Hydraulic supporting bracket for thin coal seam

Abstract

The utility model discloses a hydraulic support for a thin coal seam, and particularly relates to the technical field of hydraulic supports, which comprises a beam plate frame provided with a sliding cavity, an extension frame is slidably arranged in the sliding cavity, and hydraulic cylinders are symmetrically and fixedly mounted on the outer wall of one side of a mounting plate arranged on the beam plate frame. The output end of the hydraulic cylinder is fixedly installed on an extension plate arranged at the first end of the extension frame, and a baffle is fixedly installed at the end, located above the extension frame, of the beam plate frame. According to the hydraulic supporting support for the thin coal seam, the hydraulic cylinder pushes the extending frame to slide in the sliding cavity so as to achieve the extending and supporting effects, the baffle can shield and protect the portion between the end opening of the sliding cavity and the extending frame, and when the extending frame retracts into the sliding cavity, the scraping piece is attached to the top of the extending frame, so that the scraping piece is attached to the top of the extending frame. And therefore, the problem that the coal cinder scratches the inner wall of the sliding cavity and the top of the extension frame when entering the sliding cavity is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to technical field of hydraulic support, concretely relates to a thin coal seam hydraulic support support. BACKGROUND

[0002] The thin coal seam hydraulic support support is a support equipment specially designed for thin coal seam mining, and the main purpose is to improve safety and work efficiency.

[0003] According to patent announcement number CN212406772U, announcement date: 2021-01-26 discloses a kind of hydraulic adjusting support for thin coal seam intelligent mining, including roof beam, rotating block, second hydraulic telescopic rod, guide plate and connecting plate, the roof beam left end is equipped with front support beam, and roof beam right end is equipped with rotating shaft, and rotating shaft is connected with rear support plate, while rear support plate and roof beam are mutually pasted, the rotating block is connected with rear support plate, and rotating block is connected with first hydraulic telescopic rod, and first hydraulic telescopic rod is installed on bottom plate, the second hydraulic telescopic rod is installed on bottom plate, and second hydraulic telescopic rod is installed on roof beam, and bottom plate is equipped with rotating shaft, while rotating shaft is equipped with receiving plate, the guide plate is installed on bottom plate, and bottom plate bottom end is equipped with moving slider, and moving slider is connected with third hydraulic telescopic rod, the third hydraulic telescopic rod is installed on connecting plate, and connecting plate and moving slider are mutually pasted, and moving slider is equipped with mounting plate, while mounting plate is equipped with adjusting screw rod, the mounting plate bottom end is equipped with moving rod, and moving rod lower end is equipped with connecting spring, and connecting spring is connected with fixed sleeve, the fixed sleeve is installed on support seat, and support seat is connected with adjusting screw rod.

[0004] In the prior art including the above patent, the front support beam slides in the roof beam to use the telescopic function to make the front support beam and the roof beam support the coal seam in a wider range. However, in actual use, because there is a certain gap between the front support beam and the roof beam, when the front support beam slides in the roof beam, some fine coal slag or small stones deposited above the front support beam will be brought into the gap between the front support beam and the roof beam, and then the coal slag or small stones will scratch the paint film on the outer walls of the front support beam and the roof beam during the relative movement between the two, which will cause the equipment to be rusted earlier due to the scratches on the paint film in subsequent use. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a thin coal seam hydraulic support support to solve the above technical problems.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a thin coal seam hydraulic support support, including the beam plate frame with the slide cavity is set up on it, and the extension frame is arranged in the slide cavity and slides, the one side outer wall of the mounting plate set up on the beam plate frame is fixedly installed with the hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly installed on the extension plate set up on the first end of the extension frame, the end part of the beam plate frame above the extension frame is fixedly installed with the baffle, and the baffle is fixedly installed below with the scraping piece attached to the top of the extension frame.

[0007] As preferred, the scraping piece is provided with an arc-shaped taper surface relative to the outer wall of one side of the beam plate frame.

