One-way damper for winding roll
By designing a one-way damper for the reel disc, the damping member provides damping to the inner shell is used to solve the problem of cable irregularity or disorder caused by the inertia rotation of the disc during sudden braking, and smooth wire retraction and release and damping effect.
Patent Information
- Application Number
- CN202411723299.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-02-14
AI Technical Summary
When the unidirectional damper of the reel disc is braked suddenly, the coil will continue to rotate by its own inertial force, which will cause the wire to be retracted or released too quickly, resulting in cable irregularity or cable disorder.
A one-way damper including a first housing, a second housing, an inner housing, a ratchet, a pawl, a mounting member and a damping member is designed. The damping member provides damping to the inner shell. When the shaft of the reel rotates clockwise, the pawl meshes with the ratchet, driving the inner shell to rotate and generate a damping effect, avoiding the inertia rotation of the disc during sudden braking.
It achieves smooth retraction or release of lines when rotating the axis in one direction, and damping effect when retraction or release of lines in the other direction, avoiding cable irregularities or cable disorders caused by factors such as inertia.
Smart Images
Figure CN119435636A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of automation equipment, and in particular to a one-way damper for a cable reel. Background Art
[0002] Rotating devices with damping are usually traditional two-way dampers, or they use electromagnetic methods to achieve one-way damping. The application scenarios of these two methods are also different. Two-way dampers can achieve stopping at any position, such as doors and hinges. When the resistance is greater than the resistance generated, they will fail. If they are used in the field of automation equipment for continuous rotation, their lifespan is often short. Electromagnetic dampers are often used in complex and large-space scenarios, and can also be used for braking.
[0003] The above two methods are not applicable to the application of cable reel winding and unwinding. For the one-way damper of the cable reel, when winding the line, the damper has no resistance and can rotate freely to achieve easy winding. When unwinding the line, the damper generates resistance. Since a large inertia force is generated as the reel rotates when winding or unwinding, if the brakes are applied suddenly, the reel will continue to rotate due to its own inertia force, which will cause the cable to be wound or unwound too quickly, resulting in uneven or disordered cables. Summary of the invention
[0004] The object of the present invention is to provide a one-way damper for a cable reel, which solves the problem that when the one-way damper of the cable reel is braked suddenly, the cable reel will continue to rotate due to its own inertia, which will cause the cable to be reeled in or out too quickly and cause uneven or disordered cables.
[0005] To achieve the above-mentioned purpose, the present invention provides a one-way damper for a cable reel, comprising a first shell, a second shell, an inner shell, a ratchet, a pawl, a mounting member and a damping member, the second shell being fixedly mounted on the first shell by a first bolt, the inner shell being rotatably connected to the first shell and the second shell, respectively, and being located inside the second shell, the ratchet being rotatably mounted inside the inner shell, the mounting member being arranged on the inner shell, the pawl being connected to the inner shell via the mounting member, and the damping member being arranged between the second shell and the inner shell, and providing damping to the inner shell.
[0006] Wherein, the ratchet has a mounting through slot, and the mounting through slot is arranged at the center position of the ratchet and passes through the ratchet.
[0007] Among them, the inner shell includes a follower shell and a panel, the follower shell is rotatably connected to the second shell through a first bearing, and is rotatably connected to the ratchet through a second bearing; the panel is fixedly connected to the follower shell, and is rotatably connected to the first shell through a third bearing, and is rotatably connected to the ratchet through a fourth bearing.
[0008] Wherein, the mounting component includes a spring pressure plate and a pawl spring, the spring pressure plate is fixedly connected to the follower housing through a second bolt and is located on the outside of the follower housing; the two ends of the pawl spring are respectively connected to the spring pressure plate and the pawl, and the pawl spring is arranged on the follower housing.
[0009] Wherein, the one-way damper for the cable reel also includes a pin shaft, the panel has a pin shaft hole, the pin shaft is connected to the follower housing, and passes through the follower housing and extends into the pin shaft hole on the panel.
[0010] Wherein, the damping component includes a fixed friction plate and a follower friction plate, the follower friction plate is connected to the pin shaft and the follower housing, and is sleeved on the pin shaft; the fixed friction plate is connected to the second housing, abuts against the follower friction plate, and is located inside the second housing.
[0011] Wherein, the damping component further includes a compression spring, two ends of which are respectively in contact with the second housing and the fixed friction plate, and the compression spring is located inside the second housing.
