Hydraulic oil cylinder hoisting tool

Abstract

The utility model relates to the technical field of hydraulic oil cylinder hoisting, in particular to a hydraulic oil cylinder hoisting tool, a cylinder cover is arranged at one end of a hydraulic oil cylinder, a plurality of locking bolts for connecting the cylinder cover with the hydraulic oil cylinder are arranged between the cylinder cover and the hydraulic oil cylinder, the hoisting tool is detachably connected with the cylinder cover, and the hoisting tool comprises a hoisting plate and a lifting lug assembly. The lifting plate is arranged in an arc shape, the lifting plate is detachably connected with the cylinder cover, the lifting lug assembly is connected to one end of the lifting plate, and the hoisting machinery is connected with the lifting lug assembly to lift the hydraulic oil cylinder. And meanwhile, when the hydraulic oil cylinder is turned over by 90 degrees, the situation that the hoisting tool is stressed unilaterally is avoided, and safety accidents caused by damage of the oil cylinder due to defects of the lifting lug in the hoisting process of the oil cylinder can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinder lifting, in particular to a hydraulic oil cylinder lifting tool. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts oil pressure into mechanical energy, performing linear reciprocating motion. When a hydraulic cylinder malfunctions and requires repair, it is typically lifted from the frame or door slot, turned 90° with a crane, and placed on a maintenance platform. Conventionally, lifting and turning the cylinder is performed using a lifting mechanism (such as a gantry crane or overhead crane) connected to the lifting lugs on both sides of the hydraulic cylinder via a wire rope and shackle.

[0003] Defects (such as air holes) may appear in the welding process of the cylinder lifting ears, and the cylinder is placed outdoors during operation and is affected by the large temperature difference between day and night. The lifting ear welds may crack due to stress. If conventional lifting methods are used, the lifting ears may break during the flipping process, resulting in serious consequences such as damage to the cylinder and casualties, posing a huge safety hazard.

[0004] At this time, it is necessary to design and process a set of cylinder lifting tools to achieve a safer and more efficient completion of the cylinder lifting operation without using cylinder lifting ears. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the purpose of the present invention is to provide a hydraulic cylinder lifting tool, which is safer and more efficient when lifting the hydraulic cylinder.

[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0007] A hydraulic cylinder lifting tool, a cylinder head is provided at one end of the hydraulic cylinder, a plurality of locking bolts are provided between the cylinder head and the hydraulic cylinder to connect the cylinder head and the hydraulic cylinder, the lifting tool is detachably connected to the cylinder head, the lifting tool includes a lifting plate and a lifting ear assembly, the lifting plate is arranged in an arc shape, and the lifting plate and the cylinder head are detachably connected, the lifting ear assembly is connected to one end of the lifting plate, and the crane is connected to the lifting ear assembly to lift the hydraulic cylinder.

[0008] Preferably, a plurality of threaded holes I are provided on the cylinder cover, and the locking bolts are cooperatively connected with the threaded holes I.

[0009] Preferably, a plurality of threaded holes II are provided on the hanging plate, the hanging plate and the cylinder cover are in close contact, the threaded holes I and the threaded holes II are aligned, and the locking bolts pass through the threaded holes I and are connected in the threaded holes II.

[0010] Preferably, the lifting ear assembly comprises a support block and a lifting ring, and both ends of the lifting ring are rotatably connected to both sides of the support block.

[0011] Preferably, a washer is provided in the middle of the hanging plate, and a connecting hole I is provided on the washer.

[0012] Preferably, a connecting bolt is fixedly provided in the middle of the support block, and the connecting bolt extends from one end of the support block. A connecting hole II is provided on the lifting plate, and the connecting hole I and the connecting hole II are aligned. The connecting bolt extends into the connecting hole I and the connecting hole II to connect the lifting ear assembly and the lifting plate.

[0013] The utility model has the following advantages and beneficial effects:

[0014] In the utility model, a fixed lifting ear structure is not used to complete the lifting operation. The tool is easy to install and only requires removing several locking bolts on the cylinder cover. At the same time, when the hydraulic cylinder is turned 90 degrees, the lifting tool will not be subjected to unilateral force, which can avoid safety accidents caused by damage to the cylinder due to defects in the lifting ears during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of a hydraulic cylinder lifting tool provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the cylinder cover structure of a hydraulic cylinder lifting tool provided by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a lifting plate of a hydraulic cylinder lifting tool provided by the utility model;

[0018] Figure 4 This is a schematic diagram of the washer structure of a hydraulic cylinder lifting tool provided by the utility model;

[0019] Figure 5 This is a structural diagram of a lifting lug assembly of a hydraulic cylinder lifting tool provided by the utility model;

[0020] Figure 6 This is a schematic diagram of the connection between the lifting lug assembly and the lifting plate of a hydraulic cylinder lifting tool provided by the utility model;

[0021] Figure 7 It is for Figure 1 A partial enlarged view of

[0022] Icon: 1-Hydraulic cylinder, 2-Cylinder head, 21-Threaded hole I, 3-Locking bolt, 4-Lifting plate, 41-Threaded hole II, 42-Connecting hole II, 5-Washer, 51-Connecting hole I, 6-Lifting ear assembly, 61-Support block, 62-Lifting ring, 63-Connecting bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0025] Example

[0026] like Figure 1-7 As shown, a hydraulic cylinder lifting tool is provided. A cylinder head 2 is provided at one end of the hydraulic cylinder 1. Several locking bolts 3 are provided between the cylinder head 2 and the hydraulic cylinder 1 to connect the cylinder head 2 and the hydraulic cylinder 1. The lifting tool is detachably connected to the cylinder head 2. The lifting tool includes a lifting plate 4 and a lifting ear assembly 6. The lifting plate 4 is arranged in an arc shape, and the lifting plate 4 and the cylinder head 2 are detachably connected. The lifting ear assembly 6 is connected to one end of the lifting plate 4. The lifting machinery and the lifting ear assembly 6 are connected to lift the hydraulic cylinder 1.

