A breaker with an auxiliary gravel crushing device

Abstract

The present invention belongs to the technical field of construction machinery, and provides a breaker with an auxiliary gravel crushing device, including: a breaker lifting pipe and a drill rod; the bottom of the breaker lifting pipe is set to be open, and a drill rod lifting rod is elastically and liftably arranged inside the breaker lifting pipe. The bottom end of the drill rod lifting rod is detachably installed with a drill rod. By setting the cooperation between structures such as a motor and a spring, the drill rod is controlled to perform cyclic lifting. Then, while maintaining a certain buffering capacity of the drill rod, it can also knock and break some ground that does not require a high impact force, which can overall reduce the use and manufacturing costs. At the same time, by setting a gravel crushing mechanism on one side of the breaker lifting pipe that synchronously lifts and runs with the drill rod, on the premise that the drill rod does not stop, the gravel and soil generated by its knocking are synchronously and secondarily extruded and crushed, fully improving the continuity, sufficiency of crushing and operating efficiency of the use of this breaker.

Description

Technical Field

[0001] The present invention belongs to the technical field of construction machinery, and particularly relates to a breaker with an auxiliary gravel crushing device. Background Art

[0002] A breaker is mainly a device that uses pressure oil as power to break the object surface. It can be installed on a loader, and there is also a handheld breaker. The overall structure is simple, with few faults and convenient maintenance. With the continuous progress of technology, there are more and more types of breakers. The breaker is not only applicable to rock and concrete pavements, and a suitable breaker needs to be used according to the hardness and area of the ground to be broken.

[0003] The existing patent application number is: 2012102913937, which discloses a breaker with an auxiliary gravel crushing device, including a gravel crusher splint for clamping and squeezing substances such as stones, a gravel crusher swing arm for driving the gravel crusher splint to move and transmitting the squeezing force, a breaker body for controlling and providing the hydraulic pressure required for the operation of the breaker and the gravel crusher, etc. When using the breaker for operation, the gravel crusher can be used for auxiliary operation. The breaker and the gravel crusher share a set of hydraulic pipelines and can be quickly switched under the control of a switch, greatly improving the work efficiency; after using and analyzing this device and the existing breaker, it is found that such breakers have the following problems: (1) Using a hydraulic pipeline to control the operation of the drill rod, when it is used on some pavements with low hardness or on the ground where rock and soil are mixed, it is a case of using a sledgehammer to crack a nut, which will increase the use cost; (2) It is basically connected and driven to a machine such as a loader for use, and it is inconvenient to use for breaking small areas of the ground; (3) Some breakers with an auxiliary crushing device cannot be used for synchronous crushing with the drill rod of the breaker body, affecting the crushing speed and efficiency;

[0004] Therefore, in view of the above problems, it is necessary to design a breaker that can solve these problems. Summary of the Invention

[0005] The purpose of the embodiment of the present invention is to provide a breaker with an auxiliary gravel crushing device, aiming to solve the above problems.

[0006] The present invention is implemented as follows. A structural diagram of a breaker hammer with an auxiliary gravel crushing device includes a breaker hammer lifting pipe and a drill rod. The bottom of the breaker hammer lifting pipe is open. An elastic lifting drill rod is arranged inside the breaker hammer lifting pipe. The bottom end of the drill rod lifting rod is detachably installed with a drill rod. An elastic buffer mechanism is arranged outside the upper side of the drill rod lifting rod inside the breaker hammer lifting pipe to provide a certain degree of buffer distance for the drill rod at the bottom end of the drill rod lifting rod when the drill rod strikes and breaks the ground. At the same time, a lifting power unit is connected to the top end of the drill rod lifting rod to drive the drill rod lifting rod to drive the elastic buffer mechanism and the drill rod at the bottom to circulate up and down, continuously strike and break the ground. A vertical lifting slide opening is formed on the pipe wall of the breaker hammer lifting pipe on one side of the lifting power unit. A gravel crushing mechanism connected to the lifting power unit is arranged outside the lifting slide opening. The gravel crushing mechanism moves synchronously with the lifting power unit. When the lifting power unit first controls the drill rod at the bottom of the drill rod lifting rod to strike and break the ground and the generated gravel and hard soil are separated from the original ground, the gravel crushing mechanism immediately descends to clamp and crush them, ensuring that the gravel and hard soil formed by each strike of the drill rod on the ground are fully crushed synchronously. An installation column is installed at the top of the breaker hammer lifting pipe. A loader connection hole is formed in the middle of the top of the installation column. Loader and other equipment can be detachably connected outside the loader connection hole. The breaker hammer is driven by the loader to operate automatically. And a plurality of hand-held support connection holes are formed on the circumferential side wall of the installation column. Hand-held supports can be detachably connected outside the hand-held support connection holes, that is, the hand-held supports are used to manually control the breaker hammer to perform small-area ground breaking;

