Dual line lubricant dispensing device

Abstract

The utility model relates to a double -line lubricant distribution device, it includes fixed seat and the upper valve block and lower valve block of setting respectively in fixed seat both sides, be provided with metering pipeline, oil outlet pipeline and reversing pipeline in the upper valve block and lower valve block respectively, metering pipeline has the metering plunger hole L, is provided with the metering plunger in the metering plunger hole L, reversing pipeline has the reversing plunger hole H, is provided with the reversing plunger in the reversing plunger hole H, is connected with the indicating rod outside the metering plunger, the utility model discloses reasonable in design, compact structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to a dual-line lubricant dispensing device. Background Technology

[0002] Dual-line refers to dual-path output, and lubricant distribution refers to the output of lubricant.

[0003] Existing dual-line distributors use internal metering and directional valves sealed with sealing rings, which is prone to wear, aging, and reduced service life. Therefore, the structure of this utility model uses a honed fit, achieving a precision of μ level, and greatly improving wear resistance, pressure resistance, and stability. Existing technology has a nested structure that cannot add a visual indicator rod or monitor the distributor's operating status in real time. The structure of this utility model separates the metering and directional valve bodies, thus adding an indicator function.

[0004] According to the search, the existing dual-line dispenser discloses the following technology: it includes a servo valve block and a metering lubricant head. The metering lubricant head includes a vertical outer shell, an inner cavity is formed inside the outer shell, and a metering sleeve accommodating cavity is formed in the gap between the two.

[0005] Compared to existing technologies, this utility model patent primarily addresses the shortcomings of lubricant supply devices, such as low pressure resistance, short lifespan, inability to visually monitor lubricant injection, and poor reliability. Its structure is different, making it more reliable, with higher pressure resistance, longer lifespan, and allowing for visual monitoring. It is suitable for lubricant distribution in dual-line lubrication systems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a dual-line lubricant dispensing device.

[0007] To solve the above problems, the technical solution adopted by this utility model is as follows: To achieve continuous lubrication supply, a dual-line lubricant distribution device includes a fixed base and valve blocks respectively disposed on the fixed base; the valve blocks are connected to a metering pipeline, a lubricant outlet pipeline and a reversing pipeline; The valve block includes an upper valve block and a lower valve block with the same structure on both sides of the fixed seat; The upper valve block is equipped with an upper metering pipeline, an upper lubricant outlet pipeline, and an upper reversing pipeline. The lower valve block is equipped with a lower metering pipeline, a lower lubricant outlet pipeline, and a lower reversing pipeline. Metering pipeline and liquid circuit connection to reversing pipeline; The reversing pipeline fluid circuit connects to the lubricant pipeline; Differential setting of upper and lower valve blocks; that is When lubricant is added to the upper valve block, the lower valve block releases pressure and discharges the lubricant. When lubricant is added to the lower valve block, the upper valve block releases pressure and discharges the lubricant. The metering pipeline has a metering cavity L, and a metering plunger is installed in the metering cavity L; The reversing pipeline has a reversing plunger cavity; A reversing plunger is installed in the inner cavity of the reversing plunger.

