Erecting hydraulic cylinder and adapter mechanism
By setting a first rotating shaft and a second rotating shaft connected to the oil pipe on the hydraulic cylinder lifting lug, the problem of hydraulic pipeline bending during the erection action is solved, realizing multi-degree-of-freedom rotation and translation of the oil pipe, and ensuring the stability of the hydraulic system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HENGLI HYDRAULIC
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-08
AI Technical Summary
The hydraulic pipes on the lifting lugs of the erecting hydraulic cylinder are prone to bending and kinking during the erection process, which can lead to the breakage of steel oil pipes or the failure of hoses due to bending.
The oil pipe is rotatably connected to the lifting lug and the shaft pin at both ends via the first and second rotating shafts respectively. During the cylinder body erection process, the oil pipe can rotate and translate around the two rotating shafts, providing two rotational degrees of freedom and two translational degrees of freedom, thus avoiding bending under stress.
This effectively prevents hydraulic pipes from bending during the erection process, ensuring the stability and reliability of the oil pipes and avoiding breakage or bending failure.
Smart Images
Figure CN224214474U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of fluid pressure actuators, and particularly relates to a lifting hydraulic cylinder and adapter mechanism. Background Technology
[0002] During the erection process, the hydraulic pipes on the lifting lugs rotate around the pivot pin along with the movement of the hydraulic cylinder, causing the hydraulic pipes to bend and twist.
[0003] In the above scenarios, if the hydraulic pipeline is rigidly connected using steel oil pipes, the oil pipes will break; if flexible hoses are used, the hoses will bend and fail.
[0004] Therefore, how to solve the technical problem of hydraulic pipelines on the lifting lugs of the erecting hydraulic cylinder bending and failing during the erection process of the hydraulic cylinder is a problem that urgently needs to be solved by those skilled in the art.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0006] This disclosure provides at least one erecting hydraulic cylinder and adapter mechanism.
[0007] In a first aspect, embodiments of this disclosure provide a hydraulic cylinder for erecting, comprising: a cylinder body, one end of which is fitted with a piston rod and the other end with a lifting lug, the lifting lug being used to pass through a pin; an adapter mechanism, disposed on the lifting lug, and comprising: an oil pipe, one end of which is provided with a first rotating shaft and the other end with a second rotating shaft; the first rotating shaft is connected to the side wall of the lifting lug, and the second rotating shaft is connected to the end face of the pin; both the first rotating shaft and the second rotating shaft have a first channel communicating with the oil pipe; wherein, during the erection of the cylinder body, the oil pipe is adapted to rotate around the pin following the lifting lug, and simultaneously the oil pipe is adapted to rotate around the second rotating shaft.
[0008] In one optional embodiment, both ends of the oil pipe are provided with rotating inner holes; wherein the first rotating shaft and the second rotating shaft are respectively engaged with the rotating inner holes of the oil pipe through sealing elements.
[0009] In one optional embodiment, both the first rotating shaft and the second rotating shaft have a protrusion at one end and a retaining ring at the other end.
[0010] In one optional embodiment, both the first rotating shaft and the second rotating shaft have oil passage holes on their sidewalls; wherein the oil passage holes are adapted to connect the first channel and the oil pipe.
[0011] In one alternative implementation, the first channel of the first rotating shaft is linear.
[0012] In one alternative implementation, the first channel of the second rotating shaft is right-angled.
[0013] In one optional embodiment, the distance between the protrusion and the retaining ring is L, and the length of the rotating inner hole is H; wherein L is greater than H.
[0014] Secondly, this disclosure also provides an adapter mechanism, comprising: an oil pipe; a first rotating shaft, which is fitted to one end of the oil pipe through a seal; a second rotating shaft, which is fitted to the other end of the oil pipe through a seal; the first rotating shaft is connected to the side wall of the lifting lug, and the second rotating shaft is connected to the end face of the shaft pin; both the first rotating shaft and the second rotating shaft are provided with a first channel communicating with the oil pipe to form an oil passage; wherein, during the cylinder body erection process, the oil pipe is adapted to rotate around the shaft pin along with the lifting lug, and at the same time, the oil pipe is adapted to rotate around the second rotating shaft.