[0007] Among them, according to the size of the ground to be broken, it is possible to choose to connect a loader through the loader connection hole for mechanical automatic movement or connect a hand-held support through the installation column for manual hand-held movement. Then, a drill rod of appropriate size and model is installed at the bottom of the drill rod lifting rod. The lifting power unit is started to control the operation of the elastic buffer mechanism and simultaneously drive the drill rod at the bottom to strike and break the ground. The generated gravel and hard soil are transferred below the gravel crushing mechanism. The gravel crushing mechanism operates synchronously with the lifting power unit and simultaneously contacts and squeezes and crushes the gravel and the like after the drill rod breaks them, realizing the operation mode of continuously striking and crushing the same position without stopping for the breaker hammer.

[0008] The beneficial effects of a breaker hammer with an auxiliary gravel crushing device provided by the present invention: By setting up the cooperation between structures such as a motor and a spring to control the cyclic lifting of the drill rod, while maintaining a certain buffer capacity of the drill rod, it can also strike and break some grounds that do not require a high impact force, which can overall reduce the use cost. At the same time, adopting the above structure can also greatly reduce the manufacturing cost;

[0009] By setting up installation columns, hand-held support connection holes, and hand-held support connection holes, the breaker can be connected to a loader automation device or a hand-held support manual control device, facilitating the selection according to the size of the area of the ground to be broken;

[0010] By setting up a gravel crushing mechanism on one side of the breaker lifting pipe that synchronously lifts and runs with the drill rod, while the drill rod is not stopped, the crushed stones and soil generated by its knocking are synchronously and secondarily squeezed and crushed, fully improving the continuity, sufficiency of crushing, and high efficiency of the operation of this breaker. Description of the Drawings

[0011] Figure 1 It is a three-dimensional structural schematic diagram of a breaker with an auxiliary gravel crushing device.

[0012] Figure 2 It is a front view structural schematic diagram of a breaker with an auxiliary gravel crushing device.

[0013] Figure 3 It is a rear view structural schematic diagram of a breaker with an auxiliary gravel crushing device.

[0014] Figure 4 It is a top view structural schematic diagram of a breaker with an auxiliary gravel crushing device.

[0015] Figure 5 It is an internal structural schematic diagram of the drill rod lifting rod in a breaker with an auxiliary gravel crushing device.

[0016] Figure 6 It is a structural schematic diagram of a breaker with an auxiliary gravel crushing device installed with installation columns.

[0017] Figure 7 For Figure 2 The enlarged structural schematic diagram of A1 in

[0018] Figure 8 It is a structural schematic diagram of the drill rod with a connecting screw in a breaker with an auxiliary gravel crushing device.

[0019] Figure 9 It is a structural schematic diagram of the drill rod with a connecting pin in a breaker with an auxiliary gravel crushing device;

[0020] In the drawings: breaker lifting pipe 10, drill rod lifting rod 11, drill rod connecting cylinder 12, drill rod 13, connecting screw 131, connecting pin 132, lifting servo motor 14, fixed block 15, main drive shaft 16, swing connecting rod one 17, swing connecting rod two 18, connecting bolt one 19, piston rod 20, elastic limit bin 21, limit ring 22, spring one 23, piston plate 24, spring two 25, spring one 26, lifting sliding port 27, fixed

[0021] Connecting rod 28, auxiliary gravel crushing mechanism plate 29, reinforcing rod 30, gravel crushing plate 31, connecting bolt two 32, L-shaped connecting block 33, adjusting rod one 34, telescopic rod 35, telescopic rod cylinder 36, limit block 37, spring two 38, pressure sensor 39, moving chute 40, gravel pushing rod 41, adjusting rod two 42, nut 43, ball screw 44, horizontal servo motor 45, spring three 46, mounting post 47, handheld bracket connection hole 48, loader connection hole 49. Detailed implementation manners

[0022] 0 In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] The following describes in detail the specific implementation of the present invention with reference to specific embodiments.