[0008] As a further improvement to the above technical solution: To reduce volume and enable continuous operation of dual lines, lubricant holes A and B are provided diagonally on one side of the fixed base for connecting an external lubricant supply source. Lubricant passage holes A and B are arranged horizontally; Lubricant passage holes A and B are located at the upper left and lower right corners, respectively; The fixed seat is provided with corresponding annular grooves OA and G, which are respectively connected to the lubricant passage hole A or B; Lubricant channels D and V are provided at the front and rear of the fixed seat; Lubricant paths D and V are connected to lubricant holes B and A, respectively. Lubricant passage holes A and B are horizontally positioned on the left and right sides within the fixed base; Lubricant passages A and B correspond to lubricant paths D and G, respectively. Lubricant path V is connected to annular groove OA; Lubricant path D is connected to annular groove G; The fixed base has a lubricant path C that is vertically connected to the lubricant path D; Vertical channels R and C, respectively connecting the lubricant paths D and V, are provided in the fixed base; There is a lubricant passage E in the lower valve block that is vertically connected to the lubricant passage C; There is a lubricant passage N in the upper valve block that is vertically connected to the lubricant passage R; Lubricant path N and lubricant path E are respectively connected to oblique holes F1 and F2; The reversing plunger has two reversing piston bodies; The two reversing piston bodies divide the reversing plunger cavity into three spaces: The reversing inner cavity W at the outer end of the reversing plunger, the reversing middle cavity U, and the reversing cavity H at the inner end; The oblique holes F1 and F2 are respectively connected to the reversing inner cavity W1 of the upper valve block and the reversing inner cavity W2 of the lower valve block; The reversing chamber H has reversing chambers H1 and H2 in the upper valve block and the lower valve block, respectively; Reversing cavities H1 and H2 are connected to annular grooves OA and G, respectively; The metering cavity L includes a rod-type metering cavity M and a rodless thrust cavity XC located on both sides of the metering plunger. Lubricant hole A connects to reversing cavity H; There are oblique channels J and Q connecting the inner cavity of the reversing plunger and the inner cavity of the metering L; When the lubricant is discharged, lubricant enters the reversing chamber H, pushing the reversing plunger upward. The rod-type metering cavity M is connected to the oblique channel J; The rodless thrust cavity XC connects to the oblique channel Q; The reversing middle cavity U is connected to the outlet check valve at the inlet of the lubricant pipeline through the oblique channel Y; The reversing middle cavity U and the reversing inner cavity W are either connected to the oblique channel J. Simultaneously... One of the reversing cavity H or the reversing middle cavity U is connected to the oblique channel Q; The reversing middle cavity U is connected to the lubricant path Y.

[0009] When a valve block discharges lubricant... The reversing cavity H expands with lubricant, pushing the reversing plunger to move, the reversing inner cavity W is compressed, and the oblique channel J connects with the reversing middle cavity U; the lubricant in the reversing middle cavity U enters the lubricant path Y and is discharged; At the same time, the reversing cavity H is connected to the oblique channel Q, the lubricant externally pushes the metering plunger, the rodless thrust inner cavity XC expands, and the metered lubricant in the rod metering cavity M enters the reversing middle cavity U through the oblique channel J; Then lubricant is added to the other valve block; The reversing cavity W expands, pushing the reversing plunger to move, and the lubricant is unloaded and discharged after the reversing cavity H is compressed. The oblique channel J is disconnected from the reversing middle cavity U and connected to the reversing inner cavity W; The reversing middle cavity U is connected to the continuously compressed rodless thrust cavity XC through the oblique channel Q; the lubricant enters the rod metering cavity M through the oblique channel J to meter and store the lubricant.

[0010] Install an outlet check valve in the lubricant outlet pipeline.

[0011] An outlet connector is provided on the upper valve block, located outside the outlet check valve.

[0012] A reversing plunger plug is provided at the inner port of the reversing plunger.

[0013] A metering plunger plug is installed at the end of the metering cavity L.

[0014] An indicator plunger plug is provided at the outer end of the metering cavity L; The indicator rod passes through the center hole of the indicator plunger plug as a plunger rod. The indicator plunger plug is exposed on the upper valve block.

[0015] The metering cavity L is set vertically.

[0016] The lubricant outlet line and the inner cavity of the reversing plunger are parallel to and offset from the metering inner cavity L; The inner cavity of the reversing plunger is separately configured relative to the lubricant outlet pipeline and the metering inner cavity L; An O-ring is provided between the fixed seat and the upper valve block for positioning and fitting; An indicator rod is connected to the outside of the metering plunger. A sealing gasket is provided between the fixed seat and the upper valve block channel; a Y-ring is provided between the indicator plunger plug and the indicator rod.

[0017] This utility model features a clever differential design that eliminates idle stroke, enabling continuous pumping of lubricant (oil, grease). Its design is reasonable, its structure highly reliable, and its oil circuits are rationally distributed, achieving static continuous operation. It changes the traditional nested structure of various pipelines, facilitating honing of the channels and improving surface finish and precision. It also boasts strong wear resistance and pressure resistance. Furthermore, its valve stem operates flexibly with low back pressure, reducing unnecessary work and system heat generation.

