Hydraulic propulsion oil distribution slewing device

Abstract

The utility model belongs to the technical field of coal mining, particularly relates to a hydraulic propulsion oil distribution slewing device, and aims to solve the problem that impurities, dust and the like enter a propulsion drill rod along with hydraulic oil, the hydraulic propulsion oil distribution slewing device comprises a connecting end, one end of the connecting end is connected with the propulsion drill rod, and an installation shell is fixed to the outer wall of the connecting end. The connecting plate drives the mounting frame to penetrate into the mounting shell and is fixed through the fixing bolts, so that disassembly and assembly are convenient, the coarse filter screen is limited into the mounting frame through the limiting block, the limiting block is of a T-shaped structure, the coarse filter screen is borne and prevented from being attached to the fine filter screen, and the double-layer filtering effect can be achieved in cooperation with the fine filter screen; impurities, dust and the like are prevented from entering hydraulic oil and entering a propelling drill rod to cause influences, the interior of the mounting frame is divided into two spaces through the partition block to correspond to the two hydraulic heads, accordingly, circulation can be formed through one-out and one-in, and the sealing performance is improved through the sealing gasket.

Description

Technical Field

[0001] The utility model relates to a hydraulic propulsion drill rod rotating device, in particular to a hydraulic propulsion oil distribution rotating device, belonging to the technical field of coal mining. Background Art

[0002] Mechanical cavitation is a technology used in coal mining. It uses special mechanical equipment to create caves or holes in coal seams to improve the permeability of coal seams, improve gas extraction efficiency, reduce gas concentration, and thus reduce the risk of gas explosions to ensure mine safety. In the mechanical cavitation process, the hydraulic propulsion drill rod of mechanical cavitation equipment (such as variable-diameter mechanical cavitation device) is used to create caves and expand holes in the coal seams to form caves with larger diameters.

[0003] In the prior art, the hydraulic propulsion drill rod of the mechanical hole making equipment is provided with two hydraulic heads. The hydraulic oil enters one set of hydraulic heads through a conduit and flows into the propulsion drill rod. Then, the hydraulic oil is circulated and discharged through another set of hydraulic heads, thereby forming a hydraulic circulation effect and providing rotational force for the propulsion drill rod.

[0004] However, in the implementation of relevant technologies, it was found that in the existing technical solution, the hydraulic oil is circulated through two hydraulic heads, but during the circulation process, some dust and impurities may be absorbed. If it is circulated and used continuously, it will remain or even accumulate inside the propulsion drill rod, causing corrosion or affecting its use over time. In view of this, a hydraulic propulsion oil distribution rotary device is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model provides a hydraulic propulsion oil distribution rotary device to solve the problem that the hydraulic oil may absorb some dust and impurities during circulation, and if it is continuously circulated and used, the dust and impurities will remain or even accumulate inside the propulsion drill rod, causing corrosion or affecting the use over time.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions: a hydraulic propulsion oil distribution rotary device, comprising a connection end, one end of which is connected to a propulsion drill rod, and an installation shell is fixed to the outer wall of the connection end, a hydraulic head is inserted into the top of the installation shell, and a filtering mechanism is arranged inside the installation shell;

[0007] The filtering mechanism includes a connecting plate, which is arranged at the front end of the mounting shell, and a fixing bolt is installed between the connecting plate and the mounting shell, the connecting plate is connected with a sealing gasket facing the outer wall of the mounting shell, and a mounting frame is embedded in the connecting plate, a partition block is fixed inside the mounting frame, limiting blocks are fixed on both sides of the interior of the mounting frame, and a coarse filter screen is slidably connected to the outer wall of the limiting block, and a fine filter screen is embedded in the inner bottom end of the mounting frame.

[0008] As a further solution of the utility model: the coarse filter screen forms a sliding structure between the limit block and the mounting frame, and the structure of the mounting frame is a U-shaped structure.

