Uniform laying device for subbase layer of expressway

Abstract

The utility model discloses an expressway subbase layer uniform paving device which comprises two paving frames, a support is arranged at the top of each paving frame, the two paving frames are connected through a cross beam at the top of the support, connecting frames are arranged at the two opposite ends of each cross beam through height adjusting mechanisms, and paving rollers are arranged at the bottoms of the connecting frames through mounting frames. Walking wheels are arranged at the two opposite ends of the bottoms of the two paving frames, the paving frames are arranged at the tops of the rails through the walking wheels, the two parallel rails correspond to the two paving frames in a one-to-one mode, assembling mechanisms are arranged at the two opposite ends of the rails, and cleaning mechanisms are arranged at one ends of the paving frames. A series of structures are arranged, the track is formed by combining and splicing multiple sections, the paving equipment is simple in overall structure and low in equipment cost, the paving height can be adjusted, the requirements for precise paving at different heights, sweeping of a walking face and synchronous sweeping along with paving movement of the equipment are met, and running of the equipment on the ground is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of highway paving, in particular to a device for evenly paving the subbase of an expressway. Background Technique

[0002] The conventional subbase of an expressway is paved in the form of a combination of cement and gravel. Before the rolling operation of the mixture such as gravel and cement, it is necessary to ensure the leveling effect of the mixture and operate with the help of a paver.

[0003] At present, the cost of large paver equipment is relatively high, the height adjustment of the paving rollers on the equipment is inconvenient, and during the paving process of the expressway subbase, the materials for paving the expressway subbase will spread and contact the running tracks of the paver, causing obstacles to the running and movement of the equipment, and affecting the stability of the equipment operation and paving uniformity. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for evenly paving the subbase of an expressway to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A device for evenly paving the subbase of an expressway, including a paving frame, a support is arranged on the top of the paving frame, there are two paving frames, and the two paving frames are connected by a cross beam on the top of the support. Both opposite ends of the cross beam are provided with connecting frames through height adjustment mechanisms. The bottom of the connecting frame is provided with paving rollers through mounting frames. Both opposite ends of the bottom of the two paving frames are provided with traveling wheels. The paving frame is arranged on the top of the track through the traveling wheels. There are two groups of tracks, and the two groups of tracks are arranged in one-to-one correspondence with the two paving frames. Assembly mechanisms are arranged at both opposite ends of the track. The two groups of tracks are composed of several sections through the assembly mechanisms. A cleaning mechanism is arranged at one end of the paving frame.

[0006] Preferably, the height adjustment mechanism includes a first worm gear, a first worm, a lead screw and a first motor. The top of both opposite ends of the cross beam is provided with a first worm gear through a mounting box. A first worm is arranged in the mounting box on one side of the first worm gear. The first worm is meshed with the first worm gear. An internal thread sleeve is arranged in the middle of the first worm gear. A lead screw is arranged on the top of the connecting frame. The first worm gear is in threaded connection with the lead screw through the internal thread sleeve. One end of the first worm is connected to the output end of a first motor on one side of the mounting box through a coupling.

[0007] Preferably, the assembly mechanism includes an assembly groove and an assembly block. An assembly groove is arranged at one end of the track, and an assembly block is arranged at the other end of the track. Positioning holes are arranged on the track on both opposite sides of the assembly groove and on the assembly block. Adjacent sections of the track are fixedly assembled by arranging the assembly block in the assembly groove and installing positioning bolts in the positioning holes.

[0008] Preferably, the track is arranged in an I-shaped structure, and a limiting seat is integrally provided at the top of the track, and the traveling wheels are clamped on the limiting seat.

[0009] Preferably, an isosceles trapezoid structure is formed among the paving frame, the support and the cross beam.

[0010] Preferably, the cleaning mechanism includes a cleaning plate, cleaning brushes and connecting plates. Cleaning plates are provided below one ends of the two paving frames. Cleaning brushes are provided at the bottom of the cleaning plates. The cleaning brushes are arranged corresponding to the tracks. Connecting plates are provided on opposite sides at the top of the cleaning plates. There are two connecting plates. The two connecting plates are arranged on opposite sides of the paving frame through a connecting mechanism.

