Pneumatic quantitative grease injection pump with limiting mechanism

Abstract

The pneumatic quantitative grease injection pump with the limiting mechanism comprises a base table, universal wheels are installed on the left side and the right side of the bottom of the base table, driving columns are vertically installed on the left side and the right side of the upper surface of the base table, and telescopic sleeves are fixedly installed on the left side and the right side of the upper surface of the base table. A control box is arranged on the right side of the top face of the top frame, a pneumatic device is arranged in the middle of the top face of the top frame, a material conveying pipe is connected to the middle of the bottom of the pneumatic device, and an oil pressing disc is fixedly installed at the bottom end of the material conveying pipe. Shifting rods are arranged on the inner sides of the left side and the right side of the driving column, and the shifting rods are connected to limiting rods to form a limiting mechanism. According to the pneumatic quantitative grease injection pump with the limiting mechanism, limiting lifting is conducted on the limiting rod through the shifting rod, then the oil pressing disc is driven to conduct limiting downward pressing, quantitative grease injection is effectively conducted, and energy consumption and certain cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic grease injection pumps, in particular to a pneumatic quantitative grease injection pump with a limiting mechanism. Background Art

[0002] The pneumatic grease injection pump uses compressed air as the power source, and takes advantage of the large effective area ratio between the cylinder and the grouting cylinder, so that a higher injection pressure can be generated in the cylinder body with a smaller air pressure. The core components of the pneumatic grease injection pump include a pneumatic motor and a piston pump. Compressed air enters the pump through the filter, pushing the selector valve down, and then the gas enters the cylinder body through the channel to push the piston down. The plunger connected to the piston moves with the piston at the same time, and the plunger presses the oil in the cavity to the oil outlet through the one-way valve. When the plunger drops to the lower stroke, the selector valve closes and prevents compressed air from entering the cylinder body, and then the spring in the cylinder overcomes the air pressure and pushes the piston up, and the plunger also rises. At this time, the suction one-way valve opens to suck the oil into the cavity, and the gas is discharged from the muffler through the channel. However, there are still certain problems when using the existing pneumatic grease injection pump:

[0003] For example, an automatic quantitative grease injection device for a wind turbine with a publication number of CN106704801B has the following technical solution: including a controller, a platform scale, parts to be greased, an air compressor and a pneumatic grease injection pump. A grease storage barrel is provided above the platform scale, and a pneumatic grease injection pump is provided at the upper end of the grease storage barrel. A support is provided at one end of the platform scale, and a controller is installed at the upper end of the support. The controller includes a main control board, a 7-inch HMI display module, a pressure sensor module, a weight sensor module, a power module, a pneumatic grease injection pump control module, a data storage module, an input module, and an audio-visual alarm module. The present invention has its own fault diagnosis capability, can accurately control the amount of grease injection, does not require special personnel on duty, is more efficient than manual grease injection, and can also generate grease injection records; can display the grease injection progress in real time, and has breakpoint grease injection and audio-visual alarm functions. However, the cost of each module involved in the operation of the grease storage barrel by the existing grease injection device is relatively high. In order to ensure quantitative grease injection, simple limit processing cannot be performed, and the energy consumption of the grease injection process is relatively high.

[0004] In view of this, we conducted in-depth research on the above issues, which led to the present case.

[0005] In view of the above problems, an innovative design is carried out on the basis of the original grease injection device. Utility Model Content

[0006] The utility model aims to provide a pneumatic quantitative grease injection pump with a limiting mechanism to solve the problems of high cost and high energy consumption when quantitatively controlling a grease storage barrel in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A pneumatic quantitative grease injection pump with a limiting mechanism comprises a base platform, universal wheels are installed on both left and right sides of the bottom of the base platform, and driving columns are vertically installed on both left and right sides of the upper surface of the base platform, telescopic sleeves are fixedly installed on both left and right sides of the upper surface of the base platform, and the telescopic sleeves are located on the inner side of the driving column, a limiting rod is arranged on the upper part of the telescopic sleeve, and a top frame is horizontally installed on the top of the limiting rod, a control box is arranged on the right side of the top surface of the top frame, and a pneumatic device is arranged in the middle of the top surface of the top frame, a feed pipe is connected and installed in the middle of the bottom of the pneumatic device, and an oil pressure plate is fixedly installed on the bottom end of the feed pipe, and air pipes are arranged on both left and right sides of the upper surface of the oil pressure plate, and levers are arranged on the inner side of the left and right sides of the driving column, and the levers are connected to the limiting rods to form a limiting mechanism.