[0008] As preferred, the auxiliary roller attached to the bottom of the extension frame is arranged in the slide cavity and rotates symmetrically, and the support plate is fixedly installed on the second end of the extension frame, and the support plate is arranged with the cow eye wheel and rolls on the side of the inner wall of the slide cavity.

[0009] As preferred, the sealing rubber pad is fixedly installed on the support plate, and the exhaust cavity is set up on the beam plate frame and is communicated with the slide cavity, and one end of the exhaust cavity is towards the top of the extension frame.

[0010] As preferred, the conical air port towards the top of the extension frame is set up on one end of the extension frame, and the scraping piece is located on one side of the conical air port.

[0011] As preferred, the first one-way air valve is set up at the communication place of the slide cavity and the exhaust cavity, and the second one-way air valve is fixedly installed on the beam plate frame and is communicated with the slide cavity.

[0012] As preferred, the cleaning roller is arranged and rotates between the scraping piece and the conical air port on the baffle, and the cleaning roller is attached to the top of the extension frame.

[0013] As preferred, the large gear disc is fixedly installed on the shaft of the auxiliary roller, and the first small gear disc rotatingly arranged on the beam plate frame and the second small gear disc fixedly installed on the cleaning roller are mutually engaged, and the large gear disc and the first small gear disc are mutually engaged.

[0014] As preferred, the scraping piece is a wear-resistant rubber pad.

[0015] As preferred, the baffle is a stainless steel plate.

[0016] In the above technical scheme, the thin coal seam hydraulic support support provided by the utility model has the following beneficial effects: the extension frame is arranged in the slide cavity to extend and support, the baffle can shield and protect between the slide cavity port and the extension frame, when the extension frame is retracted in the slide cavity, the scraping piece is attached to the top of the extension frame to clean the coal dregs attached to the top of the extension frame, thereby reducing the problem that the coal dregs scratch the inner wall of the slide cavity and the top of the extension frame when entering the slide cavity. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 The beam slab frame overall structure schematic diagram provided by the present application embodiment is shown in the figure.

[0019] Figure 2 The beam slab frame partial structure schematic diagram provided by the present application embodiment is shown in the figure.

[0020] Figure 3 The beam slab frame cross section structure schematic diagram provided by the present application embodiment is shown in the figure.

[0021] Figure 4 The A place enlarged structure schematic diagram provided by the present application embodiment is shown in the figure.

[0022] Figure 5 The B place enlarged structure schematic diagram provided by the present application embodiment is shown in the figure.

[0023] Marked with the figure:

[0024] 1, beam slab frame; 2, baffle; 3, hydraulic cylinder; 4, first one-way air valve; 11, mounting plate; 12, exhaust cavity; 13, conical air port; 14, sliding cavity; 21, scraping piece; 22, arc conical surface; 23, cleaning roller; 31, extension plate; 32, extension frame; 33, support plate; 34, bull's eye wheel; 35, sealing rubber pad; 36, auxiliary roller; 37, large tooth disc; 38, first small tooth disc; 39, second small tooth disc; 41, second one-way air valve. Specific implementation

[0025] In order to make those skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail in combination with the drawings.

[0026] As Figures 1-5As shown, a thin coal seam hydraulic support bracket includes a beam-plate frame 1 with a sliding cavity 14, and an extension frame 32 slidably disposed within the sliding cavity 14. Hydraulic cylinders 3 are symmetrically fixedly mounted on one outer wall of an mounting plate 11 on the beam-plate frame 1, and the output end of the hydraulic cylinder 3 is fixedly mounted on an extension plate 31 at the first end of the extension frame 32. A baffle 2 is fixedly mounted on the end of the beam-plate frame 1 above the extension frame 32, and a scraper 21, which adheres to the top of the extension frame 32, is fixedly mounted below the baffle 2. The hydraulic cylinder 3 pushes the extension frame 32 to slide within the sliding cavity 14 for extended support. The baffle 2 provides protection between the port of the sliding cavity 14 and the extension frame 32. When the extension frame 32 retracts into the sliding cavity 14, the scraper 21 adheres to the top of the extension frame 32, thus cleaning the coal slag adhering to the top of the extension frame 32 and reducing the risk of scratches on the inner wall of the sliding cavity 14 and the top of the extension frame 32 caused by coal slag entering the sliding cavity 14.