[0015] In one optional embodiment, both ends of the oil pipe are provided with rotating inner holes; wherein the first rotating shaft and the second rotating shaft are respectively engaged with the rotating inner holes of the oil pipe through sealing elements to achieve free rotation.
[0016] In one optional embodiment, both the first rotating shaft and the second rotating shaft have a protrusion at one end and a retaining ring at the other end; the distance between the protrusion and the retaining ring is L, and the length of the rotating inner hole is H; wherein, L is greater than H.
[0017] The beneficial effect of this utility model is that the two ends of the oil pipe are rotatably connected to the lifting lug and the shaft pin through the first rotating shaft and the second rotating shaft respectively, so that the oil pipe can have two rotational degrees of freedom and two translational degrees of freedom when it moves with the erecting hydraulic cylinder, that is, rotating around the first rotating shaft, rotating around the second rotating shaft, translating along the axis of the first rotating shaft, and translating along the axis of the second rotating shaft, thereby avoiding bending under force and affecting the use.
[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a hydraulic cylinder for erection provided in an embodiment of the present disclosure;
[0022] Figure 2 This is a cross-sectional view of an adapter mechanism provided in an embodiment of the present disclosure;
[0023] Figure 3 A cross-sectional view of an oil pipe provided in an embodiment of this disclosure;
[0024] Figure 4 A schematic diagram of the installation structure of an oil pipe and a first rotating shaft and a second rotating shaft provided in an embodiment of this disclosure;
[0025] Figure 5 This is a schematic diagram showing the limiting of a first rotating shaft and a second rotating shaft according to an embodiment of the present disclosure.
[0026] In the picture:
[0027] Cylinder block 1, piston rod 11, lifting lug 12, shaft pin 13;
[0028] Adapter mechanism 2, oil pipe 21, rotating inner hole 211, bend 212, straight pipe 213, first rotating shaft 22, first channel 221, protrusion 222, retaining ring 223, oil passage hole 224, second rotating shaft 23. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0030] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.
[0031] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0032] like Figure 1 , Figure 2 As shown, at least one embodiment provides a lifting hydraulic cylinder, including: a cylinder body 1, with a piston rod 11 inserted at one end and a lifting lug 12 at the other end, the lifting lug 12 being used to pass through a shaft pin 13; and an adapter mechanism 2, disposed on the lifting lug 12, and including: an oil pipe 21, with a first rotating shaft 22 at one end and a second rotating shaft 23 at the other end. In this embodiment, the oil pipe 21 is right-angled.
[0033] Specifically, the first rotating shaft 22 is connected to the side wall of the lifting lug 12 and is arranged radially along the lifting lug 12, and the second rotating shaft 23 is connected to the end face of the shaft pin 13 and is arranged axially along the shaft pin 13.
[0034] In this embodiment, during the erection of the cylinder block 1, the lifting lug 12 will rotate around the shaft pin 13. Since the first rotating shaft 22 is connected to the lifting lug 12, the first rotating shaft 22 will drive the oil pipe 21 to rotate synchronously around the shaft pin 13. At this time, due to the presence of the second rotating shaft 23, the end of the oil pipe 21 connected to the second rotating shaft 23 will rotate around the second rotating shaft 23, so that the oil pipe 21 will not be restricted and bend.
[0035] like Figure 3 As shown, in some embodiments, both ends of the oil pipe 21 are provided with rotating inner holes 211; wherein the first rotating shaft 22 and the second rotating shaft 23 are respectively engaged with the rotating inner holes 211 of the oil pipe 21 through sealing elements to achieve free rotation.
[0036] In one embodiment, the oil pipe 21 is integrally formed.
[0037] In another implementation, such as Figure 3 As shown, the oil pipe 21 includes a bend 212 and a pair of straight pipes 213. One end of the straight pipe 213 is connected to the bend 212, and the other end is provided with a rotating inner hole 211.
