一种柱塞泵柱塞腔快换密封套

Abstract

本实用新型公开了一种柱塞泵柱塞腔快换密封套，属于柱塞泵技术领域。该种柱塞泵柱塞腔快换密封套，包括柱塞泵本体和密封套组件，柱塞泵本体包括泵壳，泵壳的内部开设有第一柱塞腔和第二柱塞腔，第一柱塞腔在靠近第二柱塞腔的一端内部开设有若干插槽，密封套组件设置于泵壳的内部，密封套组件包括第一压盖，第一压盖安装于第一柱塞腔的内部，第一压盖的一侧设有密封套，密封套在远离第一压盖的一侧设有第二压盖，第二压盖的外壁与第一柱塞腔的内壁滑动配合，第二压盖在远离密封套的一侧安装有圆板，圆板上安装有若干插杆，若干插杆的一端分别位于若干插槽的内部，圆板的外壁与第二柱塞腔的内壁滑动配合。

Claims

1. A quick-change sealing sleeve for the plunger cavity of a plunger pump, characterized in that, The pump assembly includes a plunger pump body (1) and a sealing sleeve assembly (2). The plunger pump body (1) includes a pump housing (11). The pump housing (11) has a first plunger cavity (12) and a second plunger cavity (13) inside. The first plunger cavity (12) has several slots (14) inside at one end near the second plunger cavity (13). The sealing sleeve assembly (2) is disposed inside the pump housing (11). The sealing sleeve assembly (2) includes a first pressure cap (21). The first pressure cap (21) is installed inside the first plunger cavity (12). A sealing sleeve (22) is provided on one side of the first pressure cover (21). A second pressure cover (23) is provided on the side of the sealing sleeve (22) away from the first pressure cover (21). The outer wall of the second pressure cover (23) is slidably engaged with the inner wall of the first plunger cavity (12). A circular plate (24) is installed on the side of the second pressure cover (23) away from the sealing sleeve (22). A plurality of insert rods (26) are installed on the circular plate (24). One end of the plurality of insert rods (26) is located inside the plurality of slots (14). The outer wall of the circular plate (24) is slidably engaged with the inner wall of the second plunger cavity (13).

2. A quick change seal sleeve for a plunger cavity of a plunger pump according to claim 1, wherein, The plurality of the insert rods (26) and the plurality of the slots (14) are all distributed in a ring at equal intervals. The inner wall of the slot (14) slides with the outer wall of the insert rod (26). The inner wall of the slot (14) is provided with a pair of slots (15), which are arranged opposite to each other. The insert rod (26) is provided with a pair of grooves. The inside of the pair of grooves is provided with spherical blocks (29), which are arranged opposite to each other. The pair of spherical blocks (29) are respectively engaged with the pair of slots (15). The outer walls of the pair of spherical blocks (29) are respectively matched with the inner walls of the pair of slots (15).

3. A quick change seal sleeve for a plunger cavity of a plunger pump according to claim 2, wherein, The insert rod (26) is internally rotatably connected to a screw (27), and the screw (27) is externally threaded to a pressing seat (28). The pressing seat (28) has an annular groove with a trapezoidal longitudinal section. One side of the inner wall of the annular groove abuts against the outer wall of the spherical block (29) away from the slot (15). The pressing seat (28) has sliding grooves (210) on both sides of its outer surface. Each pair of sliding grooves (210) has a sliding strip inside. The pair of sliding strips are respectively installed on both sides of the inner wall of the insert rod (26). The inner walls of the pair of sliding grooves (210) slide in cooperation with the outer walls of the pair of sliding strips. The screw (27) passes through the insert rod (26) at the end away from the first pressure cap (21) and has an internal hexagonal groove.

4. A quick change seal sleeve for a plunger cavity of a plunger pump according to claim 1, wherein, Both ends of the sealing sleeve (22) are tapered, and the opposite sides of the first pressure cap (21) and the second pressure cap (23) are respectively in contact with the outer walls of both ends of the sealing sleeve (22).

5. A quick change seal sleeve for a plunger cavity of a plunger pump according to claim 4, wherein, A circular hole (25) is provided at the center of the first pressure cap (21), the second pressure cap (23) and the circular plate (24). A plunger is slidably provided between the first pressure cap (21), the sealing sleeve (22), the second pressure cap (23) and the circular plate (24). The outer wall of the plunger is tightly fitted with the inner wall of the sealing sleeve (22).

6. A quick change seal sleeve for a plunger cavity of a plunger pump according to claim 5, wherein, One end of the pump housing (11) is provided with a cover (16). Both the pump housing (11) and the cover (16) are fitted with connecting flanges (17). A pair of connecting flanges (17) are connected by several fastening bolts. A rotating shaft (18) is rotatably connected to the cover (16). One end of the rotating shaft (18) extends through the cover (16) into the interior of the pump housing (11). An eccentric wheel is connected to one end of the rotating shaft (18). The eccentric wheel is hinged to one end of the plunger.

7. A quick change seal sleeve for a plunger cavity of a plunger pump according to claim 6, wherein, The pump housing (11) is provided with an inlet hole and a drain hole, which are arranged opposite to each other. A low-pressure check valve is installed on the pump housing (11) at the inlet hole and a high-pressure check valve is installed at the drain hole.

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