[0027] As a further technical solution provided by this utility model, the outer wall of the scraper 21 on the side opposite to the beam frame 1 is provided with an arc-shaped conical surface 22.

[0028] Specifically, such as Figure 1 As shown, when the scraper 21 moves relative to the extension frame 32 to scrape the slag through the arc-shaped conical surface 22, the slag falls off the extension frame 32 more effectively along the arc-shaped conical surface 22.

[0029] Furthermore, an auxiliary roller 36 is symmetrically rotated inside the slide cavity 14 and fits against the bottom of the extension frame 32, and a support plate 33 is fixedly installed at the second end of the extension frame 32. A bullseye wheel 34 is rolled on the side of the support plate 33 located on the inner wall of the slide cavity 14.

[0030] Specifically, the frictional force of the extension frame 32 when it slides within the slide cavity 14 is reduced by using the bullseye wheel 34 and the auxiliary roller 36.

[0031] Furthermore, a sealing rubber pad 35 is fixedly installed on the support plate 33, and an exhaust cavity 12 connected to the sliding cavity 14 is opened on the beam plate frame 1, with one end of the exhaust cavity 12 facing the top of the extension frame 32.

[0032] Specifically, by retracting the extension frame 32 into the slide cavity 14, the support plate 33 compresses the slide cavity 14. At this time, the compressed air in the slide cavity 14 is blown along the exhaust cavity 12 toward the top of the extension frame 32 to further clean the top of the extension frame 32.

[0033] Furthermore, the exhaust chamber 12 is provided with a conical air vent 13 facing the top of the extension frame 32 at one end, and the scraper 21 is located on one side of the conical air vent 13.

[0034] Specifically, the air flow rate discharged from the exhaust cavity 12 is accelerated by the tapered air outlet 13 to improve the cleaning effect, and the dust blown up is discharged to both ends of the scraping piece 21 due to the resistance of the scraping piece 21 to the air flow.

[0035] Further, the communication between the sliding cavity 14 and the exhaust cavity 12 is provided with a first one-way air valve 4, and the beam plate frame 1 is fixedly provided with a second one-way air valve 41 communicated with the sliding cavity 14.

[0036] Specifically, when the sliding cavity 14 is compressed by the supporting plate 33, the second one-way air valve 41 closes the first one-way air valve 4 to open, so that the gas in the sliding cavity 14 enters the exhaust cavity 12 along the first one-way air valve 4, and when the extension frame 32 slides out of the sliding cavity 14, the second one-way air valve 41 opens the first one-way air valve 4 to close, so that the external air enters the sliding cavity 14, and the gas along the exhaust cavity 12 is prevented from flowing back to suck the dust.

[0037] Further, the cleaning roller 23 is rotatably arranged between the scraping piece 21 and the tapered air outlet 13 on the baffle 2, and the cleaning roller 23 is attached to the top of the extension frame 32.

[0038] Specifically, the cleaning roller 23 is rotated and attached to the top of the extension frame 32 to further clean the top of the extension frame 32.

[0039] Further, the shaft of the auxiliary roller 36 is fixedly provided with a large gear plate 37, and the first small gear plate 38 rotatably arranged on the beam plate frame 1 and the second small gear plate 39 fixedly arranged on the cleaning roller 23 are in meshing relationship, and the large gear plate 37 and the first small gear plate 38 are in meshing relationship.

[0040] Specifically, when the extension frame 32 is slid in the sliding cavity 14 to be retracted by the hydraulic cylinder 3, the extension frame 32 drives the auxiliary roller 36 to rotate, and then the large gear plate 37 on the auxiliary roller 36 drives the first small gear plate 38 to rotate, and the first small gear plate 38 drives the second small gear plate 39 to rotate to drive the cleaning roller 23 to rotate and clean.

[0041] Further, the scraping piece 21 is a wear-resistant rubber pad.

