixing tank (101) to provide space for the movement of the fixed U-ring (205) and the concave rotating ring (204), and the horizontal mixing tank (101) is provided with a discharge port below the movement area of ​​the fixed U-ring (205) and the concave rotating ring (204).

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