Hydraulic limiting structure for winch
By designing a hydraulic limit structure for winch and controlling the motor operation with rotating components and triggers, the safety hazards and low efficiency caused by the unobserved hook position during winch operation are solved, and effective restrictions and safety improvements are achieved.
Patent Information
- Application Number
- CN202421529893.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-29
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-29
AI Technical Summary
During the operation, existing winches are prone to invisible to the position of the hook due to long operating distance or poor line of sight, which may cause the hook to touch the mechanical structure or sink into the water, damage the crane or cargo, affecting the normal progress of lifting work, low working efficiency and great safety hazards.
A hydraulic limiting structure for a winch is designed, including a rotating assembly, a first trigger member, a second trigger member, a first control valve group and a second control valve group. By connecting the rotating assembly to the reel of the winch, the first trigger member and the second trigger member are arranged on the rotating assembly, and the first control valve group and the second control valve group are connected to the motor of the winch to control the motor operation. When the hook is close to the mechanical structure or is infiltrated, the trigger member conflicts with the corresponding control valve group, the motor stops running, and limits the stroke of the hook.
Through the implementation of the hydraulic limit structure, effective restrictions on the winch hook stroke is achieved, operating safety and work efficiency are improved, and the risk of hook touching or sinking into the water is avoided.
Smart Images
Figure CN222684134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic equipment, in particular to a hydraulic limiting structure for a winch. Background Art
[0002] A winch is a small and light lifting equipment that uses a drum to wind a wire rope or chain to lift or pull heavy objects. In some specific occasions, such as offshore platforms or ship cranes, if the operating distance is far or the visibility conditions are poor, the operator may not be able to observe or observe the position of the hook correctly. The hook may sink into the water when it is downward, and it may touch mechanical structures such as pulleys when it is upward, thereby damaging the crane or cargo and affecting the normal progress of the lifting work. Therefore, the existing winches have low working efficiency and great safety hazards during operation. Utility Model Content
[0003] The main technical problem solved by the utility model is to provide a hydraulic limiting structure for a winch, so as to solve the problems of unsafe operation and low working efficiency of the existing winch.
[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a hydraulic limiting structure for a winch, including a rotating component, a first trigger component, a second trigger component, a first control valve group and a second control valve group. The rotating component is used to connect the drum of the winch, and the rotating component can rotate with the drum. The first trigger component and the second trigger component are arranged on the rotating component, and the first trigger component and the second trigger component can rotate with the rotating component. The first control valve group and the second control valve group are both used to connect the motor of the winch. The first control valve group and the second control valve group are used to control the operation of the motor. When the first trigger component conflicts with the first control valve group or the second trigger component conflicts with the second control valve group, the motor stops running.
[0005] In some embodiments, the rotating assembly includes a worm, a worm wheel and a rotating shaft, one end of the worm is connected to the reel, the worm wheel is engaged with the worm, the rotating shaft passes through the middle of the worm wheel, the rotating shaft can rotate with the worm wheel, the first trigger member and the second trigger member are arranged on the rotating shaft, and the rotating shaft is used to drive the first trigger member and the second trigger member to rotate.
[0006] In some embodiments, two connecting members are sleeved on the rotating shaft, and the connecting members can rotate with the rotating shaft. The first trigger member and the second trigger member are respectively sleeved on a connecting member and connected to the connecting member through bolts.
[0007] In some embodiments, the connecting member includes a connecting portion and a sleeve portion, the sleeve portion is arranged at the end of the connecting portion, the diameter of the sleeve portion is smaller than the connecting portion, the first trigger member or the second trigger member is sleeved on the sleeve portion, the side of the first trigger member or the second trigger member is fitted with the connecting portion, and the first trigger member or the second trigger member is connected to the connecting portion through bolts.
[0008] In some embodiments, the first control valve group and the second control valve group both include a valve body, a valve core, an articulated rod and a pulley, the valve core portion is located in the valve body, the lower end of the valve core extends from the bottom of the valve body and abuts against the articulated rod; a hinged portion is provided at the bottom of the valve body, the front portion of the articulated rod is hinged to the hinged portion, and the pulley is provided at the rear end of the articulated rod, and the pulley is used to abut against the first trigger member or the second trigger member.
