Analogous cement stabilized macadam field compaction device

CN116773300BActive Publication Date: 2026-09-08NANJING TECH UNIV
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Patent Information

Application Number
CN202310745886.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-06-25
Publication Date
2026-09-08
Estimated Expiration
2043-06-25

AI Technical Summary

Technical Problem

[0005]本发明的目的在于提供一种模拟水泥稳定碎石现场压实装置,以解决上述背景技术中提出地将所有的水泥碎石加入搅拌筒中进行搅拌,导致搅拌电机的瞬时负载过大造成搅拌电机损坏和重力按压导致水泥碎石之间的融合度不好造成实验结果不精确的问题

Benefits of technology

[0020] 1. In this invention, after cement crushed stone is placed inside the first and second feeding cylinders, the operator moves the sliding rod inside the sliding groove and the moving groove by turning the knob. When the sliding rod contacts the edge of the moving groove, the gear contacts and meshes with the corresponding rack. Turning the knob causes the corresponding baffle to move through the rack. After the baffle moves, the gap between the control hole and the feeding cylinder becomes smaller, thereby controlling the feeding ratio of different cement crushed stone, which is convenient for subsequent experiments.

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Abstract

The application discloses a kind of simulation cement stabilized macadam field compaction device, including device shell, the top of the device shell is connected with connecting mechanism by drive mechanism transmission, the bottom of the connecting cylinder is fixedly connected with pressing mechanism, the inside of the connecting cylinder is provided with anti-blocking mechanism, the outside of the connecting cylinder is fixedly connected with transmission mechanism, the top of the feed cylinder is fixedly connected with control mechanism, by shaking rod, different sizes of cement macadam can be fully stirred, and blocking of feed cylinder can be prevented by cooperating with second spring, while side feeding side stirring can be realized, different cement macadams can be stirred more fully, and all cement macadams can be added at one time, so that the accuracy of experimental results is not influenced by insufficient stirring, and the service life of second motor is reduced or even directly damaged due to excessive instantaneous load of second motor.
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Description

Technical Field

[0001] This invention relates to the field of cement-aggregate mixing technology, specifically to a device for simulating on-site compaction of cement-stabilized aggregate. Background Technology

[0002] Cement-stabilized crushed stone uses graded crushed stone as aggregate, with a certain amount of cementitious material and sufficient mortar volume to fill the voids in the aggregate, and is spread and compacted according to the interlocking principle. Its compaction degree is close to its density, and its strength mainly relies on the interlocking principle between the crushed stones, while having sufficient mortar volume to fill the voids in the aggregate. It has high initial strength, and its strength increases rapidly with age, quickly forming a slab, thus possessing high strength, good impermeability, and good frost resistance.

[0003] Currently, when mixing cement aggregate of different sizes, the common practice is to calculate the proportions of different sizes of cement aggregate and then directly add all the cement aggregate to the mixing drum for mixing. This can lead to excessive instantaneous load on the mixing motor, causing damage to the motor, and can also result in uneven mixing between different cement aggregates. In addition, when compressing the cement aggregate, it is often done by pressing it directly with gravity, which can lead to poor bonding between the cement aggregates and inaccurate experimental results.

[0004] To address this, a simulated cement-stabilized crushed stone on-site compaction device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a device for simulating the on-site compaction of cement-stabilized crushed stone, in order to solve the problems mentioned in the background art, such as adding all the cement crushed stone into the mixing drum for mixing, which leads to excessive instantaneous load on the mixing motor and damage to the mixing motor, and the poor cohesion between the cement crushed stone due to gravity pressing, resulting in inaccurate experimental results.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for simulating the on-site compaction of cement-stabilized crushed stone, comprising a device shell, wherein the top of the device shell is connected to a connecting mechanism via a drive mechanism, the connecting mechanism comprising a connecting cylinder, and a feeding cylinder is fixedly connected to the top of the connecting cylinder;

[0007] The bottom of the connecting cylinder is fixedly connected to a pressing mechanism for compacting cement aggregate. The pressing mechanism includes a connecting frame fixedly connected to the bottom of the connecting cylinder. A limit rod is slidably limited inside the connecting frame, and a cam is provided inside the connecting frame.

