CN211113847U

CN211113847U - Power system of small-sized wheel excavator

Info

Publication number: CN211113847U
Application number: CN201921448574.XU
Authority: CN
Inventors: 张弩; 王敏
Original assignee: World Heavy Industry China Co Ltd
Current assignee: World Heavy Industry China Co Ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-07-28
Anticipated expiration: 2029-09-02

Abstract

The utility model provides a driving system of small-size wheel excavator, include: the pin acoustic assembly is connected to the outlet position of the engine assembly; the air filter assembly is connected to the inlet position of the engine assembly; the water cooling assembly is connected to the radiator; the shock absorption pad groups are distributed at the bottom of the power system; the air pipe is used for connecting the pin acoustic device assembly and the engine assembly and connecting the air filter assembly and the engine assembly; the clutch slave cylinder is connected with the clutch; the utility model discloses a rubber damping, the effectual vibration of having alleviated the engine and producing adopts the mode of oil cooling and water-cooled second grade cooling simultaneously, makes the engine operating time obtain the extension, and empty filter assembly arranges at engine outside convenient to detach renew cartridge, and the clutch cylinder pressurizes when can trample the clutch to the people, reduces the use of manpower.

Description

Power system of small-sized wheel excavator

Technical Field

The utility model relates to the technical field of engines, especially, relate to driving system of small-size wheel excavator.

Background

Wheel excavation (wheel excavator for short) has high requirements on power core parts, a power system not only can meet the mechanical performance of the excavator, but also needs to be arranged reasonably, the reasonable layout reduces the space occupation and can radiate heat well, easily damaged and easily replaced parts need to be designed at positions convenient for disassembly and maintenance, the influence of vibration generated when the power system works normally on the whole machine needs to be considered, the control of noise generated by resonance is prevented, operators operate for a long time, drivers are easy to fatigue, in order to reduce the labor intensity of the drivers and ensure the driving safety, the full consideration is also made during the design of the excavator, the traditional internal oil cooling mode of the engine only cools the engine per se, the cooling of peripheral parts is realized through air cooling or natural cooling, and the temperature of the power system during working can not be reduced well, in order to ameliorate the above problems, the present application provides an improved power system for a wheel excavator.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an overcome above-mentioned problem or solve the driving system of the small-size wheel machine of digging of above-mentioned problem at least partially to solve that engine cooling mode is single, vibrations are great, the trachea is easily ageing and the clutch tramples hard problem.

In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:

the utility model provides a driving system of small-size wheel excavator, including transmission case, gearbox, clutch, engine assembly and the radiator of installing in proper order, still include:

the pin acoustic assembly is connected to the outlet position of the engine assembly;

the air filter assembly is connected to the inlet position of the engine assembly;

the water cooling assembly is connected to the radiator;

the shock absorption pad groups are distributed at the bottom of the power system;

the air pipe is used for connecting the pin acoustic device assembly and the engine assembly and connecting the air filter assembly and the engine assembly;

the clutch slave cylinder is connected with the clutch.

As the utility model discloses further scheme, engine assembly cooling method comprises oil cooling and water cooling, oil cooling's oil pipe says intercommunication bent axle, clutch and valve subassembly, water cooling's water pipeling intercommunication water cooling assembly, fuel nozzle and valve seat circle.

As a further aspect of the present invention, the oil conduit is disposed in the engine cylinder, one end of the oil conduit is connected to the oil tank, the other end of the oil conduit connects the oil pump to the engine cylinder, and the oil conduit passes through the crankshaft, the clutch and the valve assembly.

As a further aspect of the present invention, the water conduit is disposed on the cylinder, the water conduit communicates with the water inlet and the water outlet, and the water conduit passes through the water cooling assembly, the fuel nozzle and the valve seat ring.

As a further scheme of the utility model, be equipped with the water tank in the water-cooling assembly, the water pipeling sets up in water tank wind flow direction one side, and the downside is equipped with water inlet and delivery port respectively on the water tank, is equipped with the gap between water inlet and the water tank, and water tank and radiator set up side by side.