[0038] In this embodiment, since both the first rotating shaft 22 and the second rotating shaft 23 are rotatably arranged, and the extension direction of the first rotating shaft 22 and the extension direction of the second rotating shaft 23 are orthogonal (i.e. forming the X-axis and Y-axis), the oil pipe 21 can rotate around the directions of the two axes when subjected to force, thereby avoiding bending due to restricted rotation.
[0039] like Figure 4 As shown, in some embodiments, one end of the first rotating shaft 22 and the second rotating shaft 23 are provided with a protrusion 222, and the other end is provided with a retaining ring 223.
[0040] In this embodiment, both the protrusion 222 and the retaining ring 223 protrude from the rotating inner hole 211, thereby limiting the first rotating shaft 22 and the second rotating shaft 23 so that they do not disengage from the rotating inner hole 211.
[0041] like Figure 5 As shown, in some embodiments, the distance between the protrusion 222 and the retaining ring 223 is L, and the length of the rotating inner hole 211 is H; where L is greater than H.
[0042] In this embodiment, since L is greater than H, both ends of the oil pipe 21 can slide on the first rotating shaft 22 and the second rotating shaft 23, so that the oil pipe 21 twists when subjected to force without bending.
[0043] In some embodiments, both the first rotating shaft 22 and the second rotating shaft 23 have a first channel 221 communicating with the oil pipe 21 to form an oil passage.
[0044] In this embodiment, an oil passage is formed between the first channel 221 in the first rotating shaft 22 and the second rotating shaft 23 and the oil pipe 21 to facilitate the flow of hydraulic oil.
[0045] In some embodiments, the sidewalls of the first rotating shaft 22 and the second rotating shaft 23 are provided with oil passage holes 224; wherein, the oil passage holes 224 are adapted to connect the first channel 221 and the oil pipe 21.
[0046] In this embodiment, the presence of the oil passage 224 connects the first channel 221 and the oil pipe 21, thereby allowing hydraulic oil to flow.
[0047] In some embodiments, the first channel 221 of the first rotating shaft 22 is linear.
[0048] In some embodiments, the first channel 221 of the second rotating shaft 23 is right-angled.
[0049] At least one embodiment also provides an adapter mechanism, including: an oil pipe 21; a first rotating shaft 22, which is engaged with one end of the oil pipe 21 through a seal; a second rotating shaft 23, which is engaged with the other end of the oil pipe 21 through a seal; the first rotating shaft 22 is connected to the side wall of the lifting lug 12, and the second rotating shaft 23 is connected to the end face of the shaft pin 13; both the first rotating shaft 22 and the second rotating shaft 23 are provided with a first channel 221 communicating with the oil pipe 21 to form an oil passage 24; wherein, during the process of the cylinder body 1 being erected, the oil pipe 21 is adapted to rotate around the shaft pin 13 along with the lifting lug 12, and at the same time, the oil pipe 21 is adapted to rotate around the second rotating shaft 23.
[0050] In some embodiments, the oil pipe 21 is right-angled.
[0051] In some embodiments, both ends of the oil pipe 21 are provided with rotating inner holes 211; wherein the first rotating shaft 22 and the second rotating shaft 23 are respectively engaged with the rotating inner holes 211 of the oil pipe 21 through sealing elements to achieve free rotation.
[0052] In some embodiments, one end of the first rotating shaft 22 and the second rotating shaft 23 are provided with a protrusion 222, and the other end is provided with a retaining ring 223; the distance between the protrusion 222 and the retaining ring 223 is L, and the length of the rotating inner hole 211 is H; wherein, L is greater than H.
[0053] In summary, the erecting hydraulic cylinder connects the two ends of the oil pipe 21 to the lifting lug 12 and the shaft pin 13 via the first rotating shaft 22 and the second rotating shaft 23, respectively. This allows the oil pipe 21 to have two rotational degrees of freedom and two translational degrees of freedom when it moves with the erecting hydraulic cylinder, namely, rotation around the first rotating shaft 22, rotation around the second rotating shaft 23, translation along the first rotating shaft axis, and translation along the second rotating shaft axis. This avoids bending under force, which would affect its use.