[0008] The connecting cylinder is equipped with an anti-clogging mechanism for uniformly mixing different cement aggregates and preventing the feed cylinder from getting clogged. The anti-clogging mechanism includes a rotating shaft, a connecting rod fixedly connected to the outside of the rotating shaft, a limit groove opened inside the connecting rod, and a shaking rod slidably connected inside the limit groove.

[0009] The outer side of the connecting cylinder is fixedly connected to a transmission mechanism for synchronously driving the anti-blocking mechanism and the pressing mechanism to work.

[0010] The top of the feed cylinder is fixedly connected to a control mechanism for controlling the amount of material falling. The control mechanism includes a control plate fixedly connected to the top of the feed cylinder. A baffle is slidably connected inside the control plate. The baffle has a control hole for use with the feed cylinder.

[0011] Preferably, the top of the device housing has a drive groove, the inside of the device housing has a slot, and a side plate is inserted into the slot. The side plate is made of acrylic sheet.

[0012] Preferably, the drive mechanism includes a first motor fixedly connected to the outside of the device housing, the output shaft of the first motor being drivenly connected to a reciprocating lead screw, a bearing seat being connected to the outside of the reciprocating lead screw via a ball nut pair, a connecting seat being fixedly connected to the outside of the bearing seat, the connecting seat being fixedly connected to the connecting cylinder, and both the reciprocating lead screw and the bearing seat being disposed inside the drive groove.

[0013] Preferably, the bottom of the connecting cylinder is provided with a material discharge trough for discharging material, and the inside of the material discharge trough is fixedly connected with an opening and closing door for controlling the opening and closing of the material discharge trough.

[0014] Preferably, the top of the control mechanism is provided with a storage mechanism for placing different cement aggregates. The storage mechanism includes a first discharge cylinder and a second discharge cylinder that are symmetrically fixedly connected to the top of the control plate. Both the first discharge cylinder and the second discharge cylinder are engaged with the control hole.

[0015] Preferably, a rack is fixedly connected to the inner side of the baffle, a sliding groove is provided inside the control plate, a sliding rod is slidably connected inside the sliding groove, a gear is fixedly connected to the outer side of the sliding rod, the gear meshes with the rack, a moving groove is provided on the top of the control plate, the sliding rod is slidably limited inside the moving groove, and a knob is fixedly connected to the top of the sliding rod.

[0016] Preferably, a pressing rod is fixedly connected to the bottom of the limiting rod, and a first spring is fixedly connected between the limiting rod and the connecting frame.

[0017] Preferably, the transmission mechanism includes a second motor fixedly connected to the outside of the connecting cylinder, the output end of the second motor being rotatably connected to the rotating shaft, and a drive shaft being connected to the outside of the output end of the second motor via a belt pair. The drive shaft is inserted into the inside of the cam and is connected to the cam drive.

[0018] Preferably, a second spring is fixedly connected between the vibrating rod and the limiting groove, the top of the vibrating rod is rounded, and the bottom of the feed cylinder is rounded.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, after cement crushed stone is placed inside the first and second feeding cylinders, the operator moves the sliding rod inside the sliding groove and the moving groove by turning the knob. When the sliding rod contacts the edge of the moving groove, the gear contacts and meshes with the corresponding rack. Turning the knob causes the corresponding baffle to move through the rack. After the baffle moves, the gap between the control hole and the feeding cylinder becomes smaller, thereby controlling the feeding ratio of different cement crushed stone, which is convenient for subsequent experiments.

[0021] 2. In this invention, when the second motor is started, the rotation of the second motor will drive the rotating shaft to rotate. The rotation of the rotating shaft will drive the vibrating rod to rotate through the connecting rod, thereby fully mixing the cement crushed stone of different sizes. When the vibrating rod rotates to contact the feeding cylinder, the inner wall of the connecting cylinder loses its limit on the vibrating rod. Then, under the action of the second spring, the vibrating rod will directly pop out into the inside of the feeding cylinder. At this time, the inside of the feeding cylinder can be shaken and cleared, which can prevent the feeding cylinder from being blocked. Since there is a limit between the vibrating rod and the limiting groove, the extension length of the vibrating rod is fixed. Moreover, the top of the vibrating rod and the inside of the feeding cylinder are both provided with rounded corners. Therefore, when the vibrating rod is rotated to leave the feeding cylinder, there will be no great resistance.

