Guide structure of ceramic pump

Abstract

The utility model discloses a guide structure of a ceramic pump, which relates to the field of ceramic pumps and comprises a shell, a ceramic pump sleeve and a ceramic core, the shell is sleeved on the outer side of the ceramic pump sleeve, the ceramic core is inserted in the ceramic pump sleeve, the outer side end of the ceramic core is connected with a pull rod, and a guide component is arranged between the pull rod and the shell; wherein the guide assembly comprises a fixed seat, the fixed seat and the shell are integrally formed, and linear bearings are arranged at the two ends of the fixed seat. The guide assembly is arranged between the ceramic core and the ceramic pump sleeve, when the ceramic core is driven to reciprocate in the ceramic pump sleeve, the guide assembly can assist in guiding the ceramic core, the ceramic pump sleeve is not used as a main guide structure of the ceramic core, friction between the ceramic core and the ceramic pump sleeve is small, and the ceramic pump sleeve is not damaged. And therefore, the tightness of connection and matching between the ceramic pump sleeve and the ceramic core can be guaranteed for a long time, and the service life of the ceramic plunger pump is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, in particular to a guide structure of a ceramic pump. Background Art

[0002] Ceramic pumps are made of ceramics. Most common ceramic pumps are plunger pumps, which rely on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. Ceramic plunger pumps have the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation. They are widely used in high pressure, large flow and flow regulation occasions.

[0003] When the driving source in the ceramic plunger pump drives the ceramic core (plunger) to move back and forth in the ceramic pump sleeve (cylinder sleeve), the ceramic core is guided by the inner cavity of the ceramic pump sleeve. However, in the process of the driving source driving the ceramic core to move, the ceramic core may move eccentrically, resulting in greater friction with the ceramic pump sleeve, which in turn leads to a loose connection between the ceramic pump sleeve and the ceramic core, and may even cause damage to the ceramic core or ceramic pump sleeve, affecting the service life of the ceramic plunger pump. Utility Model Content

[0004] The purpose of the utility model is to provide a guide structure for a ceramic pump in order to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guide structure of a ceramic pump, comprising a shell, a ceramic pump sleeve and a ceramic core, wherein the shell is sleeved on the outside of the ceramic pump sleeve, the ceramic core is inserted into the ceramic pump sleeve, a pull rod is connected to the outer end of the ceramic core, and a guide assembly is provided between the pull rod and the shell;

[0006] Among them, the guide assembly includes a fixed seat integrally formed with the shell, linear bearings are provided at both ends of the fixed seat, the end of the pull rod close to the ceramic core is connected to a connecting frame, both ends of the connecting frame are connected to guide rods, and the end of the guide rod away from the connecting frame is slidably connected to the linear bearing.

[0007] As a further solution of the utility model: the linear bearing and the fixing seat are fixedly connected by bolts.

[0008] As a further solution of the utility model: the linear bearing and the fixing seat are fixedly connected by bolts.

[0009] As a further solution of the utility model: a threaded column is arranged at one end of the pull rod close to the connecting frame, a threaded hole for matching with the threaded column is opened in the middle of the connecting frame, and a screw hole groove matching with the threaded column is opened at the outer end of the ceramic core.

[0010] As a further solution of the utility model: a sealing ring is provided between the fixing seat and the ceramic core.

[0011] As a further solution of the present invention: the length of the ceramic core is the same as that of the guide rod, and the ceramic core and the guide rod are arranged in parallel.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model arranges a guide component between the ceramic core and the ceramic pump sleeve. When the ceramic core is driven to reciprocate in the ceramic pump sleeve, the guide component will assist in guiding the ceramic core. The ceramic core is no longer guided by the ceramic pump sleeve as the main guide structure. The friction between the ceramic core and the ceramic pump sleeve will be very small, thereby ensuring the tightness of the connection between the ceramic pump sleeve and the ceramic core for a long time and improving the service life of the ceramic plunger pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 Schematic diagram of the A structure.

[0016] In the figure: 1, housing; 2, ceramic pump sleeve; 3, ceramic core; 4, sealing ring; 5, pull rod; 6, guide assembly; 601, fixed seat; 602, linear bearing; 603, connecting frame; 6031, threaded hole; 604, guide rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figures 1-2 In the embodiment of the utility model, a guide structure of a ceramic pump comprises a shell 1, a ceramic pump sleeve 2 and a ceramic core 3, the shell 1 is sleeved on the outside of the ceramic pump sleeve 2, and the ceramic core 3 is inserted into the ceramic pump sleeve 2, characterized in that a pull rod 5 is connected to the outer end of the ceramic core 3, and a guide assembly 6 is provided between the pull rod 5 and the shell 1;

[0019] Among them, the guide assembly 6 includes a fixed seat 601 integrally formed with the outer shell 1, and linear bearings 602 are provided at both ends of the fixed seat 601. The end of the pull rod 5 close to the ceramic core 3 is connected to a connecting frame 603, and both ends of the connecting frame 603 are connected to a guide rod 604. The end of the guide rod 604 away from the connecting frame 603 is slidably connected to the linear bearing 602.

