Double-wire distributor

Abstract

The utility model relates to the technical field of distributors, and discloses a double-line distributor, a main body mechanism comprises a mounting table, the top of the mounting table is fixedly connected with a left oil outlet joint, the top of the left oil outlet joint is provided with a left oil outlet, the top of the mounting table is fixedly connected with a right oil outlet joint, and the right oil outlet joint is provided with a right oil outlet. A right oil outlet is formed in the top of the right oil outlet connector, and a valve body is fixedly connected to the bottom of the mounting table. According to the utility model, the channel p1 is arranged, the channel p1 is connected with pressure oil, and the channel p2 is connected with an oil return tank. Pressure oil enters a containing cavity a1 and pushes a reversing plunger assembly to move rightwards, after reversing is in place, pressure oil of the containing cavity a1 and a channel p1 is connected into a containing cavity b1 through a channel c1, a metering plunger moves rightwards and pushes lubricating oil of a containing cavity b2 to reach a right oil outlet through an annular groove in the reversing plunger assembly, and at the moment, one-time oil discharging is completed; certain pressure of the oil outlet is guaranteed, and jet lubrication of thin lubricating oil can be achieved at a lubricating point.

Description

Technical Field

[0001] The utility model relates to the technical field of distributors, in particular to a double-line distributor. Background Art

[0002] The distributor is an important device for realizing multi-point lubrication in the lubrication oil circuit. Common distributors include single-line distributors and double-line distributors.

[0003] When using a double-line distributor, the distributor will have a large amount of leakage. Therefore, a double-line distributor is designed for the injection lubrication of the reciprocating cylinder of engineering machinery. This working condition requires the distributor to pump oil quickly and not have a large amount of leakage. The power oil source of this distributor is the pressure oil of the engineering machinery itself, which is connected to the P1 and P2 ports of the distributor through a two-position four-way solenoid valve to alternately feed and return oil. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a two-line distributor.

[0005] The utility model is implemented by the following technical scheme: a double-line distributor, comprising a main body mechanism, a reversing plunger mechanism and a metering plunger mechanism, wherein the reversing plunger mechanism is located inside the main body mechanism, and the metering plunger mechanism is located inside the main body mechanism;

[0006] The main structure includes a mounting platform, a left oil outlet joint is fixedly connected to the top of the mounting platform, a left oil outlet is opened on the top of the left oil outlet joint, a right oil outlet is fixedly connected to the top of the mounting platform, a right oil outlet is opened on the top of the right oil outlet joint, a valve body is fixedly connected to the bottom of the mounting platform, and a ball expansion plug is arranged inside the valve body.

[0007] As a further improvement of the above scheme, the left oil outlet joint and the right oil outlet joint are symmetrically evenly distributed on both sides of the center of the mounting table surface, and two ball-expansion type plugs are provided, and the two ball-expansion type plugs are symmetrically evenly distributed on both sides of the center of the mounting table surface.

[0008] As a further improvement of the above scheme, the reversing plunger mechanism includes a placement groove, a reversing plunger is fixedly connected inside the placement groove, a channel p1 is opened on the surface of the reversing plunger, a channel p2 is opened on the surface of the reversing plunger, a channel c1 is fixedly connected to the bottom of the reversing plunger, a one-way valve is arranged inside the reversing plunger, a channel e1 is fixedly connected to the top of the reversing plunger, a channel g1 is arranged on the surface of the channel e1, a channel f1 is fixedly connected to the surface of the channel g1, a cavity a1 is arranged inside the placement groove, a cavity a2 is arranged inside the placement groove, an oil inlet joint is fixedly connected to the top of the channel p1, and a first annular groove is fixedly connected to the bottom of the channel e1.

