Breaker hammer piston and machining apparatus therefor

Abstract

This utility model belongs to the field of hydraulic breaker technology, specifically relating to hydraulic breaker pistons and their processing equipment. It includes a hydraulic breaker piston with a positioning hole at one end. A third sliding groove is formed within the positioning hole, and a connecting plate is slidably disposed within the third sliding groove. A blind hole is provided on the end face of the connecting plate near the positioning hole. Two locking blocks are slidably connected to the connecting plate, symmetrical about the axis of the connecting plate. An inclined surface is provided on the end face of each locking block near the blind hole. This invention allows for polishing of pistons of different sizes and even pistons with stepped surfaces. The installation method is simple.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic breaker technology, and relates to hydraulic breaker pistons and their processing equipment. Background Technology

[0002] The piston of a hydraulic breaker is one of the core components of a hydraulic breaker. Its main function is to achieve reciprocating motion through the hydraulic system, thereby transmitting energy to complete the breaking operation. Currently, hydraulic breaker pistons are not easy to disassemble and assemble, and are relatively cumbersome to use.

[0003] To improve the piston's sealing performance, the piston of the hydraulic breaker usually needs to be smoothed, typically by polishing.

[0004] Chinese patent application number CN221248317U discloses a polishing device for a solenoid valve piston rod, including a polishing table. A power frame is fixedly connected to the upper surface of the polishing table by two mounting screws. A power unit is installed on the right side of the power frame, and a polishing wheel is fixedly connected to the output end of the power unit.

[0005] In the aforementioned prior art, when polishing pistons of different sizes, it is necessary to change polishing wheels of different sizes. Especially when polishing pistons with stepped surfaces, frequent changes are required, resulting in low polishing efficiency and high cost due to the need to prepare polishing wheels of different sizes.

[0006] To address the aforementioned problems, this utility model proposes a hydraulic breaker piston and its processing equipment. Utility Model Content

[0007] To address the problems existing in the background technology, this utility model proposes a hydraulic breaker piston and its processing equipment.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a hydraulic breaker piston, including a piston, one end of which is provided with a positioning hole, a third sliding groove is provided in the positioning hole, a connecting plate is slidably arranged in the third sliding groove, a blind hole is provided on the end face of the connecting plate near the positioning hole, two locking blocks are slidably connected to the connecting plate, the two locking blocks are symmetrical about the axis of the connecting plate, and an inclined surface is provided on the end face of the locking block near the blind hole.

[0009] Preferably, a first spring is fixedly installed on the connecting plate, one end of the first spring is fixedly installed on the connecting plate, and the other end of the first spring is fixedly installed on the bottom wall of the third slide groove.

[0010] Preferably, the connecting plate has two fourth sliding grooves that correspond one-to-one with the card blocks. The axis of the fourth sliding groove is arranged radially along the connecting plate. A second spring is fixedly installed on the card block. One end of the second spring is fixedly installed on the card block, and the other end of the second spring is fixedly installed on the fourth sliding groove. An electromagnet that cooperates with the card block is fixedly installed on the fourth sliding groove.

[0011] A processing device for hydraulic breaker pistons includes a processing table. A protective cover is fixedly installed near the center of the processing table. A polishing wheel with its axis horizontally arranged in the left-right direction is slidably installed inside the protective cover. The polishing wheel is connected to the protective cover via a first drive module, and the polishing wheel is rotatably connected to the first drive module. Two clamping cones are slidably installed on the processing table. The clamping cones are connected to the processing table via a second drive module, which drives the two clamping cones to move. The direction of movement of the clamping cones is parallel to the axis of the polishing wheel. A third drive module is installed between the clamping cones and the processing table, and the third drive module drives the clamping cones to rotate.

[0012] Preferably, the first driving module includes: sliders; each of the left and right side walls of the protective cover has a first sliding groove extending in the longitudinal direction; two sliders are provided and are respectively located in the two first sliding grooves; the sliders are slidably connected to the first sliding grooves.

