TWI660114B - Engine for increasing hydraulic power of tool car in parallel - Google Patents

Abstract

The invention provides a parallel-connected engine for increasing hydraulic power of a tool car, including: a main oil circuit system including: a first pump, a second pump, an oil tank and a distribution valve, the first pump And the second pump extracts oil from the fuel tank and sends it to the distribution valve; and an external oil system, which is connected to the main oil system in parallel, including: an external fuel tank, an external fuel tank Pump, an external distribution valve and a tee joint, the external pump extracts oil from the external tank and sends it to the external distribute valve, and communicates the distribution valve and the external distribution valve through the tee joint In this way, the increase of hydraulic power can be achieved, and there will be no overload situation to extend the service life of the parts, and the increase of the use time will improve the work efficiency.

Description

Engine for increasing hydraulic power of tool car in parallel

The invention relates to a tool vehicle equipment, in particular to an engine applied to a tool vehicle and a hydraulic tool head to increase hydraulic power.

Press, general tool trucks (such as excavators, pile drivers, etc.) can be replaced with pendants to perform different construction operations. For example, when the tool pendant is a bucket, it can be excavated. The pendant is a pile driver capable of pile driving, which enables the tool truck to perform different construction operations.

However, the tool cart usually only uses a power piece to provide hydraulic power to the tool cart and the accessory. When the accessory of the tool cart is a bucket, because the excavation operation does not require high-frequency operation, the power The hydraulic power provided by the tool is sufficient to distribute the tool car and the attachment, but if the tool car's attachment is a pile driver, the pile driver needs the pile driver to vibrate at a high frequency, and the power member provides hydraulic power to the pile driver. The machine and the tool cart often have a load overload phenomenon, and it often takes a period of work to allow the power piece to rest and cool to reduce work efficiency.

In addition, the power part provides hydraulic power to the pile driver and the tool cart, which often cause overloading, so that each component will generate higher heat due to rapid operation, making the oil temperature more difficult to cool down, and making the life of the parts Reduction, etc.

In view of the fact that the tool vehicle has only a power mechanism to provide hydraulic power to the tool vehicle and the accessory, the power mechanism often has a load overload phenomenon when operating at high frequencies, and it often takes a period of time to operate the vehicle. The rest of the power mechanism will reduce the work efficiency, and the components will generate higher heat due to rapid operation, which will increase the oil temperature, make it difficult to cool down, and reduce the life of the parts. After many parties explored and made sample tests, and revised and improved several times, this creation was launched.

