A four-way main reversing valve block for filling industrial pump

Abstract

The utility model relates to the technical field of main reversing valve blocks, and specifically to a quadruple main reversing valve block for a filling industrial pump; it comprises a main reversing valve body, on which a relief valve and a hydraulic three-position four-way reversing valve are arranged. The utility model adopts a hydraulic three-position four-way reversing valve to extend the service life of the quadruple main reversing valve block, improve the stability of the quadruple main reversing valve block, and improve the reliability and stability of the hydraulic system of the filling industrial pump. In addition, the quadruple main reversing valve block is highly integrated, and can limit the maximum pressure of the hydraulic system while satisfying the reversal of the hydraulic oil flow direction.

Description

Technical Field

[0001] The utility model relates to the technical field of a quadruple main reversing valve block, in particular to a quadruple main reversing valve block for a filling industrial pump. Background Art

[0002] The main conveying equipment in the tailings filling industry is the filling industrial pump. There are currently two types of filling industrial pumps on the market, one is the S swing valve filling industrial pump, and the other is the lifting cone valve filling industrial pump. Regardless of the filling industrial pump structure, there is a switching action of the left and right concrete pistons moving back and forth (which can be understood as a switching valve). At present, this switching action is completed by the action of a double-acting cylinder. The cylinder is driven by hydraulic oil. When the rod chamber is filled with oil, the cylinder retracts, and when the rodless chamber is filled with oil, the cylinder extends. During the entire working process of the filling industrial pump, the rod chamber and the rodless chamber alternately fill and return oil, over and over again.

[0003] In order to make the switching valve of the filling industrial pump switch accurately and automatically, there must be a valve block in the hydraulic system of the filling industrial pump to achieve this action, which is called the four-way main reversing valve block in the industry. At present, the four-way main reversing valve block is mainly made of 45# forged steel, and is installed with electromagnetic reversing valves, overflow valves, oil inlets, oil return ports, working oil ports, etc.

[0004] The switching valve that fills the industrial pump changes direction 14-20 times per minute, so the electromagnet of the electromagnetic reversing valve needs to be energized / de-energized 14-20 times per minute. Even if the life of the solenoid valve is 1 million times, based on 8 hours of work per day, the life cycle is only 100 days. The stability of the equipment is not high and cannot meet the use requirements. Summary of the invention

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a quadruple main reversing valve block for a filling industrial pump.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a four-way main reversing valve block for a filling industrial pump, comprising a main reversing valve body, on which a relief valve and a hydraulic three-position four-way reversing valve are arranged;

[0008] The front of the main reversing valve body is provided with four main oil cylinder A connection ports and four four-unit main reversing valve block oil inlets;

[0009] The left side of the main reversing valve body is provided with a right position control oil port and a four-way main reversing valve block oil discharge port;

[0010] A left position control oil port is arranged on the right side surface of the main reversing valve body;

[0011] The bottom of the main reversing valve body is provided with six threaded holes;

[0012] The back of the main reversing valve body is provided with four four-way main reversing valve block oil return ports and four main oil cylinder B connection ports.

[0013] Preferably, the oil inlets of the four quadruple main reversing valve blocks, the P port of the relief valve and the P ports of the four hydraulic three-position four-way reversing valves are all connected.

[0014] Preferably, the oil return ports of the four quadruple main reversing valve blocks and the T ports of the four hydraulic three-position four-way reversing valves are all connected.

[0015] Preferably, the connecting port A of the master oil cylinder and the port A of the hydraulic three-position four-way reversing valve are connected.

[0016] Preferably, the connecting port of the master cylinder B is connected to the port B of the hydraulic three-position four-way reversing valve.

[0017] Preferably, the left-position control oil port and the X-ports of four hydraulic three-position four-way reversing valves are connected.

[0018] Preferably, the right control oil port and the Y ports of four hydraulic three-position four-way reversing valves are connected.

[0019] Compared with the known public technology, the technical solution provided by the utility model has the following beneficial effects:

[0020] (1) The utility model adopts a hydraulic three-position four-way reversing valve, which prolongs the service life of the reversing valve, improves the stability of the reversing valve, and improves the reliability and stability of the hydraulic system of the filling industrial pump.

