A lifting tool

Abstract

The present invention discloses a lifting tool. Specifically, the lifting tool comprises: a base, a retractable guide column, a bracket and an oil cylinder; the retractable guide column and the oil cylinder are arranged on the base; the retractable guide column is retracted in a direction perpendicular to the base; the retractable guide column and the oil cylinder are both connected to the bracket, and the bracket is parallel to the base; the retractable guide column is used to control the moving direction of the bracket, and the oil cylinder is used to provide power for the movement of the bracket; the bracket is used to carry a workpiece. The lifting tool provided in the embodiment of the present invention allows workers to easily enter the inside of the workpiece to perform various assembly operations. At the same time, since the bracket can be raised and lowered, workers can also reasonably adjust the height of the workpiece through the lifting bracket according to different assembly positions to facilitate assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical equipment, and in particular to a lifting tool. Background Art

[0002] At present, rotating shell workpieces are often used in industrial equipment. Workers need to enter the inner side of the rotating shell to perform assembly work. The tooling in the prior art is difficult to simultaneously meet the requirements of workers for convenient entry and exit and convenient operation. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a lifting tool that can simultaneously meet the requirements of easy entry and exit for workers and convenient operation.

[0004] Based on the above purpose, the present invention provides a lifting tool, comprising: a base, a retractable guide column, a bracket and a cylinder;

[0005] The retractable guide column and the oil cylinder are arranged on the base;

[0006] The retractable guide column is retracted in a direction perpendicular to the base;

[0007] The retractable guide column and the oil cylinder are both connected to the bracket, and the bracket is parallel to the base;

[0008] The retractable guide column is used to control the moving direction of the bracket, and the oil cylinder is used to provide power for the bracket to move;

[0009] The support is used for carrying a workpiece.

[0010] Further, the retractable guide column includes a guide sleeve and a guide rod;

[0011] The guide sleeve is connected to the base;

[0012] The guide rod is disposed in the guide sleeve and can partially extend out of the guide sleeve;

[0013] One end of the guide rod away from the base is connected to the bracket.

[0014] Furthermore, the retractable guide column further includes a guide sleeve;

[0015] The guide sleeve is arranged between the guide sleeve and the guide rod.

[0016] Furthermore, each of the oil cylinders is matched with one of the retractable guide columns to form an assembly, and a plurality of the assemblies are evenly arranged on the edge of the base.

[0017] Furthermore, it also includes a manual hydraulic pump, which is arranged on the base and connected to the oil cylinder.

[0018] Furthermore, universal wheels are arranged on the base.

[0019] Furthermore, it also includes a limit block, which is arranged on the bracket.

[0020] Furthermore, a plurality of the limit blocks are evenly arranged on the bracket to form a circle equivalent to the outer diameter of the workpiece.

[0021] Furthermore, it also includes a limiting slide groove, which is arranged on the bracket, and the limiting block is arranged in the limiting slide groove, so that the distance between the limiting block and the center of the bracket can be adjusted.

[0022] Furthermore, the base includes four long rods and four short rods, and the long rods and the short rods are alternately connected end to end in sequence.

[0023] Furthermore, the long rod and the short rod are both provided with grooves, and the oil pipe of the oil cylinder is arranged in the grooves.

[0024] From the above description, it can be seen that an embodiment of the present invention provides a kind of lifting tool, by arranging a retractable guide column and a cylinder on the base, connecting the bracket to the retractable guide column and the cylinder, and utilizing the retractable guide column and the cylinder to realize the lifting and lowering of the bracket, so that workers can easily enter the inside of the workpiece to perform various assembly operations. At the same time, since the bracket can be lifted and lowered, the workers can also reasonably adjust the height of the workpiece by lifting the bracket according to different assembly positions to facilitate assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0026] Figure 1 A schematic structural diagram of an embodiment of the lifting tool provided by the present invention in a landing state;

[0027] Figure 2 A schematic structural diagram of an embodiment of the lifting tool provided by the present invention in a raised state;

[0028] Figure 3 An isometric view of an embodiment of the lifting tool provided by the present invention in a raised state;

[0029] Figure 4 A top view of an embodiment of the lifting tool provided by the present invention. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0031] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] At present, the rotating shell workpiece is often placed on a support frame prepared by welding, so that workers can drill in from the bottom of the support frame. However, the height of the support frame is fixed, which makes it impossible to adjust the height of the workpiece. If the support frame is too low, it is inconvenient for workers to enter and exit the rotating shell workpiece. If the support frame is too high, the height of the workpiece from the ground will be very high, and it is inconvenient for workers to perform assembly operations after entering the inside of the workpiece.

