Installation tool for hydraulic cylinder of coal mill

Abstract

The invention provides a coal mill hydraulic cylinder installation tool, and relates to the technical field of installation tools, the coal mill hydraulic cylinder installation tool comprises a lifting piece and a connecting piece, the lifting piece comprises round steel, two sets of steel rods and a first hanging ring, the two ends of the interior of the round steel are each provided with an installation cavity, and the two sets of steel rods are installed in the installation cavities in the two ends correspondingly; first screw caps are mounted at the outer ends of the two groups of steel rods; the two sets of connecting pieces are connected with the two bolt holes in the top of the hydraulic cylinder through the first threads of the lifting rods correspondingly, then the two sets of connecting pieces are arranged at the two ends of the round steel of the lifting piece in a sleeving mode through the second lifting rings correspondingly and limited through the first nuts, then the first lifting rings are connected with the chain block, and the hydraulic cylinder is lifted by means of the chain block; the safety risk of personnel in the carrying and lifting operation process is reduced, and when the cylinder body of the hydraulic cylinder is recovered, the position can be freely lifted and adjusted according to the base, so that the working efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of installation tools, and in particular to an installation tool for a hydraulic cylinder of a coal mill. Background Art

[0002] Coal mill is a mechanical device that breaks coal blocks and grinds them into coal powder. It is an important auxiliary equipment for pulverized coal furnaces. It converts coal blocks into coal powder by crushing, smashing and grinding for subsequent combustion or processing. Coal mills can be divided into low-speed coal mills (such as drum-type steel ball coal mills), medium-speed coal mills (such as flat disc mills, bowl mills, etc.) and high-speed coal mills (such as fan mills, hammer mills, etc.) according to different speeds and designs. Each type has its specific scope of application and advantages. The main components of coal mills include grinding discs, grinding rollers, feeding devices, slag discharge devices, air duct systems and transmission systems, etc. These parts cooperate with each other to complete the coal crushing and grinding process; An externally applied force roller coal mill is a type of coal mill, which provides grinding pressure through a hydraulic cylinder. After years of operation, since the coal mill area is a high-dust area, some fine coal powder particles will aggravate the wear of the hydraulic cylinder, thereby causing seal damage and oil leakage in the hydraulic cylinder. At this time, maintenance is required. The coal mill is generally installed on a specific frame and platform. Due to the narrow site location and the heavy hydraulic cylinder body, this work requires multiple people to lift, which poses certain safety risks. In addition, the position of the hydraulic cylinder is not easy to adjust during installation, and the working efficiency is low. Therefore, the present invention proposes a coal mill hydraulic cylinder installation tool to solve the problems existing in the prior art. Summary of the invention

[0003] In view of the above problems, the present invention proposes a coal mill hydraulic cylinder installation tool, which not only reduces the safety risks during personnel lifting operations, but also can be freely lifted and adjusted according to the base when restoring the hydraulic cylinder body, thereby greatly improving work efficiency.

[0004] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a coal mill hydraulic cylinder installation tool, including a lifting piece and a connecting piece, the lifting piece includes a round steel, a steel rod and a first lifting ring, both ends of the round steel are provided with installation cavities, the steel rod is provided with two groups, and the two groups of steel rods are respectively installed in the installation cavities at both ends, the outer ends of the two groups of steel rods are installed with first nuts, and the first lifting ring is set at the middle position of the top of the round steel; The connecting piece is provided with two groups, and the connecting piece includes a second lifting ring and a sleeve, the sleeve is provided with a lifting rod inside, and the lower end of the outer side of the lifting rod is provided with a first thread, the second lifting ring is provided at the upper end of the sleeve, and the second lifting ring is used to be sleeved on round steel or steel rod, the inner diameter of the second lifting ring is larger than the diameter of the round steel or steel rod, and the diameter of the second lifting ring is smaller than the diameter of the first nut.

[0005] A further improvement is that a second thread is provided at one end of the outer side of the steel rod, and the first nut is adapted to the second thread.

[0006] A further improvement is that both ends of the front and rear sides of the round steel are provided with a first side groove, and one end of the front and rear sides of the steel rod is provided with a first protrusion, and the first protrusion is movably matched with the first side groove.

[0007] A further improvement is that: the upper and lower ends inside the first side groove are both provided with rubber protrusions, and the rubber protrusions at the upper and lower ends are staggered and provided in multiple groups, and the rubber protrusions are used to limit the first protrusion.

