Automatic transmission assembly and capstan

Abstract

The application provides an automatic speed change assembly and a capstan. The automatic speed change assembly can directly transmit power when the load is small, the transmission ratio is 1, and higher efficiency is obtained under the premise of meeting power performance. When the load is large, the automatic speed change assembly can change transmission, maximally realize speed reduction and torque increase, and meet work requirements. The automatic speed change assembly and the capstan with the automatic speed change function can realize the automatic speed change function without using any electric control elements, and have good reliability.

Description

Technical Field

[0001] This invention relates to the field of transmission or traction equipment, specifically to an automatic speed change assembly and a winch with automatic speed change function. Background Technology

[0002] A winch is a machine that uses a power device such as a human, electric motor, or hydraulic motor to drive a drum through a gear mechanism, and winds a steel wire rope or nylon rope onto the drum to complete a traction operation. Winches are commonly used in construction sites, ship docks, vehicle towing, fire rescue, and other fields.

[0003] Most existing winches do not have speed-changing function, and the few that do require manual or remote operation to achieve the speed-changing effect, which is relatively inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to at least partially overcome the deficiencies of the prior art and provide an automatic transmission component that can adaptively adjust the transmission ratio according to different loads, thereby automatically changing speed.

[0005] The present invention also aims to provide a winch with automatic speed change function, which can operate with a small transmission ratio when the load is small to quickly wind up or unwind the rope and improve efficiency, and automatically switch to a large transmission ratio when the load is large to meet the load requirements.

[0006] To achieve the above-mentioned objectives or one of them, the technical solution of the present invention is as follows: An automatic transmission assembly includes: a planetary gear set, a one-way clutch, a fixed member, and a load-limiting clutch; the planetary gear set includes a sun gear, a ring gear, and a planet carrier; the one-way clutch is disposed between an element of the planetary gear set and the fixed member; the load-limiting clutch is disposed within the planetary gear set.

[0007] An automatic transmission assembly includes: a planetary gear set, an electromagnetic lock, a fixing member, and a load-limiting clutch; the planetary gear set includes a sun gear, a ring gear, and a planet carrier; the electromagnetic lock is disposed between an element of the planetary gear set and the fixing member, and is configured to lock the element of the planetary gear set to the fixing member; the load-limiting clutch is disposed in the planetary gear set.

[0008] According to a preferred embodiment of the present invention, the load-limiting clutch includes a friction element that is frictionally connected to the ring gear and / or the sun gear.

[0009] According to a preferred embodiment of the present invention, the load-limiting clutch includes a friction element that is frictionally connected to the gear ring and / or the planetary carrier.

[0010] According to a preferred embodiment of the present invention, the load-limiting clutch includes a friction element that is frictionally connected to the planet carrier and / or the sun gear.

[0011] According to a preferred embodiment of the present invention, the load-limiting clutch is a friction clutch and is disposed between the components of the planetary gear set.

[0012] According to a preferred embodiment of the present invention, the fastener includes a housing that is fixedly installed, and parts that are directly or indirectly fixedly connected to the housing.

[0013] An automatic transmission winch includes an automatic transmission assembly as described in any one of claims 1-6, and further includes an actuating device, a transmission element, a drum, a braking assembly, and a housing; the actuating device provides power, which is transmitted to the drum via the transmission element and the automatic transmission assembly; the braking assembly is capable of braking the drum when required for operation; the housing provides overall mounting support and protection.

[0014] The automatic transmission assembly and winch with automatic transmission function of the present invention have the following advantages: The automatic transmission component of this invention has an automatic transmission function, which can automatically adjust the transmission ratio according to the load changes on the power output element. When applied to a winch, it becomes a winch with automatic transmission function. When the winch is unloaded or lightly loaded with rope, it automatically operates in a small transmission ratio mode to achieve fast rope winding and improve efficiency. When the load is released or wound and the load exceeds a certain limit, it automatically operates in a large transmission ratio to meet the working requirements of heavy load.

[0015] The gear ratio can be changed automatically based on the load size, without the need for additional manual operation or electronic control. The automatic speed change function has no impact on the use or operation of the winch, nor does it affect the winch's working process, such as the adaptive braking of the drum. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment of the automatic transmission component of the present invention; Figure 2 This is a schematic diagram of a second embodiment of the automatic transmission component of the present invention; Figure 3 This is a schematic diagram of a third embodiment of the automatic transmission component of the present invention; Figure 4 This is a schematic diagram of an embodiment of the automatic speed-changing winch of the present invention; Detailed Implementation

[0017] Exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements. Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the drawings.

[0018] like Figure 1 As shown, the automatic transmission assembly includes a housing 100, a one-way clutch 200, and a planetary gear set including a ring gear 300, a planet carrier 600, and planetary gears 500. A friction element 400 is disposed between the ring gear 300 and the planet carrier 600, fixedly connected to the ring gear 300, and frictionally connected to the planet carrier 600. The one-way clutch 200 is disposed between the ring gear 300 and the housing 100, allowing the ring gear 300 to rotate only in one direction. Preferably, the friction element 400 is made of an elastic friction material such as rubber.

[0019] Figure 2 This is a second embodiment of the automatic transmission component in the present invention. The difference from the first embodiment is that the friction element is fixedly connected to the sun gear 700 and frictionally connected to the gear ring 300. Figure 3 This is Embodiment 3 of the automatic transmission component in the present invention. The difference from Embodiment 1 is that the load-limiting clutch adopts a friction clutch, as shown in the figure. It is a plate friction clutch 400 without a control mechanism and is located between the planetary carrier 600 and the gear ring 300.

[0020] Figure 4 The image shows an automatic speed-changing winch of the present invention, in which the automatic speed-changing component of the present invention is included in the gear speed-changing mechanism of the winch, thereby having the function of automatic speed changing.

