A stone breaking device for bridge and tunnel construction
By introducing a material clearing and stone-clamping unit into the stone crushing device used in bridge and tunnel construction, the problems of wet stone blockage and slippage were solved, achieving efficient automatic cleaning and safe crushing, and reducing energy consumption and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WEINAN HIGHWAY BUREAU
- Filing Date
- 2025-02-21
- Publication Date
- 2026-07-14
AI Technical Summary
In bridge and tunnel construction, wet stones can easily stick to the inner wall of the crushing chamber, causing blockages, increasing energy consumption and maintenance costs. At the same time, larger stones can easily slip, making operation cumbersome and unsafe.
A stone crushing device for bridge and tunnel construction was designed, equipped with a unit for clearing adhesive materials and a unit for trapping loose stones. The cleaning mechanism includes a scraper and anti-slip teeth. It automatically cleans adhesive materials and prevents stones from slipping through hydraulic drive and sensor control. It is combined with a hammering mechanism to handle large stones.
It achieves efficient and automatic cleaning of adhering materials, improves crushing efficiency and safety, and reduces energy consumption and maintenance costs.
Smart Images
Figure CN119746986B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of crushing technology, and in particular to a rock crushing device for bridge and tunnel construction. Background Technology
[0002] During the construction of bridges and tunnels, a large number of stones are generated. Since the stones vary in size and some are quite large, they are inconvenient to transport and need to be crushed.
[0003] Choosing the right crushing equipment is crucial for improving construction efficiency and reducing costs. Jaw crushers are generally used for the initial crushing of stones, as they can handle large stones with high hardness. However, the following problems still exist in actual engineering projects:
[0004] (1) Water is sprayed during the cutting or dust removal operations, making the stones to be crushed quite wet, forming wet material. This wet material easily adheres to the inner wall of the crushing chamber, reducing the crushing space and affecting the flowability of the material, causing blockages. At the same time, due to the adhesion of the material, the friction between the moving jaw and the fixed jaw increases, requiring the motor to have more power to drive the equipment, thus increasing energy consumption. If there is a large amount of wet material adhering to the crushing chamber during startup, the starting current will also increase accordingly. The adhering material may contain hard particles, causing additional wear on the jaw plates and other critical components. Therefore, regular manual cleaning is required, increasing maintenance and operating costs.
[0005] (2) For larger stones, it is easy for the stone to slip on the jaw plate, requiring manual handling or the addition of hammering equipment. Manual handling is unsafe, and adding hammering equipment is cumbersome and costly because the hammering equipment is large and requires manual adjustment of the hammering position. Summary of the Invention
[0006] The purpose of this invention is to provide a rock crushing device for bridge and tunnel construction, thereby solving the above-mentioned technical problems.
[0007] To achieve the above objectives, the present invention provides a rock crushing device for bridge and tunnel construction, comprising a frame and a control terminal. The frame is equipped with a jaw crushing mechanism and a crushing drive mechanism, which are connected to the jaw crushing mechanism. The jaw crushing mechanism has a cleaning mechanism on the inner side of its jaw plate. The cleaning mechanism includes a unit for removing adhering materials and a unit for trapping loose stones. The unit for removing adhering materials includes a scraper plate connected to an extension drive hydraulic cylinder, and a material removal mechanism is provided on the scraper plate. The unit for trapping loose stones includes several feeding components mounted on the scraper plate, each feeding component connected to anti-slip teeth to increase the friction between the stones and the jaw plate.
[0008] The crushing drive mechanism, the clearing unit for adhering materials, and the rock-clamping unit are all electrically connected to the control terminal.
[0009] Preferably, the bottom of the scraper is provided with a telescopic adapter bottom, which includes a telescopic plate and a flexible scraper strip disposed on the bottom side of the telescopic plate. The flexible scraper strip is adapted to the jaw plate. A telescopic drive telescopic rod is connected to the top side of the telescopic plate and is disposed on the scraper.
[0010] The telescopic drive telescopic pole is electrically connected to the control terminal.
[0011] Preferably, the telescopic part of the telescopic drive telescopic rod is provided with a meshing groove, which meshes with the transmission gear in the scraper plate. The transmission gear meshes with the lifting rack that is slidably arranged inside the scraper plate, and the top of the lifting rack is connected to a baffle plate.
