Oil filtering mechanism of hydraulic system of coal mining equipment

Abstract

The utility model discloses an oil filtering mechanism for a hydraulic system of coal mining equipment, which comprises a tank body, an oil inlet pipe and an oil outlet pipe are symmetrically welded on the circumferential outer wall of the tank body, two through grooves are arranged at the top of the tank body, a cross-shaped mounting frame is welded in the tank body, and first sliding grooves are arranged on two sides of the cross-shaped mounting frame. The second T-shaped pull rod can be pulled upwards, the clamping block is driven to be separated from the clamping groove at the same time, and the filter screen is pulled out at the moment, so that when the filter screen is replaced or disassembled and maintained, filter equipment does not need to be stopped, the downtime of a hydraulic system is shortened, and the efficiency of the filter equipment is improved; moreover, the filtered residues can be precipitated in a space on one side of the precipitation box, the residues are cleaned in a concentrated manner, the convenience of the equipment is improved, the amount of the precipitates can be judged through a visual observation window in cooperation with a liquid level indicator, the precipitation box can be dismounted regularly, and the rapidness of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter mechanism technical field especially relates to a coal mine equipment hydraulic system oil filter mechanism. BACKGROUND

[0002] The underground hydraulic system of coal mine is the power core of key equipment such as fully mechanized mining unit and hydraulic support, and the oil cleanliness thereof directly influences system reliability. Due to the poor working condition (high dust, strong vibration, limited space) of underground coal mine, the hydraulic oil is easily eroded by pollutants such as coal powder and metal debris, leading to faults such as valve group sticking and pump body wear, and most of them adopt filter mechanism to filter hydraulic oil.

[0003] Through the search, the announcement is CN211975581U3, a kind of hydraulic system oil filter mechanism, oil is discharged by oil drum and flows into filter barrel through oil inlet, oil will be filtered by filter 5, filtered oil will enter centrifugal groove, centrifugal groove rotates, under the action of centrifugal force, small particles and dust in oil are attached to the inner wall of centrifugal groove by centrifugal force, however, the above-mentioned device needs to replace filter screen or disassemble and repair filter screen when filtering, needs to stop using filter equipment, thereby leading to the increase of hydraulic system downtime, reduces the efficiency of filter equipment. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a coal mine equipment hydraulic system oil filter mechanism.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of coal mine equipment hydraulic system oil liquid filtering mechanism, including tank, the circumferential outer wall of the tank is symmetrically welded with oil inlet pipe and oil outlet pipe, the top of the tank is equipped with two through slots, the tank is welded with cross mounting frame, the two sides of cross mounting frame are equipped with first sliding slot, two The first sliding slot is slidably connected with filter screen, and filter screen slides in through slot, the two sides of two filter screens are welded with two first sliding blocks, and the first sliding block is slidably connected in the first sliding slot, one end of filter screen is fixed with limit plate by bolt, the side of limit plate is equipped with multiple clamping grooves, the top of the tank is fixed with multiple housings by bolt, the circumferential outer wall of multiple housings is slidably connected with ring and clamping block at position from top to bottom, and clamping block is inserted into clamping groove, the top of clamping block and the bottom of ring are in contact, the side of ring is welded with spring, and spring is fixed with housing, the circumferential outer wall of multiple housings is equipped with two second sliding slots, and second sliding block is slidably connected in second sliding slot, and the two ends of second sliding block are fixed with clamping block by penetrating housing, the inside of cross mounting frame is divided into first chamber and second chamber, and first chamber and second chamber correspond with filter screen respectively, the side of second sliding block is welded with second T-shaped pull rod.

[0007] As a further scheme of the utility model, the oil inlet pipe and the oil outlet pipe are divided into main flow pipes and branch flow pipes, the circumferential outer wall of the oil inlet pipe located in the main flow pipe is fixed with a pressure gauge by bolts, and the circumferential outer wall of the oil inlet pipe and the oil outlet pipe located in the branch flow pipes are fixed with on-off valves by bolts.

[0008] As a further scheme of the utility model, one side of the filter screen is bonded with a sealing rubber block, one end of the sealing rubber block is inserted into the through slot, and one end of the filter screen is welded with a first T-shaped pull rod.

[0009] As a further scheme of the utility model, the bottom end of the cross mounting frame is welded with a threaded sleeve, a threaded block is threadedly connected in the threaded sleeve, the side of the threaded block is welded with a sediment box, and the side of the sediment box is bonded with a sealing gasket.

