Reversible hammering type coal crusher hammerhead dismounting device

Abstract

The utility model discloses a reversible hammering type coal crusher hammerhead dismounting device, which relates to the field of equipment maintenance, and comprises a slide rail and a moving frame, the slide rail is horizontally and fixedly connected on the moving frame, a slide block is slidably connected in the slide rail, the slide block is movably connected with a cylinder through a guide assembly, and the cylinder is fixedly connected with the slide rail. The guide assembly can vertically guide the moving track of the cylinder; the top and the bottom of the cylinder are each provided with an opening, the two openings correspond to each other, and a jacking assembly used for pushing a hammer pin shaft is arranged in the cylinder. The hammer dismounting device has the beneficial effects that the current hammer can be dismounted by moving the cylinder downwards, putting the hammer into the cylinder through the opening and ejecting the pin shaft out of the hammer through the jacking assembly, and the cylinder can be moved to the position above another hammer needing to be dismounted through cooperation of the sliding rail, the sliding block and the guiding assembly so that continuous operation can be facilitated; therefore, the safety and the efficiency of dismounting the hammer head can be obviously improved, and meanwhile, the safety risk in traditional operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment maintenance, in particular to a reversible hammer-type coal crusher hammer head disassembly device. Background Art

[0002] Reversible hammer coal crushers are commonly used in circulating fluidized bed units in thermal power plants. Combining the advantages of both hammer crushers and impact crushers, they feature a rotor that can rotate forward and reverse, improving the utilization rate of the crusher's hammers. They can also crush materials with high moisture content, resulting in a high crushing ratio, high production capacity, and uniform crushing particle size. However, during maintenance, this type of coal crusher is difficult and time-consuming to remove. Large coal crushers, with up to 100 or more hammers, are particularly challenging to disassemble without specialized disassembly tools. Furthermore, the entire disassembly process involves high-intensity manual labor, posing significant safety risks. This difficulty and time-consuming process severely impacts power generation revenues for power generation companies during equipment maintenance.

[0003] Currently, during the maintenance of circulating fluidized bed units in thermal power plants, such as the regular maintenance of reversible hammer coal crushers, the removal of the hammer head of the coal crusher is difficult and time-consuming. The specific operation usually requires the coordinated actions of multiple staff members. First, the hammer head limit spring is removed. Then, one person holds a long-handled hammer with both hands and aims it at the hammer head pin, standing in front of the hammer head. Finally, the others take turns swinging the hammer with a sledgehammer, and the hammer acts on the hammer head pin until the pin is dislodged. In addition, the reversible hammer coal crusher has a complex operating environment, limited space, narrow passages, and many surrounding obstacles, which makes the disassembly and maintenance of the hammer head very difficult. The staff must be highly focused. The slightest negligence may damage the equipment or even cause an injury. Utility Model Content

[0004] The purpose of the present invention is to provide a reversible hammer head disassembly device for a coal crusher in order to solve the above problems, as described below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The utility model provides a reversible hammer-type coal crusher hammer head disassembly device, comprising a slide rail and a mobile frame, wherein the slide rail is horizontally fixedly connected to the mobile frame, a slider is slidably connected in the slide rail, and the slider is movably connected to a cylindrical barrel through a guide assembly, and the guide assembly can vertically guide the moving trajectory of the cylindrical barrel;

[0007] The top and bottom of the cylindrical tube are both provided with openings, and the two openings correspond to each other. A supporting assembly for pushing the hammer pin is provided in the cylindrical tube.

[0008] The above-mentioned reversible hammer-type coal crusher hammer head disassembly device is used to move the device so that the cylindrical barrel is located above the coal crusher hammer head, and the cylindrical barrel is moved downward. Then, the hammer head is placed into the cylindrical barrel through the opening, and the pin shaft at the connection between the hammer head and the hammer arm is aligned with the push rod of the oil cylinder. Then, the pin shaft is pushed out from the hammer head through the support assembly, and the current hammer head can be removed.