[0008] A further improvement is that a gasket is provided between the second lifting ring and the sleeve, the second lifting ring and the gasket are fixed by welding, and the gasket and the sleeve are fixed by welding.

[0009] A further improvement is that a second side groove is provided below the front and rear sides of the sleeve, and a second protrusion is provided at the upper end of both sides of the suspension rod, and the second protrusion is movably matched with the second side groove.

[0010] A further improvement is that a threaded screw is rotatably provided inside the sleeve, and the threaded screw penetrates into the interior of the suspension rod and is threadably adapted.

[0011] Further improvements are: a top cavity is provided at the top of the inside of the sleeve, and a worm gear is rotatably provided inside the top cavity, the upper end of the threaded screw is connected to the worm gear, an axle seat is provided above one side of the sleeve, and a worm is rotatably connected between the axle seat and one end of the inside of the top cavity, the worm is adapted to the worm gear, a knob is rotatably provided at one end of the axle seat, and the knob is connected to the worm.

[0012] A further improvement is that a threaded hole is provided at the middle position inside the round steel, and the threaded hole is used for threadedly installing a bolt rod, and second nuts are threadedly installed at both ends of the bolt rod.

[0013] A further improvement is that the bolt rod is used to hang the additional connecting member, the inner diameter of the second lifting ring is larger than the diameter of the bolt rod, and the inner diameter of the second lifting ring is smaller than the diameter of the second nut.

[0014] The beneficial effects of the present invention are: 1. During installation, the hydraulic cylinder and the pull rod are disassembled, and the two front end cover bolts on the top of the hydraulic cylinder are removed. Thus, the two groups of connecting parts are respectively connected to the two bolt holes on the top of the hydraulic cylinder through the first thread of the lifting rod. Then, the two groups of connecting parts are respectively sleeved on the two ends of the round steel of the lifting part through the second lifting ring, and are limited by the first nut. Then, the first lifting ring is connected to the hand chain hoist. The hydraulic cylinder is lifted with the help of the hand chain hoist, which not only reduces the safety risks during the lifting operation, but also can adjust the position at will according to the base when restoring the cylinder body of the hydraulic cylinder, thereby greatly improving the work efficiency.

[0015] 2. The two groups of connecting parts of the present invention can be arbitrarily adjusted in position on the round steel and steel rod through the second lifting ring, which is convenient for adapting to the distance of the screw holes on the upper part of the hydraulic cylinder. By pulling the steel rod to move and extend in the round steel, the first protrusion is synchronously moved along the first side groove and limited by the rubber protrusion, so as to change the length of the lifting part, increase the moving and adjusting distance of the connecting part, and adapt to hydraulic cylinders of different calibers. By turning the knob to drive the worm to rotate, the worm wheel is driven to rotate, and the threaded screw is rotated, and the second protrusion is moved along the second side groove to stop the rotation, so as to adjust the distance of the lifting rod extending from the casing, which is convenient for installing the connecting parts and the hydraulic cylinder from different heights, and has a wide range of applications.

[0016] 3. The central threaded hole of the round steel of the present invention can be used to install a bolt rod, and the two ends of the bolt rod are limited by a second nut, so that two sets of connecting parts can be additionally installed, thereby performing four-point connection lifting of the hydraulic cylinder, which is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention; Figure 2 It is a schematic diagram of the lifting member of the present invention; Figure 3 It is a schematic diagram of a connecting piece of the present invention; Figure 4 It is a schematic diagram of the casing and the suspension rod installation structure of the present invention; Figure 5 It is a schematic diagram of the bolt rod of the present invention.