[0012] Preferably, the material removal mechanism includes L-shaped connecting plates installed on both sides of the baffle plate, and a material removal plate is connected between the two L-shaped connecting plates. The material removal plate and the scraper plate are arranged opposite to each other.
[0013] Preferably, the delivery component includes a winch installed inside the protective cover on the back of the scraper. The wire rope of the winch passes through the protective cover and the guide ring in sequence and is connected to the anti-slip teeth. A guide ring is installed on the protective cover and a first distance sensor is installed on the guide ring. The anti-slip teeth are located on one side of the baffle plate. The front end of the anti-slip teeth is triangular and the rear end of the anti-slip teeth is cylindrical and fixedly connected to the wire rope.
[0014] Both the winch and the first distance sensor are electrically connected to the control terminal, and the corresponding winch deployment amount is calculated based on the distance data from the first distance sensor.
[0015] Preferably, an independent hammering mechanism is provided on the top of the jaw crusher. The independent hammering mechanism includes a gantry frame, which is set on the top of the jaw crusher via a first transverse moving module. A first longitudinal moving module and a scanning component are provided on the gantry frame, and a hammering component is provided on the first longitudinal moving module via a first height adjustment module.
[0016] The first lateral movement module, the first longitudinal movement module, the first height adjustment module, the hammering component, and the scanning component are all electrically connected to the control terminal.
[0017] Preferably, the scanning component includes several linearly distributed second distance sensors and image acquisition devices. Both the second distance sensors and image acquisition devices are electrically connected to the control terminal. The image acquisition device is used to acquire images of the stone to determine the shape of the stone. The second distance sensors are used to acquire the height of the stone relative to the second distance sensor. The scanning component acquires the stone stuck in the jaw crusher to obtain the specific shape and height of the stone. The hammering position is determined based on the specific shape and height of the stone.
[0018] The position of the hammering component is adjusted by the first lateral movement module, the first longitudinal movement module, and the first height adjustment module.
[0019] Preferably, the jaw crusher is equipped with a linkage hammer mechanism at the top. The linkage hammer mechanism includes a guide frame with several guide holes. Hammer rods are slidably arranged in the guide holes. One end of each hammer rod is rotatably connected to a crankshaft, which is rotatably mounted on the guide frame. A camera is connected to the guide frame via an extension rod. The camera is positioned opposite to the feeding conveyor for collecting images of the stones. The camera is electrically connected to a control terminal.
[0020] Preferably, the crankshaft is connected to the crushing drive mechanism via a belt, and a tensioning mechanism is provided on one side of the guide frame. The tensioning mechanism includes a tensioning wheel, which is installed on one side of the guide frame via a tensioning adjustment telescopic rod.
[0021] A second height adjustment module is connected to the bottom of the guide frame, and a second lateral adjustment module is connected to the second height adjustment module. The second lateral adjustment module is installed on the frame.
[0022] The tension adjustment telescopic rod, the second height adjustment module, and the second lateral adjustment module are all electrically connected to the control terminal.
[0023] Preferably, the crushing drive mechanism includes a crushing drive motor mounted on the frame, the crushing drive motor being connected to a pulley via a belt, the pulley being connected to an eccentric shaft on the frame, and the jaw crushing mechanism including a jaw plate, the jaw plate including a fixed jaw plate and a movable jaw plate, the fixed jaw plate being mounted on the frame, the movable jaw plate being disposed opposite to the fixed jaw plate and connected to the eccentric shaft.
[0024] The crushing drive motor is electrically connected to the control terminal.
[0025] Therefore, the present invention employs the above-mentioned rock crushing device for bridge and tunnel construction, which has the following beneficial effects:
[0026] (1) A cleaning unit for adhesive materials is provided. When no more material is being fed, the adhesive on the jaw plate can be cleaned without stopping the machine, avoiding the need to stop the machine for cleaning. Compared with manual cleaning, the cleaning unit for adhesive materials is more efficient.
[0027] (2) It is equipped with a stone-locking unit with multiple anti-slip teeth that can be put in at the same time. It is easy to operate and improves the stone-locking efficiency. The fully automatic anti-slip teeth are used, which has a high safety factor and improves the crushing efficiency.
