Push disc type lubricant supply device

Abstract

The utility model relates to push disc type lubricant supply device, it includes main valve body and sets up the oil storage tank subassembly on main valve body, main valve body left end is connected with rear end valve body, main valve body has lubricating part, is provided with the intercommunication cavity H and a plurality of measurement cavity G with intercommunication cavity H intercommunication in lubricating part, the oil storage tank subassembly lower end intercommunication intercommunication cavity H upper end, the plunger has the horizontal activity in each measurement cavity G, is provided with hydraulic power part on rear end valve body, the utility model discloses reasonable in design, compact structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to a push-plate type lubricant supply device. Background Technology

[0002] Electric grease lubrication pumps typically use a crank-connecting rod mechanism to drive the plunger in reciprocating motion to complete the oil suction and discharge process, serving as the pump source for the lubrication system. They have a complex structure, high failure rate, are prone to wear, have a large overall size, and slow response.

[0003] Improving traditional electric grease lubrication pumps to provide a lubrication supply device that is compact, highly integrated, low-noise, low-wear, and runs smoothly has become an urgent technical problem to be solved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a push-plate type lubricant supply device, which mainly solves the problems of large size, insufficient integration, inability to inject oil from multiple outlets at the same time, and low degree of automation of the lubricant supply device.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: To achieve multi-line oil injection, a push-plate type lubricant supply device includes a main valve body and an oil storage tank assembly disposed on the main valve body; The main valve body is connected to the rear valve body at the left end; The main valve body has a lubrication section; The lubrication section is provided with a connecting cavity H and several metering cavities G connected to the connecting cavity H; The lower end of the oil storage tank assembly is connected to the upper end of the connecting cavity H; A plunger moves horizontally within each metering chamber G; A hydraulic power unit is installed on the rear valve body.

[0006] As a further improvement to the above technical solution: To enable manual oil replenishment, an oil filler nozzle is provided on the main valve body, which communicates with the transverse channel of the connecting cavity H. An outlet connector is installed on the main valve body at the outlet of metering chamber G.

[0007] To enable simultaneous oil injection from multiple lines, an outlet check valve is installed at the outlet of metering chamber G to connect chamber H, which includes a vertical channel and a horizontal channel connected by a cross.

[0008] To achieve stable multi-line output, the vertical channel is narrower than the horizontal channel.

[0009] To achieve continuous power drive, the hydraulic power unit includes a hydraulic cavity provided between the main valve body and the rear valve body; A plunger push plate is installed in the hydraulic cavity; A stopper head is provided at the left end of the plunger; A reversing valve is installed on the rear valve body; A piston moves within the hydraulic cavity; The directional valve connects to the space on the left side of the piston within the hydraulic cavity; At least the left end of the plunger push plate is in contact with the right end of the plunger head; A return spring is provided between the plunger push plate and the bottom surface of the hydraulic cavity; A limit shaft is provided on the right side of the plunger push plate; There is an inlet connector on the rear valve body.

[0010] As a preferred option, the directional valve is a two-position three-way solenoid valve; A cycle monitoring sensor is installed on the rear valve body.

[0011] To achieve a compact structure, a groove is provided on the bottom surface of the hydraulic cavity to accommodate part of the return spring and / or the limit shaft; The reset spring is located between the right end of the limit shaft and the bottom surface of the hydraulic cavity.

[0012] To achieve dynamic sealing, a piston seal is provided on the piston; A plunger seal is provided in the metering chamber G, and a cover plate is provided at the left end of the plunger seal; Fixing bolts are installed on the rear valve body.

[0013] To improve integration, a fluid inlet chamber E and a fluid outlet chamber F are respectively provided on the rear valve body; Fluid inlet E inlet connector; The fluid outlet cavity F connects to the left end of the hydraulic inner cavity; The fluid inlet chamber E and the fluid outlet chamber F are connected or disconnected through a two-position three-way solenoid valve.

[0014] To reduce vibration and adjust for uneven wear, several stabilizing spring components are distributed on the left end face of the piston; In its natural state, the stabilizing spring is exposed on the left end face of the piston; A countersunk hole is provided on the left end face of the piston; The right end of the stabilizing spring is positioned within the countersunk hole. A stepped hole is provided at the end of the countersunk section.