[0010] As a further scheme of the utility model, the circumferential outer wall of the sediment box is provided with a visible observation window, and multiple liquid level indicators are fixed on the circumferential outer wall of the sediment box by bolts.

[0011] As a further scheme of the utility model, a baffle is welded in the inside of the sediment box, and the inside of the sediment box is conical, the baffle divides the inside of the sediment box into two spaces, and the two spaces are not communicated.

[0012] As a further scheme of the utility model, the first chamber and the second chamber are communicated with the two spaces in the sediment box respectively.

[0013] The utility model has the advantages that:

[0014] 1. The utility model discloses a clamping block, the second T type pull rod is pulled up, and simultaneously drives the clamping block to separate from the clamping groove, at this time, the filter screen is pulled out, and the new filter screen is put in, thereby meet the replacement filter screen or the filter screen is disassembled and maintained, need not stop using the filter equipment, reduce the downtime of hydraulic system, increase the efficiency of filter equipment.

[0015] 2. The utility model discloses a sediment box, the residue filtered by the filter screen can be deposited in the one side space of the sediment box, facilitate the centralized cleaning of residue, increase the convenience of equipment.

[0016] 3. The utility model discloses a visual observation window, and the staff can judge the amount of sediment through the visual observation window with the liquid level indicating meter, regularly disassembles the sediment box, and increases the quickness of equipment.

[0017] 4. The utility model discloses a sealing rubber block, when the filter screen is put into the jar body, the sealing rubber block can be located in the through groove at the top of the jar body, avoid the leakage of hydraulic oil from the through groove during the filtration, and increase the stability of equipment. DRAWINGS

[0018] Figure 1 A kind of coal mine equipment hydraulic system oil filtering mechanism's three-dimensional structure schematic view is proposed for the utility model;

[0019] Figure 2 A kind of coal mine equipment hydraulic system oil filtering mechanism's section structure schematic view is proposed for the utility model;

[0020] Figure 3 A kind of coal mine equipment hydraulic system oil filtering mechanism's local enlarged structure schematic view is proposed for the utility model.

[0021] Figure 4 A kind of coal mine equipment hydraulic system oil filtering mechanism's local section structure schematic view is proposed for the utility model.

[0022] Figure 5 A kind of coal mine equipment hydraulic system oil filtering mechanism's filter screen enlarged structure schematic view is proposed for the utility model.

[0023] Figure 6 A kind of coal mine equipment hydraulic system oil filtering mechanism's local partial structure schematic view is proposed for the utility model.

[0024] In the figure: 1, tank body; 2, oil inlet pipe; 3, pressure gauge; 4, first T-shaped pull rod; 5, second T-shaped pull rod; 6, oil outlet pipe; 7, sediment box; 8, filter screen; 9, threaded sleeve; 10, threaded block; 11, baffle; 12, liquid level indicator; 13, visual observation window; 14, first sliding groove; 15, cross mounting frame; 16, first chamber; 17, second chamber; 18, first sliding block; 19, sealing rubber block; 20, clamping groove; 21, shell; 22, spring; 23, second sliding groove; 24, circular ring; 25, second sliding block; 26, clamping block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The described embodiments are only some 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 skilled in the art without creative work fall within the scope of the present application.