[0022] 3. In this invention, the combined use of the first discharge cylinder, the second discharge cylinder, and the control mechanism can control the discharge ratio of different cement aggregates. The shaking rod can fully mix cement aggregates of different sizes, and the second spring can be used to prevent the feed cylinder from getting blocked. At the same time, it can achieve mixing while discharging, which can make the mixing between different cement aggregates more thorough, and can also avoid adding all the cement aggregates at once, which would cause insufficient mixing and affect the accuracy of the experimental results. The second motor is also subjected to excessive instantaneous load, which would reduce the service life of the second motor or even directly damage it.

[0023] 4. In this invention, the second motor drives the drive shaft to rotate via a belt pair. After the drive shaft rotates, it drives the cam to rotate. When the cam's protrusion contacts the limiting rod, it can push the limiting rod downward. After the limiting rod moves downward, it can flatten the cement gravel inside the device housing through the pressing rod. When the non-protruding part of the cam contacts the limiting rod, it pulls the limiting rod back to its original position under the action of the first spring. As the cam continues to rotate, the limiting rod and the pressing rod can continuously shake and press the cement gravel inside the device housing, accelerating the fusion between different cement gravel, thereby speeding up the experimental progress.

[0024] 5. In this invention, the degree of compaction inside the cement aggregate can be observed in real time through the side plate. The side plate can also be removed from the inside of the slot, which makes it convenient for the experimenter to detect the degree of compaction of the cement aggregate. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention from another perspective;

[0027] Figure 3 This is a three-dimensional schematic diagram of the internal structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the connection structure of the connecting mechanism, control mechanism, pressing mechanism and transmission mechanism of the present invention;

[0029] Figure 5 This is a cross-sectional schematic diagram of the connection structure of the connecting cylinder, anti-blocking mechanism and pressing mechanism of the present invention;

[0030] Figure 6 This is a cross-sectional schematic diagram of the pressing mechanism of the present invention;

[0031] Figure 7 This is a cross-sectional view of the control mechanism of the present invention.

[0032] In the picture:

[0033] 1. Device housing; 11. Slot; 12. Drive slot;

[0034] 2. Drive mechanism; 21. First motor; 22. Reciprocating lead screw; 23. Connecting seat;

[0035] 3. Connecting mechanism; 31. Connecting cylinder; 32. Material drop chute; 33. Opening and closing gate; 34. Feed cylinder;

[0036] 4. Material storage mechanism; 41. First discharge cylinder; 42. Second discharge cylinder;

[0037] 5. Control mechanism; 51. Control panel; 52. Baffle; 53. Control hole; 54. Rack; 55. Knob; 56. Gear; 57. Moving slot;

[0038] 6. Pressing mechanism; 61. Connecting frame; 62. Limiting rod; 63. Pressing rod; 64. Cam; 65. First spring;

[0039] 7. Side panels;

[0040] 8. Transmission mechanism; 81. Second motor; 82. Belt pair; 83. Drive shaft;

[0041] 9. Anti-blocking mechanism; 91. Rotating shaft; 92. Connecting rod; 93. Limiting groove; 94. Second spring; 95. Vibration rod. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1 to 7 This invention provides a technical solution for a simulated cement-stabilized crushed stone on-site compaction device:

[0044] A simulated cement-stabilized crushed stone on-site compaction device includes a device shell 1. The top of the device shell 1 is connected to a connecting mechanism 3 via a drive mechanism 2. The connecting mechanism 3 includes a connecting cylinder 31, and a feed cylinder 34 is fixedly connected to the top of the connecting cylinder 31.

[0045] The bottom of the connecting cylinder 31 is fixedly connected to a pressing mechanism 6 for compacting cement crushed stone. The pressing mechanism 6 includes a connecting frame 61 fixedly connected to the bottom of the connecting cylinder 31. A limit rod 62 is slidably limited inside the connecting frame 61. A cam 64 is provided inside the connecting frame 61.

[0046] The inside of the connecting cylinder 31 is provided with an anti-clogging mechanism 9 for uniformly mixing different cement aggregates and preventing the feed cylinder 34 from clogging. The anti-clogging mechanism 9 includes a rotating shaft 91, a connecting rod 92 fixedly connected to the outside of the rotating shaft 91, a limit groove 93 opened inside the connecting rod 92, and a shaking rod 95 slidably connected inside the limit groove 93.