[0018] This utility model allows for visual monitoring; it is low in cost, sturdy and durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact in structure and easy to use.

[0019] This utility model separates metering and reversing; it can be equipped with a visual structure, and the discharge range is flexible and varied; the honed structure greatly improves its pressure resistance and wear resistance; through the improved design of each internal pipeline (through hole, channel), it greatly reduces the external volume, which is an important technical indicator in the field of valve body, and facilitates modular design and installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the fixed base of this utility model.

[0021] Figure 2 This is a three-dimensional structural diagram of the fixing base of this utility model.

[0022] Figure 3 This is a top view of the fixed base and a schematic diagram of the structure in the XX direction of this utility model.

[0023] Figure 4 This is a right view of the fixed base and a schematic diagram of the structure in direction II of this utility model.

[0024] Figure 5 This is a left view of the fixed base of this utility model and a schematic diagram of its usage structure in the TT direction.

[0025] Figure 6 This is a bottom view of the fixed base and a schematic diagram of the SS-direction structure of this utility model.

[0026] The components are: 1. Fixed seat; 2. Upper valve block; 3. Metering plunger plug; 4. O-ring; 5. Metering plunger; 6. Indicating plunger plug; 7. Indicating rod; 8. Y-ring; 9. Connecting outlet connector; 10. Outlet check valve; 11. Reversing plunger; 12. Sealing gasket; 13. Reversing plunger plug; 14. Lubricant outlet line; 15. Metering line; 16. Reversing line; 17. Lower valve block. Detailed Implementation

[0027] like Figure 1-6 As shown, the dual-line lubricant dispensing device of this embodiment includes a fixed base 1 and valve blocks respectively disposed on the fixed base 1; the valve blocks are connected to a metering pipeline 15, a lubricant outlet pipeline 14 and a reversing pipeline 16; the pipelines here can be channels.

[0028] The valve block includes an upper valve block 2 and a lower valve block 17 on both sides of the fixed base 1, which have the same structure; the upper and lower are described with reference to the attached drawings for ease of description. The upper valve block 2 is respectively equipped with an upper metering pipeline, an upper lubricant outlet pipeline 14 and an upper reversing pipeline; The lower valve block 17 is respectively equipped with a lower metering pipeline, a lower lubricant outlet pipeline 14 and a lower reversing pipeline; Metering line 15 connects to reversing line 16; Reversing pipe 16 is connected to lubricant pipe 14; The upper valve block 2 and the lower valve block 17 are differentially configured; that is... When lubricant is added to the upper valve block 2, the lower valve block 17 releases pressure and discharges the lubricant. When lubricant is added to the lower valve block 17, the upper valve block 2 releases pressure and discharges the lubricant. The metering pipeline 15 has a metering cavity L, and a metering plunger 5 is installed in the metering cavity L; The reversing line 16 has a reversing plunger cavity; A reversing plunger 11 is provided in the inner cavity of the reversing plunger.

