Electric control impact hammer hook arm

Abstract

The utility model discloses an electric control impact hammer hook arm which comprises an integrated cylinder body, an end cover is arranged in the integrated cylinder body, the interior of the integrated cylinder body is divided into a nitrogen cavity, an upper hydraulic cavity, a lower hydraulic cavity and a guide cavity, and a small arm is integrally arranged on the outer side of the integrated cylinder body; a magnetic ring is arranged in the nitrogen cavity; the two sides of the cutting board are detachably connected with double guide shafts for guiding, and the integrated cylinder body is further provided with a hydraulic pipeline and an electromagnetic valve for controlling the direction of the hydraulic pipeline; the shaft core is movably arranged in the cylinder body under the driving of hydraulic pressure; the execution component is arranged at the lower part of the shaft core and is movably connected with the cylinder body; the top of the shaft core is connected with a piston, and the periphery of the piston is sleeved with the magnetic ring. According to the impact hammer adopting the technical scheme, the mass of a rock drilling impacter is smaller, the manufacturing process is simpler, the hydraulic input pressure is higher, the impact energy is larger, and the equipment efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic hammer, concretely relates to electric control impact hammer hook arm. BACKGROUND

[0002] Hydraulic breaking hammer, also known as hydraulic breaker or hydraulic stone breaker, is an important working tool of hydraulic excavator, mainly powered by liquid static pressure, drives piston reciprocating motion, through high-speed impact of piston stroke on drill rod, realizes the breaking of ore, concrete and other solids, and is widely used in municipal road repair, steel plant, water conservancy project, mine, bridge, building construction and other fields.

[0003] The Chinese patent with the application number CN202411128388.3 discloses a kind of hydraulic breaking hammer, including hammer body, hammer body lower end movably connected with drill rod, further including: double-side balance monitoring mechanism, multidirectional bending detection mechanism and breaking auxiliary anti-abrasion mechanism, and double-side balance monitoring mechanism, multidirectional bending detection mechanism and breaking auxiliary anti-abrasion mechanism are all set in hammer body lower end, through the setting of double-side balance monitoring mechanism, in the process of reciprocating breaking of drill rod in hammer body upper and lower movement to lower to-be-broken material, the inclination of balance plate appears to push moving plate to move.

[0004] With the further research of applicant, it is found that due to the eccentric cam structure of the breaking hammer, the piston reciprocating motion is driven, and the drill rod is impacted at high speed in the stroke, limited by its structure, when breaking higher hardness rock and other engineering operations, the breaking effect is not ideal. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] Electric control impact hammer hook arm, comprising:

[0007] Including cylinder body, the integrated cylinder body has end cover, end cover has buffer pad, integrated cylinder body is divided into nitrogen cavity, upper hydraulic chamber, lower hydraulic chamber and guide cavity;

[0008] Knife plate, both sides are detachably connected with double guide shaft, the integrated cylinder body is further provided with hydraulic pipeline and electromagnetic valve for controlling the direction of the hydraulic pipeline;

[0009] Shaft core, which is movably arranged in the cylinder body under the drive of hydraulic pressure;

[0010] Execution component, arranged at the lower part of the shaft core and movably connected with the cylinder body;

[0011] The shaft core top is connected with piston, magnetic ring seat and pressure ring, the outer periphery of the piston is sleeved with magnetic ring, and the magnetic ring moves in the nitrogen cavity.

[0012] The cylinder is provided with at least one pair of first and second magnetic switches electrically connected with the electromagnetic valve, and the magnetic ring is detected by the first and second magnetic switches when the shaft core moves to the highest point and the lowest point after the action of the execution component.

[0013] Further, the cylinder has a nitrogen cavity filled with nitrogen, and the piston moving stroke is within the range of the nitrogen cavity.

[0014] Further, the execution component comprises a striking head coaxially arranged with the shaft core and a blade plate connected to the lower end of the striking head.

[0015] Further, a plurality of pairs of double guide shafts are connected between the blade plate and the cylinder, and the outer periphery of the double guide shafts is provided with a reset spring.

