Damping rod of breaking hammer

Abstract

The utility model relates to the technical field of breaking accessories, in particular to a breaking hammer damping rod which comprises a breaking hammer and a drill rod connected to the top of the breaking hammer, and a top sliding seat is installed in the drill rod in a sliding mode. The first groove and the second groove are formed in the drill rod, and the reset spring and the steel column are installed in the first groove and the second groove, so that an effective vibration reduction mechanism is formed. When the breaking hammer is impacted, the steel column can slide in the first groove, meanwhile, the reset spring is compressed, impact energy is absorbed through elastic deformation of the spring, and the damping effect is further enhanced through the arrangement of the hard spring. The top sliding seat is wound on the outer wall of the steel column in the second groove, and the top and the bottom of the top sliding seat are fixedly connected with the bottom of the second groove respectively. When the top sliding seat slides in the drill rod, the hard spring deforms, so that more impact energy is absorbed, and vibration transmitted to the breaking hammer is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing accessories, in particular to a vibration damping rod for a crushing hammer. Background Art

[0002] Breaker hammers are mainly used in high-speed railways, highway tunnels, mine tunnel excavation and other engineering fields, and are the main construction equipment for non-explosive excavation. Breaker hammers use liquid static pressure as power to drive the piston to reciprocate. The piston hits the drill rod at high speed during the stroke, and the drill rod breaks the ore or concrete. The hydraulic breaker hammers currently used have poor buffering and shock absorption effects because they do not have a vibration reduction device. When the drill rod hits the object to be broken, it will produce violent vibrations. The huge counter-impact force can easily cause damage to the breaker hammer, which has an adverse effect on the service life of the breaker hammer. Utility Model Content

[0003] The utility model aims to provide a vibration damping rod for a breaker hammer, so as to solve the problem in the above background technology that when the drill rod hits the object to be broken, violent vibration will be generated, and the huge counter-impact force may easily cause damage to the breaker hammer, which has an adverse effect on the service life of the breaker hammer.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A vibration damping rod for a breaker hammer comprises a breaker hammer and a drill rod connected to the top of the breaker hammer, wherein a top sliding seat is slidably installed in the drill rod;

[0006] The drill rod is provided with a first groove and a second groove which are coaxially arranged, a return spring is installed at the bottom of the first groove, a bottom slide is slidably installed in the first groove, a steel column is coaxially connected to the top of the bottom slide, the top of the steel column extends into the second groove, and a hard spring is wound around the outer wall of the steel column in the second groove, the top of the hard spring is fixedly connected to the bottom of the top slide, and the bottom of the hard spring is fixedly connected to the bottom of the second groove;

[0007] The bottom of the top sliding seat is coaxially fixedly connected to the top of the steel column.

[0008] Preferably, the outer diameter of the bottom slide seat is matched with the inner diameter of the first groove and the two are slidably matched, and the diameter of the steel column is smaller than the diameter of the bottom slide seat.

[0009] Preferably, the top slide seat and the second groove have inner diameters that match each other and are slidably matched.

[0010] Preferably, a connecting rod is coaxially arranged on the top of the top slide, and a mounting plate is coaxially connected to the top of the connecting rod.

[0011] Preferably, a plurality of fixing holes arranged evenly and equidistantly are formed on the edge of the top surface of the mounting plate.

[0012] Preferably, a shock-absorbing ring seat is installed on the top inner wall of the second groove.

[0013] Preferably, the shock-absorbing ring seat includes a shock-absorbing spring steel layer and a wear-resistant layer arranged at the bottom of the shock-absorbing spring steel layer.

[0014] Preferably, a bonding top seat connected to the top inner wall of the second groove is provided on the top of the shock-absorbing spring steel layer.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the vibration damping rod of the breaker hammer, an effective vibration damping mechanism is formed by the first groove and the second groove opened in the drill rod, and the reset spring and the steel column installed therein. When the breaker hammer is impacted, the steel column can slide in the first groove and compress the reset spring at the same time, absorbing the impact energy through the elastic deformation of the spring. The setting of the hard spring further enhances the vibration damping effect. It is wound around the outer wall of the steel column located in the second groove, and its top and bottom are fixedly connected to the top slide and the bottom of the second groove respectively. When the top slide slides in the drill rod, the hard spring will deform, thereby absorbing more impact energy and further reducing the vibration transmitted to the breaker hammer.

