A twin-cylinder bidirectional reciprocating intensifier

Abstract

This invention relates to the field of hydraulic cylinder technology, specifically disclosing a dual-cylinder bidirectional reciprocating booster. The booster includes two boosting mechanisms, each equipped with a P port, a T port, and an HP port. The P ports of the two boosting mechanism bodies are connected, the T ports of the two boosting mechanisms are connected, and the HP ports of the two boosting mechanisms are connected. The two boosting mechanisms are designated as boosting mechanism 1 and boosting mechanism 2. The booster of this invention employs a dual boosting mechanism configuration. In operation, it works in conjunction with two directional valve mechanisms to simultaneously drive the two boosting mechanisms. When the directional valves switch directions, it eliminates the large fluctuations caused by simultaneous switching, avoiding the fluctuation of zero high-pressure output during simultaneous switching. This achieves a relatively simple structure, allowing for unrestricted stroke of the boosting mechanisms and stable performance.

Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder technology, specifically a dual-cylinder bidirectional reciprocating intensifier. Background Technology

[0002] During the reciprocating motion of a single reciprocating booster, when the hydraulic control directional valve switches, the high-pressure output is 0. At this time, pressure fluctuations will occur at the high-pressure end. In certain specific situations, such as the pressure holding process of a diamond press, it is necessary to ensure continuous high-pressure output.

[0003] Existing technology CN202122008837.9 discloses a low-noise dual turbocharger, which includes a cylinder, a control valve, a first large piston, a second large piston, a first left small piston, a first right small piston, a second left small piston, and a second right small piston. The control valve controls the reciprocating movement of the first and second large pistons within the cylinder, thereby driving the first left small piston, the first right small piston, the second left small piston, and the second right small piston to reciprocate, continuously outputting pressurized oil. This patent's low-noise dual turbocharger can achieve dual piston operation, continuously output pressurized oil, and obtain a larger output flow. However, this patent uses a single reversing valve mechanism to simultaneously drive two turbocharger mechanisms. When the reversing valve reverses, there is no high-pressure flow output, therefore it cannot eliminate the fluctuations generated during the reversing of the reversing mechanism.

[0004] Existing technology CN201510521682.5 discloses a low-noise dual turbocharger. This low-noise dual turbocharger includes a cylinder, a control valve, a first large piston, a second large piston, a first left small piston, a first right small piston, a second left small piston, and a second right small piston. The control valve controls the reciprocating movement of the first and second large pistons within the cylinder, thereby driving the first left small piston, the first right small piston, the second left small piston, and the second right small piston to reciprocate, continuously outputting pressurized oil. In summary, this patented low-noise dual turbocharger can achieve dual piston operation, continuously output pressurized oil, and obtain a greater output flow rate.

[0005] In summary, we propose a dual-cylinder bidirectional reciprocating intensifier. Summary of the Invention

[0006] The purpose of this invention is to provide a dual-cylinder bidirectional reciprocating booster, which solves the problem that when a reversing valve mechanism drives two boosting mechanisms at the same time, there is no high pressure flow output when the reversing valve switches, and therefore the fluctuations generated when the reversing mechanism switches, as well as the problem of complex stroke, cannot be eliminated.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dual-cylinder bidirectional reciprocating booster, comprising: two boosting mechanisms, each of which is provided with a P port, a T port, and an HP port, wherein the P ports of the two boosting mechanism bodies are connected, the T ports of the two boosting mechanisms are connected, and the HP ports of the two boosting mechanisms are connected; the two boosting mechanisms are boosting mechanism No. 1 and boosting mechanism No. 2.

[0008] As a preferred embodiment of the present invention, the pressurization mechanism includes:

[0009] Turbocharger body: The turbocharger body consists of a main cylinder and sub-cylinders symmetrically arranged on both sides of the main cylinder;

[0010] The sub-cylinder of the No. 1 booster mechanism is provided with three feedback slots in sequence near the main cylinder. The feedback slots are K1 slot, K2 slot and basic slot from the outside to the inside of the sub-cylinder.