[0016] Further, the cylinder has a hydraulic oil port.

[0017] Further, the cylinder is also provided with a lubricating oil injection port.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] In the utility model, the hydraulic driven piston is used to reciprocate in the cylinder with the shaft core, and the execution component is impacted, so that the execution component can crush the work object, the structure has super strong impact force and stable performance, and is suitable for super large scale crushing work of high hardness rock and concrete.

[0020] The impact hammer adopting the technical scheme can have smaller rock drilling impactor mass, simpler manufacturing process, higher hydraulic input pressure, larger impact energy and higher equipment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a cross-sectional structure schematic view of the electric control impact hammer hook arm embodiment of the utility model;

[0022] Figure 2 It is another view of the cross-sectional structure schematic view of the electric control impact hammer hook arm embodiment of the utility model;

[0023] Figure 3 It is a three-dimensional structure schematic view of the electric control impact hammer hook arm embodiment of the utility model assembled on a work vehicle;

[0024] Figure 4 It is a front view structure schematic view of the electric control impact hammer hook arm embodiment of the utility model;

[0025] Figure 5 It is an explosion structure schematic view of the electric control impact hammer hook arm embodiment of the utility model;

[0026] The reference signs in the drawings of the specification include:

[0027] Cylinder 1, nitrogen cavity 10, hydraulic oil port 11, lubricating oil injection port 12, nitrogen connection port 13, cylinder inner ring 14, electromagnetic valve 2, shaft core 30, piston 31, magnetic ring 32, first magnetic force switch 40, second magnetic force switch 41, striking head 50, knife plate 51, double guide shaft 52, reset spring 53, work vehicle 6, end cover 70, buffer pad 700, intermediate partition plate 701, upper hydraulic cavity 71, lower hydraulic cavity 72, guide cavity 73. DETAILED DESCRIPTION

[0028] In order for those skilled in the art to better understand the present application, the technical scheme of the present application will be further described below in combination with the drawings and examples.

[0029] Among them, the drawings are only used for example explanation, and the representation is only a schematic diagram, not a real object diagram, and cannot be understood as a limitation on the patent; in order to better illustrate the embodiments of the present application, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings can be omitted; the same or similar components in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, structure and operation, therefore the terms describing the positional relationship in the drawings are only used for example explanation, and cannot be understood as a limitation on the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0030] As shown in Figure 1 - Figure 5 The electric control impact hammer hook arm of the present application comprises a cylinder 1, which is integrally welded and formed, the cylinder 1 has an end cover 70, the end cover 70 has a buffer pad 700, the cylinder is divided into a nitrogen cavity 10, an upper hydraulic cavity 71, a lower hydraulic cavity 72 and a guide cavity 73 by the upper end cover 70, the intermediate partition plate 701 and the cylinder inner ring 14.

[0031] The small arm is integrally welded or integrally formed outside the cylinder 1, the cylinder side has an oil cylinder connecting hole and a large arm connecting hole. The large arm and the oil cylinder are integrally connected with the cylinder.

[0032] The magnetic ring 32 is arranged in the nitrogen cavity 10.

[0033] The cylinder body has a bidirectional guide hole parallel to the cylinder hole. The two sides of the cutter plate 51 are detachably connected with double guide shafts 52, and the integrated cylinder body 1 is further provided with a hydraulic pipeline and an electromagnetic valve 2 for controlling the direction of the hydraulic pipeline.

[0034] A partition and a lining plate are arranged in the cylinder body to change the internal shape of the cylinder body and form a plurality of cavities. The striking head 50 moves in the guide cavity 73, which plays a role in stabilizing the guide during striking.

[0035] The shaft core 30 is movably arranged in the cylinder body 1 under the drive of hydraulic pressure.

[0036] The execution component is arranged at the lower part of the shaft core 30 and movably connected with the cylinder body 1.