[0029] Lubricant holes A and B are provided diagonally on one side of the fixed base 1 for connecting an external lubricant supply source. To provide power, lubricant passage holes A and B are arranged laterally; Lubricant passage holes A and B are located at the upper left and lower right corners, respectively; The fixed base 1 is provided with corresponding annular grooves OA and G, which are respectively connected to the lubricant passage hole A or B; Lubricant channels D and V are provided at the front and rear of the fixed base 1; Lubricant paths D and V are connected to lubricant holes B and A, respectively. Lubricant passage holes A and B are horizontally arranged in the fixed base 1; Lubricant passages A and B correspond to lubricant paths D and G, respectively. Lubricant path V is connected to annular groove OA; Lubricant path D is connected to annular groove G; There is a lubricant path C in the fixed seat 1 that is vertically connected to the lubricant path D; Vertical channels R and C, respectively connecting lubricant paths D and V, are provided in the fixed base 1; The lower valve block 17 has a lubricant passage E that is vertically connected to the lubricant passage C; There is a lubricant passage N in the upper valve block 2 that is vertically connected to the lubricant passage R; Lubricant path N and lubricant path E are respectively connected to oblique holes F1 and F2; The reversing plunger 11 has two reversing piston bodies; The two reversing piston bodies divide the reversing plunger cavity into three spaces: The reversing inner cavity W at the outer end of the reversing plunger 11, the reversing middle cavity U, and the reversing cavity H at the inner end; The oblique holes F1 and F2 are respectively connected to the reversing inner cavity W1 of the upper valve block 2 and the reversing inner cavity W2 of the lower valve block 17; The reversing chambers H1 and H2 are respectively located in the upper valve block 2 and the lower valve block 17; Reversing cavities H1 and H2 are connected to annular grooves OA and G, respectively; The metering cavity L includes a rod-type metering cavity M and a rodless thrust cavity XC located on both sides of the metering plunger 5. Lubricant hole A connects to reversing cavity H; There are oblique channels J and Q connecting the inner cavity of the reversing plunger and the inner cavity of the metering L; When the lubricant is discharged, lubricant enters the reversing cavity H, pushing the reversing plunger 11 upward. The rod-type metering cavity M is connected to the oblique channel J; The rodless thrust cavity XC connects to the oblique channel Q; The reversing middle cavity U is connected to the outlet check valve 10 at the inlet of the lubricant pipeline 14 through the oblique channel Y; The reversing middle cavity U and the reversing inner cavity W are either connected to the oblique channel J. Simultaneously... One of the reversing cavity H or the reversing middle cavity U is connected to the oblique channel Q; The reversing middle cavity U is connected to the lubricant path Y.

[0030] When a valve block discharges lubricant... The reversing cavity H expands with lubricant, pushing the reversing plunger 11 to move, the reversing inner cavity W is compressed, and the oblique channel J connects with the reversing middle cavity U; the lubricant in the reversing middle cavity U enters the lubricant path Y and is discharged. At the same time, the reversing cavity H is connected to the oblique channel Q, the lubricant external metering plunger 5, the rodless thrust inner cavity XC expands, and the metered lubricant in the rod metering cavity M enters the reversing middle cavity U through the oblique channel J; Then lubricant is added to the other valve block; The reversing cavity W expands, pushing the reversing plunger 11 to move, and the lubricant is unloaded and discharged after the reversing cavity H is compressed. The oblique channel J is disconnected from the reversing middle cavity U and connected to the reversing inner cavity W; The reversing middle cavity U is connected to the continuously compressed rodless thrust cavity XC through the oblique channel Q; the lubricant enters the rod metering cavity M through the oblique channel J to meter and store the lubricant.

[0031] To achieve back pressure and sealing, an outlet check valve 10 is installed in the lubricant outlet line 14.

[0032] An outlet connector 9 is provided on the upper valve block 2, located outside the outlet check valve 10.

[0033] A reversing plunger plug 13 is provided at the inner port of the reversing plunger.

[0034] A metering plunger plug 3 is installed at the end of the metering cavity L.

[0035] An indicator plunger plug 6 is provided at the outer end of the metering cavity L; The indicator rod 7 passes through the center hole of the indicator plunger plug 6 as a plunger rod; The indicator plunger plug 6 is exposed on the upper valve block 2.

[0036] The metering cavity L is set vertically.

[0037] The lubricant outlet line 14, the inner cavity of the reversing plunger and the metering inner cavity L are parallel and offset; The inner cavity of the reversing plunger is separately set relative to the lubricant outlet line 14 and the metering inner cavity L; An O-ring 4 is provided between the fixed seat 1 and the upper valve block 2 for positioning and fitting; An indicator rod 7 is connected to the outside of the metering plunger 5 to provide indication and make it easier to see. To achieve a seal, a sealing gasket 12 is provided between the fixed seat 1 and the upper valve block 2; a Y-ring 8 is provided between the indicator plunger plug 6 and the indicator rod 7.

[0038] The fixed seat 1 realizes the design and distribution of the main oil circuits and also provides support.

[0039] The valve block discharges after metering, the metering plunger plug 3 achieves process sealing, and the metering plunger 5, the indicating plunger plug 6, and the indicating rod 7 achieve metering indication and reversal.