[0013] A rotating shaft is mounted between two sliders and is rotatably connected to the sliders. The polishing wheel is fixedly mounted on the rotating shaft.

[0014] A first motor is mounted on one side of the protective cover. The end of the rotating shaft near the first motor passes through the slider and is fixedly connected to the output shaft of the first motor.

[0015] The first telescopic rod is fixedly installed in the first sliding groove, and the output rod of the first telescopic rod is fixedly connected to the slider. The movement direction of the output rod of the first telescopic rod is parallel to the length direction of the first sliding groove.

[0016] Preferably, the second drive module includes a second slide groove, which is formed on the processing table, and the length of the second slide groove is arranged along the left-right direction.

[0017] A lead screw, the axis of which is parallel to the length direction of the second slide groove, is rotatably mounted within the second slide groove.

[0018] The slide plate is connected to the lead screw by a thread, and the slide plate is slidably connected to the second slide groove. A first fixed shell and a second fixed shell are respectively fixedly installed at both ends of the slide plate along the length direction of the second slide groove, and the slide plate is respectively installed on the first fixed shell and the second fixed shell.

[0019] Preferably, a collection box is detachably installed at the lower end of the processing table, and a through groove is provided on the processing table to connect the collection box to the protective cover.

[0020] Preferably, the upper surface of the skateboard is a slope, and the height of the end of the skateboard closer to the collection box is lower than the height of the end of the skateboard farther from the collection box.

[0021] Preferably, the third drive module includes: a rotating column, the axis of which is horizontally arranged in the left-right direction; two rotating columns are configured, each rotatably mounted inside the first fixed shell and the second fixed shell respectively; and two clamping cones are respectively fixedly mounted on the two rotating columns.

[0022] The worm gear is fixedly connected to the rotating column.

[0023] A worm gear, wherein the worm axis is arranged vertically, the worm gear is rotatably mounted within the second fixed housing, and the worm gear meshes with the worm wheel.

[0024] The gear has a through hole extending downwards through the machining table, the worm gear is located within the through hole, and the gear is fixedly installed at the bottom end of the worm gear.

[0025] A rack is fixedly installed at the bottom end of the processing table, and the rack meshes with the gear.

[0026] Preferably, a second telescopic rod is rotatably mounted on the first fixed shell, the extension and retraction direction of the output rod of the second telescopic rod is along the left and right direction, and the output rod of the second telescopic rod is fixedly connected to the clamping cone installed in the first fixed shell.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] By changing the distance between the polishing wheel and the piston, pistons of different sizes can be polished, as well as pistons with uneven surfaces. By automatically rotating the piston during translation, a complete polishing of the piston's outer surface is achieved, saving costs. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 This is a right-side sectional view of the present invention;

[0031] Figure 3 This is a utility model Figure 2 A magnified view of a section at point A in the middle;

[0032] Figure 4 This is a schematic diagram of the piston structure of this utility model;

[0033] Figure 5 This is a partial sectional view of the piston of this utility model;

[0034] Figure 6 This is a utility model Figure 5 A magnified view of a section at point B in the middle.

[0035] In the diagram: 1. Processing table; 2. Protective cover; 3. First slide groove; 4. Collection box; 5. Slider; 6. First telescopic rod; 7. Rotating shaft; 8. First motor; 9. Polishing wheel; 10. Second slide groove; 11. Lead screw; 12. Second motor; 13. Slide plate; 14. First fixed shell; 15. Second fixed shell; 16. Clamping cone; 17. Second telescopic rod; 18. Worm gear; 19. Rotating column; 20. Worm; 21. Gear; 22. Through hole; 23. Rack; 24. Piston; 25. Positioning hole; 26. First spring; 27. Third slide groove; 28. Connecting plate; 29. ​​Second spring; 30. Electromagnet; 31. Locking block; 32. Fourth slide groove. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] like Figures 1-6 As shown, the technical solution adopted by this utility model is as follows: a hydraulic breaker piston and its processing equipment.

