Hydraulic crushing device

Abstract

The invention relates to a hydraulic crushing device which comprises a hydraulically-driven impact mechanism, an end head is arranged at the movable end of the impact mechanism, and a crushing mechanism is mounted on the end head; the crushing mechanism comprises a motor, a rotating disc installed at the output end of the motor, a drill bit arranged at the axis of the rotating disc and a power device driving the drill bit to move in the axial direction of the drill bit, cutter handles distributed in the circumferential direction are arranged around the drill bit, the two ends of each cutter handle are movably connected with the side wall of the drill bit and the rotating disc respectively, and multiple sets of cutter heads are arranged on one side of each cutter handle. According to the slag coke crushing device, an operator holds the grab handle by hand and only needs to align the rotating disc to a to-be-crushed position, slag coke blocks can be crushed through the tool bits on the rotating disc, crushing operation can be completed without long-time impact, and time and labor are saved; the device has two functions of impacting and cutting at the same time, can be flexibly adjusted according to requirements, and is wider in applicability.

Description

Technical Field

[0001] The present invention relates to a hydraulic crushing device and belongs to the technical field of slag crushing. Background Art

[0002] In thermal power plants, dry slag handling systems are mostly used for the bottom slag treatment of pulverized coal furnaces. By arranging a dry slag discharger between the slag well and the slag bin, the entire bottom slag treatment process of collection - pre - crushing - conveying and cooling - crushing - storage - regular discharging, etc., is realized. The proportion of blended coal combustion in thermal power plants is increasing day by day, and the composition of the coal entering the furnace is complex. Some coal types with low ash melting points are extremely likely to cause boiler coking. Large - area coking and falling in the boiler cause boiler coke plugging. After the coke blocks are cooled, their hardness has reached that of stones.

[0003] At present, a pneumatic pick is usually used to crush it. Since the large - sized slag has a too high hardness and a smooth outer surface after coking, the impact force of the pneumatic pick is insufficient and it is easy to slip. At the same time, it has high physical strength requirements for operators and can no longer meet the crushing requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a hydraulic crushing device to solve the problems proposed in the above - mentioned 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. A head is arranged at the movable end of the impact mechanism, 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 is arranged at the axis center of the rotating disk, and a power device for driving the drill bit to move along its axial direction. A plurality of tool holders are circumferentially distributed around the drill bit. Both ends of the tool holder are respectively movably connected to the side wall of the drill bit and the rotating disk. A plurality of tool tips are arranged on one side of the tool holder.

[0008] When the power device drives the drill bit to move to the outside of the rotating disk, the tool holder is inclined.

[0009] When the power device drives the drill bit to move to the inside of the rotating disk, a plurality of tool tips on the tool holder are arranged parallel to the rotating disk.

[0010] Preferably, grooves corresponding to the tool holders one - to - one are opened on the outside of the rotating disk.

[0011] Preferably, a first rotating shaft and a second rotating shaft are respectively arranged at both ends of the tool holder. The first rotating shaft rotates and slides in the corresponding groove.

[0012] Preferably, a second sliding groove is axially opened on the outer side wall of the drill bit. The second rotating shaft rotates and slides in the corresponding second sliding groove.

[0013] Preferably, a stepped groove is provided on the groove, and a support portion adapted to the stepped groove is provided on the side wall of the tool handle. When the support portion is placed in the stepped groove, the tool handle is restricted from being fixed in the groove.

[0014] Preferably, a rotating cylinder is coaxially arranged inside the rotating disk. An elastic member is arranged between the rotating cylinder and the tool handle. A heat conducting member, a thermal expansion and contraction member and a return spring are arranged inside the tool handle. Two ends of the heat conducting member are respectively connected to the thermal expansion and contraction member and the tool tip; The support portion is slidably connected to the tool handle to move to the outside of the tool handle or hide inside the tool handle, and the return spring is used to push the support portion to tend to move to the outside of the tool handle.

[0015] Preferably, the drill bit and the power device are placed in the inner cavity of the rotating cylinder, and one end of the support portion close to the rotating disk is inclined.

[0016] Preferably, a handle is arranged at the fixed end of the impact mechanism.

[0017] Preferably, it further includes a support frame. A slot adapted to the handle is arranged on the support frame. A support plate is arranged 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 body. A roller with a telescopic function is arranged on the box body. An accommodation space and a cover plate for covering the opening of the accommodation space are arranged on the box body; Or the support frame is a tripod.

