A main oil return pump of a grinding machine

Abstract

The utility model belongs to the technical field of grinder main oil return pump, especially a grinder main oil return pump convenient to maintain, including main oil return pump body and fixed connection on the base of grinder, the bottom fixed connection of main oil return pump body has the fixed base, the fixed base detachably fixed connection in the top of base, the top fixed communication of main oil return pump body has the square tube. The utility model discloses reasonable in structure design, through up and down connection sealing mechanism, the convenient efficiency of the connection between the inlet and outlet of grinder main oil return pump and the oil return conveying pipe is good, guarantee the sealing of connection simultaneously, avoid the situation of liquid leakage, and then can take down grinder main oil return pump from the oil return conveying pipe between, so that the overhaul maintenance work of grinder main oil return pump is carried out, and is provided with detachable filter mechanism, need not the whole grinder main oil return pump to carry out dismounting, only need to take down the filter box from the square tube and carry out cleaning replacement, improve the convenience of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine main return oil pump technology, and in particular to a grinding machine main return oil pump that is easy to maintain. Background Technology

[0002] In the operation of a grinding machine, the main return oil pump plays a crucial role, responsible for transporting the return oil generated during grinding back to the oil tank, maintaining the stable operation of the entire hydraulic system. However, traditional grinding machine main return oil pumps present several inconveniences in maintenance. For example, the disassembly and assembly of the filter device of the main return oil pump are difficult, and the connection between the inlet / outlet end of the main return oil pump and the return oil delivery pipe is cumbersome. When the main return oil pump is damaged, disassembly and maintenance are inconvenient. These problems not only increase maintenance costs and time but may also affect the normal operating efficiency and service life of the grinding machine. Therefore, developing a grinding machine main return oil pump that is easy to maintain is of significant practical importance. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned shortcomings by providing a grinding machine main return oil pump that is easy to maintain.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A maintenance-friendly main oil return pump for a grinding machine includes a main oil return pump body and a base fixedly connected to the grinding machine. A fixed seat is fixedly connected to the bottom of the main oil return pump body, and the fixed seat is detachably fixedly connected to the top of the base. A square tube is fixedly connected to the top of the main oil return pump body, and a detachable filter mechanism is provided on the square tube. An oil inlet is fixedly connected to the top of the square tube, and an upper pipe is detachably fixedly connected to the top of the oil inlet. An upper connecting sealing mechanism is provided between the oil inlet and the upper pipe. An oil outlet is fixedly connected to one side of the main oil return pump body, and a lower pipe is detachably fixedly connected to one end of the oil outlet. A lower connecting sealing mechanism is provided between the lower pipe and the oil outlet.

[0006] In a preferred embodiment of this utility model, both the lower connecting sealing mechanism and the upper connecting sealing mechanism include a first connecting ring and a second connecting ring. The two first connecting rings are respectively fixedly sleeved on the outer sides of the oil outlet and the oil inlet, and the two second connecting rings are respectively fixedly sleeved on the outer sides of the upper pipe and the lower pipe. A trapezoidal ring is fixedly sleeved on the outer side of the first connecting ring. Four rectangular openings are provided on one side of the second connecting ring. A groove is provided on the inner wall of one side of the rectangular opening. A spring is fixedly connected to the inner wall of the groove. A slider is fixedly connected to the outer end of the first spring. A connecting plate is fixedly connected to one side of the slider. A locking block is fixedly connected to one side of the connecting plate. The locking block is movably locked onto one side of the trapezoidal ring.

[0007] In a preferred embodiment of this invention, four extrusion plates are fixedly connected to one side of the second connecting ring, and a rubber head is fixedly connected to one end of each extrusion plate. An annular groove is formed on the inner wall of the first connecting ring, and an airbag is fixedly connected to the inner wall of the annular groove. A sealing ring is fixedly connected to the inner side of the airbag, and the rubber head is movably abutted against inside the airbag.

[0008] As a preferred embodiment of this utility model, four magnets are fixedly connected to one side of the trapezoidal ring, and magnets are fixedly connected to one side of the card block, with magnets attracting each other.