[0024] As shown in the figure, it is a structural diagram of a breaker with an auxiliary gravel crushing device provided by an embodiment of the present invention, including: a breaker lifting pipe 10 and a drill rod 13; the bottom of the breaker lifting pipe 10 is provided with an opening

[0025] As Figures 1-7 shown, a breaker lifting pipe 10 is elastically and vertically arranged inside the breaker lifting pipe 10. The bottom end of the drill rod lifting rod 11 is detachably installed with a drill rod 13. An elastic buffer mechanism is arranged outside the upper side of the drill rod lifting rod 11 inside the breaker lifting pipe 10 to keep the drill rod 13 at the bottom end of the drill rod lifting rod 11 when hitting the ground

[0026]

[0027] ​During crushing, a certain degree of buffer distance is provided for the drill rod 13. At the same time, a lifting power unit is arranged at the top connection 0 of the drill rod lifting rod 11, which is used to drive the drill rod lifting rod 11 to drive the elastic buffer mechanism and the drill rod 13 at the bottom to lift and lower cyclically, continuously knocking and crushing the ground. A vertical lifting slide opening 27 is opened on the pipe wall of the breaker hammer lifting pipe 10 on one side of the lifting power unit. A crushing mechanism connected to the lifting power unit is arranged outside the lifting slide opening 27. The crushing mechanism moves synchronously with the lifting power unit. When the lifting power unit first controls the drill rod 13 at the bottom of the drill rod lifting rod 11 to knock and crush the ground, and the crushed stones and hard crushed soil are separated from the original ground, the crushing mechanism immediately descends to clamp and crush them, ensuring that the crushed stones and hard crushed soil formed by each knock of the drill rod 13 on the ground are fully crushed synchronously. An installation column 47 is installed at the top of the breaker hammer lifting pipe 10. A loader connection hole 49 is opened in the middle of the top of the installation column 47. Loader and other equipment are detachably connected outside the loader connection hole 49. The breaker hammer is driven by the loader to operate automatically. In addition, a plurality of hand-held support connection holes 48 are opened on the circumferential side wall of the installation column 47. Hand-held supports are detachably connected outside the hand-held support connection holes 48, that is, the hand-held supports are used to manually control the breaker hammer to perform small-area and small-scale ground crushing;

[0028] Among them, according to the size of the ground to be crushed, it is possible to choose to connect a loader through the loader connection hole 49 for mechanical automatic movement or connect a hand-held support through the installation column 47 for manual hand-held movement. Then, a drill rod 13 of appropriate size and model is installed at the bottom of the drill rod lifting rod 11. The lifting power unit is started to control the operation of the elastic buffer mechanism, and at the same time, the drill rod 13 at the bottom is driven to knock and crush the ground synchronously. The crushed stones and hard crushed soil generated are transferred to the lower part of the crushing mechanism. The crushing mechanism runs synchronously with the lifting power unit and then contacts and squeezes and crushes the crushed stones and the like after the drill rod 13 is broken, realizing the operation mode of continuously knocking and crushing the same position without stopping for this breaker hammer.

