阅读说明：本技术 一种双缸双作用隔膜泵液力端 (Double-cylinder double-acting diaphragm pump hydraulic end ) 是由 周立瑶 姬小东 武伟 郑惟才 孙丹龙 张国峰 王久铭 张立华 李和孝 李文明 于 2019-11-22 设计创作，主要内容包括：一种双缸双作用隔膜泵液力端属于隔膜泵技术领域,具体涉及一种双缸双作用隔膜泵液力端。本发明提供的一种占地面积小,结构简单,过流性好的双缸双作用隔膜泵液力端。本发明包括隔膜室,隔膜室的输出端设置有出料阀箱,出料阀箱与出料管相连,其特征在于：所述隔膜室的动力端处固定设置有板材箱,板材箱与油缸相连；所述油缸包括筒状缸体,筒状缸体两端设置有与板材箱配合的连接面；连接面上设置有动力输出件的工作孔。(A double-cylinder double-acting diaphragm pump hydraulic end belongs to the technical field of diaphragm pumps, and particularly relates to a double-cylinder double-acting diaphragm pump hydraulic end. The hydraulic end of the double-cylinder double-acting diaphragm pump provided by the invention has the advantages of small floor area, simple structure and good overflowing performance. The invention comprises a diaphragm chamber, the output end of the diaphragm chamber is provided with a discharge valve box, the discharge valve box is connected with a discharge pipe, and the invention is characterized in that: a plate box is fixedly arranged at the power end of the diaphragm chamber and connected with the oil cylinder; the oil cylinder comprises a cylindrical cylinder body, and connecting surfaces matched with the plate box are arranged at two ends of the cylindrical cylinder body; the connecting surface is provided with a working hole of the power output part.)

1. The utility model provides a two effect diaphragm pump fluid ends of double-cylinder, includes diaphragm chamber (4), and the output of diaphragm chamber (4) is provided with ejection of compact valve box (5), and ejection of compact valve box (5) link to each other its characterized in that with discharging pipe (6): a plate box (3) is fixedly arranged at the power end of the diaphragm chamber (4), and the plate box (3) is connected with the oil cylinder (2); the oil cylinder (2) comprises a cylindrical cylinder body, and connecting surfaces (7) matched with the plate box (3) are arranged at two ends of the cylindrical cylinder body; the connecting surface (7) is provided with a working hole of the power output part.

2. A double cylinder double acting diaphragm pump fluid end according to claim 1, wherein: the input end of diaphragm chamber (4) is provided with feed valve case (1), feed valve case (1) includes the box, and the box lower extreme is the inlet pipe, and the box upper end is provided with the delivery outlet, and the delivery outlet directly links to each other with diaphragm chamber (4).

3. A double cylinder double acting diaphragm pump fluid end according to claim 2, wherein: the two diaphragm chambers (4) are arranged, and the power ends of the two diaphragm chambers (4) are arranged oppositely; the discharge valve boxes (5) of the two diaphragm chambers (4) are arranged at the same side, and the discharge pipes (6) of the discharge valve boxes (5) are connected with a main pipe; the feeding valve boxes (1) of the two diaphragm chambers (4) are arranged at the same side; the overflowing central line of the feeding valve box (1) is superposed with the overflowing central line of the diaphragm chamber (4).

Technical Field

The invention belongs to the technical field of diaphragm pumps, and particularly relates to a hydraulic end of a double-cylinder double-acting diaphragm pump.

Background

The hydraulic end is the overflow part of the diaphragm pump for conveying medium, and is an important component of the double-cylinder double-acting diaphragm pump. After the driving force of the power end is transmitted to the hydraulic end through the piston rod, the piston in the oil cylinder performs reciprocating linear motion, and the oil between the piston and the diaphragm drives the diaphragm to do concave-convex reciprocating motion, so that the feed valve and the discharge valve are opened and closed alternately, and the slurry is conveyed.

At present, a double-cylinder double-acting diaphragm pump generally adopts a structure shown in a figure 1 and comprises parts such as an oil cylinder 2, a feeding valve box 1, a discharging valve box 5, a diaphragm chamber 4, a bent pipe 8 and the like. Slurry flows into the pipeline from the feeding pipe and is conveyed into the pipeline through the bent pipe 8, the feeding valve box 1, the diaphragm chamber 4, the discharging valve box 5 and the discharging pipe 6. This structure has the following disadvantages.

(1) The feeding valve box is arranged on the outer side of the diaphragm chamber, so that the total width of the hydraulic end is larger, and the occupied area of the whole machine is large.

(2) Slurry flows into the diaphragm cavity through the bent pipe after flowing in from the feeding valve box, and the slurry flow-through channel is in a curved shape and has poor flow-through performance.