The invention provides an engine for increasing the hydraulic power of a tool car in parallel, comprising: a main oil circuit system, an external oil circuit system, a control system and a monitoring system, and applied to a tool vehicle and a hydraulic tool Head, the main oil circuit system is installed on the tool car, the main oil circuit system includes: an engine, a first pump, a second pump, a fuel tank, a distribution valve, a filter and a heat sink The engine provides power to the first pump and the second pump to make the first pump and the second pump operate, and the oil tank provides oil storage, the first pump and the second pump. When the pump is running, the oil in the fuel tank is pumped and transported. The distribution valve is provided with two right power walking holes, two stick power holes, two external power holes, two left power walking holes, and two The arm power connection hole, two forearm power connection holes and two rotary power connection holes, the distribution valve is connected to the oil tank, and the external power hole is connected to the hydraulic tool head, the first pump is connected to the second Pump pumps oil from the oil tank and sends it to the distribution valve. Power walking connection hole, the two stick power connection hole, the two external power holes, the two left power walking connection holes, the two forearm power connection holes, the two forearm power connection holes, and the two rotary power connection control In use, the oil in the distribution valve is returned to the oil tank, and the filter is connected between the oil tank and the distribution valve. The filter provides filtering of impurities in the oil that the distribution valve sends back to the oil tank, and the heat sink is connected. Between the oil tank and the distribution valve, and the heat sink is connected in series with the filter, the heat sink provides the oil returned by the distribution valve to the fuel tank to reduce the temperature; the external oil system and the main oil system The external oil circuit system includes: an external engine, an external pump, an external fuel tank, an external distribution valve, a shunt tee connector, a bus tee connector, an external filter, an external heat sink, and A first one-way check valve and a second one-way check valve. The external engine is provided with a water tank and an oil tank. The water tank provides water storage, the oil tank provides oil storage, and the external engine provides Motivate the plug-in help To make the external pump operate, the external fuel tank provides oil storage, the external pump will extract and transport the oil in the external fuel tank when the external pump is in operation, and the external pump will perform oil extraction on the external fuel tank It is delivered to the external distribution valve, and oil can be delivered to the hydraulic tool head through the external distribution valve. The split tee joint provides simultaneous flow of oil from the external oil tank to the external pump and the oil tank. The manifold tee joint provides the oil delivered by the external distribution valve and the external power hole to the hydraulic tool head, and the external filter is connected to the external oil tank, the external distribution valve and the hydraulic tool head. In the meantime, the plug-in filter provides filtering of impurities in the oil delivered by the plug-in distribution valve and the hydraulic tool head to the plug-in fuel tank, and the plug-in heat sink is connected to the plug-in fuel tank, the plug-in distribution valve, and the hydraulic tool head. And the external heat sink is connected in series with the external filter, the external heat sink provides the external distribution valve or the hydraulic tool head to return the oil temperature to the external oil tank, and the first one-way check A valve is provided between the external power hole and the tee joint. The first one-way check valve provides the external power hole and the oil delivered by the external distribution valve can only be input to the hydraulic tool head. The second one-way check valve is provided at the output position of the hydraulic tool head. The second one-way check valve is connected in series with the external filter and the external heat sink. The second one-way check valve provides The oil delivered by the hydraulic tool head can only be input to the external oil tank; the control system is set in cooperation with the external oil circuit system and includes: a power switch, a speed control unit and an oil quantity control unit. The power switch provides The external engine starts and shuts down. The rotational speed control unit provides the external engine operating speed control. The oil quantity control unit controls the oil delivery volume in the external distribution valve and controls the oil delivery to the manifold tee joint or back. The external oil tank; the monitoring system is arranged in cooperation with the external oil circuit system, and includes: a water level sensor, a water temperature sensor, and an oil pressure sensor. The water level sensor provides monitoring of the water level in the water tank. Is low, the temperature sensing element provided to monitor water temperature in the tank, the oil pressure sensing member provided in the oil tank is sufficient to monitor the machine.

The main purpose of the parallel-connected engine for increasing the hydraulic power of a tool vehicle is that when the hydraulic tool head is actuated, the oil quantity control unit controls an external distribution valve to allow oil to be delivered to the hydraulic tool head. The oil and the oil delivered by an external power hole will be communicated to the hydraulic tool head through the tee joint, and the oil pressure power will be increased, so that the engine will not be overloaded and prolong the service life of the parts. And the increase in use time increases work efficiency.

Referring to the first, second, and third drawings, the present invention provides a parallel-connected engine for increasing hydraulic power of a tool vehicle, including: a main oil circuit system 10, an external oil circuit system 20, and a control system 30. And a monitoring system 40, which is applied to a tool cart 50 and a hydraulic tool head 60, such as a crusher, a pile driver, a gripper, and the like.

The main oil circuit system 10 is installed on the tool car 50. The main oil system 10 includes: an engine 11, a first pump 12, a second pump 13, an oil tank 14, a distribution valve 15, A filter 16 and a heat sink 17.

The engine 11 provides power to the first and second pumps 12 and 13 to make the first and second pumps 12 and 13 operate.

The fuel tank 14 is connected to the first pump 12 and the second pump 13. The fuel tank 14 provides oil storage. When the first pump 12 and the second pump 13 are in operation, oil is stored in the fuel tank 14. The liquid is pumped and transported.