[0038] Example 1

[0039] A hydraulic breaker piston. It includes a piston 24. One end of the piston 24 has a positioning hole 25. A third sliding groove 27 is formed within the positioning hole 25. A connecting plate 28 is slidably disposed within the third sliding groove 27.

[0040] Specifically, a first spring 26 is fixedly installed on the connecting plate 28. One end of the first spring 26 is fixedly installed on the connecting plate 28, and the other end of the first spring 26 is fixedly installed on the bottom wall of the third slide groove 27.

[0041] A blind hole is provided on the end face of the connecting plate 28 near the positioning hole 25. Two locking blocks 31 are slidably connected to the connecting plate 28. The two locking blocks 31 are symmetrical about the axis of the connecting plate 28.

[0042] Specifically, the connecting plate 28 has two fourth sliding grooves 32 that correspond one-to-one with the locking blocks 31. The axis of the fourth sliding groove 32 is arranged radially along the connecting plate 28. A second spring 29 is fixedly installed on the locking block 31. One end of the second spring 29 is fixedly installed on the locking block 31, and the other end of the second spring 29 is fixedly installed on the fourth sliding groove 32.

[0043] Furthermore, an electromagnet 30 that cooperates with the locking block 31 is fixedly installed on the fourth sliding groove 32.

[0044] The end face of the card block 31 near the blind hole is provided with an inclined surface.

[0045] During piston 24 installation, it is positioned and installed via positioning hole 25. A matching component on the main unit passes through positioning hole 25, pushing connecting plate 28 inward along third slide groove 27. First spring 26 is compressed and deformed. During this process, the inclined surface on locking block 31 engages with a matching component on the main unit, causing locking block 31 to compress second spring 29 and extend into fourth slide groove 32. Then, under the action of second spring 29, locking block 31 automatically extends into a matching slot on the main unit, thus completing the initial installation of piston 24.

[0046] During disassembly, the electromagnet 30 is energized, which generates a repulsive force between the locking blocks 31, thereby causing the locking blocks 31 to compress the second spring 29, thus causing the locking blocks 31 to detach from the main unit. Afterwards, the connecting plate 28 will eject the piston 24 under its own elastic force, making disassembly and assembly relatively simple.

[0047] Example 2

[0048] This embodiment provides a processing device for the machining of the hydraulic breaker piston in Embodiment 1. Specifically, it is a machining device for the hydraulic breaker piston, including a machining table 1. A protective cover 2 is fixedly installed on the machining table 1 near its center.

[0049] The lower end of the processing table 1 is detachably equipped with a collection box 4. A through groove is provided on the processing table 1, which connects the collection box 4 to the protective cover 2.

[0050] A polishing wheel 9, with its axis horizontally aligned in the left-right direction, is slidably mounted inside the protective cover 2. The polishing wheel 9 is connected to the protective cover 2 via a first drive module. The polishing wheel 9 and the first drive module are rotatably connected.

[0051] The first drive module includes: slider 5, rotating shaft 7, first motor 8, and first telescopic rod 6.

[0052] The protective cover 2 has a first sliding groove 3 extending in the front-back direction along its length on both the left and right side walls. The slider 5 is configured as two and is located in the two first sliding grooves 3 respectively. The slider 5 is slidably connected to the first sliding groove 3.

[0053] The rotating shaft 7 is installed between the two sliders 5. The rotating shaft 7 is rotatably connected to the sliders 5. The polishing wheel 9 is fixedly installed on the rotating shaft 7.

[0054] The first motor 8 is mounted on one side of the protective cover 2. The end of the rotating shaft 7 near the first motor 8 passes through the slider 5 and is fixedly connected to the output shaft of the first motor 8.

[0055] The first telescopic rod 6 is fixedly installed within the first sliding groove 3. The output rod of the first telescopic rod 6 is fixedly connected to the slider 5. The direction of movement of the output rod of the first telescopic rod 6 is parallel to the length direction of the first sliding groove 3.