[0029] As a preferred embodiment of the present invention, the lifting power unit includes a semi-circular fixed block 15 installed on the upper side inside the breaker lifting pipe 10. A main drive shaft 16 is rotatably arranged in the middle of the vertical side wall of the fixed block 15. One end of the main drive shaft 16 facing the outside of the breaker lifting pipe 10 is connected to a lifting servo motor 14 arranged outside the breaker lifting pipe 10. The other end of the main drive shaft 16 is fixedly connected to a swing connecting rod one 17. The end of the swing connecting rod one 17 is connected to a swing connecting rod two 18 through a rotating shaft. The bottom end of the swing connecting rod two 18 is rotatably connected to a vertical piston rod 20 through a connecting bolt one 19. That is, when the lifting servo motor 14 operates, it drives the main drive shaft 16 to rotate, and then drives the swing connecting rod one 17 to rotate synchronously. Furthermore, through the rotational connection between the swing connecting rod one 17 and the swing connecting rod two 18, and the rotational connection between the swing connecting rod two 18 and the top end of the piston rod 20 through the connecting bolt one 19, the piston rod 20 is controlled to perform cyclic lifting and lowering;

[0030] A telescopic cavity with an open top is formed inside the drill rod lifting rod 11. The bottom end of the piston rod 20 extends into the telescopic cavity and is placed inside the telescopic cavity to move cyclically under the connection of the swing connecting rod two 18. A piston plate 24 is installed at the bottom end of the piston rod 20 placed inside the telescopic cavity. The diameter of the piston plate 24 is larger than the diameter of the top opening of the telescopic cavity, which is used to prevent the piston rod 20 from detaching from the inside of the telescopic cavity. The piston plate 24 is slidably arranged inside the telescopic cavity. A spring one 26 is elastically connected between the bottom of the piston plate 24 and the inner bottom of the telescopic cavity. A spring two 25 is sleeved on the piston rod 20 between the top of the piston plate 24 and the opening of the telescopic cavity. During the cyclic lifting and lowering of the piston rod 20, the piston plate 24 is driven to move inside the telescopic cavity. At the same time, under the elastic limiting action of the bottom spring one 26 and the upper spring two 25, the drill rod lifting rod 11 is synchronously controlled to lift and lower, and a certain degree of buffering effect is provided for the piston rod 20.

[0031] As a preferred embodiment of the present invention, the elastic buffering mechanism includes an elastic limiting bin 21 formed inside the breaker lifting pipe 10. The upper and lower diameters of the elastic limiting bin 21 are the same as those of the drill rod lifting rod 11, and the drill rod lifting rod 11 passes through the inside of the elastic limiting bin 21 during lifting and lowering. A spring one 23 is sleeved outside the drill rod lifting rod 11 placed inside the elastic limiting bin 21. A limiting ring 22 with a diameter larger than that of the spring one 23 is installed on the outer side wall of the drill rod lifting rod 11 located inside the elastic limiting bin 21. The limiting ring 22 is clamped in the middle of the spring one 23. When the piston rod 20 drives the drill rod lifting rod 11 to lift and lower, due to the elastic limitation of the limiting ring 22 by the upper and lower spring one 23, a certain distance of buffering effect is further provided for the lifting and lowering of the drill rod lifting rod 11, ensuring that when the drill rod 13 at the bottom of the drill rod lifting rod 11 strikes the ground, it can be automatically relieved, preventing damage to the internal structure of the breaker lifting pipe 10 due to excessive impact force.