[0021] The following is in conjunction with the appendix Figure 1 The working process of the automatic transmission component of the present invention is described as follows: In the planetary gear set, the sun gear (not shown in the figure) is the power input component, meshing with planetary gear 500, and the planet carrier 600 is the power output component. The ring gear 300 is mounted on the housing 100 via a one-way clutch 200. The load-limiting clutch, i.e., the friction element 400, is fixedly connected to the ring gear 300 and frictionally connected to the planet carrier 600. Under no-load or light-load conditions, when the sun gear rotates clockwise, the planetary gear set rotates as a whole without changing speed because the friction element 400 connects the ring gear 300 and the planet carrier 600, while the one-way clutch 200 allows the ring gear 300 to rotate clockwise. When the load on the planet carrier 600 exceeds a certain value, the load-limiting clutch disengages, meaning there is relative movement between the friction element 400 and the planet carrier 600. Under the action of force, the ring gear 300 is fixed by the one-way clutch 200, resulting in a speed change.

[0022] In Embodiment 2, the power input and output components are the same as in Embodiment 1. The gear ring 300 is also mounted on the housing 100 via a one-way clutch 200 (not shown in the figure). The friction element 400 is fixedly mounted on the sun gear 700 and frictionally connected to the gear ring 300. When there is no load or a light load, the one-way clutch 200 disengages, and the planetary gear set rotates as a whole without changing speed. When the load exceeds a certain value, the force in the gear mechanism causes the one-way clutch 200 to engage, the load-limiting clutch 400 to disengage, and the planetary gear set to change speed.

[0023] Example 3 is basically the same as Example 1, except that the friction component 400 is replaced by a plate friction clutch 400. The working process is also the same. When lightly loaded or unloaded, the overall transmission does not change speed. When the load is large, the friction clutch 400 disengages and the transmission changes speed.

[0024] When the power input and / or power output components of the planetary gear set are different from those described above, the connection positions of the load-limiting clutch and the one-way clutch can also be adjusted accordingly to meet the process of overall transmission under light load, constant speed, and one-way clutch engagement under heavy load, thus achieving speed change transmission.

[0025] When the connecting elements of the load-limiting clutch are different and the working conditions of the planetary gear set are different, the stress on each element and the degree of satisfaction and adaptability to the specific working process of the working condition are different. Although the working stress of the planetary gear set is different when the load-limiting clutch is different from that of the unload-free clutch, the required working process can still be achieved by using a one-way clutch or an electromagnetic locker. Since there are many types, they will not be described in detail here.

[0026] The one-way clutch 200 is preferably a roller-groove type one-way clutch. As other preferred embodiments of the invention, the one-way clutch can also be a wedge-type one-way clutch or a ratchet mechanism. An electromagnetic locker can also be used instead of the one-way clutch; the electromagnetic locker disengages when a small transmission ratio is required and engages when a large transmission ratio is needed. The electromagnetic locker is preferably a locking pin type mechanism. As other preferred embodiments of the invention, the electromagnetic locker can also be a friction braking mechanism, etc., resulting in a variety of structural methods.

[0027] In the embodiment of the automatic speed change winch, an automatic speed change component is selected from any one stage of the winch gear mechanism, so that the winch has an automatic speed change function. When there is no load or light load, the automatic speed change component rotates as a whole, and the overall transmission ratio of the winch is small. However, when the load is large, all gear mechanisms work at different speeds, and the overall transmission ratio is large.

[0028] The above-mentioned working process, namely the transmission ratio change process, can be fully realized automatically by mechanical means. The transmission ratio is automatically adjusted according to the load size without the need for additional manual operation. Moreover, the specific working process does not affect the original working requirements at all, such as winding or unwinding the rope under load, winding or unwinding the rope under no-load conditions, or maintaining the braking effect of the winch when necessary.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic transmission component, comprising: Planetary gear set, one-way clutch, fixed component, load-limiting clutch; The planetary gear set includes a sun gear, a ring gear, and a planet carrier; The one-way clutch is disposed between the element of the planetary gear set and the fixed member; the load-limiting clutch is disposed in the planetary gear set.

2. An automatic transmission component, comprising: Planetary gear set, electromagnetic lock, fixing component, load limiting clutch; The planetary gear set includes a sun gear, a ring gear, and a planet carrier; The electromagnetic locking device is disposed between the elements of the planetary gear set and the fixing member, and is configured to lock the elements of the planetary gear set to the fixing member; the load-limiting clutch is disposed in the planetary gear set.

3. The automatic transmission assembly according to claim 1 or 2, characterized in that: The load-limiting clutch includes a friction element that is frictionally connected to the gear ring and / or the sun gear.

4. The automatic transmission assembly according to claim 1 or 2, characterized in that: The load-limiting clutch includes a friction element that is frictionally connected to the gear ring and / or the planetary carrier.

5. The automatic transmission assembly according to claim 1 or 2, characterized in that: The load-limiting clutch includes a friction element that is frictionally connected to the planet carrier and / or the sun gear.

6. The automatic transmission assembly according to claim 1 or 2, characterized in that: The load-limiting clutch is a friction clutch and is located between the components of the planetary gear set.

7. The automatic transmission assembly according to claim 1 or 2, characterized in that: The fastener includes a housing that is fixedly installed, and parts that are directly or indirectly fixedly connected to the housing.

8. An automatic transmission winch, comprising an automatic transmission assembly as described in any one of claims 1-7, further comprising an actuating device, a transmission element, a drum, a braking assembly, and a housing; wherein the actuating device provides power, which is transmitted to the drum via the transmission element and the automatic transmission assembly; the braking assembly is capable of braking the drum when required for operation; and the housing provides overall mounting support and protection.

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