Oil supplementing system and coal mining machine

Abstract

The utility model provides an oil recharging system and a coal mining machine, and the oil recharging system comprises an oil recharging oil source which is used for providing recharging oil for a part to be recharged of equipment to be recharged; the oil recharging pump is arranged between the oil recharging source and the to-be-recharged part, the oil recharging pump comprises a pump body and a driving mechanism for providing pumping power for the pump body, the driving mechanism is arranged in a hydraulic system of the to-be-recharged equipment, and the driving mechanism drives the pump body to pump and recharge oil by introducing hydraulic oil in the hydraulic system. The oil recharging system is applied to the coal mining machine, the oil recharging process of the gear box in the coal mining machine can be smoothly completed in a working face, and the technical problem that the oil recharging mode of the gear box of the coal mining machine in the prior art is limited, and the oil recharging efficiency of the gear box is affected is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box oil supplementing system technical field, concretely relates to a kind of oil supplementing system and coal mining machine. BACKGROUND

[0002] At present, gear box oil supplementing is mostly direct filling after opening cover or using hand pump, pneumatic diaphragm pump and other filling mode, wherein opening cover filling will have coal dust, gangue and other particles into gear box to affect gear transmission, and filling by hand pump is time-consuming and laborious due to high viscosity of gear oil, and pneumatic diaphragm pump is greatly affected by working face conditions, and working face may appear no gas source, resulting in that pneumatic diaphragm pump cannot be used. Therefore, the existing technology of coal mining machine gear box oil supplementing is limited, which affects the oil supplementing efficiency of gear box.

[0003] Therefore, the prior art needs to be further developed. INVENTION CONTENTS

[0004] The utility model aims at overcoming the above technical deficiencies, and provides an oil supplementing system and coal mining machine to solve the technical problem that the oil supplementing mode of coal mining machine gear box is limited in related art, which affects the oil supplementing efficiency of gear box.

[0005] To achieve the above technical purpose, the utility model takes the following technical scheme: an oil supplementing system is provided, which comprises: an oil supplementing source for providing oil supplementing to a to-be-oil-supplemented part of a to-be-oil-supplemented device; and an oil supplementing pump arranged between the oil supplementing source and the to-be-oil-supplemented part, wherein the oil supplementing pump comprises a pump body and a driving mechanism for providing pumping power to the pump body, the driving mechanism is arranged in a hydraulic system of the to-be-oil-supplemented device, and the driving mechanism drives the pump body to pump oil supplementing by introducing hydraulic oil in the hydraulic system.

[0006] Further, the power source inlet of the driving mechanism is communicated with a hydraulic oil source of the to-be-oil-supplemented device, and the power source outlet of the driving mechanism is communicated with a hydraulic oil tank of the to-be-oil-supplemented device.

[0007] Further, the driving mechanism comprises a hydraulic motor, the hydraulic motor is respectively communicated with the power source inlet and the power source outlet, and the hydraulic motor and the pump body are drivingly connected.

[0008] Further, the oil supplementing system comprises: a power source valve arranged between the hydraulic oil source and the power source inlet; and an oil supplementing controller signal-connected with the power source valve and the oil supplementing pump.

[0009] Further, the oil supplementing system comprises a negative pressure sensor, the detection end of the negative pressure sensor is located between the oil supplementing source and the oil supplementing pump, and the negative pressure sensor is signal-connected with the oil supplementing controller.

[0010] Further, the oil supplementing system comprises a flow meter arranged between the oil supplementing pump and the oil supplementing position, the flow meter being configured to count the oil supplementing flow entering the oil supplementing position, and the flow meter being in signal connection with the oil supplementing controller.

[0011] Further, the oil supplementing system comprises a distribution valve arranged between the oil supplementing pump and the oil supplementing position, and the distribution valve being in signal connection with the oil supplementing controller.

[0012] Further, the distribution valve comprises a plurality of control valves, and the oil supplementing position comprises a plurality of oil supplementing positions, and the plurality of control valves are in one-to-one signal connection with the plurality of oil supplementing positions respectively.