[0032] As a preferred embodiment of the present invention, the gravel crushing mechanism includes an auxiliary gravel crushing mechanism plate 29 disposed outside the lifting slide 27. A fixed connecting rod 28 is connected to the side of the auxiliary gravel crushing mechanism plate 29 facing the lifting slide 27. A plurality of reinforcing rods 30 are connected between the fixed connecting rod 28 and the auxiliary gravel crushing mechanism plate 29. The fixed connecting rod 28 movably passes through the lifting slide 27 and is connected to the piston rod 20. That is, when the piston rod 20 moves up and down, through the connection of the fixed connecting rod 28, the auxiliary gravel crushing mechanism plate 29 is synchronously driven to move, realizing the function of the gravel crushing mechanism and the drill rod 13 running synchronously. The two sides of the auxiliary gravel crushing mechanism plate 29 are symmetrically structured. Two groups of gravel plates 31 are provided on the lower sides of the two sides of the auxiliary gravel crushing mechanism plate 29. A plurality of parallel spring three 46 are elastically connected between the tops of the two groups of gravel plates 31. When the spring three 46 is in a free telescopic state, it controls the tops of the two groups of gravel plates 31 to approach each other, forming an inverted V-shaped structure. In order to be able to initially contact and clamp the gravel and hard soil after the drill rod 13 is struck downward, on the back side of the two groups of gravel plates 31 facing each other, an L-shaped connecting block 33 is rotatably connected through a connecting bolt two 32. The top of the L-shaped connecting block 33 is connected with an adjusting rod one 34. The adjusting rod one 34 can adjust the height of the L-shaped connecting block 33. The top of the adjusting rod one 34 is connected with a telescopic rod 35 that movably passes through the auxiliary gravel crushing mechanism plate 29. An expansion rod cylinder 36 is installed on the auxiliary gravel crushing mechanism plate 29 corresponding to the top of the telescopic rod 35. The top of the telescopic rod 35 extends into the expansion rod cylinder 36 and is connected with a limit block 37. The top of the limit block 37 is connected with a spring two 38. The top of the spring two 38 is connected with a pressing block. A pressure sensor 39 is provided on the inner top of the expansion rod cylinder 36 corresponding to the top of the pressing block. A set of extrusion gravel crushing components are contactingly arranged on the back of the gravel plate 31 on the lower side of the L-shaped connecting block 33. The top of the extrusion gravel crushing components is connected to the auxiliary gravel crushing mechanism plate 29. It follows the operation of the auxiliary gravel crushing mechanism plate 29 and pushes the two sides of the gravel plates 31 to move obliquely downward towards each other. By presetting the pressure limit value of the pressure sensor 39 and adjusting the initial height of the gravel plates 31 through the adjusting rod one 34, the initial height of the gravel plates 31 is lower than the initial height of the drill rod 13. During the process of the lifting servo motor 14 running to drive the drill rod 13 to descend, the bottom end of the drill rod 13 first contacts the ground and strikes, and then when the bottom end of the gravel plate 31 contacts the ground, the auxiliary gravel crushing mechanism plate 29 continues to descend. At this time, the bottom end of the gravel plate 31 is resisted by the ground, the limit block 37 rises, and the spring two 38 is compressed. At this time, it drives the pressing block to apply pressure to the pressure sensor 39. When the pressure received by the pressure sensor 39 reaches the preset value, the extrusion gravel crushing components are automatically started at this time. The extrusion gravel crushing components control the gravel plates 31 to approach each other and move downward synchronously, and crush the gravel and hard soil clamped between the two groups of gravel plates 31.

[0033] As a preferred embodiment of the present invention, the extrusion and crushing assembly includes a rectangular groove formed at the top of the auxiliary crushing mechanism plate 29 on one side of the telescopic rod cylinder 36. A ball screw 44 is rotatably arranged inside the rectangular groove. One end of the ball screw 44 is connected to a transverse servo motor 45, and the other end is rotatably arranged in the inner wall of the rectangular groove through a bearing. A nut 43 is threadedly connected to the ball screw 44. A phase guiding device for restricting its self-rotation is arranged on the nut 43. That is, when the transverse servo motor 45 is started, the ball screw 44 rotates, and then the nut 43 is controlled to reciprocate on the ball screw 44. A slideway is formed at the bottom of the rectangular groove. A second adjusting rod 42 is connected to the bottom of the nut 43 corresponding to the position of the slideway. The bottom end of the second adjusting rod 42 is provided with a crushing push rod 41 of an L-shaped structure. A moving chute 40 is formed on the back side wall of the crushing plate 31 corresponding to the bottom end of the crushing push rod 41. The crushing push rod 41 is in contact with and arranged inside the moving chute 40. The height of the crushing push rod 41 is adjusted through the second adjusting rod 42. Then, when the nut 43 moves, through the connection of the second adjusting rod 42 and the lifting of the auxiliary crushing mechanism plate 29, the crushing push rod 41 is synchronously controlled to push the crushing plate 31 to swing and approach each other, so as to clamp and extrude and crush the crushed stones and the like after being struck. Since the drill rod 13 will be lifted and lowered multiple times in a short time to strike the ground during operation, the crushing plate 31 that moves up and down and horizontally synchronously with the drill rod 13 also needs to ensure the same speed as the drill rod 13. Therefore, the operating speed of the transverse servo motor 45 needs to keep the round-trip time of controlling the nut 43 the same as that of the drill rod 13, so as to achieve the rapid crushing of crushed stones and the like.