[0009] As a preferred embodiment of this utility model, all four sliders are slidably fitted into the corresponding rectangular openings and grooves.

[0010] As a preferred embodiment of this utility model, the detachable filter mechanism includes a mounting block and a mounting port on one side of the square tube. A filter box is fixedly connected to one side of the mounting block. A circular groove is formed on the top of the mounting block. Limiting grooves are formed on the inner walls of both sides of the circular groove. Arc-shaped slots are formed on the bottom inner walls of the two limiting grooves. A horizontal plate is fixedly connected to one side of the square tube. A second spring is fixedly connected to the top of the horizontal plate. A limiting plate is fixedly connected to the top of the second spring. A rotating rod is rotatably connected to the bottom of the limiting plate. One end of the rotating rod passes through the horizontal plate and is movably inserted into the circular groove. Arc-shaped blocks are fixedly connected to the front and rear sides of the rotating rod. The two arc-shaped blocks are movably engaged in the corresponding arc-shaped slots.

[0011] In a preferred embodiment of this invention, a handwheel is fixedly connected to the top of the rotating rod, a sealing sleeve is fixedly fitted inside the mounting opening, and the mounting block is movably fitted inside the sealing sleeve.

[0012] As a preferred embodiment of this utility model, a shock-absorbing pad is movably abutting between the fixing seat and the base, and four screws are threadedly connected to the top of the fixing seat, and the fixing seat is fixedly connected to the top of the base by the four screws.

[0013] In this utility model, a maintenance-friendly main return oil pump for a grinding machine allows hydraulic system oil to enter the inlet and square tube chamber from the upper pipe. Impurities in the oil are filtered and collected in the filter box, while the oil flows back into the return tank from the outlet and lower pipe, thus maintaining the stable operation of the entire hydraulic system. When cleaning the filter box is required, the handwheel is used to rotate the rotating rod and two arc-shaped blocks, aligning the two arc-shaped blocks with the limiting groove. At this point, under the elastic force of spring two, the rotating rod and arc-shaped blocks automatically move upward and disengage from the limiting groove, thus preventing the filter from being cleaned. After the mounting block is fixed in place, the filter box can be pulled out for cleaning. Once cleaned, insert the mounting block and filter box into the square tube, press down on the limiting plate, and insert the rotating rod and the arc-shaped block into the round groove and the limiting groove respectively, and finally into the arc-shaped slot. Rotate the rotating rod and the arc-shaped block by handwheel, so that the arc-shaped block rotates to the front and rear sides, thereby making the arc-shaped block and the limiting groove form a misaligned engagement. Release the limiting plate, and under the elastic force of the compressed spring, the arc-shaped block can firmly abut against the top inner wall of the arc-shaped slot, thus stably fixing the mounting block.

[0014] In this utility model, a maintenance-friendly main return oil pump for a grinding machine allows for easy removal of the lower or upper tube. When the lower or upper tube needs to be disassembled, the connecting plate and locking block are pulled upwards, preventing the locking block from contacting the outer side of the trapezoidal ring and thus eliminating the need to fix the connecting ring. At this point, the lower or upper tube can be removed, the screws loosened, and the main return oil pump body disassembled for maintenance. During installation, the lower and upper tubes are fixed with screws, and then pressed towards the side closest to the main return oil pump body. This causes the locking block to move outwards under the pressure of the trapezoidal ring and pull... When the first connecting ring and the second connecting ring abut against each other, the locking block is not compressed. Under the elastic force of the first spring, the locking block is locked onto one side of the trapezoidal ring and fixed by the attraction of the first and second magnets, which improves the stability of the installation. When the second connecting ring moves to the left, it will drive the compression plate and the rubber head to move to the left to compress the airbag, causing the airbag to expand. Under expansion, the sealing ring can be squeezed inward, so that the sealing ring is firmly abutted against the connection of the two pipes, resulting in a better sealing effect and preventing leakage.