[0056] The first motor 8 is started, and its rotation drives the rotating shaft 7 and polishing wheel 9 to rotate together. The rotation of polishing wheel 9 polishes the piston. The first telescopic rod 6 extends or retracts, which, through the slider 5, causes the rotating shaft 7 and polishing wheel 9 to slide back and forth. This allows the position of polishing wheel 9 to be adjusted according to the size of the piston.

[0057] Two clamping cones 16 are slidably mounted on the processing table 1. The clamping cones 16 are connected to the processing table 1 via a second drive module. The second drive module drives the two clamping cones 16 to move. The direction of movement of the clamping cones 16 is parallel to the axial direction of the polishing wheel 9.

[0058] Specifically, the second drive module includes: a second slide 10, a lead screw 11, and a slide plate 13.

[0059] The second slide groove 10 is formed on the processing table 1. The length direction of the second slide groove 10 is set along the left-right direction.

[0060] The axis of the lead screw 11 is parallel to the length direction of the second slide groove 10. The lead screw 11 is rotatably mounted within the second slide groove 10. A second motor 12 is fixedly mounted on the processing table 1, and the shaft of the second motor 12 is fixedly connected to one end of the lead screw 11. When the second motor 12 is started, it drives the lead screw 11 to rotate.

[0061] The slide plate 13 is threadedly connected to the lead screw 11. The slide plate 13 is slidably connected to the second slide groove 10. A first fixing shell 14 and a second fixing shell 15 are fixedly installed at both ends of the slide plate 13 along the length direction of the second slide groove 10, and the slide plate 13 is respectively mounted on the first fixing shell 14 and the second fixing shell 15.

[0062] When the lead screw 11 rotates, it drives the slide plate 13 to move. When the slide plate 13 moves, it drives the first fixed shell 14 and the second fixed shell 15 to move together.

[0063] The upper surface of the slide plate 13 is inclined, and the height of the end of the slide plate 13 near the collection box 4 is lower than the height of the end of the slide plate 13 away from the collection box 4. Because the slide plate 13 is designed with an inclined structure, dust generated during the polishing process will fall along the inclined surface of the slide plate 13 into the collection box 4, thus achieving the collection of polishing dust.

[0064] A third drive module is installed between the clamping cone 16 and the processing table 1, and the third drive module drives the clamping cone 16 to rotate.

[0065] The third drive module includes: a rotating column 19, a worm gear 18, a worm 20, a gear 21, and a rack 23.

[0066] Wherein: the axis of the rotating column 19 is horizontally arranged in the left-right direction. There are two rotating columns 19. The two rotating columns 19 are respectively rotatably installed in the first fixed shell 14 and the second fixed shell 15. The two clamping cones 16 are respectively fixedly installed on the two rotating columns 19.

[0067] The worm gear 18 is fixedly connected to the rotating column 19.

[0068] The worm gear 20 has its axis arranged vertically. The worm gear 20 is rotatably mounted inside the second fixed housing 15, and the worm gear 20 meshes with the worm wheel 18.

[0069] The machining table 1 has a through hole 22 extending downward through the machining table 1, and the worm gear 20 is located inside the through hole 22. The gear 21 is fixedly installed at the bottom end of the worm gear 20.

[0070] The rack 23 is fixedly installed at the bottom end of the processing table 1. The rack 23 meshes with the gear 21.

[0071] Furthermore, a second telescopic rod 17 is rotatably mounted on the first fixed housing 14, and the extension direction of the output rod of the second telescopic rod 17 is along the left-right direction. The output rod of the second telescopic rod 17 is fixedly connected to the clamping cone 16 installed inside the first fixed housing 14.

[0072] The second motor 12 starts, which causes the lead screw 11 to rotate, thereby causing the slide plate 13, the first fixed shell 14, the second fixed shell 15, and the piston to move along the direction of the second slide groove 10. During this process, the gear 21 drives the worm 20 to rotate, and the worm 20 drives the worm wheel 18 to rotate. The two worm wheels 18 respectively drive the second telescopic rod 17 and the rotating column 19 to rotate, thereby causing the piston to rotate and thus completing the full polishing of the piston's outer surface.