[0042] Further, the baffle 2 is a stainless steel plate.

[0043] Working principle: when the hydraulic cylinder 3 pulls the extension frame 32 to slide in the sliding cavity 14 to shrink, at this time the extension frame 32 drives the auxiliary roller 36 to rotate, and then the large gear disc 37 on the auxiliary roller 36 drives the first small gear disc 38 to rotate, the first small gear disc 38 drives the second small gear disc 39 to rotate to make the cleaning roller 23 rotate and clean. At the same time, when the scraping piece 21 moves relative to the extension frame 32 to scrape the coal dregs, the scraping piece 21 cleans the coal dregs attached to the top of the extension frame 32, thereby reducing the problem of scratching the inner wall of the sliding cavity 14 and the top of the extension frame 32 when the coal dregs enter the sliding cavity 14. And the supporting plate 33 compresses the sliding cavity 14, at this time the compressed air in the sliding cavity 14 blows to the top of the extension frame 32 along the exhaust cavity 12, to further clean the top of the extension frame 32.

[0044] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A thin-seam hydraulic support shield characterized by the fact that, The utility model provides a beam plate frame (1) including the slide cavity (14) on which is arranged, and the extension frame (32) is arranged in the slide cavity (14) and slides, the mounting plate (11) one side outer wall of the beam plate frame (1) is fixedly installed symmetry with hydraulic cylinder (3), and the output of hydraulic cylinder (3) is fixedly installed on the extension plate (31) of the first end of extension frame (32) and is arranged, the end of beam plate frame (1) is fixedly installed with baffle (2) above extension frame (32), and the lower portion of baffle (2) is fixedly installed with the scraping piece (21) that sticks to the top of extension frame (32).

2. The hydraulic support support for thin coal seam according to claim 1, characterized in that, The scraping piece (21) is provided with an arc-shaped taper surface (22) relative to the outer wall of one side of the beam plate frame (1).

3. The hydraulic support support for thin coal seam according to claim 1, characterized in that, The auxiliary roller (36) that sticks to the bottom of extension frame (32) is arranged in the slide cavity (14) and rotates symmetrically, and the support plate (33) is fixedly installed at the second end of extension frame (32), and the cow eye wheel (34) is arranged in the side of the inner wall of slide cavity (14) and rolls on the support plate (33).

4. The hydraulic support support for thin coal seam according to claim 3, characterized in that, The sealing rubber pad (35) is fixedly installed on the support plate (33), and the exhaust cavity (12) that communicates with the slide cavity (14) is formed in the beam plate frame (1), and one end of the exhaust cavity (12) faces the top of extension frame (32).

5. The hydraulic support support for thin coal seam according to claim 4, characterized in that, The conical air port (13) that faces the top of extension frame (32) is arranged at one end of the exhaust cavity (12) of extension frame (32), and the scraping piece (21) is located at one side of the conical air port (13).

6. The hydraulic support support for thin coal seam according to claim 4, characterized in that, The first one-way air valve (4) is arranged at the communication part of the slide cavity (14) and the exhaust cavity (12), and the second one-way air valve (41) that communicates with the slide cavity (14) is fixedly installed on the beam plate frame (1).

7. The hydraulic support support for thin coal seam according to claim 1, characterized in that, The cleaning roller (23) is rotatably arranged on the baffle (2) between the scraping piece (21) and the conical air port (13), and the cleaning roller (23) sticks to the top of extension frame (32).

8. The hydraulic support support for thin coal seam according to claim 3, characterized in that, The large gear disc (37) is fixedly installed on the shaft of the auxiliary roller (36), and the first pinion (38) rotatably arranged on the beam plate frame (1) and the second pinion (39) fixedly installed on the cleaning roller (23) are intermeshed, and the large gear disc (37) and the first pinion (38) are intermeshed.

9. The hydraulic support support for thin coal seam according to claim 1, characterized in that, The scraping piece (21) is a wear-resistant rubber pad.

10. The hydraulic support support for thin coal seam according to claim 1, characterized in that, The baffle (2) is a stainless steel plate.

Images