[0015] This utility model has a reasonable structural design. Through the upper and lower connecting sealing mechanism, it facilitates the convenient and efficient connection between the main return oil pump of the grinding machine and the inlet / outlet end and the return oil delivery pipe, while ensuring the sealing of the connection to prevent leakage. It also allows the main return oil pump of the grinding machine to be disassembled from the return oil delivery pipe for inspection and maintenance. In addition, it is equipped with a detachable filter mechanism, eliminating the need to disassemble the main return oil pump of the grinding machine as a whole. Only the filter box needs to be removed from the square tube for cleaning and replacement, which improves the convenience of maintenance. Attached Figure Description

[0016] Figure 1This utility model provides a structural schematic diagram of a grinding machine main return oil pump that is easy to maintain.

[0017] Figure 2 This is a cross-sectional view of the lower connecting sealing mechanism of the main return oil pump of a grinding machine, which is easy to maintain, according to the present invention.

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0019] Figure 4 This is a cross-sectional view of a square tube for a grinding machine main return oil pump that is easy to maintain, as proposed in this utility model.

[0020] Figure 5 for Figure 4 A structural diagram of section B;

[0021] Figure 6 This is an exploded view of the rotating rod, arc-shaped block, and mounting block of the main return oil pump of a grinding machine, which is easy to maintain, according to the present invention.

[0022] In the diagram: 1. Base; 2. Shock-absorbing pad; 3. Fixing seat; 4. Main return oil pump body; 5. Screw; 6. Oil outlet; 7. Lower pipe; 8. Lower connecting sealing mechanism; 9. Removable filter mechanism; 10. Upper connecting sealing mechanism; 11. Oil inlet; 12. Upper pipe; 13. Square pipe; 801. Connecting ring two; 802. Groove; 803. Spring one; 804. Rectangular opening; 805. Slider; 806. Connecting plate; 807. Magnet one; 808. Locking block; 809. Magnet 2; 810, Trapezoidal Ring; 811, Annular Groove; 812, Airbag; 813, Sealing Ring; 814, Extrusion Plate; 815, Rubber Head; 816, Connecting Ring 1; 901, Filter Box; 902, Mounting Port; 903, Sealing Sleeve; 904, Mounting Block; 905, Rotating Rod; 906, Arc Block; 907, Arc-shaped Slot; 908, Limiting Groove; 909, Horizontal Plate; 910, Spring 2; 911, Circular Groove; 912, Limiting Disc; 913, Handwheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-6A maintenance-friendly main return oil pump for a grinding machine includes a main return oil pump body 4 and a base 1 fixedly connected to the grinding machine. A fixed seat 3 is fixedly connected to the bottom of the main return oil pump body 4. The fixed seat 3 is detachably fixedly connected to the top of the base 1. A square tube 13 is fixedly connected to the top of the main return oil pump body 4. A detachable filter mechanism 9 is provided on the square tube 13. An oil inlet 11 is fixedly connected to the top of the square tube 13. An upper tube 12 is detachably fixedly connected to the top of the oil inlet 11. An upper connecting sealing mechanism 10 is provided between the oil inlet 11 and the upper tube 12. An oil outlet 6 is fixedly connected to one side of the main return oil pump body 4. A lower tube 7 is detachably fixedly connected to one end of the oil outlet 6. A lower connecting sealing mechanism 8 is provided between the lower tube 7 and the oil outlet 6.