[0009] Through the above technical scheme, a one-way valve is built into the reversing plunger assembly, and the hollow structure is used to internally relieve and divert the internal leakage caused by high-pressure pressure maintenance; a back-pressure one-way valve is built into the oil outlet to ensure that the oil outlet has a certain pressure during operation, and a back-pressure one-way valve is built into the oil outlet to ensure that the internal leakage is blocked when the pressure is maintained.

[0010] As a further improvement of the above solution, the placement groove is arranged inside the mounting platform.

[0011] As a further improvement of the above scheme, the number of the placement grooves is set to two, and the two placement grooves are symmetrically evenly distributed on both sides with the center of the mounting table surface, the channels p1 and channel p2 are symmetrically evenly distributed on the top ends of both sides with the center of the reversing plunger surface, and the number of the channels c1 is set to two, and the two channels c1 are symmetrically evenly distributed on both sides with the center of the reversing plunger surface.

[0012] As a further improvement of the above scheme, the metering plunger mechanism includes a metering plunger, a bolt is threadedly connected to the surface of the metering plunger, a channel g2 is fixedly connected to the top of the metering plunger, a second annular groove is provided at the bottom of the channel g2, a cavity b1 is provided on the surface of the metering plunger, and a cavity b2 is provided on the surface of the metering plunger.

[0013] As a further improvement of the above solution, the metering plunger is arranged inside the mounting platform, and the metering plunger is connected to the reversing plunger through the channel c1.

[0014] As a further improvement of the above scheme, the number of the metering plungers is set to two, and the two metering plungers are symmetrically evenly distributed on both sides with the center of the mounting platform surface; the number of the channels g2 is set to two, and the two channels g2 are symmetrically evenly distributed on both sides with the center of the metering plunger surface; the cavities b1 and b2 are symmetrically evenly distributed at the top ends of both sides with the center of the metering plunger surface.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model sets a first channel p1, channel p1 is connected to pressure oil, and channel p2 is connected back to the oil tank. The pressure oil enters the chamber a1, pushing the reversing plunger assembly to move to the right. After the reversal is in place, the pressure oil of chamber a1 and channel p1 is connected to chamber b1 through channel c1, and the metering plunger moves to the right, pushing the lubricating oil of chamber b2 through the annular groove on the reversing plunger assembly to the right oil outlet, and at this time, one oil discharge is completed. The solenoid valve is reversed, and the channel p2 is connected to the pressure oil. The pressure oil enters the chamber a2, pushing the reversing plunger assembly to move to the left. After the reversal is in place, the pressure oil of chamber a2 and channel p2 is connected to chamber b2 through channel c2, and the metering plunger moves to the left, pushing the lubricating oil of chamber b1 through the second annular groove on the reversing plunger assembly to the left oil outlet, and at this time, one oil discharge is completed.

[0017] The utility model designs a reversing valve plunger through the dual-line distributor, wherein the reversing plunger is a hollow structure, and one-way valve assemblies are installed at both ends, which has a reverse sealing effect. When high-pressure oil is continuously input into P1, that is, when both chambers a1 and b1 are pressure-maintained, there are two leakage paths for the high-pressure oil. Leakage path one refers to the leakage of the a1 high-pressure oil through the gap between the reversing plunger assembly and the valve body to the first annular groove on the reversing plunger assembly, and then enters the central channel d1 of the reversing plunger to gather to the right; leakage path two refers to the leakage of the b1 chamber high-pressure oil through the gap between the metering plunger and the valve body to the channel g1, and the channel g1 is connected to the channel e1 through the channel f1, and also enters the central channel d1 of the reversing plunger through the first annular groove on the reversing plunger assembly to gather to the right. The lubricating oil leaked from the two paths merges and pushes the right one-way valve in the reversing plunger assembly to enter the chamber a2 and the channel p2. At this time, the channel p2 is connected to the oil tank, and the pressure is 0. Through the leakage diversion of the above leakage channels, the amount of high-pressure oil leaking to the left and right oil outlets will be greatly reduced, reducing the pollution of the leaked oil to the environment. The oil outlet joint has a built-in check valve to ensure that the oil outlet has a certain pressure, and the injection lubrication of thin oil lubricating oil can be achieved at the lubrication point. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall top view structure of the utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the reversing plunger mechanism of the utility model;

