Roadbed crushing device for road and bridge construction

Abstract

The invention discloses a road bridge construction roadbed crushing device which comprises a mounting frame, a portal frame and a driving frame are mounted at the tail end of the mounting frame, a plurality of first sliding rails are mounted on the portal frame, crushing hammers are slidably mounted in the first sliding rails, a plurality of second sliding rails are fixedly mounted on the driving frame, and driving teeth are slidably mounted on the second sliding rails. A plurality of fixed pulleys corresponding to the first sliding rails are fixedly installed at the upper end of the portal frame, a movable pulley is fixedly installed on the driving tooth, a traction rope is fixedly installed at the upper end of the breaking hammer, the traction rope bypasses the fixed pulleys and the movable pulley and then is fixedly connected to the upper end of the second sliding rail, and a driving spring is fixedly installed on the lower side of the upper end of the first sliding rail. A cam set is installed on the installation frame and connected with a driving piece. By arranging the movable pulley part, the stroke of the position of the breaking hammer is increased, the breaking hammer can have larger gravitational potential energy, and the breaking effect of the breaking hammer is improved through pushing of the driving spring.

Description

Technical Field

[0001] This invention belongs to the field of highway engineering equipment technology, and relates to a roadbed crushing device for road and bridge construction. Background Technology

[0002] During large-scale road and bridge renovations, the original road surface needs to be broken up and demolished. Current crushing devices primarily use heavy hammers for this purpose, including single-hammer and multi-hammer designs. Multi-hammer crushing devices are equipped with multiple small hammers. The crushing device and hydraulic power unit are mounted on a truck or specialized vehicle. The hydraulic power unit drives multiple hydraulic cylinders to lift the device, and then the hammers smash the surface with their weight to break the surface.

[0003] To reduce the difficulty of hydraulic system logic control, there are also crushing devices that drive multiple hammers through cams. However, cam-driven crushing devices have a short upward stroke and limited crushing force. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a roadbed breaking device for road and bridge construction, which effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A roadbed breaking device for road and bridge construction, comprising:

[0007] Mounting frame, which is mounted on the carrier;

[0008] A gantry frame, wherein the gantry frame is installed at the tail end of the mounting frame;

[0009] A drive frame, which is fixedly installed on the mounting frame at the front end of the gantry frame;

[0010] A first slide rail and a second slide rail, wherein multiple first slide rails are fixedly installed on the gantry frame and multiple second slide rails are fixedly installed on the drive frame;

[0011] The hydraulic breaker and the drive teeth are respectively slidably mounted on the first slide rail and the drive teeth are respectively slidably mounted on the second slide rail;

[0012] Fixed pulleys, a plurality of fixed pulleys are fixedly installed on the upper end of the gantry frame at positions corresponding to the first slide rail;

[0013] Movable pulleys, with multiple movable pulleys fixedly mounted on the drive gear;

[0014] The traction rope has a first end fixedly connected to the upper end of the breaker hammer, and a second end fixedly connected to the upper end of the second slide rail after passing over the fixed pulley and the movable pulley.

[0015] A drive spring, the upper end of which is fixedly installed on the lower side of the upper end of the first slide rail, and the traction rope passes through the drive spring;

[0016] A cam assembly, the cam assembly including a drive shaft, the drive shaft having multiple cam components fixedly mounted thereon, the cam components corresponding one-to-one with the drive teeth;

[0017] A driving component, the output end of which is connected to the driving shaft.

[0018] Optionally, the upper end of the first slide rail is rotatably mounted on the gantry frame, and a linear drive is hinged to the bottom of the mounting frame, with the output end of the linear drive hinged to the first slide rail.

[0019] Optionally, a preload spring is fixedly installed at the bottom of the drive frame, and the upper end of the preload spring is fixedly connected to the movable pulley.

[0020] Optionally, the cam component includes a wheel portion, the side of which is provided with a mounting groove, and a tooth portion is slidably mounted in the mounting groove, with a fixing member provided between the tooth portion and the wheel portion.

[0021] Optionally, the fixing member is a pin, and the wheel and the toothed part are provided with a plurality of corresponding pin holes.

[0022] Optionally, the fixed pulley includes a wheel frame, a wheel body is rotatably mounted on the wheel frame, a limit wheel is rotatably mounted on the wheel frame, the side of the limit wheel is in contact with the wheel body, the traction rope passes between the wheel body and the limit wheel, and the movable pulley has the same structure as the fixed pulley.

[0023] Optionally, a turnbuckle is fixedly connected to the second end of the traction rope, and the turnbuckle is fixedly connected to the drive frame.

[0024] Optionally, the first slide rail and the breaker hammer are provided with through holes, and a limit pin is inserted into the through holes.

[0025] Optionally, the bottom of the breaker is bolted with a replaceable head.