[0040] Although each item is priced according to standard standards, this utility model is a practical invention because of its centralized and reasonable design, arrangement, and ingenious utilization of the product.

[0041] When a valve block discharges lubricant... The reversing cavity H expands with lubricant, pushing the reversing plunger 11 to move, the reversing inner cavity W is compressed, and the oblique channel J connects with the reversing middle cavity U; the lubricant in the reversing middle cavity U enters the lubricant path Y and is discharged. At the same time, the reversing cavity H is connected to the oblique channel Q, the lubricant is pushed outward, the rodless thrust cavity XC expands, and the metered lubricant in the rod metering cavity M enters the reversing middle cavity U through the oblique channel J; Then lubricant is added to the other valve block; The reversing cavity W expands, pushing the reversing plunger 11 to move, and the lubricant is unloaded and discharged after the reversing cavity H is compressed. The oblique channel J is disconnected from the reversing middle cavity U and connected to the reversing inner cavity W; The reversing middle cavity U is connected to the continuously compressed rodless thrust cavity XC through the oblique channel Q; the lubricant enters the rod metering cavity M through the oblique channel J to meter and store the lubricant.

[0042] Taking the above valve body oil supply as an example, the working process is described as follows: Among them, A-OA-H1, C; H1-upper valve body reversing plunger 11 moves upward-Q1-XC1-upper valve body metering plunger 5 moves upward; M1-J1-U1-Y1-one-way valve discharge; W1-F1-NRDGB; C-F2-W2-Lower valve body reversing plunger 11 moves to seal Y2-J2-M2 oil storage fluid; H2-G—B.

[0043] In a specific application, the pressure relief lubricant is removed via lubricant path H, lubricant path G, and lubricant path B. Specifically, the lubricant enters through lubricant path A, splitting into two paths: D, E, and F. This pushes the reversing plunger 11 to move. At this time, the lubricant enters through lubricant path Q into M, pushing the metering plunger 5. The lubricant at the top of the metering plunger 5 passes through L and then Y, exiting from the outlet. Pushing the metering plunger 5, a metered amount of lubricant passes through lubricant path M, reaches lubricant path Q, and is discharged through the outlet check valve 10 and outlet connector 9. Simultaneously, depressurized lubricant passes through lubricant path H and lubricant path G, and is discharged from lubricant path B. This process continues, with lubricant paths A and B alternately reversing to complete the cyclic lubricant injection.

[0044] This invention makes full use of the internal space of the valve body to achieve dual-line output. Through the internal arrangement of the pipeline and the separate assembly of the two valve blocks, the process is optimized, honing is facilitated, and assembly is convenient.

[0045] 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.

[0046] 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 dual line lubricant dispensing device characterized by: It includes a fixed base (1) and valve blocks respectively installed on the fixed base (1); the valve blocks are connected to a metering pipeline (15), a lubricant outlet pipeline (14) and a reversing pipeline (16). The valve block includes an upper valve block (2) and a lower valve block (17) with the same structure on both sides of the fixed seat (1); The upper valve block (2) is respectively equipped with an upper metering pipeline, an upper lubricant outlet pipeline (14) and an upper reversing pipeline; The lower valve block (17) is provided with a lower metering pipeline, a lower lubricant outlet pipeline (14) and a lower reversing pipeline respectively; Metering pipeline (15) is connected to the reversing pipeline (16). The reversing pipeline (16) is connected to the lubricant pipeline (14). The upper valve block (2) and the lower valve block (17) are differentially configured; that is... When lubricant is added to the upper valve block (2), the lower valve block (17) releases pressure and discharges lubricant; When lubricant is added to the lower valve block (17), the upper valve block (2) releases pressure and discharges lubricant; The metering pipeline (15) has a metering cavity L, and a metering plunger (5) is installed in the metering cavity L. The reversing line (16) has a reversing plunger cavity; A reversing plunger (11) is provided in the inner cavity of the reversing plunger.