(3) The oil cylinder body is of a 90-degree bending structure and is complex in structure, and two oil cylinder bodies need to be manufactured by two sets of dies, so that the manufacturing cost is increased.

(4) The hydraulic end has more parts, long assembly time and large tolerance.

Disclosure of Invention

The invention aims at the problems and provides the hydraulic end of the double-cylinder double-acting diaphragm pump, which has the advantages of small occupied area, simple structure and good overflowing performance.

In order to achieve the above purpose, the present invention adopts the following technical scheme, the present invention comprises a diaphragm chamber, the output end of the diaphragm chamber is provided with a discharge valve box, the discharge valve box is connected with a discharge pipe, and the present invention is characterized in that: a plate box is fixedly arranged at the power end of the diaphragm chamber and connected with the oil cylinder; the oil cylinder comprises a cylindrical cylinder body, and connecting surfaces matched with the plate box are arranged at two ends of the cylindrical cylinder body; the connecting surface is provided with a working hole of the power output part.

As a preferable scheme of the invention, the input end of the diaphragm chamber is provided with a feeding valve box, the feeding valve box comprises a box body, the lower end of the box body is provided with a feeding pipe, the upper end of the box body is provided with an output port, and the output port is directly connected with the diaphragm chamber.

As another preferable scheme of the invention, the number of the diaphragm chambers is two, and power ends of the two diaphragm chambers are oppositely arranged; the discharge valve boxes of the two diaphragm chambers are arranged at the same side, and the discharge pipes of the discharge valve boxes are connected with a main pipe; the feeding valve boxes of the two diaphragm chambers are arranged at the same side; the overflowing central line of the feeding valve box is superposed with the overflowing central line of the diaphragm chamber.

The invention has the beneficial effects that: 1. the invention improves the structure of the feeding valve box, and the feeding valve box is directly connected with the diaphragm chamber, so that slurry enters the diaphragm chamber and the discharging valve box along a straight line after flowing into the feeding valve box from the feeding pipe. The center lines of the slurry overflowing parts are superposed, and the overflowing performance is good.

2. The invention improves the structure of the oil cylinder body to make the oil cylinder body in a cylindrical shape, and can realize the consistency of the structures of the two oil cylinder bodies. The casting can be completed by only one set of die, and the manufacturing cost is low.

3. The invention improves the diaphragm chamber structure, adds the plate chamber on the basis of the casting chamber, and the two chambers can be welded into a whole, so that the contact surface of the plate chamber and the oil cylinder is a horizontal plane. Therefore, the hydraulic end has compact structure and small width size.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of the oil cylinder of the present invention.

FIG. 3 is a schematic diagram of the structure of a diaphragm chamber according to the present invention.

Fig. 4 is a schematic structural diagram of a hydraulic end of a double-cylinder double-acting diaphragm pump in the prior art.

Fig. 5 is a schematic structural view of a conventional cylinder.

Fig. 6 is a schematic structural view of a conventional diaphragm chamber.

In the attached drawing, 1 is a feeding valve box, 2 is an oil cylinder, 3 is a plate box, 4 is a diaphragm chamber, 5 is a discharging valve box, 6 is a discharging pipe, 7 is a connecting surface, and 8 is a bent pipe.

Detailed Description

The invention comprises a diaphragm chamber 4, the output end of the diaphragm chamber 4 is provided with a discharge valve box 5, the discharge valve box 5 is connected with a discharge pipe 6, and the invention is characterized in that: a plate box 3 is fixedly arranged at the power end of the diaphragm chamber 4, and the plate box 3 is connected with the oil cylinder 2; the oil cylinder 2 comprises a cylindrical cylinder body, and connecting surfaces 7 matched with the plate box 3 are arranged at two ends of the cylindrical cylinder body; the connecting surface 7 is provided with a working hole of the power output member.

As a preferred scheme of the present invention, the input end of the diaphragm chamber 4 is provided with a feeding valve box 1, the feeding valve box 1 comprises a box body, the lower end of the box body is a feeding pipe, the upper end of the box body is provided with an output port, and the output port is directly connected with the diaphragm chamber 4.

As another preferable scheme of the present invention, there are two diaphragm chambers 4, and the power ends of the two diaphragm chambers 4 are arranged oppositely; the discharge valve boxes 5 of the two diaphragm chambers 4 are arranged at the same side, and the discharge pipes 6 of the discharge valve boxes 5 are connected with a main pipe; the feeding valve boxes 1 of the two diaphragm chambers 4 are arranged at the same side; the overflowing central line of the feeding valve box 1 is superposed with the overflowing central line of the diaphragm chamber 4.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.