[0037] The shaft core 30 is connected with a piston 31 at the top, the piston 31 is sleeved with a magnetic ring 32 at the outer periphery, and the piston 31 is connected with the shaft core 30 by means of a clasp ring.

[0038] The cylinder body 1 is provided with at least one pair of first magnetic switches 40 and second magnetic switches 41 electrically connected with the electromagnetic valve 2, and when the shaft core 30 acts on the execution component and moves to the highest point and the lowest point, the magnetic ring 32 is detected by the first magnetic switch 40 and the second magnetic switch 41 respectively.

[0039] In the utility model, the hydraulic driven piston 31 is used to make the shaft core 30 reciprocate in the cylinder body 1 and impact the execution component, so that the execution component can crush the work object, the structure has super strong impact force and stable performance, is suitable for super large scale crushing work of high hardness rock and concrete. In addition, the magnetic ring 32 is arranged at the outer periphery of the piston 31, the magnetic ring 32 is matched with the electromagnetic valve 2, the oil feeding and returning time and direction of the hydraulic system are controlled, and thus precise logic control is realized.

[0040] In the hydraulic pipeline, the oil feeding and returning state is controlled by the electromagnetic valve 2. The stroke of the piston 31 and the shaft core 30 is determined by the first magnetic switch 40 and the second magnetic switch 41, the feedback voltage signal is received by the control circuit, the state of the electromagnetic valve 2 is switched, the oil feeding and returning state of the piston 31 is controlled, and the piston 31 and the shaft core 30 continuously reciprocate.

[0041] In addition, the cylinder body 1 has a nitrogen cavity 10 filled with nitrogen, and the moving stroke of the piston 31 is within the range of the nitrogen cavity 10.

[0042] The middle part of the integrated cylinder body 1 is a detachable piston ring, and the lower end is a striking head.

[0043] When the piston 31 moves upward, the nitrogen gas filled in the nitrogen cavity 10 is compressed, so that the piston 31 can store energy in the return stroke, and when the piston 31 moves downward to hit the head 50, the energy from the hydraulic system, the stored energy and the gravity are output, and the impact blade 51 is hit to achieve the purpose of breaking rocks.

[0044] The piston 31 is braked under the action of high-pressure oil and nitrogen gas in the nitrogen cavity 10, and the piston 31 continues to move upward, and the upward speed gradually decreases until the speed is zero. The piston 31 rises to the highest position, and the return stroke of the piston 31 ends.

[0045] When the nitrogen cavity 10 is pre-charged with nitrogen to 2MPa, the shaft core 30 moves to the highest point when entering the hydraulic pressure at the lower hydraulic port, the nitrogen pressure is compressed, the magnetic ring 32 is detected by the first magnetic switch, and the reversing electromagnetic valve is reversed, the oil inlet of the lower cylinder body is changed to oil return, the oil port of the upper cylinder body is changed to oil inlet, under the action of hydraulic pressure, nitrogen expansion force and shaft core gravity, the shaft core hits the head, the double shaft guide loosening blade, the springs at both ends of the cylinder body are compressed, and the blade vertically impacts the rock. At this time, the upper end magnetic ring of the shaft core 30 has moved to the signal detected by the second magnetic switch, the reversing electromagnetic valve is reversed, and the shaft core moves upward.

[0046] The cylinder body 1 is provided with a nitrogen connecting port 13 communicated with the nitrogen cavity 10. The nitrogen connecting port 13 is connected with an external nitrogen source pipeline.

[0047] The impact hammer adopting the technical scheme can make the rock drilling impactor smaller in mass, simpler in manufacturing process, higher in hydraulic input pressure, larger in impact energy and higher in equipment efficiency.

[0048] Specifically, the execution component includes a head 50 coaxially arranged with the shaft core 30 and an impact blade 51 connected to the lower end of the head 50. In order to keep the above-mentioned two coaxial, a positioning clasp ring can be used for fixing and connecting.

[0049] In addition, a plurality of pairs of double guide shafts 52 are connected between the impact blade 51 and the cylinder body 1, and the double guide shafts 52 are provided with reset springs 53 outside.