The distribution valve 15 is provided with two right power walking connection holes 151, two stick power connection holes 152, two external power holes 153, two left power walking connection holes 154, two boom power connection holes 155, and two forearm power connections. Hole 156 and two rotary power connection holes 157, the distribution valve 15 is connected to the oil tank 14, and the external power hole 153 is connected to the hydraulic tool head 60, the first pump 12 and the second pump 13 After the oil is extracted from the oil tank 14 and sent to the distribution valve 15 respectively, the two right power travel connection holes 151, the two stick power connection holes 152, the two external power supply holes 153, and the two left power travel connections The hole 154, the two forearm power connection holes 155, the two forearm power connection holes 156, and the two rotary power connection holes 157 are controlled for use. The oil in the distribution valve 15 will be sent back to the oil tank 14 again.

The filter element 16 is connected between the oil tank 14 and the distribution valve 15. The filter element 16 provides filtering of impurities in the oil liquid that the distribution valve 15 sends back to the oil tank 14.

The heat dissipating member 17 is connected between the oil tank 14 and the distribution valve 15, and the heat dissipating member 17 is connected in series with the filter member 16. The heat dissipating member 17 provides the oil that the distribution valve 15 sends back to the oil tank 14 to reduce the temperature. The oil delivered by the distribution valve 15 back to the oil tank 14 is filtered by the filter 16, and then the oil temperature is reduced by the heat sink 17 and sent back to the oil tank 14.

The external oil system 20 is connected in parallel with the main oil system 10, and the external oil system 20 includes: an external engine 21, an external pump 22, an external fuel tank 23, an external distribution valve 24, and a split tee Joint 25, a three-way joint 251, an external filter 26, an external heat sink 27, a first one-way check valve 28, a second one-way check valve 281, and a third one-way check valve 282 .

The plug-in engine 21 is provided with a water tank 211 and an oil tank 212. The water tank 211 provides water storage and the oil tank 212 provides storage of oil.

The plug-in engine 21 provides power to the plug-in pump 22 to make the plug-in pump 22 run.

The external oil tank 23 provides oil storage. When the external pump 22 is running, the internal oil of the external oil tank 23 is extracted and transported.

The plug-in pump 22 extracts oil from the plug-in oil tank 23 and sends it to the plug-in distribution valve 24. The plug-in distribution valve 24 can send oil to the hydraulic tool head 60.

The shunt tee joint 25 conducts oil from the external tank 23 to the external pump 22 and the tank 14 at the same time.

The bus tee joint 251 provides the oil transmitted from the external distribution valve 24 and the external power hole 153 to the hydraulic tool head 60.

The plug-in filter 26 is connected between the plug-in fuel tank 23, the plug-in distribution valve 24, and the hydraulic tool head 60. The plug-in filter 26 provides the plug-in distribution valve 24 and the hydraulic tool head 60 to be returned to the plug-in fuel tank. The impurities in 23 oil are filtered.

The external heat sink 27 is connected between the external oil tank 23, the external distribution valve 24 and the hydraulic tool head 60, and the external heat sink 27 is connected in series with the external filter 26. The external heat sink 27 provides the external plug The temperature of the oil delivered by the distribution valve 24 or the hydraulic tool head 60 back to the external oil tank 23 decreases. The oil delivered by the external distribution valve 24 and the hydraulic tool head 60 back to the external oil tank 23 will first pass through the external filter. 26 filters impurities, passes the external heat sink 27 to reduce the temperature of the oil, and then conveys them to the external oil tank 23.

The first one-way check valve 28 is provided between the external power hole 153 and the bus tee joint 251. The first one-way check valve 28 provides the external power hole 153 and the external distribution valve 24 for delivery. The oil out can only go to the hydraulic tool head 60.

The second one-way check valve 281 is provided at the output position of the hydraulic tool head 60. The second one-way check valve 281 is connected in series with the external filter 26 and the external heat sink 27. The second one-way check The check valve 281 provides the oil delivered by the hydraulic tool head 60 to the external oil tank 23 only.