[0028] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of an embodiment 1 of the rock crushing device for bridge and tunnel construction according to the present invention;
[0030] Figure 2This is a schematic diagram of the cleaning mechanism structure of the present invention;
[0031] Figure 3 This is a cross-sectional view of the cleaning mechanism of the present invention;
[0032] Figure 4 This is a schematic diagram of an embodiment 2 of the rock crushing device for bridge and tunnel construction according to the present invention;
[0033] Figure 5 This is a schematic diagram of embodiment 3 of the rock crushing device for bridge and tunnel construction of the present invention;
[0034] Figure 6 This is a schematic diagram of the guide frame and crankshaft structure of the present invention.
[0035] Figure Labels
[0036] 1. Frame; 2. Jaw crusher mechanism; 21. Fixed jaw plate; 22. Moving jaw plate; 3. Crushing drive mechanism; 31. Crushing drive motor; 32. Pulley; 33. Eccentric shaft; 4. Cleaning mechanism; 41. Cleaning unit for adhering materials; 411. Scraper; 412. Extension drive hydraulic cylinder; 413. Telescopic plate; 414. Flexible scraper; 415. Telescopic drive telescopic rod; 416. Transmission gear; 417. Lifting rack; 418. Baffle plate; 42. Stone-catching unit; 421. Winch; 422. Anti-slip teeth; 423. Protective cover; 424. Wire ring; 425. 5. Distance sensor; 6. Material removal mechanism; 7. L-shaped connecting plate; 8. Material removal plate; 9. Independent hammering mechanism; 10. Gantry frame; 11. First lateral movement module; 12. First longitudinal movement module; 13. Scanning component; 14. First height adjustment module; 15. Hammering component; 16. Linked hammering mechanism; 17. Guide frame; 18. Guide through hole; 19. Hammering rod; 20. Crankshaft; 21. Extension rod; 22. Camera; 33. Second height adjustment module; 44. Second lateral adjustment module; 55. Tensioning mechanism; 66. Tensioning wheel; 77. Tensioning adjustment telescopic rod. Detailed Implementation
[0037] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0038] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0039] Example 1
[0040] like Figure 1 As shown, a rock crushing device for bridge and tunnel construction includes a frame 1 and a control terminal. The frame 1 is equipped with a jaw crusher 2 and a crushing drive mechanism 3. The crushing drive mechanism 3 is connected to the jaw crusher 2. The crushing drive mechanism 3 includes a crushing drive motor 31 mounted on the frame 1. The crushing drive motor 31 is connected to a pulley 32 via a belt. The pulley 32 is connected to an eccentric shaft 33 on the frame 1. The jaw crusher 2 includes jaw plates, including a fixed jaw plate 21 and a movable jaw plate 22. The fixed jaw plate 21 is mounted on the frame 1 via an adjustment assembly. The adjustment assembly adopts an existing structure without modification, and the specific structure is not limited here. The movable jaw plate 22 is arranged opposite to the fixed jaw plate 21 and is connected to the eccentric shaft 33. The crushing drive motor 31 is electrically connected to the control terminal for regulating the operation of the crushing drive motor 31.
[0041] A cleaning mechanism 4 is provided on the inner side of the jaw plate, such as... Figure 2 - Figure 3As shown, the cleaning mechanism 4 includes a material removal unit 41 and a stone-blocking unit 42. The material removal unit 41 includes a scraper 411, which is connected to an extension drive hydraulic cylinder 412. The extension drive hydraulic cylinder 412 is electrically connected to a control terminal to drive the scraper 411 to move along the jaw plate. The bottom of the scraper 411 is provided with a telescopic adapter bottom, which includes a telescopic plate 413 and a flexible scraper strip 414 (rubber material) provided on the bottom side of the telescopic plate 413. The flexible scraper strip 414 is adapted to the jaw plate, so that the flexible scraper strip 414 fits against the jaw plate, which facilitates the scraping off of the material adhering to the jaw plate. A telescopic drive telescopic rod 415 is connected to the top side of the telescopic plate 413. The telescopic drive telescopic rod 415 is provided on the scraper 411 and is electrically connected to the control terminal to adjust the position of the telescopic plate 413 and the flexible scraper strip 414.