[0018] Among them: 1. round steel; 2. steel rod; 3. first lifting ring; 4. first nut; 5. second lifting ring; 6. sleeve; 7. lifting rod; 8. first thread; 9. second thread; 10. first side groove; 11. first protrusion; 12. rubber protrusion; 13. washer; 14. second side groove; 15. second protrusion; 16. threaded screw; 17. top cavity; 18. worm gear; 19. shaft seat; 20. worm; 21. knob; 22. threaded hole; 23. bolt rod; 24. second nut. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0020] Embodiment 1 according to Figure 1 , 2 As shown in , 3, 4, and 5, this embodiment proposes a coal mill hydraulic cylinder installation tool, including a lifting member and a connecting member, the lifting member includes a round steel 1, a steel rod 2, and a first lifting ring 3, both ends of the round steel 1 are provided with installation cavities, the steel rod 2 is provided with two groups, and the two groups of steel rods 2 are respectively installed in the installation cavities at both ends, the outer ends of the two groups of steel rods 2 are installed with first nuts 4, and the first lifting ring 3 is arranged at the middle position of the top of the round steel 1; The connecting piece is provided with two groups, and the connecting piece includes a second lifting ring 5 and a sleeve 6. The sleeve 6 is provided with a lifting rod 7 inside, and the lower end of the outer side of the lifting rod 7 is provided with a first thread 8. The second lifting ring 5 is provided at the upper end of the sleeve 6, and the second lifting ring 5 is used to be sleeved on the round steel 1 and the steel rod 2. The inner diameter of the second lifting ring 5 is larger than the diameter of the round steel 1 and the steel rod 2, and the diameter of the second lifting ring 5 is smaller than the diameter of the first nut 4. When in use, the hydraulic cylinder and the pull rod are disassembled, and the two front end cover bolts on the top of the hydraulic cylinder are removed. Thus, the two groups of connecting pieces are respectively connected to the two bolt holes on the top of the hydraulic cylinder through the first thread 8 of the lifting rod 7, and then the two groups of connecting pieces are respectively sleeved to the two ends of the round steel 1 of the lifting piece through the second lifting ring 5, and are limited by the first nut 4, and then the first lifting ring 3 is connected to the hand chain hoist, and the hydraulic cylinder is lifted by the hand chain hoist, which not only reduces the safety risk of personnel in the lifting operation, but also can be freely lifted and adjusted according to the base when the hydraulic cylinder body is restored.

[0021] One end of the outer side of the steel rod 2 is provided with a second thread 9, and the first nut 4 is adapted to the second thread 9. To facilitate installation or removal of the second nut 4, the two sets of connecting parts are respectively sleeved on both ends of the round steel 1 of the lifting part through the second lifting ring 5, and are limited by the first nut 4 to prevent falling.

[0022] Both ends of the front and rear sides of the round steel 1 are provided with a first side groove 10, and one end of the front and rear sides of the steel rod 2 is provided with a first protrusion 11, and the first protrusion 11 is movably adapted to the first side groove 10. The upper and lower ends of the first side groove 10 are provided with rubber protrusions 12, and the rubber protrusions 12 at the upper and lower ends are staggered and provided with multiple groups, and the rubber protrusions 12 are used to limit the first protrusions 11. When in use, the two groups of connecting parts can be arbitrarily adjusted to the position on the round steel 1 and the steel rod 2 through the second lifting ring 5, which is convenient for adapting to the distance of the upper screw hole of the hydraulic cylinder. By pulling the steel rod 2 to move and extend in the round steel 1, the first protrusion 11 is synchronously moved along the first side groove 10 and limited by the rubber protrusion 12, the length of the lifting part can be changed, the distance of the connecting part movement and adjustment can be increased, and hydraulic cylinders of different calibers can be adapted.

[0023] A washer 13 is provided between the second lifting ring 5 and the sleeve 6, and the second lifting ring 5 and the washer 13 are welded and fixed, and the washer 13 and the sleeve 6 are welded and fixed. The washer 13 increases the connection area and connection strength of the second lifting ring 5 and the sleeve 6, making it more firm and not easy to break.

[0024] A second side groove 14 is provided below the front and rear sides of the sleeve 6, and a second protrusion 15 is provided at the upper end of both sides of the suspension rod 7, and the second protrusion 15 is movably adapted to the second side groove 14. A threaded screw 16 is rotatably provided inside the sleeve 6, and the threaded screw 16 penetrates into the interior of the suspension rod 7 and is threadedly adapted. A top cavity 17 is provided at the top of the interior of the sleeve 6, and a worm gear 18 is rotatably provided inside the top cavity 17, and the upper end of the threaded screw 16 is connected to the worm gear 18. A shaft seat 19 is provided above one side of the sleeve 6, and a worm 20 is rotatably connected between the shaft seat 19 and one end inside the top cavity 17, and the worm 20 is adapted to the worm gear 18. A knob 21 is rotatably provided at one end of the shaft seat 19, and the knob 21 is connected to the worm 20. When in use, turning the knob 21 drives the worm 20 to rotate, driving the worm wheel 18 to rotate, causing the threaded screw 16 to rotate, and cooperating with the second protrusion 15 to move along the second side groove 14 to stop rotation. The distance that the boom 7 extends from the sleeve 6 can be adjusted, which is convenient for installing connecting parts and hydraulic cylinders from different heights, and is also convenient for cooperating with a hand winch to change the lifting height, and has a wide range of applications.