[0011] Preferably, the connecting mechanism includes a connecting shaft, a second worm gear, a second worm and a second motor. A connecting shaft is arranged between the two connecting plates. The connecting shaft passes through the paving frame through a shaft hole. A second worm gear is arranged in the middle of the connecting shaft. A second worm is meshed on one side of the second worm gear. The second worm gear and the second worm are both arranged in the paving frame. The top of the second worm is connected to the output end of the second motor on the paving frame through a coupling.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this uniform paving device for the subbase of expressways, through the paving rollers arranged on the connecting frame and the cooperation of the traveling wheels at the bottom of the paving frame with the tracks, the uniform paving of the subbase of expressways is realized. The tracks are used in a multi-section combined splicing manner. The overall structure of the paving equipment is simple and the equipment cost is relatively low. The setting of the height adjustment mechanism on the cross beam and the cooperation of the lead screw on the connecting frame with the first worm gear and the first worm realize the adjustment of the paving height and meet the accurate paving at different heights.

[0014] 2. For this uniform paving device for the subbase of expressways, through the cleaning mechanism arranged on the paving frame, the cleaning brushes on the cleaning plates clean the traveling surfaces of the traveling wheels on the tracks, avoiding the paving materials of the subbase of expressways from hindering the smooth operation of the track-type paving equipment on the tracks. The cleaning is synchronized with the movement of the equipment during paving, which is convenient. Moreover, the connecting shaft arranged on the connecting plate cooperates with the second worm gear and the second worm to realize the rotation and switching of the cleaning plate on the paving frame, so that the cleaning mechanism does not affect the operation of the equipment on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the structural schematic diagram of the support in the present utility model;

[0017] Figure 3 For the present utility model Figure 2 the enlarged structural schematic diagram at A;

[0018] Figure 4 This is a schematic structural view of the cleaning plate in the present utility model;

[0019] Figure 5 This is a schematic structural view of the track in the present utility model.

[0020] In the figure: 1, paving frame; 2, bracket; 3, cross beam; 4, height adjustment mechanism; 41, first worm gear; 42, first worm; 43, lead screw; 44, first motor; 5, traveling wheel; 6, track; 61, limit seat; 62, assembly groove; 7, cleaning mechanism; 71, cleaning plate; 72, cleaning brush; 73, connecting plate; 74, connecting shaft; 75, second worm gear; 76, second worm; 77, second motor; 8, connecting frame; 9, paving roller. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] Such as Figures 1 to 5As shown in the figure, the uniform paving device for the subbase of the expressway in this embodiment includes a paving frame 1. A support 2 is provided at the top of the paving frame 1. There are two paving frames 1, and the two paving frames 1 are connected by a cross beam 3 at the top of the support 2. Connecting frames 8 are provided at both opposite ends of the cross beam 3 through height adjustment mechanisms 4. A paving roller 9 is provided at the bottom of the connecting frame 8 through a mounting frame. Walking wheels 5 are provided at both opposite ends of the bottoms of the two paving frames 1. The paving frame 1 is arranged on the top of the track 6 through the walking wheels 5. There are two groups of tracks 6, and the two groups of tracks 6 are arranged in one-to-one correspondence with the two paving frames 1. Assembly mechanisms are provided at both opposite ends of the track 6. The two groups of tracks 6 are composed of several sections through the assembly mechanisms. A cleaning mechanism 7 is provided at one end of the paving frame 1. The track 6 is used in a multi-section combined splicing manner. The overall structure of the paving equipment is simple, the equipment cost is relatively low, the adjustment of the paving height can be realized, accurate paving at different heights can be satisfied, the walking surface can be cleaned, and the cleaning moves synchronously with the laying of the equipment without affecting the operation of the equipment on the ground.

[0024] Specifically, the height adjustment mechanism 4 includes a first worm gear 41, a first worm 42, a lead screw 43 and a first motor 44. The first worm gears 41 are provided at the tops of both opposite ends of the cross beam 3 through mounting boxes. A first worm 42 is provided in the mounting box on one side of the first worm gear 41. The first worm 42 is meshed with the first worm gear 41. An internal screw sleeve is provided in the middle of the first worm gear 41. A lead screw 43 is provided at the top of the connecting frame 8. The first worm gear 41 is threadedly connected to the lead screw 43 through the internal screw sleeve. One end of the first worm 42 is connected to the output end of the first motor 44 on one side of the mounting box through a coupling. The first motor 44 drives the first worm 42 and the first worm gear 41 to rotate. The rotation of the first worm gear 41 drives the lead screw 43 to lift through the internal thread, driving the height adjustment of the connecting frame 8 and the paving roller 9, and the worm and worm gear are meshed and self-locked, making the height adjustment self-locking stable.