[0009] As a further solution of the utility model: a receiving mechanism is arranged below the fine filter mesh inside the installation shell, and the receiving mechanism includes a receiving bucket. The receiving bucket is fixed at the lower part of the interior of the installation shell, and a separation groove is opened inside the receiving bucket, and the inner bottom ends of the two separation grooves are both provided with flow holes.

[0010] As a further solution of the utility model: a placement groove is provided inside the partition block, and a sealing mechanism is provided inside the placement groove.

[0011] As a further solution of the utility model: the sealing mechanism includes a resistance block, the resistance block passes through the interior of the mounting groove, and a sliding block is fixed to one end of the resistance block located in the mounting groove, a support rod passes through the bottom end of the sliding block, and a spring is sleeved on the outside of one end of the support rod passing through the sliding block.

[0012] As a further solution of the utility model: the sealing mechanism also includes fitting blocks, which are fixed on both sides of the upper interior of the mounting shell, and a connecting block is provided at the top of the mounting frame at a position corresponding to the fitting block.

[0013] As a further solution of the utility model: the support rod is fixedly connected to the partition block, and a sliding structure is formed between the support rod and the spring.

[0014] The beneficial effects of the utility model are:

[0015] 1) The connecting plate drives the mounting frame to penetrate into the mounting shell and is fixed by fixing bolts for easy disassembly and assembly. The coarse filter enters the mounting frame through the limit block. The limit block is a T-shaped structure, which carries the coarse filter to avoid fitting with the fine filter. In combination with the fine filter, it can play a double-layer filtration role to prevent impurities and dust from entering the hydraulic oil and then entering the propulsion drill rod to cause an impact. The partition block separates two spaces in the mounting frame for corresponding two hydraulic heads, so that one in and one out can form a cycle, and the sealing gasket improves the sealing performance;

[0016] 2) The receiving bucket structure is consistent with the mounting frame and the partition block structure and fits each other, so that the hydraulic oil can be communicated with the propulsion drill rod through the flow hole opened in the separation tank, so that the hydraulic oil can form a circulation form;

[0017] 3) After the filter mechanism and the mounting shell are installed, the sliding block pushes the rubber resistance block under the push of the spring and fits on the top of the mounting shell, which can seal the flow process of the two hydraulic heads and cooperate with the support rod to avoid the deviation and distortion of the spring during the expansion and contraction process, thereby affecting the sealing effect. At the same time, the connecting block and the fitting block fit each other to avoid gaps inside the mounting shell that affect the circulation of hydraulic oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the receiving bucket structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the spring structure of the utility model.

[0022] In the figure: 1. connecting end; 2. pushing drill rod; 3. mounting shell; 4. hydraulic head; 5. filtering mechanism; 501. connecting plate; 502. fixing bolt; 503. mounting frame; 504. partition block; 505. fine filter screen; 506. coarse filter screen; 507. limiting block; 508. sealing gasket; 6. receiving mechanism; 601. receiving bucket; 602. separation groove; 603. flow hole; 7. placement groove; 8. sealing mechanism; 801. resistance block; 802. sliding block; 803. spring; 804. support rod; 805. connecting block; 806. fitting block. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1, as Figures 1 to 4As shown, a hydraulic propulsion oil distribution rotary device comprises a connecting end 1, one end of which is connected to a propulsion drill rod 2, a mounting shell 3 is fixed to the outer wall of the connecting end 1, a hydraulic head 4 is inserted into the top of the mounting shell 3, and a filtering mechanism 5 is arranged inside the mounting shell 3; the filtering mechanism 5 comprises a connecting plate 501, the connecting plate 501 is arranged at the front end of the mounting shell 3, a fixing bolt 502 is installed between the connecting plate 501 and the mounting shell 3, a sealing gasket 508 is connected to the connecting plate 501 facing the outer wall of the mounting shell 3, a mounting frame 503 is embedded in the connecting plate 501, a partition block 504 is fixed inside the mounting frame 503, limiting blocks 507 are fixed on both sides of the inside of the mounting frame 503, a coarse filter screen 506 is slidably connected to the outer wall of the limiting block 507, and the inner bottom end of the mounting frame 503 is provided with a sealing gasket 508. A fine filter 505 is embedded, and a coarse filter 506 forms a sliding structure with the mounting frame 503 through a limit block 507. The mounting frame 503 has a U-shaped structure; the connecting plate 501 drives the mounting frame 503 to penetrate into the mounting shell 3 and is fixed by fixing bolts 502 for easy disassembly and assembly. The coarse filter 506 is limited to enter the mounting frame 503 by the limit block 507. The limit block 507 is a T-shaped structure, which carries the coarse filter 506 to avoid fitting with the fine filter 505, and cooperates with the fine filter 505 to play a double-layer filtration to prevent impurities and dust from entering the hydraulic oil and then entering the propulsion drill rod 2 to cause an impact. The partition block 504 separates two spaces in the mounting frame 503 for corresponding to the two hydraulic heads 4, so that a circulation can be formed with one in and one out, and the sealing is improved by the sealing gasket 508.

