Highway roadbed compaction device

Abstract

The present invention provides a highway roadbed compaction device, comprising: a movable frame, a thickness adjustment mechanism installed above the frame, a compaction mechanism installed below the frame, the compaction mechanism comprising a compaction plate, a first support plate and a cam mechanism, the cam mechanism installed below the first support plate, the compaction plate placed below the cam mechanism, the rotation of the cam mechanism drives the compaction plate to reciprocate, the thickness adjustment mechanism is connected to the first support plate to adjust the compaction thickness of the compaction plate. The highway roadbed compaction device provided by the present invention realizes a simple and efficient compaction process by driving the compaction plate to reciprocate through the eccentric rotation of the cam mechanism, and realizes compaction thickness adjustment of the compaction plate by connecting the thickness adjustment mechanism to the first support plate, thereby adapting to roadbeds with different thickness requirements, and having stronger applicability.

Description

Technical Field

[0001] The invention relates to the technical field of highway construction, and in particular to a highway roadbed compacting device. Background Art

[0002] Highway subgrade, the subgrade is a building that supports the track and transfers the train load. The engineering of constructing railway subgrade, subgrade protection, reinforcement buildings, subgrade retaining buildings and subgrade drainage facilities is called railway subgrade engineering. Subgrade engineering The subgrade body can be divided into embankments and cuttings according to the cross-sectional form. The embankment is a soil body filled with earth and stone on the ground. The top surface of the embankment is the subgrade surface, which is higher than the natural ground, and the two sides are the embankment slopes; the cutting is excavated into a cutting by the mountain, and the bottom of the cutting is the subgrade surface, which is lower than the natural ground, and the two sides are the cutting slopes. In addition, under certain conditions, the natural ground can be directly used as the subgrade surface without filling and excavation.

[0003] In some engineering construction, such as roadbed, dam filling and construction site backfill, soil is often used as building materials. The original structure and state of soil change due to excavation, transportation and filling. If it is not compacted manually, the porosity is often large, and the compressibility is high and the shear strength is low, which is difficult to meet the needs of the project. In order to reduce the post-construction settlement of the fill and improve the strength, it must be compacted by rolling, tamping or vibration according to certain standards in the project.

[0004] Generally, the backfill behind the abutment of the bridge and the upper part of the culvert can be called the abutment backfill. The filler is generally gravel, ash soil or slag. In the backfill work, the filling requirements are relatively high.

[0005] The existing vehicle-mounted compaction machinery is large in size and complex in structure. The compaction operation is inconvenient and the compaction thickness cannot be adjusted, so it cannot meet the compaction thickness requirements of different roadbeds. Summary of the invention

[0006] The present invention provides a highway roadbed compacting device, which is used to solve the defects of the prior art, such as large size, complex structure, inconvenient compaction operation, non-adjustable compaction thickness, and inability to adapt to the compaction thickness requirements of different roadbeds. A cam mechanism is used to realize the repeated compaction process, and a thickness adjustment mechanism is used to realize the adjustability of the compaction thickness.

[0007] The present invention provides a highway roadbed compacting device, comprising: a movable frame, a thickness adjustment mechanism is installed above the frame, and a compacting mechanism is installed below the frame.

[0008] The compacting mechanism comprises a compacting plate, a first supporting plate and a cam mechanism, wherein the cam mechanism is installed below the first supporting plate, the compacting plate is placed below the cam mechanism, and the rotation of the cam mechanism drives the compacting plate to reciprocate.

[0009] The thickness adjustment mechanism is connected to the first support plate and adjusts the compaction thickness of the compaction plate.

[0010] According to the highway subgrade compacting device provided by the present invention, the cam mechanism comprises a cam, a motor, a first transmission mechanism and a second support plate, the motor drives the first transmission mechanism, and the first transmission mechanism drives the cam to rotate.

[0011] The motor is mounted on the second support plate, and the second support plate is mounted below the first support plate.

[0012] According to the highway roadbed compaction device provided by the present invention, the compaction mechanism further comprises a guide rod, a spring and a limit plate, one end of the guide rod is mounted on the compaction plate, and the other end of the guide rod passes through the first support plate.

[0013] The end portion of the other end of the guide rod is provided with the limiting piece, and the spring is sleeved on the guide rod and is placed between the first supporting plate and the limiting piece.