[0013] Further, the oil supplementing system comprises a pressure sensor arranged in a distribution cavity of the distribution valve, the pressure sensor being configured to detect the oil supplementing pressure in the distribution cavity, and the pressure sensor being in signal connection with the oil supplementing controller.

[0014] A coal mining machine, the coal mining machine comprising the oil supplementing system.

[0015] Advantages:

[0016] 1. In the oil supplementing system in the embodiment, the hydraulic oil in the hydraulic system of the oil supplementing equipment is introduced, the liquid pressure of the hydraulic oil is converted into mechanical energy by the driving mechanism to provide pumping power for the hydraulic pump, the oil supplementing pump is automatically driven, and the oil supplementing process of the oil supplementing position is automatically completed. The oil supplementing system has remarkable oil supplementing effect in the oil supplementing process, avoids the interference of external environment and driving power source and other factors in the oil supplementing process, realizes the automatic oil supplementing process, improves the speed and convenience of oil supplementing, and the oil supplementing process is safe and reliable. The oil supplementing system in the embodiment is applied to the coal mining machine, and the oil supplementing process of the gear box and other structures of the coal mining machine can be successfully completed in the working face, and the technical problem that the oil supplementing mode of the gear box of the coal mining machine is limited in the related art and affects the oil supplementing efficiency of the gear box is solved.

[0017] 2. When the oil supplementing oil source is insufficient, the pump end of the oil supplementing pump is vacuumed, the negative pressure sensor detects the negative pressure value in time, the negative pressure sensor feeds back the feedback signal to the oil supplementing controller in time, the oil supplementing controller controls the oil supplementing system to stop working, the hydraulic oil oil source stops oil supply and the oil supplementing pump stops running, and the situation that the oil supplementing pump is vacuumed and burned is avoided.

[0018] 3. The distribution valve is arranged to distribute the oil supplementing, and the different oil supplementing positions can be "one-to-one" oil injected. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the oil supplementing system in the embodiment of the utility model;

[0020] Figure 2 is a signal feedback schematic diagram of the oil supplementing system used in the embodiment of the present application.

[0021] Among them, the above-mentioned drawings include the following reference signs:

[0022] 10, the part to be supplemented with oil; 1, the oil supplementing oil source; 2, the negative pressure sensor; 3, the hydraulic oil tank; 4, the oil supplementing pump; 41, the pump body; 42, the driving mechanism; 5, the hydraulic oil source; 6, the pressure sensor; 7, the distribution valve; 71, the control valve; 8, the flow meter. DETAILED DESCRIPTION

[0023] In order to enable personnel in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the scope of protection of the present application.

[0024] According to the embodiment of the present application, an oil supplementing system and a coal mining machine are provided, please refer to Figures 1-2 , comprising: an oil supplementing oil source 1, the oil supplementing oil source 1 is used to provide oil supplementing to the part to be supplemented with oil 10 of the equipment to be supplemented with oil; an oil supplementing pump 4, the oil supplementing pump 4 is arranged between the oil supplementing oil source 1 and the part to be supplemented with oil 10, the oil supplementing pump 4 comprises a pump body 41 and a driving mechanism 42 for providing pumping power to the pump body 41, the driving mechanism 42 is arranged in the hydraulic system of the equipment to be supplemented with oil, and the driving mechanism 42 converts the liquid pressure of the hydraulic oil into mechanical energy by introducing the hydraulic oil into the hydraulic system, so as to provide pumping power for the oil supplementing pump 4, and automatically drive the oil supplementing pump 4, thereby automatically completing the oil supplementing process of the part to be supplemented with oil 10.

