Automatic oiling device of tower crane

Abstract

The invention discloses an automatic oiling device of a tower crane, and relates to the technical field of crane maintenance, the automatic oiling device comprises an oil cup, an oiling piston, a pushing oiling mechanism, an oil guide pipe, a regulating valve and an oil guide brush structure, the oiling piston is arranged in the oil cup, and the lower end of the pushing oiling mechanism extends out of a sliding hole and then is connected with the top of the oiling piston; an oil guide pipe is connected to one side of the lower end of the oiling main pipe, a steel wire rope cleaning mechanism is arranged on the support, an oil guide brush structure is arranged at one end of the oil guide pipe, and a hose is arranged on the oil guide pipe and connected with the oil guide brush structure; according to the automatic oiling device for the tower crane, the automatic oiling device for the tower crane is composed of the oil cup, the oiling piston, the pushing oiling mechanism, the oil guide pipe, the adjusting valve and the oil guide brush structure, so that lubricating oil can be quantitatively and automatically injected to a steel wire rope of the tower crane; the oiling operation is not influenced by weather environment, and the steel wire rope can be uniformly oiled in a surrounding manner.

Description

Technical Field

[0001] The invention relates to the technical field of crane maintenance, in particular to an automatic oiling device for a tower crane. Background Art

[0002] In engineering construction, tower cranes are lifting equipment that we often use. They are deeply loved by engineers and others because of their low cost, high work efficiency, wide range of use, and automatic lifting function. Tower cranes are like cars. They need regular maintenance during use. Traditional tower cranes need maintenance once a month, and the key step of maintenance is to lubricate and oil the wire rope of the tower crane. Since tower cranes are used frequently and erected in the natural environment, the lubricating oil on the wire rope is easily consumed. Lubricating oil can improve work efficiency, reduce friction, and ensure that the wire rope runs according to the guide groove. It plays a very important role. Once the wire rope is short of oil, it will increase the friction between the wire rope and the drum, rope groove, guide wheel, and rope limiter, which will reduce the service life of the wire rope over time, and even cause the wire rope to fall off the rope groove and twist and deform, which will increase the difficulty of later maintenance and replacement.

[0003] Traditionally, wire rope oiling is done manually. Specifically, maintenance personnel carry a bucket of lubricating oil onto the tower crane, and then use gloves or a flat shovel to spread butter on the wire rope little by little. In order to ensure that the entire section of the wire rope is coated, the wire rope needs to be oiled while it is rotating, which poses a safety hazard to maintenance personnel. Specifically, there are the following disadvantages: 1. The oiling efficiency is low, and the butter can only be applied to the wire rope little by little by hand or flat shovel; 2. The oiling cost is high, and maintenance personnel need to climb to the top of the tower crane to carry out the operation; 3. There are safety risks. When oiling, the wire rope needs to be oiled by hand while rotating, and the hands of the maintenance personnel will be injured if they are not careful; 4. The utilization rate of butter material is low and the effect is not good. Since the wire rope is oiled by manual application, the butter cannot be evenly attached to the wire rope, and the oil at the bottom of the butter barrel cannot be 100% utilized; 5. The oiling work is easily affected by the weather. When it rains in winter, the maintenance personnel are inconvenient to go up and down, and cannot carry out the maintenance work on schedule, but the project cannot be stopped; 6. The oiling quality is not easy to guarantee, which brings quality and safety hazards to the service life of the wire rope in the later period. Therefore, the present invention proposes an automatic oiling device for tower cranes to solve the shortcomings of the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide an automatic oiling device for a tower crane. By arranging the automatic oiling device for a tower crane composed of an oil cup, an oiling piston, an oiling mechanism, an oil guide pipe, a regulating valve and an oil guide brush structure, it is possible to automatically and quantitatively inject lubricating oil into the wire rope of the tower crane. The automatic oiling device for the tower crane is installed on the tower crane, and the oiling operation is not affected by the weather environment. The main body of the oil guide brush structure of the present invention is composed of two semicircular oil guide plates, which can realize uniform oiling of the wire rope in a surrounding manner.