[0014] According to the highway roadbed compaction device provided by the present invention, the thickness adjustment mechanism comprises a moving plate, a screw group and a knob, the lower end of the screw group is rotatably connected to the moving plate, and the upper end of the screw group is connected to the knob.

[0015] The movable plate is connected to the first supporting plate, and the lead screw assembly is screwed into the frame.

[0016] According to the highway subgrade compacting device provided by the present invention, the screw assembly includes a first screw, a second screw and a second transmission mechanism.

[0017] The knob is connected to the upper end of the first lead screw, and the first lead screw transmits power to the second lead screw through the second transmission mechanism to rotate synchronously.

[0018] According to the highway subgrade compacting device provided by the present invention, the second transmission mechanism comprises a first transmission wheel, a second transmission wheel and a transmission belt.

[0019] The first transmission wheel is arranged above the first lead screw, the second transmission wheel is arranged above the second lead screw, and the first transmission wheel and the second transmission wheel are connected through the transmission belt.

[0020] According to the highway roadbed compacting device provided by the present invention, the compacting plate comprises a recessed area, and a rotatable roller is installed in the recessed area.

[0021] The roller is arranged below the cam mechanism.

[0022] According to the highway subgrade compacting device provided by the present invention, the first transmission mechanism includes a first gear and a second gear, the first gear is connected to the motor, the second gear is meshed with the first gear, and the second gear drives the cam through a rotating shaft.

[0023] One end of the rotating shaft is mounted on the second supporting plate.

[0024] According to the highway roadbed compacting device provided by the present invention, the frame body includes a top plate, and the lead screw group passes through the top plate and is threadedly matched with the top plate.

[0025] According to the highway roadbed compacting device provided by the present invention, the frame includes universal wheels at the bottom, a handle at the top, a bottom plate and a support rod.

[0026] The support rod connects the top plate, the bottom plate and the handle, the universal wheel is installed below the bottom plate, the bottom plate has a hollow, and the compacting mechanism passes through the hollow.

[0027] The highway roadbed compaction device provided by the present invention realizes a simple and efficient compaction process by driving the reciprocating motion of the compaction plate through the eccentric rotation of the cam mechanism, and realizes the compaction thickness adjustment of the compaction plate by connecting the thickness adjustment mechanism with the first support plate, thereby adapting to roadbeds with different thickness requirements and having stronger applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is one of the overall structural schematic diagrams of the highway roadbed compaction device provided by the present invention;

[0030] Figure 2 It is an enlarged view of the cam mechanism of the highway roadbed compacting device provided by the present invention;

[0031] Figure 3 This is the second schematic diagram of the overall structure of the highway roadbed compaction device provided by the present invention;

[0032] Figure 4 It is a schematic diagram of the compaction plate structure of the highway roadbed compaction device provided by the present invention;

[0033] Reference numerals:

[0034] 100: frame; 200: thickness adjustment mechanism; 300: compaction mechanism;

[0035] 101: top plate; 102: bottom plate; 103: handle;

[0036] 104: universal wheel; 105: hollow; 106: support rod;

[0037] 210: lead screw assembly; 220: second transmission mechanism; 211: first lead screw;

[0038] 212: second lead screw; 221: first transmission wheel; 222: second transmission wheel;

[0039] 223: driving belt; 201: moving plate; 202: knob;

[0040] 310: first support plate; 320: cam mechanism; 330: pressing plate;

[0041] 340: guide rod; 350: spring; 360: limit plate;

[0042] 321: cam; 322: motor; 323: first transmission mechanism;

[0043] 324: second support plate; 301: first gear; 302: second gear;

[0044] 303: rotating shaft; 331: recessed area; 332: roller. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0046] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0047] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Combine the following Figures 1 to 4 It should be understood that the following description is only an illustrative embodiment of the present invention and does not constitute a limitation on the present invention.

[0050] like Figure 1 The present invention provides a highway roadbed compacting device, comprising: a movable frame 100, a thickness adjustment mechanism 200 is installed above the frame 100, and a compacting mechanism 300 is installed below the frame 100.

[0051] The compacting mechanism 300 includes a compacting plate 330, a first support plate 310 and a cam mechanism 320. The cam mechanism 320 is installed below the first support plate 310. The compacting plate 330 is placed below the cam mechanism 320. The rotation of the cam mechanism 320 drives the compacting plate 330 to reciprocate.