[0025] Through the above-mentioned arrangement, the hydraulic oil in the hydraulic system of the equipment to be supplemented with oil is introduced, the liquid pressure of the hydraulic oil is converted into mechanical energy by the driving mechanism 42, pumping power is provided for the oil supplementing pump 4, and the oil supplementing pump 4 is automatically driven, so as to automatically complete the oil supplementing process of the part to be supplemented with oil 10. The oil supplementing effect is remarkable in the oil supplementing process by using the above-mentioned oil supplementing system, and the oil supplementing process is not disturbed by many factors such as external environment and driving power source, so as to realize automatic oil supplementing process, improve the speed and convenience of oil supplementing, and make the oil supplementing process safe and reliable. The oil supplementing system in the embodiment is applied to the coal mining machine, and the oil supplementing process of the gear box structure of the coal mining machine can also be smoothly completed in the working face, so as to solve the technical problem that the oil supplementing mode of the gear box of the coal mining machine is limited in the related art, and the oil supplementing efficiency of the gear box is affected.

[0026] In the oil supplementing system of the present embodiment, please refer to Figure 1The power source inlet of the driving mechanism 42 is communicated with the hydraulic oil source 5 of the equipment to be replenished, and the power source outlet of the driving mechanism 42 is communicated with the hydraulic oil tank 3 of the equipment to be replenished. In this way, the driving mechanism is arranged between the hydraulic oil source 5 and the hydraulic oil tank 3, and when the equipment to be replenished is replenished, the hydraulic oil circulation process can be completed at the same time while the driving power is obtained by the flow of the hydraulic oil.

[0027] In the oil replenishing system of the embodiment, referring to Figure 1 The driving mechanism 42 comprises a hydraulic motor, which is communicated with the power source inlet and the power source outlet respectively, and is drivingly connected with the pump body 41. In this way, the hydraulic pressure energy provided by the hydraulic oil is converted into mechanical energy of the pump body 41 by the hydraulic motor.

[0028] In some embodiments, the oil replenishing pump 4 is integrated by a hydraulic motor and a gear pump, the hydraulic motor and the gear pump are synchronously operated by an internal connecting member, and a safety valve is integrated at the pump end to limit the pressure and protect the gear pump.

[0029] In the oil replenishing system of the embodiment, referring to Figure 1 The oil replenishing system comprises a power source valve arranged between the hydraulic oil source 5 and the power source inlet, and an oil replenishing controller signal connected with the power source valve and the oil replenishing pump 4 respectively. In this way, when the oil replenishing is started, the oil replenishing controller controls the oil replenishing system to start working, controls the power source valve to be conducted, and controls the hydraulic oil source 5 to flow to the hydraulic oil tank 3, so that the hydraulic pressure of the hydraulic oil is obtained, the hydraulic motor converts the hydraulic pressure energy provided by the hydraulic oil into mechanical energy of the pump body 41, and the pump body 41 starts to pump the oil replenishing. When the oil replenishing is stopped, the oil replenishing controller controls the oil replenishing system to stop working, that is, controls the power source valve to be cut off, and controls the oil replenishing pump 4 to stop working.

[0030] It can be understood that during the normal working process of the equipment to be replenished, the oil replenishing process will not be performed, at this time, the hydraulic oil source 5 flows to the hydraulic oil tank 3, but the oil replenishing pump 4 will not start to work.

[0031] In the oil replenishing system of the embodiment, referring to Figure 1 The oil replenishing system comprises a negative pressure sensor 2, the detection end of the negative pressure sensor 2 is located between the oil replenishing source 1 and the oil replenishing pump 4, and the negative pressure sensor 2 is signal connected with the oil replenishing controller. By arranging the negative pressure sensor 2, when the oil replenishing source 1 is insufficient, the pump end of the oil replenishing pump 4 will be vacuumed, at this time, the negative pressure sensor 2 will detect the negative pressure value, and the negative pressure sensor 2 will feedback the feedback signal to the oil replenishing controller in time, so that the oil replenishing controller controls the oil replenishing system to stop working, controls the hydraulic oil source 5 to stop supplying oil and controls the oil replenishing pump 4 to stop working, thereby avoiding the situation that the oil replenishing pump 4 is burned due to vacuuming.

[0032] It should be noted that the detection end of the negative pressure sensor 2 can be arranged at the oil inlet end of the hydraulic hose connected with the pump end of the oil supplement pump 4, or the detection end of the negative pressure sensor 2 can be arranged in the hydraulic hose before the oil supplement pump 4.

