Oil cylinder hoisting tool

Abstract

An oil cylinder hoisting tool relates to the technical field of hoisting tools and comprises a support used for bearing an oil cylinder and provided with a U-shaped bayonet used for clamping a piston rod ball head of the oil cylinder; the lifting ring is mounted on the bracket and is used for connecting a sling; the limiting piece is detachably mounted on the bracket and is used for sealing the U-shaped bayonet to form an area for limiting a piston rod ball head of the oil cylinder; and the locking piece is detachably mounted on the bracket and is used for locking the limiting piece. The oil cylinder hoisting tool is simple in structure and convenient and fast to operate, the problem that the piston rod ball head of the oil cylinder is prone to slipping off from the hoisting rope is effectively solved, and the safety and stability during oil cylinder hoisting are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of lifting tooling, and in particular to a cylinder lifting tooling. Background Art

[0002] Truck cranes typically use a five-leg structure to ensure the crane's stability and safety, with each leg equipped with a cylinder. Currently, the cylinder is installed using a hoisting rope. Specifically, the hoisting rope is used to loop the ball end of the cylinder's piston rod, and then the cylinder is lifted and moved to the predetermined installation position on the crane frame for subsequent installation. However, since the ball end of the cylinder's piston rod is very smooth, the hoisting rope cannot be effectively locked when the loop is looped. This results in the cylinder's piston rod ball end easily slipping off the rope during the hoisting process, posing an obvious safety hazard. Therefore, it is necessary to design a cylinder hoisting tool to solve this problem and ensure the safety and stability of the cylinder during hoisting. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a cylinder lifting tool to solve the above technical problems.

[0004] The present application provides a cylinder lifting tool, comprising: a bracket for supporting the cylinder, the bracket being provided with a U-shaped bayonet for clamping the ball head of the piston rod of the cylinder; a lifting ring installed on the bracket for connecting the lifting sling; a limiting piece detachably installed on the bracket for closing the U-shaped bayonet to form an area for limiting the ball head of the piston rod of the cylinder; and a locking piece detachably installed on the bracket for locking the limiting piece.

[0005] In some optional embodiments, the bracket includes a lifting ring mounting portion, a connecting portion, and a bearing portion connected in sequence, the lifting ring mounting portion is located at the top of the bracket and a lifting ring is installed on the lifting ring mounting portion, the connecting portion is located in the middle of the bracket, and the bearing portion is located at the bottom of the bracket and a U-shaped bayonet is provided on the bearing portion.

[0006] In some optional embodiments, a nut is provided on the eyelet mounting portion, and the eyelet is an eyelet screw, which is threadedly connected to the nut.

[0007] In some optional embodiments, portions of the load-bearing portion corresponding to the two parallel side walls of the U-shaped bayonet are provided with through holes, which are arranged along the width direction of the U-shaped bayonet and are used for inserting the limiting member.

[0008] In some optional embodiments, portions of the load-bearing portion corresponding to the two parallel side walls of the U-shaped bayonet are provided with threaded holes communicating with the through hole. The threaded holes are arranged along the length direction of the U-shaped bayonet and are used to connect the locking member.

[0009] In some optional embodiments, the limiting member is rod-shaped, one end of the limiting member is used to be inserted into the through hole, and the other end of the limiting member is provided with a pulling portion whose size is larger than the through hole.

[0010] In some optional embodiments, an annular groove corresponding to the position of the locking member is provided on the limiting member, and the annular groove is arranged along the circumference of the limiting member and is used for the locking member to extend into.

[0011] In some optional embodiments, the bracket further includes reinforcing ribs, which are arranged on the eye mounting portion, the connecting portion, and the bearing portion.

[0012] In some optional embodiments, a flared structure is provided at the opening of the U-shaped bayonet, and the flared structure facilitates the piston rod ball head of the oil cylinder to be inserted into the U-shaped bayonet.

[0013] In some optional embodiments, the oil cylinder lifting tool further includes: a protective pad, which is installed on the periphery of the U-shaped bayonet on the bracket, and is used to support the ball head of the piston rod of the oil cylinder and prevent damage to the surface of the piston rod ball head.

[0014] Based on the above technical solution, the oil cylinder lifting tool provided by the present application includes a bracket, a lifting ring, a limit piece, and a locking piece, wherein the bracket is used to support the oil cylinder and has a U-shaped bayonet at the bottom for clamping the piston rod ball head of the oil cylinder. The U-shaped bayonet is closed by the limit piece to form an area for limiting the piston rod ball head of the oil cylinder. The limit piece is locked by the locking piece to prevent the limit piece from loosening. The oil cylinder lifting tool provided by the present application has a simple structure and is easy to operate. It effectively solves the problem that the piston rod ball head of the oil cylinder is easy to slip off the lifting rope, and ensures safety and stability when lifting the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a front view of a cylinder lifting tool provided in an embodiment of the present application with the limiting parts and locking parts hidden.