[0005] To achieve the above object, the present invention provides the following technical solutions: The cam is provided with an oil filling piston, an oil pushing mechanism, an oil guide pipe, a regulating valve and an oil guide brush structure, wherein an oil filling piston is arranged inside the oil cup, an end cover is detachably mounted on the upper end of the oil cup, a circular plate is arranged inside the lower end of the end cover, a sliding hole is arranged on the circular plate, an oil pushing mechanism is arranged inside the end cover above the circular plate, the lower end of the oil pushing mechanism is extended out of the sliding hole and is connected to the top of the oil filling piston, the bottom of the oil cup is a conical structure and is connected to an oil filling main pipe, one side of the lower end of the oil filling main pipe is connected to an oil guide pipe, a heating assembly is arranged on the oil filling main pipe, a bracket is arranged on the oil guide pipe, a wire rope cleaning mechanism is arranged on the bracket, a regulating valve is arranged on the oil guide pipe, an oil guide brush structure is arranged at one end of the oil guide pipe, and a hose is arranged on the oil guide pipe, the hose is connected to the oil guide brush structure, and the oil guide brush structure is adapted to the position of the wire rope cleaning mechanism.

[0006] A further improvement is that the oil guide brush structure includes a fixed plate, a rotating shaft and a semicircular oil guide plate, a fixed plate is provided in the middle of one end of the oil guide tube, and semicircular oil guide plates are provided on the top and bottom of the fixed plate through rotation of the rotating shaft, the interior of the semicircular oil guide plate is a cavity structure, and an oil outlet hole is provided on the inner side of the semicircular oil guide plate, and a plurality of oil outlet holes are provided.

[0007] A further improvement is that: two hoses are provided, the two hoses are symmetrically arranged at one end of the oil guide pipe close to one side of the fixed plate, and one end of the two hoses is respectively connected to the cavity structure inside the semicircular oil guide plate.

[0008] A further improvement is that a connecting spring is provided on the side wall of the semicircular oil guide plate, one end of the connecting spring is connected to the outer wall of the oil guide pipe, and one end of the two semicircular oil guide plates away from the rotating shaft are respectively provided with a first magnetic plate and a second magnetic plate. After the two semicircular oil guide plates are closed, one end is magnetically fixed by the first magnetic plate and the second magnetic plate.

[0009] Further improvements are: the oiling mechanism includes a screw, an internally threaded sleeve, a first drive motor and an electromagnetic relay, a screw is rotatably provided on the upper part of the end cover, an internally threaded sleeve is slidably provided in the sliding hole, the internally threaded sleeve is threadedly connected to the screw, and the lower end of the internally threaded sleeve is connected to the top of the oiling piston, a first drive motor and an electromagnetic relay are provided inside the end cover, the screw is driven by the first drive motor, and the electromagnetic relay is connected to the first drive motor.

[0010] A further improvement is that the heating assembly comprises a heating jacket and a heating wire, the outer wall of the oil supply main pipe is provided with a heating jacket, and the interior of the heating jacket is provided with a heating wire.

[0011] Further improvements are: the wire rope cleaning mechanism includes a connecting rod, a mounting ring, a cleaning ring and a rotary drive assembly, a connecting rod is provided on one side of the bracket, a mounting ring is provided at one end of the connecting rod, a cleaning ring is rotatably provided inside the mounting ring, a cleaning brush is provided on the inner side wall of the cleaning ring, a rotary drive assembly is provided on the top of the mounting ring, and the rotary drive assembly drives the cleaning ring to rotate.

[0012] Further improvement is that: the rotary drive assembly includes a gear ring, a gear, a drive shaft and a second drive motor, a drive shaft is rotatably provided on the top of the mounting ring, the drive shaft is driven by the second drive motor, a gear is installed on the drive shaft, one end of the cleaning ring extends out of the interior of the mounting ring and a gear ring is provided on the outer wall, and the gear ring is meshed with the gear.

[0013] A further improvement is that: an external thread is provided on the outer wall of the upper end of the oil cup, an internal thread is provided on the inner wall of the end cover below the circular plate, and the end cover is connected to the external thread on the outer wall of the upper end of the oil cup through the internal thread.

[0014] A further improvement is that a first mounting plate is provided on the outer wall of the oil cup, a first mounting bolt is provided on the first mounting plate, a second mounting plate is symmetrically provided on one side of the bottom of the bracket, and a second mounting bolt is provided on the second mounting plate.