The third one-way check valve 282 is connected to the external distribution valve 24, and is connected in series with the external filter 26 and the external heat sink 27. The third one-way check valve 282 provides the external distribution valve 24 for transportation. The oil of the external oil tank 23 can only be input to the external oil tank 23.

The control system 30 is provided in cooperation with the external oil circuit system 20 and includes: a power switch 31, a speed control unit 32, and an oil quantity control unit 33.

The power switch 31 allows the external engine 21 to be turned on and off.

The rotation speed control unit 32 provides the speed control of the external engine 21.

The oil amount control unit 33 controls the oil delivery amount in the external distribution valve 24, and controls the oil delivery to the manifold tee joint 251 or back to the external oil tank 23.

The monitoring system 40 is provided in cooperation with the external oil circuit system 20 and includes: an oil temperature sensor 41, a water level sensor 42, a water temperature sensor 43 and an oil pressure sensor 44.

The oil temperature sensing member 41 provides monitoring of the oil temperature value in the external oil tank 23.

The water level sensor 42 monitors the water level in the water tank 211.

The water temperature sensing member 43 provides water temperature monitoring in the water tank 211.

The oil pressure sensing member 44 monitors whether the oil in the oil tank 212 is sufficient.

In use, as shown in the first and second figures, the engine 11 of the main oil system 10 and the power switch 31 of the control system 30 are turned on to make the engine 11 and the external engine 21 of the external oil system 20 run. The engine 11 provides power to the first pump 12 and the second pump 13, and the plug-in engine 21 provides power to the plug-in pump 22, so that the first pump 12 and the second pump 13 oil the fuel tank 14. Extracted and delivered to the two right power walking connection holes 151, two stick power connection holes 152, two external power supply holes 153, two left power walking connection holes 154, two boom power connection holes 155, and two forearms of the distribution valve 15. The power connection hole 156 and the two-turn power connection hole 527 make the tool car 50 run, and the external pump 22 also extracts the oil from the external oil tank 23 and sends it to the external distribution valve 24, where the external oil tank The oil in 23 is transferred into the fuel tank 14 or into the external distribution valve 24 through the split tee joint 25.

When the tool cart 50 is running, oil will be delivered to the filter 16 by the distribution valve 15. The filter 16 filters impurities in the oil and then reduces the oil temperature to the heat sink 17 and sends it back to the oil tank 14. It is then pumped by the first pump 12 and the first pump 13 and then transported to the distribution valve 15. The distribution valve 15 transports oil through the filter 16 to filter impurities, and the heat dissipation member 17 dissipates heat. The oil temperature is returned to the tank 14.

When the hydraulic tool head 60 is actuated, the oil quantity control unit 33 controls the external distribution valve 24 to allow oil to be transmitted to the hydraulic tool head 60. The oil transmitted by the external distribution valve 24 and the external power hole 153 are transmitted. The oil will be connected through the tee joint 351, and at the same time, it will provide hydraulic power to the hydraulic tool head 60 to increase the hydraulic power, so that the engine 11 will not be overloaded and prolong the service life of the components. And the use time increases to improve the work efficiency. The hydraulic tool head 60 then sends out the oil to the external filter 26 and the external heat sink 27. The external oil is filtered by the external filter 26 before passing the impurities through the external filter. The external heat sink 27 reduces the temperature of the oil and then sends it to the external oil tank 23, and then is drawn by the external pump 22, and is partly delivered to the oil tank 14 through the shunt tee joint 35, and the other After being delivered to the external distribution valve 24, the confluence tee joint 351 communicates with the external distribution valve 24 and the external power hole 153 to deliver oil, and then to the hydraulic tool head 60 again. The hydraulic tool head 60 again sends out the oil to the The plug-in filter 26 and the plug-in heat sink 27 are used to filter the impurities in the oil by the plug-in filter 26, and then the oil temperature is reduced through the plug-in heat sink 27 before being sent to the plug-in tank 23.

