Hydraulic crushing device

Abstract

This invention relates to a hydraulic crushing device, comprising a hydraulically driven impact mechanism. The impact mechanism has a head at its movable end, on which a crushing mechanism is mounted. The crushing mechanism includes a motor, a rotating disk mounted at the motor's output end, a drill bit at the center of the rotating disk's axis, and a power device for driving the drill bit axially. A circumferentially distributed cutter handle is arranged around the drill bit, with both ends of the handle movably connected to the drill bit's sidewall and the rotating disk, respectively. Multiple sets of cutter heads are arranged on one side of the handle. With this invention, the operator simply holds the handle and aligns the rotating disk with the area to be crushed; the cutter heads on the rotating disk then break up the slag and coke blocks, completing the crushing operation without prolonged impact, saving time and labor. This invention simultaneously possesses both impact and cutting functions, which can be flexibly adjusted according to needs, making it more widely applicable.

Description

Technical Field

[0001] This invention relates to a hydraulic crushing device, belonging to the field of slag crushing technology. Background Technology

[0002] In thermal power plants, dry ash removal systems are commonly used for bottom ash treatment of pulverized coal boilers. These systems employ dry ash dischargers installed between the ash well and ash bin to handle the entire bottom ash treatment process, including collection, pre-crushing, conveying and cooling, crushing, storage, and periodic discharge. With the increasing proportion of coal blending in thermal power plants, the composition of the coal fed into the boiler is becoming more complex. Coal types with certain ash melting points are highly susceptible to boiler coking. Large-scale coking and flaking in the boiler can cause blockages, and the coke blocks, after cooling, can reach a hardness similar to stone.

[0003] Currently, pneumatic picks are commonly used to crush slag. However, due to the excessive hardness and smooth outer surface of large pieces of slag after coking, the impact force of pneumatic picks is insufficient and they are prone to slipping. In addition, the physical requirements for operators are high, which can no longer meet the crushing requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a hydraulic crushing device to solve the problems mentioned in the background art.

[0005] The technical solution of the present invention is as follows:

[0006] A hydraulic crushing device includes an impact mechanism driven by hydraulic pressure, wherein the movable end of the impact mechanism is provided with a head, and a crushing mechanism is installed on the head.

[0007] The crushing mechanism includes a motor, a rotating disk installed at the output end of the motor, a drill bit at the center of the rotating disk, and a power device for driving the drill bit to move along its axial direction. A circumferentially distributed cutter holder is arranged around the drill bit, and the two ends of the cutter holder are movably connected to the side wall of the drill bit and the rotating disk, respectively. Multiple sets of cutter heads are arranged on one side of the cutter holder.

[0008] When the power unit drives the drill bit to move to the outside of the rotary table, the tool holder is tilted.

[0009] When the power unit drives the drill bit to move to the inside of the rotary table, the multiple sets of cutter heads on the cutter holder are set parallel to the rotary table.

[0010] Preferably, the outer side of the rotating disk has grooves that correspond to and match the tool holder.

[0011] Preferably, the two ends of the tool holder are respectively provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft rotates and slides in the corresponding groove.

[0012] Preferably, the outer wall of the drill bit is provided with a second groove along its axial direction, and the second rotating shaft rotates and slides within the corresponding second groove.

[0013] Preferably, a stepped groove is provided on the groove, and a support part adapted to the stepped groove is provided on the side wall of the tool holder. The support part is placed in the stepped groove to restrict the tool holder to be fixed in the groove.

[0014] Preferably, a rotating cylinder is coaxially arranged inside the rotating disk, and an elastic element is arranged between the rotating cylinder and the tool holder. The tool holder has a heat-conducting element, a thermal expansion and contraction element, and a return spring inside. The two ends of the heat-conducting element are respectively connected to the thermal expansion and contraction element and the tool head. The support part is slidably connected to the tool holder to move to the outside of the tool holder or hide inside the tool holder. The return spring is used to push the support part to move to the outside of the tool holder.