[0021] (2) The utility model is highly integrated, and the four-way main reversing valve block can not only satisfy the distribution of hydraulic oil flow direction, but also limit the maximum pressure of the hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a quadruple main reversing valve block for a filling industrial pump according to the utility model;

[0023] Figure 2 This is a left view of a four-way main reversing valve block for a filling industrial pump of the utility model;

[0024] Figure 3 This is a right side view of a four-way main reversing valve block for a filling industrial pump according to the utility model;

[0025] Figure 4 This is a bottom view of a quadruple main reversing valve block for a filling industrial pump according to the utility model;

[0026] Figure 5This is a top view of a four-way main reversing valve block for a filling industrial pump according to the utility model;

[0027] Figure 6 This is a back view of a quadruple main reversing valve block for a filling industrial pump according to the utility model;

[0028] Figure 7 The utility model is a schematic diagram of a four-unit main reversing valve block for a filling industrial pump.

[0029] Description of the numbers in the figure:

[0030] 1. Overflow valve; 2. First hydraulic three-position four-way reversing valve; 3. Second hydraulic three-position four-way reversing valve; 4. Third hydraulic three-position four-way reversing valve; 5. Fourth hydraulic three-position four-way reversing valve; 6. Main reversing valve body; 6.1. Left position control oil port; 6.2. First connection port of main oil cylinder A; 6.3. Second connection port of main oil cylinder A; 6.4. Third connection port of main oil cylinder A; 6.5. Fourth connection port of main oil cylinder A; 6.6. First oil inlet port of quadruple main reversing valve block; 6.7. Second oil inlet port of quadruple main reversing valve block; 6.8. Third oil inlet port of quadruple main reversing valve block; 6.9. The fourth oil inlet of the quadruple main reversing valve block; 6.10, the oil discharge port of the quadruple main reversing valve block; 6.11, the right position control oil port; 6.12, the first oil return port of the quadruple main reversing valve block; 6.13, the second oil return port of the quadruple main reversing valve block; 6.14, the third oil return port of the quadruple main reversing valve block; 6.15, the fourth oil return port of the quadruple main reversing valve block; 6.16, the first connection port of the main oil cylinder B; 6.17, the second connection port of the main oil cylinder B; 6.18, the third connection port of the main oil cylinder B; 6.19, the fourth connection port of the main oil cylinder B; 6.20, threaded hole 1; 6.21, threaded hole 2; DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "sleeved / connected", "connected", etc. should be understood in a broad sense. For example, "connection" 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 an indirect connection through an intermediate medium, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0034] like Figure 1-Figure 7 As shown, the utility model provides a four-way main reversing valve block for filling industrial pumps, including a main reversing valve body 6, on which an overflow valve 1, a first hydraulic three-position four-way reversing valve 2, a second hydraulic three-position four-way reversing valve 3, a third hydraulic three-position four-way reversing valve 4, and a fourth hydraulic three-position four-way reversing valve 5 are arranged. The front of the main reversing valve body 6 is provided with a first connection port 6.2 of the main oil cylinder A, a second connection port 6.3 of the main oil cylinder A, a third connection port 6.4 of the main oil cylinder A, a fourth connection port 6.5 of the main oil cylinder A, a first oil inlet port 6.6 of the four-way main reversing valve block, a second oil inlet port 6.7 of the four-way main reversing valve block, a third oil inlet port 6.8 of the four-way main reversing valve block, and a fourth oil inlet port 6.9 of the four-way main reversing valve block; the left side of the main reversing valve body 6 is provided with a right position control oil port 6.11 and an oil discharge port 6.10 of the four-way main reversing valve block; the main reversing valve body 6 is provided with a first oil inlet port 6.2 of the main oil cylinder A, a second oil inlet port 6.3 of the main oil cylinder A, a third oil inlet port 6.4 of the main oil cylinder A, a fourth oil inlet port 6.5 of the main oil cylinder A, a first oil inlet port 6.6 of the four-way main reversing valve block, a second oil inlet port 6.7 of the four-way main reversing valve block, a third oil inlet port 6.8 of the four-way main reversing valve block, and a fourth oil inlet port 6.9 of the four-way main reversing valve block; the left side of the main reversing valve body 6 is provided with a right position control A left position control oil port 6.1 is arranged on the right side surface; six threaded holes 6.20 are arranged on the bottom of the main reversing valve body 6; the back of the main reversing valve body 6 is provided with a first oil return port 6.12 of a quadruple main reversing valve block, a second oil return port 6.13 of a quadruple main reversing valve block, a third oil return port 6.14 of a quadruple main reversing valve block, a fourth oil return port 6.15 of a quadruple main reversing valve block, a first connection port 6.16 of a master cylinder B, a second connection port 6.17 of a master cylinder B, a third connection port 6.18 of a master cylinder B and a fourth connection port 6.19 of a master cylinder B.