[0025] Furthermore, the assembly mechanism includes an assembly groove 62 and an assembly block. An assembly groove 62 is provided at one end of the track 6, and an assembly block is provided at the other end of the track 6. Positioning holes are provided on the track 6 on both opposite sides of the assembly groove 62 and on the assembly block. Adjacent two sections of the track 6 are fixedly assembled through the assembly block arranged in the assembly groove 62 and the positioning bolts installed in the positioning holes. After the paving frame 1 walks on the track 6, the previous section of the track 6 is moved to the paving forward direction, and the two sections of the track 6 are spliced and assembled. The disassembly and assembly are convenient, and the assembly is firm.

[0026] Furthermore, the track 6 is arranged in an I-shaped structure. A limit seat 61 is integrally provided at the top of the track 6. The walking wheel 5 is clamped on the limit seat 61, and the walking wheel 5 moves in a limited way on the track 6, and the operation is stable.

[0027] Furthermore, an isosceles trapezoid structure is formed among the paving frame 1, the support 2 and the cross beam 3. The paving frame 1, the support 2 and the cross beam 3 are all made of high-strength stainless steel materials, and the structural strength is high.

[0028] Further, the cleaning mechanism 7 includes a cleaning plate 71, a cleaning brush 72 and a connecting plate 73. Cleaning plates 71 are provided below one ends of the two paving frames 1. A cleaning brush 72 is provided at the bottom of the cleaning plate 71. The cleaning brush 72 is arranged corresponding to the track 6. Connecting plates 73 are provided on opposite sides of the top of the cleaning plate 71. There are two connecting plates 73. The two connecting plates 73 are arranged on opposite sides of the paving frame 1 through a connecting mechanism, turning the cleaning plate 71 into a state where it is vertically downward. The cleaning brush 72 at the bottom of the cleaning plate 71 is stuck on the top of the limit seat 61 and the track 6. During the movement of the paving frame 1 on the track 6, the cleaning brush 72 on the cleaning mechanism 7 cleans the walking surface of the walking wheel 5 on the track 6.

[0029] Furthermore, the connecting mechanism includes a connecting shaft 74, a second worm gear 75, a second worm 76 and a second motor 77. A connecting shaft 74 is provided between the two connecting plates 73. The connecting shaft 74 passes through the paving frame 1 through a shaft hole. A second worm gear 75 is provided in the middle of the connecting shaft 74. A second worm 76 is meshed on one side of the second worm gear 75. The second worm gear 75 and the second worm 76 are both arranged inside the paving frame 1. The top of the second worm 76 is connected to the output end of the second motor 77 on the paving frame 1 through a coupling. The second motor 77 drives the second worm 76 and the second worm gear 75 to rotate. The second worm gear 75 drives the connecting plate 73 and the cleaning plate 71 to rotate on the paving frame 1 through the connecting shaft 74.

[0030] The usage method of this embodiment is as follows: The traveling wheels 5 are limited to move on the top of the track 6 through the limit seats 61, so that the paving frame 1, the support 2, the cross beam 3, the connecting frame 8, and the paving roller 9 move in the operation area of the highway subbase paving. According to the height of the highway subbase paving, the first motor 44 drives the first worm 42 and the first worm gear 41 to rotate. The rotation of the first worm gear 41 drives the screw rod 43 to lift through the internal thread, so as to adjust the height of the paving roller 9 to the height of the highway subbase paving through the height adjustment mechanism 4. The second motor 77 drives the second worm 76 and the second worm gear 75 to rotate. The second worm gear 75 drives the connecting plate 73 to rotate on the paving frame 1 through the connecting shaft 74, and rotates the cleaning plate 71 into a state of being vertically downward. The cleaning brush 72 at the bottom of the cleaning plate 71 is stuck on the top of the limit seat 61 and the track 6. During the movement of the paving frame 1 on the track 6, the cleaning brush 72 on the cleaning mechanism 7 cleans the walking surface of the traveling wheels 5 on the track 6, avoiding the paving materials of the highway subbase from hindering the smooth operation of the track-type paving equipment on the track 6. The paving roller 9 evenly paves the highway subbase. After the paving frame 1 walks on the track 6, the previous section of the track 6 is moved to the paving forward direction, and the two sections of the track 6 are spliced and assembled. That is, between two adjacent sections of the track 6, the assembly block is inserted into the assembly groove 62, and the positioning bolt is installed in the positioning hole for fixed assembly. The track 6 can be disassembled and used repeatedly in multiple sections. The overall structure of the paving equipment is simple, and the equipment cost is relatively low. The cleaning is synchronized with the movement of the equipment during paving, which is convenient. When the equipment moves on the ground, the paving roller 9 is lifted away from the ground through the height adjustment mechanism 4, and the cleaning plate 71 is rotated on the paving frame 1 to be switched to a horizontal or upward state, so that the cleaning mechanism 7 and the paving roller 9 do not affect the operation of the equipment on the ground.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for uniformly paving a highway subbase, comprising a paving frame (1), characterized in that: A bracket (2) is provided on the top of the paving frame (1), and two paving frames (1) are provided. The two paving frames (1) are connected via a crossbeam (3) on the top of the bracket (2). The opposite ends of the crossbeam (3) are provided with a connecting frame (8) via a height adjustment mechanism (4). The bottom of the connecting frame (8) is provided with a paving roller (9) via a mounting frame. The opposite ends of the bottom of the two paving frames (1) are provided with walking wheels (5). The paving frames (1) are arranged on the top of a track (6) via the walking wheels (5). The track (6) is provided with two groups. The two groups of the tracks (6) are arranged in a one-to-one correspondence with the two paving frames (1). The opposite ends of the track (6) are provided with an assembly mechanism. The two groups of the tracks (6) are composed of a plurality of sections via the assembly mechanism. One end of the paving frame (1) is provided with a cleaning mechanism (7).