[0017] Figure 2 This is a right view of a cylinder lifting tool provided in an embodiment of the present application with the limiting parts and locking parts hidden.

[0018] Figure 3 A top perspective view of a cylinder lifting tool provided in an embodiment of the present application.

[0019] Figure 4A structure diagram of a limiting piece provided by an embodiment of the present application.

[0020] Figure 5 A structure diagram of a protective pad provided by an embodiment of the present application.

[0021] Figure 6 A structure diagram of an oil cylinder hoisting tool provided by an embodiment of the present application in use.

[0022] Figure 7 For Figure 6 A structure diagram of the middle A.

[0023] The reference signs: 1, oil cylinder; 101, piston rod ball head; 100, oil cylinder hoisting tool; 10, support; 11, lifting ring mounting portion; 111, nut; 12, connecting portion; 13, bearing portion; 131, U-shaped socket; 132, flared structure; 133, through hole; 134, threaded hole; 14, reinforcing rib; 20, lifting ring; 30, limiting piece; 31, pulling portion; 32, annular groove; 40, locking piece; 50, protective pad. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the description of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0025] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connection", "setting", "mounting" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The terms "upper", "lower", "left", "right", "front", "back", "center", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, which is only for the convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] The terms "first," "second," "third," etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order, unless expressly specified and limited otherwise.

[0028] The terms "comprises," "includes," "has," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus. In the absence of more limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0029] The term "plurality" means two or more (including two).

[0030] The term "and / or" is a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0031] The terms "one embodiment," "as an example," "in one implementation," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example may be included in at least one embodiment or example of the present application. The schematic representations of such terms do not necessarily refer to the same embodiment, nor are they mutually exclusive independent or alternative embodiments. The embodiments and features within the embodiments of the present application may be combined in appropriate ways unless there is a conflict.

[0032] Figure 1 This is a front view of a cylinder lifting tool 100 provided in an embodiment of the present application, with the limiting member 30 and the locking member 40 hidden. Figure 2 This is a right side view of a cylinder lifting tool 100 provided in an embodiment of the present application, with the limiting member 30 and the locking member 40 hidden. Figure 3 A top perspective view of a cylinder lifting tool 100 provided in an embodiment of the present application is shown as follows: Figures 1 to 3 As shown, an embodiment of the present application provides a cylinder lifting tool 100, including a bracket 10, a lifting ring 20, a limiting member 30, a locking member 40, and a protective pad 50.

[0033] The bracket 10 includes a ring mounting portion 11 , a connecting portion 12 , and a bearing portion 13 , which are connected in sequence.

[0034] The eyebolt mounting portion 11 is located at the top of the bracket 10, and a eyebolt 20 is mounted on the eyebolt mounting portion 11. As an example, two nuts 111 are welded to the eyebolt mounting portion 11, and the two nuts 111 can be coaxially arranged and welded together. The eyebolt 20 is a standard part—an eyebolt—which is installed on the eyebolt mounting portion 11 by threading it into the two nuts 111.

[0035] The bearing portion 13 is located at the bottom of the bracket 10 and is used to clamp the piston rod ball head 101 of the oil cylinder 1 and the bearing oil cylinder 1 (see the oil cylinder 1). Figure 6 and Figure 7 ). A U-shaped bayonet 131 for clamping the piston rod ball head 101 is provided on the bearing portion 13. As an example, the U-shaped bayonet 131 is located directly below the lifting ring mounting portion 11, so that when the bracket 10 and the piston rod ball head 101 of the oil cylinder 1 are installed, the lifting ring 20 can be located directly above the piston rod ball head 101 of the oil cylinder 1, thereby ensuring that the lifting point on the lifting ring 20 is basically aligned with the center of gravity of the oil cylinder 1 in the vertical direction, preventing the oil cylinder 1 from deflecting too much after lifting; the width of the U-shaped bayonet 131 is smaller than the diameter of the piston rod ball head 101, so as to ensure that the bearing portion 13 can clamp the piston rod ball head 101 of the oil cylinder 1; the opening position of the U-shaped bayonet 131 is provided with a flared structure 132 formed by chamfering, and the flared structure 132 facilitates the piston rod ball head 101 of the oil cylinder 1 to be clamped into the U-shaped bayonet 131.

[0036] The connecting portion 12 is located in the middle of the bracket 10 and connects the eye mounting portion 11 and the load-bearing portion 13. As an example, the eye mounting portion 11 is arranged horizontally, and the load-bearing portion 13 is arranged horizontally directly below the eye mounting portion 11 and the length of the load-bearing portion 13 is significantly longer than the length of the eye mounting portion 11. The connecting portion 12 is arranged at an angle, with the upper end of the connecting portion 12 connected to one end of the eye mounting portion 11 and the lower end of the connecting portion 12 connected to the end of the load-bearing portion 13 facing away from the U-shaped bayonet 131.