[0035] Furthermore, the first oil inlet 6.7 of the quadruple main reversing valve block, the second oil inlet 6.8 of the quadruple main reversing valve block, the third oil inlet 6.9 of the quadruple main reversing valve block and the P port of the overflow valve 1, the P port of the first hydraulic three-position four-way reversing valve 2, the P port of the second hydraulic three-position four-way reversing valve 3, the P port of the third hydraulic three-position four-way reversing valve 4, and the P port of the fourth hydraulic three-position four-way reversing valve 5 are all connected.

[0036] Furthermore, the first oil return port 6.12 of the quadruple main reversing valve block, the second oil return port 6.13 of the quadruple main reversing valve block, the third oil return port 6.14 of the quadruple main reversing valve block, the fourth oil return port 6.15 of the quadruple main reversing valve block and the T port of the first hydraulic three-position four-way reversing valve 2, the T port of the second hydraulic three-position four-way reversing valve 3, the T port of the third hydraulic three-position four-way reversing valve 4, and the T port of the fourth hydraulic three-position four-way reversing valve 5 are all connected.

[0037] Furthermore, the first connecting port 6.2 of the master cylinder A is connected to the port A of the first hydraulic three-position four-way reversing valve 2.

[0038] Furthermore, the second connecting port 6.3 of the master cylinder A is connected to the port A of the second hydraulic three-position four-way reversing valve 3.

[0039] Furthermore, the third connecting port 6.4 of the master cylinder A is connected to the port A of the third hydraulic three-position four-way reversing valve 4.

[0040] Furthermore, the fourth connecting port 6.5 of the master cylinder A is connected to the port A of the fourth hydraulic three-position four-way reversing valve 5.

[0041] Furthermore, the fourth connecting port 6.19 of the master cylinder B is connected to the port B of the first hydraulic three-position four-way reversing valve 2.

[0042] Furthermore, the third connecting port 6.18 of the master cylinder B is connected to the port B of the second hydraulic three-position four-way reversing valve 3.

[0043] Furthermore, the second connecting port 6.17 of the master cylinder B is connected to the port B of the third hydraulic three-position four-way reversing valve 4.

[0044] Furthermore, the first connecting port 6.16 of the master cylinder B is connected to the port B of the fourth hydraulic three-position four-way reversing valve 5.

[0045] Furthermore, the left control oil port 6.1 is connected to the X ports of the first hydraulic three-position four-way reversing valve 2, the second hydraulic three-position four-way reversing valve 3, the third hydraulic three-position four-way reversing valve 4 and the fourth hydraulic three-position four-way reversing valve 5.

[0046] Furthermore, the right control oil port 6.11 is connected to the Y ports of the first hydraulic three-position four-way reversing valve 2, the second hydraulic three-position four-way reversing valve 3, the third hydraulic three-position four-way reversing valve 4, and the fourth hydraulic three-position four-way reversing valve 5.

[0047] Furthermore, the oil unloading port 6.10 of the quadruple main reversing valve block and the T port of the relief valve 1 are connected.