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

[0020] In the present invention, an operator holds the handle by hand and only needs to align the rotating disk with the position to be broken, then the slag coke block can be broken by the tool tip on the rotating disk, and the breaking operation can be completed without long-term impact, saving time and effort;

[0021] The present invention has both impact and cutting functions, can be flexibly adjusted according to requirements, and has a wider applicability;

[0022] When the drill bit moves to the outside of the rotating disk, the tool handle acts as a reinforcing rib, and at this time the breaking device can be used for impact; When the drill bit moves and hides inside the rotating disk, the tool handle is parallel to the rotating disk, and at this time the tool tip on the tool handle can be used for cutting the slag. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the first support frame of the present invention;

[0025] Figure 3 It is a schematic structural diagram of the second support frame of the present invention;

[0026] Figure 4Schematic diagram of the first state structure of the drill bit and tool holder of the present invention;

[0027] Figure 5 Schematic diagram of the second state structure of the drill bit and tool holder of the present invention;

[0028] Figure 6 Schematic diagram of the tool holder and its mating components of the present invention;

[0029] Figure 7 Schematic diagram of the support part and its mating components of the present invention;

[0030] Figure 8 Schematic diagram of the drill bit structure of the present invention.

[0031] In the figure, the reference numerals are represented as:

[0032] 1. Impact mechanism; 3. End head; 31. Motor slot; 32. Reinforcing rib; 4. Crushing mechanism; 41. Motor; 42. Rotating disk; 43. Cutter head; 44. Groove; 45. Tool holder; 451. First rotating shaft; 452. Second rotating shaft; 46. Rotating cylinder; 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. Accommodating space; 73. Cover plate; 74. Support leg. Detailed implementation manners

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1:

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

[0036] It includes an impact mechanism 1, an end head 3 and a crushing mechanism 4;

[0037] The impact mechanism 1 is a prior art, and a hydraulic cylinder that can perform reciprocating motion by hydraulic drive can be used. The impact force of the hydraulic drive is stronger than that of the pneumatic pick driven by air.

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

[0039] The movable end of the impact mechanism 1 is fixedly provided with a head 3. Between the head 3 and the fixed end of the impact mechanism 1, multiple groups of reinforcing ribs 32 are provided to improve the connection strength. On the side of the head 3 facing away from the impact mechanism 1, a motor slot 31 is opened, and a motor 41 of the crushing mechanism 4 is installed in the motor slot 31;

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

[0041] The motor 41 is fixed in the motor slot 31 by screws or by welding, and is used to provide a rotating force for the rotating disk 42. The rotating disk 42 cuts the slag through the cutter head 43;

[0042] A power device and a drill bit 47 are installed in the inner cavity of the rotating cylinder 46. The power device can adopt a hydraulic telescopic cylinder. The drill bit 47 is installed at the output end of the power device. The drill bit 47 is driven by the power device to move axially along the axis of the rotating cylinder 46 in the inner cavity of the rotating cylinder 46. The drill bit 47 is coaxially arranged relative to the rotating disk 42 and the rotating cylinder 46.

[0043] At the left and right ends of the tool handle 45, a second rotating shaft 452 and a first rotating shaft 451 are respectively provided. On the side of the tool handle 45 close to the outer wall of the rotating disk 42, at least one group of cutter heads 43 is provided. The cutter heads 43 adopt alloy cutter heads.

[0044] On the outer side of the rotating disk 42 facing away from the rotating cylinder 46, multiple groups of grooves 44 are opened. The grooves 44 are adapted to the tool handle 45. The multiple groups of grooves 44 are evenly distributed circumferentially around the drill bit 47. A first sliding groove perpendicular to the axis of the drill bit 47 is opened on the inner side wall of the groove 44. A first slider is linearly slidably connected in the first sliding groove. The first rotating shaft 451 of the tool handle 45 is rotatably connected to the first slider;

[0045] A second sliding groove extending axially along the outer side wall of the drill bit 47 is opened. A second slider is linearly slidably connected in the second sliding groove. The second rotating shaft 452 of the tool handle 45 is rotatably connected to the second slider.

