Novel spherical flow distribution cylinder body structure

Abstract

The utility model relates to a novel spherical flow distribution cylinder body structure, and belongs to the technical field of hydraulic pressure. Comprising a cylinder body, a spring hole, an internal spline, a plunger hole, a spherical surface and a kidney-shaped groove are arranged on the cylinder body, and an annular boss is further arranged on the edge of a spherical surface flow distribution position of the cylinder body. And the annular boss is assembled on the cylinder body. And the annular boss is detachably connected with the cylinder body. The utility model has the beneficial effects that: 1, the structure is a detachable annular boss, the structure is simple, the cost is low, and the assembly is convenient; 2, the material of the annular boss is consistent with that of the spherical surface of the cylinder body, so that the condition that the edge of the valve plate is seriously abraded is avoided; 3, the structure adopts a thread tightening mode, so that the stress capacity is improved, and a relatively high load can be borne; and 4, the eccentric wear of the valve plate and the cylinder body is prevented, the leakage rate is reduced, and the working efficiency of the plunger pump is improved.

Description

Technical Field

[0001] The utility model relates to a novel spherical distribution cylinder structure, belonging to the technical field of hydraulic pressure. Background Art

[0002] my country's plunger pumps developed early, and the country began to develop and produce axial piston pumps in the 1960s. However, compared with foreign benchmark products, my country's axial piston pumps have the following problems: low reliability, short life, low efficiency, slow dynamic response, etc. Among them, the large pressure shock and leakage caused by the unreasonable structural design of the rotating component are the main reasons for the low reliability, short life, low efficiency and slow dynamic response of the plunger pump.

[0003] Therefore, how to change the current situation in the prior art where the main shaft bears the overturning torque of the cylinder body during the operation of the axial piston pump, which reduces the life of the main shaft, has become an urgent problem to be solved by technical personnel in this field.

[0004] The existing patent is mainly "a method and device for balancing the lateral force of the cylinder of an axial piston pump" applied by China Railway Engineering Equipment Group Co., Ltd. This technology has the following shortcomings: This device involves three parts and has a complex structure. The oil introduced between the valve plate and the cylinder increases the load on the valve plate. Utility Model Content

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a novel spherical distribution cylinder structure to improve the stability and balance of the cylinder to reduce the influence of the overturning force on the distribution pair effect, thereby reducing leakage and improving the working efficiency of the plunger pump.

[0006] The utility model is realized through the following technical scheme: a novel spherical distribution cylinder structure, comprising a cylinder, the cylinder is provided with a spring hole, an internal spline, a plunger hole, a spherical surface and a waist groove, and an annular boss is also provided on the edge of the spherical distribution part of the cylinder.

[0007] The annular boss is assembled on the cylinder body.

[0008] The annular boss and the cylinder body are detachably connected.

[0009] The annular boss is screwed onto the cylinder body via threads.

[0010] The annular boss is made of the same material as the spherical surface.

[0011] The beneficial effects of the utility model are: 1. This structure is a detachable annular boss, which has a simple structure, low cost and convenient assembly;

[0012] 2. The material of the annular boss of this structure is consistent with the spherical surface material of the cylinder body, which avoids serious wear on the edge of the distribution plate;

[0013] 3. This structure uses threaded tightening method to increase its force bearing capacity and can withstand higher loads;

[0014] 4. This structure prevents eccentric wear between the distribution plate and the cylinder body, reduces leakage, and improves the working efficiency of the plunger pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below based on the drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] In the figure: 1. Spring hole; 2. Internal spline; 3. Plunger hole; 4. Spherical surface; 5. Waist groove; 6. Annular boss; 7. Thread. DETAILED DESCRIPTION

[0018] 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.

[0019] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] like Figure 1 A new type of spherical flow distribution cylinder structure shown in the figure includes a cylinder body, on which a spring hole 1, an internal spline 2, a plunger hole 3, a spherical surface 5 and a waist-shaped groove 6 are provided. An annular boss 4 is also provided on the edge of the spherical surface 5 of the cylinder body at the flow distribution position to prevent the distribution plate from being affected by the overturning force of the cylinder body and causing eccentric wear;

[0021] The annular boss 4 is assembled on the cylinder body.

[0022] The annular boss 4 is detachably connected to the cylinder body, and the distribution plate can be removed when it is matched with the spherical surface 5 to prevent interference.

[0023] The annular boss 4 is screwed onto the cylinder body via threads 7 .

[0024] The annular boss 4 is made of the same material as the spherical surface 5, which improves the effect, wear resistance and consistency of the flow distribution pair.

[0025] Through the above improvements, the influence of overturning force on flow distribution effect can be reduced, leakage can be reduced, and the life and working efficiency of the plunger pump can be improved.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel spherical flow distribution cylinder structure, comprising a cylinder body, the cylinder body is provided with a spring hole (1), an internal spline (2), a plunger hole (3), a spherical surface (5) and a waist groove (6), characterized in that: An annular boss (4) is also provided on the edge of the flow distribution portion of the spherical surface (5) of the cylinder body.

2. A novel spherical distribution cylinder structure according to claim 1, characterized in that: The annular boss (4) is assembled on the cylinder body.

3. A novel spherical distribution cylinder structure according to claim 1, characterized in that: The annular boss (4) is detachably connected to the cylinder body.

4. A novel spherical flow distribution cylinder structure according to claim 1, characterized in that: The annular boss (4) is screwed onto the cylinder body via a thread (7).

5. The novel spherical flow distribution cylinder structure according to claim 1 is characterized in that: The annular boss (4) and the spherical surface (5) are made of the same material.

Images