[0048] Working principle: The power oil enters the main reversing valve from the outside through the first oil inlet 6.6 of the quadruple main reversing valve block, the second oil inlet 6.7 of the quadruple main reversing valve block, the third oil inlet 6.8 of the quadruple main reversing valve block, and the fourth oil inlet 6.9 of the quadruple main reversing valve block. When the control oil enters the main reversing valve body 6 from the outside through the left control oil port 6.1, the first hydraulic three-position four-way reversing valve 2, the second hydraulic three-position four-way reversing valve 3, the third hydraulic three-position four-way reversing valve 4, and the fourth hydraulic three-position four-way reversing valve 5 are in the left position at the same time, and the main oil cylinder A enters the oil, which can push the external left concrete piston to move. When the control oil enters the main reversing valve body 6 through the right control oil port 6.11 from the outside, the first hydraulic three-position four-way reversing valve 2, the second hydraulic three-position four-way reversing valve 3, the third hydraulic three-position four-way reversing valve 4, and the fourth hydraulic three-position four-way reversing valve 5 are in the right position at the same time, and the main oil cylinder B takes in oil, which can push the external right concrete piston to move. When no control oil enters the left control oil port 6.1 and the right control oil port 6.11, the first hydraulic three-position four-way reversing valve 2, the second hydraulic three-position four-way reversing valve 3, the third hydraulic three-position four-way reversing valve 4, and the fourth hydraulic three-position four-way reversing valve 5 are simultaneously in the middle position, and the hydraulic oil entering the main reversing valve 6 from the first oil inlet 6.6 of the main reversing valve, the second oil inlet 6.7 of the main reversing valve, the third oil inlet 6.8 of the main reversing valve, and the fourth oil inlet 6.9 of the main reversing valve flows back to the external hydraulic oil tank through the first oil return port 6.12 of the main valve block, the second oil return port 6.13 of the main valve block, the third oil return port 6.14 of the main valve block, and the fourth oil return port 6.15 of the main valve block. That is, the distribution reversing action of the power oil entering from the oil inlet of the quadruple main reversing valve block and then exiting from the connecting oil port of the main oil cylinder A or from the connecting oil port of the main oil cylinder B is realized. The overflow valve 1 exists to ensure that the maximum pressure of the hydraulic oil in the main reversing valve body 6 does not exceed a certain limit. The first hydraulic three-position four-way reversing valve 2, the second hydraulic three-position four-way reversing valve 3, the third hydraulic three-position four-way reversing valve 4, and the fourth hydraulic three-position four-way reversing valve 5 exist to change the flow direction of the hydraulic oil.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A four-way main reversing valve block for a filling industrial pump, comprising a main reversing valve body (6), characterized in that: The main reversing valve body (6) is provided with a relief valve (1), a first hydraulically operated three-position four-way reversing valve (2), a second hydraulically operated three-position four-way reversing valve (3), a third hydraulically operated three-position four-way reversing valve (4), and a fourth hydraulically operated three-position four-way reversing valve (5); The front of the main reversing valve body (6) is provided with a first connection port (6.2) of the main oil cylinder A, a second connection port (6.3) of the main oil cylinder A, a third connection port (6.4) of the main oil cylinder A, a fourth connection port (6.5) of the main oil cylinder A, a first oil inlet (6.6) of the quadruple main reversing valve block, a second oil inlet (6.7) of the quadruple main reversing valve block, a third oil inlet (6.8) of the quadruple main reversing valve block, and a fourth oil inlet (6.9) of the quadruple main reversing valve block; The left side of the main reversing valve body (6) is provided with a right position control oil port (6.11) and a four-way main reversing valve block oil discharge port (6.10); The right side surface of the main reversing valve body (6) is provided with a left position control oil port (6.1); The bottom of the main reversing valve body (6) is provided with six threaded holes (6.20); The back side of the main reversing valve body (6) is provided with a first oil return port (6.12) of a quadruple main reversing valve block, a second oil return port (6.13) of a quadruple main reversing valve block, a third oil return port (6.14) of a quadruple main reversing valve block, a fourth oil return port (6.15) of a quadruple main reversing valve block, a first connecting port (6.16) of a master oil cylinder B, a second connecting port (6.17) of a master oil cylinder B, a third connecting port (6.18) of a master oil cylinder B and a fourth connecting port (6.19) of a master oil cylinder B.