[0046] As Figure 4 shown, when the power device shortens to drive the drill bit 47 to extend into the inner cavity of the rotating cylinder 46, at this time, the upper surface of the tool handle 45 is flush with the outer wall of the rotating disk 42, the cutter head 43 on the upper surface of the tool 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 the outer wall of the rotating disk 42 or lower than the cutter head 43; at this time, the rotation of the rotating disk 42 cuts the slag through the cutter head 43 on its outer wall.

[0047] As Figure 5As shown, when the power device extends, it drives the drill bit 47 to move outside the rotary drum 46. At this time, the drill bit 47 protrudes relative to the outer wall of the rotary disk 42. The second rotating shaft 452 at the left end of the tool holder 45 is relatively located at the lower end of the second chute. The tool holder 45 is inclined relative to the drill bit 47, and multiple groups of tool holders 45 act as reinforcing ribs for 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 at the part of the groove 44 close to the drill bit 47. A support portion 48 is provided on the side wall of one end of the tool holder 45 close to the second rotating shaft 452, and the support portion 48 is adapted to the stepped groove.

[0049] When the power device shortens from the extended state, the second slider cooperating with the second rotating shaft 452 moves upward relative to the second chute until the second slider is limited relative to the second chute. The power device continues to shorten and pushes the tool holder 45 to move accordingly, so that the first slider cooperating with the first rotating shaft 451 of the tool holder 45 moves relative to the first chute. Until the power device shortens to the extreme limit, the support portion 48 of the tool holder 45 just moves to the stepped groove, and the tool holder 45 is fixed relative to the groove 44 through the cooperation of the support portion 48 and the stepped groove.

[0050] The device further includes a support frame 6, and a slot 61 adapted to the handle 5 is provided on the support frame 6. A support plate 62 is provided on the support frame 6. 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 through the vertically arranged 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 jointly bears the backward thrust generated by the impact mechanism 1 with the handle 5.

[0052] In one embodiment, the support frame 6 is a box body, and a roller 71 with a telescopic function is provided on the box body. A receiving space 72 and a cover plate 73 for covering the top opening of the receiving space 72 are provided on the box body, as Figure 2 shown. After the handle 5 is inserted into the slot 61, the operator only needs to align the rotary disk 42 with the position to be broken. The support frame 6 contacts the ground, and the operator can directly straddle the support frame 6 to provide a downward pressure, so as to make full use of the forward thrust of the impact mechanism 1. Open the cover plate 73, and the operation tools can be taken and placed. Close the cover plate 73, which can be used for the operator to straddle. When it is necessary to move the support frame 6, extend the roller 71 and contact the ground, and then the support frame 6 can be pushed to move, which is more convenient for handling.

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

[0054] Among them, the tripod includes three support legs 74 with fixed positions, which can provide relatively stable support while being able to adapt to harsh working environments, such as uneven ground or a large amount of gravel and foreign objects. Further, the support legs 74 are telescopic members, such as cylinders or hydraulic cylinders, etc. The telescopic members have a telescopic function and can freely control the length of each support leg 74, so as to be able to adapt to various working environments, such as on a slope surface, etc., and at the same time be able to keep the cylinder block 11 and the rotating disk 42 in a more stable posture.

[0055] Embodiment 2: It includes all the content of Embodiment 1, the difference is that as Figures 6 - 7 shown, an elastic member 49 is provided between the outer side walls of the tool holder 45 and the rotating cylinder 46, and the elastic member 49 can be a tension spring;

[0056] Two groups of support parts 48 can be provided and distributed on the opposite sides of the tool holder 45. The support parts 48 are linearly slidably connected to the tool holder 45 relatively, and the support parts 48 can move relatively to the outside of the tool holder 45 or retract into the tool holder 45; the moving direction of the support parts 48 is perpendicular to the axis of the rotating disk 42. On the side where the two groups of tool holders 45 are close to each other, there are extension parts 481 with an L-shaped structure, and a return spring 482 and a thermal expansion and contraction member 483 are provided between the two groups of extension parts 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 part 481 to extend out of the tool holder 45; the thermal expansion and contraction member 483 can be made of a thermosensitive material. One end of the support part 48 away from the extension part 481 is inclined towards the cutting head 43 side. The tool holder 45 is internally provided with a heat conduction layer, and the heat of the cutting head 43 is transmitted to the thermal expansion and contraction member 483 through the heat conduction layer.