[0026] Reference Figures 1-6The utility model relates to a kind of coal mine equipment hydraulic system oil liquid filtering mechanism, including tank body 1, the circumferential outer wall of tank body 1 is symmetrically welded with oil inlet pipe 2 and oil outlet pipe 6, two through slots are set in the top of tank body 1, cross mounting frame 15 is welded in tank body 1, two sides of cross mounting frame 15 are all set with first sliding slot 14, two first sliding slots 14 are all slidably connected with filter screen 8, and filter screen 8 slides in through slot, two sides of two filter screens 8 are welded with two first sliding blocks 18, multiple first sliding blocks 18 slide in first sliding slot 14, one end of filter screen 8 is fixed with limit plate by bolt, multiple clamping grooves 20 are set in the side of limit plate, the top of tank body 1 is fixed with multiple housings 21 by bolt, the circumferential outer wall of multiple housings 21 is slidably connected with circular ring 24 and clamping block 26 at position above and below, and clamping block 26 is inserted into clamping groove 20, the top of clamping block 26 and the bottom of circular ring 24 are in contact, spring 22 is welded on one side of circular ring 24, and spring 22 is fixed with housing 21, two second sliding slots 23 are set in the circumferential outer wall of multiple housings 21, second sliding block 25 is slidably connected in second sliding slot 23, and two ends of second sliding block 25 pass through housing 21 and are fixed with clamping block 26, cross mounting frame 15 divides the inside of tank body 1 into first chamber 16 and second chamber 17, and first chamber 16 and second chamber 17 correspond with filter screen 8 respectively, second T type pull rod 5 is welded on one side of second sliding block 25, when needing to replace or repair one side filter screen 8 when using, open the switch valve on the same side shunt pipe of oil inlet pipe 2 and oil outlet pipe 6, then close another same side switch valve, second T type pull rod 5 is pulled upwards, so that second sliding block 25 moves along the groove of second sliding slot 23, simultaneously drives clamping block 26 to disengage from clamping groove 20, since second sliding slot 23 is L-shaped, clamping block can be rotated 90 degrees, first T type pull rod 4 is pulled at this time, and filter screen 8 is pulled out along the groove of first sliding slot 14, to meet the replacement filter screen or the disassembly maintenance of filter screen, without stopping using filtering equipment, reduce hydraulic system downtime, increase the efficiency of filtering equipment.

[0027] The utility model discloses, oil inlet pipe 2 and oil outlet pipe 6 all divide into main stream pipe and shunt pipe, and oil inlet pipe 2 is located the circumferential outer wall of main stream pipe and is fixed with pressure gauge 3 through bolt, can judge the state of filter screen or the pressure of pipeline through the index of pressure gauge 3, and oil inlet pipe 2 and oil outlet pipe 6 are located the circumferential outer wall of shunt pipe and are all fixed with switch valve through bolt, can control the switch of shunt pipe through switch valve, and one side of filter screen 8 is bonded with sealing rubber block 19, and one end of sealing rubber block 19 inserts into through slot, when filter screen 8 is put into jar body 1, sealing rubber block 19 will be located in the through slot of jar body 1 top, avoids when filtering, hydraulic oil leaks from through slot, increases the stability of equipment, and one end of filter screen 8 is welded with first T type pull rod 4, and it is convenient to pull out filter screen 8, the bottom end of cross installation frame 15 is welded with threaded sleeve 9, and threaded sleeve 9 is screwly connected with threaded block 10, and one side of threaded block 10 is welded with sediment box 7, and it is convenient to dismount sediment box 7, and one side of sediment box 7 is bonded with sealing pad, prevents hydraulic oil from leaking, and the circumferential outer wall of sediment box 7 is equipped with visual observation window 13, and the circumferential outer wall of sediment box 7 is fixed with a plurality of liquid level indicator 12 through bolt, and staff can judge the amount of sediment through visual observation window and liquid level indicator, and regularly dismounting sediment box increases the quickness of equipment, and the inside of sediment box 7 is welded with baffle 11, and the inside of sediment box 7 is conical, and the residue is more easily fallen to the bottom of sediment box, and baffle 11 divides the inside of sediment box 7 into two spaces, and two spaces are not intercommunicated, and first chamber 16 and second chamber 17 are communicated with the two spaces in the inside of sediment box 7 respectively, can divide sediment box 7 into two spaces, and correspond to different chambers respectively, and can judge the filtering effect of different chambers.

[0028] Working principle: the filter mechanism acts on the oil transmission between the oil tank and the oil pressure equipment, when the hydraulic oil needs to be filtered, the oil inlet pipe 2 is connected to the oil tank, the oil outlet pipe 6 is connected to the oil pressure equipment, the switch valve on the same side of the oil inlet pipe 2 and the oil outlet pipe 6 is opened, at this time the hydraulic oil flows from the first chamber 16 or the second chamber 17 and passes through the filter screen 8 to enter the oil outlet pipe 6, at this time the residue filtered by the filter screen 8 is deposited in the space on one side of the sediment box 7, the worker can judge the amount of sediment through the visual observation window 13, the sediment box 7 is regularly disassembled, when one side of the filter screen 8 needs to be replaced or repaired, the switch valve on the same side of the oil inlet pipe 2 and the oil outlet pipe 6 is opened, and the switch valve on the other side is closed, the second T-shaped pull rod 5 is pulled upwards, the second sliding block 25 moves along the groove of the second sliding groove 23, and the clamping block 26 is driven to be separated from the clamping groove 20, since the second sliding groove 23 is L-shaped, the clamping block can be rotated by 90 degrees, at this time the first T-shaped pull rod 4 is pulled to pull out the filter screen 8 along the groove of the first sliding groove 14, the new filter screen 8 is put in, the second T-shaped pull rod 5 is rotated by 90 degrees, and the second T-shaped pull rod 5 is loosened, since the circular ring 24 is located on the top of the clamping block 26, and the spring 22 is welded on one side of the circular ring 24, the clamping block 26 moves along the second sliding groove 23 under the elastic force of the spring 22, and the clamping block 26 is tightly inserted into the clamping groove 20, so that when the filter screen is replaced or disassembled and repaired, the filter equipment does not need to be stopped, the hydraulic system downtime is reduced, and the efficiency of the filter equipment is increased.