[0050] As shown in Figure 2 The cylinder body 1 is provided with a hydraulic oil port 11, which is divided into an upper oil port and a lower oil port, and they are used as connection parts with liquid pipelines.

[0051] To prevent the shaft core 30 and the piston 31 from being mechanically worn with the inner wall of the cylinder body 1 in long time use, a plurality of lubricating oil injection ports 12 are arranged on the cylinder body 1 at corresponding positions, and butter can be regularly added through the lubricating oil injection ports 12 to extend the mechanical service life. The continuous lubrication protection of butter can facilitate the shaft core 30 and the striking head 50 to keep good contact with the cylinder body 1, avoid loosening or jamming phenomenon caused by friction, and improve the stability and reliability of the whole structure, thereby ensuring the smooth operation of the crushing operation.

[0052] In addition, the setting position of the impact hammer in the working vehicle 6 is as shown in Figure 3 The connection mode between the above two can use the prior art and is easy to realize, and does not belong to the protection range of the present application, and therefore has the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described here.

[0053] The above is only an embodiment of the present application, and the well-known specific structures and properties in the scheme are not described in detail here. The ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the filing date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date. The ordinary skilled person in the art can perfect and implement the present scheme under the inspiration given by the present application combined with their own ability. Some typical well-known structures or well-known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be noted that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection range of the present application. These will not affect the implementation effect and practicality of the present application.

Claims

1. An electrically controlled impact hammer hook arm characterized by, The utility model relates to a kind of hydraulic cylinder, including: Cylinder (1), the cylinder (1) is integrally formed, nitrogen cavity (10), upper hydraulic chamber (71), lower hydraulic chamber (72) and guide cavity (73) are included in the cylinder (1); Magnetic ring (32) is arranged in nitrogen cavity; Knife plate (51), both sides are detachably connected with double guide shaft (52) for guiding, the cylinder (1) is further provided with hydraulic pipeline and solenoid valve (2) for controlling the direction of the hydraulic pipeline; Shaft core (30) is movably arranged in the cylinder (1) under the drive of hydraulic pressure; Execution component is arranged in the lower part of the shaft core (30) and is movably connected with cylinder (1); The top of the shaft core (30) is connected with piston (31), and the magnetic ring (32) is sleeved on the outer periphery of piston (31); The cylinder (1) is provided with at least a pair of first magnetic switch (40) and second magnetic switch (41) electrically connected with the solenoid valve (2), when the execution component is moved to the highest point and the lowest point after the action of the shaft core (30), the magnetic ring (32) is detected by first magnetic switch (40) and second magnetic switch (41) respectively.

2. The electrically controlled impact hammer hook arm of claim 1, wherein: Small arm is arranged outside the cylinder (1), and the small arm is integrally connected with the cylinder (1).

3. The electrically controlled impact hammer hook arm of claim 1, wherein: The cylinder (1) has end cover (70), and the end cover (70) has buffer pad (700).

4. The electrically controlled impact hammer hook arm of claim 1, wherein: The moving stroke of the piston (31) is within the range of the nitrogen cavity (10).

5. The electrically controlled impact hammer hook arm of claim 1, wherein: The execution component includes striking head (50) coaxially arranged with the shaft core (30), and the knife plate (51) is connected with the lower end of the striking head (50).

6. The electrically controlled impact hammer hook arm of claim 1, wherein: Reset spring (53) is arranged on the outer periphery of the double guide shaft (52).

7. An electrically controlled impact hammer hook arm as claimed in any one of claims 1 to 6, wherein: The cylinder (1) has hydraulic oil port (11).

8. The electrically controlled impact hammer hook arm of claim 7, wherein: The cylinder (1) is further provided with lubricating oil injection port (12).

9. An electrically controlled impact hammer hook arm as claimed in claim 1 or 2, characterized in that: Large arm and oil cylinder are arranged outside the cylinder (1), and the large arm and the oil cylinder are integrally connected with the cylinder (1).

Images