[0009] Preferably, a support block is fixedly installed on the inner side of the upper surface of the telescopic sleeve, and a ramp block is fixedly installed on the bottom of the support block close to the oil pressure plate.

[0010] By adopting the above technical solution, the support block can guide the upward and downward movement of the limit rod, and the inclined block at the bottom can provide guidance for the position movement of the shift rod to drive the limit rod to move.

[0011] Preferably, the limiting rod passes through the interior of the supporting block, and a plurality of slots are formed in the horizontal direction of the limiting rod.

[0012] By adopting the above technical solution, the slot on the limit rod makes it easy for the lever to penetrate and drive the limit rod to move in a limited directional manner, so as to drive the oil pressure plate to move downward in a limited manner to press the fat storage barrel and realize quantitative injection.

[0013] Preferably, a driving motor is fixedly installed on the left side of the front side of the base platform, and a transmission belt is connected and installed in the horizontal and vertical directions of the output end of the rear side of the driving motor. A rotating shaft is arranged on the right side inside the base platform, and a transmission belt is connected and installed on the left side and above the rotating shaft, and a cam is connected and installed at the top of the transmission belt in the vertical direction.

[0014] By adopting the above technical solution, when the drive motor is started, its output end drives the cam inside the drive column to rotate synchronously through the horizontal and vertical transmission belts, and the wrap angles between the transmission belts are staggered, thereby providing mechanical power for the left and right movement of the lever.

[0015] Preferably, a moving rod is connected and installed on the inner side of the cam, and the moving rod passes through the side of the driving column close to the oil pressure plate. A spring is installed on the side of the moving rod close to the oil pressure plate, and one end of the spring is connected to the inner side of the driving column, and the other end of the spring is connected to the outer side of the moving rod.

[0016] By adopting the above technical solution, when the cam rotates, it intermittently touches the moving rod, and the moving rod is pushed out to one side of the oil pressure plate through the compression of the spring, so as to drive the shifting rod to move back and forth left and right.

[0017] Preferably, a mounting plate is fixedly installed on the outer side of the moving rod, and a mounting box is fixedly installed on the bottom of the mounting plate. A shift rod is connected through the front side of the mounting box, and a torsion spring is connected and installed on the rear side of the shift rod.

[0018] With the above technical solution, when the moving rod moves back and forth, it drives the mounting plate and the mounting box to move back and forth simultaneously. Due to the action of the torsion spring, the lever is inclined, which facilitates the lever to limit the limit rod.

[0019] Preferably, the outer end of the lever passes through the slot, and the lever is slidably connected to the inclined block.

[0020] By adopting the above technical solution, when the lever moves back and forth left and right, the contact inclined block that penetrates into the slot hole rotates through the torsion spring support, and then the lever can drive the limit rod to move downward, and the limit controls the movement of the limit rod, thereby controlling the lifting and lowering movement of the oil pressure plate and injecting grease in a quantitative manner.

[0021] Compared with the prior art, the utility model has the following beneficial effects: the pneumatic quantitative grease injection pump with a limiting mechanism,

[0022] 1. A lever that can reciprocate left and right is provided, and a moving rod is connected and installed on the inner side of the cam, and the moving rod runs through the side of the driving column close to the oil pressure plate. A spring is installed on the side of the moving rod close to the oil pressure plate, and one end of the spring is connected to the inner side of the driving column, and the other end of the spring is connected to the outer side of the moving rod. When the cam rotates, it intermittently touches the moving rod, and the moving rod is pushed out to the side of the oil pressure plate through the compression of the spring, so as to drive the lever to reciprocate left and right;

[0023] 2. A limit rod is provided, a mounting plate is fixedly installed on the outer side of the moving rod, and a mounting box is fixedly installed on the bottom of the mounting plate, a lever is connected through the front side of the mounting box, and a torsion spring is connected and installed on the rear side of the lever. When the moving rod moves back and forth left and right, the mounting plate and the mounting box are driven to move back and forth left and right at the same time. Due to the action of the torsion spring, the lever is inclined, which is convenient for driving the lever to limit the limit rod. When the lever moves back and forth left and right, the contact inclined surface block that penetrates into the slot hole is rotated through the torsion spring support, and then the lever can drive the limit rod to move downward, and the limit controls the movement of the limit rod, thereby controlling the lifting and lowering movement of the oil pressure plate, and quantitatively injecting grease. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front main structure of the utility model;

[0025] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0026] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 4 This is a schematic diagram of the top view of the torsion spring structure of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the limit rod of the utility model;

[0029] Figure 6 This is a schematic diagram of the cam structure of the utility model.

