Hydraulic breaking hammer with locking structure

Abstract

The utility model discloses a hydraulic breaking hammer with a locking structure, belongs to the technical field of breaking treatment, and aims to solve the problem that bolts on the surface of the hydraulic breaking hammer are easy to loosen in the working process of the hydraulic breaking hammer. By arranging the locking mechanism, the motor is started to drive the positive and negative tooth screw rod to rotate, and under the action of threaded connection, the two groups of movable brackets and the locking blocks on the inner sides can be further driven to synchronously move inwards, so that the two sides of the bolt can be clamped and limited; on the basis that the bolt is fixed, the nut part of the bolt is further limited, the phenomenon that the bolt is loosened under the influence of vibration of an electric appliance is prevented, meanwhile, the shape of the inner side of the locking block is the same as that of the outer side of the bolt, the locking block can be perfectly attached to the outer side of the bolt, and meanwhile under the action of the damping spring sleeve, the locking block can be locked. And the locking block ascends and descends according to the size of the bolt, so that the locking block is suitable for bolts of different specifications and sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing, in particular to a hydraulic breaker provided with a locking structure. Background Technique

[0002] A hydraulic breaker is a tool that uses the force generated by a hydraulic system to break rocks or concrete. It is usually installed on an excavator or a loader and drives the hammer head to impact through a hydraulic system, so as to achieve the crushing operation. It is widely used in construction, mining and demolition projects;

[0003] The existing hydraulic breaker cylinder bodies are fixedly connected by bolts. However, under the vibration of the electrical operation, the bolts on the surface of the hydraulic breaker are loosened due to vibration for a long time, and then the cylinder bodies may fall off in the later stage, and further locking is required to extend its service life and use value. At the same time, during the use of the drill rod, it is in contact with stones for a long time, and debris and other substances are easily adhered to its surface. These adhered debris are not conducive to the later crushing use of the drill rod, and then the subsequent crushing work efficiency is reduced. Therefore, we need to design a hydraulic breaker with a locking structure to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hydraulic breaker with a locking structure to solve the problem that the bolts on the surface of the hydraulic breaker are prone to looseness during the working process in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A hydraulic breaker with a locking structure, including a support body, an upper cylinder body is connected to the inner side of the support body, and a middle cylinder body is connected to the bottom end of the upper cylinder body. A lower cylinder body is connected to the bottom end of the middle cylinder body, and a drill rod is connected to the bottom end of the lower cylinder body. The middle cylinder body is fixedly connected by bolts on both sides. Both sides of the bolt are movably connected with movable brackets, and locking blocks are connected to the inner sides of the movable brackets. Both ends of the locking block are connected to the inner wall of the movable bracket through damping spring sleeves, and locking mechanisms are arranged inside the lower cylinder body.

[0006] As a further description of the above technical solution, the locking mechanism includes a receiving groove, and the receiving grooves are arranged inside the lower cylinder body. A positive and negative thread screw is rotatably connected to the inside of the receiving groove, and a thread sleeve is sleeved on the outside of the positive and negative thread screw. One end of the thread sleeve is connected with a guide block, and the guide block is fixedly connected with the movable bracket. Motors are connected to the inside of the lower cylinder body on one side of the receiving groove.

[0007] As a further description of the above technical solution, the inner shapes of the locking blocks are the same as the outer shapes of the bolts, and the inner sides of the locking blocks are fitted to the outer edges of the bolts.

[0008] As a further description of the above technical solution, cleaning seats are connected to the bottoms of the lower cylinders on the outer sides of the drill rods, and cleaning brushes are connected to the bottoms of the cleaning seats. Installation plates are connected to both sides of the cleaning seats, and threaded grooves are provided inside the installation plates. Threaded rod bodies are movably connected to the inside of the threaded grooves, and handwheels are connected to the bottoms of the threaded rod bodies. Fixing plates are connected to the tops of the threaded rod bodies, and fixing blocks are connected to the tops of the fixing plates. Fixing grooves are provided at the bottoms of the lower cylinders, and the fixing grooves are engaged with the fixing blocks.

[0009] As a further description of the above technical solution, the cross-sections of the anti-slip teeth are all triangular and are arranged at equal intervals on the top of the fixing plate.

[0010] As a further description of the above technical solution, the sizes of the fixing blocks are equal to the sizes of the fixing grooves, and the cross-sections of the fixing blocks are all trapezoidal.