[0015] Preferably, the drill bit and power unit are placed inside the drum cavity, and the support part is inclined at one end near the rotating disk.

[0016] Preferably, the fixed end of the impact mechanism is provided with a handle.

[0017] Preferably, it also includes a support frame, on which a slot is provided to mate with the handle, and a support plate is provided on the slot. After the handle is inserted into the slot, the fixed end of the impact mechanism abuts against the support plate.

[0018] Preferably, the support frame is a box, which is equipped with retractable casters, a storage space, and a cover for covering the opening of the storage space; or the support frame is a tripod.

[0019] The present invention has the following beneficial effects:

[0020] The present invention allows operators to break up slag and coke blocks simply by holding the handle and aligning the rotating disc with the area to be broken up, using the blades on the rotating disc. This eliminates the need for prolonged impact and completes the crushing operation, saving time and effort.

[0021] This invention has both impact and cutting functions, which can be flexibly adjusted according to needs, making it more widely applicable;

[0022] When the drill bit moves to the outside of the rotating disk, the handle acts as a reinforcing rib, and the crushing device can be used for impact. When the drill bit moves and is hidden inside the rotating disk, the handle is parallel to the rotating disk, and the cutter head on the handle can be used to cut the slag. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the first type of support frame structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the second type of support frame structure of the present invention;

[0026] Figure 4This is a schematic diagram of the first state structure of the drill bit and tool holder of the present invention;

[0027] Figure 5 This is a schematic diagram of the second state structure of the drill bit and tool holder of the present invention;

[0028] Figure 6 This is a schematic diagram of the tool holder and its mating components of the present invention;

[0029] Figure 7 This is a schematic diagram of the support part and its mating components of the present invention;

[0030] Figure 8 This is a schematic diagram of the drill bit structure of the present invention.

[0031] The reference numerals in the figure are as follows:

[0032] 1. Impact mechanism; 3. End; 31. Motor slot; 32. Reinforcing rib; 4. Crushing mechanism; 41. Motor; 42. Rotary disk; 43. Cutting head; 44. Groove; 45. Handle; 451. First rotating shaft; 452. Second rotating shaft; 46. Rotary drum; 47. Drill bit; 48. Support part; 481. Extension part; 482. Return spring; 483. Thermal expansion and contraction part; 49. Elastic part; 5. Handle; 6. Support frame; 61. Slot; 62. Support plate; 71. Roller; 72. Accommodation space; 73. Cover plate; 74. Support leg. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0034] Example 1:

[0035] Hydraulic crushing devices, such as Figure 1 , Figures 4-6 and Figure 8 As shown:

[0036] Includes impact mechanism 1, end cap 3, and crushing mechanism 4;

[0037] The impact mechanism 1 is existing technology and can be a hydraulic cylinder that is hydraulically driven to reciprocate. Hydraulic drive provides a stronger impact force than air-driven pneumatic picks.

[0038] The fixed end of the impact mechanism 1 is fixedly provided with a handle 5. The impact mechanism 1 and the handle 5 form an L-shaped structure. The handle 5 is used for the operator to hold. The handle 5 is provided with a switch for controlling the impact mechanism 1, the motor 41 and the power device.

[0039] The movable end of the impact mechanism 1 is fixedly provided with an end head 3. Multiple sets of reinforcing ribs 32 are provided between the end head 3 and the fixed end of the impact mechanism 1 to improve the connection strength. A motor slot 31 is opened on the side of the end head 3 away from the impact mechanism 1. The motor slot 31 contains the motor 41 of the crushing mechanism 4.

[0040] The crushing mechanism 4 includes a motor 41, a rotating disk 42, a cutter head 43, a cutter handle 45, a rotating shaft 46, and a drill bit 47. The rotating disk 42 and the rotating drum 46 are coaxially and fixedly connected. The rotating drum 46 is fixed at the output end of the motor 41. The rotation axis of the rotating disk 42 is consistent with the direction of movement of the impact mechanism 1.