[0042] The telescopic part of the telescopic drive telescopic rod 415 is provided with a meshing groove, which meshes with the transmission gear 416 inside the scraper plate 411. The transmission gear 416 meshes with the lifting rack 417 slidably disposed inside the scraper plate 411. The top of the lifting rack 417 is connected to a baffle plate 418, realizing synchronous movement of the flexible scraper 414 and the baffle plate 418. The scraper plate 411 is provided with a material removal mechanism 5, which includes L-shaped connecting plates 51 installed on both sides of the baffle plate 418. A material removal plate 52 is connected between the two L-shaped connecting plates 51, and the material removal plate 52 is disposed opposite to the scraper plate 411.
[0043] When jaw plate cleaning is required, the feeding equipment stops feeding. When there is no material in the crushing chamber between the fixed jaw plate 21 and the movable jaw plate 22, the extension drive hydraulic cylinder 412 is activated, causing the scraper plate 411 to move along the jaw plate, and the baffle plate 418 and the flexible scraper 414 are in the extended state, so that the material adhering to the jaw plate is scraped off. When it reaches the bottom of the jaw plate, the telescopic drive telescopic rod 415 is activated to retract, so that the flexible scraper 414 and the baffle plate 418 retract into the scraper plate 411 at the same time, so that the material adhering to the flexible scraper 414 and the baffle plate 418 is also scraped off by the edge of the scraper plate 411. At the same time, during the descent of the baffle plate 418, the descraper plate 52 further scrapes off the material on the scraper plate 411, realizing the removal of the material adhering to the jaw plate. At the same time, no material remains on the scraper plate 411, which does not affect the next cleaning, and the cleaning efficiency is high.
[0044] Because the shapes and sizes of the stones are different, sometimes due to the stones being too large or having a smooth surface, the stones are prone to jumping in the crushing chamber, causing the subsequent materials to be unable to be crushed. In this embodiment, a stone-jumping unit 42 is provided. The stone-jumping unit 42 includes several feeding components set on the scraper plate 411. The feeding components are connected to anti-slip teeth 422 (made of the same material as the jaw plate or made of the same material as the jaw plate) to increase the friction between the stones and the jaw plate.
[0045] The dispensing assembly includes a winch 421 housed within a protective cover 423 on the back of the scraper blade. The wire rope of the winch 421 passes sequentially through the protective cover 423 and a guide ring 424 and is connected to an anti-slip tooth 422. A guide ring is mounted on the protective cover 423, and a first distance sensor 425 is installed on the guide ring. The anti-slip tooth 422 is located on one side of the baffle plate 418. The front end of the anti-slip tooth 422 is triangular, and the rear end is cylindrical and fixedly connected to the wire rope. Both the winch 421 and the first distance sensor 425 are electrically connected to a control terminal. The dispensing amount of the winch 421 is calculated based on the distance data from the first distance sensor 425.
[0046] When a boulder jumps, the telescopic drive telescopic rod 415 is activated to retract, causing the flexible scraper 414 and the baffle plate 418 to retract simultaneously into the scraper plate 411. The approximate location of the boulder is determined by the distance data from the first distance sensor 425. When the distance of the boulder is greater than or equal to the maximum feed capacity of the winch 421, the position of the scraper plate 411 is adjusted by the extension drive hydraulic cylinder 412, and then the winch 421 is activated to feed the anti-slip teeth 422. When the distance of the boulder is less than the maximum feed capacity of the winch 421, the position of the scraper plate 411 is adjusted by the extension drive hydraulic cylinder 412. When the maximum feeding volume of 21 is reached, the winch 421 is directly started to deploy the anti-slip teeth 422. During the jumping of the stone, the triangular front end of the anti-slip teeth 422 is inserted between the jumping stone and the jaw plate, so that the stone will not jump. At this time, the stone is crushed after being subjected to force. After the stone is crushed, the winch 421 is started to retract the anti-slip teeth 422. At the same time, the extended drive hydraulic cylinder 412 returns to the initial position, and the flexible scraper 414 and the baffle plate 418 return to the extended state to protect the anti-slip teeth 422 and other components.
[0047] Example 2
[0048] The difference between this embodiment and Embodiment 1 is that: the jaw crusher 2 is equipped with an independent hammering mechanism 6 at its top, such as... Figure 4 As shown, the independent hammering mechanism 6 adopts an independent drive method. The independent hammering mechanism 6 includes a gantry frame 61, which is set on the top of the jaw crusher 2 through a first transverse moving module 62. A first longitudinal moving module 63 and a scanning component 64 are set on the gantry frame 61. A hammering component 66 is set on the first longitudinal moving module 63 through a first height adjusting module 65. The first transverse moving module 62, the first longitudinal moving module 63, the first height adjusting module 65, the hammering component 66, and the scanning component 64 are all electrically connected to the control terminal.