As a further proposal of the utility model, a thermostat is arranged on the water inlet and used for opening and closing the water cooling assembly.

As a further proposal of the utility model, the middle layer of the air pipe is woven cloth, and the inner and outer wrapping layers of the middle layer are ethylene propylene diene monomer.

As a further scheme of the utility model, the shock pad group comprises support, connecting bolt and rubber packing ring, and support and connecting bolt are with driving system and connected to the frame, and the rubber packing ring sets up the position at connecting bolt and metal contact.

As a further proposal of the utility model, the pin acoustic device assembly and the air filter assembly are both arranged outside the engine assembly.

The utility model provides a driving system of small-size round of digging machine, beneficial effect lies in: the power system of the small-sized wheel excavator is reasonable in arrangement, rubber vibration reduction is adopted at all connection positions, vibration generated by an engine is effectively relieved, a mode of oil cooling and water cooling secondary cooling is adopted, high temperature generated during working of the engine is effectively reduced, the operation time of the engine is prolonged, a pin sound device assembly and an air filter assembly are arranged outside the engine, the filter element is convenient to detach and replace, one set of clutch sub-pump additionally arranged on the clutch can pressurize when a person tramples the clutch, the use of manpower is reduced, and the labor intensity of operators is effectively relieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an overall structure front view provided by the embodiment of the present invention.

Fig. 2 is a left side view of the overall structure provided by the embodiment of the present invention.

Fig. 3 is a rear view of the overall structure provided by the embodiment of the present invention.

Fig. 4 is a top view of the overall structure provided by the embodiment of the present invention.

Fig. 5 is a front view of a water cooling assembly according to an embodiment of the present invention.

Fig. 6 is a right side view of a water cooling assembly according to an embodiment of the present invention.

Fig. 7 is a left side view of the water cooling assembly according to the embodiment of the present invention.

Fig. 8 is a side view of the shock pad set provided by the embodiment of the present invention.

Fig. 9 is a front view of a cushion pad set provided by an embodiment of the present invention.

Fig. 10 is a schematic view of the trachea structure provided by the embodiment of the present invention.

In the figure: 10. a transmission case; 20. a gearbox; 30. an engine assembly; 40. a pin horn assembly; 50. an air filter assembly; 60. water cooling assembly; 61. a heat sink; 62. a water inlet; 63. an overflow port; 64. a water outlet; 65. a thermostat; 66. a water tank; 70. a shock pad set; 71. a rubber gasket; 80. an air tube; 81. an intermediate layer; 82. a wrapping layer; 90. a clutch slave cylinder; 100. a clutch.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1-10, a power system of a small wheel excavator provided in an embodiment of the present invention includes a transmission case 10, a transmission case 20, a clutch 100, an engine assembly 30 and a heat sink 61 sequentially installed in sequence, the transmission case 10 is installed at the front end of the transmission case 20 for performing vertical transmission conversion on power output by the transmission case 20, and the transmission case 20 is installed between the clutch 100 and the transmission case 10 for performing deceleration conversion on high rotation speed output by the engine assembly 30; the clutch 100 is installed between the transmission case 20 and the engine assembly 30, and is used for performing clutch separation on the output power of the engine assembly 30 and controlling power output, the radiator 60 is installed at the tail of the engine assembly 30 and is used for dissipating heat of the engine assembly 30, the engine assembly 30 comprises main mechanisms and parts such as a crank link mechanism, a gas distribution mechanism, a fuel supply mechanism and a lubricating and cooling mechanism, all the mechanisms are mutually matched to complete the work cycle of the engine assembly 30 and realize energy conversion, the engine assembly 30 has high rotating speed and large torque, so that the engine assembly 30 runs with the maximum power, and the transmission case 10 has larger and stronger power to complete the operation; further comprising: the pin acoustic device assembly 40 is connected at the outlet position of the engine assembly 30, the pin acoustic device assembly 40 is arranged on the outer side of the engine assembly 30, the air filter assembly 50 is connected at the inlet position of the engine assembly 30, the air filter assembly 50 is arranged on the outer side of the engine assembly 30, the water cooling assembly 60 is connected on the radiator 61, the shock absorption pad group 70 is distributed at the bottom of the power system, the air pipe 80 is used for connecting the pin acoustic device assembly 40 with the engine assembly 30 and connecting the air filter assembly 50 with the engine assembly 30, and the clutch sub-pump 90 is connected with the clutch 100.