[0034] As a preferred embodiment of the present invention, since the bottom end of the crushing plate 31 contacts the ground first and then needs to rotate around the connecting bolt two 32, the contact between the crushing plate 31 and the ground will increase the resistance of its rotation. Therefore, the bottom of the crushing plate 31 is set as an arc structure to reduce the friction force in contact with the ground. At the same time, in order to increase the clamping and extrusion stability of the crushed stones by the two crushing plates 31 on both sides, the opposite sides of the two crushing plates 31 are set as corrugated structures.

[0035] As a preferred embodiment of the present invention, the first adjusting rod 34 and the second adjusting rod 42 have the same structure, both including a screw barrel and two screw rods. The two screw rods are respectively threadedly connected to one end of the screw barrel. By rotating the screw barrel, the lengths of the two screw rods at both ends can be adjusted to achieve the adjustment of the length.

[0036] As a preferred embodiment of the present invention, the bottom end of the drill rod lifting rod 11 is connected to a drill rod connecting cylinder 12. A variety of structures are arranged inside the bottom end of the drill rod connecting cylinder 12, including an internal thread hole for threaded connection or a clamping groove for clamping connection. That is, according to the structure of different drill rods 13, the drill rod connecting cylinder 12 with the corresponding structure is used for connection;

[0037] Refer to Figures 8-9, a connecting screw 131 is installed at the top end of the drill rod 13, or a connecting cotter pin 132 is installed. The drill rod 13 can be detachably connected to the drill rod connecting cylinder 12 with an internal threaded hole through the connecting screw 131, and the drill rod connecting cylinder 12 with a slot can be detachably connected through the connecting cotter pin 132. The drill rod 13 mentioned in this technical solution is only a part of it. In the actual use process, drill rods 13 with different structures are applicable to this breaker.

[0038] Since the lifting of the breaker uses a motor and a spring structure to drive the drill rod 13 to perform cyclic lifting, and then strikes and breaks the ground, the power driven by the hydraulic device is limited. Therefore, this breaker is applicable to some ground with not high hardness, or the road surface mixed with rocks and soil. However, by replacing this lifting power unit and using the crushing mechanism of this breaker, it still belongs to the protection scope of this technical solution as a whole;

[0039] The lifting servo motor 14, the loader connection hole 49, and the lateral servo motor 45 are all electrically connected to a set of control boxes. The control boxes are arranged on the side wall of the breaker lifting pipe 10. Using the control module inside the control box, the pressure signal received by the pressure sensor 39 is received, analyzed, processed, and used to control the operation of the corresponding lateral servo motor 45 to maintain an automated working process.