[0049] The scanning component 64 includes several linearly distributed second distance sensors and an image acquisition unit. Both the second distance sensors and the image acquisition unit are electrically connected to the control terminal. The image acquisition unit is used to acquire images of the stones to determine their shape. The second distance sensors are used to acquire the height of the stone relative to the sensor. The scanning component 64 acquires images of stones stuck in the jaw crusher 2 to obtain the specific shape and height of the stones. When a large stone gets stuck in the crushing chamber, or when the stone-jumping unit 42 fails, feeding is stopped, and the independent hammering mechanism 6 is activated. The hammering position is determined according to the specific shape and height of the stone. The position of the hammering component 66 is adjusted by the first lateral movement module 62, the first longitudinal movement module 63, and the first height adjustment module 65, and the hammering component 66 is activated to crush the stone. During normal crushing, the hammering component 66 and the scanning component 64 are moved to one side by the first longitudinal movement module 63 to avoid affecting the feeding.
[0050] Example 3
[0051] The difference between this embodiment and embodiment 1 is that: the jaw crusher 2 is equipped with a linked hammer mechanism 7 at its top, such as... Figure 5 - Figure 6 As shown, the linkage hammering mechanism 7 includes a guide frame 71 with several guide holes 711. Hammering rods 72 are slidably disposed within the guide holes 711. One end of each hammering rod 72 is rotatably connected to a crankshaft 73, which is rotatably mounted on the guide frame 71. A camera 75 is connected to the guide frame 71 via an extension rod 74. The camera 75 is positioned opposite the feeding conveyor to capture images of the stones. The crankshaft 73 is connected to the crushing drive mechanism 3 via a belt. A tensioning mechanism 8 is provided on one side of the guide frame 71, including a tensioning wheel 81. The tensioning wheel 81 is mounted on one side of the guide frame 71 via a tension adjustment telescopic rod 82. A second height adjustment module 76 is connected to the bottom of the guide frame 71, and a second lateral adjustment module 77 is connected to the second height adjustment module 76. The second lateral adjustment module 77 is mounted on the frame 1. The tension adjustment telescopic rod 82, the second height adjustment module 76, and the second lateral adjustment module 77 are all electrically connected to a control terminal.
[0052] The specific process is as follows:
[0053] The camera 75 is electrically connected to the control terminal. The control terminal analyzes the images captured by the camera 75. When there are stones exceeding the set size, the second lateral adjustment module 77 and the second height adjustment module 76 are activated, causing the guide frame 71 to move to one side and rise. Simultaneously, the tension adjustment telescopic rod 82 adjusts according to the movement of the second lateral adjustment module 77 and the second height adjustment module 76, keeping the belt taut. After the oversized stones are crushed, the second lateral adjustment module 77 and the second height adjustment module 76 are activated again, causing the guide frame 71 to return to its initial position. Compared with Embodiment 2, this embodiment is suitable for situations where the stones are not large. Driven by the crushing drive motor 31, the hammer rod 72 hammers the stones while simultaneously crushing them with the jaw crusher, improving crushing efficiency.
[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.