[0011] A large piston is disposed in the inner cavity of the main cylinder, and the large piston has a symmetrical structure.

[0012] Sub-pistons are disposed in the inner cavity of the sub-cylinder body. There are two sub-pistons, which are symmetrically arranged on both sides of the large piston. Each of the two sub-pistons is provided with an annular connecting groove, which can simultaneously connect the base groove and the K1 groove and the K2 groove.

[0013] The two pressurization mechanisms each include two directional valves, namely directional valve No. 1 and directional valve No. 2;

[0014] The No. 1 reversing valve achieves automatic reversing through pressure changes in the K1 groove, and the No. 2 reversing valve achieves automatic reversing through pressure changes in the K2 groove; both the No. 1 and No. 2 reversing valves are two-position four-way reversing valves.

[0015] In a preferred embodiment of the present invention, each of the two sub-cylinders has a P port on its outer side, and an inlet check valve is provided between the P port and the sub-cylinder; each of the two sub-cylinders has an HP port on its outer side, and an outlet check valve is provided between the HP port and the sub-cylinder; the main cylinder has an A port on its left side and a B port on its right side, and the A port and B port are connected to a reversing valve. By controlling the reversing valve, the A port and the P port can be connected, and the B port and the T port can be connected, or the A port and the T port can be connected, and the B port and the P port can be connected.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The booster described in the present invention adopts the form of a dual booster mechanism. When in use, it works with two reversing valve mechanisms to drive the two booster mechanisms at different times. When the reversing valves switch, the large fluctuations caused by simultaneous switching are eliminated, and the fluctuation of zero high pressure output during simultaneous switching is avoided. Thus, a relatively simple structure is achieved, which makes the stroke of the booster mechanism unrestricted and the performance stable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0018] Figure 1 This is a structural diagram of a dual-cylinder bidirectional reciprocating intensifier according to the present invention;

[0019] Figure 2 This is a schematic diagram of an embodiment of a dual-cylinder bidirectional reciprocating intensifier according to the present invention;

[0020] Figure 3 This is a schematic diagram of a second embodiment of the dual-cylinder bidirectional reciprocating intensifier of the present invention;

[0021] Figure 4 This is a schematic diagram of a single feedback configuration for a dual-cylinder bidirectional reciprocating intensifier according to the present invention;

[0022] Figure 5 This is a schematic diagram of the dual feedback configuration of a dual-cylinder bidirectional reciprocating intensifier according to the present invention. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0026] The present invention provides a dual-cylinder bidirectional reciprocating booster as described in the present invention, comprising: two boosting mechanisms, each of the two boosting mechanisms being provided with a P port, a T port and an HP port, wherein the P ports of the two boosting mechanism bodies are connected, the T ports of the two boosting mechanisms are connected, and the HP ports of the two boosting mechanisms are connected; the two boosting mechanisms are boosting mechanism No. 1 and boosting mechanism No. 2.

[0027] Furthermore, the pressurization mechanism includes:

[0028] Turbocharger body: The turbocharger body consists of a main cylinder and sub-cylinders symmetrically arranged on both sides of the main cylinder;

[0029] The sub-cylinder of the No. 1 booster mechanism is provided with three feedback slots in sequence near the main cylinder. The feedback slots are K1 slot, K2 slot and basic slot from the outside to the inside of the sub-cylinder.

[0030] A large piston is disposed in the inner cavity of the main cylinder, and the large piston has a symmetrical structure.

[0031] Sub-pistons are disposed in the inner cavity of the sub-cylinder body. There are two sub-pistons, which are symmetrically arranged on both sides of the large piston. Each of the two sub-pistons is provided with an annular connecting groove, which can simultaneously connect the base groove and the K1 groove and the K2 groove.

[0032] The two pressurization mechanisms each include two directional valves, namely directional valve No. 1 and directional valve No. 2;

[0033] The No. 1 reversing valve achieves automatic reversing through pressure changes in the K1 groove, and the No. 2 reversing valve achieves automatic reversing through pressure changes in the K2 groove; both the No. 1 and No. 2 reversing valves are two-position four-way reversing valves.

