一种高压油脂泵的可调活塞机构

Abstract

本申请涉及一种高压油脂泵的可调活塞机构，涉及高压油脂泵的技术领域，其包括可调缸体，可调缸体的内部贯穿开设有进油通道和输油腔，所述进油通道的尾部与输油腔的头部连通设置，所述输油腔的内部设有可调单向阀芯。本申请通过设置可调缸体、调节杆和调节螺母，调节杆螺纹连接在可调单向阀芯内部且与调节螺母固定连接，转动调节螺母可带动调节杆移动，调节杆与柱塞之间形成进油腔，调节杆移动可改变进油腔大小，进而调节进油量，影响出油相关参数，从而实现对出油量的灵活调节，满足不同工况下对油脂用量的精确控制需求，解决了传统高压油脂泵出油量无法灵活调节的问题，提升了设备整体性能和效率。

Claims

1. An adjustable piston mechanism for a high pressure grease pump comprising an adjustable cylinder (1), characterized in that: An adjustable cylinder body (1) has an oil inlet channel (2) and an oil delivery chamber (3) running through its interior. The tail end of the oil inlet channel (2) is connected to the head end of the oil delivery chamber (3). An adjustable one-way valve core (4) is provided inside the oil delivery chamber (3). The side of the adjustable one-way valve core (4) near the oil inlet channel (2) abuts against the inner wall of the oil delivery chamber (3). An adjusting rod (24) is threadedly connected inside the adjustable one-way valve core (4). The end of the adjusting rod (24) extends into the interior of the oil inlet channel (2). The adjustable cylinder body (1) has an oil inlet channel (2) and an oil delivery chamber (3) running through its interior. 2) The oil inlet (5) is connected in a communication manner. A plunger (6) is slidably inserted into the inside of the oil inlet channel (2). An oil inlet chamber (7) is formed between the plunger (6) and the adjusting rod (24). A locking nut (8) is threadedly connected to the end of the oil delivery chamber (3). An adjusting nut (9) is provided inside the locking nut (8). One side of the adjusting nut (9) is fixedly connected to the end of the adjusting rod (24). A fixing joint (10) is fixedly connected to the tail of the oil delivery chamber (3). A sealing plug (15) is threadedly connected inside the fixing joint (10).

2. An adjustable piston mechanism for a high pressure oil pump according to claim 1, characterized in that: The adjustable cylinder body (1) is fitted with a connecting joint (16) on its outer circumference. The adjustable cylinder body (1) has a first oil outlet (17) that communicates with the oil delivery chamber (3). The connecting joint (16) and the adjustable cylinder body (1) are provided with an oil delivery gap (18) that communicates with the first oil outlet (17). The connecting joint (16) has a second oil outlet (19) that communicates with the oil delivery gap (18).

3. An adjustable piston mechanism for a high pressure oil pump as defined in claim 1, wherein: The oil delivery chamber (3) is provided with a first limiting platform (20) inside. A first washer (11) is provided on one side of the first limiting platform (20). The side of the first washer (11) away from the first limiting platform (20) is in contact with the outer surface of the locking nut (8). The first washer (11) is sleeved on the outside of the adjustable one-way valve core (4) through the through hole opened inside.

4. The adjustable piston mechanism of a high pressure oil pump according to claim 1, wherein: The adjusting rod (24) has a sealing groove (12) inside, and an O-ring (13) is fitted inside the sealing groove (12).

5. An adjustable piston mechanism for a high pressure oil pump as defined in claim 1, wherein: The adjustable cylinder body (1) has a second limiting platform (14) on its outer circumference. A second washer (21) is provided between the second limiting platform (14) and the connecting joint (16). A third washer (22) is provided between the connecting joint (16) and the fixed joint (10).

6. The adjustable piston mechanism of a high-pressure grease pump according to claim 1, characterized in that: A one-way valve spring (23) is provided between the adjustable one-way valve core (4) and the first washer (11).

7. An adjustable piston mechanism for a high pressure oil pump as defined in claim 1, wherein: Oil delivery gaps are provided between the adjusting rod (24) and the oil inlet channel (2), between the adjustable one-way valve core (4) and the oil delivery chamber (3), between the adjustable one-way valve core (4) and the first washer (11), and between the adjusting nut (9) and the locking nut (8).

8. An adjustable piston mechanism for a high pressure oil pump as defined in claim 1, wherein: The adjusting nut (9) has a positioning spring (25) inside through a through hole. The end of the positioning spring (25) is provided with a steel ball (26), and the steel ball (26) abuts against the inner wall of the locking nut (8).

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