[0015] This utility model features a flexible and stable driving method, a more compact structure, higher integration, more reliable principle, and a more convenient and faster lubricant filling method. It is also smaller in size and suitable for precision lubrication of high-precision CNC machining equipment. Its design is reasonable, low in cost, sturdy and durable, safe and reliable, simple to operate, time-saving, labor-saving, cost-saving, compact in structure, and easy to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main valve body structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal oil injection structure of the main valve body of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal oil suction structure of the main valve body of this utility model.

[0019] Figure 4 This is a schematic diagram of the vertical channel structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the improved internal oil injection structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the improved vertical channel structure of this utility model.

[0022] The components include: 1. Main valve body; 2. Oil storage tank assembly; 3. Outlet connector; 4. Outlet check valve; 5. Plunger; 6. Return spring; 7. Plunger push plate; 8. Plunger seal; 9. Cover plate; 10. Limiting shaft; 11. Piston; 12. Piston seal; 13. Rear valve body; 14. Circulation monitoring sensor; 15. Two-position three-way solenoid valve; 16. Inlet connector; 17. Fixing bolt; 18. Oil filler nozzle; 19. Vertical channel; 20. Horizontal channel; 21. Countersunk section; 22. Stabilizing spring; 23. Stepped hole.

[0023] Fluid inlet chamber E; fluid outlet chamber F; metering chamber G; connecting chamber H. Detailed Implementation

[0024] 1. Main valve body; 2. Oil storage tank assembly; 3. Outlet connector; 4. Outlet check valve; 5. Plunger; 6. Return spring; 7. Plunger push plate; 8. Plunger seal; 9. Cover plate; 10. Limiting shaft; 11. Piston; 12. Piston seal; 13. Rear valve body; 14. Circulation monitoring sensor; 15. Two-position three-way solenoid valve; 16. Inlet connector; 17. Fixing bolt; 18. Filler nozzle; 19. Vertical channel; 20. Horizontal channel; 21. Countersunk section; 22. Stabilizing spring; 23. Stepped hole. like Figure 1-6 As shown, the push-plate type lubricant supply device of this embodiment includes a main valve body 1 and an oil storage tank assembly 2 disposed on the main valve body 1; as a basic structure, it realizes the storage and output of grease.

[0025] The left end of the main valve body 1 is connected to the rear valve body 13, enabling power drive.

[0026] For ease of description, the main valve body 1 has a lubrication section to enable the multiple outputs of grease from the oil storage tank; The lubrication section is provided with a connecting cavity H and several metering cavities G connected to the connecting cavity H, preferably four; The lower end of oil storage tank assembly 2 is connected to the upper end of connecting cavity H; A plunger 5 moves horizontally in each metering chamber G, thereby achieving reciprocating motion to realize metered oil supply.

[0027] A hydraulic power unit is provided on the rear valve body 13, which is simpler, more convenient and more flexible than existing technologies.

[0028] A filler nozzle 18 is provided on the main valve body 1, which communicates with the transverse channel 20 of the connecting cavity H; An outlet connector 3 is installed on the main valve body 1 at the outlet of the metering chamber G, which facilitates oil filling.

[0029] An outlet check valve 4 is installed at the outlet of the metering chamber G, connecting the chamber H, which includes a vertical channel 19 and a horizontal channel 20 connected in a cross shape, thereby realizing the internal grease transport.

[0030] The straight channel 19 is narrower than the transverse channel 20. This utility model solves the problem of high resistance during negative pressure oil suction by cleverly planning the channels, thereby creating a large negative pressure in the transverse channel, allowing the grease to better fill the entire channel. It is particularly suitable for high viscosity conditions and reduces resistance.

[0031] The hydraulic power unit includes a hydraulic cavity disposed between the main valve body 1 and the rear valve body 13; A plunger push plate 7 is provided in the hydraulic cavity; A plug head is provided at the left end of plunger 5; A reversing valve is provided on the rear valve body 13; A piston 11 moves within the hydraulic cavity; The reversing valve connects to the left side space of piston 11 in the hydraulic cavity, thereby enabling continuous operation.

