Centralized lubrication maintenance system for engineering machinery

Abstract

The utility model relates to the technical field of engineering machinery maintenance and oil change, in particular to an engineering machinery centralized lubrication maintenance system which comprises an oil inlet group, an oil storage group, an oil filling group, a collecting tank, a gathering group and an oil pumping group. During use, the plurality of oil storage barrels are arranged in the oil storage group, and each oil storage barrel is correspondingly provided with the first oil well pump and the second oil well pump, so that classified use according to oil models is met, and the situation of secondary cross contamination of oil caused by the fact that one oil well pump is used for pumping oil for multiple times or different types of oil is avoided; the situation that metering is not accurate due to the fact that a quantitative oil pot is used is avoided, a self-sealing oil gun is arranged in the oil pumping set, a collecting set is arranged at the top of a collecting tank, waste oil can be conveniently collected and discharged in a centralized mode, and the situation that the waste oil leaks into the environment to cause environmental pollution is reduced; therefore, the maintenance and oil change processes of the engineering machinery are concentrated.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery maintenance and oil replacement, in particular to a centralized lubrication maintenance system for engineering machinery. Background Art

[0002] In the modern engineering field, construction machinery such as excavators, forklifts, rock drills and mining trucks play a vital role. However, like any mechanical equipment, after long-term and intensive use, the various components of these construction machinery will gradually wear out and their performance will decline. In order to ensure that these construction machinery can work continuously and efficiently and extend their service life, regular care and maintenance are essential.

[0003] The current maintenance field has higher requirements for the cleanliness of oil products, which require quality and quantity, and environmental protection requires that waste oil (hazardous waste) must be 100% recycled. However, large-scale equipment uses a large amount of oil, and oil recycling is prone to spillage. In the past, maintenance and maintenance were done by collecting oil in oil barrels and then refueling with quantitative oil pots, or using simple refueling guns. This would cause the following problems:

[0004] First, multiple refueling or when the metered oil tank is not full will result in inaccurate metering, and using one oil pump for multiple or different types of oil extraction is likely to cause secondary cross contamination of the oil;

[0005] Secondly, the process of extracting oil products from oil drums and recycling old oil into oil drums will inevitably cause waste oil to leak into the environment, causing environmental pollution and easily causing hidden dangers such as fire, which is extremely inconsistent with the current safety and environmental protection situation that is vigorously advocated.

[0006] Third, the entire process requires inverting the oil drum, repeatedly pumping out the oil, and repeatedly checking the oil level dipstick, which is time-consuming and labor-intensive, and it is very easy for waste oil to leak during the operation.

[0007] In view of this, we propose a centralized lubrication and maintenance system for construction machinery. Utility Model Content

[0008] The utility model aims to provide a centralized lubrication and maintenance system for engineering machinery which combines oil intake, oil storage, oil filling and waste oil extraction to solve the problems raised in the above-mentioned background technology.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A centralized lubrication and maintenance system for engineering machinery includes a refueling group for refilling lubricating oil, wherein oil storage groups for storing oil and collecting tanks for centralized recovery of waste oil are respectively provided on both sides of the refueling group, an oil inlet group for supplying oil to the oil storage group is connected to one side of the oil storage group, a collecting group is provided on the top of the collecting tank, and an oil pumping group for discharging waste oil from the collecting tank is connected to one side of the collecting tank.

[0011] As a further solution of the utility model: the oil inlet group includes a plurality of first oil pumps, and the oil inlet of the first oil pump is provided with an oil pumping pipe connected to an external oil barrel.

[0012] As a further solution of the utility model: the oil storage group includes an oil storage rack with an enclosure, and the oil storage rack is provided with a plurality of oil storage barrels, the number of the oil storage barrels is the same as the first oil pump, and a single oil storage barrel and a single first oil pump are connected through a connecting pipe.

[0013] As a further solution of the utility model: the refueling group includes a second oil pump fixed to the top of the oil storage barrel and a refueling cabinet, the oil inlet of the second oil pump extends into the oil storage barrel through a connecting pipe, the oil outlet of the second oil pump is connected to a metering filling gun through a connecting pipe, and the metering filling gun is fixed in the refueling cabinet.

[0014] As a further solution of the utility model: the collecting group includes a collecting pipe with a trumpet-shaped end, a grille is provided in the trumpet port of the collecting pipe, and one side of the collecting pipe is connected to an oil receiving funnel.

