CN218991652U - Jack protection structure for hydraulic support - Google Patents

Abstract

The utility model discloses a jack protection structure for a hydraulic support, which comprises a hydraulic support, a lower frame and an upper frame. A frame-shaped installation groove is formed inside the lower frame, and a frame is arranged on the top surface of the installation groove. Mouth, the longitudinal sides of the installation groove are provided with first shafts, the first shafts are coiled with first blocking plates, the lateral sides of the installation groove are provided with second shafts, and the second shafts are Both are coiled with a second blocking plate, the first blocking plate and the second blocking plate extend to the outside through the frame opening, and are installed on the upper frame body, one end of the upper frame body is provided with a strip opening, and the strip opening There are panels inserted. The utility model has a simple structure and can form a protective cover on the outside of the hydraulic support to effectively block stones and pulverized coal, while one end of the panel can be in conflict with the supporting platform of the hydraulic support and can block the opening above the hydraulic support to reduce the The amount of stones or coal powder entering the hydraulic support increases the safety and service life of use.

Description

Jack protection structure for hydraulic support

technical field

The utility model relates to the technical field of coal mine production, in particular to a jack protection structure for a hydraulic support.

Background technique

Hydraulic support is a kind of hydraulic power device that uses liquid pressure to generate support force and realizes automatic shifting for roof support and management. It is an indispensable supporting equipment for comprehensive mechanized coal mining. The hydraulic support is mainly used in the longwall fully mechanized mining face of the horizontal plane and the gently inclined thick coal seam of less than or equal to 10 degrees and the full-height mining of the top coal mining along the floor, and is also suitable for the horizontal layered top coal caving work of the steeply inclined ultra-thick coal seam noodle.

When the coal mine at the front end is vibrated during fully mechanized mining, ore will fly from the front end to the hydraulic support, and will enter the internal joints or shafts of the hydraulic support, which will easily cause the movable part to be stuck, and coal powder will enter during fully mechanized mining. The hydraulic jack inside the hydraulic support will cause greater wear and tear and reduce its service life.

Contents of the invention

The technical problem to be solved by the utility model is to provide a jack protection structure for a hydraulic support, which can block the four sides and the top of the hydraulic support as much as possible, so as to reduce the entry of stones or coal powder into the hydraulic support, increasing the Safety of use.

The utility model is realized through the following technical solutions: a jack protection structure for a hydraulic support, comprising a hydraulic support, a lower frame and an upper frame, the lower frame is installed on the lower end of the hydraulic support, and the upper frame is sleeved On the upper end of the hydraulic support, the upper frame and the lower frame are arranged in parallel. A frame-shaped installation groove is formed inside the lower frame. Both sides of the mounting groove are provided with a first shaft rod, and a first blocking plate is coiled on the first shaft rod, and a second shaft rod is provided on both sides of the horizontal direction of the installation groove, and a second shaft rod is coiled on the second shaft rod. The blocking plate, the first shaft rod is arranged above the second shaft rod, the first blocking plate and the second blocking plate both extend to the outside through the frame opening, and are installed on the upper frame body, the first blocking plate and the second blocking plate The blocking plates are combined to form a frame-shaped protective cover, and one end of the upper frame body is provided with a strip opening, and a panel is inserted into the strip opening.

As a preferred technical solution, grooves are provided on the inner wall of the installation groove facing the end faces of the first shaft and the second shaft, springs are arranged in the grooves, and the outermost rings of the springs are installed in the recesses. On the inner wall surface of the groove, both ends of the first shaft and the second shaft are installed in the innermost ring of the mainspring.

As a preferred technical solution, a plurality of first screw holes are horizontally provided on the bottom surface of the panel, a fixing plate is installed at one end of the upper frame, the fixing plate is arranged below the panel, and second screw holes are vertically provided on the fixing plate. Thumb bolts are threaded in the second screw holes, and one end of the thumb bolts is threaded in the corresponding first screw hole.

As a preferred technical solution, a plurality of third screw holes are provided on both sides of the upper frame in the length direction, and screw rods are threadedly connected in the third screw holes, and a hand wheel is installed on one end of the screw rods. A fourth screw hole is provided on both sides facing the third screw hole, and the other ends of the screw rods are screwed into the fourth screw hole.

As a preferred technical solution, both the first blocking plate and the second blocking plate are made of rubber material.

The beneficial effects of the utility model are: the utility model has a simple structure, and after the upper frame body is lifted up, the first blocking plate and the second blocking plate can be pulled out and arranged on the outside of the hydraulic support, so that The outer side forms a protective cover to effectively block stones and pulverized coal, and one end of the panel can be in conflict with the support platform of the hydraulic support, which can block the opening above the hydraulic support, further blocking stones and pulverized coal, and reducing the stone Or the amount of pulverized coal entering the interior of the hydraulic support increases the safety and service life of use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the top view of the lower frame of the utility model;

Fig. 3 is a top view of the upper frame of the utility model.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

As shown in Figure 1, Figure 2 and Figure 3, a jack protection structure for a hydraulic support of the present invention includes a hydraulic support 1, a lower frame 2 and an upper frame 3, and the lower frame 2 is installed on the hydraulic support 1, the upper frame 3 is sleeved on the upper end of the hydraulic support 1, the upper frame 3 and the lower frame 2 are arranged in parallel, and the inside of the lower frame 2 forms a frame-shaped installation groove 16, and the installation groove 16 The top surface is provided with a frame-shaped mouth that communicates with the outside world. Both sides of the installation groove 16 in the longitudinal direction are provided with first shafts 4, and the first shaft 4 is coiled with a first blocking plate 5. Both sides are provided with a second shaft 12, the second shaft 12 is coiled with a second blocking plate 6, the first shaft 4 is arranged above the second shaft 12, the first blocking plate 5 and the second The blocking plates 6 all extend to the outside world through the frame opening, and are installed on the upper frame body 3. The first blocking plate 5 and the second blocking plate 6 are combined to form a protective cover with a frame structure. One end of the upper frame body 3 is provided with A strip-shaped mouth, the panel 7 is inserted into the strip-shaped mouth.