[0012] The one-way damper for a cable reel of the present invention is used, when in use, the shaft of the cable reel is connected to the ratchet, and the first housing is fixedly installed on another fixed plane by bolts, when the shaft of the cable reel rotates counterclockwise, the ratchet is driven to rotate counterclockwise, at this time the pawl does not hinder the rotation of the ratchet, so that the ratchet can rotate counterclockwise, at this time the rotation of the ratchet does not need to overcome the damping applied by the damping component; when the shaft of the cable reel rotates clockwise, the ratchet is driven to rotate clockwise, at this time the pawl and the damping component are connected. The ratchet is engaged, and there is no relative movement between the ratchet and the pawl after full engagement. At this time, the ratchet drives the pawl to rotate clockwise at the same time, thereby driving the inner shell to rotate synchronously, and the damping component provides damping to the rotation of the inner shell, so that the shaft of the cable reel generates damping when it rotates clockwise, thereby achieving smooth winding or releasing of the line when the shaft rotates in one direction, and a damping effect when winding or releasing the line in the other direction. The one-way damping avoids the occurrence of uneven cables or cable disorder due to factors such as inertia that cause the line to be wound or released too quickly. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0014] Figure 1 It is a schematic diagram of the overall structure of the one-way damper for the cable reel of the present invention.
[0015] Figure 2It is a schematic diagram of the overall structure of the one-way damper for the cable reel of the present invention from another angle.
[0016] Figure 3 It is a schematic diagram of the installation structure of the ratchet of the present invention.
[0017] Figure 4 It is a front view of the ratchet of the present invention.
[0018] Figure 5 It is a left side view of a ratchet of the present invention.
[0019] Figure 6 It is a cross-sectional view of a one-way damper for a cable reel according to the present invention.
[0020] Figure 7 1 is an exploded view of a one-way damper for a cable reel according to the present invention.
[0021] In the figure: 101-first housing, 102-second housing, 103-inner housing, 104-ratchet, 105-pawl, 106-mounting member, 107-damping member, 108-first bolt, 109-mounting slot, 110-follow-up housing, 111-panel, 112-first bearing, 113-second bearing, 114-third bearing, 115-fourth bearing, 116-spring pressure plate, 117-pawl spring, 118-second bolt, 119-pin shaft, 120-fixed friction plate, 121-follow-up friction plate, 122-compression spring. DETAILED DESCRIPTION
[0022] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.
[0023] See also Figures 1 to 7 ,in Figure 1 This is a schematic diagram of the overall structure of a one-way damper for a cable reel. Figure 2 This is another schematic diagram of the overall structure of the one-way damper used for the cable reel. Figure 3 This is a schematic diagram of the installation structure of the ratchet. Figure 4 This is the front view of the ratchet. Figure 5 This is the left side view of the ratchet. Figure 6 is a cross-sectional view of a one-way damper for a cable reel. Figure 7 is an exploded view of a one-way damper for a cable reel.
[0024] The present invention provides a one-way damper for a cable reel, comprising a first shell 101, a second shell 102, an inner shell 103, a ratchet 104, a pawl 105, a mounting member 106 and a damping member 107, wherein the damping member 107 provides damping for the rotation of the inner shell 103, and when the ratchet 104 rotates clockwise, it drives the pawl 105 and the inner shell 103 to rotate, so that the rotation of the inner shell 103 is damped, and when the ratchet 104 rotates counterclockwise, the pawl 105 does not hinder the rotation of the ratchet 104, and at this time, the rotation of the ratchet 104 is not affected by the damping effect. It can be understood that the above scheme can be used in the reel to avoid uneven or disordered cables, and can also be used to provide damping to the inner shell 103.