[0015] As a further solution of the utility model: both sides of the top of the collection tank are connected to one end of the collecting pipe away from the trumpet port, and an overflow preventer and a respirator are also provided on the top of the collection tank.

[0016] As a further solution of the utility model: the oil pumping group includes a backflow prevention device, a third oil pump and a self-sealing oil gun which are connected in sequence, and a connecting pipe is provided between the backflow prevention device and one side of the collection tank.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. In the centralized lubrication and maintenance system for construction machinery, multiple oil storage barrels are arranged in the oil storage group, and each oil storage barrel is equipped with a first oil pump and a second oil pump to meet the requirements of oil classification according to oil types, avoiding the secondary cross-contamination of oil caused by using one oil pump for multiple or different types of oil extraction. At the same time, a metering filling gun is used for refueling to avoid inaccurate metering caused by using a quantitative oil pot.

[0019] 2. In the centralized lubrication and maintenance system for construction machinery, a self-sealing oil gun is installed in the oil extraction group and a collection group is installed on the top of the collection tank, so that the waste oil can be collected and discharged conveniently, thereby reducing the possibility of waste oil leaking into the environment and causing environmental pollution.

[0020] 3. In the centralized lubrication and maintenance system for construction machinery, the oil inlet group, oil storage group, oil filling group, collection tank, collection group and oil extraction group are set up, so as to centralize the maintenance and oil changing process of construction machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0022] Figure 2 This is a schematic diagram of the refueling group and the collection group structure of this scheme;

[0023] Figure 3 This is a schematic diagram of the collection tank and pumping group structure of this scheme.

[0024] The meaning of each number in the figure is:

[0025] 100. Oil inlet group; 101. Oil extraction pipe; 102. First oil pump; 110. Oil storage group; 111. Oil storage barrel; 112. Oil storage rack; 120. Refueling group; 121. Second oil pump; 122. Refueling cabinet; 123. Metering filling gun; 130. Collection group; 131. Collection pipe; 132. Grille; 133. Oil receiving funnel; 140. Collection tank; 141. Overflow preventer; 142. Respirator; 150. Oil extraction group; 151. Backflow prevention device; 152. Third oil pump; 153. Self-sealing oil gun. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 As shown, this embodiment provides a centralized lubrication and maintenance system for construction machinery, including a refueling group 120 for refueling lubricating oil, and oil storage groups 110 for storing oil and collecting tanks 140 for centralized recovery of waste oil are respectively provided on both sides of the refueling group 120, one side of the oil storage group 110 is connected to an oil inlet group 100 for supplying oil to the oil storage group 110, a collecting group 130 is provided on the top of the collecting tank 140, and one side of the collecting tank 140 is connected to an oil pumping group 150 for discharging waste oil from the collecting tank 140.

[0028] The improvement of this embodiment lies in that by arranging the oil inlet group 100, the oil storage group 110, the refueling group 120, the collection tank 140, the collection group 130 and the oil pumping group 150, the maintenance and oil changing process of the construction machinery is centralized, and all operations do not need to reverse the oil drum, repeatedly pump out the oil, and repeatedly check the oil level dipstick. The entire maintenance process saves time and effort, is safe and efficient, and the oil will not be spilled on the ground. It is hygienic and environmentally friendly, and the waste oil can be recycled in a unified manner.

[0029] Taking into account the storage of different oil products, the oil inlet group 100 includes a plurality of first oil pumps 102. The oil inlet of the first oil pump 102 is provided with an oil extraction pipe 101 connected to an external oil barrel. The number of the first oil pumps 102 can be set according to the type of oil. The first oil pump 102 is a pneumatic oil extraction diaphragm pump. After the oil barrel is moved to the oil extraction position, the quick oil extraction pipe 101 can be directly inserted into the barrel to extract the oil into the oil storage barrel 111. Pneumatic pumps for various types of oil are not mixed to avoid cross-contamination of lubricating oils and secondary contamination during the removal of the oil pump. In addition, a large amount of oil can be replenished at one time without the need to transport the oil back and forth many times.

[0030] Taking into account the installation of the oil storage barrel 111, the oil storage group 110 includes an oil storage rack 112 with an enclosure, and a plurality of oil storage barrels 111 are arranged in the oil storage rack 112. The oil storage capacity of the oil storage barrel 111 can be set according to the size of the site to store a variety of oil products, avoid the inconvenience of carrying large oil barrels and the trouble of transporting small oil barrels back and forth. The oil storage barrel 111 is placed on the oil storage rack 112, and the oil storage rack 112 is provided with an edge enclosure, and an oil guide pipe is provided to the waste oil collection tank 140 to avoid leakage of the oil storage barrel 111, or other reasons The oil leaks and flows to the ground and causes pollution. The number of oil storage barrels 111 is the same as the first oil pump 102, and a single oil storage barrel 111 is connected to a single first oil pump 102 through a connecting pipe.