As shown in fig. 2, 5-7, a hydraulic oil-cooled heat dissipation device is disposed in the engine assembly 30, an evaporator is disposed in the oil tank cylinder, the evaporator is connected to a compressor outside the oil tank cylinder, an oil-cooled oil pipe is communicated with the crankshaft, the clutch 100 and the valve assembly, the oil pipe is disposed in the engine cylinder, one end of the oil pipe is connected to the oil tank, the other end of the oil pipe connects the oil pump to the engine cylinder, and the oil pipe passes through the crankshaft, the clutch 100 and the valve assembly; the cooling device of the engine assembly 30 further comprises a water cooling assembly 60, wherein the water cooling assembly 60 comprises a water tank 66, a water pump, a thermostat 65, a fan, a water temperature sensor and other components; the water cooling assembly 60 mainly uses water cooling as a main part, utilizes circulating water in a water channel of the cylinder to cool, introduces heated water in the water channel into the radiator 61, and returns to the process of the water channel after air blowing cooling by the fan; the thermostat 65 of the water cooling assembly 60 mainly utilizes temperature control to open or close cooling liquid for circulation operation, when the engine assembly 30 starts to work, the cooling liquid directly enters a water pump from a bypass water pipe before the thermostat 65 is not opened, is input into a cylinder body, cools a cylinder sleeve, an engine oil cooler, then passes through a cylinder cover, a cooling fuel nozzle and a valve seat ring, is gathered together through a water dividing pipe arranged on each cylinder cover, flows to the thermostat 65, the cooling liquid can only flow into the water pump through the bypass water pipe and is input into the cylinder body again for circulation cooling, when the temperature of the cooling liquid rises (reaches a set temperature which is about 90 degrees) after the engine normally works for a long time, a valve core of the thermostat 65 can be opened, a passage leading to a radiator is opened, a bypass passage leading to the water pump is closed, and the cooling water is forced to flow into the top of the radiator through a water inlet pipe, through the heat dissipation core pipe, heat is blown away by cold air blown by the fan, and cooled cooling water flows into the lower water chamber of the water tank again and is input into the cylinder body again for cooling through the water pump; the thermostat 65 is arranged at the water outlet at the upper part of the cooling water of the engine, so that the thermostat is convenient to disassemble and maintain, and meanwhile, when the cooling water is replaced, air is easy to discharge; the water-cooled water pipe communicates with the water-cooled assembly 60, the fuel nozzle and the valve seat ring, the water pipe is arranged on the cylinder, the water pipe communicates with the water inlet 62 and the water outlet 64, and the water pipe passes through the water-cooled assembly 60, the fuel nozzle and the valve seat ring.

As shown in fig. 5-7, a water tank 66 is disposed in the water cooling assembly 60, a water pipeline is disposed on one side of the water tank 66 in the wind direction, a water inlet 62 and a water outlet 64 are respectively disposed on the upper side and the lower side of the water tank 66, an overflow port 63 is disposed between the water inlet 62 and the water tank 66, the water tank 66 and the radiator 61 are disposed in parallel, a thermostat 65 is further disposed on the water inlet 62, and the thermostat 65 is used for opening and closing the water cooling assembly 60.

