一种基于滑动离合器的无返回装置

Abstract

本实用新型提供一种基于滑动离合器的无返回装置，通过壳体形成输入腔和传动腔；输入轴安装在壳体的输入腔内，单向传动组件整体安装在传动腔内；单向传动组件中，输出轴安装在传动腔的中心轴位置，并贯穿左壳体和右壳体；旋转壳体套设安装在输出轴中部，大齿轮套设安装在旋转壳体外部，并通过固定销与旋转壳体固定连接，大齿轮与输入轴上的齿轮啮合；旋转壳体设置为后端开口的套筒结构，通过其筒壁内的限位凸台安装球道盘组件，内侧球道盘与输出轴花键配合，外侧球道盘输出端的花键轴上套设有滑动离合器。本实用新型解决了现有无返回装置，对装配工艺性要求较高，以及低温下造成启动力矩大，影响整个装置的传动功能的问题。

Claims

1. A return device-free device based on a slip clutch, characterized in that include: The housing, the input shaft (001), and the one-way transmission assembly; the housing is mounted opposite to the left housing (002) and the right housing (005), and forms an input cavity and a transmission cavity within the housing; The input shaft (001) is installed in the input cavity of the housing, and the unidirectional transmission assembly is installed in the transmission cavity as a whole; The one-way transmission assembly includes: a large gear (017), a rotating housing (019), a ball track assembly, an output shaft (011), and a sliding clutch (009). The output shaft (011) is installed at the central shaft position of the transmission cavity and passes through the left housing (002) and the right housing (005); the rotating housing (019) is sleeved and installed in the middle of the output shaft (011), and the large gear (017) is sleeved and installed outside the rotating housing (019) and fixedly connected to the rotating housing (019) by a fixing pin. The large gear (017) meshes with the gear on the input shaft (001); the rotating housing (019) is set as a sleeve structure with an open rear end. The ball track plate assembly is installed through the limiting boss inside its cylinder wall. The inner ball track plate is splined with the output shaft (011), and a sliding clutch (009) is sleeved on the spline shaft at the output end of the outer ball track plate.

2. A return means free device based on a slip clutch according to claim 1, characterized in that, The sliding clutch (009) includes: an inner clutch ring (9a), an outer clutch ring (9b), and a roller (9c) disposed between the inner clutch ring (9a) and the outer clutch ring (9b). The inner ring (9a) of the clutch is fixedly sleeved on the spline shaft at the output end of the right ball track plate (016); the outer ring (9b) of the clutch is fixedly connected to the right housing (005) through a boss arranged circumferentially on the outer ring.

3. A return means free device based on a slip clutch according to claim 2, characterized in that, The fairway disc assembly includes: a left fairway disc (018), a right fairway disc (016), and a steel ball (008). The center hole of the left ball track disc (018) is set in the form of a spline and is sleeved on the output shaft (011) through the spline. The left ball track disc (018) is installed into the cylinder wall of the rotating housing (019) through multiple grooves arranged circumferentially on the outer ring and forms a circumferential limit with the corresponding boss in the cylinder wall. The inner hole of the right ball track disc (016) is sleeved on the output shaft (011) through a clearance fit. The right ball track disc (016) is installed into the cylinder wall of the rotating housing (019) through multiple grooves arranged circumferentially on the outer ring and forms a circumferential limit with the corresponding boss in the cylinder wall. The disc body of the right ball track disc (016) is installed opposite to the disc body of the left ball track disc (018). The steel ball (008) is installed in the ball sockets at corresponding positions on the left ball track disc (018) and the right ball track disc (016). The inner ring (9a) of the clutch connecting the sliding clutch (009) is sleeved on the spline shaft at the output end of the right ball track disc (016).

4. The non-returning device based on a slipper clutch according to claim 3, characterized in that, The ball track assembly is used to drive the left ball track (018) and right ball track (016) to rotate synchronously through the rotating housing (019) when a positive load is applied through the input shaft (001) to the rotating housing (019), and to drive the output shaft (011) to rotate through the left ball track (018) to achieve the function of positive load transmission. The ball track assembly is also used to push the steel ball (008) uphill and generate an axial load when the right ball track (016) is subjected to a reverse load applied by the output shaft (011). The axial load is applied to the inner ring (9a) of the sliding clutch (009) and squeezes the roller (9c) between the inner ring (9a) and the outer ring (9b). The sliding clutch (009) subjected to the axial load generates a friction braking load, thereby restricting the transmission of external loads through the output shaft (011).

5. A return means free device based on a slip clutch according to claim 4, characterized in that, Also includes: Spring seat (014) and compression spring (015); A spring seat (014) is also fitted on the output spline shaft of the right ball track disc (016), and the spring seat (014) is located between the inner clutch ring (9a) of the sliding clutch (009) and the right ball track disc (016). Multiple compression springs (015) are installed circumferentially between the spring seat (014) and the right ball track disc (016) so that the pre-pressure provided by the compression springs (015) serves as the starting torque for the steel ball (008) to climb.

6. A return means free device based on a slip clutch according to claim 5, characterized in that, Also includes: Pressure plate (013) and disc spring (012); The pressure plate (013) and disc spring (012) are sequentially sleeved on the output shaft (011). The pressure plate (013) is located outside the spline shaft and the inner ring (9a) of the clutch at the output end of the right ball track plate (016). A disc spring (012) is provided between the pressure plate (013) and the right housing (005).

7. A return means free device based on a slip clutch according to any one of claims 1 to 6, characterized in that, Also includes: Multiple sets of deep groove ball bearings, washers (007); The input shaft (001) is mounted in the input cavity formed by the left housing (002) and the right housing (005) via a first deep groove ball bearing (003) and a second deep groove ball bearing (004); The output shaft (011) is mounted on the left housing (002) and the right housing (005) through a fourth deep groove ball bearing (010) and a fifth deep groove ball bearing (020); The cylindrical wall of the rotating housing (019) is mounted on the right housing (005) via a third deep groove ball bearing (006), and a washer (007) is provided between the large gear (017) and the third deep groove ball bearing (006). The rotating housing (019) is mounted on the output shaft (011) via another deep groove ball bearing.

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