[0022] Figure 5 For this utility model Figure 4 A is an enlarged structural diagram;

[0023] Figure 6 This is a schematic diagram of the overall structure of the metering plunger mechanism of the utility model;

[0024] Figure 7 This is a schematic diagram of the internal structure of the metering plunger of the utility model;

[0025] Figure 8 For the utility model as a whole Figure 7 Enlarged structural diagram at point B.

[0026] Description of main symbols:

[0027] Main body; 101, mounting platform; 102, left oil outlet connector; 103, left oil outlet; 104, right oil outlet connector; 105, right oil outlet; 106, valve body; 107, ball expansion plug; 2, reversing plunger mechanism; 201, placement groove; 202, reversing plunger; 203, channel p1; 204, channel p2; 205, channel c1; 206, one-way valve; 207, channel e1; 208, channel g1; 209, channel f1; 210, cavity a1; 211 cavity a2; 212, oil inlet connector; 213, first annular groove; 3, metering plunger mechanism; 301, metering plunger; 302, bolt; 303, channel g2; 304, second annular groove; 305, cavity b1; 306, cavity b2. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0029] Please combine Figure 1-8 In this embodiment, a double-line distributor includes a main body mechanism 1, a reversing plunger mechanism 2 and a metering plunger 301 mechanism 3, wherein the reversing plunger 202 mechanism 2 is located inside the main body mechanism 1, and the metering plunger 301 mechanism 3 is located inside the main body mechanism 1;

[0030] The main body mechanism 1 includes a mounting platform 101, a left oil outlet joint 102 is fixedly connected to the top of the mounting platform 101, a left oil outlet 103 is opened on the top of the left oil outlet joint 102, a right oil outlet joint 104 is fixedly connected to the top of the mounting platform 101, a right oil outlet 105 is opened on the top of the right oil outlet joint 104, a valve body 106 is fixedly connected to the bottom of the mounting platform 101, and a ball expansion plug 107 is arranged inside the valve body 106.

[0031] The left oil outlet joint 102 and the right oil outlet joint 104 are evenly distributed on both sides symmetrically with respect to the center of the surface of the mounting platform 101. Two ball expansion plugs 107 are evenly distributed on both sides symmetrically with respect to the center of the surface of the mounting platform 101.

[0032] The reversing plunger mechanism 2 includes a placement groove 201, a reversing plunger 202 is fixedly connected inside the placement groove 201, a channel p1203 is opened on the surface of the reversing plunger 202, a channel p2204 is opened on the surface of the reversing plunger 202, a channel c1205 is fixedly connected to the bottom of the reversing plunger 202, a one-way valve 206 is arranged inside the reversing plunger 202, a channel e1207 is fixedly connected to the top of the reversing plunger 202, a channel g1208 is arranged on the surface of the channel e1207, a channel f1209 is fixedly connected to the surface of the channel g1208, a cavity a1210 is arranged inside the placement groove 201, a cavity a2211 is arranged inside the placement groove 201, an oil inlet joint 212 is fixedly connected to the top of the channel p1203, and a first annular groove 213 is fixedly connected to the bottom of the channel e1207.

[0033] The placement groove 201 is disposed inside the mounting table 101 .

[0034] There are two placement grooves 201, which are symmetrically evenly distributed on both sides with respect to the center of the surface of the mounting platform 101. Channels p1203 and channels p2204 are symmetrically evenly distributed on the top ends of both sides with respect to the center of the surface of the reversing plunger 202. There are two channels c1205, which are symmetrically evenly distributed on both sides with respect to the center of the surface of the reversing plunger 202.