[0027] like Figure 1 、 2 As shown in , 3, 6, and 7, a plurality of threaded holes Ⅰ21 are provided on the cylinder cover 2, and the threaded holes Ⅰ21 extend into the hydraulic cylinder 1, and the locking bolts 3 are matched with the threaded holes Ⅰ21, and the locking bolts 3 can be screwed out from the threaded holes Ⅰ21. A plurality of threaded holes Ⅱ41 are provided on the lifting plate 4, and the lifting plate 4 is tightly attached to the cylinder cover 2, and the threaded holes Ⅰ21 and the threaded holes Ⅱ41 are aligned, and the locking bolts 3 pass through the threaded holes Ⅱ41 and are connected to the threaded holes Ⅰ21. During the operation of the hydraulic cylinder 1, a locking bolt 3 is installed in each threaded hole Ⅰ21. When the hydraulic cylinder 1 is lifted, the locking bolts 3 in some threaded holes Ⅰ21 are removed, and the lifting plate 4 is attached to the surface of the cylinder cover 2. The locking bolts 3 are screwed in to fix the lifting plate 4 and the hydraulic cylinder 1 in connection. The removal and connection are performed on the original basis of the hydraulic cylinder 1. No complicated structure is required, and a high connection quality can be guaranteed.

[0028] like Figure 1 、 5As shown in Figures 6 and 7, the lifting eye assembly 6 includes a support block 61 and a lifting ring 62. The two ends of the lifting ring 62 are rotatably connected to the two sides of the support block 61, and the lifting machinery can be directly connected to the lifting ring 62. Considering that if the hydraulic cylinder 1 is only connected to one set of lifting tools, it is easy to shake during the lifting process, and the single lifting ring 62 is subjected to a large force, which will shorten the service life of the lifting ring 62, the present invention adopts two sets of lifting tools to make the lifting process more stable. At the same time, the force of the two sets of lifting rings 62 is evenly distributed, thereby extending the service life of the entire lifting tool.

[0029] like Figure 1 、 4 As shown in Figures 6 and 7, a washer 5 is provided in the middle of the hanging plate 4, and a connecting hole I51 is provided on the washer 5. A connecting bolt 63 is fixedly provided in the middle of the support block 61, and the connecting bolt 63 extends from one end of the support block 61. A connecting hole II42 is provided on the hanging plate 4, and the connecting hole I51 and the connecting hole II42 are aligned. The connecting bolt 63 extends into the connecting hole I51 and the connecting hole II42 to connect the lifting ear assembly 6 and the hanging plate 4. The washer 5 is provided between the hanging plate 4 and the lifting ear assembly 6, which can reduce the friction between the hanging plate 4 and the lifting ear assembly 6 and reduce the risk of wear of the lifting ear assembly 6.

[0030] A fixed lifting lug structure is not used for lifting operations. The tool is easy to install. You only need to remove several locking bolts 3 on the cylinder head 2 and then install the lifting tool on the cylinder head 2. The lifting tool is directly connected to the hydraulic cylinder 1. The entire connection process is stable. At the same time, when the hydraulic cylinder turns 190°, the lifting tool will not be subjected to unilateral force, which can avoid safety accidents caused by damage to the cylinder due to defects in the lifting lug during the lifting process.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hydraulic cylinder lifting tool, characterized in that: A cylinder head is provided at one end of the hydraulic cylinder, and a plurality of locking bolts connecting the cylinder head and the hydraulic cylinder are provided between the cylinder head and the hydraulic cylinder. The lifting tool is detachably connected to the cylinder head. The lifting tool includes a lifting plate and a lifting ear assembly. The lifting plate is arranged in an arc shape, and the lifting plate and the cylinder head are detachably connected. The lifting ear assembly is connected to one end of the lifting plate, and the lifting machinery is connected to the lifting ear assembly to lift the hydraulic cylinder.

2. A hydraulic cylinder lifting tool according to claim 1, characterized in that: The cylinder cover is provided with a plurality of threaded holes I, and the locking bolts are cooperatively connected with the threaded holes I.

3. A hydraulic cylinder lifting tool according to claim 2, characterized in that: The hanging plate is provided with a plurality of threaded holes II, the hanging plate and the cylinder cover are in close contact, the threaded holes I and the threaded holes II are aligned, and the locking bolts pass through the threaded holes II and are connected in the threaded holes I.

4. The hydraulic cylinder lifting tool according to claim 1, characterized in that: The lifting ear assembly comprises a supporting block and a lifting ring, and two ends of the lifting ring are rotatably connected to two sides of the supporting block.

5. The hydraulic cylinder lifting tool according to claim 4, characterized in that: A washer is provided in the middle of the hanging plate, and a connecting hole I is provided on the washer.

6. The hydraulic cylinder lifting tool according to claim 5, characterized in that: A connecting bolt is fixedly provided in the middle of the support block, and the connecting bolt extends from one end of the support block. A connecting hole II is provided on the hanging plate, and the connecting hole I and the connecting hole II are aligned. The connecting bolt extends into the connecting hole I and the connecting hole II to connect the lifting ear assembly and the hanging plate.

Images