[0054] In this document, when it is said that the first component is located on the second component, this can mean that the first component can be directly formed on the second component, or that the third component can be inserted between the first component and the second component.
[0055] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.
[0056] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0057] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0058] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0059] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0061] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0062] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.
[0063] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A hydraulic cylinder for erecting, characterized in that, include: The cylinder body (1) has a piston rod (11) inserted at one end and a lifting lug (12) at the other end, which is used to pass through the shaft pin (13). The adapter mechanism (2) is mounted on the lifting lug (12) and includes: an oil pipe (21), one end of which is provided with a first rotating shaft (22) and the other end is provided with a second rotating shaft (23). The first rotating shaft (22) is connected to the side wall of the lug (12), and the second rotating shaft (23) is connected to the end face of the pin (13); Both the first rotating shaft (22) and the second rotating shaft (23) have a first channel (221) that communicates with the oil pipe (21). During the erection of the cylinder (1), the oil pipe (21) is adapted to rotate around the shaft pin (13) along with the lifting lug (12), and at the same time, the oil pipe (21) is adapted to rotate around the second rotating axis (23).
2. The erecting hydraulic cylinder as described in claim 1, characterized in that, Both ends of the oil pipe (21) are provided with rotating inner holes (211); wherein The first rotating shaft (22) and the second rotating shaft (23) are respectively connected to the rotating inner hole (211) of the oil pipe (21) through a seal.
3. The erecting hydraulic cylinder as described in claim 2, characterized in that, Both the first rotating shaft (22) and the second rotating shaft (23) have a protrusion (222) at one end and a retaining ring (223) at the other end.
4. The erecting hydraulic cylinder as described in claim 3, characterized in that, Both the first rotating shaft (22) and the second rotating shaft (23) have oil passage holes (224) on their side walls. The oil passage (224) is adapted to connect the first channel (221) and the oil pipe (21).
5. The erecting hydraulic cylinder as described in claim 1, characterized in that, The first channel (221) of the first rotating shaft (22) is linear.
6. The erecting hydraulic cylinder as described in claim 1, characterized in that, The first channel (221) of the second rotating shaft (23) is right-angled.
7. The erecting hydraulic cylinder as described in claim 3, characterized in that, The distance between the protrusion (222) and the retaining ring (223) is L, and the length of the rotating inner hole (211) is H; where L is greater than H.
8. An adapter mechanism, characterized in that, include: Oil pipe (21); The first rotating shaft (22) is fitted with one end of the oil pipe (21) through a seal; The second rotating shaft (23) is fitted to the other end of the oil pipe (21) through a seal; The first rotating shaft (22) is connected to the side wall of the lug (12), and the second rotating shaft (23) is connected to the end face of the pin (13); Both the first rotating shaft (22) and the second rotating shaft (23) have a first channel (221) connected to the oil pipe (21) to form an oil passage (24). During the erection of the cylinder (1), the oil pipe (21) is adapted to rotate around the shaft pin (13) along with the lifting lug (12), and at the same time, the oil pipe (21) is adapted to rotate around the second rotating axis (23).
9. The adapter mechanism as described in claim 8, characterized in that, Both ends of the oil pipe (21) are provided with rotating inner holes (211); wherein The first rotating shaft (22) and the second rotating shaft (23) are respectively connected to the rotating inner hole (211) of the oil pipe (21) through a seal to achieve free rotation.
10. The adapter mechanism as described in claim 9, characterized in that, One end of the first rotating shaft (22) and the second rotating shaft (23) are provided with a protrusion (222), and the other end is provided with a retaining ring (223). The distance between the protrusion (222) and the retaining ring (223) is L, and the length of the rotating inner hole (211) is H; Where L is greater than H.