[0057] Working principle:

[0058] When the cutting head 43 is overused and its temperature is too high, the temperature is conducted to the thermal expansion and contraction member 483 through the heat conduction layer. The thermal expansion and contraction member 483 expands and elongates when heated, pushing the two groups of extension parts 481 to move, so that the support part 48 extends into the tool holder 45;

[0059] At this time, the support part 48 of the tool holder 45 disengages from the step groove, and drives the tool holder 45 to continue to extend into the groove 44 under the action of the elastic force of the return spring 482. During this process, the second rotating shaft 452 at the left end of the tool holder 45 moves downward relatively in the second sliding groove, so as to realize that the cutting head 43 on the upper surface of the tool holder 45 is lower than the drill bit 47 or retracts into the groove 44 for hiding.

[0060] After the cutting head 43 cools naturally for a period of time, the thermal expansion and contraction member 483 shortens and drives the support part 48 to move to the outer side wall of the tool holder 45. The tool holder 45 can be manually pushed upward. During this process, the support part 48 cooperates with the return spring 482 through its inclined side to reset, so that the support part 48 resets and moves into the step groove, and the upper surface of the tool holder 45 is flush with the outer side wall of the rotating disk 42.

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

[0062] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A hydraulic crushing device, comprising an impact mechanism (1) driven by hydraulic pressure. A head (3) is provided at the movable end of the impact mechanism (1), and a crushing mechanism (4) is installed on the head (3). It is 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 plurality of tool holders (45) are circumferentially distributed around the drill bit (47). Both ends of the tool holder (45) are movably connected to the side wall of the drill bit (47) and the rotating disk (42) respectively. A plurality of tool bits (43) are provided on one side of the tool holder (45); When the power device drives the drill bit (47) to move to the outside of the rotating disk (42), the tool holder (45) is inclined; When the power device drives the drill bit (47) to move to the inside of the rotating disk (42), the plurality of tool bits (43) on the tool holder (45) are arranged parallel to the rotating disk (42).

2. The hydraulic crushing device according to claim 1, wherein: Grooves (44) adapted to the tool holders (45) one by one are provided on the outside of the rotating disk (42).

3. The hydraulic crushing device according to claim 2, characterized in that: First rotating shafts (451) and second rotating shafts (452) are respectively provided at both ends of the tool holder (45). The first rotating shaft (451) rotates and slides in the corresponding groove (44).

4. The hydraulic crushing device according to claim 3, characterized in that: A second chute is axially provided on the outer side wall of the drill bit (47). The second rotating shaft (452) rotates and slides in the corresponding second chute.

5. The hydraulic crushing device according to claim 4, characterized in that: A stepped groove is provided on the groove (44). A support portion (48) adapted to the stepped groove is provided on the side wall of the tool holder (45). When the support portion (48) is placed in the stepped groove, the tool holder (45) is restricted to be fixed in the groove (44).

6. The hydraulic crushing device according to claim 5, characterized in that: A rotating cylinder (46) is coaxially provided inside the rotating disk (42). An elastic member (49) is provided between the rotating cylinder (46) and the tool holder (45). A heat conducting member, a thermal expansion and contraction member (483) and a return spring (482) are provided inside the tool holder (45). Both ends of the heat conducting member are respectively connected to the thermal expansion and contraction member (483) and the tool bit (43); The support portion (48) is slidably connected to the tool holder (45) to move to the outside of the tool holder (45) or be hidden inside the tool holder (45). The return spring (482) is used to push the support portion (48) to tend to move to the outside of the tool holder (45).

7. The hydraulic crushing device according to claim 6, wherein: The drill bit (47) and the power device are placed inside the cavity of the rotating cylinder (46). One end of the support portion (48) close to the rotating disk (42) is inclined.

8. The hydraulic crushing device according to claim 1, characterized in that: A handle (5) is provided at the fixed end of the impact mechanism (1).

9. The hydraulic crushing device according to claim 8, characterized in that: It further includes a support frame (6). A slot (61) adapted to the handle (5) is provided on the support frame (6). A support plate (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 support plate (62).

10. The hydraulic crushing device according to claim 8, characterized in that: The support frame (6) is a box body. A roller (71) with a telescopic function is provided on the box body. A receiving space (72) and a cover plate (73) for covering the opening of the receiving space (72) are provided on the box body; or The support frame (6) is a tripod.

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