Claims
1. A rock crushing device for bridge and tunnel construction, comprising a frame and a control terminal, wherein a jaw crushing mechanism and a crushing drive mechanism are mounted on the frame, and the crushing drive mechanism is connected to the jaw crushing mechanism, characterized in that: The jaw crusher has a cleaning mechanism on the inner side of the jaw plate. The cleaning mechanism includes a unit for cleaning adhesive materials and a unit for trapping stones. The unit for cleaning adhesive materials includes a scraper plate, which is connected to an extension drive hydraulic cylinder. The scraper plate is equipped with a material removal mechanism. The unit for trapping stones includes several feeding components on the scraper plate. The feeding components are connected to anti-slip teeth to increase the friction between the stones and the jaw plate. The crushing drive mechanism, the clearing unit for adhering materials, and the rock-clamping unit are all electrically connected to the control terminal; The bottom of the scraper is provided with a telescopic adapter bottom, which includes a telescopic plate and a flexible scraper strip set on the bottom side of the telescopic plate. The flexible scraper strip is adapted to the jaw plate. A telescopic drive telescopic rod is connected to the top side of the telescopic plate and is set on the scraper plate. The telescopic drive telescopic rod is electrically connected to the control terminal; The telescopic part of the telescopic drive telescopic rod is provided with a meshing groove, which meshes with the transmission gear in the scraper plate. The transmission gear meshes with the lifting rack that is slidably arranged inside the scraper plate. A baffle plate is connected to the top of the lifting rack. The material removal mechanism includes L-shaped connecting plates installed on both sides of the baffle plate, and a material removal plate connected between the two L-shaped connecting plates. The material removal plate and the scraper plate are arranged opposite to each other. The feeding component includes a winch installed inside the protective cover on the back of the scraper. The wire rope of the winch passes through the protective cover and the guide ring in sequence and is connected to the anti-slip teeth. The guide ring is installed on the protective cover and a first distance sensor is installed on the guide ring. The anti-slip teeth are located on one side of the baffle plate. The front end of the anti-slip teeth is triangular and the rear end of the anti-slip teeth is cylindrical and fixedly connected to the wire rope. Both the winch and the first distance sensor are electrically connected to the control terminal, and the corresponding winch deployment amount is calculated based on the distance data from the first distance sensor.
2. The rock crushing device for bridge and tunnel construction according to claim 1, characterized in that: An independent hammering mechanism is provided on the top of the jaw crusher. The independent hammering mechanism includes a gantry frame. The gantry frame is set on the top of the jaw crusher via a first transverse moving module. A first longitudinal moving module and a scanning component are provided on the gantry frame. A hammering component is provided on the first longitudinal moving module via a first height adjustment module. The first lateral movement module, the first longitudinal movement module, the first height adjustment module, the hammering component, and the scanning component are all electrically connected to the control terminal.
3. The rock crushing device for bridge and tunnel construction according to claim 2, characterized in that: The scanning component includes several linearly distributed second distance sensors and image acquisition units. Both the second distance sensors and image acquisition units are electrically connected to the control terminal. The image acquisition unit is used to acquire images of the stone to determine the shape of the stone. The second distance sensors are used to acquire the height of the stone relative to the second distance sensor. The scanning component acquires the specific shape and height of the stone by acquiring the stone stuck in the jaw crusher. The hammering position is determined based on the specific shape and height of the stone. The position of the hammering component is adjusted by the first lateral movement module, the first longitudinal movement module, and the first height adjustment module.
4. The rock crushing device for bridge and tunnel construction according to claim 3, characterized in that: The jaw crusher is equipped with a linkage hammer mechanism at the top. The linkage hammer mechanism includes a guide frame with several guide holes. Hammer rods are slidably installed in the guide holes. One end of each hammer rod is rotatably connected to a crankshaft, which is rotatably mounted on the guide frame. A camera is connected to the guide frame via an extension rod. The camera is positioned opposite the feeding conveyor to collect images of the stones. The camera is electrically connected to the control terminal.
5. A rock crushing device for bridge and tunnel construction according to claim 4, characterized in that: The crankshaft is connected to the crushing drive mechanism via a belt. A tensioning mechanism is provided on one side of the guide frame. The tensioning mechanism includes a tensioning wheel, which is installed on one side of the guide frame via a tension adjustment telescopic rod. A second height adjustment module is connected to the bottom of the guide frame, and a second lateral adjustment module is connected to the second height adjustment module. The second lateral adjustment module is installed on the frame. The tension adjustment telescopic rod, the second height adjustment module, and the second lateral adjustment module are all electrically connected to the control terminal.
6. A rock crushing device for bridge and tunnel construction according to claim 1, characterized in that: The crushing drive mechanism includes a crushing drive motor mounted on the frame. The crushing drive motor is connected to a pulley via a belt. The pulley is connected to an eccentric shaft on the frame. The jaw crushing mechanism includes a jaw plate, which includes a fixed jaw plate and a movable jaw plate. The fixed jaw plate is mounted on the frame. The movable jaw plate is arranged opposite to the fixed jaw plate and is connected to the eccentric shaft. The crushing drive motor is electrically connected to the control terminal.