[0025] Embodiment 2 according to Figure 1 , 2 As shown in , 3, 4, and 5, this embodiment proposes a coal mill hydraulic cylinder installation tool, including a lifting member and a connecting member, the lifting member includes a round steel 1, a steel rod 2, and a first lifting ring 3, both ends of the round steel 1 are provided with installation cavities, the steel rod 2 is provided with two groups, and the two groups of steel rods 2 are respectively installed in the installation cavities at both ends, the outer ends of the two groups of steel rods 2 are installed with first nuts 4, and the first lifting ring 3 is arranged at the middle position of the top of the round steel 1; The connecting piece is provided with two groups, and the connecting piece includes a second lifting ring 5 and a sleeve 6. The sleeve 6 is provided with a lifting rod 7 inside, and the lower end of the outer side of the lifting rod 7 is provided with a first thread 8. The second lifting ring 5 is provided at the upper end of the sleeve 6, and the second lifting ring 5 is used to be sleeved on the round steel 1 and the steel rod 2. The inner diameter of the second lifting ring 5 is larger than the diameter of the round steel 1 and the steel rod 2, and the diameter of the second lifting ring 5 is smaller than the diameter of the first nut 4. When in use, the hydraulic cylinder and the pull rod are disassembled, and the two front end cover bolts on the top of the hydraulic cylinder are removed. Thus, the two groups of connecting pieces are respectively connected to the two bolt holes on the top of the hydraulic cylinder through the first thread 8 of the lifting rod 7, and then the two groups of connecting pieces are respectively sleeved to the two ends of the round steel 1 of the lifting piece through the second lifting ring 5, and are limited by the first nut 4, and then the first lifting ring 3 is connected to the hand chain hoist, and the hydraulic cylinder is lifted by the hand chain hoist, which not only reduces the safety risk of personnel in the lifting operation, but also can be freely lifted and adjusted according to the base when the hydraulic cylinder body is restored.

[0026] One end of the outer side of the steel rod 2 is provided with a second thread 9, and the first nut 4 is adapted to the second thread 9. To facilitate installation or removal of the second nut 4, the two sets of connecting parts are respectively sleeved on both ends of the round steel 1 of the lifting part through the second lifting ring 5, and are limited by the first nut 4 to prevent falling.

[0027] A threaded hole 22 is provided at the middle position inside the round steel 1, and the threaded hole 22 is used to threadably install a bolt rod 23, and second nuts 24 are threadably installed at both ends of the bolt rod 23. The bolt rod 23 is used to hang additional connecting pieces, and the inner diameter of the second lifting ring 5 is larger than the diameter of the bolt rod 23, and the inner diameter of the second lifting ring 5 is smaller than the diameter of the second nut 24. When in use, the bolt rod 23 can be installed in the central threaded hole 22 of the round steel, and two sets of connecting pieces can be additionally installed at the two ends of the bolt rod 23, and the two ends of the bolt rod 23 are limited by the second nuts 24 to prevent the connecting pieces from falling off, so as to cooperate with the connecting pieces at both ends of the round steel 1 to carry out four-point connection lifting of the hydraulic cylinder, which is more stable.

