One-way damper for winding roll

Abstract

The utility model relates to the field of automation equipment, in particular to a one-way damper for a winding roll, which comprises a first shell, a second shell, an inner shell, a ratchet wheel, a pawl, a mounting component and a damping component, when a shaft of the winding roll rotates anticlockwise, the ratchet wheel is driven to rotate anticlockwise, at the moment, the pawl does not hinder the rotation of the ratchet wheel, so that the ratchet wheel can rotate anticlockwise; rotation of the ratchet does not need to overcome damping applied by the damping component; when the shaft of the winding roll rotates clockwise to drive the ratchet wheel to rotate clockwise, the pawl is meshed with the ratchet wheel at the moment, the ratchet wheel and the pawl which are completely meshed do not move relatively, the ratchet wheel drives the pawl to rotate clockwise at the same time at the moment, then the inner shell is driven to rotate synchronously, and damping is provided for rotation of the inner shell through the damping component. Therefore, damping is generated when the shaft of the winding roll rotates clockwise.

Description

Technical Field

[0001] The utility model relates to the field of automation equipment, in particular to a one-way damper for a cable reel. Background Art

[0002] Rotating devices with damping are typically either traditional bidirectional dampers or unidirectional dampers that utilize electromagnetic technology. These two methods have different application scenarios. Bidirectional dampers can achieve a stop at any position, such as doors and hinges, but fail when the resistance generated exceeds the resistance. Continuous use in automated equipment often results in a shorter lifespan. Electromagnetic dampers, on the other hand, are often used in complex, spacious environments 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, which will cause the cable to be wound or unwound too quickly and cause uneven or tangled cables. Utility Model Content

[0004] The purpose of the utility model 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 suddenly braked, the cable reel will continue to rotate due to its own inertia, which will cause the cable to be wound or unwound too quickly and cause the cable to be uneven or tangled.

[0005] To achieve the above-mentioned objectives, the utility model 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 through 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, which is arranged at the center of the ratchet and passes through the ratchet.

[0007] In which, 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 further 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] In which, 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 utility model discloses a one-way damper for a cable reel. When in use, the shaft of the cable reel is connected to the ratchet wheel, and the first housing is fixedly mounted on another fixed plane by means of bolts. When the shaft of the cable reel rotates counterclockwise, the ratchet wheel is driven to rotate counterclockwise. At this time, the pawl does not hinder the rotation of the ratchet wheel, so that the ratchet wheel can rotate counterclockwise. At this time, the rotation of the ratchet wheel does not need to overcome the damping applied by the damping component. When the shaft of the cable reel rotates clockwise, the ratchet wheel is driven to rotate clockwise. At this time, the pawl and the ratchet wheel 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. The damping component provides damping to the rotation of the inner shell, 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 occurrence of cable misalignment 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[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 2 This 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 utility model.

[0017] Figure 4 It is a front view of the ratchet of the present utility model.

[0018] Figure 5 It is a left side view of the ratchet of the present utility model.

[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 It is an exploded view of the one-way damper for a cable reel of 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] The embodiments of the present invention are described in detail below, and 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 understood 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 perspective 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 main view of the ratchet. Figure 5 This is the left side view of the ratchet. Figure 6 This is a cross-sectional view of a one-way damper for a cable reel. Figure 7 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 to the rotation of the inner shell 103. 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. When the ratchet 104 rotates counterclockwise, the pawl 105 does not hinder the rotation of the ratchet 104. 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 this specific embodiment, the second housing 102 is fixedly mounted on the first housing 101 by 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 provided on the inner housing 103, the pawl 105 is connected to the inner housing 103 through the mounting member 106, the damping member 107 is provided between the second housing 102 and the inner housing 103, and is provided to the inner housing 103. The first housing 101 is provided with bolt holes, which makes it easy to install the first housing 101. The first housing 101 and the second housing 102 can change their external 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 does not hinder the rotation of the ratchet 104, so that the ratchet 104 can rotate counterclockwise. 5 is engaged with the ratchet 104. After the ratchet 104 and the pawl 105 are fully engaged, there is no relative movement between them. At this time, the ratchet 104 drives the pawl 105 to rotate clockwise at the same time, thereby driving the inner housing 103 to rotate synchronously. The damping member 107 provides damping to the rotation of the inner housing 103, thereby generating damping when the shaft of the cable reel rotates clockwise, thereby achieving smooth winding or releasing of the line when the shaft rotates in one direction, and a damping effect when the shaft rotates in the other direction. The one-way damping avoids the occurrence of uneven or tangled cables due to factors such as inertia that cause the line to be wound or released too quickly.

[0026] Among them, the mounting slot 109 is arranged at the center position of the ratchet 104 and passes through the ratchet 104; the mounting slot 109 is set to 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 a first bearing 112, and is rotationally connected to the ratchet 104 through a second bearing 113; the panel 111 is fixedly connected to the follower housing 110, and is rotationally connected to the first housing 101 through a third bearing 114, and is rotationally connected to the ratchet 104 through a 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 by 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; it is installed on the spring pressure plate 116 by the second bolt 118, and a through hole is provided 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 the pawl spring 117 applies force to the pawl 105 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; there are three pins 119, 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 following friction plate 121 is connected to the pin shaft 119, and is connected to the following 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 following friction plate 121, and is located inside the second housing 102; the fixed friction plate 120 is an irregular polygon, which ensures that the fixed friction plate 120 and the second housing 102 will not rotate. The following friction plate 121 is provided with three through holes, which are passed through the three pins. 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 several compression springs 122, and force is applied to the fixed friction plate 120 by the compression spring 122, so that the fixed friction plate 120 and the follower friction plate 121 are tightly fitted. At the same time, by changing the compression spring 122 with different spring coefficients or using different numbers of the compression springs 122, the pressure between the fixed friction plate 120 and the follower friction plate 121 can be changed 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 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, and then drives the pawl 105, the pin 119, the follower The moving housing 110 and the following friction plate 121 rotate synchronously. At this time, the contact points of the fixed friction plate 120 and the following friction plate 121 undergo relative motion, generating sliding friction, thereby achieving a one-way damping effect. The mechanical structure of the one-way damper for the cable reel of the utility model is simpler, more compact, 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 simple to operate, the resistance is controllable, and the damping size can be adjusted at any time, so as to avoid uneven cables or cable disorder caused by factors such as inertia during use of the cable reel that cause the cable to be wound or unwound too quickly.

[0033] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of 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. 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 through the mounting member. 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, wherein: 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, wherein: 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, 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. The pawl spring is arranged on the follower housing.

5. The one-way damper for a cable reel according to claim 4, wherein: The one-way damper for the cable reel further comprises a pin shaft, the panel has a pin shaft hole, the pin shaft is connected to the follower housing, passes through 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, 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.

7. The one-way damper for a cable reel according to claim 6, 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.

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