[0031] like Figure 2 As shown, in order to facilitate refueling, the refueling group 120 includes a second oil pump 121 fixed on the top of the oil storage barrel 111 and a refueling cabinet 122, wherein the second oil pump 121 is a pneumatic plunger oil pump, and the length can be set according to the selected ton barrel oil storage capacity. The oil inlet of the second oil pump 121 extends into the oil storage barrel 111 through a connecting pipe, and the oil outlet of the second oil pump 121 is connected to a metering filling gun 123 through a connecting pipe, wherein the connecting pipe is rolled up in a telescopic reel, and the length of the reel pipeline can be set according to the distance of the site, and can be up to 50 meters. The metering filling gun 123 and the telescopic reel are fixed in the refueling cabinet 122, and the refueling cabinet 122 can be set according to the type of oil and the size of the site. A door lock can be set, and the key can be kept separately to avoid refueling without registration. The metering filling gun 123 has quantitative, recording, pressure maintaining, and overflow prevention functions, which can clearly record the amount of refueling, and can also accurately add oil according to the set standard. It has an overflow prevention function to avoid oil spilling.

[0032] like Figure 2 and Figure 3 As shown, considering the centralized collection of waste oil, the collection group 130 includes a collection pipe 131 with a trumpet-shaped end, and the waste oil can be directly poured into the collection pipe 131, which can avoid the overflow phenomenon when the oil is recovered into the iron barrel in the past. A grille 132 is provided in the trumpet port of the collection pipe 131. The old filter element to be replaced is removed and inverted on the recovery grille 132, and the residual oil flows into the collection pipe 131. After the waste oil flows out, it is recycled and processed, avoiding the overflow of the residual oil recovered by the filter element in the past. An oil receiving funnel 133 is connected to one side of the collection pipe 131. The waste oil discharged by equipment maintenance or replacement of hydraulic system components can be directly poured into the collection pipe 131, which can avoid the overflow phenomenon caused by the inability to judge how much oil the oil barrel can hold when the oil is recovered into the iron barrel in the past. During routine maintenance of the equipment, the waste oil receiving funnel 133 can be placed at the oil receiving position. The waste oil hose and the waste oil receiving funnel 133 are nested and connected and fastened with a clamp to prevent loosening. The waste oil flows into the waste oil storage tank along the hose, and there is no need to use a bucket to collect the waste oil. The two sides of the top of the collection tank 140 are connected to the end of the collecting pipe 131 away from the horn port. The collection tank 140 can be buried or placed in a pit to facilitate the gravity recovery of waste oil. The top of the collection tank 140 is also provided with an overflow preventer 141 (12V liquid level switch type) and a respirator 142 (2.5-inch fire-resistant and breathable type). The overflow preventer 141 is set to alarm when the oil level in the collection tank 140 exceeds 80% (can be set) to prevent oil spills. The respirator 142 is set to prevent oil and gas evaporation from forming internal pressure.

[0033] Considering the waste oil recovery, the pumping group 150 includes a backflow prevention device 151, a third oil pump 152 and a self-sealing oil gun 153 which are connected in sequence. A connecting pipe is provided between the backflow prevention device 151 and one side of the collecting tank 140. When the overflow preventer 141 of the collecting tank 140 gives an alarm, the maintenance personnel load the empty barrels onto a truck and move them to the third oil pump 152. The third oil pump 152 is a pneumatic diaphragm pump. The third oil pump 152 pumps the waste oil from the collecting tank 140 through the self-sealing oil gun 153. Empty barrels of waste oil are pumped into the collection tank 140. By utilizing the Venturi effect, the self-sealing oil gun 153 automatically jumps out of the barrel to prevent overflow after the barrel is filled. A backflow prevention device 151 (H14W-16P-DN50 check valve) is provided to prevent oil backflow and bubbling and splashing caused by the diaphragm pump. The empty barrels are filled in turn until the collection tank 140 is emptied. There is no need to carry or forklift the oil barrels, which is safe and efficient. After the oil is extracted, the waste oil will be handed over to a hazardous waste treatment company for recycling and treatment.