[0030] In the figure: 1. base platform; 2. universal wheel; 3. driving column; 4. telescopic sleeve; 5. support block; 6. inclined block; 7. limit rod; 8. slot hole; 9. top frame; 10. control box; 11. pneumatic device; 12. feed pipe; 13. oil pressure plate; 14. air pipe; 15. driving motor; 16. transmission belt; 17. cam; 18. moving rod; 19. mounting plate; 20. spring; 21. mounting box; 22. lever; 23. torsion spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-6 , the utility model provides a technical solution:

[0033] A pneumatic quantitative grease injection pump with a limiting mechanism comprises a base platform 1, universal wheels 2 are installed on both left and right sides of the bottom of the base platform 1, and driving columns 3 are vertically installed on both left and right sides of the upper surface of the base platform 1, telescopic sleeves 4 are fixedly installed on both left and right sides of the upper surface of the base platform 1, and the telescopic sleeves 4 are located on the inner side of the driving column 3, and a limiting rod 7 is arranged on the upper part of the telescopic sleeve 4, and a top frame 9 is horizontally installed on the top of the limiting rod 7, a control box 10 is arranged on the right side of the top surface of the top frame 9, and a pneumatic device 11 is arranged in the middle of the top surface of the top frame 9, a feed pipe 12 is connected and installed in the middle of the bottom of the pneumatic device 11, and an oil pressure plate 13 is fixedly installed at the bottom end of the feed pipe 12, and air pipes 14 are arranged on both left and right sides of the upper surface of the oil pressure plate 13, and a shift rod 22 is arranged on the inner side of the left and right sides of the driving column 3, and the shift rod 22 is connected to the limiting rod 7 to form a limiting mechanism.

[0034] The upper surface of the telescopic sleeve 4 is fixedly installed with a support block 5 on the inner side, and the bottom of the support block 5 is fixedly installed with a slope block 6 near the oil pressure plate 13. The limit rod 7 runs through the inside of the support block 5, and the limit rod 7 is provided with a plurality of slots 8 in the horizontal direction. The support block 5 is convenient for guiding the up and down movement of the limit rod 7, and the slope block 6 at the bottom can provide guidance for the position movement of the lever 22 to drive the limit rod 7 to move. The slots 8 on the limit rod 7 are convenient for the lever 22 to penetrate and drive the limit rod 7 to move in a limited and directional manner, and to drive the oil pressure plate 13 to move downward in a limited manner to press the fat storage barrel, thereby realizing quantitative injection.

[0035] A driving motor 15 is fixedly installed on the left side of the front side of the base platform 1, and a transmission belt 16 is connected and installed in the horizontal and vertical directions of the output end of the rear side of the driving motor 15. A rotating shaft is arranged on the right side inside the base platform 1, and a transmission belt 16 is connected and installed on the left and top of the rotating shaft, and a cam 17 is connected and installed at the top of the transmission belt 16 in the vertical direction. A moving rod 18 is connected and installed on the inner side of the cam 17, and the moving rod 18 penetrates the side of the driving column 3 close to the oil pressure plate 13. A spring 20 is installed on the side of the moving rod 18 close to the oil pressure plate 13, and one end of the spring 20 is connected to the inner side of the driving column 3, and the other end of the spring 20 is connected to the outer side of the moving rod 18. When the driving motor 15 is started, its output end drives the cam 17 inside the driving column 3 to rotate synchronously through the action of the transmission belt 16 in the horizontal and vertical directions, and the wrap angles between the transmission belts 16 are staggered, thereby providing mechanical power for the left and right movement of the shifting rod 22. When the cam 17 rotates, it intermittently touches the moving rod 18, and the moving rod 18 is pushed out to the side of the oil pressure plate 13 through the compression of the spring 20, so as to drive the lever 22 to move back and forth left and right.

[0036] The outer side of the moving rod 18 is fixedly installed with a mounting plate 19, and the bottom of the mounting plate 19 is fixedly installed with a mounting box 21. The front side of the mounting box 21 is connected with a lever 22, and the rear side of the lever 22 is connected with a torsion spring 23. The outer end of the lever 22 penetrates the inside of the slot 8, and the lever 22 is slidably connected to the inclined block 6. When the moving rod 18 moves back and forth, it drives the mounting plate 19 and the mounting box 21 to move back and forth. Due to the action of the torsion spring 23, the lever 22 is inclined, which is convenient for driving the lever 22 to limit the limit rod 7. When the lever 22 moves back and forth, it penetrates the inside of the slot 8 and contacts the inclined block 6 to rotate with the support of the torsion spring 23, and then the lever 22 can drive the limit rod 7 to move downward, and the limit control of the movement of the limit rod 7 is controlled, thereby controlling the lifting and lowering movement of the oil pressure plate 13, and quantitatively injecting grease.