[0035] The metering plunger 301 mechanism 3 includes a metering plunger 301, a bolt 302 is threadedly connected to the surface of the metering plunger 301, a channel g2303 is fixedly connected to the top of the metering plunger 301, a second annular groove 304 is opened at the bottom of the channel g2303, a cavity b1305 is arranged on the surface of the metering plunger 301, and a cavity b2306 is arranged on the surface of the metering plunger 301.

[0036] The metering plunger 301 is disposed inside the mounting platform 101 , and the metering plunger 301 is connected to the reversing plunger 202 via a channel c1205 .

[0037] There are two metering plungers 301, which are evenly and symmetrically distributed on both sides of the center of the surface of the mounting platform 101. There are two channels g2303, which are evenly and symmetrically distributed on both sides of the center of the surface of the metering plunger 301. The cavities b1305 and b2306 are evenly and symmetrically distributed on the tops of both sides of the center of the surface of the metering plunger 301.

[0038] The implementation principle of a two-line distributor in the embodiment of the present application is as follows: the working principle is the same as that of the known two-line distributor, and both use pressure oil to move the plunger for reversing and displacement metering. Control the front solenoid valve, channel p1203 is connected to the pressure oil, and channel p2204 is connected back to the oil tank. The pressure oil enters the chamber a1210, pushing the reversing plunger 202 assembly to move to the right. After the reversal is in place, the pressure oil in chamber a1210 and channel P1 is connected to chamber b1305 through channel c1205, and the metering plunger 301 moves to the right, pushing the lubricating oil in chamber b2306 through the annular groove on the reversing plunger 202 assembly to the right oil outlet, and an oil discharge is completed at this time. The solenoid valve is reversed, and the channel P2204 is connected to the pressure oil. The pressure oil enters the chamber a2211, pushing the reversing plunger 202 assembly to move to the left. After the reversal is in place, the pressure oil in the chamber a2211 and the channel P2 is connected to the chamber b2306 through the channel c2. The metering plunger 301 moves to the left, pushing the lubricating oil in the chamber b1305 through the second annular groove on the reversing plunger 202 assembly to reach the left oil outlet 103. At this time, one oil discharge is completed.

[0039] The dual-line distributor is designed with a reversing valve plunger assembly, wherein the reversing plunger 202 is a hollow structure (central channel), and both ends are equipped with a one-way valve 206 assembly, which has a reverse sealing effect. When high-pressure oil is continuously input into p1, that is, when both chamber a1210 and chamber b1305 are pressure-maintained, there are two leakage paths for the high-pressure oil. Leakage path one refers to the leakage of the a1 high-pressure oil through the gap between the reversing plunger 202 assembly and the valve body 106 to the first annular groove 213 on the reversing plunger 202 assembly, and then entering the central channel d1 of the reversing plunger 202 and converging to the right; leakage path two refers to the leakage of the b1 chamber high-pressure oil through the gap between the metering plunger 301 and the valve body 106 to the channel g1303, and the channel g1303 is connected to the channel e1207 through the channel f1209, and also enters the central channel d1 of the reversing plunger 202 through the first annular groove 213 on the reversing plunger 202 assembly and converging to the right. The lubricating oil leaked from the two paths converges and pushes open the right one-way valve 206 in the reversing plunger 202 assembly to enter the chamber a2211 and the channel P2. At this time, the channel P2 is connected to the oil tank and the pressure is 0. By means of the leakage diversion of the leakage channel mentioned above, the amount of high-pressure oil leaking to the left and right oil outlets will be greatly reduced, thereby reducing the pollution of the leaked oil to the environment.

[0040] The oil outlet joint has a built-in one-way valve 206 to ensure that the oil outlet has a certain pressure, so that the injection lubrication of thin oil lubricating oil can be achieved at the lubrication point.