[0017] 2. In the vibration damping rod of the breaker hammer, the outer diameter of the bottom slide is matched with the inner diameter of the first groove, which ensures the stable sliding of the bottom slide in the first groove, reduces friction and resistance, and improves the vibration reduction effect. The diameter of the steel column is smaller than the diameter of the bottom slide. This design enables the steel column to smoothly extend and retract in the bottom slide, while ensuring the stability and strength of the structure.

[0018] 3. In the vibration damping rod of the breaker hammer, the vibration damping ring seat is composed of a vibration damping spring steel layer, a wear-resistant layer and a bonding top seat. This structure enables the vibration damping ring seat to have both good elastic vibration damping performance and sufficient wear resistance and strength, thereby ensuring its long-lasting and stable working effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, further detailed explanation is provided, but the accompanying drawings do not constitute a limitation to the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the shock-absorbing ring seat of the utility model.

[0023] The meaning of the symbols in the figure:

[0024] 10. Drill rod; 11. First groove; 12. Return spring; 13. Steel column; 14. Second groove; 15. Bottom slide seat; 16. Hard spring;

[0025] 20. Breaker;

[0026] 30. Top slide; 31. Connecting rod; 32. Mounting plate; 33. Fixing hole;

[0027] 40. Shock-absorbing ring seat; 41. Shock-absorbing spring steel layer; 42. Wear-resistant layer; 43. Bonding top seat. DETAILED DESCRIPTION

[0028] The following will combine the embodiments of the utility model and the drawings of the specification 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 of 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.

[0029] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] A vibration damping rod for a breaker hammer, such as Figure 1-Figure 3As shown, it includes a breaker hammer 20 and a drill rod 10 connected to the top of the breaker hammer 20, and a top slide 30 is slidably installed in the drill rod 10; a first groove 11 and a second groove 14 are coaxially arranged in the drill rod 10, a reset spring 12 is installed at the bottom of the first groove 11, a bottom slide 15 is slidably installed in the first groove 11, a steel column 13 is coaxially connected to the top of the bottom slide 15, the top of the steel column 13 extends into the second groove 14, and a hard spring 16 is wound on the outer wall of the steel column 13 located in the second groove 14, the top of the hard spring 16 is fixedly connected to the bottom of the top slide 30, and the bottom of the hard spring 16 is fixedly connected to the bottom of the second groove 14; the bottom of the top slide 30 is coaxially fixedly connected to the top of the steel column 13, and an effective vibration reduction mechanism is formed by the first groove 11 and the second groove 14 opened in the drill rod 10, and the reset spring 12 and the steel column 13 installed therein. When the breaker is impacted, the steel column 13 can slide in the first groove 11 and compress the reset spring 12 at the same time, absorbing the impact energy through the elastic deformation of the spring. The setting of the hard spring 16 further enhances the vibration reduction effect. It is wound around the outer wall of the steel column 13 located in the second groove 14, and its top and bottom are fixedly connected to the top slide 30 and the bottom of the second groove 14 respectively. When the top slide 30 slides in the drill rod 10, the hard spring 16 will deform, thereby absorbing more impact energy and further reducing the vibration transmitted to the breaker.

[0031] It is worth noting that the outer diameter of the bottom slide 15 is adapted to the inner diameter of the first groove 11 and the two are slidably matched, the diameter of the steel column 13 is smaller than the diameter of the bottom slide 15, and the top slide 30 is adapted to the inner diameter of the second groove 14 and the two are slidably matched. By setting the outer diameter of the bottom slide 15 to be adapted to the inner diameter of the first groove 11, the stable sliding of the bottom slide 15 in the first groove 11 is ensured, the friction and resistance are reduced, and the vibration reduction effect is improved. The diameter of the steel column 13 is smaller than the diameter of the bottom slide 15. This design enables the steel column 13 to be smoothly extended and retracted in the bottom slide 15, while ensuring the stability and strength of the structure.

[0032] Furthermore, a connecting rod 31 is coaxially arranged on the top of the top slide 30, and a mounting plate 32 is coaxially connected to the top of the connecting rod 31. A plurality of fixing holes 33 arranged evenly and equidistantly are provided on the top edge of the mounting plate 32. By providing the connecting rod 31 and the mounting plate 32, a convenient connection and fixing method is provided for the breaker. The fixing holes 33 on the mounting plate 32 enable the breaker to be firmly mounted on other equipment, thereby improving the stability and reliability of the overall structure.

