Auxiliary heat dissipation device and method for hydraulic excavator hammer pipeline

Abstract

The present invention discloses an auxiliary heat dissipation device and method for a hydraulic excavator hammer pipeline, comprising an electronic hydraulic oil radiator, a seesaw switch, and a distribution valve block; the seesaw switch is connected to the control end of the electronic hydraulic oil radiator; the distribution valve block is a three-way valve, having a first port, a second port, and a third port, wherein the third port of the distribution valve block is connected to the hydraulic oil port of the electronic hydraulic oil radiator, wherein the first port of the distribution valve block is connected to the oil return port of the hydraulic breaker, wherein the second port of the distribution valve block is connected to the original hydraulic oil radiator through a main control valve. It also includes a ball valve; the ball valve is connected between the third port of the distribution valve block and the hydraulic oil port of the electronic hydraulic oil radiator. The present invention solves the problem of high temperature of hydraulic oil caused by insufficient cooling capacity of the original hydraulic oil radiator when a hydraulic breaker is installed on an excavator at a construction site for crushing operations.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic breaker hammers, in particular to an auxiliary heat dissipation device and method for a pipeline of a hydraulic excavator breaker hammer. Background Art

[0002] Hydraulic breaker is called "breaker" or "crusher" for short. Its power comes from the pressure provided by the hydraulic main pump. It can break stones and rocks more effectively in engineering construction and improve work efficiency. In order to meet the current market demand, domestic excavator manufacturers have developed "hammer king" products dedicated to breaking operations. This product is equipped with a large breaker model and an independent hydraulic oil cooling system, which has the advantages of high work efficiency and reliable performance.

[0003] Customers who use ordinary excavators in the market often need to install hydraulic breakers for crushing operations according to the requirements of construction conditions, and try to choose large-sized breakers to improve crushing capacity. Large-sized hydraulic breakers have the characteristics of large driving flow and high driving oil pressure, which not only requires the hydraulic system of the whole machine to provide sufficient flow, but also requires the hydraulic oil radiator to have sufficient hydraulic oil cooling capacity. The driving flow of the hydraulic breaker can be met by the confluence of the pipeline inside or outside the double pump valve, but it is unrealistic to improve the hydraulic oil cooling capacity of the original system by replacing the hydraulic oil radiator with high cooling power at the construction site. Therefore, when some excavators are equipped with large breakers for crushing operations in summer, due to the high ambient temperature, high hydraulic oil temperature often occurs. Once the hydraulic oil temperature exceeds 70°C, the crushing efficiency will drop sharply. Customers usually have to choose to give up crushing operations in summer, which not only seriously affects the customer's income, but also is not conducive to the full use of the excavator. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a hydraulic excavator breaker hammer pipeline auxiliary heat dissipation device, which solves the problem of high temperature of hydraulic oil caused by insufficient cooling capacity of the original hydraulic oil radiator when the excavator is equipped with a hydraulic breaker hammer for breaking operations at the construction site.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An auxiliary heat dissipation device for a hydraulic excavator hammer pipeline includes an electronic hydraulic oil radiator, a rocker switch, and a distribution valve block;

[0007] The rocker switch is connected to the control end of the electronic hydraulic oil radiator;

[0008] The distribution valve block is a three-way valve having a first port, a second port, and a third port, wherein the third port of the distribution valve block is connected to the hydraulic oil port of the electronic hydraulic oil radiator, wherein the first port of the distribution valve block is connected to the oil return port of the hydraulic breaker, and wherein the second port of the distribution valve block is connected to the original hydraulic oil radiator through the main control valve.

[0009] Further, it also includes a ball valve;

[0010] The ball valve is connected between the third port of the distribution valve block and the hydraulic oil port of the electronic hydraulic oil radiator.

[0011] Further, it also includes an oil return filter;

[0012] The oil return filter and the oil outlet of the electronic hydraulic oil radiator.

[0013] Furthermore, the rocker switch is connected to a power source.