[0033] Therefore, an embodiment of the present invention provides a lifting tool, which can conveniently adjust the height to facilitate workers to complete the assembly operation. Figure 1 and Figure 2 As shown, the lifting tooling includes: a base 1, a retractable guide column 2, a bracket 5 and a cylinder 3; the retractable guide column 2 and the cylinder 3 are arranged on the base 1; the retractable guide column 2 is retractable in a direction perpendicular to the base 1; the retractable guide column 2 and the cylinder 3 are both connected to the bracket 5, and the bracket 5 is parallel to the base 1; the retractable guide column 2 is used to control the moving direction of the bracket 5, and the cylinder 3 is used to provide power for the movement of the bracket 5; the bracket 5 is used to carry a workpiece.

[0034] It can be seen that by arranging the retractable guide column and the oil cylinder on the base, connecting the bracket to the retractable guide column and the oil cylinder, and utilizing the retractable guide column and the oil cylinder to realize the lifting and lowering of the bracket, workers can conveniently enter the inside of the workpiece to perform various assembly operations. At the same time, since the bracket can be lifted and lowered, workers can also reasonably adjust the height of the workpiece by lifting the bracket according to different assembly positions to facilitate assembly.

[0035] It should be understood that when the workpiece is placed on the support 5, the workpiece can be supported evenly under the action of gravity. In particular, the lifting fixture in the embodiment of the present invention is suitable for rotating shell workpieces.

[0036] like Figure 2 As shown, in some embodiments of the present invention, the retractable guide column 2 includes a guide sleeve 21 and a guide rod 23; the guide sleeve 21 is connected to the base 1; the guide rod 23 is arranged in the guide sleeve 21 and can partially extend out of the guide sleeve 21; the end of the guide rod 23 away from the base 1 is connected to the bracket 5.

[0037] By arranging the guide rod 23 to be located in the guide sleeve 21 and to be able to partially extend out of the guide sleeve 21, when the piston rod of the oil cylinder is extended, the guide rod 23 can extend along the extension direction of the guide sleeve 21, thereby guiding the lifting of the bracket and preventing the bracket 5 from tilting (refer to Figure 2 ), when the piston rod of the oil cylinder returns, the guide rod 23 can be retracted into the guide sleeve 21, guiding the bracket 5 to smoothly descend in the opposite direction of the rise (refer to Figure 1 ).

[0038] In some embodiments of the present invention, the telescopic guide column 2 further includes a guide sleeve 22 ; the guide sleeve 22 is disposed between the guide sleeve 21 and the guide rod 23 .

[0039] Such a structure can ensure that the guide sleeve 21 and the guide rod 23 do not directly contact each other. The guide sleeve 22 is made of a material with a low friction coefficient, which can effectively reduce the sliding resistance of the guide rod 23 during the extension and retraction process.

[0040] refer to Figure 3 In some embodiments of the present invention, each of the oil cylinders 3 is matched with one of the retractable guide columns 2 to form an assembly, and a plurality of the assemblies are evenly arranged on the edge of the base 1 .

[0041] Such a structure ensures that each of the oil cylinders 3 is equipped with a retractable guide column 2. During the extension and retraction of the piston rod of the oil cylinder 3, the retractable guide column 2 can timely and reliably guide the bracket 5. The components are evenly arranged on the edge of the base 1, which can ensure that the bracket 5 is subjected to uniform force at all angles, so that the bracket 5 always remains parallel to the base 1. Compared with the middle position, the edge force can better ensure the safety and stability of the lifting tooling.

[0042] It should be understood that when the base 1 includes a continuous flat plate, the edge of the base 1 refers to the peripheral position of the continuous flat plate; when the base 1 is surrounded by rods, the edge of the base 1 refers to the edge of the shape formed by the rods.

[0043] In some embodiments of the present invention, a manual hydraulic pump 4 (see Figure 1 ), the manual hydraulic pump 4 is arranged on the base 1 and connected to the oil cylinder 3.

[0044] With such a structure, by manually stepping on the pedal on the manual hydraulic pump 4, the manual hydraulic pump 4 generates oil pressure, and the oil cylinder 3 is driven to rise and fall through the hydraulic oil pipe, so that the bracket 5 can be raised and lowered. Since no external power supply is required, workers can use the device in any environment as needed, and it has the advantage of simple operation.

[0045] refer to Figure 1 and Figure 2 , universal wheels (not marked in the figure) are arranged on the base 1. The universal wheels are used to support the entire tooling. Through the universal wheels, the lifting tooling can be moved, so that workers can conveniently move the lifting tooling to the required working position. At the same time, the universal wheels can be used to transform the lifting tooling into a transportation tool, and the assembled workpiece can be directly moved to the workstation of the next process without changing the transportation tool, which is simple and convenient.