[0025] According to the present specific embodiment, the second housing 102 is fixedly mounted on the first housing 101 by means of a first bolt 108, the inner housing 103 is rotatably connected to the first housing 101 and the second housing 102 respectively, and is located inside the second housing 102, the ratchet 104 is rotatably mounted inside the inner housing 103, the mounting member 106 is disposed on the inner housing 103, the ratchet 105 is connected to the inner housing 103 by means of the mounting member 106, the damping member 107 is disposed between the second housing 102 and the inner housing 103, and is disposed toward the inner housing 103. The first housing 101 is provided with bolt holes, which facilitates the installation of the first housing 101. The first housing 101 and the second housing 102 can change their appearance structures according to work requirements and external environment to adapt to different working environments, provide support for the ratchet 104, the pawl 105 and the damping member 107 to ensure stable rotation. The second housing 102 is installed on the second housing 102 by four first bolts 108. The mounting member 106 provides elasticity to the pawl 105 so that the pawl 105 can abut against the The ratchet 104; when in use, the shaft of the cable reel is connected to the ratchet 104, and the first housing 101 is fixedly installed at different positions of the mechanical structure or other required positions by bolts. When the shaft of the cable reel rotates counterclockwise, the ratchet 104 is driven to rotate counterclockwise. At this time, the pawl 105 does not hinder the rotation of the ratchet 104, so that the ratchet 104 can rotate counterclockwise. At this time, the rotation of the ratchet 104 does not need to overcome the damping applied by the damping member 107; when the shaft of the cable reel rotates clockwise, the ratchet 104 is driven to rotate clockwise. At this time, the pawl 105 5 is meshed with the ratchet wheel 104. After the ratchet wheel 104 and the pawl 105 are fully meshed, there is no relative movement between them. At this time, the ratchet wheel 104 drives the pawl 105 to rotate clockwise at the same time, thereby driving the inner shell 103 to rotate synchronously. The damping member 107 provides damping to the rotation of the inner shell 103, thereby causing the shaft of the cable reel to generate damping when rotating clockwise, thereby achieving smooth winding or releasing of the line when the shaft rotates in one direction, and a damping effect when winding or releasing the line in the other direction. The one-way damping avoids the situation that the cable is not aligned or the cable is disordered due to factors such as inertia that the cable is wound or released too quickly.
[0026] Among them, the installation slot 109 is arranged at the center position of the ratchet 104 and passes through the ratchet 104; the installation slot 109 is arranged in a polygonal shape, and the axis of the winding reel is also a polygon, so that when the ratchet 104 is connected to the axis of the winding reel, slippage between the axis and the ratchet 104 can be avoided.
[0027] Secondly, the follower housing 110 is rotationally connected to the second housing 102 through the first bearing 112, and is rotationally connected to the ratchet 104 through the second bearing 113; the panel 111 is fixedly connected to the follower housing 110, and is rotationally connected to the first housing 101 through the third bearing 114, and is rotationally connected to the ratchet 104 through the fourth bearing 115; the follower housing 110 and the panel 111 are fixedly connected by bolts, which makes it convenient to open the inner housing 103 and install its internal components. At the same time, the first bearing 112 and the third bearing 114 ensure the smoothness of the rotation of the inner housing 103, and the second bearing 113 and the fourth bearing 115 ensure the smoothness of the rotation of the ratchet 104.
[0028] At the same time, the spring pressure plate 116 is fixedly connected to the follower housing 110 through a second bolt 118 and is located on the outside of the follower housing 110; the two ends of the pawl spring 117 are respectively connected to the spring pressure plate 116 and the pawl 105, and the pawl spring 117 is arranged on the follower housing 110; the spring pressure plate 116 is installed by the second bolt 118, and a through hole is arranged on the follower housing 110, and the pawl spring 117 is installed in this through hole, and the two ends are respectively connected to the spring pressure plate 116 and the ratchet 104, and a force is applied to the pawl 105 through the pawl spring 117, so that the pawl 105 can abut against the ratchet 104.
[0029] In addition, the panel 111 has a pin hole, the pin 119 is connected to the follower housing 110, and passes through the follower housing 110 and extends into the pin hole on the panel 111; three pins 119 are provided, and the follower housing 110 has a hole opened along a 120-degree direction to connect the three pins 119, and the three pins 119 extend into the pin holes on the panel 111, thereby improving the stability between the panel 111 and the follower housing 110, and at the same time, the pawl 105 is sleeved on one of the pins 119, and the pawl 105 is installed through the pin 119 so that it can rotate inside the follower housing 110.
[0030] Then, the follower friction plate 121 is connected to the pin shaft 119, and is connected to the follower housing 110, and is sleeved on the pin shaft 119; the fixed friction plate 120 is connected to the second housing 102, and is in contact with the follower friction plate 121, and is located inside the second housing 102; the fixed friction plate 120 is an irregular polygon, so as to ensure that the fixed friction plate 120 and the second housing 102 will not rotate, and the follower friction plate 121 is provided with three through holes, through which the three pins are passed. The shaft 119 is installed with the follower friction plate 121, so that the follower friction plate 121 is in close contact with the follower housing 110 and rotates synchronously with the follower housing 110. The follower friction plate 121 is fully fitted with the fixed friction plate 120, and there is friction between the two. When the inner housing 103 rotates, it drives the pin shaft 119 and the follower friction plate 121 to rotate. The friction between the fixed friction plate 120 and the follower friction plate 121 provides damping, so that the inner housing 103 is damped when it rotates.