[0041] The motor 41 is fixed in the motor slot 31 by screws or welding to provide rotational force to the rotating disk 42, which cuts the slag with the cutter head 43.

[0042] The inner cavity of the rotating drum 46 is equipped with a power unit and a drill bit 47. The power unit can be a hydraulic telescopic cylinder. The drill bit 47 is installed at the output end of the power unit. The drill bit 47 is driven by the power unit to move relative to the inner cavity of the rotating drum 46 along the axis of the rotating drum 46. The drill bit 47 is coaxially arranged with respect to the rotating disk 42 and the rotating drum 46.

[0043] The left and right ends of the handle 45 are respectively provided with a second rotating shaft 452 and a first rotating shaft 451. At least one set of cutting heads 43 is provided on the side of the handle 45 near the outer wall of the rotating disk 42. The cutting heads 43 are made of alloy.

[0044] The rotating disk 42 has multiple sets of grooves 44 on the outer side away from the rotating cylinder 46. The grooves 44 are adapted to the tool holder 45. The multiple sets of grooves 44 are evenly distributed around the drill bit 47. The inner side wall of the groove 44 has a first sliding groove perpendicular to the axis of the drill bit 47. A first slider is linearly connected in the first sliding groove. The first rotating shaft 451 of the tool holder 45 is rotatably connected to the first slider.

[0045] The outer wall of the drill bit 47 has a second groove extending along its axial direction. A second slider is linearly connected in the second groove. The second shaft 452 of the tool holder 45 is rotatably connected to the second slider.

[0046] like Figure 4 As shown, when the power unit shortens, the drill bit 47 extends into the inner cavity of the rotating drum 46. At this time, the upper surface of the handle 45 is flush with the outer wall of the rotating disk 42, the cutter head 43 on the upper surface of the handle 45 protrudes relative to the outer wall of the rotating disk 42, and the upper surface of the drill bit 47 is flush with or lower than the outer wall of the rotating disk 42. At this time, the rotation of the rotating disk 42 cuts the slag through the cutter head 43 on its outer wall.

[0047] like Figure 5As shown, the power unit extends and drives the drill bit 47 to move to the outside of the rotating drum 46. At this time, the drill bit 47 protrudes from the outer wall of the rotating disk 42. The second rotating shaft 452 at the left end of the handle 45 is located at the lower end of the second slide groove. The handle 45 is inclined relative to the drill bit 47. Multiple sets of handles 45 act as reinforcing ribs of the drill bit 47. At this time, the reciprocating motion of the impact mechanism 1 impacts and crushes the slag through the drill bit 47.

[0048] A stepped groove is provided in the groove 44 near the drill bit 47, and a support part 48 is provided on the side wall of the tool holder 45 near the second rotating shaft 452. The support part 48 is adapted to the stepped groove.

[0049] As the power unit shortens from its extended state, the second slider, which is engaged with the second rotating shaft 452, moves upward relative to the second slide groove until the second slider is at its upper limit relative to the second slide groove. The power unit continues to shorten, pushing the tool holder 45 to follow the movement, causing the first slider, which is engaged with the first rotating shaft 451 of the tool holder 45, to move relative to the first slide groove until the power unit shortens to its limit position. At this point, the support part 48 of the tool holder 45 moves just into the stepped groove, and the tool holder 45 is fixed relative to the groove 44 through the cooperation of the support part 48 and the stepped groove.

[0050] The device also includes a support frame 6, on which a slot 61 is provided to cooperate with the handle 5; a support plate 62 is provided on the support frame 6, and after the handle 5 is inserted into the slot 61, the fixed end of the impact mechanism 1 abuts against the support plate 62.

[0051] The impact mechanism 1 is inserted into the support frame 6 via the vertically set handle 5. The support frame 6 can be used to position the impact mechanism 1. The support plate 62 abuts against the fixed end of the impact mechanism 1 and together with the handle 5, it bears the rear thrust generated by the impact mechanism 1.