[0034] In summary, the working principle of this scheme is as follows:

[0035] The maintenance personnel of the oil station will move the oil products to the oil extraction pipe 101, insert the oil extraction pipe 101 into the oil barrel in turn, turn on the first oil extraction pump 102, and pump the relevant types of oil products into the oil storage barrel 111 until it is full and the oil replenishment operation is completed. After the equipment operator moves the equipment to be maintained to the maintenance area, he will turn off the power, support and stabilize the equipment, hang up the operation sign, take out the waste oil receiving funnel 133 from the refueling cabinet 122, place it at the position where the oil needs to be drained, and fix it. Then, unscrew the oil drain valve or bolt, and the waste oil flows from the oil receiving funnel 133 through the collecting pipe 131 to the collection tank 140. Then, remove the filter element to be replaced and invert it on the filter element recovery grid 132, so that the waste oil inside the filter element flows through the collecting pipe 131 to the collection tank 140. During this period, pay attention to whether the overflow preventer 141 alarms to avoid To prevent the collection tank 140 from being overfilled and overflowing, replace the filter element and tighten the oil drain bolt. After closing the valve, pull out the metering filling gun 123 from the refueling cabinet 122, set the required refueling amount, and open the second oil pump 121 until the metering filling gun 123 refuels and the gun jumps, ending the refueling procedure. After checking that the oil level is normal, turn off the second oil pump 121, put all the equipment in place and drive the equipment out of the maintenance area, and the entire maintenance process is completed. When the overflow preventer 141 alarms, the gas station maintenance personnel will load the empty barrels onto the truck and move them to the third oil pump 152, insert the self-sealing oil gun 153 into the empty barrels, turn on the air source switch to start the third oil pump 152, fill the empty barrels with waste oil in turn, and the self-sealing oil gun 153 jumps until the collection tank 140 is emptied, and the waste oil can be directly taken to the hazardous waste disposal site.

[0036] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0037] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A centralized lubrication and maintenance system for construction machinery, comprising a refueling group (120) for refueling lubricating oil, characterized in that: An oil storage group (110) for storing oil and a collection tank (140) for collecting waste oil are respectively arranged on both sides of the refueling group (120); one side of the oil storage group (110) is connected to an oil supply group (100) for supplying oil to the oil storage group (110); a collection group (130) is arranged on the top of the collection tank (140); and one side of the collection tank (140) is connected to an oil extraction group (150) for discharging waste oil from the collection tank (140).

2. The centralized lubrication and maintenance system for construction machinery according to claim 1, characterized in that: The oil inlet group (100) comprises a plurality of first oil pumps (102), and the oil inlet of each of the first oil pumps (102) is provided with an oil pumping pipe (101) connected to an external oil barrel.

3. The centralized lubrication and maintenance system for construction machinery according to claim 2, characterized in that: The oil storage group (110) comprises an oil storage rack (112) provided with an enclosure, a plurality of oil storage barrels (111) are arranged in the oil storage rack (112), the number of the oil storage barrels (111) is the same as the number of the first oil pump (102), and a single oil storage barrel (111) and a single first oil pump (102) are connected via a connecting pipe.

4. The centralized lubrication and maintenance system for construction machinery according to claim 3, characterized in that: The refueling group (120) comprises a second oil pump (121) fixed to the top of the oil storage barrel (111) and a refueling cabinet (122); the oil inlet of the second oil pump (121) extends into the oil storage barrel (111) through a connecting pipe; the oil outlet of the second oil pump (121) is connected to a metering refueling gun (123) through a connecting pipe; and the metering refueling gun (123) is fixed in the refueling cabinet (122).

5. The centralized lubrication and maintenance system for construction machinery according to claim 1, characterized in that: The collecting group (130) comprises a collecting pipe (131) having a trumpet-shaped end, a grille (132) is provided in the trumpet-shaped end of the collecting pipe (131), and one side of the collecting pipe (131) is connected to an oil receiving funnel (133).

6. The centralized lubrication and maintenance system for construction machinery according to claim 5, characterized in that: Both sides of the top of the collection tank (140) are connected to an end of the collecting pipe (131) away from the horn port, and an overflow preventer (141) and a respirator (142) are also provided on the top of the collection tank (140).

7. The centralized lubrication and maintenance system for construction machinery according to claim 6, characterized in that: The oil pumping group (150) comprises a backflow prevention device (151), a third oil pump (152) and a self-sealing oil gun (153) which are connected in sequence, and a connecting pipe is provided between the backflow prevention device (151) and one side of the collection tank (140).

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