[0014] In order to achieve the above object, the present invention adopts the following technical solutions:

[0015] A method for using a hydraulic excavator hammer pipeline auxiliary heat dissipation device comprises the following steps:

[0016] When operating a hydraulic breaker, when the hydraulic oil temperature is lower than 70°C, the rocker switch is connected to the power supply but is in the disconnected state, and the electronic hydraulic oil radiator cannot be controlled to work; the ball valve is in the closed state, cutting off the circuit between the oil inlet D of the electronic hydraulic oil radiator and the oil port C of the distribution valve block, so that the return oil of the hydraulic breaker passes through the oil return port T to the oil ports A and B of the distribution valve block until the original hydraulic oil radiator is cooled;

[0017] When operating a hydraulic breaker, when the hydraulic oil temperature is higher than 70°C, the driver presses the rocker switch to turn it on and opens the ball valve at the same time; at this time, the rocker switch is connected to the power supply to control the operation of the electronic hydraulic oil radiator; after the ball valve is opened, the oil inlet D of the electronic hydraulic oil radiator is connected to the oil port C of the distribution valve block, so that the return oil of the hydraulic breaker passes through the oil ports C and B of the distribution valve block, with one part flowing to the electronic hydraulic oil radiator for cooling and the other part flowing to the original hydraulic oil radiator for cooling.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] After the rocker switch is connected to the power supply, it controls the opening of the electronic hydraulic oil radiator. The distribution valve block is responsible for directing the return oil circuit of the breaker to the original hydraulic oil radiator and the electronic hydraulic oil radiator at the same time. The ball valve controls the oil circuit of the distribution valve block and the electronic hydraulic oil radiator. When the excavator is equipped with a hydraulic breaker for crushing operations, the driver can independently choose to open the auxiliary cooling device according to the changes in the hydraulic oil temperature of the monitor. This can not only effectively solve the problem of high temperature of hydraulic oil, but also reduce the number of times the electronic hydraulic oil radiator is used and extend its service life. At the same time, adding a return oil filter to the return oil circuit of the hydraulic breaker can effectively filter impurities in the hydraulic oil and ensure the cleanliness of the hydraulic oil. This auxiliary cooling device has the advantages of low cost, simple installation, and good cooling effect, and has a very high cost performance for customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic structural diagram of a hydraulic excavator breaker hammer pipeline auxiliary heat dissipation device.

[0021] In the figure: 1. power supply, 2. rocker switch, 3. electronic hydraulic oil radiator, 4. return oil filter, 5. hydraulic breaker, 6. distribution valve block, 7. ball valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1:

[0024] See also Figure 1 , the present invention provides a technical solution:

[0025] An auxiliary heat dissipation device for a hydraulic excavator breaker hammer pipeline, an auxiliary heat dissipation device for a hydraulic excavator breaker hammer pipeline, comprising an electronic hydraulic oil radiator, a rocker switch, and a distribution valve block;

[0026] The rocker switch is connected to the control end of the electronic hydraulic oil radiator;

[0027] The distribution valve block is a three-way valve having a first port, a second port, and a third port, wherein the third port of the distribution valve block is connected to the hydraulic oil port of the electronic hydraulic oil radiator, wherein the first port of the distribution valve block is connected to the oil return port of the hydraulic breaker, and wherein the second port of the distribution valve block is connected to the original hydraulic oil radiator through the main control valve.

[0028] Further, it also includes a ball valve;

[0029] The ball valve is connected between the third port of the distribution valve block and the hydraulic oil port of the electronic hydraulic oil radiator.

[0030] Further, it also includes an oil return filter;

[0031] The oil return filter and the oil outlet of the electronic hydraulic oil radiator.

[0032] Furthermore, the rocker switch is connected to a power source.

[0033] like Figure 1 As shown, it includes: power supply 1, which is directly powered from the fuse box in the cab, a rocker switch 2 installed on the control panel, an electronic hydraulic oil radiator 3 installed on the top plate of the cover by a bracket, and an electronic fan is used to cool the hydraulic oil. In addition, it is necessary to select a radiator model with appropriate heat dissipation power according to the model of the installed breaker and the cooling capacity of the original system, and the oil inlet D needs to be connected with a small-diameter transition joint to increase the return oil pressure of this circuit, so that the flow between the original hydraulic oil radiator and the original hydraulic oil radiator can be reasonably distributed, and the return oil filter 4 is installed on the upper frame by a bracket, a hydraulic breaker 5, a distribution valve block 6 installed on the upper frame, and a ball valve 7 installed between the distribution valve block and the electronic hydraulic oil radiator oil circuit. The rocker switch 2 is connected to the power supply 1 to control the opening of the electronic hydraulic oil radiator 3; the oil inlet D of the electronic hydraulic oil radiator 3 is connected to the ball valve 7, and the oil outlet E is connected to the return oil filter 4 to the hydraulic oil tank; the oil port A of the distribution valve block 6 is connected to the return oil port T of the hydraulic breaker 5, the oil port C is connected to the ball valve 7, and the oil port B is connected to the original hydraulic oil radiator circuit. The oil inlet of the hydraulic breaker is connected to the original hydraulic pump through the main control valve.

