A high-life bearing sealing structure for hydraulic breaker
By designing a high-life bearing seal structure in the bearing of the hydraulic breaker, using sealing rings and structural stability measures, the problem of limited service life of the bearing is solved and the long service life of the bearing is achieved.
Patent Information
- Application Number
- CN202421548296.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The bearings in existing hydraulic breakers are likely to affect their service life due to wear of the sealing ring and wear of the bearing inner wall during use.
A hydraulic breaker high-life bearing sealing structure is designed. By setting a sealing ring on the movable shaft collar of the bearing, and using structures such as limiting plates, connecting plates and traction blocks, the stability between the pin shaft and the bearing is increased, and damage caused by movement of the pin shaft on the movable shaft is avoided.
It effectively improves the service life of the bearing, reduces wear on the seal ring and bearing inner wall, and extends the service life of the equipment.
Smart Images
Figure CN222746470U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hydraulic breaker hammers, in particular to a hydraulic breaker hammer high-life bearing sealing structure. Background Art
[0002] The power source of the hydraulic breaker is the pressure oil provided by the pump station of the excavator or loader. It can more effectively clean the floating stones and the soil in the rock gaps when digging the foundation of the building. The principle of selecting a hydraulic breaker is to choose the most suitable hydraulic breaker according to the excavator model and the working environment.
[0003] When the existing hydraulic breaker is installed with an excavator or loader, the pin needs to be installed on the bearing. However, the bearings used in the existing hydraulic breaker still have the following problems during use:
[0004] In the existing assembly of the pin shaft and the bearing, there is a gap between the pin shaft and the bearing, which is filled by a sealing ring. When the oil cylinder drives the pin shaft to move, the sealing ring on the inner wall of the pin shaft and the bearing is easily subjected to force, causing the sealing ring to deform and wear, and even causing wear on the inner wall of the bearing, thus affecting the service life of the bearing. Therefore, it is very necessary to involve a hydraulic breaker with a high-life bearing sealing structure for use in the existing hydraulic breaker field. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art, in the existing assembly of the pin shaft and the bearing, there is a gap between the pin shaft and the bearing, which is filled with a sealing ring. When the oil cylinder drives the pin shaft to move, the sealing ring on the inner wall of the bearing is easily subjected to force, causing the sealing ring to deform and wear, and even causing wear on the inner wall of the bearing, thereby affecting the service life of the bearing. The utility model proposes a long-life bearing sealing structure for a hydraulic breaker.
[0006] The technical solution adopted by the utility model to solve its technical problems is: a high-life bearing sealing structure of a hydraulic breaker, comprising a bracket body, a bearing fixedly assembled on the bracket body, the bearing further comprising a fixed shaft ring and a movable shaft ring, the movable shaft ring rotates on the inner side of the fixed shaft ring, a plurality of threaded holes are arranged on the movable shaft ring, a pin is assembled on the inner side of the movable shaft ring on the bearing, slots are arranged at both ends of the pin, limiting plates are assembled at both ends of the pin, connecting plates are fixedly assembled on the sides of the limiting plates, one end of the connecting plates is fixedly assembled with a mounting support plate, the mounting support plate and the threaded holes are threadedly assembled with fastening bolts, connecting blocks are fixedly assembled on the mounting support plates, a cross plate is fixedly assembled on one end of the plurality of connecting blocks, an operating port is arranged on the limiting plate, and the operating port is located on one side of the pin.
[0007] Preferably, a sealing ring is fixedly mounted on the inner wall of the movable shaft ring, and the sealing ring fits the pin shaft.
[0008] Preferably, a plurality of connecting rods are fixedly assembled between the limit plate and the cross plate, the connecting rods are located outside the operating port, a traction block is movably assembled on the connecting rods, a clamping block is fixedly assembled on the traction block, the clamping block is movably assembled with the operating port, and the clamping block is clamped with the clamping slot.
[0009] Preferably, a rotating cavity is provided inside the traction block, an adjusting bolt is threadedly mounted on the cross plate, an assembly rod is fixedly mounted on one end of the adjusting bolt, and the assembly rod movably penetrates the rotating cavity.
[0010] Preferably, a rotating disk is fixedly mounted on one end of the assembly rod, and the rotating disk is movably assembled with the rotating cavity.
[0011] Preferably, a hydraulic press is fixedly mounted on the support body, and a breaker hammer body is mounted on the hydraulic press.
