CN214530121U - Resonance crushing mechanism for cement concrete pavement crusher - Google Patents

Abstract

The utility model discloses a cement concrete pavement breaker is with broken mechanism of resonance belongs to engineering machine tool, road building machinery and road surface maintenance machinery, the utility model discloses a vibration of excitation case drives the high-speed vibration of resonance crossbeam, produces flexible deformation, transmits high-frequency vibration to the crushing head of another tip of resonance crossbeam simultaneously, and the crushing head strikes the concrete pavement, accomplishes the rubble chemical treatment of concrete pavement; the utility model adopts the breaking hammer head with the circular bulge, which can obviously reduce the contact area, thereby increasing the contact stress in the vibration breaking process, thus having better breaking effect and effectively improving the construction efficiency; the weight that the counter weight device used is the square weight that both sides were beaten the screw, the balance of assurance quality that can be better to adopt the counter weight mode that adds the weight one by one, can conveniently adjust the counter weight in a flexible way.

Description

Resonance crushing mechanism for cement concrete pavement crusher

Technical Field

The utility model relates to a broken mechanism of resonance for cement concrete pavement breaker belongs to engineering machine tool, road building machinery and road surface maintenance machinery field.

Background

In order to achieve the effects of environmental protection, dust prevention, noise reduction and driving comfort increase, more and more cities perform asphalt transformation on cement concrete roads in the district. The construction of the plate crushing link is difficult to avoid causing troubles to the life and the trip of citizens, and how to improve the efficiency of the crusher becomes the problem to be solved urgently.

The existing counterweight device of the resonance crusher keeps self balance mainly by increasing the weight of the mechanism, and has a lot of inconvenience in transportation and assembly due to the large mass of the counterweight, so that a lot of manpower and financial resources are consumed in the installation and transportation process. Moreover, most weight irons used in weight boxes do not have central symmetry, which makes it difficult to center the weight iron center of gravity at the center point, and the mass balance cannot be well maintained when the engineering demands high precision.

In addition, the existing crushing head has a flat surface and a large contact area with a road surface, so that the local contact stress is small, the crushing effect during operation is poor, and the construction quality and the efficiency of a plate crushing link are influenced to a certain extent.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides a resonance crushing mechanism for a cement concrete pavement crusher, which drives a resonance beam to vibrate at a high speed by the vibration of an excitation box, thereby generating flexible deformation, simultaneously transmitting high-frequency vibration to a crushing head at the other end of the resonance beam, knocking the concrete pavement by the crushing head, and completing the rubblization treatment of the concrete pavement; the mass of the counterweight device is adjusted by increasing or decreasing the internal weights, so that the problems of uneven mass distribution of the counterweight device and complicated installation and transportation of heavy weight boxes are solved; meanwhile, by changing the structure of the breaking hammer head, the problems of small contact stress and poor breaking effect are solved, and the construction efficiency and quality are improved.

In order to achieve the above object, the present invention provides the following technical solutions:

a resonance crushing mechanism for a cement concrete pavement crusher comprises a resonance beam, an excitation box, a crushing head, a frame, a counterweight device, a counterweight support arm, a counterweight bearing and a lifting oil cylinder;

the counterweight device comprises a counterweight box, a container cover, counterweight weights and screws, wherein the counterweight box and the counterweight weights are provided with screw holes on the side surfaces, the positions of the screw holes correspond to each other, and the counterweight box and the counterweight weights are fixed through the screws.

Preferably, the starting end of the resonance beam is connected with an excitation box, the excitation box is connected with an excitation motor, the tail end of the resonance beam is connected with a crushing head, and the crushing head comprises a crushing hammer rod detachably connected with the tail end of the resonance beam and a crushing hammer head connected with the crushing hammer rod; the resonance beam is provided with a front shaft fulcrum and a rear shaft fulcrum, the rear shaft fulcrum is fixedly connected to the damping tire, and the damping tire is fixedly connected to the resonance beam; the counterweight device is arranged on a front shaft fulcrum of the resonance beam through a connecting part, the connecting part comprises a connecting tray, a vibration damping rubber pad, a lifting lug and a connecting shaft block, the vibration damping rubber pad is arranged at the bottom of the counterweight device, the connecting tray is arranged at the bottom of the vibration damping rubber pad, the lifting lug is arranged at the bottom of the connecting tray, one end of the connecting shaft block is connected with the lifting lug, and the other end of the connecting shaft block is fixedly connected with the front shaft fulcrum of the resonance beam; the right side of counter weight device is provided with the counter weight support arm, and the right-hand member of counter weight support arm passes through the counter weight bearing to be connected with the resonance crossbeam, lift cylinder's one end and counter weight device are connected, lift cylinder's the other end and connected with the frame, the excitation case passes through slewing mechanism and is connected with the counter weight support arm, and slewing mechanism includes transfer line, bearing, linear connection pole's one end and excitation motor are connected, and the middle part of linear connection pole passes through the bearing to be connected on the rear axle fulcrum of resonance crossbeam, linear connection pole's the other end and transfer line swing joint, transfer line and counter weight support arm swing joint.