[0052] It should be understood that the compaction plate 330 is used to compact the roadbed and is in direct contact with the sand and gravel of the roadbed. The reciprocating motion of the compaction plate 330 is a linear reciprocating motion, which can achieve the effect of hammering and pressing.

[0053] Therefore, the pressing plate 330 and the cam mechanism 320 realize reciprocating motion through the reset mechanism.

[0054] Furthermore, the thickness adjustment mechanism 200 is connected to the first support plate 310 to adjust the compaction thickness of the compaction plate 330 .

[0055] Specifically, for example, when the compaction thickness needs to be lowered, the thickness adjustment mechanism 200 is lowered, thereby reducing the distance between the compaction plate 330 and the roadbed, thereby adjusting the compaction thickness to a lower level.

[0056] like Figure 2 As shown, in one embodiment of the present invention, the cam mechanism 320 includes a cam 321, a motor 322, a first transmission mechanism 323 and a second support plate 324. The motor 322 drives the first transmission mechanism 323, and the first transmission mechanism 323 drives the cam 321 to rotate.

[0057] The motor 322 is mounted on the second support plate 324 , and the second support plate 324 is mounted below the first support plate 310 .

[0058] In other words, the cam 321 is an eccentric structure. When the motor 322 drives the first transmission mechanism 323, the cam 321 is driven to rotate eccentrically. The entire rotation process of the cam 321 has no contact with the first support plate 310. The cam 321 contacts the compacting plate 330 at the extreme position, driving the compacting plate 330 to move up and down.

[0059] Continue to refer Figure 1 In another embodiment of the present invention, the compaction mechanism 300 further includes a guide rod 340 , a spring 350 and a limit plate 360 ​​, one end of the guide rod 340 is mounted on the compaction plate 330 , and the other end of the guide rod 340 passes through the first support plate 310 .

[0060] Furthermore, a limiting plate 360 ​​is disposed at the other end of the guide rod 340 , and the spring 350 is sleeved on the guide rod 340 and disposed between the first support plate 310 and the limiting plate 360 ​​.

[0061] In other words, the guide rod 340 , the spring 350 and the limiting plate 360 ​​form a reset mechanism, and in a natural state, the spring 350 is compressed due to the gravity of the compacting plate 330 itself.

[0062] When the cam 321 moves to the limit position, the compacting plate 330 is pushed downward, the spring 350 is compressed again, and the compacting plate 330 compacts the roadbed.

[0063] When the cam 321 continues to move, the compacting plate 330 is reset under the action of the spring 350, and the compacting plate 330 leaves the roadbed. The cycle is repeated.

[0064] However, the diameter of the limiting piece 360 ​​is greater than the diameter of the guide rod 340 , so as to prevent the spring 350 from being separated from the guide rod 340 .

[0065] In one embodiment of the present invention, the cam 321 is elliptical in shape.

[0066] Of course, depending on the length of the spring 350 and other parameters, the cam 321 can maintain contact with the compacting plate 330 throughout the entire rotation process.

[0067] In another embodiment of the present invention, there are four guide rods 340, which are slidably connected to the four corners of the first support plate 310. The guide rods 340 slide inside the first support plate 310, so that the compaction plate 330 can only move up and down, thereby playing a guiding role.

[0068] Continue to refer Figure 1 In one embodiment of the present invention, the thickness adjustment mechanism 200 includes a movable plate 201, a screw group 210 and a knob 202, the lower end of the screw group 210 is rotatably connected to the movable plate 201, and the upper end of the screw group 210 is connected to the knob 202.

[0069] In addition, the moving plate 201 is connected to the first supporting plate 310 , and the lead screw assembly 210 is screwed into the frame body 100 .

[0070] In this embodiment, the lead screw assembly 210 may be connected to the movable plate 201 using a bearing structure.

[0071] Specifically, the screw group 210 may include one screw, two screws or multiple screws, and the knob 202 is used to realize the screw group 210 being screwed in and out relative to the frame 100. The screwing in of the screw group 210 drives the movable plate 201 to move downward, thereby reducing the compaction thickness of the compaction plate 330.