[0009] In some embodiments, the first control valve group and the second control valve group further include a limiter, which is disposed at the front end bottom of the valve body, and is used to abut against the front end of the hinged rod to limit the movement of the hinged rod.
[0010] In some embodiments, the hydraulic limiting structure also includes a mounting plate, a first mounting bracket and a second mounting bracket. The mounting plate is used to connect to the side wall of the winch, and the two first mounting brackets are symmetrically arranged on the upper part of the mounting plate. The first control valve group and the second control valve group are respectively arranged on a first mounting bracket; the second mounting bracket is arranged at the lower part of the mounting plate, and the second mounting bracket is used to support the rotating assembly.
[0011] In some embodiments, a mounting post is disposed at the back of the mounting plate, a screw hole is disposed on the mounting post, and the mounting post is used for screw connection with the winch.
[0012] The beneficial effects of the utility model are as follows: by connecting the rotating component to the drum of the winch, the first trigger member and the second trigger member are arranged on the rotating component, the first control valve group and the second control valve group are both connected to the motor of the winch, the first control valve group and the second control valve group are used to control the operation of the motor, when the winch drives the hook to move up and down, the drum of the winch rotates, the rotating component is connected to the drum, the rotating component also rotates accordingly, the first trigger member and the second trigger member are connected to the rotating component, the first trigger member and the second trigger member also rotate accordingly, before the hook touches other mechanical structures upwards, the first trigger member contacts the first control valve group, and the motor stops working; before the hook is immersed in the water downwards, the second trigger member contacts the second control valve group, and the motor also stops working, thereby achieving the limitation of the hook stroke, and the winch is safer and more efficient when working. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model when it is installed on a winch;
[0014] Figure 2 It is a structural schematic diagram of an embodiment of the utility model;
[0015] Figure 3 It is a structural schematic diagram of another perspective of an embodiment of the utility model;
[0016] Figure 4It is a structural schematic diagram of a mounting plate, a first mounting bracket and a second mounting bracket in one embodiment of the utility model;
[0017] Figure 5 This is a schematic diagram of the structure of the first control valve group in one embodiment of the utility model;
[0018] Figure 6 This is a schematic structural diagram of a rotating assembly according to an embodiment of the utility model;
[0019] Figure 7 It is a structural schematic diagram of a connecting piece according to an embodiment of the utility model. DETAILED DESCRIPTION
[0020] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0021] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.
[0022] For the description of the present utility model, non-limiting Figure 1 The marks "front", "rear", "up", "down", "left" and "right" shown in the figure are used to facilitate the understanding of the embodiment and are not intended to limit the present invention. Among them, the front-to-back direction represents the longitudinal direction, the left-to-right direction represents the transverse direction, and the up-down direction represents the vertical direction.
[0023] Figure 1-Figure 7 An embodiment of the hydraulic limiting structure of the utility model for a winch is shown, including a rotating component 1, a first trigger member 2, a second trigger member 3, a first control valve group 4 and a second control valve group 5. The rotating component 1 is used to connect the drum 61 of the winch 6, and the rotating component 1 can rotate with the drum 61. The first trigger member 2 and the second trigger member 3 are arranged on the rotating component 1. The first trigger member 2 and the second trigger member 3 can be cams. The first trigger member 2 and the second trigger member 3 can rotate with the rotating component 1. The first control valve group 4 and the second control valve group 5 are both used to connect the motor of the winch 6. The first control valve group 4 and the second control valve group 5 are used to control the operation of the motor. When the first trigger member 2 conflicts with the first control valve group 4 or the second trigger member 3 conflicts with the second control valve group 5, the motor stops running.