[0040] In the above embodiments of the present invention, a breaker with an auxiliary gravel crushing device is provided. When in use, according to the size of the ground area to be broken, it is selected to connect a loader through the loader connection hole 49 for mechanical automated movement or to connect a hand-held bracket through the mounting column 47 for manual hand-held movement. Then, a breaker rod 13 of a suitable size and model is installed at the bottom of the breaker rod lifting rod 11. Then, the distance difference between the gravel plate 31 and the bottom end of the breaker rod 13 is adjusted through the first adjusting rod 34, and the height of the bottom end of the gravel pushing rod 41 placed inside the gravel pushing rod 41 is adjusted through the second adjusting rod 42. When the lifting servo motor 14 is started to drive the main drive shaft 16 to rotate, the piston rod 20 is driven to move inside the telescopic cavity through the swing connecting rod one 17 and the swing connecting rod two 18. Then, under the connection of the piston plate 24, the second sleeve spring 25, and the first spring 26, the breaker rod lifting rod 11 is synchronously driven to move inside the elastic limiting bin 21. At this time, the breaker rod 13 is synchronously controlled to contact and strike the ground. During the downward movement of the breaker rod 13, the bottom end of the breaker rod 13 first contacts the ground for striking and crushing. The generated gravel and hard soil are separated and transferred to the middle lower part of the two gravel plates 31 on both sides. The gravel plates 31 follow the breaker rod 13 to descend. When the bottom of the gravel plates 31 contacts the ground, the auxiliary gravel crushing mechanism plate 29 continues to descend. At this time, the bottom of the gravel plates 31 is resisted by the ground, and the second spring 38 on the upper side thereof is compressed, driving the pressing block to squeeze the pressure sensor 39. When the pressure received by the pressure sensor 39 reaches a predetermined value, the transverse servo motor 45 is started to operate at this time. The transverse servo motor 45 quickly operates to control the nut 43 to move back and forth along the ball screw 44 in a short time, and then drives the gravel pushing rod 41 at the bottom to push the two gravel plates 31 to swing and approach each other, and crush the clamped gravel and the like.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A breaker with an auxiliary gravel crushing device, characterized in that, The described breaker with an auxiliary gravel crushing device includes: a breaker lifting pipe (10) and a drill rod (13); the bottom of the breaker lifting pipe (10) is open, and a drill rod lifting rod (11) is elastically and liftably arranged inside the breaker lifting pipe (10), and the bottom end of the drill rod lifting rod (11) is detachably installed with a drill rod (13); An elastic buffer mechanism is arranged on the upper side of the drill rod lifting rod (11) placed inside the breaker lifting pipe (10), and is used to keep the drill rod (13) at the bottom end of the drill rod lifting rod (11) provide a certain degree of buffer distance for the drill rod (13) when knocking and crushing the ground; A lifting power unit is connected and arranged at the top end of the drill rod lifting rod (11), and is used to drive the drill rod lifting rod (11) to drive the elastic buffer mechanism and the drill rod (13) at the bottom to circulate up and down, continuously knock and crush the ground. A vertical lifting slide opening (27) is opened on the pipe wall of the breaker lifting pipe (10) on one side of the lifting power unit; A gravel crushing mechanism is arranged outside the lifting slide opening (27) connected to the lifting power unit. The gravel crushing mechanism moves synchronously with the lifting power unit. The lifting power unit first controls the drill rod (13) at the bottom of the drill rod lifting rod (11) to knock and crush the ground. When the generated gravel and hard crushed soil break away from the original ground, the gravel crushing mechanism immediately descends to clamp and crush them; An installation column (47) is installed at the top of the breaker lifting pipe (10). A loader connection hole (49) is opened in the middle of the top of the installation column (47). A loader is detachably connected outside the loader connection hole (49). A plurality of hand-held support connection holes (48) are opened on the circumferential side wall of the installation column (47), and a hand-held support is detachably connected outside the hand-held support connection hole (48); The lifting power unit includes a semi-circular fixed block (15) installed on the upper side inside the breaker lifting pipe (10). A main drive shaft (16) is rotatably arranged in the middle of the vertical side wall of the fixed block (15). One end of the main drive shaft (16) facing the outside of the breaker lifting pipe (10) is connected with a lifting servo motor (14) arranged outside the breaker lifting pipe (10). The other end of the main drive shaft (16) is fixedly connected with a swing connecting rod one (17). The end of the swing connecting rod one (17) is connected with a swing connecting rod two (18) through a rotating shaft. The bottom end of the swing connecting rod two (18) is rotatably connected with a vertical piston rod (20) through a connecting bolt one (19); A telescopic cavity with an open top end is opened inside the drill rod lifting rod (11). The bottom end of the piston rod (20) extends into the telescopic cavity, and the connection of the swing connecting rod two (18) moves cyclically inside the telescopic cavity. A piston plate (24) is installed at the bottom end of the piston rod (20) placed inside the telescopic cavity. The diameter of the piston plate (24) is larger than the diameter of the top opening of the telescopic cavity. The piston plate (24) is slidably arranged inside the telescopic cavity. A spring one (26) is elastically connected between the bottom of the piston plate (24) and the inner bottom of the telescopic cavity. A spring two (25) is sleeved on the piston rod (20) between the top of the piston plate (24) and the opening of the telescopic cavity; The elastic buffer mechanism includes an elastic limit bin (21) opened inside the lifting pipe (10) of the breaker. The upper and lower diameters of the elastic limit bin (21) are the same as those of the drill rod lifting rod (11). The drill rod lifting rod (11) passes through the inside of the elastic limit bin (21) in a lifting manner. A first sleeve spring (23) is sleeved outside the drill rod lifting rod (11) inside the elastic limit bin (21). A limit ring (22) with a diameter larger than that of the first sleeve spring (23) is installed on the outer side wall of the drill rod lifting rod (11) inside the elastic limit bin (21). The crushing mechanism includes an auxiliary crushing mechanism plate (29) arranged outside the lifting sliding opening (27). A fixed connecting rod (28) is connected to the side of the auxiliary crushing mechanism plate (29) facing the lifting sliding opening (27). A plurality of reinforcing rods (30) are connected between the fixed connecting rod (28) and the auxiliary crushing mechanism plate (29). The fixed connecting rod (28) movably passes through the lifting sliding opening (27) and is connected to the piston rod (20). Both sides of the auxiliary crushing mechanism plate (29) are symmetrically structured. Two groups of crushing plates (31) are arranged on both sides below the auxiliary crushing mechanism plate (29). A plurality of parallel third springs (46) are elastically connected between the tops of the two groups of crushing plates (31). When the third springs (46) are in a free expansion and contraction state, the tops of the two groups of crushing plates (31) are controlled to approach each other to form an inverted V-shaped structure. The opposite back sides of the two groups of crushing plates (31) are rotatably connected by a second connecting bolt (32) to an L-shaped connecting block (33). The top of the L-shaped connecting block (33) is connected to a first adjusting rod (34). The first adjusting rod (34) can adjust the height of the L-shaped connecting block (33). The top of the first adjusting rod (34) is connected to a telescopic rod (35) that movably passes through the auxiliary crushing mechanism plate (29). A telescopic rod cylinder (36) is installed on the auxiliary crushing mechanism plate (29) corresponding to the top of the telescopic rod (35). The top of the telescopic rod (35) extends into the telescopic rod cylinder (36) and is connected to a limit block (37). The top of the limit block (37) is connected to a second spring (38). The top of the second spring (38) is connected to a pressing block. A pressure sensor (39) is arranged on the inner top of the telescopic rod cylinder (36) corresponding to the top of the pressing block. A set of extrusion crushing components are contactingly arranged on the back of the crushing plate (31) on the lower side of the L-shaped connecting block (33). The top of the extrusion crushing components is connected to the auxiliary crushing mechanism plate (29).