[0031] Finally, the two ends of the compression spring 122 are respectively in contact with the second shell 102 and the fixed friction plate 120, and the compression spring 122 is located inside the second shell 102; there are a plurality of compression springs 122, and force is applied to the fixed friction plate 120 by the compression springs 122, so that the fixed friction plate 120 and the follower friction plate 121 are tightly fitted, and at the same time, the pressure between the fixed friction plate 120 and the follower friction plate 121 can be changed by changing the compression springs 122 with different stiffness coefficients or using different numbers of compression springs 122 to achieve different one-way damping effects.
[0032] When the one-way damper for the cable reel of the present invention is used, the shaft of the cable reel is connected to the mounting through slot 109 on the ratchet 104. When the cable reel rotates counterclockwise, the shaft drives the ratchet 104 to rotate counterclockwise. At this time, the pawl 105 does not hinder the rotation of the ratchet 104, so that the ratchet 104 rotates in the inner shell 103. At this time, the damping member 107 does not function, so that the cable reel can rotate without damping; when the cable reel rotates clockwise, it drives the ratchet 104 to rotate clockwise. At this time, the ratchet 104 engages with the pawl 105, thereby driving the pawl 105, the pin 119, and the follower 107 to rotate clockwise. The movable housing 110 and the follower friction plate 121 rotate synchronously, and at this time, the fixed friction plate 120 and the contact points of the follower friction plate 121 move relative to each other, generating sliding friction, thereby achieving a one-way damping effect. The one-way damper for the cable reel of the present invention has a simpler and more compact mechanical structure and saves space; it can overcome inertia force, torque and other rotational forces in one direction, while the other direction is not affected by the force; at the same time, it adopts a traditional mechanical mechanism, making it more stable and reliable; and it is easy to operate, with controllable resistance, and the damping size can be adjusted at any time, thereby avoiding uneven cables or cable disorder caused by excessive winding or unwinding due to inertia and other factors during the use of the cable reel.
[0033] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.
Claims
1. A one-way damper for a cable reel, characterized in that: The invention comprises a first shell, a second shell, an inner shell, a ratchet, a pawl, a mounting member and a damping member, wherein the second shell is fixedly mounted on the first shell by a first bolt, the inner shell is rotatably connected to the first shell and the second shell respectively and is located inside the second shell, the ratchet is rotatably mounted inside the inner shell, the mounting member is arranged on the inner shell, the pawl is connected to the inner shell by the mounting member, and the damping member is arranged between the second shell and the inner shell and provides damping to the inner shell.
2. The one-way damper for a cable reel according to claim 1, characterized in that: The ratchet has a mounting through slot, which is arranged at the center of the ratchet and passes through the ratchet.
3. The one-way damper for a cable reel according to claim 1, characterized in that: The inner shell includes a follower shell and a panel, the follower shell is rotatably connected to the second shell through a first bearing, and is rotatably connected to the ratchet through a second bearing; the panel is fixedly connected to the follower shell, and is rotatably connected to the first shell through a third bearing, and is rotatably connected to the ratchet through a fourth bearing.
4. The one-way damper for a cable reel according to claim 3, characterized in that: The mounting component includes a spring pressure plate and a pawl spring. The spring pressure plate is fixedly connected to the follower housing through a second bolt and is located on the outside of the follower housing. The two ends of the pawl spring are respectively connected to the spring pressure plate and the pawl. The pawl spring is arranged on the follower housing.
5. The one-way damper for a cable reel according to claim 4, characterized in that: The one-way damper for the cable reel also includes a pin shaft, the panel has a pin shaft hole, the pin shaft is connected to the follower housing, and penetrates the follower housing and extends into the pin shaft hole on the panel.
6. The one-way damper for a cable reel according to claim 5, characterized in that: The damping component includes a fixed friction plate and a follower friction plate. The follower friction plate is connected to the pin shaft and the follower housing and is sleeved on the pin shaft. The fixed friction plate is connected to the second housing and abuts against the follower friction plate and is located inside the second housing.
7. The one-way damper for a cable reel according to claim 6, characterized in that: The damping component further includes a compression spring, two ends of which are respectively in contact with the second housing and the fixed friction plate, and the compression spring is located inside the second housing.