[0012] The utility model is beneficial in that:
[0013] The utility model is to assemble the pin shaft respectively on the inner side of the movable shaft ring on the bearing, fit the limit plate with one end of the pin shaft, at this time, the mounting support plate is correspondingly fitted with the movable shaft ring, and the threaded holes on the mounting support plate and the movable shaft ring are threadedly assembled with fastening bolts, at this time, the clamping block on the traction block is located on one side of the clamping groove, and the adjusting bolt is rotated and moved on the cross plate to make the rotating disk on the assembly rod rotate on the rotating cavity, and the traction block moves on the connecting rod, at this time, the clamping block moves toward the operation port and the clamping groove direction of the pin shaft, and the clamping block is clamped with the clamping groove on the pin shaft, thereby increasing the stability between the pin shaft and the movable shaft ring on the bearing, avoiding damage caused by the movement of the pin shaft on the movable shaft ring, and improving the service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a schematic diagram of the assembly structure of the hydraulic breaker and the sealing and stabilizing mechanism of the utility model;
[0016] Figure 2 This is a schematic diagram of the bearing structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the sealing and stabilizing mechanism structure of the utility model;
[0018] Figure 4It is a schematic cross-sectional structure diagram of the sealing and stabilizing mechanism of the utility model.
[0019] In the figure:
[0020] 10. Breaker body; 11. Hydraulic press; 12. Bracket body; 13. Bearing;
[0021] 20. Pin; 21. Slot; 22. Fixed shaft ring; 23. Movable shaft ring;
[0022] 30. threaded hole; 31. limit plate; 32. connecting plate; 33. mounting support plate;
[0023] 40. Connecting block; 41. Fastening bolt; 42. Cross plate; 43. Connecting rod;
[0024] 50. traction block; 51. operation port; 52. clamping block; 53. adjusting bolt;
[0025] 60. Rotating chamber; 61. Assembly rod; 62. Rotating disk; 63. Sealing ring. DETAILED DESCRIPTION
[0026] 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.
[0027] The following is combined with Figure 1 —4 further details of this application,
[0028] The present application discloses a hydraulic breaker with a long life bearing seal structure. Figure 2 - Figure 4A hydraulic breaker high-life bearing sealing structure includes a bracket body 12, on which a bearing 13 is fixedly mounted, and the bearing 13 includes a fixed shaft ring 22 and a movable shaft ring 23, the movable shaft ring 23 rotates inside the fixed shaft ring 22, the inner wall of the movable shaft ring 23 is fixedly mounted with a sealing ring 63, the movable shaft ring 23 is provided with a plurality of threaded holes 30, the inner side of the movable shaft ring 23 on the bearing 13 is equipped with a pin 20 that fits with the sealing ring 63, both ends of the pin 20 are provided with a card slot 21, both ends of the pin 20 are equipped with a limit plate 31, and the side of the limit plate 31 is fixedly equipped with a connecting rod 20. The connecting plate 32 is fixedly assembled with a mounting support plate 33 at one end of the connecting plate 32, and the mounting support plate 33 and the threaded hole 30 are threadedly assembled with a fastening bolt 41, and the mounting support plate 33 is fixedly assembled with a connecting block 40, and one end of multiple connecting blocks 40 is fixedly assembled with a cross plate 42, and an operating port 51 is provided on the limiting plate 31, and the operating port 51 is located on one side of the pin shaft 20. A plurality of connecting rods 43 are fixedly assembled between the limiting plate 31 and the cross plate 42, and the connecting rod 43 is located on the outside of the operating port 51. A traction block 50 is movably assembled on the connecting rod 43, and a card block 50 that moves in the operating port 51 is fixedly assembled on the traction block 50 2, and the clamping block 52 is clamped with the clamping groove 21, a rotating chamber 60 is provided inside the traction block 50, an adjusting bolt 53 is threadedly assembled on the cross plate 42, one end of the adjusting bolt 53 is fixedly assembled with an assembly rod 61, the assembly rod 61 is movably penetrated into the rotating chamber 60, and one end of the assembly rod 61 is fixedly assembled with a rotating disk 62 that rotates in the rotating chamber 60, the pin shaft 20 is respectively assembled on the inner side of the movable shaft ring 23 on the bearing 13, the limit plate 31 is fitted with one end of the pin shaft 20, at this time, the mounting support plate 33 is correspondingly fitted with the movable shaft ring 23, and the threaded holes 3 on the mounting support plate 33 and the movable shaft ring 23 are 0 is threadedly assembled with a fastening bolt 41. At this time, the clamping block 52 on the traction block 50 is located at one side of the clamping groove 21. The adjusting bolt 53 is rotated and moved on the cross plate 42, so that the rotating disk 62 on the assembly rod 61 rotates on the rotating cavity 60, and the traction block 50 moves on the connecting rod 43. At this time, the clamping block 52 moves toward the operation port 51 and the clamping groove 21 of the pin shaft 20, and the clamping block 52 is clamped with the clamping groove 21 on the pin shaft 20, thereby increasing the stability between the pin shaft 20 and the movable shaft ring 23 on the bearing 13, avoiding damage caused by the movement of the pin shaft 20 on the movable shaft ring 23, and improving the service life of the bearing 13.
