Damper and small-drift-diameter hydraulic electromagnetic directional valve provided with same
By designing an annular damper on a small diameter hydraulic solenoid reversing valve, the valve core impact problem is solved, convenient installation and equipment stability are achieved, and hydraulic failure is avoided.
Patent Information
- Application Number
- CN202422122409.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the prior art, the 6-diameter hydraulic solenoid reversing valve produces a large impact when the valve core is opened and closed, resulting in damage to the hydraulic system and equipment. The existing dampers are complex and easy to be damaged, and are prone to failure due to loosening of the hydraulic impact.
A circular damper is designed, with an installation part and a limiting structure on the outer periphery, an occlusion hole and a buffer hole inside, which are directly inserted into the small diameter hydraulic solenoid reversing valve oil port, which is used to reduce the flow rate of hydraulic oil and control the valve core movement, and simplify the installation process.
It realizes convenient installation of dampers, avoids damage caused by hydraulic shock, and ensures the stability of the hydraulic system and equipment durability.
Smart Images
Figure CN223089886U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electromagnetic control valves, in particular to a damper and a small-diameter hydraulic electromagnetic directional valve equipped with this damper. Background Art
[0002] In heavy industries, large-flow hydraulic systems are required. It is relatively common to use a 6-diameter hydraulic electromagnetic directional valve (or other small-diameter hydraulic electromagnetic directional valves) as the pilot control valve of a two-way cartridge valve. However, when its spool opens and closes, a large impact will be generated, which will cause great damage to the hydraulic system and equipment. Installing a damper on the electromagnetic directional valve can effectively solve this problem.
[0003] The prior art is to install a damper by drilling and tapping on the cover plate of the two-way cartridge valve, so as to adjust the closing time of the two-way cartridge valve and the hydraulic shock problem. However, this structure is complex to disassemble, easy to damage, and prone to looseness due to hydraulic shock, resulting in it entering the electromagnetic directional valve and causing hydraulic failures. Utility Model Content
[0004] In order to solve the above technical problems, the purpose of this utility model is to provide a damper that is easy to install and not easy to damage, and a small-diameter hydraulic electromagnetic directional valve equipped with this damper.
[0005] The technical solution provided by this utility model is as follows:
[0006] A damper for installing on a small-diameter hydraulic electromagnetic directional valve. The damper is annular, with an installation part on the outer periphery for direct insertion into the oil port of the small-diameter hydraulic electromagnetic directional valve, and a throttling hole connected to each other inside for throttling the hydraulic oil passing through and a buffer hole for reducing the flow rate of the hydraulic oil passing through.
[0007] Preferably, the front end of the outer periphery of the damper is provided with an installation boss to form the installation part for central limit when installed on the small-diameter hydraulic electromagnetic directional valve, the rear end is provided with a head for planar limit when installed on the small-diameter hydraulic electromagnetic directional valve, and a tool withdrawal groove is provided between the installation boss and the head.
[0008] Preferably, the small-diameter hydraulic electromagnetic directional valve is a 6-diameter hydraulic electromagnetic directional valve.
[0009] A small-diameter hydraulic electromagnetic directional valve equipped with the above-mentioned damper, and the damper is installed at the oil port of the small-diameter hydraulic electromagnetic directional valve.
[0010] Preferably, the damper is installed at any of the P, T, A, and B oil ports of the small-diameter hydraulic electromagnetic directional valve.
[0011] Preferably, the small-diameter hydraulic electromagnetic directional valve is used as the pilot control valve of a two-way cartridge valve.
[0012] Compared with the prior art, the damper of the present utility model and the small-diameter hydraulic electromagnetic reversing valve equipped with the damper can be directly inserted and installed at the oil port of the small-diameter hydraulic electromagnetic reversing valve, which is convenient for installation, not easily damaged, and will not cause hydraulic faults due to hydraulic impact entering the electromagnetic reversing valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0014] Figure 1 A three-dimensional schematic diagram of the damper according to the embodiment of the present utility model;
[0015] Figure 2 is Figure 1 A side-sectional schematic diagram of the damper shown;
[0016] Figure 3 A schematic diagram of the small-diameter hydraulic electromagnetic reversing valve according to the embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] In order to enable those skilled in the art to better understand the technical solutions in the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.
[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0019] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more such features. In the description of this application, "a plurality of" or "several" means two or more, unless otherwise specifically defined.
[0021] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the implementable conditions of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that this application can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.