[0034] A method of using an auxiliary heat dissipation device for a hydraulic excavator hammer pipeline is as follows:

[0035] When operating a hydraulic breaker, if the hydraulic oil temperature is below 70°C, Figure 1 As shown: at this time, the rocker switch 2 is connected to the power supply 1 and is in the disconnected state, and the electronic hydraulic oil radiator 3 cannot be controlled to work; the ball valve 7 is in the closed state, cutting off the circuit between the oil inlet D of the electronic hydraulic oil radiator 3 and the oil port C of the distribution valve block 6, so that the return oil of the hydraulic breaker 5 passes through the return oil port T to the oil ports A and B of the distribution valve block 6 until the original hydraulic oil radiator is cooled. At this time, the auxiliary cooling device does not work, and only the original hydraulic oil radiator cools the return oil of the breaker.

[0036] When operating the hydraulic breaker, when the hydraulic oil temperature is higher than 70°C, the driver presses the rocker switch 2 and opens the ball valve 7 at the same time. At this time, the rocker switch 2 is connected to the power supply 1 to control the operation of the electronic hydraulic oil radiator 3; after the ball valve 7 is opened, the oil inlet D of the electronic hydraulic oil radiator 3 is connected to the oil port C of the distribution valve block 6, so that the return oil of the hydraulic breaker 5 passes through the oil ports C and B of the distribution valve block 6, and part of it flows to the electronic hydraulic oil radiator 3 for cooling, and the other part flows to the original hydraulic oil radiator for cooling. At this time, the original hydraulic oil radiator and the auxiliary heat dissipation device are connected in parallel to cool the return oil of the breaker, so as to control the hydraulic oil temperature within the normal range.

[0037] All parts and components not discussed in detail in this application and the connection methods of the parts and components in this application belong to the well-known technology in this technical field and will not be described in detail, such as welding, threaded connection, etc.

[0038] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0040] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for using a hydraulic excavator hammer pipeline auxiliary heat dissipation device, characterized in that: The following steps are involved: When operating a hydraulic breaker, when the hydraulic oil temperature is lower than 70°C, the rocker switch is connected to the power supply but is in the disconnected state, and the electronic hydraulic oil radiator cannot be controlled to work; the ball valve is in the closed state, cutting off the circuit between the oil inlet D of the electronic hydraulic oil radiator and the oil port C of the distribution valve block, so that the return oil of the hydraulic breaker passes through the oil return port T to the oil ports A and B of the distribution valve block until the original hydraulic oil radiator is cooled; When operating a hydraulic breaker, when the hydraulic oil temperature is higher than 70°C, the driver presses the rocker switch to turn it on and opens the ball valve at the same time; at this time, the rocker switch is connected to the power supply to control the operation of the electronic hydraulic oil radiator; after the ball valve is opened, the oil inlet D of the electronic hydraulic oil radiator is connected to the oil port C of the distribution valve block, so that the return oil of the hydraulic breaker passes through the oil ports C and B of the distribution valve block, and part of it flows to the electronic hydraulic oil radiator for cooling, and the other part flows to the original hydraulic oil radiator for cooling; The hydraulic excavator hammer pipeline auxiliary heat dissipation device used in the method includes an electronic hydraulic oil radiator, a rocker switch, and a distribution valve block; The rocker switch is connected to the control end of the electronic hydraulic oil radiator; The distribution valve block is a three-way valve having a first port, a second port, and a third port, wherein the third port of the distribution valve block is connected to the hydraulic oil port of the electronic hydraulic oil radiator, wherein the first port of the distribution valve block is connected to the oil return port of the hydraulic breaker, wherein the second port of the distribution valve block is connected to the original hydraulic oil radiator through the main control valve; It also includes a ball valve, which is connected between the third port of the distribution valve block and the hydraulic oil port of the electronic hydraulic oil radiator; It also includes an oil return filter, which is connected to the oil outlet of the electronic hydraulic oil radiator; The rocker switch is connected to a power source.

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