[0033] Specifically, a shock-absorbing ring seat 40 is installed on the top inner wall of the second groove 14 , and the provision of the shock-absorbing ring seat 40 further enhances the vibration reduction effect.

[0034] In addition, the shock-absorbing ring seat 40 includes a shock-absorbing spring steel layer 41, a wear-resistant layer 42 arranged at the bottom of the shock-absorbing spring steel layer 41, and a bonding top seat 43 connected to the top inner wall of the second groove 14 is arranged on the top of the shock-absorbing spring steel layer 41. The shock-absorbing ring seat 40 is composed of the shock-absorbing spring steel layer 41, the wear-resistant layer 42 and the bonding top seat 43. This structure enables the shock-absorbing ring seat 40 to have both good elastic shock-absorbing performance and sufficient wear resistance and strength, thereby ensuring its long-lasting and stable working effect.

[0035] The working principle of the vibration damping rod of the breaker hammer: When the breaker hammer 20 starts to work, it is impacted from the working surface. These impacts are first transmitted to the drill rod 10, which in turn pushes the top slide 30 to slide inside the drill rod 10. As the top slide 30 slides, the steel column 13 begins to slide in the first groove 11 and compresses the reset spring 12 at the bottom. The elastic deformation of the reset spring 12 begins to absorb part of the impact energy, playing a preliminary vibration reduction role. At the same time, the sliding of the top slide 30 also causes the hard spring 16 to deform. Since the hard spring 16 is wound around the steel column 13, its deformation further absorbs the impact energy and enhances the overall vibration reduction effect. As the breaker hammer 20 continues to work, the vibration reduction mechanism continuously absorbs and disperses the impact energy, ensuring that the vibration of the breaker hammer and the drill rod is effectively reduced, thereby improving the stability and service life of the equipment.

[0036] 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. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vibration damping rod for a breaker hammer, comprising a breaker hammer (20) and a drill rod (10) connected to the top of the breaker hammer (20), characterized in that: A top sliding seat (30) is slidably mounted in the drill rod (10); The drill rod (10) is provided with a coaxially arranged first groove (11) and a second groove (14), a return spring (12) is installed at the bottom of the first groove (11), a bottom slide seat (15) is slidably installed in the first groove (11), a steel column (13) is coaxially connected to the top of the bottom slide seat (15), the top of the steel column (13) extends into the second groove (14), and a hard spring (16) is wound around the outer wall of the steel column (13) located in the second groove (14), the top of the hard spring (16) is fixedly connected to the bottom of the top slide seat (30), and the bottom of the hard spring (16) is fixedly connected to the bottom of the second groove (14); The bottom of the top sliding seat (30) is coaxially fixedly connected to the top of the steel column (13).

2. The vibration damping rod of a breaker hammer according to claim 1, characterized in that: The outer diameter of the bottom slide seat (15) is matched with the inner diameter of the first groove (11) and the two are slidably matched, and the diameter of the steel column (13) is smaller than the diameter of the bottom slide seat (15).

3. The vibration damping rod of a breaker hammer according to claim 1, characterized in that: The top sliding seat (30) and the second groove (14) have inner diameters that match each other and are slidably matched.

4. The vibration damping rod of a breaker hammer according to claim 1, characterized in that: A connecting rod (31) is coaxially arranged on the top of the top sliding seat (30), and a mounting plate (32) is coaxially connected to the top of the connecting rod (31).

5. The vibration damping rod of a breaker hammer according to claim 4, characterized in that: The top edge of the mounting plate (32) is provided with a plurality of fixing holes (33) arranged evenly and equidistantly.

6. The vibration damping rod of a breaker hammer according to claim 1, characterized in that: A shock-absorbing ring seat (40) is installed on the top inner wall of the second groove (14).

7. The vibration damping rod of a breaker hammer according to claim 6, characterized in that: The shock-absorbing ring seat (40) comprises a shock-absorbing spring steel layer (41) and a wear-resistant layer (42) arranged at the bottom of the shock-absorbing spring steel layer (41).

8. The vibration damping rod of a breaker hammer according to claim 7, characterized in that: The top of the shock-absorbing spring steel layer (41) is provided with an adhesive top seat (43) connected to the top inner wall of the second groove (14).

Images