[0029] In addition, although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic system oil filtration mechanism for coal mining equipment, comprising a tank (1), characterized in that, The tank body (1) is symmetrically and fixedly connected to an oil inlet pipe (2) and an oil outlet pipe (6) on its outer circumference. The top of the tank body (1) has two through slots. A cross mounting bracket (15) is fixedly connected inside the tank body (1). A first sliding groove (14) is provided on both sides of the cross mounting bracket (15). A filter screen (8) is slidably connected in both of the first sliding grooves (14), and the filter screen (8) slides in the through slots. Two first sliders (18) are fixedly connected on both sides of the two filter screens (8). Multiple first sliders (18) slide in the first sliding grooves (14). A limiting plate is fixedly connected to one end of the filter screen (8). Multiple slots (20) are provided on one side of the limiting plate. Multiple shells (21) are fixedly connected to the top of the tank body (1). The outer circumferences of the multiple shells (21) slide in one up and one down positions. A ring (24) and a locking block (26) are connected, and the locking block (26) is inserted into the locking slot (20). The top of the locking block (26) is in contact with the bottom of the ring (24). A spring (22) is fixedly connected to one side of the ring (24), and the spring (22) is fixed to the housing (21). Two second sliding grooves (23) are opened on the outer circumference of the multiple housings (21). A second slider (25) is slidably connected in the second sliding groove (23), and the two ends of the second slider (25) pass through the housing (21) and are fixed to the locking block (26). The cross mounting bracket (15) divides the interior of the tank (1) into a first chamber (16) and a second chamber (17), and the first chamber (16) and the second chamber (17) are respectively equipped with a filter screen (8). A second T-shaped pull rod (5) is fixedly connected to one side of the second slider (25).

2. The hydraulic system oil filtration mechanism for coal mine equipment according to claim 1, characterized in that, The oil inlet pipe (2) and the oil outlet pipe (6) are both divided into a main pipe and a branch pipe. The oil inlet pipe (2) is fixedly connected to the outer circumference of the main pipe with a pressure gauge (3). The oil inlet pipe (2) and the oil outlet pipe (6) are both fixedly connected to the outer circumference of the branch pipe with a switch valve.

3. The hydraulic system oil filtration mechanism for coal mine equipment according to claim 1, characterized in that, A sealing rubber block (19) is fixedly connected to one side of the filter screen (8), and one end of the sealing rubber block (19) is inserted into the through groove. A first T-shaped pull rod (4) is fixedly connected to one end of the filter screen (8).

4. The hydraulic system oil filtration mechanism for coal mine equipment according to claim 1, characterized in that, The bottom end of the cross mounting bracket (15) is fixedly connected to a threaded sleeve (9), and a threaded block (10) is threadedly connected inside the threaded sleeve (9). A sedimentation box (7) is fixedly connected to one side of the threaded block (10), and a sealing gasket is fixedly connected to one side of the sedimentation box (7).

5. The hydraulic system oil filtration mechanism for coal mine equipment according to claim 4, characterized in that, The sedimentation box (7) has a viewing window (13) on its outer circumference, and multiple liquid level indicators (12) are fixedly connected to the outer circumference of the sedimentation box (7).

6. The hydraulic system oil filtration mechanism for coal mine equipment according to claim 5, characterized in that, The sedimentation box (7) is fixedly connected to a baffle (11), and the interior of the sedimentation box (7) is conical. The baffle (11) divides the interior of the sedimentation box (7) into two spaces, and the two spaces are not interconnected.

7. The hydraulic system oil filtration mechanism for coal mine equipment according to claim 6, characterized in that, The first chamber (16) and the second chamber (17) are respectively connected to two spaces inside the sedimentation box (7).

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