[0026] Optionally, the replaceable head is fitted onto the breaker hammer, and the replaceable head has a rectangular through hole on its side for bolt connection.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The cam component is driven to rotate by the drive component, which moves the corresponding drive teeth to make the movable pulley slide. The movable pulley drives the breaker to rise through the traction rope and compresses the drive spring. When the cam component rotates to the limit position and disengages from the drive teeth, the breaker falls under the action of gravity and the drive spring and impacts the ground. By setting the movable pulley part, the stroke of the breaker position is increased, so that the breaker can have greater gravitational potential energy and be pushed by the drive spring, thereby improving the breaker's crushing effect.

[0029] 2. The rotatable first slide rail driven by linear drive can rotate during use, so that the first slide rail has a certain angle, thereby causing the bottom of the breaker to impact the road surface at a certain angle. This causes the road surface to bear both downward impact force and part of backward impact force, increasing the tearing effect on the road surface and improving the crushing efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure from another perspective of an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the cam assembly according to an embodiment of the present invention.

[0033] Reference numerals: 1. Mounting bracket; 2. Gantry frame; 21. First slide rail; 22. Hydraulic breaker; 221. Limit pin; 222. Replaceable head; 23. Linear drive; 3. Drive frame; 31. Second slide rail; 32. Drive gear; 33. Preload spring; 41. Fixed pulley; 411. Wheel frame; 412. Wheel body; 413. Limit wheel; 42. Movable pulley; 43. Traction rope; 431. Turnbuckle; 44. Drive spring; 5. Cam assembly; 51. Drive shaft; 52. Cam component; 521. Wheel part; 522. Gear part; 6. Drive component. Detailed Implementation

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0035] Please see Figures 1 to 3This invention discloses a roadbed breaking device for bridge construction, comprising a mounting frame 1 mounted on a carrier, a gantry frame 2 mounted at the rear end of the mounting frame 1, a drive frame 3 fixedly mounted on the mounting frame 1 at the front end of the gantry frame 2, multiple first slide rails 21 mounted on the gantry frame 2, a slidably mounted breaker hammer 22 within each first slide rail 21, multiple second slide rails 31 fixedly mounted on the drive frame 3, drive teeth 32 slidably mounted on each second slide rail 31, and multiple corresponding first slide rails 21 fixedly mounted on the upper end of the gantry frame 2. A fixed pulley 41 and a movable pulley 42 are fixedly installed on the drive gear 32. A traction rope 43 is fixedly installed on the upper end of the breaker hammer 22. The traction rope 43 passes around the fixed pulley 41 and the movable pulley 42 and is fixedly connected to the upper end of the second slide rail 31. A drive spring 44 is fixedly installed on the lower side of the upper end of the first slide rail 21. The traction rope 43 passes through the drive spring 44. A cam group 5 is installed on the mounting bracket 1. The cam group 5 includes a drive shaft 51. Multiple cam elements 52 are fixedly installed on the drive shaft 51. The cam elements 52 correspond one-to-one with the drive gear 32. The drive shaft 51 is connected to a drive element 6.

[0036] Specifically, the cam 52 is driven to rotate by the drive 6, which moves the corresponding drive tooth 32 to slide the movable pulley 42. The movable pulley 42 drives the breaker 22 to rise through the traction rope 43 and compresses the drive spring 44. After the cam 52 rotates to its limit position and disengages from the drive tooth 32, the breaker 22 falls under the action of gravity and the drive spring 44 and impacts the ground.

[0037] In this way, by setting the movable pulley 42, the stroke of the breaker 22 is increased, so that the breaker 22 can have greater gravitational potential energy, and is pushed by the drive spring 44, thereby improving the breaking effect of the breaker 22.

[0038] In some feasible ways, the mounting frame 1 is set according to the actual situation of the carrier, such as steel frame, rectangular plate, etc. The gantry frame 2 and the drive frame 3 are both gantry frames. The first slide rail 21 and the second slide rail 31 can be set as rectangular rod, cylindrical rod, etc. In this embodiment, the first slide rail 21 is set as a rectangular tube, the second slide rail 31 is set as two opposing C-shaped rods, the breaker hammer 22 is a rectangular weight, and rectangular sliding blocks are set on both sides of the drive tooth 32. The sliding blocks are slidably installed on the C-shaped rods.

[0039] The fixed pulley 41 and the movable pulley 42 are ordinary pulleys. The traction rope 43 is selected from the appropriate steel wire rope or other materials according to the weight of the breaker 22. The drive spring 44 is installed on the lower side of the upper end of the first slide rail 21. In order to facilitate the adjustment of the impact force, the drive spring 44 can be disassembled and installed by bolts. In order to reduce the influence of the drive spring 44 on the fall of the breaker 22, the lower end of the drive spring 44 is not connected to the breaker 22.