[0025] In a preferred embodiment of this utility model, both the lower connecting sealing mechanism 8 and the upper connecting sealing mechanism 10 include a first connecting ring 816 and a second connecting ring 801. The two first connecting rings 816 are respectively fixedly sleeved on the outside of the oil outlet 6 and the oil inlet 11. The two second connecting rings 801 are respectively fixedly sleeved on the outside of the upper pipe 12 and the lower pipe 7. A trapezoidal ring 810 is fixedly sleeved on the outside of the first connecting ring 816. Four rectangular openings 804 are formed on one side of the second connecting ring 801. A groove 802 is formed on the inner wall of one side of each rectangular opening 804. A spring 803 is fixedly connected to the inner wall of the groove 802. A slider 805 is fixedly connected to the outer end of the spring 803. A connecting plate 8 is fixedly connected to one side of the slider 805. 06. A locking block 808 is fixedly connected to one side of the connecting plate 806. The locking block 808 is movably locked onto one side of the trapezoidal ring 810. Four extrusion plates 814 are fixedly connected to one side of the connecting ring 801. A rubber head 815 is fixedly connected to one end of the extrusion plate 814. An annular groove 811 is opened on the inner wall of the connecting ring 816. An airbag 812 is fixedly connected to the inner wall of the annular groove 811. A sealing ring 813 is fixedly connected to the inner side of the airbag 812. The rubber head 815 is movably abutted against the airbag 812. Four magnets 807 are fixedly connected to one side of the trapezoidal ring 810. A magnet 809 is fixedly connected to one side of the locking block 808. Magnets 807 and magnet 809 attract each other.

[0026] Using the above method: When it is necessary to disassemble the lower pipe 7 or the upper pipe 12, pull the connecting plate 806 and the locking block 808 upwards so that the locking block 808 does not abut against the outside of the trapezoidal ring 810, and thus the connecting ring 801 is not fixed. At this time, the lower pipe 7 or the upper pipe 12 can be disassembled. Then loosen the screw 5, and the main return oil pump body 4 can be disassembled for maintenance. During installation, the lower pipe 7 and the upper pipe 12 are installed and fixed by the screw 5. Then, the lower pipe 7 and the upper pipe 12 are squeezed towards the side close to the main return oil pump body 4. At this time, the locking block 808 is squeezed outwards by the trapezoidal ring 810 and stretches the spring 803. When the connecting ring 801... When 16 abuts against the connecting ring 801, the locking block 808 is not under pressure. Under the elastic force of the spring 803, the locking block 808 is locked onto one side of the trapezoidal ring 810 and fixed by the attraction of the magnet 807 and the magnet 809, improving the stability of the installation. When the connecting ring 801 moves to the left, it will drive the compression plate 814 and the rubber head 815 to move to the left to compress the airbag 812, causing the airbag 812 to expand. Under expansion, the sealing ring 813 can be squeezed inward, so that the sealing ring 813 is firmly abutted against the connection of the two pipes, resulting in a better sealing effect and preventing leakage.

[0027] Furthermore, all four sliders 805 are slidably fitted into the corresponding rectangular openings 804 and grooves 802, which facilitates the guidance of the sliders 805 and makes their movement more stable and smooth.

[0028] Furthermore, refer to Figures 4-6 The detachable filter mechanism 9 includes a mounting block 904 and a mounting port 902 opened on one side of the square tube 13. A filter box 901 is fixedly connected to one side of the mounting block 904. A circular groove 911 is opened on the top of the mounting block 904. Limiting grooves 908 are opened on the inner walls of both sides of the circular groove 911. Arc-shaped slots 907 are opened on the bottom inner walls of the two limiting grooves 908. A horizontal plate 909 is fixedly connected to one side of the square tube 13. A second spring 910 is fixedly connected to the top of the horizontal plate 909. A limiting plate 912 is fixedly connected to the top of the second spring 910. A rotating rod 905 is rotatably connected to the bottom of the limiting plate 912. One end of the rotating rod 905 passes through the horizontal plate 909 and is movably inserted into the circular groove 911. Arc-shaped blocks 906 are fixedly connected to the front and rear sides of the rotating rod 905. The two arc-shaped blocks 906 are movably engaged in the corresponding arc-shaped slots 907.