[0047] A transmission mechanism 8 is fixedly connected to the outside of the connecting cylinder 31 for synchronously driving the anti-blocking mechanism 9 and the pressing mechanism 6 to work;

[0048] The top of the feed cylinder 34 is fixedly connected to a control mechanism 5 for controlling the amount of material falling. The control mechanism 5 includes a control plate 51 fixedly connected to the top of the feed cylinder 34. A baffle 52 is slidably connected inside the control plate 51. A control hole 53 for cooperating with the feed cylinder 34 is opened inside the baffle 52.

[0049] As one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a drive groove 12 is provided on the top of the device housing 1, and a slot 11 is provided inside the device housing 1. A side plate 7 is inserted into the slot 11. The side plate 7 is made of acrylic sheet.

[0050] During operation, since the side plate 7 is made of acrylic, the degree of compaction inside the cement aggregate can be observed in real time through the side plate 7. The side plate 7 can also be removed from the inside of the slot 11, which makes it convenient for the experimenters to test the degree of compaction of the cement aggregate.

[0051] As one embodiment of the present invention, such as Figure 2 and Figure 4 As shown, the drive mechanism 2 includes a first motor 21 fixedly connected to the outside of the device housing 1. The output shaft of the first motor 21 is driven by a reciprocating lead screw 22. The outer side of the reciprocating lead screw 22 is connected to a bearing seat through a ball nut pair. The outer side of the bearing seat is fixedly connected to a connecting seat 23. The connecting seat 23 is fixedly connected to the connecting cylinder 31. The reciprocating lead screw 22 and the bearing seat are both located inside the drive groove 12. The bottom of the connecting cylinder 31 is provided with a material discharge trough 32 for discharging materials. The inside of the material discharge trough 32 is fixedly connected to an opening and closing door 33 for controlling the opening and closing of the material discharge trough 32. The opening and closing door 33 is prior art and can control the opening and closing of the material discharge trough 32. This is common knowledge to those skilled in the art and will not be described in detail here.

[0052] During operation, after the material is added, the feeding port can be closed by the control mechanism 5. After the mixing is completed, the opening and closing door 33 is opened and the first motor 21 is started. The first motor 21 drives the connecting cylinder 31 to move through the reciprocating screw 22, bearing seat and connecting seat 23, which can quickly lay the cement gravel inside the connecting cylinder 31 into the inside of the device shell 1.

[0053] As one embodiment of the present invention, such as Figure 3 As shown, the top of the control mechanism 5 is provided with a storage mechanism 4 for placing different cement crushed stone. The storage mechanism 4 includes a first discharge cylinder 41 and a second discharge cylinder 42 that are symmetrically fixedly connected to the top of the control plate 51. Both the first discharge cylinder 41 and the second discharge cylinder 42 are engaged with the control hole 53.

[0054] During operation, the cement crushed stone is first classified according to size, and then the classified cement crushed stone is put into the first discharge cylinder 41 and the second discharge cylinder 42 respectively. Then, according to the experimental requirements, different proportions of cement crushed stone are put in for the experiment, so as to obtain the optimal ratio.

[0055] As one embodiment of the present invention, such as Figure 3 and Figure 7 As shown, a rack 54 is fixedly connected to the inner side of the baffle 52, a sliding groove is provided inside the control plate 51, a sliding rod is slidably connected inside the sliding groove, a gear 56 is fixedly connected to the outer side of the sliding rod, the gear 56 meshes with the rack 54, a moving groove 57 is provided on the top of the control plate 51, the sliding rod is slidably limited inside the moving groove 57, and a knob 55 is fixedly connected to the top of the sliding rod.

[0056] During operation, after placing cement crushed stone into the first discharge cylinder 41 and the second discharge cylinder 42, the size of the corresponding control hole 53 and the feed cylinder 34 are controlled according to the corresponding ratio. The operator moves the slide rod inside the slide groove and the moving groove 57 by turning the knob 55. When the slide rod contacts the edge of the moving groove 57, the gear 56 contacts and meshes with the corresponding rack 54. The operator turns the knob 55 according to the required ratio. After the knob 55 rotates, it drives the corresponding baffle 52 to move through the rack 54. After the baffle 52 moves, the gap between the control hole 53 and the feed cylinder 34 becomes smaller, so that the discharge ratio of different cement crushed stone can be quickly controlled, which is convenient for subsequent experiments.