Preferably, the crushing head is detachably connected to the end of the resonance beam, and the surface of the crushing head is provided with a circular bulge.

The utility model has the advantages that:

the utility model discloses a screw has been beaten on the counter weight device side, and the counter weight of adoption is the square weight that the side punched, and the average distribution of proof mass that can be fine keeps the balance of resonance in-process counter weight quality. Meanwhile, the counterweight mode of accumulating a plurality of counterweight weights is more convenient for weight adjustment, and when the counterweight quality requirement needs to be changed according to the field situation, the structure can be used for conveniently and flexibly matching the weight. And the crushing hammer head with the circular bulge can effectively reduce the contact area, thereby increasing the contact stress in the vibration crushing process and having better crushing effect.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the resonance beam of the present invention;

FIG. 3 is a front view of the counterweight device of the present invention;

fig. 4 is a side view of the counterweight device of the present invention.

In the figure, 1, a resonant beam; 2. an excitation box; 3. a crushing head; 4. a frame; 5. a counterweight device; 6. a counterweight support arm; 7. a counterweight bearing; 8. a lift cylinder; 9. an excitation motor; 10. a breaking hammer rod; 11. crushing a hammer head; 12. a front axle fulcrum; 13. a rear axle fulcrum; 14. a shock absorbing tire; 15. connecting the tray; 16. a vibration damping rubber pad; 17. lifting lugs; 18. a coupling block; 19. a transmission rod; 20. a bearing; 21. a linear connecting rod; 22. a container closure; 23. a weight box; 24. counterweight weights; 25. a screw; 26. and a screw hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings, and the exemplary embodiments and descriptions are only used to explain the present invention, and are not used as limitations of the present invention.

As shown in fig. 1-4, the resonance crushing mechanism for the cement concrete pavement crusher comprises a resonance beam 1, an excitation box 2, an excitation motor 9, a crushing hammer rod 10, a crushing hammer head 11, a frame 4, a damping tire 14, a counterweight device 5, a connecting tray 15, a damping rubber pad 16, a lifting lug 17, a coupling block 18, a counterweight support arm 6, a counterweight bearing 7, a transmission rod 19, a linear connecting rod 21, a bearing 20 and a lifting oil cylinder 8.

The starting end of the resonance beam 1 is connected with the excitation box 2, and the excitation box 2 is connected with the excitation motor 9; the tail end of the resonance beam 1 is provided with a crushing head 3, and the crushing head 3 comprises a crushing hammer rod 10 and a crushing hammer head 11; the vibration of the vibration excitation box 2 can drive the resonant beam 1 to vibrate at a high speed to generate flexible deformation, meanwhile, high-frequency vibration is transmitted to the crushing head 3 at one end of the resonant beam 1, and the crushing head 3 knocks the concrete pavement to complete the rubblization treatment of the concrete pavement. Because the surface of the crushing hammer head 11 is provided with the circular bulge, the contact stress is greatly improved, and the crushing effect can be effectively improved. The front part of the resonant beam 1 is provided with a front shaft fulcrum 12, the rear part is provided with a rear shaft fulcrum 13, the front shaft fulcrum 12 is fixedly connected to the middle part of the damping tire 14, and the damping tire 14 can eliminate or reduce the influence of vibration on the whole crusher device in the working process of the crusher. The front end of a linear connecting rod 21 is connected with the excitation box 2, the middle part of the linear connecting rod 21 is installed on a front shaft pivot 12 through a bearing 20, the rear end of the linear connecting rod 21 is rotatably connected with the front end of a transmission rod 19, the rear end of the transmission rod 19 is rotatably connected with the front part of a counterweight support arm 6, the front end of the counterweight support arm 6 is provided with a counterweight bearing 7, the shaft of the counterweight bearing 7 is fixedly connected onto the resonance beam 1, the rear end of the counterweight support arm 6 is fixedly connected with a counterweight device 5, the counterweight device 5 is arranged above the resonance beam 1 and used for limiting the vibration amplitude of the resonance beam 1, and the counterweight device 5 provides a certain downward pressure for the resonance beam, so that the flexible vibration of the resonance beam 1 is ensured.

The counterweight device 5 is connected with one end of the lifting oil cylinder 8, the other end of the lifting oil cylinder 8 is fixedly connected with the frame 4, and when the position of the counterweight device 5 needs to be adjusted, the lifting oil cylinder 8 drives the counterweight device 5 to rotate around the shaft of the counterweight bearing 7 by a certain angle through self lifting, so that the crushing head 3 is driven to lift. The bottom of the counterweight device 5 is provided with a vibration reduction rubber mat 16, the bottom of the vibration reduction rubber mat 16 is provided with a connecting tray 15, and the vibration reduction rubber mat 16 can adsorb the vibration of the connecting tray 15 and prevent the vibration from being transmitted to the crusher equipment; the bottom of the connecting tray 15 is provided with a lifting lug 17, the lifting lug 17 is connected with the upper end of a coupling block 18 by a bolt, and the lower end of the coupling block 18 is fixed at the rear shaft support point 13 of the resonant beam 1 by a bolt.