[0032] At least the left end of the plunger push plate 7 is in contact with the right end of the plunger head of the plunger 5; A return spring 6 is provided between the plunger push plate 7 and the bottom surface of the hydraulic cavity; A limit shaft 10 is provided on the right side of the plunger push plate 7 to achieve a guiding function and facilitate installation.

[0033] There is an inlet connector 16 on the rear valve body 13.

[0034] The directional valve adopts a two-position three-way solenoid valve 15; A circulation monitoring sensor 14 is installed on the rear valve body 13.

[0035] A groove is provided on the bottom surface of the hydraulic cavity to accommodate part of the return spring 6 and / or the limiting shaft 10; The reset spring 6 is located between the right end of the limit shaft 10 and the bottom surface of the hydraulic cavity.

[0036] A piston seal 12 is provided on the piston 11; A plunger seal 8 is provided in the metering chamber G, and a cover plate 9 is provided at the left end of the plunger seal 8; A fixing bolt 17 is provided on the rear valve body 13.

[0037] A fluid inlet chamber E and a fluid outlet chamber F are respectively provided on the rear valve body 13; Fluid inlet E inlet connector 16; The fluid outlet cavity F connects to the left end of the hydraulic inner cavity; The fluid inlet chamber E and the fluid outlet chamber F are connected or disconnected through a two-position three-way solenoid valve 15.

[0038] Several stabilizing springs 22 are distributed on the left end face of the piston 11; they correspond to the plunger and can effectively stabilize the piston. In its natural state, the stabilizing spring 22 is exposed on the left end face of the piston 11; it adopts a spring structure, which can effectively achieve buffering. Compared with a traditional single spring, it can reduce vibration and make the worn piston stable.

[0039] A countersunk hole 21 is provided on the left end face of the piston 11; The right end of the stabilizing spring component 22 is located in the countersunk hole portion 21, reducing the overall volume.

[0040] A stepped hole 23 is provided at the end of the countersunk hole section 21.

[0041] like Figure 1-6 Process description: The upper end of the main valve body 1 is equipped with an oil storage tank assembly 2; an outlet check valve 4 and an oil outlet connector 3 are provided on one side. The main valve body 1 has a metering chamber G and a connecting chamber H inside, which connect the oil storage tank assembly 2 and the oil outlet check valve 4; the oil filler 18 is set on the main valve body 1 and connected to the connecting chamber H; the plunger seal 8 is set in the sealing groove on the main valve body 1 and fixed by the cover plate 9; the limit shaft 10 is set on the plunger push plate 7, and the plunger 5 is set on the plunger push plate 7; the return spring 6 is set on the limit shaft 10, and the limit shaft 10, the plunger push plate 7, the plunger 5, and the return spring 6 are integrally set on the main valve body 1; Two-position three-way solenoid valve 15 is located at the upper end of the rear valve body 13 and is connected to the fluid inlet chamber E and the fluid outlet chamber F; inlet connector 16 is located at the inlet of the rear valve body 13; circulation monitoring sensor 14 is located on the rear valve body 13. The piston seal 12 is disposed on the piston 11, and the piston 11 is disposed inside the rear valve body 13; the rear valve body 13 is fixed to the main valve body 1 by fixing bolts.

[0042] Work process description: When fluid enters chamber E through inlet connector 16, the two-position three-way solenoid valve 15 is de-energized. Piston 11 moves to the leftmost position under the push of return spring 6. At this time, the lubricant in oil reservoir assembly 2 enters chamber G through chamber H. When plunger 5 moves to the left, chamber G forms a negative pressure vacuum, which facilitates the storage of lubricant. When the two-position three-way solenoid valve 15 is energized, fluid inlet chamber E and fluid outlet chamber F open. The fluid pushes piston 11 to the right, thereby pushing plunger 5 to the right. The metered lubricant in metering chamber G is metered out through check valve 4 and outlet connector 3. Circulation monitoring sensor 14 detects the left and right movements of piston 11 to complete the counting.