2. The dual rail lubricant dispensing device of claim 1, wherein: Lubricant holes A and B are provided diagonally on one side of the fixed base (1) for connecting an external lubricant supply source; Lubricant passage holes A and B are arranged horizontally; Lubricant passage holes A and B are located at the upper left and lower right corners, respectively; The fixed seat (1) is provided with corresponding annular grooves OA and G, which are respectively connected to the lubricant passage holes A or B; Lubricant paths D and V are provided at the front and rear of the fixed seat (1); Lubricant paths D and V are connected to lubricant holes B and A, respectively. Lubricant passage holes A and B are horizontally arranged in the fixed seat (1); Lubricant passages A and B correspond to lubricant paths D and G, respectively. Lubricant path V is connected to annular groove OA; Lubricant path D is connected to annular groove G; There is a lubricant path C in the fixed seat (1) that is vertically connected to the lubricant path D; Vertical channels R and C, respectively connecting the lubricant paths D and V, are provided in the fixed seat (1); The lower valve block (17) has a lubricant passage E that is vertically connected to the lubricant passage C; There is a lubricant path N in the upper valve block (2) that is vertically connected to the lubricant path R; Lubricant path N and lubricant path E are respectively connected to oblique holes F1 and F2.

3. The dual rail lubricant dispensing device of claim 2, wherein: The lubricant outlet pipeline (14) and the inner cavity of the reversing plunger are parallel to and offset from the inner cavity of the metering chamber L.

4. The dual rail lubricant dispensing device of claim 1, wherein: An outlet check valve (10) is installed in the lubricant outlet line (14).

5. The dual rail lubricant dispensing device of claim 4, wherein: An outlet connector (9) located outside the outlet check valve (10) is provided on the upper valve block (2).

6. The dual rail lubricant dispensing device of claim 2, wherein: The reversing plunger (11) has two reversing piston bodies; The two reversing piston bodies divide the reversing plunger cavity into three spaces: The reversing inner cavity W at the outer end of the reversing plunger (11), the reversing middle cavity U, and the reversing cavity H at the inner end; The oblique holes F1 and F2 are respectively connected to the reversing inner cavity W1 of the upper valve block (2) and the reversing inner cavity W2 of the lower valve block (17); The reversing chambers H1 and H2 are located in the upper valve block (2) and the lower valve block (17), respectively; Reversing cavities H1 and H2 are connected to annular grooves OA and G, respectively; The metering cavity L includes a rod-type metering cavity M and a rodless thrust cavity XC located on both sides of the metering plunger (5); Lubricant hole A connects to reversing cavity H; There are oblique channels J and Q connecting the inner cavity of the reversing plunger and the inner cavity of the metering L; When the lubricant is discharged, the lubricant enters the reversing cavity H, pushing the reversing plunger (11) upward. The rod-type metering cavity M is connected to the oblique channel J; The rodless thrust cavity XC connects to the oblique channel Q; The reversing middle cavity U is connected to the outlet check valve (10) at the inlet of the lubricant pipeline (14) through the oblique channel Y. The reversing middle cavity U and the reversing inner cavity W are either connected to the oblique channel J. Simultaneously... One of the reversing cavity H or the reversing middle cavity U is connected to the oblique channel Q; The reversing middle cavity U is connected to the lubricant path Y.

7. The dual rail lubricant dispensing device of claim 4, wherein: A metering plunger plug (3) is provided at the end of the metering cavity L.

8. The dual rail lubricant dispensing device of claim 4, wherein: An indicator plunger plug (6) is provided at the outer end of the metering cavity L. The indicator rod (7) passes through the center hole of the indicator plunger plug (6) as a plunger rod; The indicator plunger plug (6) is exposed on the upper valve block (2).

9. The dual rail lubricant dispensing device of claim 4, wherein: The metering cavity L is set vertically.

10. The dual-line lubricant dispensing device according to claim 4, characterized in that: The inner cavity of the reversing plunger is separated from the lubricant outlet pipeline (14) and the metering inner cavity L; An O-ring (4) is provided between the fixed seat (1) and the upper valve block (2) for positioning and fitting. An indicator rod (7) is connected to the outside of the metering plunger (5); A sealing gasket (12) is provided between the channel of the fixed seat (1) and the upper valve block (2); a Y-ring (8) is provided between the indicator plunger plug (6) and the indicator rod (7).

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