[0025] Embodiment 2. In addition to all the technical features of Embodiment 1, this embodiment also includes: a receiving mechanism 6 is provided below the fine filter 505 inside the mounting shell 3, the receiving mechanism 6 includes a receiving bucket 601, the receiving bucket 601 is fixed at the lower part of the interior of the mounting shell 3, a separation groove 602 is provided inside the receiving bucket 601, and the inner bottom ends of the two separation grooves 602 are both provided with flow holes 603; the structure of the receiving bucket 601 is consistent with the structure of the mounting frame 503 and the partition block 504, and they fit together, so that the hydraulic oil that is convenient to circulate is connected with the thrust drill rod 2 through the flow holes 603 provided in the separation groove 602, thereby allowing the hydraulic oil to form a circulation form.

[0026] Embodiment 3, in addition to all the technical features of Embodiment 1, this embodiment also includes: a placement groove 7 is opened inside the partition block 504, a sealing mechanism 8 is arranged inside the placement groove 7, the sealing mechanism 8 includes a contact block 801, the contact block 801 passes through the interior of the placement groove 7, a sliding block 802 is fixed at one end of the contact block 801 located at the placement groove 7, a support rod 804 passes through the bottom end of the sliding block 802, a spring 803 is sleeved on the outside of one end of the support rod 804 passing through the sliding block 802, the sealing mechanism 8 also includes a fitting block 806, the fitting block 806 is fixed on both sides of the upper interior of the mounting shell 3, and the top of the mounting frame 503 corresponds to the fitting block 806. A connecting block 805 is provided at the position of the engaging block 806, the support rod 804 is fixedly connected to the partition block 504, and a sliding structure is formed between the support rod 804 and the spring 803; when the filter mechanism 5 and the mounting shell 3 are installed, the sliding block 802 pushes the rubber resistance block 801 under the push of the spring 803, and fits on the top of the mounting shell 3, which can seal the flow process of the two hydraulic heads 4, and cooperate with the support rod 804 to avoid the deviation and distortion of the spring 803 during the expansion and contraction process, thereby affecting the sealing effect. At the same time, the connecting block 805 and the fitting block 806 fit each other to avoid the formation of gaps inside the mounting shell 3 that affect the circulation of the hydraulic oil.