In this embodiment, the inner wall of the installation groove 16 is provided with grooves at the end faces of the first shaft and the second shaft, and springs 13 are arranged in the grooves, and the outermost rings of the springs 13 are installed On the inner wall of the groove, both ends of the first shaft 4 and the second shaft 12 are installed in the innermost ring of the mainspring.

In this embodiment, a plurality of first screw holes 8 are horizontally provided on the bottom surface of the panel 7, a fixing plate 9 is installed on one end of the upper frame body 3, the fixing plate 9 is arranged below the panel, and the fixing plate 9 is vertically provided with a first screw hole 8. Two screw holes, the second screw hole is screwed with a thumb bolt 11, and one end of the thumb bolt 11 is screwed with the corresponding first screw hole 8.

In this embodiment, a plurality of third screw holes are provided on both sides of the upper frame body 3 in the length direction, and screw rods 15 are threaded in the third screw holes, and a hand wheel 14 is installed on one end of the screw rod 15. A fourth screw hole 17 is provided on both sides of the upper support platform facing the third screw hole, and the other end of the screw rod 15 is screwed into the fourth screw hole 17 .

In this embodiment, both the first blocking plate 5 and the second blocking plate 6 are made of rubber material, so that the first blocking plate and the second blocking plate can be bent and rolled.

When in use, the upper frame is lifted up, and the movement of the upper frame drives the first blocking plate and the second blocking plate, so that the first blocking plate and the second blocking plate are pulled out from the first shaft rod and the second shaft rod , the first blocking plate and the second blocking plate pulled out can form a frame-shaped protective cover outside the hydraulic support. In order to ensure its stability, the hand wheel can be rotated. The rotation of the hand wheel drives the screw, so that the screw One end is screwed into the fourth screw hole, and the pulled out first blocking plate and the second blocking plate are positioned to effectively block the stones and pulverized coal on the side, and one end of the panel can be in conflict with the supporting platform of the hydraulic support, which can Block the opening above the hydraulic support to further block stones and pulverized coal, so as to reduce the amount of stones or pulverized coal entering the hydraulic support, increasing the safety and service life of use;

Among them, because the panel is screwed by hand, when not in use, the panel can be drawn out along the strip opening, so that it can be placed and disassembled independently;

Among them, when not in use, the screw rod can be unscrewed from the fourth screw hole, the upper frame can be put down, and placed on the lower frame to reduce its height, while the first blocking plate and the second blocking plate are passed through the spring. The reverse twist can be wound up on the first shaft and the second shaft, and hidden in the installation groove to increase its service life.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any change or replacement that is not thought of through creative work should be covered within the scope of protection of the utility model . Therefore, the protection scope of the present utility model should be determined by the protection scope defined in the claims.

Claims (5)

1. The utility model provides a jack protective structure for hydraulic support which characterized in that: including hydraulic support (1), lower framework (2) and last framework (3), install in the lower extreme of hydraulic support (1) lower framework (2), go up the upper end that hydraulic support (1) was located to framework (3) cover, parallel arrangement between upper frame (3) and lower framework (2), the inside of lower framework (2) forms mounting groove (16) of frame type structure, be equipped with the frame type mouth with external intercommunication on the top surface of mounting groove (16), both sides in mounting groove (16) fore-and-aft all are equipped with first axostylus axostyle (4), all coil on first axostylus axostyle (4) and be equipped with first barrier plate (5), both sides in mounting groove (16) are equipped with second axostylus axostyle (12) all, all coil on second axostylus axostyle (12) and be equipped with second barrier plate (6), first axostylus axostyle (4) set up in the top of second axostylus axostyle (12), first barrier plate (5) and second barrier plate (6) all pass the frame type mouth and extend to the external world, and install on last framework (3), first barrier plate (5) and second barrier plate (6) form the combination type mouth in frame type mouth (3), strip shape structure is equipped with in strip panel.

2. The jack guard for a hydraulic stand according to claim 1, wherein: the inner wall surface of the mounting groove (16) is opposite to the end surfaces of the first shaft rod and the second shaft rod, grooves are formed in the inner wall surface of the mounting groove, a spring (13) is arranged in each groove, the outermost ring of the spring (13) is mounted on the inner wall surface of the grooves, and the two ends of the first shaft rod (4) and the second shaft rod (12) are mounted in the innermost ring of the spring.

3. The jack guard for a hydraulic stand according to claim 1, wherein: a plurality of first screw holes (8) are transversely formed in the bottom surface of the panel (7), a fixing plate (9) is arranged at one end of the upper frame body (3), the fixing plate (9) is arranged below the panel, a second screw hole is formed in the fixing plate (9) vertically, a hand-screwing bolt (11) is connected in the second screw hole in a threaded mode, and one end of the hand-screwing bolt (11) is connected with the corresponding first screw hole (8) in a threaded mode.

4. The jack guard for a hydraulic stand according to claim 1, wherein: the both sides of last framework (3) length direction all are equipped with a plurality of third screw holes, equal threaded connection has screw rod (15) in the third screw hole, hand wheel (14) are all installed to the one end of screw rod (15), and just to third screw hole department both sides of hydraulic support (1) top supporting platform all are equipped with fourth screw hole (17), and the equal threaded connection of screw rod (15) other end is in fourth screw hole (17).

5. The jack guard for a hydraulic stand according to claim 1, wherein: the first blocking plate (5) and the second blocking plate (6) are both made of rubber material.

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