[0073] The specific usage process of this application is as follows:

[0074] First, the piston is placed between the two clamping cones 16. Then, the second telescopic rod 17 is activated, causing the clamping cones 16 connected to it to move closer to the piston, thereby completing the clamping and positioning of the piston.

[0075] Then, the first telescopic rod 6 is activated, causing the slider 5 to move closer to the piston, which in turn causes the rotating shaft 7, polishing wheel 9, and first motor 8 to move closer to the piston as a whole. When the polishing wheel 9 reaches the appropriate position, that is, when the polishing wheel 9 contacts the piston, the first motor 8 is activated. The first motor 8 drives the rotating shaft 7 and polishing wheel 9 to rotate together, thereby starting the polishing work on the piston.

[0076] During the polishing process, since the top surface of the slide plate 13 is inclined, the dust generated during the polishing process will fall into the collection box 4 along the inclined surface of the slide plate 13, thereby collecting the polishing dust.

[0077] When polishing a piston, if the piston surface is not flat, such as being stepped, we can adjust the distance between the polishing wheel 9 and the piston in real time by controlling the extension or retraction of the output end of the first telescopic rod 6. This satisfies the polishing requirements of stepped pistons.

[0078] During the polishing process, the second motor 12 is activated. The second motor 12 drives the lead screw 11 to rotate. As the lead screw 11 rotates, it causes the slide plate 13, the first fixed shell 14, the second fixed shell 15, and the piston as a whole to move along the direction of the second slide groove 10. During the above movement, the gear 21 meshes with the rack 23, and the rack 23 drives the gear 21 to rotate. The rotation of the gear 21 drives the worm gear 20 to rotate, and the worm gear 20 drives the worm wheel 18 to rotate. The two worm wheel processing tables 1 and the first motor 8 respectively drive the second telescopic rod 17 and the rotating column 19 to rotate, thereby causing the piston to rotate along its own axis, thus completing the full polishing of the piston's outer surface.

[0079] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic breaker piston, comprising a piston (24), characterized in that, The piston (24) has a positioning hole (25) at one end, and a third sliding groove (27) is provided in the positioning hole (25). A connecting plate (28) is slidably arranged in the third sliding groove (27). A blind hole is provided on the end face of the connecting plate (28) near the positioning hole (25). Two locking blocks (31) are slidably connected on the connecting plate (28). The two locking blocks (31) are symmetrical about the axis of the connecting plate (28). An inclined surface is provided on the end face of the locking block (31) near the blind hole.

2. The hydraulic breaker piston according to claim 1, characterized in that, A first spring (26) is fixedly installed on the connecting plate (28). One end of the first spring (26) is fixedly installed on the connecting plate (28), and the other end of the first spring (26) is fixedly installed on the bottom wall of the third slide groove (27).

3. The breaker piston according to claim 1, characterized in that, The connecting plate (28) has two fourth slide grooves (32) that correspond one-to-one with the locking block (31). The axis of the fourth slide groove (32) is arranged radially along the connecting plate (28). A second spring (29) is fixedly installed on the locking block (31). One end of the second spring (29) is fixedly installed on the locking block (31), and the other end of the second spring (29) is fixedly installed on the fourth slide groove (32). An electromagnet (30) that cooperates with the locking block (31) is fixedly installed on the fourth slide groove (32).