[0037] Working principle:

[0038] When the utility model is in use, the grease storage barrel is placed above the base platform 1. When the driving motor 15 is started, its output end drives the internal cam 17 of the driving column 3 to rotate synchronously through the action of the transmission belt 16 in the horizontal and vertical directions, and intermittently touches the moving rod 18, and the moving rod 18 is pushed out to the side of the oil pressure plate 13 through the compression of the spring 20. When the moving rod 18 moves back and forth left and right, it drives the mounting plate 19 and the mounting box 21 to move back and forth left and right at the same time. Due to the action of the torsion spring 23, the lever 22 is oblique, penetrates to the inside of the slot hole 8, and contacts the inclined surface block 6 and rotates through the support of the torsion spring 23, and then the lever 22 can drive the limit rod 7 to move downward, and the limit control controls the movement of the limit rod 7, thereby controlling the lifting and lowering movement of the oil pressure plate 13, and quantitatively injecting grease.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic quantitative grease injection pump with a limit mechanism, comprising a base (1), characterized in that: Universal wheels (2) are installed on both left and right sides of the bottom of the base platform (1), and driving columns (3) are vertically installed on both left and right sides of the upper surface of the base platform (1). Telescopic sleeves (4) are fixedly installed on both left and right sides of the upper surface of the base platform (1), and the telescopic sleeves (4) are located on the inner side of the driving columns (3). A limit rod (7) is arranged on the upper part of the telescopic sleeve (4), and a top frame (9) is horizontally installed on the top of the limit rod (7). The top right side of the top surface of the top frame (9) is provided with A control box (10) is provided, and a pneumatic device (11) is arranged in the middle of the top surface of the top frame (9), a material delivery pipe (12) is connected and installed in the middle of the bottom of the pneumatic device (11), and an oil pressure plate (13) is fixedly installed at the bottom end of the material delivery pipe (12), and air pipes (14) are arranged on the left and right sides of the upper surface of the oil pressure plate (13), and levers (22) are arranged on the inner sides of the left and right sides of the driving column (3), and the levers (22) are connected to the limiting rod (7) to form a limiting mechanism.

2. A pneumatic quantitative grease injection pump with a limiting mechanism according to claim 1, characterized in that: A support block (5) is fixedly installed on the inner side of the upper surface of the telescopic sleeve (4), and a slope block (6) is fixedly installed on the bottom of the support block (5) close to the oil pressure plate (13).

3. A pneumatic quantitative grease injection pump with a limiting mechanism according to claim 2, characterized in that: The limiting rod (7) passes through the interior of the supporting block (5), and a plurality of slots (8) are provided in the horizontal direction of the limiting rod (7).

4. The pneumatic quantitative grease injection pump with a limiting mechanism according to claim 1, characterized in that: A driving motor (15) is fixedly installed on the left side of the front side of the base platform (1), and a transmission belt (16) is connected and installed in the horizontal direction and the vertical direction of the output end of the rear side of the driving motor (15). A rotating shaft is arranged on the right side inside the base platform (1), and a transmission belt (16) is connected and installed on the left side and the top of the rotating shaft, and a cam (17) is connected and installed at the top of the transmission belt (16) in the vertical direction.

5. A pneumatic quantitative grease injection pump with a limiting mechanism according to claim 4, characterized in that: The cam (17) is connected to a moving rod (18) on the inner side, and the moving rod (18) passes through the side of the driving column (3) close to the oil pressure plate (13). A spring (20) is installed on the side of the moving rod (18) close to the oil pressure plate (13), and one end of the spring (20) is connected to the inner side of the driving column (3), and the other end of the spring (20) is connected to the outer side of the moving rod (18).

6. A pneumatic quantitative grease injection pump with a limiting mechanism according to claim 5, characterized in that: A mounting plate (19) is fixedly mounted on the outer side of the moving rod (18), and a mounting box (21) is fixedly mounted on the bottom of the mounting plate (19); a lever (22) is connected through the front side of the mounting box (21), and a torsion spring (23) is connected and mounted on the rear side of the lever (22).

7. A pneumatic quantitative grease injection pump with a limiting mechanism according to claim 6, characterized in that: The outer end of the shifting rod (22) passes through the inside of the slotted hole (8), and the shifting rod (22) is slidably connected to the inclined surface block (6).

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