[0052] In one embodiment, the support frame 6 is a box-shaped structure, on which are provided retractable casters 71; the box-shaped structure is provided with a receiving space 72 and a cover plate 73 for covering the top opening of the receiving space 72, such as... Figure 2 As shown. After the handle 5 is inserted into the slot 61, the operator only needs to align the rotary disc 42 with the position to be broken. The support frame 6 is in contact with the ground, and the operator can sit directly on the support frame 6 to provide downward pressure, thereby making full use of the forward thrust of the impact mechanism 1. Opening the cover plate 73 allows for the loading and unloading of tools, and closing the cover plate 73 allows the operator to sit astride. When it is necessary to move the support frame 6, extending the rollers 71 and contacting the ground allows the support frame 6 to be pushed to move, making transportation more convenient.

[0053] In one embodiment, the support frame 6 is a tripod, such as... Figure 3 As shown.

[0054] The tripod includes three fixed support legs 74, which provide stable support and can adapt to harsh working environments, such as uneven ground or areas with a lot of gravel and debris. Furthermore, the support legs 74 are telescopic components, such as cylinders or hydraulic cylinders. These telescopic components have a telescopic function, allowing for free control of the length of each support leg 74, thus adapting to various working environments, such as on slopes, while maintaining a more stable posture for the cylinder body 11 and the rotating disk 42.

[0055] Example 2: Contains all the contents of Example 1, except that... Figures 6-7 As shown, an elastic element 49 is provided between the outer wall of the tool holder 45 and the outer wall of the rotating cylinder 46. The elastic element 49 can be a tension spring.

[0056] Two sets of support portions 48 are provided on opposite sides of the tool holder 45. The support portions 48 are linearly slidably connected to the tool holder 45. The support portions 48 can move relative to each other to the outside of the tool holder 45 or retract into the inside of the tool holder 45. The moving direction of the support portions 48 is perpendicular to the axis of the rotating disk 42. An L-shaped extension portion 481 is provided on one side of each set of tool holders 45. A return spring 482 and a thermal expansion and contraction component 483 are provided between the two sets of extension portions 481. The return spring 482 can be a compression spring, and the elastic force of the return spring 482 is used to push the extension portion 481 to extend to the outside of the tool holder 45. The thermal expansion and contraction component 483 can be made of a heat-sensitive material. The end of the support portion 48 away from the extension portion 481 is inclined towards the side near the tool head 43. The tool holder 45 has a built-in heat-conducting layer, which transfers the heat of the tool head 43 to the thermal expansion and contraction component 483.

[0057] Working principle:

[0058] When the cutting head 43 is used improperly and its temperature is too high, the temperature is conducted to the thermal expansion and contraction component 483 through the heat-conducting layer. The thermal expansion and contraction component 483 is heated and elongated, pushing the two sets of extensions 481 to move, thereby allowing the support part 48 to extend into the inside of the handle 45.

[0059] At this time, the support part 48 of the tool holder 45 disengages from the stepped groove, and under the action of the elastic force of the return spring 482, the tool holder 45 continues to extend into the groove 44. During this process, the second rotating shaft 452 at the left end of the tool holder 45 moves downward relative to the second sliding groove, thereby realizing that the tool head 43 on the upper surface of the tool holder 45 is lower than the drill bit 47 or retracted into the groove 44 for hiding.

[0060] After the cutter head 43 cools down naturally for a period of time, the thermal expansion and contraction component 483 shortens, causing the support part 48 to move to the outer wall of the tool holder 45. The tool holder 45 can be manually pushed upward. During this process, the support part 48 is reset by cooperating with the return spring 482 on its inclined side, so that the support part 48 is reset and moved into the stepped groove, and the upper surface of the tool holder 45 is flush with the outer wall of the rotating disk 42.