[0009] Move the cylinder upwards and then along the slide rail to move the cylinder above another hammer head that needs to be disassembled for continuous operation.

[0010] Preferably, the guide assembly includes a telescopic rod, both ends of which are fixedly connected to the slider and the cylindrical tube respectively; a tension spring is sleeved on the surface of the telescopic rod, and both ends of the tension spring are fixedly connected to the slider and the cylindrical tube respectively.

[0011] Preferably, a handle is fixedly connected to the cylindrical tube.

[0012] Preferably, a storage box for receiving a pin is fixedly connected to the end of the cylindrical tube.

[0013] Preferably, the supporting assembly includes an oil cylinder and a handheld hydraulic pump, the oil cylinder is fixedly installed in the cylindrical barrel, the handheld hydraulic pump is fixedly connected to the slide rail, and the oil port of the handheld hydraulic pump is connected to the oil cylinder through an oil pipe.

[0014] Preferably, the oil pipe is a hose.

[0015] Preferably, the movable frame includes two fixed frames, which are respectively fixedly connected to both sides of the slide rail.

[0016] Preferably, universal wheels are fixedly connected to both sides of the bottom of the fixing frame.

[0017] The beneficial effects are:

[0018] By moving the cylinder downward, placing the hammer head into the cylinder through the opening, and pushing the pin shaft out of the hammer head through the supporting assembly, the current hammer head can be removed. Through the cooperation of the slide rail, slider and guide assembly, the cylinder can be moved to the top of another hammer head that needs to be removed for continuous operation, which can significantly improve the safety and efficiency of removing the hammer head and reduce the safety risks in traditional operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a front view structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the slide rail of the utility model.

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Slide rail; 2. Mobile frame; 3. Fixed frame; 4. Universal wheel; 5. Slider; 6. Guide assembly; 7. Telescopic rod; 8. Tension spring; 9. Support assembly; 10. Handheld hydraulic pump; 11. Pressure rod; 12. Oil pipe; 13. Oil cylinder; 14. Push rod; 15. Opening; 16. Storage box; 17. Handle; 18. Cylinder. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 3 As shown, the utility model provides a reversible hammer-type coal crusher hammer head disassembly device, comprising a slide rail 1 and a mobile frame 2. The slide rail 1 is horizontally fixedly connected to the mobile frame 2. A slider 5 is slidably connected in the slide rail 1. The slider 5 is movably connected to a cylindrical barrel 18 through a guide assembly 6. The guide assembly 6 can vertically guide the moving trajectory of the cylindrical barrel 18.

[0027] Openings 15 are provided at the top and bottom of the cylindrical tube 18 , and the two openings 15 correspond to each other. A supporting assembly 9 for pushing the hammer pin is provided in the cylindrical tube 18 .

[0028] As an optional embodiment, the guide assembly 6 includes a telescopic rod 7, the two ends of the telescopic rod 7 are fixedly connected to the slider 5 and the cylindrical tube 18 respectively, a tension spring 8 is provided on the surface of the telescopic rod 7, and the two ends of the tension spring 8 are fixedly connected to the slider 5 and the cylindrical tube 18 respectively. When the hammer head needs to be removed, the cylindrical tube 18 is moved downward to make it close to the hammer head. After the disassembly is completed, the cylindrical tube 18 is released, and the tension spring 8 can move the cylindrical tube 18 upward. Moving the cylindrical tube 18 upward can avoid interference between the cylindrical tube 18 and the hammer head when the cylindrical tube 18 is moved along the slide rail 1.

[0029] A handle 17 is fixedly connected to the cylindrical tube 18 , and the handle 17 facilitates the movement of the cylindrical tube 18 .

[0030] The end of the cylindrical tube 18 is fixedly connected to a storage box 16 for receiving the pin. After the oil cylinder 13 pushes the pin out, the pin will directly fall into the storage box 16.