[0043] The driving method of this utility model is fluid drive, with a built-in reversing structure; this utility model has a circulation monitoring function; this utility model has a compact structure, high integration, small size, can inject oil at multiple points simultaneously, can reduce the use of distributors, effectively reduce costs and increase efficiency, and has a high degree of automation.

[0044] This utility model is described in detail for the purpose of making the disclosure clearer, and the prior art will not be listed one by one.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. It is obvious to those skilled in the art that multiple technical solutions of this utility model can be combined. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. All technical contents not described in detail in this utility model are publicly known technologies.

Claims

1. A push-plate type lubricant supply device, characterized in that: Includes a main valve body (1) and an oil storage tank assembly (2) disposed on the main valve body (1); The left end of the main valve body (1) is connected to the rear valve body (13); The main valve body (1) has a lubrication section; The lubrication section is provided with a connecting cavity H and several metering cavities G connected to the connecting cavity H; The lower end of the oil storage tank assembly (2) is connected to the upper end of the connecting cavity H; A plunger (5) moves horizontally in each metering chamber G; A hydraulic power unit is provided on the rear valve body (13).

2. The push-plate type lubricant supply device according to claim 1, characterized in that: An oil filler (18) is provided on the main valve body (1) and communicates with the transverse channel (20) of the connecting cavity H. An outlet connector (3) is installed on the main valve body (1) at the outlet of the metering chamber G.

3. The push-plate type lubricant supply device according to claim 1, characterized in that: An outlet check valve (4) is provided at the outlet of the metering chamber G. The connecting chamber H includes a vertical channel (19) and a horizontal channel (20) that are connected in a cross shape.

4. The push-plate type lubricant supply device according to claim 1, characterized in that: The vertical channel (19) is narrower than the horizontal channel (20).

5. The push-plate type lubricant supply device according to any one of claims 1-4, characterized in that: The hydraulic power unit includes a hydraulic cavity disposed between the main valve body (1) and the rear valve body (13); A plunger push plate (7) is provided in the hydraulic cavity; The plunger (5) has a plug head at its left end; A reversing valve is provided on the rear valve body (13); A piston (11) moves within the hydraulic cavity. The reversing valve connects to the space to the left of the piston (11) in the hydraulic cavity; At least the left end of the plunger push plate (7) is in contact with the right end of the plunger (5) plug head; A return spring (6) is provided between the plunger push plate (7) and the bottom surface of the hydraulic cavity; A limit shaft (10) is provided on the right side of the plunger push plate (7); There is an inlet connector (16) on the rear valve body (13).

6. The push-plate type lubricant supply device according to claim 5, characterized in that: The reversing valve adopts a two-position three-way solenoid valve (15); A cycle monitoring sensor (14) is installed on the rear valve body (13).

7. The push-plate type lubricant supply device according to claim 6, characterized in that: A groove is provided on the bottom surface of the hydraulic cavity to accommodate a portion of the return spring (6) and / or the limiting shaft (10); The reset spring (6) is located between the right end of the limit shaft (10) and the bottom surface of the hydraulic cavity.

8. The push-plate type lubricant supply device according to claim 7, characterized in that: A piston seal (12) is provided on the piston (11). A plunger seal (8) is provided in the metering chamber G, and a cover plate (9) is provided at the left end of the plunger seal (8). A fixing bolt (17) is provided on the rear valve body (13).

9. The push-plate type lubricant supply device according to claim 8, characterized in that: A fluid inlet chamber E and a fluid outlet chamber F are respectively provided on the rear valve body (13); Fluid inlet E inlet connector (16); The fluid outlet cavity F connects to the left end of the hydraulic inner cavity; The fluid inlet chamber E and the fluid outlet chamber F are connected or disconnected through a two-position three-way solenoid valve (15).

10. The push-plate type lubricant supply device according to claim 9, characterized in that: Several stabilizing spring components (22) are distributed on the left end face of the piston (11); In its natural state, the stabilizing spring (22) is exposed on the left end face of the piston (11); A countersunk hole (21) is provided on the left end face of the piston (11). The right end of the stabilizing spring component (22) is located in the countersunk hole (21); A stepped hole (23) is provided at the end of the countersunk section (21).

Images