[0046] Optionally, a brake structure is also provided on the universal wheel. The brake structure can stop the lifting tool at any time during the movement to improve safety and stability; in the stopped state, the universal wheel is locked by the brake structure to prevent the lifting tool from being suddenly moved by external force, thereby preventing workers from being injured due to accidental movement of the tool.

[0047] In some embodiments of the present invention, a limit block 6 is further included, and the limit block 6 is arranged on the bracket 5 (refer to Figure 2 ). By providing the limit block 6, the workpiece can be fixed on the bracket, so that the workpiece rises and falls together with the bracket.

[0048] In some embodiments of the present invention, a plurality of the limit blocks 6 are evenly arranged on the bracket 5 to form a circle equivalent to the outer diameter of the workpiece. Here, the workpiece is arranged on the inner side of the limit block 6, and its movement in the plane is restricted. When the height of the workpiece is adjusted, the workpiece is more stable and there is no risk of falling off.

[0049] Optionally, the number of the limiting blocks 6 is four.

[0050] In some embodiments of the present invention, a limiting slide groove (not shown) is further included, the limiting slide groove is arranged on the bracket 5, and the limiting block 6 is arranged in the limiting slide groove, so that the distance between the limiting block 6 and the center of the bracket can be adjusted. Through such a structure, the limiting block 6 can be applied to workpieces with different outer diameters, so that the lifting tool has a wide range of applicability.

[0051] It should be understood that the limit block 6 includes a locking structure. When the limit block 6 needs to be moved, the locking structure is opened. When the workpiece needs to be fixed on the bracket, the position of the limit block 6 is locked using the locking structure.

[0052] refer to Figure 3 and Figure 4 In some embodiments of the present invention, the base 1 includes four long rods and four short rods, and the long rods and the short rods are connected alternately end to end. The base 1 with such a structure has an octagonal structure, which is similar to a circle and can better provide support for the workpiece. In addition, with the rod-shaped structure, the base is light in weight, low in cost, and easy to manufacture.

[0053] Optionally, the retractable guide column 2 and the oil cylinder 3 are arranged in the middle of the short rod.

[0054] In some embodiments of the present invention, the long rod and the short rod are both provided with grooves, and the oil pipe of the oil cylinder is provided in the grooves. By providing the grooves and accommodating the oil pipe of the oil cylinder, the overall appearance of the base 1 is ensured to be neat and tidy, and the wear caused by the exposed oil pipe is avoided. In addition, the danger of workers being tripped by the exposed oil pipe can be avoided.

[0055] The lifting tool in the embodiment of the present invention realizes the lifting and lowering of the workpiece through a simple hydraulic drive. The tool can be raised to the highest point before the worker enters, which is convenient for the worker to enter the inside of the workpiece. After the worker enters, the tool is gradually lowered according to the height adjustment of the assembly point, so that the worker can perform assembly operations at the most reasonable height. The lifting tool has the advantages of easy assembly, low cost, flexible use, and easy movement.

[0056] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present invention, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0057] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting tool, characterized in that: include: Base, retractable guide column, bracket, oil cylinder and limit block; The retractable guide column and the oil cylinder are arranged on the base; The retractable guide column is retracted in a direction perpendicular to the base; The retractable guide column and the oil cylinder are both connected to the bracket, and the bracket is parallel to the base; The retractable guide column is used to control the moving direction of the bracket, and the oil cylinder is used to provide power for the movement of the bracket; The bracket is used to carry the workpiece; a limiting slide groove is arranged on the bracket, and the limiting block is arranged in the limiting slide groove, so that the distance between the limiting block and the center of the bracket can be adjusted; a plurality of the limiting blocks form a circle equivalent to the outer diameter of the workpiece; the workpiece is a rotating shell workpiece.

2. The lifting tool according to claim 1, characterized in that: The retractable guide column comprises a guide sleeve and a guide rod; The guide sleeve is connected to the base; The guide rod is disposed in the guide sleeve and can partially extend out of the guide sleeve; One end of the guide rod away from the base is connected to the bracket.

3. The lifting tool according to claim 2, characterized in that: The retractable guide column also includes a guide sleeve; The guide sleeve is arranged between the guide sleeve and the guide rod.

4. The lifting tool according to claim 1, characterized in that: Each of the oil cylinders is matched with a retractable guide column to form an assembly, and a plurality of the assemblies are evenly arranged on the edge of the base.

5. The lifting tool according to claim 1, characterized in that: It also includes a manual hydraulic pump, which is arranged on the base and connected to the oil cylinder.

6. The lifting tool according to claim 1, characterized in that: Universal wheels are arranged on the base.

7. The lifting tool according to claim 1, characterized in that: The base comprises four long rods and four short rods, and the long rods and the short rods are alternately connected end to end in sequence.

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