[0024] In the utility model, by connecting the rotating component 1 to the drum 61 of the winch 6, the first trigger member 2 and the second trigger member 3 are arranged on the rotating component 1, the first control valve group 4 and the second control valve group 5 are both connected to the motor of the winch 6, and the first control valve group 4 and the second control valve group 5 are used to control the operation of the motor. When the winch 6 drives the hook to move up and down, the drum 61 of the winch 6 rotates, the rotating component 1 is connected to the drum 61, and the rotating component 1 also rotates accordingly. The first trigger member 2 and the second trigger member 3 are connected to the rotating component 1, and the first trigger member 2 and the second trigger member 3 also rotate accordingly. Before the hook touches other mechanical structures upward, the first trigger member 2 contacts the first control valve group 4, and the motor stops working; before the hook is immersed in the water downward, the second trigger member 3 contacts the second control valve group 5, and the motor also stops working, thereby limiting the stroke of the hook, and the winch 6 is safer and more efficient when working.
[0025] The rotating assembly 1 can be rotated by a plurality of gear transmissions or by a worm gear transmission, as long as it can drive the first trigger member 2 and the second trigger member 3 to rotate.
[0026] In some embodiments, Figure 2 As shown, the rotating assembly 1 includes a worm 11, a worm wheel 12 and a rotating shaft 13. One end of the worm 11 is connected to the drum 61, the worm wheel 12 is meshed with the worm 11, the rotating shaft 13 is arranged in the middle of the worm wheel 12, and the rotating shaft 13 can rotate with the worm wheel 12. The first trigger member 2 and the second trigger member 3 are arranged on the rotating shaft 13, and the rotating shaft 13 is used to drive the first trigger member 2 and the second trigger member 3 to rotate. The worm 11 is connected to the drum 61, and the worm 11 rotates with the rotation of the drum 61. The worm 11 is meshed with the worm wheel 12, and then drives the worm wheel 12 to rotate. The rotating shaft 13 is arranged in the middle of the worm wheel 12, and the rotating shaft 13 also rotates with the worm wheel 12. The first trigger member 2 and the second trigger member 3 are arranged on the rotating shaft 13, and the first trigger member 2 and the second trigger member 3 also rotate with the rotating shaft 13. By adopting the transmission mode of the worm wheel 12 and the worm 11, the structure is more compact, the transmission ratio is larger, and it can be adapted to winches 6 of various strokes.
[0027] It should be noted that the positions of the first trigger member 2 and the second trigger member 3 and the speed ratio of the worm wheel 12 and the worm 11 need to be adjusted according to the required hook stroke, so that when the hook moves to the uppermost end of the stroke, the first trigger member 2 triggers the first control valve group 4 to operate; when the hook moves to the lowermost end of the stroke, the second trigger member 3 triggers the second control valve group 5 to operate, thereby ensuring the safety of the operation of the winch 6.
[0028] In some embodiments, Figure 6 and Figure 7As shown, two connecting members 14 are sleeved on the rotating shaft 13, and the two connecting members 14 are respectively located on both sides of the rotating shaft 13. The connecting members 14 can rotate with the rotating shaft 13. The first trigger member 2 and the second trigger member 3 are sleeved on a connecting member 14 respectively, and are connected to the connecting member 14 by bolts. By sleeved the first trigger member 2 and the second trigger member 3 on the connecting member 14, and connected to the connecting member 14 by bolts, the first trigger member 2 and the second trigger member 3 can be rotated after loosening and removing the bolts to adjust the position of the raised parts on the first trigger member 2 and the second trigger member 3. After the position is adjusted, the first trigger member 2 and the second trigger member 3 are fixed to the connecting member 14 by bolts, and the connecting member 14 rotates with the rotating shaft 13, and the first trigger member 2 and the second trigger member 3 rotate together with the connecting member 14. By setting the connecting member 14, the position of the first trigger member 2 and the second trigger member 3 can be adjusted, thereby enhancing the adaptability of the hydraulic limit structure.
[0029] In some embodiments, in combination Figure 6 and Figure 7 As shown, the connecting member 14 includes a connecting portion 141 and a sleeve portion 142. The sleeve portion 142 is arranged at the end of the connecting portion 141. The diameter of the sleeve portion 142 is smaller than that of the connecting portion 141. The first trigger member 2 or the second trigger member 3 is sleeved on the sleeve portion 142. The side of the first trigger member 2 or the second trigger member 3 fits with the connecting portion 141. The first trigger member 2 or the second trigger member 3 is connected to the connecting portion 141 through bolts. By sleeve-mounting the sleeve portion 142 on the rotating shaft 13, the first trigger member 2 and the second trigger member 3 are sleeved on the sleeve portion 142 again, and the side of the first trigger member 2 or the second trigger member 3 fits with the connecting portion 141 and is connected to the connecting portion 141 through bolts, so that the connection between the first trigger member 2 or the second trigger member 3 and the connecting member 14 is more reliable, and the rotation process is more stable.