[0034] Furthermore, each of the two sub-cylinders has a P port on its outer side, and an inlet check valve is provided between the P port and the sub-cylinder; each of the two sub-cylinders has an HP port on its outer side, and an outlet check valve is provided between the HP port and the sub-cylinder; the main cylinder has an A port on its left side and a B port on its right side, and the A port and B port are connected to a reversing valve. Through the control of the reversing valve, the A port and the P port can be connected, and the B port and the T port can be connected, or the A port and the T port can be connected, and the B port and the P port can be connected.

[0035] Example 1

[0036] Please see Figures 1-2 This embodiment provides a dual-cylinder bidirectional reciprocating intensifier, comprising: two intensifier mechanisms, each equipped with a P port, a T port, and an HP port, wherein the P ports of the two intensifier mechanism bodies are connected, the T ports of the two intensifier mechanisms are connected, and the HP ports of the two intensifier mechanisms are connected. The intensifier mechanism includes: an intensifier body: the intensifier body consists of a main cylinder and sub-cylinder bodies symmetrically arranged on both sides of the main cylinder. Three feedback slots are sequentially arranged on the sub-cylinder bodies near the main cylinder body, the feedback slots being K1 slot, K2 slot, and basic slot sequentially from the outside to the inside of the sub-cylinder body; The pistons include a main piston located within the main cylinder cavity and a sub-piston located within the sub-cylinder cavity. The large piston has a symmetrical structure, with two annular connecting grooves symmetrically arranged on each piston. The width of the two annular connecting grooves is equal to the distance between the outermost and innermost ends of the three feedback grooves. Both sub-cylinder bodies have a P-port and an HP-port on their outer ends. The main cylinder body has a P-port on its left side and a T-port on its right side. The length of the sub-piston is consistent with the length of the sub-cylinder cavity. The connecting pipes of the P-port and the T-port have the same specifications.

[0037] In this embodiment, two directional valves need to be installed on the two reciprocating intensifiers, such as... Figure 1 As shown, for ease of explanation, the upper directional valve is named the first directional valve, and the lower one is named the second directional valve. The upper boosting mechanism is called boosting mechanism 1, and the lower one is called boosting mechanism 2. Both the first and second directional valves have K port, P port, A port, and B port. The K ports of the first and second directional valves are named K1 port and K2 port respectively for distinction. The P port of the first directional valve is connected to the P port of the first boosting mechanism, as well as the P port and T port of the main cylinder.

[0038] During the movement of the No. 1 booster mechanism to the right, K2 is connected to T first. The distance difference between K1 and K2 is S. K1 is connected to T after lagging behind by a distance of S. This causes the No. 1 reversing mechanism to start later than the No. 2 reversing mechanism, thereby eliminating the large fluctuations caused by simultaneous reversing and avoiding the fluctuation of zero high voltage output during simultaneous reversing.

[0039] like Figure 1-2As shown, at this time, the No. 2 booster mechanism moves to the far right. The feedback groove on the right side of the No. 1 booster mechanism connects K2 with the T return oil port. At this time, the No. 2 reversing mechanism has no pressure on the left side of K2 and pressure on the right side, so the reversing mechanism moves to the left. Meanwhile, the No. 1 booster mechanism continues to move to the left, continuously outputting high-pressure oil, so that the high-pressure output is not zero.

[0040] Example 2

[0041] Please see Figure 3 This embodiment provides a dual-cylinder bidirectional reciprocating intensifier, comprising: two intensifier mechanisms, each equipped with a P port, a T port, and an HP port, wherein the P ports of the two intensifier mechanism bodies are connected, the T ports of the two intensifier mechanisms are connected, and the HP ports of the two intensifier mechanisms are connected. The intensifier mechanism includes: an intensifier body: the intensifier body consists of a main cylinder and sub-cylinder bodies symmetrically arranged on both sides of the main cylinder. Three feedback slots are sequentially arranged on the sub-cylinder bodies near the main cylinder body, the feedback slots being K1 slot, K2 slot, and basic slot sequentially from the outside to the inside of the sub-cylinder body; The pistons include a main piston located within the main cylinder cavity and a sub-piston located within the sub-cylinder cavity. The large piston has a symmetrical structure, with two annular connecting grooves symmetrically arranged on each piston. The width of the two annular connecting grooves is equal to the distance between the outermost and innermost ends of the three feedback grooves. Both sub-cylinder bodies have a P-port and an HP-port on their outer ends. The main cylinder body has a P-port on its left side and a T-port on its right side. The length of the sub-piston is consistent with the length of the sub-cylinder cavity. The connecting pipes of the P-port and the T-port have the same specifications.