4. A processing device for a hydraulic breaker piston, comprising a hydraulic breaker piston as described in any one of claims 1-3, characterized in that, The system includes a processing table (1), a protective cover (2) fixedly installed near the center of the processing table (1), a polishing wheel (9) with its axis horizontally arranged in the left-right direction slidably installed inside the protective cover (2), the polishing wheel (9) and the protective cover (2) are connected by a first drive module, the polishing wheel (9) and the first drive module are rotatably connected, two clamping cones (16) are slidably installed on the processing table (1), the clamping cones (16) and the processing table (1) are connected by a second drive module, the second drive module drives the two clamping cones (16) to move, the direction of movement of the clamping cones (16) is parallel to the axis of the polishing wheel (9), a third drive module is installed between the clamping cones (16) and the processing table (1), the third drive module drives the clamping cones (16) to rotate.

5. The processing equipment for the hydraulic breaker piston according to claim 4, characterized in that, The first driving module includes a slider (5). A first sliding groove (3) extending in the longitudinal direction along the front-back direction is provided on both the left and right side walls of the protective cover (2). Two sliders (5) are provided, each located within one of the two first sliding grooves (3). The sliders (5) are slidably connected to the first sliding grooves (3). A rotating shaft (7) is installed between two sliders (5), and the rotating shaft (7) is rotatably connected to the sliders (5). The polishing wheel (9) is fixedly installed on the rotating shaft (7). The first motor (8) is mounted on one side of the protective cover (2). The end of the rotating shaft (7) near the first motor (8) passes through the slider (5) and is fixedly connected to the output shaft of the first motor (8). The first telescopic rod (6) is fixedly installed in the first slide groove (3). The output rod of the first telescopic rod (6) is fixedly connected to the slider (5). The movement direction of the output rod of the first telescopic rod (6) is parallel to the length direction of the first slide groove (3).

6. The processing equipment for the hydraulic breaker piston according to claim 4, characterized in that, The second drive module includes a second slide groove (10), which is formed on the processing table (1). The length of the second slide groove (10) is arranged along the left-right direction. A lead screw (11) has its axis parallel to the length direction of the second slide groove (10), and the lead screw (11) is rotatably mounted in the second slide groove (10). The slide plate (13) is connected to the lead screw (11) by a thread, and the slide plate (13) is slidably connected to the second slide groove (10). A first fixed shell (14) and a second fixed shell (15) are fixedly installed at both ends of the slide plate (13) along the length direction of the second slide groove (10). The slide plate (13) is installed on the first fixed shell (14) and the second fixed shell (15) respectively.

7. The processing equipment for the hydraulic breaker piston according to claim 6, characterized in that, The processing table (1) is detachably equipped with a collection box (4) at its lower end. A through groove is provided on the processing table (1), which connects the collection box (4) to the protective cover (2).

8. The processing equipment for the hydraulic breaker piston according to claim 7, characterized in that, The upper surface of the skateboard (13) is a slope, and the height of the end of the skateboard (13) near the collection box (4) is lower than the height of the end of the skateboard (13) away from the collection box (4).

9. The processing equipment for the piston of the hydraulic breaker according to claim 6, characterized in that, The third drive module includes: a rotating column (19), the axis of which is horizontally arranged in the left-right direction; two rotating columns (19) are provided, and the two rotating columns (19) are respectively rotatably installed in the first fixed shell (14) and the second fixed shell (15); and two clamping cones (16) are respectively fixedly installed on the two rotating columns (19). The worm gear (18) is fixedly connected to the rotating column (19). A worm (20) is provided, with its axis arranged vertically. The worm (20) is rotatably mounted inside the second fixed housing (15). The worm (20) meshes with the worm wheel (18). The gear (21) has a through hole (22) extending downward through the machining table (1), the worm (20) is located inside the through hole (22), and the gear (21) is fixedly installed at the bottom end of the worm (20). A rack (23) is fixedly installed at the bottom end of the processing table (1), and the rack (23) meshes with the gear (21).

10. The processing equipment for the piston of the hydraulic breaker according to claim 6, characterized in that, A second telescopic rod (17) is rotatably mounted on the first fixed shell (14). The extension and retraction direction of the output rod of the second telescopic rod (17) is along the left and right direction. The output rod of the second telescopic rod (17) is fixedly connected to the clamping cone (16) installed in the first fixed shell (14).

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