2. The highway subbase uniform paving device according to claim 1 is characterized in that: The height adjustment mechanism (4) comprises a No. 1 worm wheel (41), a No. 1 worm screw (42), a lead screw (43) and a No. 1 motor (44). The tops of the two opposite ends of the crossbeam (3) are provided with No. 1 worm wheels (41) through mounting boxes. The No. 1 worm screw (42) is arranged in the mounting box on one side of the No. 1 worm wheel (41). The No. 1 worm screw (42) is meshed with the No. 1 worm wheel (41). An inner thread sleeve is arranged in the middle of the No. 1 worm wheel (41). The top of the connecting frame (8) is provided with a lead screw (43). The No. 1 worm wheel (41) is threadedly connected to the lead screw (43) through the inner thread sleeve. One end of the No. 1 worm screw (42) is connected to the output end of the No. 1 motor (44) on one side of the mounting box through a coupling.

3. The highway subbase uniform paving device according to claim 1 is characterized in that: The assembly mechanism comprises an assembly groove (62) and an assembly block, wherein one end of the track (6) is provided with the assembly groove (62), and the other end of the track (6) is provided with the assembly block, positioning holes are provided on the tracks (6) and the assembly block on opposite sides of the assembly groove (62), and two adjacent sections of the track (6) are fixedly assembled by means of positioning bolts arranged in the assembly groove (62) and installed in the positioning holes.

4. The highway subbase uniform paving device according to claim 1 is characterized in that: The track (6) is arranged in an I-shaped structure, a limiting seat (61) is integrally provided on the top of the track (6), and the running wheel (5) is clamped on the limiting seat (61).

5. The highway subbase uniform paving device according to claim 1 is characterized in that: The paving frame (1), the support (2) and the crossbeam (3) are arranged in an isosceles trapezoidal structure.

6. The highway subbase uniform paving device according to claim 1, characterized in that: The cleaning mechanism (7) comprises a cleaning plate (71), a cleaning brush (72) and a connecting plate (73). A cleaning plate (71) is provided below one end of each of the two paving frames (1). A cleaning brush (72) is provided at the bottom of the cleaning plate (71). The cleaning brush (72) is arranged corresponding to the track (6). Connecting plates (73) are provided on opposite sides of the top of the cleaning plate (71). Two connecting plates (73) are provided. The two connecting plates (73) are arranged on opposite sides of the paving frame (1) through a connecting mechanism.

7. The highway subbase uniform paving device according to claim 6, characterized in that: The connecting mechanism comprises a connecting shaft (74), a second worm wheel (75), a second worm gear (76) and a second motor (77); a connecting shaft (74) is provided between the two connecting plates (73); the connecting shaft (74) passes through the paving frame (1) through an axial hole; a second worm wheel (75) is provided in the middle of the connecting shaft (74); a second worm gear (76) is meshed with one side of the second worm wheel (75); the second worm wheel (75) and the second worm gear (76) are both provided in the paving frame (1); and the top of the second worm gear (76) is connected to the output end of the second motor (77) on the paving frame (1) through a coupling.

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