递进式注油分配装置

Abstract

本实用新型涉及液路控制装置技术领域，尤其涉及递进式注油分配装置。递进式注油分配装置包括一级注油阀和二级注油阀，二级注油阀连接在一级注油阀的下游，二级注油阀包括阀体，阀体具有阀体内腔，阀体内腔中密封转动安装有阀芯，阀芯具有阀芯内腔，阀芯内腔连通有进液通道，阀体上设有三个以上连通阀体内腔与阀体外部的阀体流道，全部阀体流道位于同一圆周面上，阀芯上对应阀体流道设有连通阀芯内腔与阀芯外部的阀芯流道，阀芯流道与全部阀体流道位于同一平面上，关闭一级注油阀，转动二级注油阀的阀芯，当阀芯流道与阀体流道对齐时打开一级注油阀，液体从该阀体流道流出。本实用新型递进式注油分配装置能够避免润滑油浪费。

Claims

1. A progressive oil injection and distribution device, characterized in that: It includes a primary oil injection valve and a secondary oil injection valve. The secondary oil injection valve is connected downstream of the primary oil injection valve. The secondary oil injection valve includes a valve body with an internal cavity. A valve core is rotatably installed in the internal cavity of the valve body. The valve core has an internal cavity and an inlet channel. The valve body has three or more flow channels connecting the internal cavity of the valve body to the outside of the valve body. All flow channels are located on the same circumferential surface. The valve core has a flow channel corresponding to the flow channels of the valve body, connecting the internal cavity of the valve core to the outside of the valve core. The flow channels of the valve core and all flow channels of the valve body are located on the same plane. When the primary oil injection valve is closed, the valve core of the secondary oil injection valve is rotated. When the flow channel of the valve core is aligned with the flow channel of the valve body, the primary oil injection valve is opened, and liquid flows out from the flow channel of the valve body.

2. The progressive oil dispensing apparatus of claim 1, wherein: The valve body is provided with a positioning structure for axial positioning of the valve core.

3. The progressive oil dispensing apparatus of claim 2, wherein: The valve body cavity includes a large-diameter section and a small-diameter section. The connection between the large-diameter section and the small-diameter section forms an annular stepped surface. The annular stepped surface is in a stop fit with one axial end of the valve core. The cavity wall of the small-diameter section is provided with a groove, in which a retaining ring is installed. The retaining ring is in a stop fit with the other axial end of the valve core. The annular stepped surface and the retaining ring constitute the positioning structure and axially position the valve core from both axial sides of the valve core.

4. The progressive oil dispensing device according to any one of claims 1 to 3, characterized in that: The valve body is a tubular structure, and the valve core is a cylindrical structure with one end open and the other end sealed. A drive motor is fixed at one end of the valve body, and the drive motor is connected to the sealed end of the valve core to drive the valve core to rotate. The liquid inlet channel is provided on the valve body at one axial end near the opening of the valve core.

5. The progressive oil dispensing apparatus of claim 4, wherein: The valve body flow channel extends axially to the end face of the valve body opposite to the drive motor, or the valve body flow channel extends radially to the side of the valve body.

6. The progressive oil dispensing device according to any one of claims 1-3, wherein: The secondary oil injection valve also includes a position calibration component for calibrating the rotation angle of the valve core.

7. The progressive oil dispensing apparatus of claim 6, wherein: The secondary oil injection valve also includes a drive motor for driving the valve core to rotate. The drive motor is controlled by a motor controller to drive the valve core to rotate. The position calibration component includes a magnetic element mounted on the valve core and a position calibration sensor mounted on the valve body to detect the magnetic element. The position calibration sensor is used to transmit the position signal of the valve core to the motor controller.

8. The progressive oil dispensing apparatus of claim 7, wherein: A radial groove is provided on the outer wall of the valve core near the end position, and a magnetic element is installed in the radial groove. An axially extending groove is provided on the end face of the valve body near the magnetic element, and a position calibration sensor is installed in the axial groove.

9. The progressive oil dispensing apparatus of any one of claims 1-3, wherein: The primary oil injection valve has multiple outlets, and each outlet is connected to the secondary oil injection valve via a branch pipe.

10. The progressive oil dispensing apparatus of any one of claims 1-3, wherein: The valve core is a tubular structure with both ends sealed. A drive motor is fixed at one end of the valve body. The valve body has a valve body through hole that radially penetrates the valve body. An annular groove is formed on the inner wall of the valve body and / or the outer wall of the valve core, forming an annular transition cavity between the valve body and the valve core. The valve core has a valve core through hole that connects the annular transition cavity and the inner cavity of the valve core. The valve body through hole, the annular transition cavity, and the valve core through hole constitute the liquid inlet channel. The valve body flow channel extends radially.

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