[0057] As one embodiment of the present invention, such as Figure 5 and Figure 6 As shown, a pressing rod 63 is fixedly connected to the bottom of the limiting rod 62, and a first spring 65 is fixedly connected between the limiting rod 62 and the connecting frame 61.

[0058] During operation, after the cam 64 rotates, when its protruding part contacts the limiting rod 62, it can push the limiting rod 62 downward. After the limiting rod 62 moves downward, it can flatten the cement gravel inside the device housing 1 through the pressing rod 63. When the non-protruding part of the cam 64 contacts the limiting rod 62, the limiting rod 62 is pulled back to its original position under the action of the first spring 65. As the cam 64 continues to rotate, the cement gravel inside the device housing 1 can be continuously shaken and pressed through the limiting rod 62 and the pressing rod 63. This pressing method can also accelerate the fusion between different cement gravel.

[0059] As one embodiment of the present invention, such as Figure 3 , Figure 4 and Figure 5 As shown, the transmission mechanism 8 includes a second motor 81 fixedly connected to the outside of the connecting cylinder 31. The output end of the second motor 81 is rotatably connected to the rotating shaft 91. The outside of the output end of the second motor 81 is connected to a drive shaft 83 via a belt pair 82. The drive shaft 83 is inserted into the inside of the cam 64 and is connected to the cam 64 in a transmission manner.

[0060] During operation, the second motor 81 works continuously, so the second motor 81 drives the drive shaft 83 to rotate through the belt pair 82. After the drive shaft 83 rotates, it drives the cam 64 to rotate.

[0061] As one embodiment of the present invention, such as Figure 5 As shown, a second spring 94 is fixedly connected between the vibrating rod 95 and the limiting groove 93. The top of the vibrating rod 95 is rounded, and the bottom of the feed cylinder 34 is rounded.

[0062] During operation, the second motor 81 is then started. The rotation of the second motor 81 drives the rotating shaft 91 to rotate, which in turn drives the connecting rod 92 to rotate. Because a second spring 94 is installed between the limiting groove 93 and the vibrating rod 95, the vibrating rod 95 is pressed against the inner wall of the connecting cylinder 31 under the action of the second spring 94. When the connecting rod 92 rotates, it drives the vibrating rod 95 to rotate, thus fully mixing cement aggregates of different sizes. When the vibrating rod 95 rotates to contact the feed cylinder 34, the connecting rod 92... When the inner wall of the receiving cylinder 31 loses its limit on the vibrating rod 95, the vibrating rod 95 will pop directly into the inside of the feeding cylinder 34 under the action of the second spring 94. At this time, the inside of the feeding cylinder 34 can be vibrated and cleared, which can prevent the feeding cylinder 34 from becoming blocked. Since there is a limit between the vibrating rod 95 and the limiting groove 93, the extension length of the vibrating rod 95 is fixed. Moreover, the top of the vibrating rod 95 and the inside of the feeding cylinder 34 are both provided with rounded corners. Therefore, when the vibrating rod 95 is rotated to leave the feeding cylinder 34, there will be no great resistance.

[0063] By using the first discharge cylinder 41, the second discharge cylinder 42, and the control mechanism 5 together, the discharge ratio of different cement aggregates can be controlled. The shaking rod 95 can fully mix cement aggregates of different sizes. It can also be used in conjunction with the second spring 94 to prevent the feed cylinder 34 from getting blocked. At the same time, it can achieve mixing while discharging, which can make the mixing between different cement aggregates more thorough and avoid adding all the cement aggregates at once, which would cause insufficient mixing and affect the accuracy of the experimental results. The second motor 81 is overloaded, which can reduce the service life of the second motor 81 or even cause it to be damaged directly.

[0064] Working principle: During operation, the cement crushed stone is first classified according to size, and then the classified cement crushed stone is put into the first discharge cylinder 41 and the second discharge cylinder 42 respectively. Then, according to the experimental requirements, different proportions of cement crushed stone are put in for the experiment, so as to obtain the optimal ratio.