[0029] Reference Figure 1 A hydraulic press 11 is fixedly mounted on the support body 12, and a breaker hammer body 10 is mounted on the hydraulic press 11. When the hydraulic press 11 is started, the breaker hammer body 10 can break the ore in the mine.
[0030] Working principle: Assemble the pin shaft 20 on the inner side of the movable shaft ring 23 on the bearing 13 respectively, fit the limit plate 31 with one end of the pin shaft 20, at this time, the mounting support plate 33 corresponds to the movable shaft ring 23, and the threaded holes 30 on the mounting support plate 33 and the movable shaft ring 23 are threadedly assembled with fastening bolts 41, at this time, the clamping block 52 on the traction block 50 is located on one side of the clamping groove 21, and the adjusting bolt 53 is rotated and moved on the cross plate 42, so that the rotating disk 62 on the assembly rod 61 rotates on the rotating cavity 60, and the traction block 50 moves on the connecting rod 43, at this time, the clamping block 52 moves toward the operating port 51 and the clamping groove 21 of the pin shaft 20, and the clamping block 52 is clamped with the clamping groove 21 on the pin shaft 20, thereby increasing the stability between the pin shaft 20 and the movable shaft ring 23 on the bearing 13, avoiding damage caused by the movement of the pin shaft 20 on the movable shaft ring 23, and improving the service life of the bearing 13.
[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A hydraulic breaker with a long life bearing seal structure, characterized by: The invention comprises a support body (12), wherein a bearing (13) is fixedly mounted on the support body (12), wherein the bearing (13) further comprises a fixed shaft ring (22) and a movable shaft ring (23), wherein the movable shaft ring (23) rotates inside the fixed shaft ring (22), wherein the movable shaft ring (23) is provided with a plurality of threaded holes (30), wherein a pin shaft (20) is mounted inside the movable shaft ring (23) on the bearing (13), wherein both ends of the pin shaft (20) are provided with a clamping groove (21), and both ends of the pin shaft (20) are provided with a limit plate ( 31), the side of the limiting plate (31) is fixedly equipped with a connecting plate (32), one end of the connecting plate (32) is fixedly equipped with a mounting support plate (33), the mounting support plate (33) and the threaded hole (30) are threadedly equipped with a fastening bolt (41), the mounting support plate (33) is fixedly equipped with a connecting block (40), one end of the plurality of connecting blocks (40) is fixedly equipped with a cross plate (42), and the limiting plate (31) is provided with an operating port (51), and the operating port (51) is located on one side of the pin shaft (20).
2. A hydraulic breaker long-life bearing sealing structure according to claim 1, characterized in that: The inner wall of the movable shaft ring (23) is fixedly equipped with a sealing ring (63), and the sealing ring (63) is in close contact with the pin shaft (20).
3. A hydraulic breaker long-life bearing sealing structure according to claim 1, characterized in that: A plurality of connecting rods (43) are fixedly assembled between the limit plate (31) and the cross plate (42); the connecting rods (43) are located outside the operating opening (51); a traction block (50) is movably assembled on the connecting rods (43); a clamping block (52) is fixedly assembled on the traction block (50); the clamping block (52) is movably assembled with the operating opening (51), and the clamping block (52) is clamped with the clamping slot (21).
4. A hydraulic breaker long-life bearing sealing structure according to claim 3, characterized in that: A rotating chamber (60) is arranged inside the traction block (50), an adjusting bolt (53) is threadedly mounted on the cross plate (42), one end of the adjusting bolt (53) is fixedly mounted with an assembly rod (61), and the assembly rod (61) movably penetrates the rotating chamber (60).
5. A hydraulic breaker long-life bearing sealing structure according to claim 4, characterized in that: A rotating disk (62) is fixedly mounted on one end of the assembly rod (61), and the rotating disk (62) is movably assembled with the rotating chamber (60).
6. A hydraulic breaker long-life bearing sealing structure according to claim 1, characterized in that: A hydraulic press (11) is fixedly mounted on the support body (12), and a breaker hammer body (10) is mounted on the hydraulic press (11).