[0040] The drive shaft 51 is mounted on the mounting bracket 1 via a bearing seat, and the cam 52 is fixed on the drive shaft 51. The drive component 6 can be selected according to the power system of the vehicle, such as a combination of a hydraulic station and a hydraulic motor, an electric motor and a battery diesel generator, etc.

[0041] As a specific embodiment of the roadbed breaking device for road and bridge construction provided in the application, the upper end of the first slide rail 21 is rotatably mounted on the gantry frame 2, and the bottom of the mounting frame 1 is hinged to a linear drive 23, the output end of the linear drive 23 being hinged to the first slide rail 21.

[0042] Overall, by setting a rotatable first slide rail 21 driven by linear drive 23, the first slide rail 21 can be rotated during use, so that part of the first slide rail 21 has a certain angle, thereby causing the bottom of the breaker 22 to impact the road surface at a certain angle. This allows the road surface to bear both downward impact force and some backward impact force, increasing the tearing effect on the road surface and improving the crushing efficiency.

[0043] Furthermore, the bottom of the breaker 22 is bolted with a replaceable head 222.

[0044] It should be understood that by setting up the replaceable head 222, different replaceable heads 222 can be used to meet different road conditions and usage requirements.

[0045] Furthermore, the replaceable head 222 is sleeved on the breaker 22, and the replaceable head 222 has a rectangular through hole on its side for bolt connection.

[0046] It should be understood that by setting the connecting hole to a rectangle and installing it on the side of the replaceable head 222, the connecting bolts are prevented from suffering a large impact when hitting the ground, which would affect disassembly and assembly.

[0047] In some feasible configurations, a cylindrical shaft is fixedly mounted on the upper end of the gantry frame 2, and a connector with a rotating hole is mounted on the upper end of the first slide rail 21. Multiple first slide rails 21 are fixedly connected to each other. The linear drive 23 can be a hydraulic cylinder or an electric actuator. The upper end of the replaceable head 222 is provided with a rectangular tube, and a through hole is provided on the side of the rectangular tube. The lower side of the breaker hammer 22 is provided with a threaded hole. The bottom of the replaceable head 222 can be configured as hemispherical, wedge-shaped, conical, etc., according to the configuration requirements.

[0048] As another specific embodiment of the roadbed breaking device for road and bridge construction provided in the application, please refer to Figure 2 and Figure 3 A preload spring 33 is fixedly installed at the bottom of the drive frame 3, and the upper end of the preload spring 33 is fixedly connected to the movable pulley 42.

[0049] In accordance with specific application scenarios, by setting a pre-tensioning spring 33, the pre-tensioning spring 33 forms a tension on the movable pulley 42 during the free fall of the breaker 22, reducing the possibility that the traction rope 43 may detach from the fixed pulley 41 or the movable pulley 42 due to the movement of the movable pulley 42 and the loss of tension of the traction rope 43.

[0050] As one specific embodiment of the roadbed breaking device for road and bridge construction provided in the application, please refer to Figure 3 The cam component 52 includes a wheel portion 521, a mounting groove is provided on the side of the wheel portion 521, a tooth portion 522 is slidably mounted in the mounting groove, and a fixing member is provided between the tooth portion 522 and the wheel portion 521.

[0051] It should be understood that by setting the wheel part 521 and the sliding tooth part 522, the distance of the tooth part 522 extending can be adjusted, thereby facilitating the adjustment of the position where the cam part 52 disengages from the drive tooth 32, and thus adjusting the stroke of the breaker hammer 22.

[0052] Further, please refer to Figure 1 The first slide rail 21 and the breaker hammer 22 have through holes, and a limit pin 221 is inserted and installed in the through holes.

[0053] It should be understood that by setting the limit pin 221, the position of the breaker 22 can be locked. On the one hand, this facilitates the vehicle's movement when it is not in operation. On the other hand, when the vehicle is in a narrow space or when it is necessary to avoid certain areas, the limit pin 221 restricts the breaker 22 from falling.

[0054] In some feasible embodiments, the wheel 521 is disc-shaped, with a rectangular mounting groove on its side. The tooth 522 comprises two parts: a rectangular block and a triangular shape. The rectangular block is installed in the rectangular mounting groove, and multiple insertion holes are provided on the rectangular block. A insertion hole with a pin is located at the mounting groove position, and the extension length of the tooth 522 is adjusted by adjusting the pin. To facilitate faster impact of the hydraulic breaker 22, multiple mounting grooves can be arranged in a circumferential array on the side of the wheel 521, thereby installing multiple teeth 522.

[0055] As a specific embodiment of a roadbed breaking device for road and bridge construction provided in the application, the second end of the traction rope 43 is fixedly connected to a turnbuckle 431, and the turnbuckle 431 is fixedly connected to the drive frame 3.