[0072] On the contrary, the screw assembly 210 is rotated out to drive the moving plate 201 to move upward, thereby increasing the compacting thickness of the compacting plate 330 .

[0073] Similarly, the knob 202 can be installed in only one lead screw of the lead screw assembly, or can be installed on multiple lead screws of the lead screw assembly to be used as a rotating handle.

[0074] In this embodiment, during use, the center line of the thickness adjustment mechanism 200 and the center line of the compaction mechanism 300 are in a straight line.

[0075] In an optional embodiment of the present invention, the screw assembly 210 includes a first screw 211 , a second screw 212 and a second transmission mechanism 220 .

[0076] The upper end of the first lead screw 211 is connected to a knob 202 , and the first lead screw 211 transmits power to the second lead screw 212 through the second transmission mechanism 220 , so as to rotate synchronously.

[0077] Furthermore, if Figure 3As shown, in other embodiments of the present invention, the second transmission mechanism 220 includes a first transmission wheel 221 , a second transmission wheel 222 and a transmission belt 223 .

[0078] The first transmission wheel 221 is arranged above the first lead screw 211 , the second transmission wheel 222 is arranged above the second lead screw 212 , and the first transmission wheel 221 and the second transmission wheel 222 are connected via a transmission belt 223 .

[0079] It should be understood that the first transmission wheel 221 is fixedly connected to the first screw 211. Similarly, the second transmission wheel 222 is fixedly connected to the second screw 212. By manually rotating the knob 202 on the first screw 211, the second screw 212 can be synchronously rotated through the transmission belt 223, thereby ensuring the horizontality of the compaction plate 330.

[0080] like Figure 4 As shown, in one embodiment of the present invention, the compacting plate 330 includes a recessed area 331 , in which a rotatable roller 332 is installed.

[0081] In addition, the roller 332 is disposed below the cam mechanism 320. The roller 332 is linearly arranged in the recessed area 331, and the sliding friction between the cam 321 and the pressing plate 330 is converted into rolling friction.

[0082] Continue to refer Figure 2 In a specific embodiment of the present invention, the first transmission mechanism 323 includes a first gear 301 and a second gear 302 , the first gear 301 is connected to the motor 322 , the second gear 302 is meshed with the first gear 301 , and the second gear 302 drives the cam 321 through the rotating shaft 303 .

[0083] In addition, one end of the rotating shaft 303 is mounted on the second supporting plate 324 .

[0084] It should be understood that the first gear 301 is meshedly connected with the second gear 302 , the tooth shape of the first gear 301 is matched with the tooth groove shape of the second gear 302 , and the tooth shape of the second gear 302 is matched with the tooth groove shape of the first gear 301 .

[0085] Continue to refer Figure 3 In an embodiment of the present invention, the frame 100 includes a top plate 101 , and the lead screw assembly 210 passes through the top plate 101 and is threadedly engaged with the top plate 101 .

[0086] Furthermore, in another embodiment of the present invention, the frame 100 includes universal wheels 104 at the bottom, a handle 103 at the top, a bottom plate 102 and a support rod 106 .

[0087] The support rod 106 connects the top plate 101 , the bottom plate 102 and the handle 103 , the universal wheel 104 is installed below the bottom plate 102 , the bottom plate 102 has a hollow 105 , and the compacting mechanism 300 passes through the hollow 105 .

[0088] During use, the operator pushes the handle 103 and walks on the roadbed that needs to be compacted to complete the compaction process.

[0089] To sum up: the highway roadbed compaction device of the embodiment of the present invention is connected with the first screw 211 and the second screw 212 through the internal thread of the top plate 101, and through the cooperation between the first transmission wheel 221, the second transmission wheel 222, the transmission belt 223, the knob 202 and the movable plate 201, the first transmission wheel 221 is driven to rotate by rotating the knob 202, the first transmission wheel 221 drives the transmission belt 222 to rotate, the transmission belt 223 drives the second transmission wheel 222 to rotate synchronously, the first transmission wheel 221 drives the first screw 211 to rotate, and the second transmission wheel 222 drives the second screw 212 to rotate.

[0090] Under the action of the thread, the first lead screw 211 and the second lead screw 212 drive the movable plate 201 to move, thereby changing the position of the compacting plate 330. The compacted thickness can be adjusted by adjusting the position of the compacting plate 330, thereby improving the compaction quality.