[0037] In terms of materials, the bracket 10 can be made of high-strength steel, alloy or other high-quality metals to ensure strength and durability; in terms of process, the bracket 10 can be made by bending a piece of metal sheet twice, which can simplify the production process and reduce manufacturing costs.

[0038] Furthermore, to ensure the structural strength of the bracket 10, the bracket 10 may further include reinforcing ribs 14, which are disposed on at least one of the eyebolt mounting portion 11, the connecting portion 12, and the load-bearing portion 13. As an example, there are two reinforcing ribs 14, which are disposed on the edges of the eyebolt mounting portion 11, the connecting portion 12, and the load-bearing portion 13, respectively.

[0039] The limiting piece 30 is detachably mounted on the bearing part 13 of the support 10, and is used to close the U-shaped notch 131 and form a region for limiting the piston rod ball head 101 of the oil cylinder 1. As an example, as shown in Figure 3 , the part corresponding to the two parallel side walls of the U-shaped notch 131 of the bearing part 13 is provided with a corresponding through hole 133, which is close to the opening position of the U-shaped notch 131 and is arranged along the width direction of the U-shaped notch 131, and is used for inserting the limiting piece 30; Figure 4 A structural schematic diagram of a limiting piece 30 provided by the embodiment of the present application is shown in Figure 4 , the limiting piece 30 is a plug, one end of the plug is used for inserting into the through hole 133, and the other end of the plug is provided with a pulling part 31 with a size larger than the through hole 133. The pulling part 31 can be in a circular ring shape, and the pulling part 31 provides a pulling point, so that the plug can be pulled out of the through hole 133 more easily.

[0040] The locking piece 40 is detachably mounted on the bearing part 13 of the support 10, and is used to lock the limiting piece 30 and prevent the limiting piece 30 from loosening. As an example, the part corresponding to the two parallel side walls of the U-shaped notch 131 of the bearing part 13 is provided with a threaded hole 134 in communication with the through hole 133, which is arranged along the length direction of the U-shaped notch 131 and corresponds to the opening position of the U-shaped notch 131, and is used for connecting the locking piece 40; the limiting piece 30 is a plug, the locking piece 40 is a locking screw and the number is two, and the two locking screws are respectively screwed with the two threaded holes 134 of the bearing part 13, and lock the plug by abutting against the outer surface of the plug.

[0041] Further, as shown in Figure 4 , the plug can be provided with two annular grooves 32 corresponding to the positions of the two threaded holes 134, which are arranged along the circumferential direction of the plug, and are used for the locking screw to extend into. When the locking screw extends into the annular groove 32, the groove wall of the annular groove 32 axially stops the locking screw, thereby enhancing the locking effect of the locking screw on the plug and ensuring that the locked plug will not come out of the through hole 133 when subjected to external force.

[0042] Figure 5 A structural schematic diagram of a protective pad 50 provided by the embodiment of the present application is shown in Figure 2 , Figure 3 and Figure 5 , the protective pad 50 is mounted on the U-shaped notch 131 of the bearing part 13 of the support 10, and is used to support the piston rod ball head 101 of the oil cylinder 1 and prevent the surface of the piston rod ball head 101 from being damaged. As an example, the protective pad 50 is in a U shape, the protective pad 50 is mounted on the upper surface of the bearing part 13 of the support 10 by a plurality of screws, and is arranged along the edge of the U-shaped notch 131. The distribution of the screw holes on the protective pad 50 is shown in Figure 3and Figure 5 ; The protective pad 50 is made of copper, which has moderate hardness and excellent ductility and plasticity. Even if the surface of the piston rod ball head 101 of the oil cylinder 1 is very smooth, the copper protective pad 50 can provide sufficient friction and support force to prevent the piston rod ball head 101 of the oil cylinder 1 from slipping or the surface from being damaged during the lifting process.

[0043] The use process of the hydraulic cylinder lifting tool 100: Figure 6 This is a structural diagram of a cylinder lifting tool 100 provided in an embodiment of the present application when in use. Figure 7 for Figure 6 The structural diagram of the A direction is as follows: Figure 6 and Figure 7 As shown, the oil cylinder 1 is placed upright with the piston rod ball head 101 facing upward. First, the U-shaped bayonet 131 of the bearing portion 13 of the bracket 10 is aligned with the neck position of the piston rod ball head 101 and inserted. Then, the limiter 30 is installed on the bearing portion 13 of the bracket 10 to prevent the piston rod ball head 101 of the oil cylinder 1 from sliding out. For example, the latch is inserted into the through hole 133 of the bearing portion 13 to close the U-shaped bayonet 131, forming an area for limiting the position of the piston rod ball head 101 of the oil cylinder 1. Next, the locking member 40 is installed on the bearing portion 13 of the bracket 10 to lock the limiter 30 and prevent it from loosening. For example, two locking screws are respectively installed through the two threaded holes 134 of the bearing portion 13, so that the threaded ends of the two locking screws respectively extend into the two annular grooves 32 of the latch and tighten, thereby locking the latch. Finally, connect the lifting rope or other lifting slings to the lifting ring 20, adjust the position of the bracket 10, ensure that the lifting point on the lifting ring 20 is basically aligned with the center of gravity of the cylinder 1 in the vertical direction, and prevent the cylinder 1 from deflecting too much after lifting. Then the lifting operation can be carried out.