[0065] After the cement crushed stone is placed inside the first discharge cylinder 41 and the second discharge cylinder 42, the size of the corresponding control hole 53 and the feed cylinder 34 is controlled according to the corresponding ratio. The operator moves the slide rod inside the slide groove and the moving groove 57 by turning the knob 55. When the slide rod contacts the edge of the moving groove 57, the gear 56 contacts and meshes with the corresponding rack 54. The knob 55 is turned according to the required ratio. After the knob 55 is turned, the rack 54 drives the corresponding baffle 52 to move. After the baffle 52 moves, the gap between the control hole 53 and the feed cylinder 34 will become smaller, so that the discharge ratio of different cement crushed stone can be quickly controlled, which is convenient for subsequent experiments.

[0066] Then, the second motor 81 is started. The rotation of the second motor 81 drives the rotating shaft 91 to rotate, which in turn drives the connecting rod 92 to rotate. Because a second spring 94 is installed between the limiting groove 93 and the vibrating rod 95, the vibrating rod 95 will press against the inner wall of the connecting cylinder 31 under the action of the second spring 94. When the connecting rod 92 rotates, it drives the vibrating rod 95 to rotate, thus fully mixing cement aggregates of different sizes. When the vibrating rod 95 rotates to contact the feed cylinder 34, the connecting cylinder... When the inner wall of 31 loses its limit on the vibrating rod 95, the vibrating rod 95 will pop directly into the inside of the feed cylinder 34 under the action of the second spring 94. At this time, the inside of the feed cylinder 34 can be vibrated and cleared, which can prevent the feed cylinder 34 from becoming blocked. Since there is a limit between the vibrating rod 95 and the limiting groove 93, the extension length of the vibrating rod 95 is fixed. Moreover, the top of the vibrating rod 95 and the inside of the feed cylinder 34 are both provided with rounded corners. Therefore, when the vibrating rod 95 is rotated to leave the feed cylinder 34, there will be no great resistance.

[0067] By using the first discharge cylinder 41, the second discharge cylinder 42 and the control mechanism 5 together, the discharge ratio of different cement crushed stones can be controlled. The shaking rod 95 can fully mix cement crushed stones of different sizes. It can also be used in conjunction with the second spring 94 to prevent the feed cylinder 34 from getting blocked. At the same time, it can achieve mixing while discharging, which can make the mixing between different cement crushed stones more thorough and avoid adding all the cement crushed stones at once, which would cause insufficient mixing and affect the accuracy of the experimental results. The second motor 81 is overloaded, which can reduce the service life of the second motor 81 or even cause it to be directly damaged.

[0068] After feeding is complete, the feeding port can be closed via control mechanism 5. After mixing is complete, the opening and closing door 33 is opened, and the first motor 21 is started. The first motor 21 drives the connecting cylinder 31 to move via the reciprocating screw 22, bearing seat, and connecting seat 23, which can quickly lay the cement and gravel inside the connecting cylinder 31 into the interior of the device shell 1. During this process, since the second motor 81 is working continuously, the second motor 81 will drive the drive shaft 83 to rotate via the belt pair 82. After the drive shaft 83 rotates, it will drive the cam 64 to rotate. After cam 64 rotates, when its protruding part contacts the limiting rod 62, it can push the limiting rod 62 to move down. After the limiting rod 62 moves down, it can flatten the cement gravel inside the device housing 1 through the pressing rod 63. When the non-protruding part of cam 64 contacts the limiting rod 62, it pulls the limiting rod 62 back to its original position under the action of the first spring 65. As cam 64 continues to rotate, the cement gravel inside the device housing 1 can be continuously shaken and pressed through the limiting rod 62 and the pressing rod 63. This pressing method can also accelerate the fusion between different cement gravel.