2. The breaker with an auxiliary gravel crushing device according to claim 1, characterized in that, The extrusion and crushing assembly includes a rectangular groove formed at the top of an auxiliary crushing mechanism plate (29) on one side of the telescopic rod cylinder (36). A ball screw (44) is rotatably arranged inside the rectangular groove. One end of the ball screw (44) is connected to a transverse servo motor (45), and the other end is rotatably arranged in the inner wall of the rectangular groove through a bearing. A nut (43) is threadedly connected to the ball screw (44). A phase guiding device for restricting its self-rotation is arranged on the nut (43). A slideway is formed at the bottom of the rectangular groove. An adjusting rod two (42) is connected to the bottom of the nut (43) corresponding to the slideway. A crushing push rod (41) with an L-shaped structure is installed at the bottom end of the adjusting rod two (42). A moving chute (40) is formed on the back side wall of the corresponding crushing plate (31) at the bottom end of the crushing push rod (41). The crushing push rod (41) is in contact with and arranged inside the moving chute (40).

3. The breaker with an auxiliary gravel crushing device according to claim 2, characterized in that, The bottom of the crushing plate (31) is of an arc-shaped structure, and the opposite sides of the two groups of crushing plates (31) are of a corrugated structure.

4. A breaker with an auxiliary gravel crushing device according to claim 3, characterized in that, The adjusting rod one (34) has the same structure as the adjusting rod two (42), and both include a screw barrel and two screw rods. The two screw rods are respectively threadedly connected to one end of the screw barrel.

5. The breaker with an auxiliary gravel crushing device according to claim 4, characterized in that, The bottom end of the drill rod lifting rod (11) is connected to a drill rod connecting cylinder (12). A variety of structures are arranged inside the bottom end of the drill rod connecting cylinder (12). A connecting screw (131) or a connecting pin (132) is installed at the top end of the drill rod (13).

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