As shown in fig. 10, the middle layer 81 of the air tube 80 is woven cloth, the inner and outer wrapping layers 82 of the middle layer 81 are ethylene propylene diene monomer rubber, and the air tube has the characteristics of anaerobic resistance, heat resistance, aging resistance and erosion resistance, is low in manufacturing cost and reduces capital investment.

As shown in fig. 8 and 9, the cushion unit 70 is composed of a bracket and a connecting bolt for connecting the power system to the vehicle frame, and a rubber washer 71 provided at a position where the connecting bolt contacts the metal.

As shown in fig. 2 and 4, the pin acoustic assembly 40 includes a pin acoustic device, a mounting plate and a band, wherein the mounting plate and the band are used for fixedly connecting the pin acoustic device to the outside of the engine assembly 30; the air filter assembly 50 is provided with an air filter at the air port, and the air filter is used for filtering dust in air, so that the air filter is convenient to disassemble and assemble.

As shown in fig. 6 and 7, a condenser is disposed outside the water tank 66, the condenser is fixedly connected with the water tank 66 by a bracket, and heat dissipation of the condenser is performed by blowing air through a fan disposed on the water cooling assembly 60.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. Power system of small-size wheel excavator, including transmission case (10), gearbox (20), clutch (100), engine assembly (30) and radiator (61) of installing in proper order, its characterized in that still includes:

a pin acoustic assembly (40), the pin acoustic assembly (40) being connected at an engine assembly (30) outlet location;

an air filter assembly (50), the air filter assembly (50) being connected at an inlet location of the engine assembly (30);

the water cooling assembly (60), the said water cooling assembly (60) is connected to the radiator (61);

the shock absorption pad sets (70), and the shock absorption pad sets (70) are distributed at the bottom of the power system;

an air tube (80), the air tube (80) for connecting the pin horn assembly (40) and the motor assembly (30), and for connecting the air filter assembly (50) and the motor assembly (30);

the clutch cylinder (90), the clutch cylinder (90) is connected with the clutch (100).

2. The power system of a small wheel excavator according to claim 1, characterized in that the engine assembly (30) cooling means is composed of oil cooling and water cooling, the oil cooling oil pipeline is communicated with the crankshaft, the clutch (100) and the valve assembly, and the water cooling water pipeline is communicated with the water cooling assembly (60), the fuel nozzle and the valve seat ring.

3. The power system of a small wheel excavator according to claim 2, wherein the oil conduit is provided in the engine block, one end of the oil conduit is connected to the oil tank, the other end of the oil conduit connects the oil pump with the engine block, and the oil conduit passes through the crankshaft, the clutch (100) and the valve assembly.

4. The power system of a small wheel excavator according to claim 2 wherein the water conduit is provided on the cylinder and communicates with the water inlet (62) and the water outlet (64), the water conduit passing through the water cooling assembly (60), the fuel nozzle and the valve seat.

5. The power system of a small-sized wheel excavator according to claim 1, wherein a water tank (66) is arranged in the water cooling assembly (60), a water pipeline is arranged on one side of the water tank (66) in the wind flow direction, a water inlet (62) and a water outlet (64) are respectively arranged on the upper side and the lower side of the water tank (66), an overflow opening (63) is arranged between the water inlet (62) and the water tank (66), and the water tank (66) and the radiator (61) are arranged in parallel.

6. The power system of the small-sized wheel excavator as claimed in claim 5, wherein a thermostat (65) is further arranged on the water inlet (62), and the thermostat (65) is used for opening and closing the water cooling assembly (60).

7. The power system of a small wheel excavator according to claim 1, characterized in that the shock pad set (70) is composed of a bracket, a connecting bolt and a rubber washer (71), the bracket and the connecting bolt connect the power system with the vehicle frame, and the rubber washer (71) is arranged at the position where the connecting bolt contacts with metal.

8. The power system of a small wheel excavator according to claim 1, wherein the pin sound assembly (40) and the air filter assembly (50) are provided outside the engine assembly (30).