2. A quadruple main reversing valve block for a filling industrial pump according to claim 1, characterized in that: The first oil inlet (6.6) of the quadruple main reversing valve block, the second oil inlet (6.7) of the quadruple main reversing valve block, the third oil inlet (6.8) of the quadruple main reversing valve block, the fourth oil inlet (6.9) of the quadruple main reversing valve block and the P port of the overflow valve (1), the P port of the first hydraulic three-position four-way reversing valve (2), the P port of the second hydraulic three-position four-way reversing valve (3), the P port of the third hydraulic three-position four-way reversing valve (4), and the P port of the fourth hydraulic three-position four-way reversing valve (5) are all connected.

3. The quadruple main reversing valve block for a filling industrial pump according to claim 1 is characterized in that: The first oil return port (6.12) of the quadruple main reversing valve block, the second oil return port (6.13) of the quadruple main reversing valve block, the third oil return port (6.14) of the quadruple main reversing valve block, the fourth oil return port (6.15) of the quadruple main reversing valve block, the T port of the first hydraulic three-position four-way reversing valve (2), the T port of the second hydraulic three-position four-way reversing valve (3), the T port of the third hydraulic three-position four-way reversing valve (4), and the T port of the fourth hydraulic three-position four-way reversing valve (5) are all connected.

4. The quadruple main reversing valve block for a filling industrial pump according to claim 1 is characterized in that: The first connecting port (6.2) of the master oil cylinder A is in communication with the port A of the first hydraulic three-position four-way reversing valve (2).

5. The quadruple main reversing valve block for a filling industrial pump according to claim 1 is characterized in that: The second connecting port (6.3) of the master oil cylinder A is in communication with the port A of the second hydraulic three-position four-way reversing valve (3).

6. The quadruple main reversing valve block for a filling industrial pump according to claim 1 is characterized in that: The third connecting port (6.4) of the master oil cylinder A is in communication with the port A of the third hydraulic three-position four-way reversing valve (4).

7. The quadruple main reversing valve block for a filling industrial pump according to claim 1 is characterized in that: The fourth connecting port (6.5) of the master oil cylinder A is in communication with the port A of the fourth hydraulic three-position four-way reversing valve (5).

8. The quadruple main reversing valve block for a filling industrial pump according to claim 1 is characterized in that: The fourth connecting port (6.19) of the master oil cylinder B is in communication with the port B of the first hydraulic three-position four-way reversing valve (2).

9. The quadruple main reversing valve block for a filling industrial pump according to claim 1, characterized in that: The third connecting port (6.18) of the master oil cylinder B is in communication with the port B of the second hydraulic three-position four-way reversing valve (3).

10. The quadruple main reversing valve block for a filling industrial pump according to claim 1, characterized in that: The second connecting port (6.17) of the master oil cylinder B is connected to the port B of the third hydraulic three-position four-way reversing valve (4).

11. The quadruple main reversing valve block for a filling industrial pump according to claim 1, characterized in that: The first connecting port (6.16) of the master oil cylinder B is connected to the port B of the fourth hydraulic three-position four-way reversing valve (5).

12. The quadruple main reversing valve block for a filling industrial pump according to claim 1, characterized in that: The left control oil port (6.1) is in communication with the X ports of the first hydraulic three-position four-way reversing valve (2), the second hydraulic three-position four-way reversing valve (3), the third hydraulic three-position four-way reversing valve (4), and the fourth hydraulic three-position four-way reversing valve (5).

13. The quadruple main reversing valve block for a filling industrial pump according to claim 1, characterized in that: The right control oil port (6.11) is in communication with the Y ports of the first hydraulic three-position four-way reversing valve (2), the second hydraulic three-position four-way reversing valve (3), the third hydraulic three-position four-way reversing valve (4), and the fourth hydraulic three-position four-way reversing valve (5).

14. The quadruple main reversing valve block for a filling industrial pump according to claim 1, characterized in that: The oil unloading port (6.10) of the quadruple main reversing valve block and the T port of the overflow valve (1) are in communication.

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