When the hydraulic tool head 60 is inactive, the oil quantity control unit 33 controls the external distribution valve 24 so that oil is delivered to the external filter 26 and the external heat sink 27, and the oil is filtered by the external filter 26 first. After the impurities in the oil liquid, the temperature of the oil liquid is reduced through the external heat sink 27 and then sent to the external oil tank 23.

From the structure of the above specific embodiment, the following benefits can be obtained:

1. When the hydraulic tool head 60 is actuated, the oil quantity control unit 33 controls the external distribution valve 24 to send oil to the hydraulic tool head 60. The oil transmitted by the external distribution valve 24 and an external power hole 153 deliver oil After the fluid is connected through the tee joint 351, it is synchronously delivered to the hydraulic tool head 60, which increases the hydraulic power, so that the engine 11 will not be overloaded and prolonged the service life of the parts, and the use time will increase the work. to raise efficiency.

10‧‧‧Main oil circuit system

11‧‧‧ Engine

12‧‧‧ the first pump

13‧‧‧Second Pump

14‧‧‧ fuel tank

15‧‧‧Distribution valve

151‧‧‧Right power walking socket

152‧‧‧ Stick Power Hole

153‧‧‧External power hole

154‧‧‧Left power walking socket

155‧‧‧Boom for power connection

156‧‧‧Power arm socket

157‧‧‧Slewing power socket

16‧‧‧Filter

17‧‧‧ heat sink

20‧‧‧ External Oil System

21‧‧‧ External Engine

211‧‧‧Water tank

212‧‧‧oil tank

22‧‧‧ Plug-in pump

23‧‧‧External Fuel Tank

24‧‧‧External distribution valve

25‧‧‧ split tee joint

251‧‧‧bus tee joint

26‧‧‧External filter

27‧‧‧External heat sink

28‧‧‧The first one-way check valve

281‧‧‧Second check valve

282‧‧‧The third check valve

30‧‧‧Control System

31‧‧‧Power Switch

32‧‧‧speed control unit

33‧‧‧Fuel Control Unit

40‧‧‧ monitoring system

41‧‧‧oil temperature sensor

42‧‧‧Water-level sensor

43‧‧‧Water temperature sensor

44‧‧‧oil pressure sensor

50‧‧‧tool cart

60‧‧‧Hydraulic power head

The first figure is a combined block diagram of the main oil circuit system, the external oil circuit system, the tool cart and the hydraulic tool head of the present invention. The second figure is a combined block diagram of a control system and an external oil circuit system of the present invention. The third figure is a combined block diagram of the monitoring system and the external oil circuit system of the present invention.

Claims (6)