[0022] As Figure 1 、 Figure 2 shown, an embodiment of the present utility model provides a damper for being installed on a small-diameter hydraulic electromagnetic directional control valve. This small-diameter hydraulic electromagnetic directional control valve serves as a pilot control valve for a two-way cartridge valve. In this embodiment, this small-diameter hydraulic electromagnetic directional control valve is a 6-way hydraulic electromagnetic directional control valve.
[0023] In this embodiment, the damper is in an annular shape, and an installation portion for directly inserting and installing on the oil port of the small-diameter hydraulic electromagnetic directional control valve is provided on the outer periphery. Specifically, an installation boss 2 is provided at the front end of the outer periphery of the damper to form the installation portion for centering when installed on the small-diameter hydraulic electromagnetic directional control valve. A head 1 is provided at the rear end mainly for planar positioning when installed on the small-diameter hydraulic electromagnetic directional control valve. A relief groove 5 is provided between the installation boss 2 and the head 1. By forming the installation boss 2 by opening the relief groove 5, the installation boss 2, as the installation portion, can be well inserted into the oil port of the small-diameter hydraulic electromagnetic directional control valve and cooperate with the head 1 to stably install the damper in the oil port of the small-diameter hydraulic electromagnetic directional control valve.
[0024] A throttle hole 3 and a buffer hole passage 4 that are connected and communicated are provided inside the damper. The diameter of the throttle hole 3 can be 1.2 mm - 2.0 mm, which is used to throttle the hydraulic oil passing through to control the speed when the spool of the two-way cartridge valve opens and closes and reduce hydraulic shock. The buffer hole passage 4 is used to reduce the flow rate of the hydraulic oil passing through and reduce the heat generated when the hydraulic oil passes through to play a role in protecting the hydraulic valve and the hydraulic oil.
[0025] This damper has a simple structure, low manufacturing cost, strong practicability, and is convenient to carry. It can be directly inserted and installed on any of the P, T, A, and B oil ports of the small-diameter hydraulic electromagnetic directional control valve without the need for additional installation space.
[0026] AsFigure 3 As shown, an embodiment of the present utility model further provides a small-diameter hydraulic electromagnetic directional valve 7, which is equipped with the damper 6 as described above, and the damper 6 is installed at the oil port of the small-diameter hydraulic electromagnetic directional valve 7. During installation, hold the head of the damper by hand and insert the mounting boss into the oil port towards the oil port until the head fits against the oil port plane. The damper 6 can be installed at any of the P, T, A, and B oil ports of the small-diameter hydraulic electromagnetic directional valve 7 (the P, T, A, and B oil ports are respectively marked as P, T, A, and B).
[0027] In this embodiment, the small-diameter hydraulic electromagnetic directional valve is used as a pilot control valve for a two-way cartridge valve. By adding this damper, hydraulic shock can be reduced when the two-way cartridge valve is opened and closed, thereby protecting the wear of the spool of the two-way cartridge valve and ensuring the stability of the hydraulic system and the durability of the equipment body.
[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. A damper for installation on a small-diameter hydraulic electromagnetic directional control valve, characterized in that The damper is annular, with an installation part on the outer periphery for direct plug-in installation on the oil port of a small-diameter hydraulic electromagnetic directional control valve, and internally there are a throttle hole connected to each other for throttling the hydraulic oil flow rate passing through and a buffer passage for reducing the flow velocity of the hydraulic oil passing through.
2. The damper according to claim 1, wherein, The outer periphery of the damper is provided with an installation boss at the front end to form an installation part for central limit when installed on a small-diameter hydraulic electromagnetic directional control valve, and a head for plane limit when installed on a small-diameter hydraulic electromagnetic directional control valve is provided at the rear end, and a tool withdrawal groove is provided between the installation boss and the head.
3. The damper according to claim 1 or 2, characterized in that, The small-diameter hydraulic electromagnetic directional control valve is a 6-way hydraulic electromagnetic directional control valve.
4. A small-diameter hydraulic electromagnetic directional valve, characterized in that, Equipped with the damper according to any one of claims 1 to 3, the damper is installed on the oil port of a small-diameter hydraulic electromagnetic directional control valve.
5. The small-diameter hydraulic electromagnetic directional control valve according to claim 4, characterized in that, The damper is installed on any of the P, T, A, and B oil ports of a small-diameter hydraulic electromagnetic directional control valve.
6. The small-diameter hydraulic electromagnetic directional control valve according to claim 4, characterized in that, The small-diameter hydraulic electromagnetic directional control valve is used as a pilot control valve for a two-way cartridge valve.