[0031] The supporting assembly 9 includes an oil cylinder 13 and a handheld hydraulic pump 10. The oil cylinder 13 is fixedly installed in the cylindrical tube 18. The handheld hydraulic pump 10 is fixedly connected to the slide rail 1. The oil port of the handheld hydraulic pump 10 is connected to the oil cylinder 13 through the oil pipe 12. By repeatedly pressing the pressure rod 11 of the handheld hydraulic pump 10, the oil cylinder 13 can be driven to extend. The handheld hydraulic pump 10 is a prior art and its working principle will not be described in detail.

[0032] The oil pipe 12 is a hose.

[0033] The movable frame 2 includes two fixed frames 3 , which are fixedly connected to both sides of the slide rail 1 .

[0034] Universal wheels 4 are fixedly connected to both sides of the bottom of the fixed frame 3. The universal wheels 4 have a self-locking function to prevent the device from moving when the hammer head is disassembled, thereby affecting the disassembly work.

[0035] With the above structure, move the device so that the cylinder 18 is located above the coal crusher hammer head, move the cylinder 18 downward, and then place the hammer head into the cylinder 18 through the opening 15, so that the pin at the connection between the hammer head and the hammer arm is aligned with the push rod 14 of the cylinder 13, and then use the support assembly 9 to push the pin out of the hammer head to remove the current hammer head;

[0036] The cylindrical barrel 18 is moved upward and then moved along the slide rail 1 so as to be moved above another hammer head that needs to be disassembled for continuous operation.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A reversible hammer-type coal crusher hammer head disassembly device, characterized by: The invention comprises a slide rail (1) and a mobile frame (2), wherein the slide rail (1) is horizontally fixedly connected to the mobile frame (2), a slider (5) is slidably connected in the slide rail (1), and the slider (5) is movably connected to a cylindrical barrel (18) through a guide assembly (6), and the guide assembly (6) can vertically guide the moving track of the cylindrical barrel (18); The top and bottom of the cylindrical tube (18) are both provided with openings (15), and the two openings (15) correspond to each other. A supporting assembly (9) for pushing the hammer pin is provided in the cylindrical tube (18).

2. The reversible hammer-type coal crusher hammer head disassembly device according to claim 1, characterized in that: The guide assembly (6) comprises a telescopic rod (7), the two ends of which are fixedly connected to the slider (5) and the cylindrical tube (18) respectively; a tension spring (8) is sleeved on the surface of the telescopic rod (7), and the two ends of the tension spring (8) are fixedly connected to the slider (5) and the cylindrical tube (18) respectively.

3. The reversible hammer-type coal crusher hammer head disassembly device according to claim 1, characterized in that: A handle (17) is fixedly connected to the cylindrical barrel (18).

4. The reversible hammer-type coal crusher hammer head disassembly device according to claim 1, characterized in that: The end of the cylindrical tube (18) is fixedly connected to a storage box (16) for receiving a pin shaft.

5. The reversible hammer-type coal crusher hammer head disassembly device according to claim 1, characterized in that: The supporting assembly (9) comprises an oil cylinder (13) and a hand-held hydraulic pump (10), wherein the oil cylinder (13) is fixedly installed in a cylindrical barrel (18), the hand-held hydraulic pump (10) is fixedly connected to the slide rail (1), and the oil port of the hand-held hydraulic pump (10) is connected to the oil cylinder (13) through an oil pipe (12).

6. The reversible hammer-type coal crusher hammer head disassembly device according to claim 5, characterized in that: The oil pipe (12) is a hose.

7. The reversible hammer-type coal crusher hammer head disassembly device according to claim 1, characterized in that: The movable frame (2) comprises two fixed frames (3), and the two fixed frames (3) are respectively fixedly connected to both sides of the slide rail (1).

8. The reversible hammer-type coal crusher hammer head disassembly device according to claim 7, characterized in that: Universal wheels (4) are fixedly connected to both sides of the bottom of the fixed frame (3).

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