[0069] Since the side plate 7 is made of acrylic, the degree of compaction inside the cement aggregate can be observed in real time through the side plate 7. The side plate 7 can also be removed from the inside of the slot 11, which makes it convenient for the experimenters to test the degree of compaction of the cement aggregate.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simulated cement stabilized macadam in-place compaction device comprising a device housing (1) characterised in that: The top of the device housing (1) is connected to a connecting mechanism (3) via a drive mechanism (2). The connecting mechanism (3) includes a connecting cylinder (31), and a feeding cylinder (34) is fixedly connected to the top of the connecting cylinder (31). The bottom of the connecting cylinder (31) is fixedly connected to a pressing mechanism (6) for compacting cement crushed stone. The pressing mechanism (6) includes a connecting frame (61) fixedly connected to the bottom of the connecting cylinder (31). The connecting frame (61) is internally connected to a limiting rod (62) and a cam (64) is provided inside the connecting frame (61). The connecting cylinder (31) is provided with an anti-clogging mechanism (9) for uniformly mixing different cement crushed stones and preventing the feed cylinder (34) from clogging. The anti-clogging mechanism (9) includes a rotating shaft (91), and a connecting rod (92) is fixedly connected to the outside of the rotating shaft (91). A limiting groove (93) is opened inside the connecting rod (92), and a shaking rod (95) is slidably connected inside the limiting groove (93). The outer side of the connecting cylinder (31) is fixedly connected to a transmission mechanism (8) for synchronously driving the anti-blocking mechanism (9) and the pressing mechanism (6). The top of the feed cylinder (34) is fixedly connected to a control mechanism (5) for controlling the amount of material falling. The control mechanism (5) includes a control plate (51) fixedly connected to the top of the feed cylinder (34). A baffle (52) is slidably connected inside the control plate (51). A control hole (53) for cooperating with the feed cylinder (34) is opened inside the baffle (52). The transmission mechanism (8) includes a second motor (81) fixedly connected to the outside of the connecting cylinder (31). The output end of the second motor (81) is rotatably connected to the rotating shaft (91). The outside of the output end of the second motor (81) is connected to a drive shaft (83) via a belt pair (82). The drive shaft (83) is inserted into the inside of the cam (64) and is connected to the cam (64) in a transmission manner.

2. The simulated cement-stabilized crushed stone on-site compaction device according to claim 1, characterized in that: The device housing (1) has a drive groove (12) on its top and a slot (11) inside. A side plate (7) is inserted into the slot (11) and the side plate (7) is made of acrylic sheet.

3. The simulated cement-stabilized crushed stone on-site compaction device according to claim 1, characterized in that: The drive mechanism (2) includes a first motor (21) fixedly connected to the outside of the device housing (1). The output shaft of the first motor (21) is driven by a reciprocating screw (22). The outside of the reciprocating screw (22) is connected to a bearing seat through a ball nut pair. The outside of the bearing seat is fixedly connected to a connecting seat (23). The connecting seat (23) is fixedly connected to the connecting cylinder (31). The reciprocating screw (22) and the bearing seat are both located inside the drive groove (12).

4. The simulated cement-stabilized crushed stone on-site compaction device according to claim 1, characterized in that: The bottom of the connecting cylinder (31) is provided with a material discharge trough (32) for discharging material, and an opening and closing door (33) for controlling the opening and closing of the material discharge trough (32) is fixedly connected inside the material discharge trough (32).

5. The simulated cement-stabilized crushed stone on-site compaction device according to claim 1, characterized in that: The top of the control mechanism (5) is provided with a storage mechanism (4) for placing different cement crushed stone. The storage mechanism (4) includes a first discharge cylinder (41) and a second discharge cylinder (42) symmetrically fixedly connected to the top of the control plate (51). Both the first discharge cylinder (41) and the second discharge cylinder (42) are in cooperation with the control hole (53).

6. The simulated cement-stabilized crushed stone on-site compaction device according to claim 1, characterized in that: A rack (54) is fixedly connected to the inner side of the baffle (52). A sliding groove is provided inside the control plate (51). A sliding rod is slidably connected inside the sliding groove. A gear (56) is fixedly connected to the outer side of the sliding rod. The gear (56) meshes with the rack (54). A moving groove (57) is provided on the top of the control plate (51). The sliding rod is slidably limited inside the moving groove (57). A knob (55) is fixedly connected to the top of the sliding rod.

7. The simulated cement-stabilized crushed stone on-site compaction device according to claim 1, characterized in that: A pressing rod (63) is fixedly connected to the bottom of the limiting rod (62), and a first spring (65) is fixedly connected between the limiting rod (62) and the connecting frame (61).

8. The simulated cement-stabilized crushed stone on-site compaction device according to claim 1, characterized in that: A second spring (94) is fixedly connected between the vibrating rod (95) and the limiting groove (93). The top of the vibrating rod (95) is rounded, and the bottom of the feed cylinder (34) is rounded.

Citation Information

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