[0030] In some embodiments, in combination Figure 2 and Figure 5As shown, the first control valve group 4 and the second control valve group 5 both include a valve body 41, a valve core 42, a hinged rod 43 and a pulley 44. The valve core 42 is partially located in the valve body 41, and the lower end of the valve core 42 extends out from the bottom of the valve body 41 and abuts against the hinged rod 43; a hinged portion 411 is provided at the bottom of the valve body 41, and the front part of the hinged rod 43 is hinged to the hinged portion 411, and the pulley 44 is provided at the rear end of the hinged rod 43, and the pulley 44 is used to abut against the first trigger member 2 or the second trigger member 3. When the first trigger member 2 or the second trigger member 3 conflicts with the pulley 44, a leftward or rightward pushing force can be applied to the pulley 44, and the pushing force is converted into a rotational force for the articulated rod 43 to rotate upward. After the articulated rod 43 rotates, it pushes the valve core 42 upward. After the valve core 42 is actuated, the oil supply to the motor can be cut off to stop the motor. At this time, the reel 61 no longer rotates, and the hook also stops in place accordingly, thereby limiting the stroke of the hook and being safer.
[0031] When the first trigger member 2 or the second trigger member 3 has not yet come into conflict with the pulley 44, the hinged rod 43 may rotate downward, causing the first trigger member 2 or the second trigger member 3 to no longer come into conflict with the pulley 44 when moving to the corresponding position, thereby failing to trigger the first control valve group 4 or the second control valve group 5.
[0032] In some embodiments, Figure 5 As shown, the first control valve group 4 and the second control valve group 5 further include a stopper 45, which can be a protrusion and is disposed at the front end bottom of the valve body 41. The stopper 45 is used to abut against the front end of the hinged rod 43 to limit the movement of the hinged rod 43. When the first trigger member 2 or the second trigger member 3 has not yet abutted against the pulley 44, the front end of the hinged rod 43 abuts against the stopper 45, which can limit the movement of the hinged rod 43 and prevent the hinged rod 43 from rotating downward, thereby ensuring that the first trigger member 2 and the second trigger member 3 can abut against the pulley 44.
[0033] In some embodiments, Figure 3 and Figure 4 As shown, the hydraulic limit structure also includes a mounting plate 7, a first mounting bracket 8 and a second mounting bracket 9. The mounting plate 7 is used to connect with the side wall of the winch 6. The middle of the mounting plate 7 is also provided with an axial hole 72 for the worm 11 to extend out. Two first mounting brackets 8 are symmetrically arranged on the upper part of the mounting plate 7. The first control valve group 4 and the second control valve group 5 are respectively arranged on a first mounting bracket 8; the second mounting bracket 9 is arranged at the lower part of the mounting plate 7, and the second mounting bracket 9 is used to support the rotating assembly 1. By arranging the first control valve group 4 and the second control valve group 5 on the first mounting bracket 8 and using the second mounting bracket 9 to support the rotating assembly 1, the hydraulic limit structure is made more compact. When installing, the mounting plate 7 can be fixed to the side wall of the winch 6, which is more convenient.
[0034] It should be noted that the second mounting bracket 9 can support the rotating assembly 1 by mounting a bearing, which will not be described in detail here.
[0035] In some embodiments, Figure 3 As shown, a mounting post 71 is provided on the back of the mounting plate 7, and a screw hole 711 is provided on the mounting post 71, and the mounting post 71 is used to be screwed with the winch 6. By providing the mounting post 71, the connection between the hydraulic limit structure and the winch 6 is facilitated, and maintenance and replacement are also faster.