[0033] In the oil supplement system of the embodiment, referring to Figure 1 , the oil supplement system comprises a flow meter 8 arranged between the oil supplement pump 4 and the oil supplement site 10, the flow meter 8 is used for counting the oil supplement flow into the oil supplement site 10, and the flow meter 8 is signal connected with the oil supplement controller. During the oil supplement process, the flow meter 8 can display the oil supplement amount in real time, and the oil supplement amount can be used to judge the oil supplement condition of the oil supplement site 10, so as to avoid the over-supplement or under-supplement of the oil supplement.

[0034] In the oil supplement system of the embodiment, referring to Figure 1 , the oil supplement system comprises a distribution valve 7 arranged between the oil supplement pump 4 and the oil supplement site 10, and the distribution valve 7 is signal connected with the oil supplement controller. By arranging the distribution valve 7, the conduction or cut-off of the oil supplement pipeline can be controlled.

[0035] In the oil supplement system of the embodiment, referring to Figure 1 , the distribution valve 7 comprises a plurality of control valves 71, and the oil supplement site 10 comprises a plurality of oil supplement sites, and the plurality of control valves 71 are in one-to-one communication with the different oil supplement sites 10. In this way, the oil supplement is branched, and the “one-to-one” oil supplement of the different oil supplement sites 10 can be realized.

[0036] When the oil supplement system in the embodiment is applied to the coal mining machine, the gear oil of each gear box in the coal mining machine can be supplemented, and the plurality of oil supplement sites 10 include but are not limited to the following sites: left rocker arm low-speed gear box, left rocker arm high-speed gear box, left traction gear box, right rocker arm low-speed gear box, right rocker arm high-speed gear box, and right traction gear box.

[0037] In the oil supplement system of the embodiment, referring to Figure 1 , the oil supplement system comprises a pressure sensor 6 arranged in a distribution cavity of the distribution valve 7, the pressure sensor 6 is used for detecting the oil supplement pressure in the distribution cavity, and the pressure sensor 6 is signal connected with the oil supplement controller. If the gear oil is supplemented, the control valves 71 in the distribution valve 7 are not opened, at this time, the pump-out pressure of the oil supplement pump 4 sharply rises, when the set value of the pressure sensor 6 is reached, the pressure sensor 6 feeds back the signal to stop the oil supply of the hydraulic oil source 5 and to stop the operation of the oil supplement pump 4, so as to achieve the purpose of protecting the system.

[0038] In the oil supplement system in the embodiment, referring to Figures 1-2The oil supplementing process is as follows: when it is needed to add oil such as lubricating oil to the oil supplementing site 10, first, the hydraulic rubber tube connected with the pump end of the oil supplementing pump 4 is inserted into the oil supplementing oil source 1 (it is ensured that the oil source of the oil supplementing oil source 1 is sufficient), and the control valve 71 on the distribution valve 7 corresponding to the oil supplementing site 10 is opened, the hydraulic oil oil source 5 is a device for providing the hydraulic oil oil source for the hydraulic system of the oil supplementing equipment itself, the hydraulic oil in the hydraulic oil oil source 5 returns to the hydraulic oil tank 3 (the hydraulic oil tank of the oil supplementing equipment itself) through the driving mechanism 42 in the oil supplementing pump 4, and the liquid pressure of the hydraulic oil promotes the operation of the oil supplementing pump 4. When the oil supplementing pump 4 starts to operate, the pump body 41 sucks oil from the oil supplementing oil source 1, passes through the negative pressure sensor 2, and then is pumped out by the pump body 41 to the distribution valve 7 after passing through the flow meter 8, and the oil supplementing site 10 is injected by the distribution valve 7.

[0039] In the coal mining machine in the embodiment, the coal mining machine comprises the above oil supplementing system.