[0061] Furthermore, the end of the thermal expansion and contraction component 483 is connected to the extension 481 via a spring. The spring is used to move the support 48 on the tool holder 45 when the length of the thermal expansion and contraction component 483 remains unchanged, and the deformation of the spring will not affect the extension and contraction of the thermal expansion and contraction component 483 to drive the support 48 in and out.

[0062] The above description is merely an embodiment of the present invention and does not limit the scope of the patent of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A hydraulic crushing device, comprising an impact mechanism (1) driven by hydraulic pressure, wherein the movable end of the impact mechanism (1) is provided with an end head (3), and a crushing mechanism (4) is mounted on the end head (3), characterized in that: The crushing mechanism (4) includes a motor (41), a rotating disk (42) installed at the output end of the motor (41), a drill bit (47) is provided at the axis of the rotating disk (42), and a power device for driving the drill bit (47) to move along its axial direction. A circumferentially distributed cutter handle (45) is provided around the drill bit (47). The two ends of the cutter handle (45) are movably connected to the side wall of the drill bit (47) and the rotating disk (42) respectively. Multiple sets of cutter heads (43) are provided on one side of the cutter handle (45). When the power unit drives the drill bit (47) to move to the outside of the rotary disk (42), the tool holder (45) is tilted. When the power unit drives the drill bit (47) to move to the inside of the rotary disk (42), the multiple sets of cutter heads (43) on the cutter shank (45) are arranged parallel to the rotary disk (42).

2. The hydraulic crushing device as described in claim 1, characterized in that: The outer side of the rotating disk (42) has grooves (44) that correspond to and match the knife handle (45).

3. The hydraulic crushing device as described in claim 2, characterized in that: The two ends of the handle (45) are respectively provided with a first rotating shaft (451) and a second rotating shaft (452). The first rotating shaft (451) rotates and slides in the corresponding groove (44).

4. The hydraulic crushing device as described in claim 3, characterized in that: The outer wall of the drill bit (47) is provided with a second groove along its axial direction, and the second rotating shaft (452) rotates and slides in the corresponding second groove.

5. The hydraulic crushing device as described in claim 4, characterized in that: A stepped groove is provided on the groove (44), and a support part (48) adapted to the stepped groove is provided on the side wall of the tool holder (45). The support part (48) is placed in the stepped groove to restrict the tool holder (45) to be fixed in the groove (44).

6. The hydraulic crushing device as described in claim 5, characterized in that: A rotating drum (46) is coaxially arranged inside the rotating disk (42). An elastic element (49) is arranged between the rotating drum (46) and the tool holder (45). The tool holder (45) contains a heat-conducting element, a thermal expansion and contraction element (483), and a return spring (482). The two ends of the heat-conducting element are connected to the thermal expansion and contraction element (483) and the tool head (43), respectively. The support part (48) is slidably connected to the tool holder (45) to move to the outside of the tool holder (45) or hide inside the tool holder (45). The return spring (482) is used to push the support part (48) to move to the outside of the tool holder (45).

7. The hydraulic crushing device as described in claim 6, characterized in that: The drill bit (47) and the power unit are placed inside the drum (46), and the support part (48) is inclined at one end near the rotating disk (42).

8. The hydraulic crushing device as described in claim 1, characterized in that: The fixed end of the impact mechanism (1) is provided with a handle (5).

9. The hydraulic crushing device as described in claim 8, characterized in that: It also includes a support frame (6), on which a slot (61) is provided to cooperate with the handle (5), and a tray (62) is provided on the slot (61). After the handle (5) is inserted into the slot (61), the fixed end of the impact mechanism abuts against the tray (62).

10. The hydraulic crushing device as described in claim 8, characterized in that: The support frame (6) is a box, and the box is equipped with retractable casters (71). The box is also equipped with a receiving space (72) and a cover plate (73) for covering the opening of the receiving space (72); or The support frame (6) is a tripod.

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