[0091] The first support plate 310 is connected to the movable plate 201, and the first support plate 310 is connected to the second support plate 324. Through the cooperation among the first gear 301, the rotating shaft 303, the cam 321, the second gear 302, the guide rod 340, the limit plate 360, the spring 350, the compacting plate 330 and the roller 332, after the motor 322 is started, it drives the first gear 301 to rotate, the first gear 301 meshes with the second gear 302, the second gear 302 drives the rotating shaft 303 to rotate, and the rotating shaft 303 drives the cam 321 to rotate.

[0092] When the cam 321 rotates between the first support plate 310 and the pressing plate 330 , the cam 321 and the roller 332 roll, and the guide rod 340 slides inside the first support plate 310 , so that the pressing plate 330 can only move up and down.

[0093] Under the action of the spring 350 , the spring 350 presses against the limiting piece 360 ​​, the guide rod 340 pulls the compacting plate 330 , the roller 332 can always be in contact with the outer surface of the cam 321 , and the compacting plate 330 continuously moves up and down.

[0094] The overall size of this embodiment is relatively small, and compaction can be performed by pushing the handle 103, which is easy to operate and improves the compaction effect.

[0095] The highway roadbed compaction device provided by the present invention realizes a simple and efficient compaction process by driving the reciprocating motion of the compaction plate through the eccentric rotation of the cam mechanism, and realizes the compaction thickness adjustment of the compaction plate by connecting the thickness adjustment mechanism with the first support plate, thereby adapting to roadbeds with different thickness requirements and having stronger applicability.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A highway subgrade compaction device, characterized in that: include: A movable frame, a thickness adjustment mechanism is installed above the frame, and a compaction mechanism is installed below the frame. The compacting mechanism comprises a compacting plate, a first support plate, a cam mechanism, a guide rod, a spring and a limit plate. The cam mechanism is installed below the first support plate, and the compacting plate is placed below the cam mechanism. The rotation of the cam mechanism drives the compacting plate to reciprocate. One end of the guide rod is installed on the compacting plate, and the other end of the guide rod passes through the first support plate. The end of the other end of the guide rod is provided with the limit plate. The spring is sleeved on the guide rod and is placed between the first support plate and the limit plate. The thickness adjustment mechanism is connected to the first support plate to adjust the compaction thickness of the compaction plate. The thickness adjustment mechanism includes a movable plate, a lead screw group and a knob. The lower end of the lead screw group is rotatably connected to the movable plate, the upper end of the lead screw group is connected to the knob, the movable plate is connected to the first support plate, and the lead screw group is screwed into the frame; The compacting plate comprises a recessed area, a rotatable roller is installed in the recessed area, and the roller is arranged below the cam mechanism; The frame body includes a top plate, and the lead screw assembly passes through the top plate and is threadedly matched with the top plate; The frame includes universal wheels at the bottom, a handle at the top, a bottom plate and a support rod. The support rod connects the top plate, the bottom plate and the handle, the universal wheel is installed below the bottom plate, the bottom plate has a hollow, and the compacting mechanism passes through the hollow.

2. The highway subgrade compacting device according to claim 1, characterized in that: The cam mechanism includes a cam, a motor, a first transmission mechanism and a second support plate. The motor drives the first transmission mechanism, and the first transmission mechanism drives the cam to rotate. The motor is mounted on the second support plate, and the second support plate is mounted below the first support plate.

3. The highway subgrade compacting device according to claim 1, characterized in that: The screw assembly includes a first screw, a second screw and a second transmission mechanism. The knob is connected to the upper end of the first lead screw, and the first lead screw transmits power to the second lead screw through the second transmission mechanism to rotate synchronously.

4. The highway subgrade compacting device according to claim 3, characterized in that: The second transmission mechanism includes a first transmission wheel, a second transmission wheel and a transmission belt. The first transmission wheel is arranged above the first lead screw, the second transmission wheel is arranged above the second lead screw, and the first transmission wheel and the second transmission wheel are connected through the transmission belt.

5. The highway subgrade compacting device according to claim 2, characterized in that: The first transmission mechanism includes a first gear and a second gear, the first gear is connected to the motor, the second gear is meshed with the first gear, and the second gear drives the cam through a rotating shaft. One end of the rotating shaft is mounted on the second supporting plate.

Images