[0040] In the coal mining machine in the embodiment, the oil supplementing system introduces the hydraulic oil in the hydraulic system of the coal mining machine, converts the liquid pressure of the hydraulic oil into mechanical energy through the driving mechanism 42, provides pumping power for the oil supplementing pump 4, automatically drives the oil supplementing pump 4, and thus automatically completes the oil supplementing process of the gear box and other parts of the coal mining machine. The oil supplementing system has remarkable oil supplementing effect in the gear box oil supplementing process, avoids the interference of the working face and the driving power source and other factors in the oil supplementing process, realizes the automatic oil supplementing process of the gear box, improves the speed and convenience of oil supplementing, and the oil supplementing process is safe and reliable. The oil supplementing system in the embodiment can also smoothly complete the oil supplementing process of the gear box and other structures of the coal mining machine in the working face, and solves the technical problem that the oil supplementing mode of the gear box of the coal mining machine is limited in the related art, which affects the oil supplementing efficiency of the gear box.

[0041] In the coal mining machine in the embodiment, by adopting the above oil supplementing system, the oil supplementing system circuit is simple, the oil supplementing effect is remarkable, is not affected by the working face condition, and is safe and reliable.

[0042] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and in the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0043] Optionally, the specific examples in the embodiments can refer to the examples described in the above embodiments, and the embodiments will not be described here again.

[0044] The serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0045] In the above embodiments of the present application, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0046] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. An oil replenishment system, characterized by, The oil supplementing system comprises: An oil supplementing oil source (1) for providing oil supplementing to an oil supplementing site (10) of an oil supplementing device; An oil supplementing pump (4) arranged between the oil supplementing oil source (1) and the oil supplementing site (10), the oil supplementing pump (4) comprising a pump body (41) and a driving mechanism (42) for providing pumping power to the pump body (41), the driving mechanism (42) being arranged in a hydraulic system of the oil supplementing device, the driving mechanism (42) driving the pump body (41) to pump oil supplementing by introducing hydraulic oil into the hydraulic system.

2. The oil replenishment system of claim 1, wherein A power source inlet of the driving mechanism (42) is in communication with a hydraulic oil source (5) of the oil supplementing device, and a power source outlet of the driving mechanism (42) is in communication with a hydraulic oil tank (3) of the oil supplementing device.

3. The oil replenishment system of claim 2, wherein The driving mechanism (42) comprises a hydraulic motor in communication with the power source inlet and the power source outlet respectively, and the hydraulic motor is drivingly connected with the pump body (41).

4. The oil replenishment system of claim 2, wherein The oil supplementing system comprises: A power source valve arranged between the hydraulic oil source (5) and the power source inlet; An oil supplementing controller in signal connection with the power source valve and the oil supplementing pump (4) respectively.

5. The oil replenishment system of claim 4, wherein The oil supplementing system comprises a negative pressure sensor (2) with a detection end located between the oil supplementing oil source (1) and the oil supplementing pump (4), and the negative pressure sensor (2) is in signal connection with the oil supplementing controller.

6. The oil replenishment system of claim 4, wherein The oil supplementing system comprises a flow meter (8) arranged between the oil supplementing pump (4) and the oil supplementing site (10), the flow meter (8) being used for counting the oil supplementing flow into the oil supplementing site (10), and the flow meter (8) is in signal connection with the oil supplementing controller.

7. The oil replenishment system of claim 4, wherein The oil supplementing system comprises a distribution valve (7) arranged between the oil supplementing pump (4) and the oil supplementing site (10), and the distribution valve (7) is in signal communication with the oil supplementing controller.

8. The oil replenishment system of claim 7, wherein The distribution valve (7) comprises a plurality of control valves (71), and the oil supplementing sites (10) are also a plurality, and each of the control valves (71) is in one-to-one communication with a different oil supplementing site (10).

9. The oil replenishment system of claim 7, wherein The oil supplementing system comprises a pressure sensor (6) arranged in a distribution cavity of the distribution valve (7), the pressure sensor (6) being used for detecting the oil supplementing pressure in the distribution cavity, and the pressure sensor (6) is in signal connection with the oil supplementing controller.

10. A coal mining machine characterized by, The coal mining machine comprises the oil supplementing system according to any one of claims 1 to 9.

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