[0027] The two hydraulic heads 4 penetrate the connection end 1 and the mounting shell 3 to communicate with the push drill rod 2. The connecting plate 501, the mounting frame 503 and the fine filter 505 form a drawer, penetrate the mounting shell 3 and are fixed by the fixing bolts 502. Two spaces are separated by the partition block 504, which correspond to the two hydraulic heads 4 respectively, so that the hydraulic oil can be filtered through the fine filter 505 during the circulation process. At the same time, the coarse filter 506 slides into the mounting frame 503 through the limit block 507, which plays a double-layer filtering role and is convenient for disassembly and cleaning. The sealing performance is improved by the sealing gasket 508. The mounting frame 50 3 is fitted with the receiving bucket 601, and the hydraulic oil corresponding to the two hydraulic heads 4 is separated through the separation groove 602, and communicated with the push drill rod 2 through the flow hole 603 to form a circulation form. When the filter mechanism 5 is installed, the sliding block 802 is elastically pushed by the spring 803, so that the rubber material resistance block 801 passes through the installation groove 7 and resists on the top of the installation shell 3 to improve the air tightness, and cooperates with the support rod 804 to avoid the bending and deviation of the spring 803. The connection block 805 and the fitting block 806 are tightly fitted to avoid gaps and further improve the sealing performance.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains 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.

Claims

1. A hydraulic propulsion oil distribution rotary device, comprising a connection end (1), characterized in that: One end of the connection end (1) is connected to a propulsion drill rod (2), and a mounting shell (3) is fixed to the outer wall of the connection end (1), a hydraulic head (4) is inserted into the top end of the mounting shell (3), and a filtering mechanism (5) is arranged inside the mounting shell (3); The filtering mechanism (5) comprises a connecting plate (501), the connecting plate (501) being arranged at the front end of the mounting shell (3), and a fixing bolt (502) being installed between the connecting plate (501) and the mounting shell (3), the connecting plate (501) being connected to a sealing gasket (508) facing the outer wall of the mounting shell (3), and a mounting frame (503) being embedded in the interior of the connecting plate (501), a partition block (504) being fixed in the interior of the mounting frame (503), limiting blocks (507) being fixed on both sides of the interior of the mounting frame (503), and a coarse filter screen (506) being slidably connected to the outer wall of the limiting block (507), and a fine filter screen (505) being embedded in the bottom end of the interior of the mounting frame (503).

2. A hydraulic propulsion oil distribution rotary device according to claim 1, characterized in that: The coarse filter (506) forms a sliding structure with the mounting frame (503) via a limiting block (507), and the mounting frame (503) has a U-shaped structure.

3. A hydraulic propulsion oil distribution rotary device according to claim 1, characterized in that: A receiving mechanism (6) is provided below the fine filter screen (505) inside the installation shell (3), the receiving mechanism (6) comprising a receiving bucket (601), the receiving bucket (601) being fixed at the lower part of the interior of the installation shell (3), and a separation groove (602) is provided inside the receiving bucket (601), and a flow hole (603) is provided at the inner bottom end of each of the two separation grooves (602).

4. A hydraulic propulsion oil distribution rotary device according to claim 1, characterized in that: The interior of the partition block (504) is provided with a placement groove (7), and the interior of the placement groove (7) is provided with a sealing mechanism (8).

5. A hydraulic propulsion oil distribution rotary device according to claim 4, characterized in that: The sealing mechanism (8) comprises a resistance block (801), the resistance block (801) passes through the interior of the placement groove (7), and a sliding block (802) is fixed to one end of the resistance block (801) located in the placement groove (7), a support rod (804) passes through the bottom end of the sliding block (802), and a spring (803) is sleeved on the outside of one end of the support rod (804) passing through the sliding block (802).

6. A hydraulic propulsion oil distribution rotary device according to claim 4, characterized in that: The sealing mechanism (8) further comprises fitting blocks (806), wherein the fitting blocks (806) are fixed on both sides of the upper interior of the mounting shell (3), and a connection block (805) is provided at a position corresponding to the fitting block (806) at the top of the mounting frame (503).

7. The hydraulic propulsion oil distribution rotary device according to claim 5, characterized in that: The support rod (804) is fixedly connected to the partition block (504), and a sliding structure is formed between the support rod (804) and the spring (803).

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