[0020] In this embodiment: when the driving source in the existing ceramic plunger pump drives the ceramic core (plunger) to move back and forth in the ceramic pump sleeve (cylinder sleeve), the ceramic core is guided by the inner cavity of the ceramic pump sleeve. However, in the process of the driving source driving the ceramic core to move, the ceramic core may be eccentric in its movement direction, which may cause a large friction force with the ceramic pump sleeve, thereby causing the ceramic pump sleeve to be loosely connected to the ceramic core, and even causing damage to the ceramic core or the ceramic pump sleeve, affecting the service life of the ceramic plunger pump. Therefore, this solution sets a guide component 6 between the ceramic core 3 and the outer shell 1. When the ceramic core 3 is driven to move back and forth in the outer shell 1, the guide component 6 will assist in guiding the ceramic core 3. The ceramic core 3 is no longer guided by the outer shell 1 as the main guide structure. The friction between the ceramic core 3 and the outer shell 1 will be very small, thereby ensuring the tightness of the connection between the outer shell 1 and the ceramic core 3 for a long time, thereby improving the service life of the ceramic plunger pump.

[0021] Specifically, the pull rod 5 is used to connect to the driving source on the existing device, and the shell 1 is fixed on the device. When the ceramic core 3 and the shell 1 move back and forth, the guide rod 604 provides a guide for the movement of the ceramic core 3, thereby avoiding friction damage to the ceramic core 3 or the shell 1.

[0022] Please refer to Figure 2 The linear bearing 602 is fixedly connected to the fixed seat 601 by bolts; a through hole is opened at the fixed seat 601 corresponding to the sliding hole of the linear bearing 602, which is used for the sliding end of the guide rod 604 to move telescopically; the ceramic core 3 is the same length as the guide rod 604, and the ceramic core 3 and the guide rod 604 are arranged in parallel.

[0023] In this embodiment: the guide assembly 6 has a simple structure and is easy to replace; in addition, since the sliding between the linear bearing 602 and the guide rod 604 is rolling friction, the friction effect caused by the movement between the linear bearing 602 and the guide rod 604 will be very small, and frequent replacement will not be required due to the large friction between each other.

[0024] Please refer to Figure 2 A threaded column is arranged at one end of the pull rod 5 close to the connecting frame 603, a threaded hole 6031 for matching with the threaded column is opened in the middle of the connecting frame 603, and a screw hole groove matching with the threaded column is opened at the outer end of the ceramic core 3.

[0025] In this embodiment, by aligning the threaded hole 6031 in the middle of the connecting frame 603 with the screw hole groove at the outer end of the ceramic core 3, the threaded column end of the pull rod 5 can be connected to the two ends, which is convenient and quick to disassemble and replace various components.

[0026] Please refer to Figure 1 A sealing ring 4 is provided between the fixing seat 601 and the ceramic core 3 .

[0027] In this embodiment, by adding a sealing ring 4 between the fixing seat 601 and the ceramic core 3, the sealing between the ceramic core 3 and the housing 1 can be further improved, thereby ensuring the normal and efficient operation of the ceramic plunger pump.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide structure for a ceramic pump, comprising a housing (1), a ceramic pump sleeve (2) and a ceramic core (3), wherein the housing (1) is sleeved on the outside of the ceramic pump sleeve (2), and the ceramic core (3) is inserted into the ceramic pump sleeve (2), characterized in that: The outer end of the ceramic core (3) is connected to a pull rod (5), and a guide assembly (6) is provided between the pull rod (5) and the housing (1); Wherein, the guide assembly (6) includes a fixed seat (601) integrally formed with the shell (1), and linear bearings (602) are provided at both ends of the fixed seat (601), and the end of the pull rod (5) close to the ceramic core (3) is connected to a connecting frame (603), and the two ends of the connecting frame (603) are connected to a guide rod (604), and the end of the guide rod (604) away from the connecting frame (603) is slidably connected to the linear bearing (602).

2. A ceramic pump guide structure according to claim 1, characterized in that: The linear bearing (602) and the fixing seat (601) are fixedly connected via bolts.

3. A ceramic pump guide structure according to claim 2, characterized in that: The fixing seat (601) is provided with a through hole at a position corresponding to the sliding hole of the linear bearing (602), which is used for the sliding end of the guide rod (604) to move telescopically.

4. A guide structure for a ceramic pump according to claim 3, characterized in that: A threaded column is provided at one end of the pull rod (5) close to the connecting frame (603), a threaded hole (6031) for matching with the threaded column is provided in the middle of the connecting frame (603), and a screw hole groove matching with the threaded column is provided at the outer end of the ceramic core (3).

5. A ceramic pump guide structure according to claim 4, characterized in that: A sealing ring (4) is provided between the fixing seat (601) and the ceramic core (3).

6. A ceramic pump guide structure according to claim 5, characterized in that: The ceramic core (3) and the guide rod (604) have the same length, and the ceramic core (3) and the guide rod (604) are arranged in parallel.

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