[0042] In this embodiment, two directional valves need to be installed on the two reciprocating intensifiers, such as... Figure 1 As shown, for ease of explanation, the upper directional valve is named the first directional valve, and the lower one is named the second directional valve. The upper boosting mechanism is called boosting mechanism 1, and the lower one is called boosting mechanism 2. Both the first and second directional valves have K port, P port, A port, and B port. The K ports of the first and second directional valves are named K1 port and K2 port respectively for distinction. The P port of the first directional valve is connected to the P port of the first boosting mechanism, as well as the P port and T port of the main cylinder.

[0043] like Figure 3 As shown, after the No. 2 reversing mechanism reverses to the left, P and B become connected, and the No. 2 boosting mechanism begins to move to the left. The No. 1 boosting mechanism continues to move to the right until K1 becomes connected to T, causing the No. 1 reversing mechanism to reverse.

[0044] In summary, this invention provides a smoother switching process for the reversing valve, unrestricted stroke of the booster mechanism, and a stable performance dual-cylinder automatic reciprocating booster.

[0045] Example 3

[0046] Please see Figures 4-5 , Figure 4 and Figure 5 The diagram shown illustrates the principle of this solution applied to single-feedback and dual-feedback booster equipment. Its main boosting principle is the same as that of the above embodiments, so it will not be described in detail.

[0047] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A dual-cylinder bidirectional reciprocating intensifier, characterized in that, It includes two boosting mechanisms, each of which is provided with a P port, a T port, and an HP port. The P ports of the two boosting mechanism bodies are connected, the T ports of the two boosting mechanisms are connected, and the HP ports of the two boosting mechanisms are connected. The two boosting mechanisms are boosting mechanism 1 and boosting mechanism 2. The pressurization mechanism includes: Turbocharger body: The turbocharger body consists of a main cylinder and sub-cylinders symmetrically arranged on both sides of the main cylinder; The sub-cylinder of the No. 1 booster mechanism is provided with three feedback slots in sequence near the main cylinder. The feedback slots are K1 slot, K2 slot and basic slot from the outside to the inside of the sub-cylinder. A large piston is disposed in the inner cavity of the main cylinder, and the large piston has a symmetrical structure; Sub-pistons are disposed in the inner cavity of the sub-cylinder body. There are two sub-pistons, which are symmetrically arranged on both sides of the large piston. Each of the two sub-pistons is provided with an annular connecting groove, which can simultaneously connect the base groove with grooves K1 and K2. The two pressurization mechanisms each include two directional valves, namely directional valve No. 1 and directional valve No. 2; The No. 1 reversing valve achieves automatic reversing through pressure changes in the K1 groove, and the No. 2 reversing valve achieves automatic reversing through pressure changes in the K2 groove; both the No. 1 and No. 2 reversing valves are two-position four-way reversing valves.

2. The dual-cylinder bidirectional reciprocating intensifier according to claim 1, characterized in that, Both of the two sub-cylinders have a P port on their outer ends, and an inlet check valve is installed between the P port and the sub-cylinder. Both of the two sub-cylinders have an HP port on their outer ends, and an outlet check valve is installed between the HP port and the sub-cylinder. The main cylinder has an A port on its left side and a B port on its right side. The A port and the B port are connected to a reversing valve. By controlling the reversing valve, the A port and the P port can be connected, and the B port and the T port can be connected, or the A port and the T port can be connected, and the B port and the P port can be connected.

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