An engine for increasing the hydraulic power of a tool car in parallel includes a main oil circuit system, an external oil circuit system, a control system and a monitoring system, and is applied to a tool truck and a hydraulic tool head: The main oil circuit system is installed on the tool car, and the main oil circuit system includes: an engine; a first pump; a second pump, the engine provides power to the first pump and the second pump To make the first pump and the second pump operate; an oil tank, which provides oil storage, the first pump and the second pump will extract and transport the oil in the tank when the pump is in operation ; A distribution valve, the distribution valve is provided with two right power walking connection holes, two bucket power connection holes, two external power holes, two left power walking connections, two boom power connections, two forearm power connections And two rotary power connection holes, the distribution valve is connected to the oil tank, and the external power hole is connected to the hydraulic tool head, and the first pump and the second pump perform oil extraction and transportation on the oil tank To the distribution valve, the two right power walking joints and the two sticks move The connection hole, the two external power holes, the two left power walking connection holes, the two forearm power connection holes, the two forearm power connection holes, and the two rotary power connection holes are controlled for use, and the oil in the distribution valve is re-transported A filter, the filter is connected between the fuel tank and the distribution valve, and the filter provides filtering of impurities in the oil that the distribution valve sends back to the tank; and a heat sink, the heat sink is connected to Between the oil tank and the distribution valve, and the heat sink is connected in series with the filter, the heat sink provides the oil returned by the distribution valve to the fuel tank to reduce the temperature; the external oil system is connected in parallel with the main oil system The external oil circuit system includes: an external engine, the external engine is provided with a water tank and an oil tank, the water tank provides water storage and the oil tank provides oil storage; an external pump, the external engine provides Power the plug-in pump to make the plug-in pump run; an plug-in fuel tank, which provides oil storage, and the plug-in pump will extract and transport the oil in the plug-in tank when the plug-in pump is in operation; After the external pump pumps out the oil from the external oil tank and sends it to the external distribution valve, the external liquid can be delivered to the hydraulic tool head through the external distribution valve; a split tee joint, the split three The through connector provides the oil from the external oil tank to the external pump and the oil tank at the same time; a bus tee connector, which provides the oil from the external distribution valve and the external power hole to communicate with The hydraulic tool head; an external filter, the external filter is connected between the external oil tank, the external distribution valve and the hydraulic tool head, and the external filter provides the external distribution valve and the hydraulic tool head for transportation Filter the impurities in the oil returning to the external tank; an external radiator, which is connected between the external tank, the external distribution valve and the hydraulic tool head, and the external radiator and the external filter Then, the external cooling member provides a temperature drop of the oil delivered by the external distribution valve or the hydraulic tool head to the external oil tank; a first one-way check valve, the first one-way check valve is provided outside the one Between the connection power hole and the bus tee joint, the first one-way check valve provides the external power hole and the oil delivered by the external distribution valve can only be input to the hydraulic tool head; and a second A one-way check valve, the second one-way check valve is set at the output position of the hydraulic tool head, the second one-way check valve is connected in series with the external filter and the external heat sink, and the second single The oil delivered by the hydraulic tool head to the check valve can only be input to the external oil tank; the control system is set in cooperation with the external oil circuit system and includes: a power switch that provides the external engine to start and shut down A speed control unit, which provides the external engine operating speed control; and an oil volume control unit, which controls the oil delivery volume in the external distribution valve, and controls the oil delivery to the manifold The three-way joint or conveyed back to the external oil tank; the monitoring system is set in cooperation with the external oil circuit system and includes: a water level sensor, which provides monitoring of the water level in the water tank; a water temperature sensor The temperature sensing element provided to monitor water temperature in the tank; and an oil pressure sensing member, the oil pressure sensing member provided in the oil tank is sufficient to monitor the machine. As described in Item 1 of the scope of the patent application, the engine for increasing the hydraulic power of the tool car in parallel, the first pump respectively provides oil to the two right power walking sockets, the two stick power sockets, and the two External power holes, the second pump respectively provides oil to the two left power walking connection holes, the two forearm power connection holes, the two forearm power connection holes and the two rotary power connection holes. As described in item 1 of the scope of the patent application, the engine for increasing the hydraulic power of the tool car in parallel, wherein the oil returned by the distribution valve to the fuel tank will be filtered by the filter, and then the heat sink will reduce the oil temperature. And transported back to the tank. As described in item 1 of the scope of the patent application, the oil pressure power of the plug-in distribution valve and the hydraulic tool head returned to the plug-in oil tank will be filtered by the plug-in filter for impurities. After passing through the external heat sink to reduce the oil temperature, the oil is delivered to the external oil tank. As described in item 1 of the scope of the patent application, the engine for increasing the hydraulic power of the tool car in parallel, the plug-in oil circuit system further includes: a third one-way check valve, the third one-way check valve and the plug-in The distribution valve is connected and connected in series with the external filter and the external heat sink. The third one-way check valve provides the oil that the external distribution valve sends back to the external tank, which can only be input to the external tank. As described in item 1 of the scope of the patent application, the engine for increasing the hydraulic power of the tool car in parallel, the monitoring system further includes: an oil temperature sensing element, the oil temperature sensing element provides monitoring of the oil temperature value in the external tank.