[0015] The beneficial effects of the present invention are as follows: the present invention can realize the quantitative and automatic injection of lubricating oil to the wire rope of the tower crane by arranging an automatic oiling device for a tower crane composed of an oil cup, an oiling piston, an oiling mechanism, an oil guide pipe, a regulating valve and an oil guide brush structure; the automatic oiling device for a tower crane is installed on the tower crane, and the oiling operation is not affected by the weather environment; the main body of the oil guide brush structure of the present invention is composed of two semicircular oil guide plates, which can realize the uniform oiling of the wire rope in a surrounding manner; and the present invention can avoid the problem of oiling blockage caused by the solidification of lubricating oil in winter by arranging a heating component, and can realize the maintenance of stable oiling operation; by arranging a wire rope cleaning mechanism, the wire rope can be cleaned first and then oiled and lubricated by using the oil guide brush structure, so as to avoid the influence of impurities on the surface of the wire rope on the uniformity of oiling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the overall structure of the oiling mechanism of the present invention; Figure 3 This is a schematic diagram of the installation structure of the oiling mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the oil guide brush of the present invention; Figure 5 It is a structural schematic diagram of the wire rope cleaning mechanism of the present invention.

[0017] Wherein: 1. oil cup; 2. oiling piston; 3. oiling mechanism; 301. screw; 302. internal threaded sleeve; 303. first drive motor; 4. oil guide pipe; 5. regulating valve; 6. oil guide brush structure; 601. fixed plate; 602. rotating shaft; 603. semicircular oil guide plate; 604. oil outlet hole; 605. connecting spring; 606. first magnetic plate; 607. second magnetic plate; 7. end cover; 8. round plate; 9. sliding hole; 10. oiling main pipe; 11. wire rope cleaning mechanism; 1101. connecting rod; 1102. mounting ring; 1103. cleaning ring; 1104. gear ring; 1105. gear; 1106. second drive motor; 12. hose; 13. heating jacket; 14. first mounting plate; 15. first mounting bolt; 16. bracket; 17. second mounting plate; 18. second mounting bolt. DETAILED DESCRIPTION

[0018] 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.

[0019] according to Figure 1-5As shown, this embodiment proposes an automatic oiling device for a tower crane, comprising an oil cup 1, an oiling piston 2, an oiling mechanism 3, an oil guide pipe 4, a regulating valve 5 and an oil guide brush structure 6, wherein the oiling piston 2 is arranged inside the oil cup 1, and an end cover 7 is detachably mounted on the upper end of the oil cup 1, a circular plate 8 is arranged at the lower part of the end cover 7, and a sliding hole 9 is arranged on the circular plate 8, and an oiling mechanism 3 is arranged inside the end cover 7 above the circular plate 8, and the lower end of the oiling mechanism 3 extends out of the sliding hole 9 and is connected to the top of the oiling piston 2, and the The bottom of the oil cup 1 is a conical structure and is connected to an oiling main pipe 10, one side of the lower end of the upper oiling main pipe 10 is connected to an oil guide pipe 4, a heating component is provided on the upper oiling main pipe 10, a bracket 16 is provided on the oil guide pipe 4, a wire rope cleaning mechanism 11 is provided on the bracket 16, a regulating valve 5 is provided on the oil guide pipe 4, an oil guide brush structure 6 is provided at one end of the oil guide pipe 4, and a hose 12 is provided on the oil guide pipe 4, the hose 12 is connected to the oil guide brush structure 6, and the oil guide brush structure 6 is adapted to the position of the wire rope cleaning mechanism 11.

[0020] When the automatic oiling device for a tower crane of the present invention is used, the automatic oiling device for a tower crane is installed on the tower crane so that the steel wire rope of the tower crane passes through the oil guide brush structure 6 and the steel wire rope cleaning mechanism 11. When the automatic oiling is performed, the oiling piston 2 is driven downward by pushing the oiling mechanism 3 to push the butter in the oil cup 1 downward, so that the butter is squeezed into the oiling main pipe 10 from the conical structure at the bottom of the oil cup 1, and then enters the oil guide pipe 4 along the oiling main pipe 10. During the process, the oil output in the oil guide pipe 4 can be adjusted by the regulating valve 5. The butter in the oil guide pipe 4 finally enters the oil guide brush structure 6 through the hose 12 to achieve comprehensive oiling and lubrication of the steel wire rope. Before the steel wire rope is oiled, it first passes through the steel wire rope cleaning mechanism 11, and then enters the oil guide brush structure 6 for oiling after the surface impurities are cleaned by the steel wire rope cleaning mechanism 11.