[0056] It should be understood that the tension of the traction rope 43 can be adjusted by providing a turnbuckle 431 that allows for adjustment of the traction rope 43.

[0057] As one specific embodiment of the roadbed breaking device for road and bridge construction provided in the application, please refer to Figure 3The fixed pulley 41 includes a wheel frame 411, a wheel body 412 is rotatably mounted on the wheel frame 411, and a limit wheel 413 is rotatably mounted on the wheel frame 411. The side of the limit wheel 413 is in contact with the wheel body 412. The traction rope 43 passes between the wheel body 412 and the limit wheel 413. The movable pulley 42 has the same structure as the fixed pulley 41.

[0058] It should be understood that by setting the limit wheel 413, the possibility of the traction rope 43 disengaging from the fixed pulley 41 during the relaxation process is reduced.

[0059] In some feasible embodiments, the wheel frame 411 is a U-shaped component, and the wheel body 412 and the limiting wheel 413 are rotatably mounted inside the wheel frame 411.

[0060] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roadbed breaking device for road and bridge construction, characterized in that, include: Mounting bracket (1), said mounting bracket (1) is mounted on the carrier; Gantry frame (2), the gantry frame (2) is installed at the tail end of the mounting frame (1); Drive frame (3), the drive frame (3) is fixedly installed on the mounting frame (1) at the front end of the gantry frame (2); The first slide rail (21) and the second slide rail (31) are fixedly installed on the gantry frame (2), and the second slide rail (31) is fixedly installed on the drive frame (3). The hydraulic breaker (22) and the drive teeth (32) are respectively slidably mounted on the first slide rail (21) and the drive teeth (32) are respectively slidably mounted on the second slide rail (31). Fixed pulleys (41), a plurality of fixed pulleys (41) are fixedly installed on the upper end of the gantry frame (2) corresponding to the positions of the first slide rail (21); Movable pulleys (42), a plurality of the movable pulleys (42) are fixedly installed on the drive teeth (32); The first end of the traction rope (43) is fixedly connected to the upper end of the breaker (22), and the second end passes over the fixed pulley (41) and the movable pulley (42) and is fixedly connected to the upper end of the second slide rail (31). Drive spring (44), the upper end of which is fixedly installed on the lower side of the upper end of the first slide rail (21), and the traction rope (43) passes through the drive spring (44). The cam assembly (5) includes a drive shaft (51) on which a plurality of cam elements (52) are fixedly mounted, and the cam elements (52) correspond one-to-one with the drive teeth (32). A drive unit (6) is provided, the output end of which is connected to the drive shaft (51).

2. The roadbed breaking device for road and bridge construction according to claim 1, characterized in that: The upper end of the first slide rail (21) is rotatably mounted on the gantry frame (2), and the bottom of the mounting bracket (1) is hinged to a linear drive (23), the output end of the linear drive (23) being hinged to the first slide rail (21).

3. The roadbed breaking device for road and bridge construction according to claim 1, characterized in that: A preload spring (33) is fixedly installed at the bottom of the drive frame (3), and the upper end of the preload spring (33) is fixedly connected to the movable pulley (42).

4. The roadbed breaking device for road and bridge construction according to claim 1, characterized in that: The cam component (52) includes a wheel portion (521), and a mounting groove is provided on the side of the wheel portion (521). A tooth portion (522) is slidably mounted in the mounting groove, and a fixing member is provided between the tooth portion (522) and the wheel portion (521).

5. A roadbed breaking device for road and bridge construction according to claim 4, characterized in that: The fixing member is a pin, and the wheel part (521) and the tooth part (522) are provided with a plurality of corresponding pin holes.

6. A roadbed breaking device for road and bridge construction according to claim 1, characterized in that: The fixed pulley (41) includes a wheel frame (411), on which a wheel body (412) is rotatably mounted. A limit wheel (413) is rotatably mounted on the wheel frame (411). The side of the limit wheel (413) is in contact with the wheel body (412). The traction rope (43) passes between the wheel body (412) and the limit wheel (413). The movable pulley (42) has the same structure as the fixed pulley (41).

7. A roadbed breaking device for road and bridge construction according to claim 1, characterized in that: The second end of the traction rope (43) is fixedly connected to a turnbuckle (431), and the turnbuckle (431) is fixedly connected to the drive frame (3).

8. A roadbed breaking device for road and bridge construction according to claim 5, characterized in that: The first slide rail (21) and the breaker hammer (22) have through holes, and a limit pin (221) is inserted into the through hole.

9. A roadbed breaking device for road and bridge construction according to claim 2, characterized in that: The bottom of the breaker (22) is bolted with a replaceable head (222).

10. A roadbed breaking device for road and bridge construction according to claim 9, characterized in that: The replaceable head (222) is sleeved on the breaker hammer (22), and the replaceable head (222) has a rectangular through hole on its side for bolt connection.

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