[0029] Using the above method: When cleaning the filter box 901 is required, the handwheel 913 is used to rotate the rotating rod 905 and the two arc-shaped blocks 906, causing the two arc-shaped blocks 906 to rotate until they are aligned with the limiting groove 908. At this time, under the elastic force of the second spring 910, the rotating rod 905 and the arc-shaped blocks 906 automatically move upward and disengage from the limiting groove 908, thus not limiting and fixing the mounting block 904. At this time, the filter box 901 can be pulled out for cleaning. After cleaning, the mounting block 904 and the filter box 901 are inserted into the square tube 13, and the limiting position is pressed down. The handwheel 912 is used to insert the rotating rod 905 and the arc-shaped block 906 into the circular groove 911 and the limiting groove 908 respectively, and finally into the arc-shaped slot 907. By rotating the rotating rod 905 and the arc-shaped block 906 through the handwheel 913, the arc-shaped block 906 is rotated to the front and rear sides, so that the arc-shaped block 906 and the limiting groove 908 form a misaligned engagement. When the limiting disc 912 is released, under the elastic force of the compressed spring 910, the arc-shaped block 906 can be firmly abutted against the top inner wall of the arc-shaped slot 907, thereby stably fixing the mounting block 904.

[0030] Furthermore, a handwheel 913 is fixedly connected to the top of the rotating rod 905, a sealing sleeve 903 is fixedly sleeved inside the mounting port 902, and the mounting block 904 is movably sleeved inside the sealing sleeve 903, which facilitates rotation to the rotating rod 905 and improves the sealing performance of the mounting block 904.

[0031] Furthermore, a shock-absorbing pad 2 is movably abutted between the fixed seat 3 and the base 1. Four screws 5 are threadedly connected to the top of the fixed seat 3. The fixed seat 3 is fixedly connected to the top of the base 1 by the four screws 5. The shock-absorbing pad 2 can reduce the vibration of the main return oil pump body 4 and improve the stability during operation. The screws 5 facilitate the disassembly and assembly of the main return oil pump body 4.

[0032] In this invention, the shock-absorbing pad 2 dampens the main return oil pump body 4 during use, improving its stability during operation. The lower connecting sealing mechanism 8 connects the lower pipe 7 to the oil outlet 6, and the upper connecting sealing mechanism 10 connects the upper pipe 12 to the oil inlet 11. When hydraulic oil enters the oil inlet 11 and the inner chamber of the square pipe 13 from the upper pipe 12, impurities in the oil are filtered and collected in the filter box 901. The oil then flows back into the return oil tank from the oil outlet 6 and the lower pipe 7, thus maintaining the stable operation of the entire hydraulic system. When the filter box 901 needs cleaning, the handwheel 913 rotates the lever 905 and the two arc-shaped blocks 906, causing the two arc-shaped blocks 906 to align with the limit groove 908. At this time, under the elastic force of the spring 910, the lever 905 and the arc-shaped blocks... 906 automatically moves upward and disengages from the limiting groove 908, thus no longer limiting or fixing the mounting block 904. At this point, the filter box 901 can be pulled out for cleaning. After cleaning, the mounting block 904 and the filter box 901 are inserted into the square tube 13. The limiting plate 912 is pressed down, causing the rotating rod 905 and the arc-shaped block 906 to be inserted into the circular groove 911 and the limiting groove 908 respectively, and finally into the arc-shaped slot 907. By rotating the rotating rod 905 and the arc-shaped block 906 through the handwheel 913, the arc-shaped block 906 is rotated to the front and rear sides, thereby causing the arc-shaped block 906 and the limiting groove 908 to form a misaligned engagement. The limiting plate 912 is released. At this time, under the elastic force of the compressed spring 910, the arc-shaped block 906 can firmly abut against the top inner wall of the arc-shaped slot 907, thus stably fixing the mounting block 904.

Claims

1. A maintenance-friendly main return oil pump for a grinding machine, characterized in that, The system includes a main return oil pump body (4) and a base (1) fixedly connected to a grinding machine. A fixed seat (3) is fixedly connected to the bottom of the main return oil pump body (4). The fixed seat (3) is detachably fixedly connected to the top of the base (1). A square tube (13) is fixedly connected to the top of the main return oil pump body (4). A detachable filter mechanism (9) is provided on the square tube (13). An oil inlet (11) is fixedly connected to the top of the square tube (13). An upper tube (12) is detachably fixedly connected to the top of the oil inlet (11). An upper connecting sealing mechanism (10) is provided between the oil inlet (11) and the upper tube (12). An oil outlet (6) is fixedly connected to one side of the main return oil pump body (4). A lower tube (7) is detachably fixedly connected to one end of the oil outlet (6). A lower connecting sealing mechanism (8) is provided between the lower tube (7) and the oil outlet (6).