[0041] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A two-line distributor, characterized in that: It comprises a main body mechanism (1), a reversing plunger mechanism (2) and a metering plunger mechanism (3), wherein the reversing plunger (202) mechanism (2) is located inside the main body mechanism (1), and the metering plunger mechanism (3) is located inside the main body mechanism (1); The main body mechanism (1) comprises a mounting platform (101), the top of the mounting platform (101) being fixedly connected to a left oil outlet joint (102), the top of the left oil outlet joint (102) being provided with a left oil outlet (103), the top of the mounting platform (101) being fixedly connected to a right oil outlet joint (104), the top of the right oil outlet joint (104) being provided with a right oil outlet (105), the bottom of the mounting platform (101) being fixedly connected to a valve body (106), the valve body (106) being provided with a ball expansion plug (107) inside.

2. A two-wire distributor as claimed in claim 1, characterized in that: The left oil outlet joint (102) and the right oil outlet joint (104) are evenly distributed on both sides symmetrically with respect to the center of the surface of the mounting platform (101), two ball-expansion plugs (107) are provided, and the two ball-expansion plugs (107) are evenly distributed on both sides symmetrically with respect to the center of the surface of the mounting platform (101).

3. A two-wire distributor as claimed in claim 1, characterized in that: The reversing plunger mechanism (2) comprises a placement groove (201), a reversing plunger (202) is fixedly connected inside the placement groove (201), a channel p1 (203) is provided on the surface of the reversing plunger (202), a channel p2 (204) is provided on the surface of the reversing plunger (202), a channel c1 (205) is fixedly connected to the bottom of the reversing plunger (202), a one-way valve (206) is provided inside the reversing plunger (202), and a channel e1 (207) is fixedly connected to the top of the reversing plunger (202). The surface of the channel e1 (207) is provided with a channel g1 (208), the surface of the channel g1 (208) is fixedly connected with a channel f1 (209), the interior of the placement groove (201) is provided with a cavity a1 (210), the interior of the placement groove (201) is provided with a cavity a2 (211), the top of the channel p1 (203) is fixedly connected with an oil inlet joint (212), and the bottom of the channel e1 (207) is fixedly connected with a first annular groove (213).

4. A two-wire distributor as claimed in claim 3, characterized in that: The placement groove (201) is arranged inside the mounting platform (101).

5. A two-wire distributor as claimed in claim 3, characterized in that: The number of the placement grooves (201) is two, and the two placement grooves (201) are symmetrically evenly distributed on both sides with respect to the center of the surface of the mounting platform (101); the channels p1 (203) and the channels p2 (204) are symmetrically evenly distributed on the top ends of both sides with respect to the center of the surface of the reversing plunger (202); the number of the channels c1 (205) is two, and the two channels c1 (205) are symmetrically evenly distributed on both sides with respect to the center of the surface of the reversing plunger (202).

6. A two-wire distributor as claimed in claim 1, characterized in that: The metering plunger (301) mechanism (3) comprises a metering plunger (301), a bolt (302) being threadedly connected to the surface of the metering plunger (301), a channel g2 (303) being fixedly connected to the top of the metering plunger (301), a second annular groove (304) being provided at the bottom of the channel g2 (303), a cavity b1 (305) being provided on the surface of the metering plunger (301), and a cavity b2 (306) being provided on the surface of the metering plunger (301).

7. A two-wire distributor as claimed in claim 6, characterized in that: The metering plunger (301) is arranged inside the mounting platform (101), and the metering plunger (301) is connected to the reversing plunger (202) via a channel c1 (205).

8. A two-wire distributor as claimed in claim 6, characterized in that: The number of the metering plungers (301) is two, and the two metering plungers (301) are evenly distributed on both sides symmetrically with respect to the center of the surface of the mounting platform (101); the number of the channels g2 (303) is two, and the two channels g2 (303) are evenly distributed on both sides symmetrically with respect to the center of the surface of the metering plunger (301); the cavities b1 (305) and the cavities b2 (306) are evenly distributed on the top ends of both sides symmetrically with respect to the center of the surface of the metering plunger (301).

Images