[0021] The oil guide brush structure 6 includes a fixed plate 601, a rotating shaft 602 and a semicircular oil guide plate 603. The fixed plate 601 is provided in the middle of one end of the oil guide pipe 4. The top and bottom of the fixed plate 601 are both provided with semicircular oil guide plates 603 that rotate through the rotating shaft 602. The interior of the semicircular oil guide plate 603 is a cavity structure, and the inner side of the semicircular oil guide plate 603 is provided with an oil outlet hole 604, and there are multiple oil outlet holes 604. Two hoses 12 are provided, and the two hoses 12 are symmetrically arranged at one end of the oil guide pipe 4 close to the fixed plate 601, and one end of the two hoses 12 is respectively connected to the cavity structure inside the semicircular oil guide plate 603. A connecting spring 605 is provided on the side wall of the semicircular oil guide plate 603, one end of the connecting spring 605 is connected to the outer wall of the oil guide pipe 4, and one end of the two semicircular oil guide plates 603 away from the rotating shaft 602 is respectively provided with a first magnetic plate 606 and a second magnetic plate 607. After the two semicircular oil guide plates 603 are closed, one end is magnetically fixed by the first magnetic plate 606 and the second magnetic plate 607. The present invention arranges the main body of the oil guide brush structure 6 to be composed of two semicircular oil guide plates 603, so that the steel wire rope can freely enter the interior of the oil guide brush structure 6. The two semicircular oil guide plates 603 can be turned at an angle through the rotating shaft 602. When one end of the two semicircular oil guide plates 603 is opened, the steel wire rope can freely enter and exit. When one end of the two semicircular oil guide plates 603 passes through the first magnetic plate 606 and the second magnetic plate 607, the steel wire rope can be enclosed between the two semicircular oil guide plates 603. During the process, the setting of the connecting spring 605 can facilitate the state reset of the semicircular oil guide plates 603. The oiling mechanism 3 includes a screw 301, an internally threaded sleeve 302, a first drive motor 303 and an electromagnetic relay. The screw 301 is rotatably arranged on the top of the end cover 7. The internally threaded sleeve 302 is slidably arranged in the sliding hole 9. The internally threaded sleeve 302 is threadedly connected to the screw 301, and the lower end of the internally threaded sleeve 302 is connected to the top of the oiling piston 2. The end cover 7 is provided with a first drive motor 303 and an electromagnetic relay. The screw 301 is driven by the first drive motor 303, and the electromagnetic relay is connected to the first drive motor 303. When the oiling mechanism 3 controls the oiling piston 2 to move to push the butter, the first drive motor 303 is started to drive the screw 301 to rotate. When the screw 301 rotates, the internally threaded sleeve 302 slidably connected in the sliding hole 9 can be driven to rise and fall, thereby driving the oiling piston 2 to move.

[0022] The heating assembly includes a heating jacket 13 and a heating wire. The heating jacket 13 is provided on the outer wall of the oiling main pipe 10, and a heating wire is provided inside the heating jacket 13. In order to prevent the temperature from affecting the injection effect of the butter in winter, the oiling main pipe 10 can be properly heated by the heating wire in the heating jacket 13, so that the butter can be smoothly injected into the oil guide pipe 4 from the oiling main pipe 10.