2. The easy-to-maintain main return oil pump for a grinding machine according to claim 1, characterized in that, Both the lower connecting sealing mechanism (8) and the upper connecting sealing mechanism (10) include a first connecting ring (816) and a second connecting ring (801). The two first connecting rings (816) are respectively fixedly sleeved on the outside of the oil outlet (6) and the oil inlet (11), and the two second connecting rings (801) are respectively fixedly sleeved on the outside of the upper pipe (12) and the lower pipe (7). A trapezoidal ring (810) is fixedly sleeved on the outside of the first connecting ring (816), and four rectangular rings are opened on one side of the second connecting ring (801). The rectangular opening (804) has a groove (802) on one inner wall. A spring (803) is fixedly connected to the inner wall of the groove (802). A slider (805) is fixedly connected to the outer end of the spring (803). A connecting plate (806) is fixedly connected to one side of the slider (805). A locking block (808) is fixedly connected to one side of the connecting plate (806). The locking block (808) is movably locked onto one side of the trapezoidal ring (810).

3. The easy-to-maintain main return oil pump for a grinding machine according to claim 2, characterized in that, Four extrusion plates (814) are fixedly connected to one side of the second connecting ring (801). A rubber head (815) is fixedly connected to one end of the extrusion plate (814). An annular groove (811) is provided on the inner wall of the first connecting ring (816). An airbag (812) is fixedly connected to the inner wall of the annular groove (811). A sealing ring (813) is fixedly connected to the inner side of the airbag (812). The rubber head (815) moves and abuts against the airbag (812).

4. The easy-to-maintain main return oil pump for a grinding machine according to claim 2, characterized in that, Four magnets (807) are fixedly connected to one side of the trapezoidal ring (810), and magnets (809) are fixedly connected to one side of the card block (808). The magnets (807) and magnets (809) attract each other.

5. A maintenance-friendly main return oil pump for a grinding machine according to claim 2, characterized in that, All four sliders (805) are slidably fitted into the corresponding rectangular openings (804) and grooves (802).

6. The easy-to-maintain main return oil pump for a grinding machine according to claim 1, characterized in that, The detachable filter mechanism (9) includes a mounting block (904) and a mounting port (902) on one side of the square tube (13). A filter box (901) is fixedly connected to one side of the mounting block (904). A circular groove (911) is provided on the top of the mounting block (904). Limiting grooves (908) are provided on the inner walls of both sides of the circular groove (911). Arc-shaped slots (907) are provided on the inner walls of the bottom of the two limiting grooves (908). A horizontal plate (909) is fixedly connected to one side of the square tube (13). A spring 2 (910) is fixedly connected to the top of the horizontal plate (909). A limiting plate (912) is fixedly connected to the top of the spring 2 (910). A rotating rod (905) is rotatably connected to the bottom of the limiting plate (912). One end of the rotating rod (905) passes through the horizontal plate (909) and is movably inserted into the circular groove (911). Arc blocks (906) are fixedly connected to the front and rear sides of the rotating rod (905). The two arc blocks (906) are respectively movably engaged in the corresponding arc slots (907).

7. A maintenance-friendly main return oil pump for a grinding machine according to claim 6, characterized in that, A handwheel (913) is fixedly connected to the top of the rotating rod (905), a sealing sleeve (903) is fixedly fitted inside the mounting port (902), and the mounting block (904) is movably fitted inside the sealing sleeve (903).

8. A maintenance-friendly main return oil pump for a grinding machine according to claim 1, characterized in that, A shock-absorbing pad (2) is movably abutting between the fixed seat (3) and the base (1). Four screws (5) are threadedly connected to the top of the fixed seat (3). The fixed seat (3) is fixedly connected to the top of the base (1) by the four screws (5).

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