[0011] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0012] By setting the locking mechanism, when the motor is started to drive the forward and reverse threaded screw to rotate and under the action of threaded connection, the two sets of movable brackets and the inner locking blocks can be further driven to move inward synchronously, so as to clamp and limit both sides of the bolt. On the basis of the bolt fixation, the nut part of the bolt can be further limited to prevent it from loosening under the influence of electrical vibration. At the same time, by setting the inner shape of the locking block to be the same as the outer shape of the bolt, it can be perfectly fitted to the outside of the bolt. At the same time, under the action of the damping spring sleeve, the locking block can rise and fall according to the size of the bolt, so that the locking block is suitable for bolts of different specifications and sizes;

[0013] By installing the cleaning seat, during the working process of the drill rod, under the action of hydraulic pressure, when moving up and down, the debris adhered to the outer side of the drill rod can be cleaned by passing through the cleaning brushes on both sides, which is convenient for the subsequent processing work to be completed efficiently and smoothly. At the same time, by rotating the handwheel and under the action of threaded connection, the fixing block is pulled out from the inside of the fixing groove, so as to replace and install the cleaning seat, effectively extending its service life and use value. With the cooperation of the anti-slip teeth, the loosening of the fixing block is prevented, further strengthening the stability and tightness of the fixing component. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic front view structure diagram of the whole of the present invention;

[0016] Figure 2 It is a three-dimensional structure diagram of the fixed structure combination of the cleaning base of the present invention;

[0017] Figure 3 It is the screening box of the present invention Figure 2 The structure diagram at position A in it;

[0018] Figure 4 It is a three-dimensional structure diagram of the bolt and locking block combination of the present invention;

[0019] Figure 5 It is a three-dimensional structure diagram of the locking mechanism combination of the present invention.

[0020] The reference numeral descriptions in the drawings: 1. Bracket body; 2. Upper cylinder body; 3. Middle cylinder body; 4. Lower cylinder body; 5. Cleaning base; 6. Cleaning brush bristles; 7. Drift rod; 8. Bolt; 9. Installation plate; 10. Thread groove; 11. Fixed groove; 12. Fixed block; 13. Anti-slip teeth; 14. Fixed plate; 15. Threaded rod body; 16. Handwheel; 17. Movable bracket; 18. Locking block; 19. Damping spring sleeve; 20. Locking mechanism; 2001. Accommodating groove; 2002. Threaded sleeve; 2003. Guide block; 2004. Left and right hand threaded screw; 2005. Motor. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] The following further describes the present invention in conjunction with the embodiments.

[0023] Embodiment 1:

[0024] Combined with Figure 1 , Figure 4 and Figure 5, including a support body 1, an upper cylinder body 2 is connected to the inner side of the support body 1, and a middle cylinder body 3 is connected to the bottom end of the upper cylinder body 2. A lower cylinder body 4 is connected to the bottom end of the middle cylinder body 3, and a drill rod 7 is connected to the bottom end of the lower cylinder body 4. They are fixedly connected to each other through bolts 8. Both sides of the bolt 8 are movably connected with movable brackets 17, and locking blocks 18 are connected to the inner sides of the movable brackets 17. Both ends of the locking blocks 18 are connected to the inner wall of the movable brackets 17 through damping spring sleeves 19. Locking mechanisms 20 are arranged inside the lower cylinder body 4. The locking mechanism 20 includes receiving grooves 2001, and the receiving grooves 2001 are arranged inside the lower cylinder body 4. A left - and - right - hand screw 2004 is rotatably connected to the inside of the receiving groove 2001, and a threaded sleeve 2002 is sleeved on the outer side of the left - and - right - hand screw 2004. One end of the threaded sleeve 2002 is connected with a guide block 2003, and the guide block 2003 is fixedly connected to the movable bracket 17. Motors 2005 are connected to the inside of the lower cylinder body 4 on one side of the receiving groove 2001. The inner sides of the locking blocks 18 are the same as the outer shape of the bolt 8, and the inner side of the locking block 18 fits with the outer edge of the bolt 8.

[0025] In this embodiment, when the motor 2005 is started to drive the left - and - right - hand screw 2004 to rotate and under the action of threaded connection, the two groups of movable brackets 17 and the inner locking blocks 18 can be further driven to move synchronously inward, so as to clamp and limit both sides of the bolt 8. On the basis of the fixation of the bolt 8, further limit the nut part of the bolt 8 to prevent it from loosening under the influence of electrical vibration, and further prevent oil leakage due to the loosening between the cylinder bodies.