[0023] The wire rope cleaning mechanism 11 includes a connecting rod 1101, a mounting ring 1102, a cleaning ring 1103 and a rotary drive assembly. A connecting rod 1101 is provided on one side of the bracket 16, and a mounting ring 1102 is provided on one end of the connecting rod 1101. A cleaning ring 1103 is rotatably provided inside the mounting ring 1102, and a cleaning brush is provided on the inner side wall of the cleaning ring 1103. A rotary drive assembly is provided on the top of the mounting ring 1102, and the rotary drive assembly drives the cleaning ring 1103 to rotate. The rotary drive assembly includes a gear ring 1104, a gear 1105, a drive shaft and a second drive motor 1106. A drive shaft is rotatably provided on the top of the mounting ring 1102, and the drive shaft is driven by the second drive motor 1106. A gear 1105 is installed on the drive shaft. One end of the cleaning ring 1103 extends out of the mounting ring 1102 and a gear ring 1104 is provided on the outer wall, and the gear ring 1104 is meshed with the gear 1105. After the steel wire rope is inserted into the cleaning ring 1103, the second drive motor 1106 of the rotary drive assembly is started to control the drive shaft to rotate, and then the gear 1105 on the drive shaft drives the cleaning ring 1103 equipped with the gear ring 1104 to rotate in the mounting ring 1102, so as to clean and remove impurities from the surface of the steel wire rope inside the cleaning ring 1103 in a rotary form. The cleaning ring 1103 of the present invention is on the same straight line as the center of the semicircular oil guide plate 603.

[0024] The outer wall of the upper end of the oil cup 1 is provided with an external thread, and the inner wall of the end cover 7 below the circular plate 8 is provided with an internal thread, and the end cover 7 is connected to the external thread on the outer wall of the upper end of the oil cup 1 through the internal thread. This arrangement allows the end cover 7 to be removed to fill the oil cup 1 with butter.

[0025] A first mounting plate 14 is provided on the outer wall of the oil cup 1, and a first mounting bolt 15 is provided on the first mounting plate 14. A second mounting plate 17 is symmetrically provided on one side of the bottom of the bracket 16, and a second mounting bolt 18 is provided on the second mounting plate 17. The automatic oiling device for a tower crane of the present invention is fixed to the tower crane by the first mounting bolt 15 on the first mounting plate 14 and the second mounting bolt 18 on the second mounting plate 17.

[0026] The present invention can realize the automatic quantitative injection of lubricating oil to the wire rope of the tower crane by setting an automatic oiling device for a tower crane composed of an oil cup 1, an oiling piston 2, an oiling mechanism 3, an oil guide pipe 4, a regulating valve 5 and an oil guide brush structure 6. The automatic oiling device for a tower crane is installed on the tower crane, and the oiling operation is not affected by the weather environment. The main body of the oil guide brush structure 6 of the present invention is composed of two semicircular oil guide plates 603, which can realize the uniform oiling of the wire rope in a surrounding manner. In addition, the present invention can avoid the problem of oiling blockage caused by the solidification of lubricating oil in winter by setting a heating component, and can achieve the maintenance of stable oiling operation. By setting a wire rope cleaning mechanism 11, the wire rope can be cleaned first and then oiled and lubricated by using the oil guide brush structure 6, so as to avoid the influence of impurities on the surface of the wire rope on the uniformity of oiling. 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. An automatic oiling device for a tower crane, characterized in that: The invention comprises an oil cup (1), an oiling piston (2), an oiling push mechanism (3), an oil guide pipe (4), a regulating valve (5) and an oiling brush structure (6); the oiling piston (2) is arranged inside the oil cup (1); an end cover (7) is detachably mounted on the upper end of the oil cup (1); a circular plate (8) is arranged below the end cover (7); a sliding hole (9) is arranged on the circular plate (8); an oiling push mechanism (3) is arranged inside the end cover (7) above the circular plate (8); the lower end of the oiling push mechanism (3) extends out of the sliding hole (9) and is connected to the top of the oiling piston (2); the bottom of the oil cup (1) is a conical structure. The oil pipe (10) is connected to an oiling main pipe (10), one side of the lower end of the oiling main pipe (10) is connected to an oil guide pipe (4), a heating assembly is provided on the oiling main pipe (10), a bracket (16) is provided on the oil guide pipe (4), a wire rope cleaning mechanism (11) is provided on the bracket (16), a regulating valve (5) is provided on the oil guide pipe (4), an oil guide brush structure (6) is provided at one end of the oil guide pipe (4), and a hose (12) is provided on the oil guide pipe (4), the hose (12) is connected to the oil guide brush structure (6), and the oil guide brush structure (6) is adapted to the position of the wire rope cleaning mechanism (11).