[0044] When the oil cylinder lifting fixture 100 needs to be removed from the piston rod ball head 101 of the oil cylinder 1, first remove the lifting rope or other lifting slings on the lifting ring 20, then remove the locking piece 40 and the limit piece 30 in turn, and finally pull the bracket 10 out from the neck position of the piston rod ball head 101 of the oil cylinder 1 to complete the disassembly.

[0045] In summary, the oil cylinder lifting tool provided in the embodiment of the present application includes a bracket, a lifting ring, a limit piece, and a locking piece, wherein the bracket is used to support the oil cylinder and has a U-shaped bayonet at the bottom for clamping the ball head of the piston rod of the oil cylinder. The U-shaped bayonet is closed by the limit piece to form an area for limiting the ball head of the piston rod of the oil cylinder. The limit piece is locked by the locking piece to prevent the limit piece from loosening. The oil cylinder lifting tool provided by the present application has a simple structure and is easy to operate. It effectively solves the problem that the ball head of the piston rod of the oil cylinder is easy to slip off the lifting rope, and ensures safety and stability when lifting the oil cylinder.

[0046] The above description is provided as an enabling teaching of the application and is not intended to limit its scope, as the scope of the application is limited solely by the claims.

Claims

1. A hydraulic cylinder lifting tool, characterized in that: include: A bracket for supporting the oil cylinder, wherein the bracket is provided with a U-shaped bayonet for clamping the ball head of the piston rod of the oil cylinder; a lifting ring, mounted on the bracket and used for connecting a lifting sling; a limiting member, detachably mounted on the bracket, for closing the U-shaped bayonet to form an area for limiting the ball head of the piston rod of the oil cylinder; and A locking member is detachably mounted on the bracket and is used to lock the limiting member.

2. The oil cylinder lifting tool according to claim 1, characterized in that: The bracket includes a lifting ring mounting portion, a connecting portion, and a bearing portion connected in sequence, the lifting ring mounting portion is located at the top of the bracket and the lifting ring is installed on the lifting ring mounting portion, the connecting portion is located in the middle of the bracket, the bearing portion is located at the bottom of the bracket and the U-shaped bayonet is provided on the bearing portion.

3. The oil cylinder lifting tool according to claim 2, characterized in that: The lifting ring mounting portion is provided with a nut, and the lifting ring is a lifting ring screw and is threadedly connected with the nut.

4. The oil cylinder lifting tool according to claim 2, characterized in that: Portions of the bearing portion corresponding to the two parallel side walls of the U-shaped bayonet are provided with through holes, and the through holes are arranged along the width direction of the U-shaped bayonet and are used for inserting the limiting member.

5. The oil cylinder hoisting tool according to claim 4, characterized in that: Portions of the bearing portion corresponding to the two parallel side walls of the U-shaped bayonet are provided with threaded holes communicating with the through hole. The threaded holes are arranged along the length direction of the U-shaped bayonet and are used to connect the locking member.

6. The oil cylinder hoisting tool according to claim 4 or 5, characterized in that: The limiting member is in the shape of a rod, one end of the limiting member is used to be inserted into the through hole, and the other end of the limiting member is provided with a pulling portion whose size is larger than that of the through hole.

7. The oil cylinder hoisting tool according to claim 6, characterized in that: The limiting member is provided with an annular groove corresponding to the position of the locking member. The annular groove is arranged along the circumference of the limiting member and is used for the locking member to extend into.

8. The oil cylinder hoisting tool according to claim 2, characterized in that: The bracket further includes a reinforcing rib, which is arranged on at least one of the eyebolt mounting portion, the connecting portion, and the bearing portion.

9. The oil cylinder hoisting tool according to claim 1, characterized in that: The opening position of the U-shaped bayonet is provided with a flaring structure, and the flaring structure facilitates the piston rod ball head of the oil cylinder to be snapped into the U-shaped bayonet.

10. The oil cylinder hoisting tool according to claim 1, characterized in that: Also includes: The protective pad is installed on the peripheral side of the U-shaped bayonet on the bracket and is used to support the piston rod ball head of the oil cylinder and prevent the surface of the piston rod ball head from being damaged.

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