[0028] When installing the coal mill hydraulic cylinder installation tool, the hydraulic cylinder and the pull rod are disassembled, and the two front end cover bolts on the top of the hydraulic cylinder are removed. Then, the two sets of connecting parts are connected to the two bolt holes on the top of the hydraulic cylinder through the first thread 8 of the lifting rod 7, and then the two sets of connecting parts are respectively mounted on the two ends of the round steel 1 of the lifting part through the second lifting ring 5, and are limited by the first nut 4. Then, the first lifting ring 3 is connected to the hand winch, and the hydraulic cylinder is lifted by the hand winch, which not only reduces the safety risks during the lifting operation, but also can adjust the position at will according to the base when restoring the hydraulic cylinder body, thereby greatly improving the work efficiency. The two sets of connecting parts can be adjusted to any position on the round steel 1 and the steel rod 2 by the second lifting ring 5, so as to adapt to the distance of the upper screw hole of the hydraulic cylinder. By pulling the steel rod 2 to move and extend in the round steel 1, the first protrusion 11 is synchronously moved along the first side groove 10 and limited by the rubber protrusion 12, so as to change the length of the lifting part, increase the distance of the moving adjustment of the connecting part, and adapt to hydraulic cylinders of different calibers. By turning the knob 21 to drive the worm 20 to rotate, the worm wheel 18 is driven to rotate, so that the threaded screw 16 rotates, and the second protrusion 15 is moved along the second side groove 14 to stop the rotation, so as to adjust the distance of the suspension rod 7 extending from the sleeve 6, so as to facilitate the installation of the connecting parts and the hydraulic cylinder from different height positions, and has a wide range of applications. At the same time, the central threaded hole 22 of the round steel can be installed with the bolt rod 23, and the two ends of the bolt rod 23 are limited by the second nut 24, so that two sets of connecting parts can be installed additionally, so as to carry out four-point connection lifting of the hydraulic cylinder, which is more stable.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A coal mill hydraulic cylinder installation tool, comprising a lifting part and a connecting part, characterized in that: The lifting component comprises a round steel (1), a steel rod (2) and a first lifting ring (3); both ends of the round steel (1) are provided with mounting cavities; two groups of the steel rods (2) are provided, and the two groups of the steel rods (2) are respectively installed in the mounting cavities at both ends; the outer ends of the two groups of the steel rods (2) are both installed with first nuts (4); and the first lifting ring (3) is arranged at the middle position of the top of the round steel (1); The connecting member is provided with two groups, and the connecting member comprises a second lifting ring (5) and a sleeve (6); a lifting rod (7) is movably provided inside the sleeve (6), and a first thread (8) is provided at the lower end of the outer side of the lifting rod (7); the second lifting ring (5) is provided at the upper end of the sleeve (6), and the second lifting ring (5) is used to be sleeved on the round steel (1) and the steel rod (2); the inner diameter of the second lifting ring (5) is larger than the diameter of the round steel (1) and the steel rod (2), and the diameter of the second lifting ring (5) is smaller than the diameter of the first nut (4).

2. A coal mill hydraulic cylinder installation tool according to claim 1, characterized in that: A second thread (9) is provided at one end of the outer side of the steel rod (2), and the first nut (4) is adapted to fit the second thread (9).

3. A coal mill hydraulic cylinder installation tool according to claim 1, characterized in that: Both ends of the front and rear sides of the round steel (1) are provided with a first side groove (10), and one end of the front and rear sides of the steel rod (2) is provided with a first protrusion (11), and the first protrusion (11) is movably matched with the first side groove (10).

4. A coal mill hydraulic cylinder installation tool according to claim 3, characterized in that: The upper and lower ends of the first side groove (10) are both provided with rubber protrusions (12), and the rubber protrusions (12) at the upper and lower ends are arranged in multiple groups in an alternating manner. The rubber protrusions (12) are used to limit the position of the first convex block (11).

5. The coal mill hydraulic cylinder installation tool according to claim 1, characterized in that: A washer (13) is provided between the second lifting ring (5) and the sleeve (6); the second lifting ring (5) and the washer (13) are fixed by welding; and the washer (13) and the sleeve (6) are fixed by welding.

6. A coal mill hydraulic cylinder installation tool according to claim 1, characterized in that: Second side grooves (14) are provided below the front and rear sides of the sleeve (6), and second protrusions (15) are provided at the upper ends of both sides of the suspension rod (7), and the second protrusions (15) are movably matched with the second side grooves (14).

7. A coal mill hydraulic cylinder installation tool according to claim 6, characterized in that: A threaded screw (16) is rotatably arranged inside the sleeve (6), and the threaded screw (16) penetrates into the interior of the suspension rod (7) and is threadably adapted.

8. A coal mill hydraulic cylinder installation tool according to claim 7, characterized in that: A top cavity (17) is provided at the top of the sleeve (6), and a worm gear (18) is rotatably provided inside the top cavity (17); the upper end of the threaded screw (16) is connected to the worm gear (18); an axle seat (19) is provided above one side of the sleeve (6), and a worm (20) is rotatably connected between the axle seat (19) and one end inside the top cavity (17); the worm (20) is matched with the worm gear (18); a knob (21) is rotatably provided at one end of the axle seat (19), and the knob (21) is connected to the worm (20).

9. A coal mill hydraulic cylinder installation tool according to any one of claims 1 to 8, characterized in that: A threaded hole (22) is provided at a middle position inside the round steel (1), and the threaded hole (22) is used to threadably mount a bolt rod (23), and second nuts (24) are threadably mounted at both ends of the bolt rod (23).

10. A coal mill hydraulic cylinder installation tool according to claim 9, characterized in that: The bolt rod (23) is used to hang an additional connecting piece, the inner diameter of the second lifting ring (5) is larger than the diameter of the bolt rod (23), and the inner diameter of the second lifting ring (5) is smaller than the diameter of the second nut (24).

Images