Screw holes 26 are drilled on two sides of the counterweight device 5, the size and the position of the screw holes are matched with those of two sides of the counterweight device 24, when the counterweight device is used, after a certain number of weights are assembled according to specific requirements, the counterweight device container cover plate 22 and the counterweight device 5 are fastened by using screws 25, and the counterweight device 24 on the uppermost layer is fixed by using the screws 25 and the screw holes 26 on two side edges of the counterweight device, so that vertical displacement is generated when the counterweight device 24 vibrates, and the mass balance of the counterweight device 5 is ensured.

The utility model discloses a working process:

starting the excitation box 2, driving the resonance beam 1 to vibrate at a high speed through the vibration of the excitation box 2 to generate flexible deformation, simultaneously transmitting high-frequency vibration to the crushing head 3 at the other end of the resonance beam 1, and knocking the concrete pavement by the crushing head 3 to finish the rubble chemical treatment of the concrete pavement. When the position of the counterweight device 5 needs to be adjusted, the lifting oil cylinder 8 is started, and the adjustment of the node of the resonant beam 1 is realized by extending or shortening the lifting oil cylinder 8. When the weight of the counterweight device 5 needs to be adjusted, the number of the weights in the counterweight box 23 is increased or decreased to achieve the effect of changing the mass.

The utility model discloses a have circular bellied broken tup, can show and reduce area of contact to contact stress among the increase vibration crushing process consequently has better crushing effect, can effectively improve the efficiency of construction. The weight that the counter weight device used is the square weight that both sides were beaten the screw, the balance of assurance quality that can be better to adopt the counter weight mode that adds the weight one by one, can conveniently adjust the counter weight in a flexible way.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.

Claims (3)

1. The utility model provides a cement concrete road surface breaker is with broken mechanism of resonance which characterized in that: comprises a resonance beam (1), an excitation box (2), a crushing head (3), a frame (4), a counterweight device (5), a counterweight support arm (6), a counterweight bearing (7) and a lifting oil cylinder (8);

counter weight device (5) include weight box (23), container lid, counter weight (24), screw (25), weight box (23) and counter weight (24) all have been beaten screw (26) in the side, screw (26) position corresponds each other, it is fixed through screw (25) between weight box (23) and the counter weight.

2. The resonant crushing mechanism for the cement concrete pavement crusher as claimed in claim 1, wherein: the top end of the resonance beam (1) is connected with the excitation box (2), the excitation box (2) is connected with the excitation motor (9), the tail end of the resonance beam (1) is connected with the crushing head (3), and the crushing head (3) comprises a crushing hammer rod (10) detachably connected with the tail end of the resonance beam (1) and a crushing hammer head (11) connected with the crushing hammer rod (10); the vibration damping device is characterized in that a front shaft fulcrum (12) and a rear shaft fulcrum (13) are arranged on the resonance beam (1), the rear shaft fulcrum (13) is fixedly connected in a vibration damping tire (14), and the vibration damping tire (14) is fixedly connected on the resonance beam (1); the counterweight device (5) is mounted on a front shaft fulcrum (12) of the resonance beam (1) through a connecting part, the connecting part comprises a connecting tray (15), a vibration reduction rubber mat (16), a lifting lug (17) and a coupling block (18), the vibration reduction rubber mat (16) is arranged at the bottom of the counterweight device (5), the connecting tray (15) is arranged at the bottom of the vibration reduction rubber mat (16), the lifting lug (17) is arranged at the bottom of the connecting tray (15), one end of the coupling block (18) is connected with the lifting lug (17), and the other end of the coupling block is fixedly connected with the front shaft fulcrum (12) of the resonance beam (1); the right side of counter weight device (5) is provided with counter weight support arm (6), and the right-hand member of counter weight support arm (6) passes through counter weight bearing (7) to be connected with resonance crossbeam (1), the one end and the counter weight device (5) of lift cylinder (8) are connected, and the other end and frame (4) of lift cylinder (8) are connected, excitation case (2) are connected with counter weight support arm (6) through slewing mechanism, and slewing mechanism includes transfer line (19), bearing (20), linear connection pole (21), the one end and the excitation motor (9) of linear connection pole (21) are connected, and the middle part of linear connection pole (21) is passed through bearing (20) and is connected on rear axle fulcrum (13) of resonance crossbeam (1), the other end and transfer line (19) swing joint of linear connection pole (21), transfer line (19) and counter weight support arm (6) swing joint.

3. The resonant crushing mechanism for the cement concrete pavement crusher as claimed in claim 2, wherein: the crushing head (3) is detachably connected to the tail end of the resonant beam (1), and the surface of the crushing head (11) is provided with a circular bulge.

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