2. The automatic oiling device for a tower crane according to claim 1 is characterized in that: The oil guide brush structure (6) comprises a fixed plate (601), a rotating shaft (602) and a semicircular oil guide plate (603); a fixed plate (601) is provided in the middle of one end of the oil guide pipe (4); the top and bottom of the fixed plate (601) are both provided with semicircular oil guide plates (603) rotatably arranged via the rotating shaft (602); the interior of the semicircular oil guide plate (603) is a hollow structure; an oil outlet hole (604) is provided on the inner side of the semicircular oil guide plate (603); and a plurality of oil outlet holes (604) are provided.

3. The automatic oiling device for a tower crane according to claim 2 is characterized in that: Two hoses (12) are provided, and the two hoses (12) are symmetrically arranged at one end of the oil guide pipe (4) close to one side of the fixing plate (601), and one end of the two hoses (12) is respectively connected to the cavity structure inside the semicircular oil guide plate (603).

4. The automatic oiling device for a tower crane according to claim 2 is characterized in that: A connecting spring (605) is provided on the side wall of the semicircular oil guide plate (603), one end of the connecting spring (605) is connected to the outer wall of the oil guide pipe (4), and one end of the two semicircular oil guide plates (603) away from the rotating shaft (602) are respectively provided with a first magnetic attraction plate (606) and a second magnetic attraction plate (607), and when the two semicircular oil guide plates (603) are closed, one end is magnetically fixed by the first magnetic attraction plate (606) and the second magnetic attraction plate (607).

5. The automatic oiling device for a tower crane according to claim 1, characterized in that: The oiling mechanism (3) comprises a screw (301), an internally threaded sleeve (302), a first drive motor (303) and an electromagnetic relay. The screw (301) is rotatably arranged on the upper part of the end cover (7). The internally threaded sleeve (302) is slidably arranged in the sliding hole (9). The internally threaded sleeve (302) is threadedly connected to the screw (301), and the lower end of the internally threaded sleeve (302) is connected to the top of the oiling piston (2). The first drive motor (303) and the electromagnetic relay are arranged inside the end cover (7). The screw (301) is driven by the first drive motor (303), and the electromagnetic relay is connected to the first drive motor (303).

6. The automatic oiling device for a tower crane according to claim 1, characterized in that: The heating assembly comprises a heating jacket (13) and a heating wire. The outer wall of the oil supply main pipe (10) is provided with a heating jacket (13), and the interior of the heating jacket (13) is provided with a heating wire.

7. The automatic oiling device for a tower crane according to claim 1, characterized in that: The wire rope cleaning mechanism (11) comprises a connecting rod (1101), a mounting ring (1102), a cleaning ring (1103) and a rotary drive assembly. A connecting rod (1101) is provided on one side of the bracket (16). A mounting ring (1102) is provided on one end of the connecting rod (1101). A cleaning ring (1103) is rotatably provided inside the mounting ring (1102). A cleaning brush is provided on the inner side wall of the cleaning ring (1103). A rotary drive assembly is provided on the top of the mounting ring (1102). The rotary drive assembly drives the cleaning ring (1103) to rotate.

8. The automatic oiling device for a tower crane according to claim 7, characterized in that: The rotary drive assembly comprises a gear ring (1104), a gear (1105), a drive shaft and a second drive motor (1106); a drive shaft is rotatably provided at the top of the mounting ring (1102); the drive shaft is driven by the second drive motor (1106); a gear (1105) is installed on the drive shaft; one end of the cleaning ring (1103) extends out of the interior of the mounting ring (1102) and a gear ring (1104) is provided on the outer wall; the gear ring (1104) is meshed with the gear (1105).

9. The automatic oiling device for a tower crane according to claim 1, characterized in that: An external thread is provided on the outer wall of the upper end of the oil cup (1), an internal thread is provided on the inner wall of the end cover (7) below the circular plate (8), and the end cover (7) is connected to the external thread on the outer wall of the upper end of the oil cup (1) via the internal thread.

10. The automatic oiling device for a tower crane according to claim 1, characterized in that: A first mounting plate (14) is provided on the outer wall of the oil cup (1), and a first mounting bolt (15) is provided on the first mounting plate (14); a second mounting plate (17) is symmetrically provided on one side of the bottom of the bracket (16), and a second mounting bolt (18) is provided on the second mounting plate (17).

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