[0026] Embodiment Two:

[0027] Combined with Figure 1 、 Figure 2 and Figure 3 , cleaning seats 5 are connected to the bottom ends of the lower cylinder bodies 4 on the outer side of the drill rod 7, and cleaning brushes 6 are connected to the bottom ends of the cleaning seats 5. Installation plates 9 are connected to both sides of the cleaning seats 5, and threaded grooves 10 are arranged inside the installation plates 9. Threaded rod bodies 15 are movably connected to the inside of the threaded grooves 10, and handwheels 16 are connected to the bottom ends of the threaded rod bodies 15. Fixing plates 14 are connected to the top ends of the threaded rod bodies 15, and fixing blocks 12 are connected to the top ends of the fixing plates 14. Fixing grooves 11 are arranged at the bottom ends of the lower cylinder bodies 4, and the fixing grooves 11 are engaged with the fixing blocks 12. The cross - sections of the anti - slip teeth 13 are all triangular and are arranged at equal intervals at the top ends of the fixing plates 14. The sizes of the fixing blocks 12 are equal to the sizes of the fixing grooves 11, and the cross - sections of the fixing blocks 12 are all trapezoidal.

[0028] In this embodiment, by installing the cleaning seat 5, during the working process of the drill rod 7, under the action of hydraulic pressure, when the drill rod 7 moves up and down and passes through the cleaning bristles 6 on both sides, the debris adhering to the outside of the drill rod 7 can be cleaned. By rotating the handwheel 16 and under the action of threaded connection, the fixing block 12 is withdrawn from the inside of the fixing groove 11, so that the cleaning seat 5 can be replaced and installed, effectively extending its service life and usage value.

[0029] Working principle: During use, high-pressure oil flows into the inside of the cylinder block from the inlet. The high-pressure oil raises the piston. The oil reaches the piston in the oil guide groove of the oil cylinder, and then the high-pressure oil flows into the control valve core from the oil groove. The difference in the high and low parts of the oil in the valve core is used to raise the valve core. Coupled with the pressure of nitrogen, the piston is pushed down to impact the drill rod 7 to complete the crushing work process. When the drill rod 7 moves up and down, it passes through the cleaning seat 5, and the debris on its surface can be cleaned, promoting the smooth progress of subsequent crushing processing work.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic breaker provided with a locking structure, comprising a support body (1), characterized in that: The inner side of the support body (1) is connected with an upper cylinder body (2), and the bottom end of the upper cylinder body (2) is connected with a middle cylinder body (3). The bottom end of the middle cylinder body (3) is connected with a lower cylinder body (4), and the bottom end of the lower cylinder body (4) is connected with a drill rod (7). They are fixedly connected to each other through bolts (8). Both sides of the bolt (8) are movably connected with movable brackets (17), and the inner sides of the movable brackets (17) are both connected with locking blocks (18). Both ends of the locking block (18) are connected with the inner wall of the movable bracket (17) through damping spring sleeves (19). A locking mechanism (20) is arranged inside the lower cylinder body (4).

2. A hydraulic breaker provided with a locking structure according to claim 1, wherein: The locking mechanism (20) includes receiving grooves (2001), and the receiving grooves (2001) are arranged inside the lower cylinder body (4). A left - and - right - hand threaded screw rod (2004) is rotatably connected inside the receiving groove (2001), and a threaded sleeve (2002) is sleeved on the outer side of the left - and - right - hand threaded screw rod (2004). One end of the threaded sleeve (2002) is connected with a guide block (2003), and the guide block (2003) is fixedly connected with the movable bracket (17). A motor (2005) is connected inside the lower cylinder body (4) on one side of the receiving groove (2001).

3. A hydraulic breaker provided with a locking structure according to claim 1, wherein: The inner shapes of the locking blocks (18) are the same as the outer shapes of the bolts (8), and the inner sides of the locking blocks (18) are in contact with the outer edges of the bolts (8).

4. A hydraulic breaker provided with a locking structure according to claim 3, characterized in that: Cleaning seats (5) are connected to the bottom ends of the lower cylinder bodies (4) on the outer sides of the drill rods (7), and cleaning brush hairs (6) are connected to the bottom ends of the cleaning seats (5). Installation plates (9) are connected to both sides of the cleaning seat (5), and threaded grooves (10) are arranged inside the installation plates (9). Threaded rod bodies (15) are movably connected inside the threaded grooves (10), and hand wheels (16) are connected to the bottom ends of the threaded rod bodies (15). Fixed plates (14) are connected to the top ends of the threaded rod bodies (15), and fixing blocks (12) are connected to the top ends of the fixed plates (14). Fixed grooves (11) are arranged at the bottom ends of the lower cylinder bodies (4), and the fixing blocks (12) are engaged with the fixed grooves (11).

5. A hydraulic breaker provided with a locking structure according to claim 4, characterized in that: The cross - sections of the anti - slip teeth (13) are all triangular, and they are arranged at equal intervals at the top ends of the fixed plates (14).

6. The hydraulic breaker provided with a locking structure according to claim 4, characterized in that: The sizes of the fixing blocks (12) are equal to the sizes of the fixed grooves (11), and the cross - sections of the fixing blocks (12) are all trapezoidal.

Images