[0036] It can be seen that the utility model discloses a hydraulic limiting structure for a winch, which connects the rotating component to the drum of the winch, and the first trigger member and the second trigger member are arranged on the rotating component. The first control valve group and the second control valve group are both connected to the motor of the winch. The first control valve group and the second control valve group are used to control the operation of the motor. When the winch drives the hook to move up and down, the drum of the winch rotates, the rotating component is connected to the drum, and the rotating component also rotates accordingly. The first trigger member and the second trigger member are connected to the rotating component, and the first trigger member and the second trigger member also rotate accordingly. Before the hook touches other mechanical structures upward, the first trigger member contacts the first control valve group, and the motor stops working; before the hook is immersed in the water downward, the second trigger member contacts the second control valve group, and the motor also stops working, thereby limiting the stroke of the hook, making the winch safer and more efficient when working.
[0037] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A hydraulic limiting structure for a winch, characterized in that: It includes a rotating component, a first trigger member, a second trigger member, a first control valve group and a second control valve group. The rotating component is used to connect to the drum of the winch, and the rotating component can rotate with the drum. The first trigger member and the second trigger member are arranged on the rotating component, and the first trigger member and the second trigger member can rotate with the rotating component. The first control valve group and the second control valve group are both used to connect to the motor of the winch. The first control valve group and the second control valve group are used to control the operation of the motor. When the first trigger member conflicts with the first control valve group or the second trigger member conflicts with the second control valve group, the motor stops running.
2. The hydraulic limiting structure for winch according to claim 1, characterized in that: The rotating assembly includes a worm, a worm wheel and a rotating shaft, one end of the worm is connected to the reel, the worm wheel is meshed with the worm, the rotating shaft passes through the middle of the worm wheel, the rotating shaft can rotate with the worm wheel, the first trigger member and the second trigger member are arranged on the rotating shaft, and the rotating shaft is used to drive the first trigger member and the second trigger member to rotate.
3. The hydraulic limiting structure for winch according to claim 2, characterized in that: The rotating shaft is sleeved with two connecting members, and the connecting members can rotate with the rotating shaft. The first trigger member and the second trigger member are respectively sleeved on one of the connecting members and connected to the connecting members through bolts.
4. The hydraulic limiting structure for winch according to claim 3, characterized in that: The connecting member includes a connecting portion and a sleeve portion, wherein the sleeve portion is arranged at the end of the connecting portion, and the diameter of the sleeve portion is smaller than the connecting portion. The first trigger member or the second trigger member is sleeved on the sleeve portion, and the side of the first trigger member or the second trigger member is fitted with the connecting portion. The first trigger member or the second trigger member is connected to the connecting portion through bolts.
5. The hydraulic limiting structure for winch according to claim 1, characterized in that: The first control valve group and the second control valve group each include a valve body, a valve core, an articulated rod and a pulley, wherein the valve core portion is located within the valve body, and the lower end of the valve core extends from the bottom of the valve body and abuts against the articulated rod; a hinged portion is provided at the bottom of the valve body, and the front portion of the articulated rod is hinged to the articulated portion, and the pulley is provided at the rear end of the articulated rod, and the pulley is used to abut against the first trigger member or the second trigger member.
6. The hydraulic limiting structure for winch according to claim 5, characterized in that: The first control valve group and the second control valve group further include a limiter, which is disposed at the front end bottom of the valve body and is used to abut against the front end of the hinge rod to limit the movement of the hinge rod.
7. The hydraulic limiting structure for winch according to claim 1, characterized in that: The hydraulic limiting structure also includes a mounting plate, a first mounting bracket and a second mounting bracket. The mounting plate is used to be connected to the side wall of the winch, and the two first mounting brackets are symmetrically arranged on the upper part of the mounting plate. The first control valve group and the second control valve group are respectively arranged on one of the first mounting brackets; the second mounting bracket is arranged at the lower part of the mounting plate, and the second mounting bracket is used to support the rotating assembly.
8. The hydraulic limiting structure for winch according to claim 7, characterized in that: The back of the mounting plate is provided with a mounting column, on which a screw hole is provided, and the mounting column is used for screw connection with the winch.