DZP series frequency conversion electric drive vibratory pile hammer

DZP series frequency conversion vibrating pile hammer is a new product with high performance, easy operation and in line with national conditions independently developed by Shanghai Zhenzhong Construction Machinery Technology Co., Ltd.

Product Consultation

Product Performance

DZP series frequency conversion vibrating pile hammer is a new product independently developed by Shanghai Zhenzhong Construction Machinery Technology Co., Ltd. with high performance, easy operation and national conditions. Compared with traditional vibratory pile hammers, DZP series frequency conversion vibratory pile hammers show obvious advantages, mainly including:

◆Low starting energy consumption

Use frequency converter to start with variable frequency to reduce starting energy consumption. The power of the configured power supply is generally within 2 times of the power of the vibrating pile hammer motor, which meets the requirements of energy saving and emission reduction

◆Adjust different vibration frequencies

Frequency conversion by frequency converter can adjust different vibration frequencies to meet the requirements of selecting different frequencies for different geological conditions to achieve construction frequency

◆Fast and smooth shutdown

Through the energy conversion system when shutting down, the rotational kinetic energy is quickly converted into electric energy, and then the electric energy is converted into heat energy and released, so that the shutdown process is fast and stable, avoiding the generation of resonance, and preventing the strong noise generated by resonance and the impact on the vibrating pile Occurrence of damage to the hammer itself and related equipment

◆High efficiency, energy saving, safety and environmental protection

The configured motor is a vibration-resistant frequency conversion motor with independent intellectual property rights, and the motor has a longer service life. In short, compared with the traditional vibrating pile hammer, this machine not only has a scientific and reasonable overall structure, but also obviously has the characteristics of energy saving, which is a major breakthrough in the existing vibrating pile hammer technology.

The principle of frequency conversion vibrating pile hammer without resonance shutdown

The principle of non-resonance shutdown of frequency conversion vibrating pile hammer is: when starting, the output voltage of the frequency converter drives the motor, and the vibrating pile hammer starts to rotate. As the frequency of the frequency converter increases, the speed of the vibrating pile hammer becomes faster and faster. The positive and negative terminals of the busbar are connected to the braking unit, and the inverter does not act because the voltage at the positive and negative terminals of the DC busbar does not reach the set voltage for triggering the braking unit. When stopping or decelerating, at the moment when the inverter frequency decreases, the synchronous speed of the motor will drop accordingly, and due to the mechanical inertia, the arrow is the current direction of the motor when the motor is generating power) The rotor speed of the motor does not change, when the synchronous speed When it is less than the rotor speed, the phase of the rotor current changes almost 180°, and the motor changes from a motoring state to a generating state. At the same time, the torque on the motor shaft becomes the braking torque, so that the speed of the motor drops rapidly, and the motor is in a regenerative braking state. The electric energy regenerated by the motor is rectified by the diodes in the inverter and then fed back to the DC bus circuit. Since the electric energy of the DC circuit cannot be fed back to the power grid through the rectifier bridge, it only depends on the absorption of the inverter itself. Although other parts can consume part of the electric energy, the capacitor still has a short-term charge accumulation, forming a "pump voltage" to make the DC bus voltage raised. At this time, the braking unit starts to work, conducts the regenerative electric energy generated by the load-driven motor and consumes it on the braking resistor through heat generation, so as to improve the braking capacity of the inverter and ensure that the motor can stop quickly within the set time . The rapid stop of the motor can effectively avoid the resonance of the mechanical end of the vibrating pile hammer, and achieve the function of protecting the frequency converter, motor and related mechanical parts and mechanical equipment.

Product Parameters

Project		Unit	DZP45	DZP60	DZP90	DZP90KS	DZP120	DZP120KS	DZP150
Motor power		kW	45	60	90	45*2	120	60*2	150
Static eccentric moment		kg*m	25	37	47	52	71	71	77	97
Maximum vibration frequency		r/min	1150	1100	1050	1000	1000	1000	1100	970
Exciting force		t	37	50	58	58	80	80	104	102
No-load amplitude		mm	8.9	9.9	10.3	9.7	13.6	8.3	11.4	14
No-load acceleration		g	13.1	13.4	12.8	10.8	15.4	9.3	15.4	14.8
Maximum allowable pile pulling force		t	20	20	25	25	40	40	40
Vibrating mass	Without clamp	kg	2800	3744	4560	5370	5195	8610	6750	6900
Total mass	Without clamp	kg	3820	5109	6160	7190	7162	11780	8650	8800
Long		mm	1190	1370	1523	2390	1720	3120	1975
Width		mm	1100	1250	1250	1420	1310	1690	1425
High		mm	2340	2395	2552	2060	2640	2540	3061

Project		Unit	DZP150KS	DZP180		DZP180KS	DZP200	DZP240		DZP300
Motor power		kW	75*2	180		90*2	200	240		300
Static eccentric moment		kg*m	150	150	200	150	250	220	300	300	400
Maximum vibration frequency		r/min	760	860	750	860	680	810	660	760	620
Exciting force		t	97	124	126	124	130	161	146	203	172
No-load amplitude		mm	15.5	14	18	10.7	21.2	15.7	21	18.1	23.7
No-load acceleration		g	10	11.6	11.3	8.9	11	11.5	10.2	11.7	10.2
Maximum allowable pile pulling force		t	40	60		60	60	90		90
Vibrating mass	Without clamp	kg	9700	10700	11100	13990	11800	14000	14300	16600	16900
Total mass	Without clamp	kg	12870	13900	14300	18250	15000	19300	19600	23300	23600
Long		mm	3140	2450		3550	2450	2500		2500
Width		mm	1690	1500		2000	1500	1830		1890
High		mm	2550	3440		2980	3440	3720		4350

Project		Unit	DZP360KS	DZP400			DZP500		DZP600
Motor power		kW	180*2	400			500		600
Static eccentric moment		kg*m	350	300	400	500	480	580	580	680
Maximum vibration frequency		r/min	680	820	700	580	750	580	680	580
Exciting force		t	180	226	219	188	302	218	300	256
No-load amplitude		mm	24.1	22	16.8	16.8	17	20.5	20.1	21.2
No-load acceleration		g	12.4	12.4	12.6	12.6	10.7	7.7	10.5	8
Maximum allowable pile pulling force		t	72	90		120	120		120	180
Vibrating mass	Without clamp	kg	14500	18200	17900	26400	28100	28300	28500	32000
Total mass	Without clamp	kg	19000	24900	24600	33900	35700	35900	36200	39800
Long		mm	2970	2250		2580	2580		2600	2780
Width		mm	1790	1940		2240	2240		2240	2260
High		mm	2810	4450		5185	5185		5200	5800

Application Scope

Vibration-sinking prefabricated engineering piles (steel pipe piles, concrete piles) and cast-in-place piles can also be used for sinking and pulling temporary support (steel pipe, steel plate) piles, as well as foundation improvement and other engineering construction.

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